forked from zhurui/management
12017 lines
308 KiB
JavaScript
12017 lines
308 KiB
JavaScript
/*!
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* Vue.js v2.6.11
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* (c) 2014-2019 Evan You
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* Released under the MIT License.
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*/
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/* */
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const emptyObject = Object.freeze({});
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// These helpers produce better VM code in JS engines due to their
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// explicitness and function inlining.
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function isUndef (v) {
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return v === undefined || v === null
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}
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function isDef (v) {
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return v !== undefined && v !== null
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}
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function isTrue (v) {
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return v === true
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}
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function isFalse (v) {
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return v === false
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}
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/**
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* Check if value is primitive.
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*/
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function isPrimitive (value) {
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return (
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typeof value === 'string' ||
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typeof value === 'number' ||
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// $flow-disable-line
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typeof value === 'symbol' ||
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typeof value === 'boolean'
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)
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}
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/**
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* Quick object check - this is primarily used to tell
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* Objects from primitive values when we know the value
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* is a JSON-compliant type.
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*/
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function isObject (obj) {
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return obj !== null && typeof obj === 'object'
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}
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/**
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* Get the raw type string of a value, e.g., [object Object].
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*/
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const _toString = Object.prototype.toString;
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function toRawType (value) {
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return _toString.call(value).slice(8, -1)
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}
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/**
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* Strict object type check. Only returns true
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* for plain JavaScript objects.
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*/
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function isPlainObject (obj) {
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return _toString.call(obj) === '[object Object]'
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}
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function isRegExp (v) {
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return _toString.call(v) === '[object RegExp]'
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}
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/**
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* Check if val is a valid array index.
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*/
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function isValidArrayIndex (val) {
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const n = parseFloat(String(val));
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return n >= 0 && Math.floor(n) === n && isFinite(val)
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}
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function isPromise (val) {
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return (
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isDef(val) &&
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typeof val.then === 'function' &&
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typeof val.catch === 'function'
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)
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}
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/**
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* Convert a value to a string that is actually rendered.
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*/
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function toString (val) {
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return val == null
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? ''
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: Array.isArray(val) || (isPlainObject(val) && val.toString === _toString)
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? JSON.stringify(val, null, 2)
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: String(val)
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}
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/**
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* Convert an input value to a number for persistence.
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* If the conversion fails, return original string.
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*/
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function toNumber (val) {
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const n = parseFloat(val);
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return isNaN(n) ? val : n
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}
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/**
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* Make a map and return a function for checking if a key
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* is in that map.
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*/
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function makeMap (
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str,
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expectsLowerCase
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) {
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const map = Object.create(null);
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const list = str.split(',');
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for (let i = 0; i < list.length; i++) {
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map[list[i]] = true;
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}
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return expectsLowerCase
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? val => map[val.toLowerCase()]
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: val => map[val]
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}
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/**
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* Check if a tag is a built-in tag.
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*/
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const isBuiltInTag = makeMap('slot,component', true);
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/**
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* Check if an attribute is a reserved attribute.
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*/
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const isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
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/**
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* Remove an item from an array.
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*/
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function remove (arr, item) {
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if (arr.length) {
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const index = arr.indexOf(item);
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if (index > -1) {
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return arr.splice(index, 1)
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}
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}
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}
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/**
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* Check whether an object has the property.
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*/
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const hasOwnProperty = Object.prototype.hasOwnProperty;
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function hasOwn (obj, key) {
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return hasOwnProperty.call(obj, key)
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}
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/**
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* Create a cached version of a pure function.
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*/
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function cached (fn) {
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const cache = Object.create(null);
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return (function cachedFn (str) {
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const hit = cache[str];
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return hit || (cache[str] = fn(str))
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})
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}
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/**
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* Camelize a hyphen-delimited string.
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*/
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const camelizeRE = /-(\w)/g;
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const camelize = cached((str) => {
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return str.replace(camelizeRE, (_, c) => c ? c.toUpperCase() : '')
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});
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/**
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* Capitalize a string.
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*/
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const capitalize = cached((str) => {
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return str.charAt(0).toUpperCase() + str.slice(1)
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});
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/**
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* Hyphenate a camelCase string.
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*/
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const hyphenateRE = /\B([A-Z])/g;
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const hyphenate = cached((str) => {
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return str.replace(hyphenateRE, '-$1').toLowerCase()
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});
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/**
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* Simple bind polyfill for environments that do not support it,
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* e.g., PhantomJS 1.x. Technically, we don't need this anymore
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* since native bind is now performant enough in most browsers.
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* But removing it would mean breaking code that was able to run in
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* PhantomJS 1.x, so this must be kept for backward compatibility.
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*/
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/* istanbul ignore next */
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function polyfillBind (fn, ctx) {
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function boundFn (a) {
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const l = arguments.length;
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return l
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? l > 1
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? fn.apply(ctx, arguments)
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: fn.call(ctx, a)
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: fn.call(ctx)
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}
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boundFn._length = fn.length;
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return boundFn
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}
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function nativeBind (fn, ctx) {
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return fn.bind(ctx)
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}
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const bind = Function.prototype.bind
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? nativeBind
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: polyfillBind;
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/**
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* Convert an Array-like object to a real Array.
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*/
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function toArray (list, start) {
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start = start || 0;
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let i = list.length - start;
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const ret = new Array(i);
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while (i--) {
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ret[i] = list[i + start];
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}
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return ret
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}
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/**
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* Mix properties into target object.
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*/
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function extend (to, _from) {
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for (const key in _from) {
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to[key] = _from[key];
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}
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return to
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}
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/**
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* Merge an Array of Objects into a single Object.
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*/
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function toObject (arr) {
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const res = {};
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for (let i = 0; i < arr.length; i++) {
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if (arr[i]) {
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extend(res, arr[i]);
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}
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}
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return res
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}
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/* eslint-disable no-unused-vars */
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/**
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* Perform no operation.
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* Stubbing args to make Flow happy without leaving useless transpiled code
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* with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
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*/
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function noop (a, b, c) {}
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/**
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* Always return false.
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*/
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const no = (a, b, c) => false;
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/* eslint-enable no-unused-vars */
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/**
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* Return the same value.
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*/
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const identity = (_) => _;
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/**
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* Generate a string containing static keys from compiler modules.
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*/
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function genStaticKeys (modules) {
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return modules.reduce((keys, m) => {
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return keys.concat(m.staticKeys || [])
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}, []).join(',')
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}
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/**
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* Check if two values are loosely equal - that is,
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* if they are plain objects, do they have the same shape?
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*/
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function looseEqual (a, b) {
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if (a === b) return true
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const isObjectA = isObject(a);
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const isObjectB = isObject(b);
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if (isObjectA && isObjectB) {
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try {
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const isArrayA = Array.isArray(a);
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const isArrayB = Array.isArray(b);
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if (isArrayA && isArrayB) {
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return a.length === b.length && a.every((e, i) => {
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return looseEqual(e, b[i])
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})
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} else if (a instanceof Date && b instanceof Date) {
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return a.getTime() === b.getTime()
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} else if (!isArrayA && !isArrayB) {
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const keysA = Object.keys(a);
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const keysB = Object.keys(b);
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return keysA.length === keysB.length && keysA.every(key => {
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return looseEqual(a[key], b[key])
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})
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} else {
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/* istanbul ignore next */
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return false
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}
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} catch (e) {
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/* istanbul ignore next */
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return false
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}
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} else if (!isObjectA && !isObjectB) {
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return String(a) === String(b)
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} else {
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return false
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}
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}
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/**
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* Return the first index at which a loosely equal value can be
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* found in the array (if value is a plain object, the array must
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* contain an object of the same shape), or -1 if it is not present.
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*/
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function looseIndexOf (arr, val) {
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for (let i = 0; i < arr.length; i++) {
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if (looseEqual(arr[i], val)) return i
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}
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return -1
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}
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/**
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* Ensure a function is called only once.
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*/
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function once (fn) {
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let called = false;
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return function () {
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if (!called) {
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called = true;
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fn.apply(this, arguments);
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}
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}
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}
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const SSR_ATTR = 'data-server-rendered';
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const ASSET_TYPES = [
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'component',
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'directive',
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'filter'
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];
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const LIFECYCLE_HOOKS = [
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'beforeCreate',
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'created',
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'beforeMount',
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'mounted',
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'beforeUpdate',
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'updated',
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'beforeDestroy',
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'destroyed',
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'activated',
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'deactivated',
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'errorCaptured',
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'serverPrefetch'
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];
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/* */
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var config = ({
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/**
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* Option merge strategies (used in core/util/options)
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*/
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// $flow-disable-line
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optionMergeStrategies: Object.create(null),
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/**
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* Whether to suppress warnings.
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*/
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silent: false,
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/**
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* Show production mode tip message on boot?
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*/
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productionTip: "development" !== 'production',
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/**
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* Whether to enable devtools
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*/
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devtools: "development" !== 'production',
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/**
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* Whether to record perf
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*/
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performance: false,
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/**
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* Error handler for watcher errors
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*/
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errorHandler: null,
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/**
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* Warn handler for watcher warns
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*/
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warnHandler: null,
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/**
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* Ignore certain custom elements
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*/
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ignoredElements: [],
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/**
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* Custom user key aliases for v-on
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*/
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// $flow-disable-line
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keyCodes: Object.create(null),
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/**
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* Check if a tag is reserved so that it cannot be registered as a
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* component. This is platform-dependent and may be overwritten.
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*/
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isReservedTag: no,
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/**
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* Check if an attribute is reserved so that it cannot be used as a component
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* prop. This is platform-dependent and may be overwritten.
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*/
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isReservedAttr: no,
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/**
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* Check if a tag is an unknown element.
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* Platform-dependent.
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*/
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isUnknownElement: no,
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/**
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* Get the namespace of an element
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*/
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getTagNamespace: noop,
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/**
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* Parse the real tag name for the specific platform.
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*/
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parsePlatformTagName: identity,
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/**
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* Check if an attribute must be bound using property, e.g. value
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* Platform-dependent.
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*/
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mustUseProp: no,
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/**
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* Perform updates asynchronously. Intended to be used by Vue Test Utils
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* This will significantly reduce performance if set to false.
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*/
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async: true,
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/**
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* Exposed for legacy reasons
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*/
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_lifecycleHooks: LIFECYCLE_HOOKS
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});
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/* */
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/**
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* unicode letters used for parsing html tags, component names and property paths.
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* using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
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* skipping \u10000-\uEFFFF due to it freezing up PhantomJS
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*/
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const unicodeRegExp = /a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD/;
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/**
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* Check if a string starts with $ or _
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*/
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function isReserved (str) {
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const c = (str + '').charCodeAt(0);
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return c === 0x24 || c === 0x5F
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}
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/**
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* Define a property.
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*/
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function def (obj, key, val, enumerable) {
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Object.defineProperty(obj, key, {
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value: val,
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enumerable: !!enumerable,
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writable: true,
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configurable: true
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});
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}
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/**
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* Parse simple path.
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*/
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const bailRE = new RegExp(`[^${unicodeRegExp.source}.$_\\d]`);
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function parsePath (path) {
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if (bailRE.test(path)) {
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return
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}
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const segments = path.split('.');
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return function (obj) {
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for (let i = 0; i < segments.length; i++) {
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if (!obj) return
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obj = obj[segments[i]];
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}
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return obj
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}
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}
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/* */
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// can we use __proto__?
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const hasProto = '__proto__' in {};
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// Browser environment sniffing
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const inBrowser = typeof window !== 'undefined';
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const inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
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const weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
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const UA = inBrowser && window.navigator.userAgent.toLowerCase();
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const isIE = UA && /msie|trident/.test(UA);
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const isIE9 = UA && UA.indexOf('msie 9.0') > 0;
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const isEdge = UA && UA.indexOf('edge/') > 0;
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const isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
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const isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
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const isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
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const isPhantomJS = UA && /phantomjs/.test(UA);
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|
const isFF = UA && UA.match(/firefox\/(\d+)/);
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|
|
// Firefox has a "watch" function on Object.prototype...
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const nativeWatch = ({}).watch;
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|
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let supportsPassive = false;
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|
if (inBrowser) {
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try {
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const opts = {};
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Object.defineProperty(opts, 'passive', ({
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get () {
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|
/* istanbul ignore next */
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|
supportsPassive = true;
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}
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|
})); // https://github.com/facebook/flow/issues/285
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|
window.addEventListener('test-passive', null, opts);
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} catch (e) {}
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}
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|
|
// this needs to be lazy-evaled because vue may be required before
|
|
// vue-server-renderer can set VUE_ENV
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|
let _isServer;
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|
const isServerRendering = () => {
|
|
if (_isServer === undefined) {
|
|
/* istanbul ignore if */
|
|
if (!inBrowser && !inWeex && typeof global !== 'undefined') {
|
|
// detect presence of vue-server-renderer and avoid
|
|
// Webpack shimming the process
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_isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
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} else {
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_isServer = false;
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}
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}
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return _isServer
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};
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|
|
// detect devtools
|
|
const devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
|
|
|
|
/* istanbul ignore next */
|
|
function isNative (Ctor) {
|
|
return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
|
|
}
|
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|
|
const hasSymbol =
|
|
typeof Symbol !== 'undefined' && isNative(Symbol) &&
|
|
typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
|
|
|
|
let _Set;
|
|
/* istanbul ignore if */ // $flow-disable-line
|
|
if (typeof Set !== 'undefined' && isNative(Set)) {
|
|
// use native Set when available.
|
|
_Set = Set;
|
|
} else {
|
|
// a non-standard Set polyfill that only works with primitive keys.
|
|
_Set = class Set {
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|
|
constructor () {
|
|
this.set = Object.create(null);
|
|
}
|
|
has (key) {
|
|
return this.set[key] === true
|
|
}
|
|
add (key) {
|
|
this.set[key] = true;
|
|
}
|
|
clear () {
|
|
this.set = Object.create(null);
|
|
}
|
|
};
|
|
}
|
|
|
|
/* */
|
|
|
|
let warn = noop;
|
|
let tip = noop;
|
|
let generateComponentTrace = (noop); // work around flow check
|
|
let formatComponentName = (noop);
|
|
|
|
{
|
|
const hasConsole = typeof console !== 'undefined';
|
|
const classifyRE = /(?:^|[-_])(\w)/g;
|
|
const classify = str => str
|
|
.replace(classifyRE, c => c.toUpperCase())
|
|
.replace(/[-_]/g, '');
|
|
|
|
warn = (msg, vm) => {
|
|
const trace = vm ? generateComponentTrace(vm) : '';
|
|
|
|
if (config.warnHandler) {
|
|
config.warnHandler.call(null, msg, vm, trace);
|
|
} else if (hasConsole && (!config.silent)) {
|
|
console.error(`[Vue warn]: ${msg}${trace}`);
|
|
}
|
|
};
|
|
|
|
tip = (msg, vm) => {
|
|
if (hasConsole && (!config.silent)) {
|
|
console.warn(`[Vue tip]: ${msg}` + (
|
|
vm ? generateComponentTrace(vm) : ''
|
|
));
|
|
}
|
|
};
|
|
|
|
formatComponentName = (vm, includeFile) => {
|
|
if (vm.$root === vm) {
|
|
return '<Root>'
|
|
}
|
|
const options = typeof vm === 'function' && vm.cid != null
|
|
? vm.options
|
|
: vm._isVue
|
|
? vm.$options || vm.constructor.options
|
|
: vm;
|
|
let name = options.name || options._componentTag;
|
|
const file = options.__file;
|
|
if (!name && file) {
|
|
const match = file.match(/([^/\\]+)\.vue$/);
|
|
name = match && match[1];
|
|
}
|
|
|
|
return (
|
|
(name ? `<${classify(name)}>` : `<Anonymous>`) +
|
|
(file && includeFile !== false ? ` at ${file}` : '')
|
|
)
|
|
};
|
|
|
|
const repeat = (str, n) => {
|
|
let res = '';
|
|
while (n) {
|
|
if (n % 2 === 1) res += str;
|
|
if (n > 1) str += str;
|
|
n >>= 1;
|
|
}
|
|
return res
|
|
};
|
|
|
|
generateComponentTrace = vm => {
|
|
if (vm._isVue && vm.$parent) {
|
|
const tree = [];
|
|
let currentRecursiveSequence = 0;
|
|
while (vm) {
|
|
if (tree.length > 0) {
|
|
const last = tree[tree.length - 1];
|
|
if (last.constructor === vm.constructor) {
|
|
currentRecursiveSequence++;
|
|
vm = vm.$parent;
|
|
continue
|
|
} else if (currentRecursiveSequence > 0) {
|
|
tree[tree.length - 1] = [last, currentRecursiveSequence];
|
|
currentRecursiveSequence = 0;
|
|
}
|
|
}
|
|
tree.push(vm);
|
|
vm = vm.$parent;
|
|
}
|
|
return '\n\nfound in\n\n' + tree
|
|
.map((vm, i) => `${
|
|
i === 0 ? '---> ' : repeat(' ', 5 + i * 2)
|
|
}${
|
|
Array.isArray(vm)
|
|
? `${formatComponentName(vm[0])}... (${vm[1]} recursive calls)`
|
|
: formatComponentName(vm)
|
|
}`)
|
|
.join('\n')
|
|
} else {
|
|
return `\n\n(found in ${formatComponentName(vm)})`
|
|
}
|
|
};
|
|
}
|
|
|
|
/* */
|
|
|
|
let uid = 0;
|
|
|
|
/**
|
|
* A dep is an observable that can have multiple
|
|
* directives subscribing to it.
|
|
*/
|
|
class Dep {
|
|
|
|
|
|
|
|
|
|
constructor () {
|
|
this.id = uid++;
|
|
this.subs = [];
|
|
}
|
|
|
|
addSub (sub) {
|
|
this.subs.push(sub);
|
|
}
|
|
|
|
removeSub (sub) {
|
|
remove(this.subs, sub);
|
|
}
|
|
|
|
depend () {
|
|
if (Dep.target) {
|
|
Dep.target.addDep(this);
|
|
}
|
|
}
|
|
|
|
notify () {
|
|
// stabilize the subscriber list first
|
|
const subs = this.subs.slice();
|
|
if (!config.async) {
|
|
// subs aren't sorted in scheduler if not running async
|
|
// we need to sort them now to make sure they fire in correct
|
|
// order
|
|
subs.sort((a, b) => a.id - b.id);
|
|
}
|
|
for (let i = 0, l = subs.length; i < l; i++) {
|
|
subs[i].update();
|
|
}
|
|
}
|
|
}
|
|
|
|
// The current target watcher being evaluated.
|
|
// This is globally unique because only one watcher
|
|
// can be evaluated at a time.
|
|
Dep.target = null;
|
|
const targetStack = [];
|
|
|
|
function pushTarget (target) {
|
|
targetStack.push(target);
|
|
Dep.target = target;
|
|
}
|
|
|
|
function popTarget () {
|
|
targetStack.pop();
|
|
Dep.target = targetStack[targetStack.length - 1];
|
|
}
|
|
|
|
/* */
|
|
|
|
class VNode {
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// rendered in this component's scope
|
|
|
|
|
|
// component instance
|
|
// component placeholder node
|
|
|
|
// strictly internal
|
|
// contains raw HTML? (server only)
|
|
// hoisted static node
|
|
// necessary for enter transition check
|
|
// empty comment placeholder?
|
|
// is a cloned node?
|
|
// is a v-once node?
|
|
// async component factory function
|
|
|
|
|
|
|
|
// real context vm for functional nodes
|
|
// for SSR caching
|
|
// used to store functional render context for devtools
|
|
// functional scope id support
|
|
|
|
constructor (
|
|
tag,
|
|
data,
|
|
children,
|
|
text,
|
|
elm,
|
|
context,
|
|
componentOptions,
|
|
asyncFactory
|
|
) {
|
|
this.tag = tag;
|
|
this.data = data;
|
|
this.children = children;
|
|
this.text = text;
|
|
this.elm = elm;
|
|
this.ns = undefined;
|
|
this.context = context;
|
|
this.fnContext = undefined;
|
|
this.fnOptions = undefined;
|
|
this.fnScopeId = undefined;
|
|
this.key = data && data.key;
|
|
this.componentOptions = componentOptions;
|
|
this.componentInstance = undefined;
|
|
this.parent = undefined;
|
|
this.raw = false;
|
|
this.isStatic = false;
|
|
this.isRootInsert = true;
|
|
this.isComment = false;
|
|
this.isCloned = false;
|
|
this.isOnce = false;
|
|
this.asyncFactory = asyncFactory;
|
|
this.asyncMeta = undefined;
|
|
this.isAsyncPlaceholder = false;
|
|
}
|
|
|
|
// DEPRECATED: alias for componentInstance for backwards compat.
|
|
/* istanbul ignore next */
|
|
get child () {
|
|
return this.componentInstance
|
|
}
|
|
}
|
|
|
|
const createEmptyVNode = (text = '') => {
|
|
const node = new VNode();
|
|
node.text = text;
|
|
node.isComment = true;
|
|
return node
|
|
};
|
|
|
|
function createTextVNode (val) {
|
|
return new VNode(undefined, undefined, undefined, String(val))
|
|
}
|
|
|
|
// optimized shallow clone
|
|
// used for static nodes and slot nodes because they may be reused across
|
|
// multiple renders, cloning them avoids errors when DOM manipulations rely
|
|
// on their elm reference.
|
|
function cloneVNode (vnode) {
|
|
const cloned = new VNode(
|
|
vnode.tag,
|
|
vnode.data,
|
|
// #7975
|
|
// clone children array to avoid mutating original in case of cloning
|
|
// a child.
|
|
vnode.children && vnode.children.slice(),
|
|
vnode.text,
|
|
vnode.elm,
|
|
vnode.context,
|
|
vnode.componentOptions,
|
|
vnode.asyncFactory
|
|
);
|
|
cloned.ns = vnode.ns;
|
|
cloned.isStatic = vnode.isStatic;
|
|
cloned.key = vnode.key;
|
|
cloned.isComment = vnode.isComment;
|
|
cloned.fnContext = vnode.fnContext;
|
|
cloned.fnOptions = vnode.fnOptions;
|
|
cloned.fnScopeId = vnode.fnScopeId;
|
|
cloned.asyncMeta = vnode.asyncMeta;
|
|
cloned.isCloned = true;
|
|
return cloned
|
|
}
|
|
|
|
/*
|
|
* not type checking this file because flow doesn't play well with
|
|
* dynamically accessing methods on Array prototype
|
|
*/
|
|
|
|
const arrayProto = Array.prototype;
|
|
const arrayMethods = Object.create(arrayProto);
|
|
|
|
const methodsToPatch = [
|
|
'push',
|
|
'pop',
|
|
'shift',
|
|
'unshift',
|
|
'splice',
|
|
'sort',
|
|
'reverse'
|
|
];
|
|
|
|
/**
|
|
* Intercept mutating methods and emit events
|
|
*/
|
|
methodsToPatch.forEach(function (method) {
|
|
// cache original method
|
|
const original = arrayProto[method];
|
|
def(arrayMethods, method, function mutator (...args) {
|
|
const result = original.apply(this, args);
|
|
const ob = this.__ob__;
|
|
let inserted;
|
|
switch (method) {
|
|
case 'push':
|
|
case 'unshift':
|
|
inserted = args;
|
|
break
|
|
case 'splice':
|
|
inserted = args.slice(2);
|
|
break
|
|
}
|
|
if (inserted) ob.observeArray(inserted);
|
|
// notify change
|
|
ob.dep.notify();
|
|
return result
|
|
});
|
|
});
|
|
|
|
/* */
|
|
|
|
const arrayKeys = Object.getOwnPropertyNames(arrayMethods);
|
|
|
|
/**
|
|
* In some cases we may want to disable observation inside a component's
|
|
* update computation.
|
|
*/
|
|
let shouldObserve = true;
|
|
|
|
function toggleObserving (value) {
|
|
shouldObserve = value;
|
|
}
|
|
|
|
/**
|
|
* Observer class that is attached to each observed
|
|
* object. Once attached, the observer converts the target
|
|
* object's property keys into getter/setters that
|
|
* collect dependencies and dispatch updates.
|
|
*/
|
|
class Observer {
|
|
|
|
|
|
// number of vms that have this object as root $data
|
|
|
|
constructor (value) {
|
|
this.value = value;
|
|
this.dep = new Dep();
|
|
this.vmCount = 0;
|
|
def(value, '__ob__', this);
|
|
if (Array.isArray(value)) {
|
|
if (hasProto) {
|
|
protoAugment(value, arrayMethods);
|
|
} else {
|
|
copyAugment(value, arrayMethods, arrayKeys);
|
|
}
|
|
this.observeArray(value);
|
|
} else {
|
|
this.walk(value);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Walk through all properties and convert them into
|
|
* getter/setters. This method should only be called when
|
|
* value type is Object.
|
|
*/
|
|
walk (obj) {
|
|
const keys = Object.keys(obj);
|
|
for (let i = 0; i < keys.length; i++) {
|
|
defineReactive$$1(obj, keys[i]);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Observe a list of Array items.
|
|
*/
|
|
observeArray (items) {
|
|
for (let i = 0, l = items.length; i < l; i++) {
|
|
observe(items[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
// helpers
|
|
|
|
/**
|
|
* Augment a target Object or Array by intercepting
|
|
* the prototype chain using __proto__
|
|
*/
|
|
function protoAugment (target, src) {
|
|
/* eslint-disable no-proto */
|
|
target.__proto__ = src;
|
|
/* eslint-enable no-proto */
|
|
}
|
|
|
|
/**
|
|
* Augment a target Object or Array by defining
|
|
* hidden properties.
|
|
*/
|
|
/* istanbul ignore next */
|
|
function copyAugment (target, src, keys) {
|
|
for (let i = 0, l = keys.length; i < l; i++) {
|
|
const key = keys[i];
|
|
def(target, key, src[key]);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Attempt to create an observer instance for a value,
|
|
* returns the new observer if successfully observed,
|
|
* or the existing observer if the value already has one.
|
|
*/
|
|
function observe (value, asRootData) {
|
|
if (!isObject(value) || value instanceof VNode) {
|
|
return
|
|
}
|
|
let ob;
|
|
if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
|
|
ob = value.__ob__;
|
|
} else if (
|
|
shouldObserve &&
|
|
!isServerRendering() &&
|
|
(Array.isArray(value) || isPlainObject(value)) &&
|
|
Object.isExtensible(value) &&
|
|
!value._isVue
|
|
) {
|
|
ob = new Observer(value);
|
|
}
|
|
if (asRootData && ob) {
|
|
ob.vmCount++;
|
|
}
|
|
return ob
|
|
}
|
|
|
|
/**
|
|
* Define a reactive property on an Object.
|
|
*/
|
|
function defineReactive$$1 (
|
|
obj,
|
|
key,
|
|
val,
|
|
customSetter,
|
|
shallow
|
|
) {
|
|
const dep = new Dep();
|
|
|
|
const property = Object.getOwnPropertyDescriptor(obj, key);
|
|
if (property && property.configurable === false) {
|
|
return
|
|
}
|
|
|
|
// cater for pre-defined getter/setters
|
|
const getter = property && property.get;
|
|
const setter = property && property.set;
|
|
if ((!getter || setter) && arguments.length === 2) {
|
|
val = obj[key];
|
|
}
|
|
|
|
let childOb = !shallow && observe(val);
|
|
Object.defineProperty(obj, key, {
|
|
enumerable: true,
|
|
configurable: true,
|
|
get: function reactiveGetter () {
|
|
const value = getter ? getter.call(obj) : val;
|
|
if (Dep.target) {
|
|
dep.depend();
|
|
if (childOb) {
|
|
childOb.dep.depend();
|
|
if (Array.isArray(value)) {
|
|
dependArray(value);
|
|
}
|
|
}
|
|
}
|
|
return value
|
|
},
|
|
set: function reactiveSetter (newVal) {
|
|
const value = getter ? getter.call(obj) : val;
|
|
/* eslint-disable no-self-compare */
|
|
if (newVal === value || (newVal !== newVal && value !== value)) {
|
|
return
|
|
}
|
|
/* eslint-enable no-self-compare */
|
|
if (customSetter) {
|
|
customSetter();
|
|
}
|
|
// #7981: for accessor properties without setter
|
|
if (getter && !setter) return
|
|
if (setter) {
|
|
setter.call(obj, newVal);
|
|
} else {
|
|
val = newVal;
|
|
}
|
|
childOb = !shallow && observe(newVal);
|
|
dep.notify();
|
|
}
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Set a property on an object. Adds the new property and
|
|
* triggers change notification if the property doesn't
|
|
* already exist.
|
|
*/
|
|
function set (target, key, val) {
|
|
if (isUndef(target) || isPrimitive(target)
|
|
) {
|
|
warn(`Cannot set reactive property on undefined, null, or primitive value: ${(target)}`);
|
|
}
|
|
if (Array.isArray(target) && isValidArrayIndex(key)) {
|
|
target.length = Math.max(target.length, key);
|
|
target.splice(key, 1, val);
|
|
return val
|
|
}
|
|
if (key in target && !(key in Object.prototype)) {
|
|
target[key] = val;
|
|
return val
|
|
}
|
|
const ob = (target).__ob__;
|
|
if (target._isVue || (ob && ob.vmCount)) {
|
|
warn(
|
|
'Avoid adding reactive properties to a Vue instance or its root $data ' +
|
|
'at runtime - declare it upfront in the data option.'
|
|
);
|
|
return val
|
|
}
|
|
if (!ob) {
|
|
target[key] = val;
|
|
return val
|
|
}
|
|
defineReactive$$1(ob.value, key, val);
|
|
ob.dep.notify();
|
|
return val
|
|
}
|
|
|
|
/**
|
|
* Delete a property and trigger change if necessary.
|
|
*/
|
|
function del (target, key) {
|
|
if (isUndef(target) || isPrimitive(target)
|
|
) {
|
|
warn(`Cannot delete reactive property on undefined, null, or primitive value: ${(target)}`);
|
|
}
|
|
if (Array.isArray(target) && isValidArrayIndex(key)) {
|
|
target.splice(key, 1);
|
|
return
|
|
}
|
|
const ob = (target).__ob__;
|
|
if (target._isVue || (ob && ob.vmCount)) {
|
|
warn(
|
|
'Avoid deleting properties on a Vue instance or its root $data ' +
|
|
'- just set it to null.'
|
|
);
|
|
return
|
|
}
|
|
if (!hasOwn(target, key)) {
|
|
return
|
|
}
|
|
delete target[key];
|
|
if (!ob) {
|
|
return
|
|
}
|
|
ob.dep.notify();
|
|
}
|
|
|
|
/**
|
|
* Collect dependencies on array elements when the array is touched, since
|
|
* we cannot intercept array element access like property getters.
|
|
*/
|
|
function dependArray (value) {
|
|
for (let e, i = 0, l = value.length; i < l; i++) {
|
|
e = value[i];
|
|
e && e.__ob__ && e.__ob__.dep.depend();
|
|
if (Array.isArray(e)) {
|
|
dependArray(e);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
/**
|
|
* Option overwriting strategies are functions that handle
|
|
* how to merge a parent option value and a child option
|
|
* value into the final value.
|
|
*/
|
|
const strats = config.optionMergeStrategies;
|
|
|
|
/**
|
|
* Options with restrictions
|
|
*/
|
|
{
|
|
strats.el = strats.propsData = function (parent, child, vm, key) {
|
|
if (!vm) {
|
|
warn(
|
|
`option "${key}" can only be used during instance ` +
|
|
'creation with the `new` keyword.'
|
|
);
|
|
}
|
|
return defaultStrat(parent, child)
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Helper that recursively merges two data objects together.
|
|
*/
|
|
function mergeData (to, from) {
|
|
if (!from) return to
|
|
let key, toVal, fromVal;
|
|
|
|
const keys = hasSymbol
|
|
? Reflect.ownKeys(from)
|
|
: Object.keys(from);
|
|
|
|
for (let i = 0; i < keys.length; i++) {
|
|
key = keys[i];
|
|
// in case the object is already observed...
|
|
if (key === '__ob__') continue
|
|
toVal = to[key];
|
|
fromVal = from[key];
|
|
if (!hasOwn(to, key)) {
|
|
set(to, key, fromVal);
|
|
} else if (
|
|
toVal !== fromVal &&
|
|
isPlainObject(toVal) &&
|
|
isPlainObject(fromVal)
|
|
) {
|
|
mergeData(toVal, fromVal);
|
|
}
|
|
}
|
|
return to
|
|
}
|
|
|
|
/**
|
|
* Data
|
|
*/
|
|
function mergeDataOrFn (
|
|
parentVal,
|
|
childVal,
|
|
vm
|
|
) {
|
|
if (!vm) {
|
|
// in a Vue.extend merge, both should be functions
|
|
if (!childVal) {
|
|
return parentVal
|
|
}
|
|
if (!parentVal) {
|
|
return childVal
|
|
}
|
|
// when parentVal & childVal are both present,
|
|
// we need to return a function that returns the
|
|
// merged result of both functions... no need to
|
|
// check if parentVal is a function here because
|
|
// it has to be a function to pass previous merges.
|
|
return function mergedDataFn () {
|
|
return mergeData(
|
|
typeof childVal === 'function' ? childVal.call(this, this) : childVal,
|
|
typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
|
|
)
|
|
}
|
|
} else {
|
|
return function mergedInstanceDataFn () {
|
|
// instance merge
|
|
const instanceData = typeof childVal === 'function'
|
|
? childVal.call(vm, vm)
|
|
: childVal;
|
|
const defaultData = typeof parentVal === 'function'
|
|
? parentVal.call(vm, vm)
|
|
: parentVal;
|
|
if (instanceData) {
|
|
return mergeData(instanceData, defaultData)
|
|
} else {
|
|
return defaultData
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
strats.data = function (
|
|
parentVal,
|
|
childVal,
|
|
vm
|
|
) {
|
|
if (!vm) {
|
|
if (childVal && typeof childVal !== 'function') {
|
|
warn(
|
|
'The "data" option should be a function ' +
|
|
'that returns a per-instance value in component ' +
|
|
'definitions.',
|
|
vm
|
|
);
|
|
|
|
return parentVal
|
|
}
|
|
return mergeDataOrFn(parentVal, childVal)
|
|
}
|
|
|
|
return mergeDataOrFn(parentVal, childVal, vm)
|
|
};
|
|
|
|
/**
|
|
* Hooks and props are merged as arrays.
|
|
*/
|
|
function mergeHook (
|
|
parentVal,
|
|
childVal
|
|
) {
|
|
const res = childVal
|
|
? parentVal
|
|
? parentVal.concat(childVal)
|
|
: Array.isArray(childVal)
|
|
? childVal
|
|
: [childVal]
|
|
: parentVal;
|
|
return res
|
|
? dedupeHooks(res)
|
|
: res
|
|
}
|
|
|
|
function dedupeHooks (hooks) {
|
|
const res = [];
|
|
for (let i = 0; i < hooks.length; i++) {
|
|
if (res.indexOf(hooks[i]) === -1) {
|
|
res.push(hooks[i]);
|
|
}
|
|
}
|
|
return res
|
|
}
|
|
|
|
LIFECYCLE_HOOKS.forEach(hook => {
|
|
strats[hook] = mergeHook;
|
|
});
|
|
|
|
/**
|
|
* Assets
|
|
*
|
|
* When a vm is present (instance creation), we need to do
|
|
* a three-way merge between constructor options, instance
|
|
* options and parent options.
|
|
*/
|
|
function mergeAssets (
|
|
parentVal,
|
|
childVal,
|
|
vm,
|
|
key
|
|
) {
|
|
const res = Object.create(parentVal || null);
|
|
if (childVal) {
|
|
assertObjectType(key, childVal, vm);
|
|
return extend(res, childVal)
|
|
} else {
|
|
return res
|
|
}
|
|
}
|
|
|
|
ASSET_TYPES.forEach(function (type) {
|
|
strats[type + 's'] = mergeAssets;
|
|
});
|
|
|
|
/**
|
|
* Watchers.
|
|
*
|
|
* Watchers hashes should not overwrite one
|
|
* another, so we merge them as arrays.
|
|
*/
|
|
strats.watch = function (
|
|
parentVal,
|
|
childVal,
|
|
vm,
|
|
key
|
|
) {
|
|
// work around Firefox's Object.prototype.watch...
|
|
if (parentVal === nativeWatch) parentVal = undefined;
|
|
if (childVal === nativeWatch) childVal = undefined;
|
|
/* istanbul ignore if */
|
|
if (!childVal) return Object.create(parentVal || null)
|
|
{
|
|
assertObjectType(key, childVal, vm);
|
|
}
|
|
if (!parentVal) return childVal
|
|
const ret = {};
|
|
extend(ret, parentVal);
|
|
for (const key in childVal) {
|
|
let parent = ret[key];
|
|
const child = childVal[key];
|
|
if (parent && !Array.isArray(parent)) {
|
|
parent = [parent];
|
|
}
|
|
ret[key] = parent
|
|
? parent.concat(child)
|
|
: Array.isArray(child) ? child : [child];
|
|
}
|
|
return ret
|
|
};
|
|
|
|
/**
|
|
* Other object hashes.
|
|
*/
|
|
strats.props =
|
|
strats.methods =
|
|
strats.inject =
|
|
strats.computed = function (
|
|
parentVal,
|
|
childVal,
|
|
vm,
|
|
key
|
|
) {
|
|
if (childVal && "development" !== 'production') {
|
|
assertObjectType(key, childVal, vm);
|
|
}
|
|
if (!parentVal) return childVal
|
|
const ret = Object.create(null);
|
|
extend(ret, parentVal);
|
|
if (childVal) extend(ret, childVal);
|
|
return ret
|
|
};
|
|
strats.provide = mergeDataOrFn;
|
|
|
|
/**
|
|
* Default strategy.
|
|
*/
|
|
const defaultStrat = function (parentVal, childVal) {
|
|
return childVal === undefined
|
|
? parentVal
|
|
: childVal
|
|
};
|
|
|
|
/**
|
|
* Validate component names
|
|
*/
|
|
function checkComponents (options) {
|
|
for (const key in options.components) {
|
|
validateComponentName(key);
|
|
}
|
|
}
|
|
|
|
function validateComponentName (name) {
|
|
if (!new RegExp(`^[a-zA-Z][\\-\\.0-9_${unicodeRegExp.source}]*$`).test(name)) {
|
|
warn(
|
|
'Invalid component name: "' + name + '". Component names ' +
|
|
'should conform to valid custom element name in html5 specification.'
|
|
);
|
|
}
|
|
if (isBuiltInTag(name) || config.isReservedTag(name)) {
|
|
warn(
|
|
'Do not use built-in or reserved HTML elements as component ' +
|
|
'id: ' + name
|
|
);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Ensure all props option syntax are normalized into the
|
|
* Object-based format.
|
|
*/
|
|
function normalizeProps (options, vm) {
|
|
const props = options.props;
|
|
if (!props) return
|
|
const res = {};
|
|
let i, val, name;
|
|
if (Array.isArray(props)) {
|
|
i = props.length;
|
|
while (i--) {
|
|
val = props[i];
|
|
if (typeof val === 'string') {
|
|
name = camelize(val);
|
|
res[name] = { type: null };
|
|
} else {
|
|
warn('props must be strings when using array syntax.');
|
|
}
|
|
}
|
|
} else if (isPlainObject(props)) {
|
|
for (const key in props) {
|
|
val = props[key];
|
|
name = camelize(key);
|
|
res[name] = isPlainObject(val)
|
|
? val
|
|
: { type: val };
|
|
}
|
|
} else {
|
|
warn(
|
|
`Invalid value for option "props": expected an Array or an Object, ` +
|
|
`but got ${toRawType(props)}.`,
|
|
vm
|
|
);
|
|
}
|
|
options.props = res;
|
|
}
|
|
|
|
/**
|
|
* Normalize all injections into Object-based format
|
|
*/
|
|
function normalizeInject (options, vm) {
|
|
const inject = options.inject;
|
|
if (!inject) return
|
|
const normalized = options.inject = {};
|
|
if (Array.isArray(inject)) {
|
|
for (let i = 0; i < inject.length; i++) {
|
|
normalized[inject[i]] = { from: inject[i] };
|
|
}
|
|
} else if (isPlainObject(inject)) {
|
|
for (const key in inject) {
|
|
const val = inject[key];
|
|
normalized[key] = isPlainObject(val)
|
|
? extend({ from: key }, val)
|
|
: { from: val };
|
|
}
|
|
} else {
|
|
warn(
|
|
`Invalid value for option "inject": expected an Array or an Object, ` +
|
|
`but got ${toRawType(inject)}.`,
|
|
vm
|
|
);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Normalize raw function directives into object format.
|
|
*/
|
|
function normalizeDirectives (options) {
|
|
const dirs = options.directives;
|
|
if (dirs) {
|
|
for (const key in dirs) {
|
|
const def$$1 = dirs[key];
|
|
if (typeof def$$1 === 'function') {
|
|
dirs[key] = { bind: def$$1, update: def$$1 };
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function assertObjectType (name, value, vm) {
|
|
if (!isPlainObject(value)) {
|
|
warn(
|
|
`Invalid value for option "${name}": expected an Object, ` +
|
|
`but got ${toRawType(value)}.`,
|
|
vm
|
|
);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Merge two option objects into a new one.
|
|
* Core utility used in both instantiation and inheritance.
|
|
*/
|
|
function mergeOptions (
|
|
parent,
|
|
child,
|
|
vm
|
|
) {
|
|
{
|
|
checkComponents(child);
|
|
}
|
|
|
|
if (typeof child === 'function') {
|
|
child = child.options;
|
|
}
|
|
|
|
normalizeProps(child, vm);
|
|
normalizeInject(child, vm);
|
|
normalizeDirectives(child);
|
|
|
|
// Apply extends and mixins on the child options,
|
|
// but only if it is a raw options object that isn't
|
|
// the result of another mergeOptions call.
|
|
// Only merged options has the _base property.
|
|
if (!child._base) {
|
|
if (child.extends) {
|
|
parent = mergeOptions(parent, child.extends, vm);
|
|
}
|
|
if (child.mixins) {
|
|
for (let i = 0, l = child.mixins.length; i < l; i++) {
|
|
parent = mergeOptions(parent, child.mixins[i], vm);
|
|
}
|
|
}
|
|
}
|
|
|
|
const options = {};
|
|
let key;
|
|
for (key in parent) {
|
|
mergeField(key);
|
|
}
|
|
for (key in child) {
|
|
if (!hasOwn(parent, key)) {
|
|
mergeField(key);
|
|
}
|
|
}
|
|
function mergeField (key) {
|
|
const strat = strats[key] || defaultStrat;
|
|
options[key] = strat(parent[key], child[key], vm, key);
|
|
}
|
|
return options
|
|
}
|
|
|
|
/**
|
|
* Resolve an asset.
|
|
* This function is used because child instances need access
|
|
* to assets defined in its ancestor chain.
|
|
*/
|
|
function resolveAsset (
|
|
options,
|
|
type,
|
|
id,
|
|
warnMissing
|
|
) {
|
|
/* istanbul ignore if */
|
|
if (typeof id !== 'string') {
|
|
return
|
|
}
|
|
const assets = options[type];
|
|
// check local registration variations first
|
|
if (hasOwn(assets, id)) return assets[id]
|
|
const camelizedId = camelize(id);
|
|
if (hasOwn(assets, camelizedId)) return assets[camelizedId]
|
|
const PascalCaseId = capitalize(camelizedId);
|
|
if (hasOwn(assets, PascalCaseId)) return assets[PascalCaseId]
|
|
// fallback to prototype chain
|
|
const res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
|
|
if (warnMissing && !res) {
|
|
warn(
|
|
'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
|
|
options
|
|
);
|
|
}
|
|
return res
|
|
}
|
|
|
|
/* */
|
|
|
|
|
|
|
|
function validateProp (
|
|
key,
|
|
propOptions,
|
|
propsData,
|
|
vm
|
|
) {
|
|
const prop = propOptions[key];
|
|
const absent = !hasOwn(propsData, key);
|
|
let value = propsData[key];
|
|
// boolean casting
|
|
const booleanIndex = getTypeIndex(Boolean, prop.type);
|
|
if (booleanIndex > -1) {
|
|
if (absent && !hasOwn(prop, 'default')) {
|
|
value = false;
|
|
} else if (value === '' || value === hyphenate(key)) {
|
|
// only cast empty string / same name to boolean if
|
|
// boolean has higher priority
|
|
const stringIndex = getTypeIndex(String, prop.type);
|
|
if (stringIndex < 0 || booleanIndex < stringIndex) {
|
|
value = true;
|
|
}
|
|
}
|
|
}
|
|
// check default value
|
|
if (value === undefined) {
|
|
value = getPropDefaultValue(vm, prop, key);
|
|
// since the default value is a fresh copy,
|
|
// make sure to observe it.
|
|
const prevShouldObserve = shouldObserve;
|
|
toggleObserving(true);
|
|
observe(value);
|
|
toggleObserving(prevShouldObserve);
|
|
}
|
|
{
|
|
assertProp(prop, key, value, vm, absent);
|
|
}
|
|
return value
|
|
}
|
|
|
|
/**
|
|
* Get the default value of a prop.
|
|
*/
|
|
function getPropDefaultValue (vm, prop, key) {
|
|
// no default, return undefined
|
|
if (!hasOwn(prop, 'default')) {
|
|
return undefined
|
|
}
|
|
const def = prop.default;
|
|
// warn against non-factory defaults for Object & Array
|
|
if (isObject(def)) {
|
|
warn(
|
|
'Invalid default value for prop "' + key + '": ' +
|
|
'Props with type Object/Array must use a factory function ' +
|
|
'to return the default value.',
|
|
vm
|
|
);
|
|
}
|
|
// the raw prop value was also undefined from previous render,
|
|
// return previous default value to avoid unnecessary watcher trigger
|
|
if (vm && vm.$options.propsData &&
|
|
vm.$options.propsData[key] === undefined &&
|
|
vm._props[key] !== undefined
|
|
) {
|
|
return vm._props[key]
|
|
}
|
|
// call factory function for non-Function types
|
|
// a value is Function if its prototype is function even across different execution context
|
|
return typeof def === 'function' && getType(prop.type) !== 'Function'
|
|
? def.call(vm)
|
|
: def
|
|
}
|
|
|
|
/**
|
|
* Assert whether a prop is valid.
|
|
*/
|
|
function assertProp (
|
|
prop,
|
|
name,
|
|
value,
|
|
vm,
|
|
absent
|
|
) {
|
|
if (prop.required && absent) {
|
|
warn(
|
|
'Missing required prop: "' + name + '"',
|
|
vm
|
|
);
|
|
return
|
|
}
|
|
if (value == null && !prop.required) {
|
|
return
|
|
}
|
|
let type = prop.type;
|
|
let valid = !type || type === true;
|
|
const expectedTypes = [];
|
|
if (type) {
|
|
if (!Array.isArray(type)) {
|
|
type = [type];
|
|
}
|
|
for (let i = 0; i < type.length && !valid; i++) {
|
|
const assertedType = assertType(value, type[i]);
|
|
expectedTypes.push(assertedType.expectedType || '');
|
|
valid = assertedType.valid;
|
|
}
|
|
}
|
|
|
|
if (!valid) {
|
|
warn(
|
|
getInvalidTypeMessage(name, value, expectedTypes),
|
|
vm
|
|
);
|
|
return
|
|
}
|
|
const validator = prop.validator;
|
|
if (validator) {
|
|
if (!validator(value)) {
|
|
warn(
|
|
'Invalid prop: custom validator check failed for prop "' + name + '".',
|
|
vm
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
const simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;
|
|
|
|
function assertType (value, type) {
|
|
let valid;
|
|
const expectedType = getType(type);
|
|
if (simpleCheckRE.test(expectedType)) {
|
|
const t = typeof value;
|
|
valid = t === expectedType.toLowerCase();
|
|
// for primitive wrapper objects
|
|
if (!valid && t === 'object') {
|
|
valid = value instanceof type;
|
|
}
|
|
} else if (expectedType === 'Object') {
|
|
valid = isPlainObject(value);
|
|
} else if (expectedType === 'Array') {
|
|
valid = Array.isArray(value);
|
|
} else {
|
|
valid = value instanceof type;
|
|
}
|
|
return {
|
|
valid,
|
|
expectedType
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Use function string name to check built-in types,
|
|
* because a simple equality check will fail when running
|
|
* across different vms / iframes.
|
|
*/
|
|
function getType (fn) {
|
|
const match = fn && fn.toString().match(/^\s*function (\w+)/);
|
|
return match ? match[1] : ''
|
|
}
|
|
|
|
function isSameType (a, b) {
|
|
return getType(a) === getType(b)
|
|
}
|
|
|
|
function getTypeIndex (type, expectedTypes) {
|
|
if (!Array.isArray(expectedTypes)) {
|
|
return isSameType(expectedTypes, type) ? 0 : -1
|
|
}
|
|
for (let i = 0, len = expectedTypes.length; i < len; i++) {
|
|
if (isSameType(expectedTypes[i], type)) {
|
|
return i
|
|
}
|
|
}
|
|
return -1
|
|
}
|
|
|
|
function getInvalidTypeMessage (name, value, expectedTypes) {
|
|
let message = `Invalid prop: type check failed for prop "${name}".` +
|
|
` Expected ${expectedTypes.map(capitalize).join(', ')}`;
|
|
const expectedType = expectedTypes[0];
|
|
const receivedType = toRawType(value);
|
|
const expectedValue = styleValue(value, expectedType);
|
|
const receivedValue = styleValue(value, receivedType);
|
|
// check if we need to specify expected value
|
|
if (expectedTypes.length === 1 &&
|
|
isExplicable(expectedType) &&
|
|
!isBoolean(expectedType, receivedType)) {
|
|
message += ` with value ${expectedValue}`;
|
|
}
|
|
message += `, got ${receivedType} `;
|
|
// check if we need to specify received value
|
|
if (isExplicable(receivedType)) {
|
|
message += `with value ${receivedValue}.`;
|
|
}
|
|
return message
|
|
}
|
|
|
|
function styleValue (value, type) {
|
|
if (type === 'String') {
|
|
return `"${value}"`
|
|
} else if (type === 'Number') {
|
|
return `${Number(value)}`
|
|
} else {
|
|
return `${value}`
|
|
}
|
|
}
|
|
|
|
function isExplicable (value) {
|
|
const explicitTypes = ['string', 'number', 'boolean'];
|
|
return explicitTypes.some(elem => value.toLowerCase() === elem)
|
|
}
|
|
|
|
function isBoolean (...args) {
|
|
return args.some(elem => elem.toLowerCase() === 'boolean')
|
|
}
|
|
|
|
/* */
|
|
|
|
function handleError (err, vm, info) {
|
|
// Deactivate deps tracking while processing error handler to avoid possible infinite rendering.
|
|
// See: https://github.com/vuejs/vuex/issues/1505
|
|
pushTarget();
|
|
try {
|
|
if (vm) {
|
|
let cur = vm;
|
|
while ((cur = cur.$parent)) {
|
|
const hooks = cur.$options.errorCaptured;
|
|
if (hooks) {
|
|
for (let i = 0; i < hooks.length; i++) {
|
|
try {
|
|
const capture = hooks[i].call(cur, err, vm, info) === false;
|
|
if (capture) return
|
|
} catch (e) {
|
|
globalHandleError(e, cur, 'errorCaptured hook');
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
globalHandleError(err, vm, info);
|
|
} finally {
|
|
popTarget();
|
|
}
|
|
}
|
|
|
|
function invokeWithErrorHandling (
|
|
handler,
|
|
context,
|
|
args,
|
|
vm,
|
|
info
|
|
) {
|
|
let res;
|
|
try {
|
|
res = args ? handler.apply(context, args) : handler.call(context);
|
|
if (res && !res._isVue && isPromise(res) && !res._handled) {
|
|
res.catch(e => handleError(e, vm, info + ` (Promise/async)`));
|
|
// issue #9511
|
|
// avoid catch triggering multiple times when nested calls
|
|
res._handled = true;
|
|
}
|
|
} catch (e) {
|
|
handleError(e, vm, info);
|
|
}
|
|
return res
|
|
}
|
|
|
|
function globalHandleError (err, vm, info) {
|
|
if (config.errorHandler) {
|
|
try {
|
|
return config.errorHandler.call(null, err, vm, info)
|
|
} catch (e) {
|
|
// if the user intentionally throws the original error in the handler,
|
|
// do not log it twice
|
|
if (e !== err) {
|
|
logError(e, null, 'config.errorHandler');
|
|
}
|
|
}
|
|
}
|
|
logError(err, vm, info);
|
|
}
|
|
|
|
function logError (err, vm, info) {
|
|
{
|
|
warn(`Error in ${info}: "${err.toString()}"`, vm);
|
|
}
|
|
/* istanbul ignore else */
|
|
if ((inBrowser || inWeex) && typeof console !== 'undefined') {
|
|
console.error(err);
|
|
} else {
|
|
throw err
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
let isUsingMicroTask = false;
|
|
|
|
const callbacks = [];
|
|
let pending = false;
|
|
|
|
function flushCallbacks () {
|
|
pending = false;
|
|
const copies = callbacks.slice(0);
|
|
callbacks.length = 0;
|
|
for (let i = 0; i < copies.length; i++) {
|
|
copies[i]();
|
|
}
|
|
}
|
|
|
|
// Here we have async deferring wrappers using microtasks.
|
|
// In 2.5 we used (macro) tasks (in combination with microtasks).
|
|
// However, it has subtle problems when state is changed right before repaint
|
|
// (e.g. #6813, out-in transitions).
|
|
// Also, using (macro) tasks in event handler would cause some weird behaviors
|
|
// that cannot be circumvented (e.g. #7109, #7153, #7546, #7834, #8109).
|
|
// So we now use microtasks everywhere, again.
|
|
// A major drawback of this tradeoff is that there are some scenarios
|
|
// where microtasks have too high a priority and fire in between supposedly
|
|
// sequential events (e.g. #4521, #6690, which have workarounds)
|
|
// or even between bubbling of the same event (#6566).
|
|
let timerFunc;
|
|
|
|
// The nextTick behavior leverages the microtask queue, which can be accessed
|
|
// via either native Promise.then or MutationObserver.
|
|
// MutationObserver has wider support, however it is seriously bugged in
|
|
// UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
|
|
// completely stops working after triggering a few times... so, if native
|
|
// Promise is available, we will use it:
|
|
/* istanbul ignore next, $flow-disable-line */
|
|
if (typeof Promise !== 'undefined' && isNative(Promise)) {
|
|
const p = Promise.resolve();
|
|
timerFunc = () => {
|
|
p.then(flushCallbacks);
|
|
// In problematic UIWebViews, Promise.then doesn't completely break, but
|
|
// it can get stuck in a weird state where callbacks are pushed into the
|
|
// microtask queue but the queue isn't being flushed, until the browser
|
|
// needs to do some other work, e.g. handle a timer. Therefore we can
|
|
// "force" the microtask queue to be flushed by adding an empty timer.
|
|
if (isIOS) setTimeout(noop);
|
|
};
|
|
isUsingMicroTask = true;
|
|
} else if (!isIE && typeof MutationObserver !== 'undefined' && (
|
|
isNative(MutationObserver) ||
|
|
// PhantomJS and iOS 7.x
|
|
MutationObserver.toString() === '[object MutationObserverConstructor]'
|
|
)) {
|
|
// Use MutationObserver where native Promise is not available,
|
|
// e.g. PhantomJS, iOS7, Android 4.4
|
|
// (#6466 MutationObserver is unreliable in IE11)
|
|
let counter = 1;
|
|
const observer = new MutationObserver(flushCallbacks);
|
|
const textNode = document.createTextNode(String(counter));
|
|
observer.observe(textNode, {
|
|
characterData: true
|
|
});
|
|
timerFunc = () => {
|
|
counter = (counter + 1) % 2;
|
|
textNode.data = String(counter);
|
|
};
|
|
isUsingMicroTask = true;
|
|
} else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
|
|
// Fallback to setImmediate.
|
|
// Technically it leverages the (macro) task queue,
|
|
// but it is still a better choice than setTimeout.
|
|
timerFunc = () => {
|
|
setImmediate(flushCallbacks);
|
|
};
|
|
} else {
|
|
// Fallback to setTimeout.
|
|
timerFunc = () => {
|
|
setTimeout(flushCallbacks, 0);
|
|
};
|
|
}
|
|
|
|
function nextTick (cb, ctx) {
|
|
let _resolve;
|
|
callbacks.push(() => {
|
|
if (cb) {
|
|
try {
|
|
cb.call(ctx);
|
|
} catch (e) {
|
|
handleError(e, ctx, 'nextTick');
|
|
}
|
|
} else if (_resolve) {
|
|
_resolve(ctx);
|
|
}
|
|
});
|
|
if (!pending) {
|
|
pending = true;
|
|
timerFunc();
|
|
}
|
|
// $flow-disable-line
|
|
if (!cb && typeof Promise !== 'undefined') {
|
|
return new Promise(resolve => {
|
|
_resolve = resolve;
|
|
})
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
let mark;
|
|
let measure;
|
|
|
|
{
|
|
const perf = inBrowser && window.performance;
|
|
/* istanbul ignore if */
|
|
if (
|
|
perf &&
|
|
perf.mark &&
|
|
perf.measure &&
|
|
perf.clearMarks &&
|
|
perf.clearMeasures
|
|
) {
|
|
mark = tag => perf.mark(tag);
|
|
measure = (name, startTag, endTag) => {
|
|
perf.measure(name, startTag, endTag);
|
|
perf.clearMarks(startTag);
|
|
perf.clearMarks(endTag);
|
|
// perf.clearMeasures(name)
|
|
};
|
|
}
|
|
}
|
|
|
|
/* not type checking this file because flow doesn't play well with Proxy */
|
|
|
|
let initProxy;
|
|
|
|
{
|
|
const allowedGlobals = makeMap(
|
|
'Infinity,undefined,NaN,isFinite,isNaN,' +
|
|
'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
|
|
'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' +
|
|
'require' // for Webpack/Browserify
|
|
);
|
|
|
|
const warnNonPresent = (target, key) => {
|
|
warn(
|
|
`Property or method "${key}" is not defined on the instance but ` +
|
|
'referenced during render. Make sure that this property is reactive, ' +
|
|
'either in the data option, or for class-based components, by ' +
|
|
'initializing the property. ' +
|
|
'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
|
|
target
|
|
);
|
|
};
|
|
|
|
const warnReservedPrefix = (target, key) => {
|
|
warn(
|
|
`Property "${key}" must be accessed with "$data.${key}" because ` +
|
|
'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
|
|
'prevent conflicts with Vue internals. ' +
|
|
'See: https://vuejs.org/v2/api/#data',
|
|
target
|
|
);
|
|
};
|
|
|
|
const hasProxy =
|
|
typeof Proxy !== 'undefined' && isNative(Proxy);
|
|
|
|
if (hasProxy) {
|
|
const isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
|
|
config.keyCodes = new Proxy(config.keyCodes, {
|
|
set (target, key, value) {
|
|
if (isBuiltInModifier(key)) {
|
|
warn(`Avoid overwriting built-in modifier in config.keyCodes: .${key}`);
|
|
return false
|
|
} else {
|
|
target[key] = value;
|
|
return true
|
|
}
|
|
}
|
|
});
|
|
}
|
|
|
|
const hasHandler = {
|
|
has (target, key) {
|
|
const has = key in target;
|
|
const isAllowed = allowedGlobals(key) ||
|
|
(typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));
|
|
if (!has && !isAllowed) {
|
|
if (key in target.$data) warnReservedPrefix(target, key);
|
|
else warnNonPresent(target, key);
|
|
}
|
|
return has || !isAllowed
|
|
}
|
|
};
|
|
|
|
const getHandler = {
|
|
get (target, key) {
|
|
if (typeof key === 'string' && !(key in target)) {
|
|
if (key in target.$data) warnReservedPrefix(target, key);
|
|
else warnNonPresent(target, key);
|
|
}
|
|
return target[key]
|
|
}
|
|
};
|
|
|
|
initProxy = function initProxy (vm) {
|
|
if (hasProxy) {
|
|
// determine which proxy handler to use
|
|
const options = vm.$options;
|
|
const handlers = options.render && options.render._withStripped
|
|
? getHandler
|
|
: hasHandler;
|
|
vm._renderProxy = new Proxy(vm, handlers);
|
|
} else {
|
|
vm._renderProxy = vm;
|
|
}
|
|
};
|
|
}
|
|
|
|
/* */
|
|
|
|
const seenObjects = new _Set();
|
|
|
|
/**
|
|
* Recursively traverse an object to evoke all converted
|
|
* getters, so that every nested property inside the object
|
|
* is collected as a "deep" dependency.
|
|
*/
|
|
function traverse (val) {
|
|
_traverse(val, seenObjects);
|
|
seenObjects.clear();
|
|
}
|
|
|
|
function _traverse (val, seen) {
|
|
let i, keys;
|
|
const isA = Array.isArray(val);
|
|
if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
|
|
return
|
|
}
|
|
if (val.__ob__) {
|
|
const depId = val.__ob__.dep.id;
|
|
if (seen.has(depId)) {
|
|
return
|
|
}
|
|
seen.add(depId);
|
|
}
|
|
if (isA) {
|
|
i = val.length;
|
|
while (i--) _traverse(val[i], seen);
|
|
} else {
|
|
keys = Object.keys(val);
|
|
i = keys.length;
|
|
while (i--) _traverse(val[keys[i]], seen);
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
const normalizeEvent = cached((name) => {
|
|
const passive = name.charAt(0) === '&';
|
|
name = passive ? name.slice(1) : name;
|
|
const once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first
|
|
name = once$$1 ? name.slice(1) : name;
|
|
const capture = name.charAt(0) === '!';
|
|
name = capture ? name.slice(1) : name;
|
|
return {
|
|
name,
|
|
once: once$$1,
|
|
capture,
|
|
passive
|
|
}
|
|
});
|
|
|
|
function createFnInvoker (fns, vm) {
|
|
function invoker () {
|
|
const fns = invoker.fns;
|
|
if (Array.isArray(fns)) {
|
|
const cloned = fns.slice();
|
|
for (let i = 0; i < cloned.length; i++) {
|
|
invokeWithErrorHandling(cloned[i], null, arguments, vm, `v-on handler`);
|
|
}
|
|
} else {
|
|
// return handler return value for single handlers
|
|
return invokeWithErrorHandling(fns, null, arguments, vm, `v-on handler`)
|
|
}
|
|
}
|
|
invoker.fns = fns;
|
|
return invoker
|
|
}
|
|
|
|
function updateListeners (
|
|
on,
|
|
oldOn,
|
|
add,
|
|
remove$$1,
|
|
createOnceHandler,
|
|
vm
|
|
) {
|
|
let name, def$$1, cur, old, event;
|
|
for (name in on) {
|
|
def$$1 = cur = on[name];
|
|
old = oldOn[name];
|
|
event = normalizeEvent(name);
|
|
if (isUndef(cur)) {
|
|
warn(
|
|
`Invalid handler for event "${event.name}": got ` + String(cur),
|
|
vm
|
|
);
|
|
} else if (isUndef(old)) {
|
|
if (isUndef(cur.fns)) {
|
|
cur = on[name] = createFnInvoker(cur, vm);
|
|
}
|
|
if (isTrue(event.once)) {
|
|
cur = on[name] = createOnceHandler(event.name, cur, event.capture);
|
|
}
|
|
add(event.name, cur, event.capture, event.passive, event.params);
|
|
} else if (cur !== old) {
|
|
old.fns = cur;
|
|
on[name] = old;
|
|
}
|
|
}
|
|
for (name in oldOn) {
|
|
if (isUndef(on[name])) {
|
|
event = normalizeEvent(name);
|
|
remove$$1(event.name, oldOn[name], event.capture);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
function mergeVNodeHook (def, hookKey, hook) {
|
|
if (def instanceof VNode) {
|
|
def = def.data.hook || (def.data.hook = {});
|
|
}
|
|
let invoker;
|
|
const oldHook = def[hookKey];
|
|
|
|
function wrappedHook () {
|
|
hook.apply(this, arguments);
|
|
// important: remove merged hook to ensure it's called only once
|
|
// and prevent memory leak
|
|
remove(invoker.fns, wrappedHook);
|
|
}
|
|
|
|
if (isUndef(oldHook)) {
|
|
// no existing hook
|
|
invoker = createFnInvoker([wrappedHook]);
|
|
} else {
|
|
/* istanbul ignore if */
|
|
if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {
|
|
// already a merged invoker
|
|
invoker = oldHook;
|
|
invoker.fns.push(wrappedHook);
|
|
} else {
|
|
// existing plain hook
|
|
invoker = createFnInvoker([oldHook, wrappedHook]);
|
|
}
|
|
}
|
|
|
|
invoker.merged = true;
|
|
def[hookKey] = invoker;
|
|
}
|
|
|
|
/* */
|
|
|
|
function extractPropsFromVNodeData (
|
|
data,
|
|
Ctor,
|
|
tag
|
|
) {
|
|
// we are only extracting raw values here.
|
|
// validation and default values are handled in the child
|
|
// component itself.
|
|
const propOptions = Ctor.options.props;
|
|
if (isUndef(propOptions)) {
|
|
return
|
|
}
|
|
const res = {};
|
|
const { attrs, props } = data;
|
|
if (isDef(attrs) || isDef(props)) {
|
|
for (const key in propOptions) {
|
|
const altKey = hyphenate(key);
|
|
{
|
|
const keyInLowerCase = key.toLowerCase();
|
|
if (
|
|
key !== keyInLowerCase &&
|
|
attrs && hasOwn(attrs, keyInLowerCase)
|
|
) {
|
|
tip(
|
|
`Prop "${keyInLowerCase}" is passed to component ` +
|
|
`${formatComponentName(tag || Ctor)}, but the declared prop name is` +
|
|
` "${key}". ` +
|
|
`Note that HTML attributes are case-insensitive and camelCased ` +
|
|
`props need to use their kebab-case equivalents when using in-DOM ` +
|
|
`templates. You should probably use "${altKey}" instead of "${key}".`
|
|
);
|
|
}
|
|
}
|
|
checkProp(res, props, key, altKey, true) ||
|
|
checkProp(res, attrs, key, altKey, false);
|
|
}
|
|
}
|
|
return res
|
|
}
|
|
|
|
function checkProp (
|
|
res,
|
|
hash,
|
|
key,
|
|
altKey,
|
|
preserve
|
|
) {
|
|
if (isDef(hash)) {
|
|
if (hasOwn(hash, key)) {
|
|
res[key] = hash[key];
|
|
if (!preserve) {
|
|
delete hash[key];
|
|
}
|
|
return true
|
|
} else if (hasOwn(hash, altKey)) {
|
|
res[key] = hash[altKey];
|
|
if (!preserve) {
|
|
delete hash[altKey];
|
|
}
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
/* */
|
|
|
|
// The template compiler attempts to minimize the need for normalization by
|
|
// statically analyzing the template at compile time.
|
|
//
|
|
// For plain HTML markup, normalization can be completely skipped because the
|
|
// generated render function is guaranteed to return Array<VNode>. There are
|
|
// two cases where extra normalization is needed:
|
|
|
|
// 1. When the children contains components - because a functional component
|
|
// may return an Array instead of a single root. In this case, just a simple
|
|
// normalization is needed - if any child is an Array, we flatten the whole
|
|
// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
|
|
// because functional components already normalize their own children.
|
|
function simpleNormalizeChildren (children) {
|
|
for (let i = 0; i < children.length; i++) {
|
|
if (Array.isArray(children[i])) {
|
|
return Array.prototype.concat.apply([], children)
|
|
}
|
|
}
|
|
return children
|
|
}
|
|
|
|
// 2. When the children contains constructs that always generated nested Arrays,
|
|
// e.g. <template>, <slot>, v-for, or when the children is provided by user
|
|
// with hand-written render functions / JSX. In such cases a full normalization
|
|
// is needed to cater to all possible types of children values.
|
|
function normalizeChildren (children) {
|
|
return isPrimitive(children)
|
|
? [createTextVNode(children)]
|
|
: Array.isArray(children)
|
|
? normalizeArrayChildren(children)
|
|
: undefined
|
|
}
|
|
|
|
function isTextNode (node) {
|
|
return isDef(node) && isDef(node.text) && isFalse(node.isComment)
|
|
}
|
|
|
|
function normalizeArrayChildren (children, nestedIndex) {
|
|
const res = [];
|
|
let i, c, lastIndex, last;
|
|
for (i = 0; i < children.length; i++) {
|
|
c = children[i];
|
|
if (isUndef(c) || typeof c === 'boolean') continue
|
|
lastIndex = res.length - 1;
|
|
last = res[lastIndex];
|
|
// nested
|
|
if (Array.isArray(c)) {
|
|
if (c.length > 0) {
|
|
c = normalizeArrayChildren(c, `${nestedIndex || ''}_${i}`);
|
|
// merge adjacent text nodes
|
|
if (isTextNode(c[0]) && isTextNode(last)) {
|
|
res[lastIndex] = createTextVNode(last.text + (c[0]).text);
|
|
c.shift();
|
|
}
|
|
res.push.apply(res, c);
|
|
}
|
|
} else if (isPrimitive(c)) {
|
|
if (isTextNode(last)) {
|
|
// merge adjacent text nodes
|
|
// this is necessary for SSR hydration because text nodes are
|
|
// essentially merged when rendered to HTML strings
|
|
res[lastIndex] = createTextVNode(last.text + c);
|
|
} else if (c !== '') {
|
|
// convert primitive to vnode
|
|
res.push(createTextVNode(c));
|
|
}
|
|
} else {
|
|
if (isTextNode(c) && isTextNode(last)) {
|
|
// merge adjacent text nodes
|
|
res[lastIndex] = createTextVNode(last.text + c.text);
|
|
} else {
|
|
// default key for nested array children (likely generated by v-for)
|
|
if (isTrue(children._isVList) &&
|
|
isDef(c.tag) &&
|
|
isUndef(c.key) &&
|
|
isDef(nestedIndex)) {
|
|
c.key = `__vlist${nestedIndex}_${i}__`;
|
|
}
|
|
res.push(c);
|
|
}
|
|
}
|
|
}
|
|
return res
|
|
}
|
|
|
|
/* */
|
|
|
|
function initProvide (vm) {
|
|
const provide = vm.$options.provide;
|
|
if (provide) {
|
|
vm._provided = typeof provide === 'function'
|
|
? provide.call(vm)
|
|
: provide;
|
|
}
|
|
}
|
|
|
|
function initInjections (vm) {
|
|
const result = resolveInject(vm.$options.inject, vm);
|
|
if (result) {
|
|
toggleObserving(false);
|
|
Object.keys(result).forEach(key => {
|
|
/* istanbul ignore else */
|
|
{
|
|
defineReactive$$1(vm, key, result[key], () => {
|
|
warn(
|
|
`Avoid mutating an injected value directly since the changes will be ` +
|
|
`overwritten whenever the provided component re-renders. ` +
|
|
`injection being mutated: "${key}"`,
|
|
vm
|
|
);
|
|
});
|
|
}
|
|
});
|
|
toggleObserving(true);
|
|
}
|
|
}
|
|
|
|
function resolveInject (inject, vm) {
|
|
if (inject) {
|
|
// inject is :any because flow is not smart enough to figure out cached
|
|
const result = Object.create(null);
|
|
const keys = hasSymbol
|
|
? Reflect.ownKeys(inject)
|
|
: Object.keys(inject);
|
|
|
|
for (let i = 0; i < keys.length; i++) {
|
|
const key = keys[i];
|
|
// #6574 in case the inject object is observed...
|
|
if (key === '__ob__') continue
|
|
const provideKey = inject[key].from;
|
|
let source = vm;
|
|
while (source) {
|
|
if (source._provided && hasOwn(source._provided, provideKey)) {
|
|
result[key] = source._provided[provideKey];
|
|
break
|
|
}
|
|
source = source.$parent;
|
|
}
|
|
if (!source) {
|
|
if ('default' in inject[key]) {
|
|
const provideDefault = inject[key].default;
|
|
result[key] = typeof provideDefault === 'function'
|
|
? provideDefault.call(vm)
|
|
: provideDefault;
|
|
} else {
|
|
warn(`Injection "${key}" not found`, vm);
|
|
}
|
|
}
|
|
}
|
|
return result
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
|
|
|
|
/**
|
|
* Runtime helper for resolving raw children VNodes into a slot object.
|
|
*/
|
|
function resolveSlots (
|
|
children,
|
|
context
|
|
) {
|
|
if (!children || !children.length) {
|
|
return {}
|
|
}
|
|
const slots = {};
|
|
for (let i = 0, l = children.length; i < l; i++) {
|
|
const child = children[i];
|
|
const data = child.data;
|
|
// remove slot attribute if the node is resolved as a Vue slot node
|
|
if (data && data.attrs && data.attrs.slot) {
|
|
delete data.attrs.slot;
|
|
}
|
|
// named slots should only be respected if the vnode was rendered in the
|
|
// same context.
|
|
if ((child.context === context || child.fnContext === context) &&
|
|
data && data.slot != null
|
|
) {
|
|
const name = data.slot;
|
|
const slot = (slots[name] || (slots[name] = []));
|
|
if (child.tag === 'template') {
|
|
slot.push.apply(slot, child.children || []);
|
|
} else {
|
|
slot.push(child);
|
|
}
|
|
} else {
|
|
(slots.default || (slots.default = [])).push(child);
|
|
}
|
|
}
|
|
// ignore slots that contains only whitespace
|
|
for (const name in slots) {
|
|
if (slots[name].every(isWhitespace)) {
|
|
delete slots[name];
|
|
}
|
|
}
|
|
return slots
|
|
}
|
|
|
|
function isWhitespace (node) {
|
|
return (node.isComment && !node.asyncFactory) || node.text === ' '
|
|
}
|
|
|
|
/* */
|
|
|
|
function normalizeScopedSlots (
|
|
slots,
|
|
normalSlots,
|
|
prevSlots
|
|
) {
|
|
let res;
|
|
const hasNormalSlots = Object.keys(normalSlots).length > 0;
|
|
const isStable = slots ? !!slots.$stable : !hasNormalSlots;
|
|
const key = slots && slots.$key;
|
|
if (!slots) {
|
|
res = {};
|
|
} else if (slots._normalized) {
|
|
// fast path 1: child component re-render only, parent did not change
|
|
return slots._normalized
|
|
} else if (
|
|
isStable &&
|
|
prevSlots &&
|
|
prevSlots !== emptyObject &&
|
|
key === prevSlots.$key &&
|
|
!hasNormalSlots &&
|
|
!prevSlots.$hasNormal
|
|
) {
|
|
// fast path 2: stable scoped slots w/ no normal slots to proxy,
|
|
// only need to normalize once
|
|
return prevSlots
|
|
} else {
|
|
res = {};
|
|
for (const key in slots) {
|
|
if (slots[key] && key[0] !== '$') {
|
|
res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
|
|
}
|
|
}
|
|
}
|
|
// expose normal slots on scopedSlots
|
|
for (const key in normalSlots) {
|
|
if (!(key in res)) {
|
|
res[key] = proxyNormalSlot(normalSlots, key);
|
|
}
|
|
}
|
|
// avoriaz seems to mock a non-extensible $scopedSlots object
|
|
// and when that is passed down this would cause an error
|
|
if (slots && Object.isExtensible(slots)) {
|
|
(slots)._normalized = res;
|
|
}
|
|
def(res, '$stable', isStable);
|
|
def(res, '$key', key);
|
|
def(res, '$hasNormal', hasNormalSlots);
|
|
return res
|
|
}
|
|
|
|
function normalizeScopedSlot(normalSlots, key, fn) {
|
|
const normalized = function () {
|
|
let res = arguments.length ? fn.apply(null, arguments) : fn({});
|
|
res = res && typeof res === 'object' && !Array.isArray(res)
|
|
? [res] // single vnode
|
|
: normalizeChildren(res);
|
|
return res && (
|
|
res.length === 0 ||
|
|
(res.length === 1 && res[0].isComment) // #9658
|
|
) ? undefined
|
|
: res
|
|
};
|
|
// this is a slot using the new v-slot syntax without scope. although it is
|
|
// compiled as a scoped slot, render fn users would expect it to be present
|
|
// on this.$slots because the usage is semantically a normal slot.
|
|
if (fn.proxy) {
|
|
Object.defineProperty(normalSlots, key, {
|
|
get: normalized,
|
|
enumerable: true,
|
|
configurable: true
|
|
});
|
|
}
|
|
return normalized
|
|
}
|
|
|
|
function proxyNormalSlot(slots, key) {
|
|
return () => slots[key]
|
|
}
|
|
|
|
/* */
|
|
|
|
/**
|
|
* Runtime helper for rendering v-for lists.
|
|
*/
|
|
function renderList (
|
|
val,
|
|
render
|
|
) {
|
|
let ret, i, l, keys, key;
|
|
if (Array.isArray(val) || typeof val === 'string') {
|
|
ret = new Array(val.length);
|
|
for (i = 0, l = val.length; i < l; i++) {
|
|
ret[i] = render(val[i], i);
|
|
}
|
|
} else if (typeof val === 'number') {
|
|
ret = new Array(val);
|
|
for (i = 0; i < val; i++) {
|
|
ret[i] = render(i + 1, i);
|
|
}
|
|
} else if (isObject(val)) {
|
|
if (hasSymbol && val[Symbol.iterator]) {
|
|
ret = [];
|
|
const iterator = val[Symbol.iterator]();
|
|
let result = iterator.next();
|
|
while (!result.done) {
|
|
ret.push(render(result.value, ret.length));
|
|
result = iterator.next();
|
|
}
|
|
} else {
|
|
keys = Object.keys(val);
|
|
ret = new Array(keys.length);
|
|
for (i = 0, l = keys.length; i < l; i++) {
|
|
key = keys[i];
|
|
ret[i] = render(val[key], key, i);
|
|
}
|
|
}
|
|
}
|
|
if (!isDef(ret)) {
|
|
ret = [];
|
|
}
|
|
(ret)._isVList = true;
|
|
return ret
|
|
}
|
|
|
|
/* */
|
|
|
|
/**
|
|
* Runtime helper for rendering <slot>
|
|
*/
|
|
function renderSlot (
|
|
name,
|
|
fallback,
|
|
props,
|
|
bindObject
|
|
) {
|
|
const scopedSlotFn = this.$scopedSlots[name];
|
|
let nodes;
|
|
if (scopedSlotFn) { // scoped slot
|
|
props = props || {};
|
|
if (bindObject) {
|
|
if (!isObject(bindObject)) {
|
|
warn(
|
|
'slot v-bind without argument expects an Object',
|
|
this
|
|
);
|
|
}
|
|
props = extend(extend({}, bindObject), props);
|
|
}
|
|
nodes = scopedSlotFn(props) || fallback;
|
|
} else {
|
|
nodes = this.$slots[name] || fallback;
|
|
}
|
|
|
|
const target = props && props.slot;
|
|
if (target) {
|
|
return this.$createElement('template', { slot: target }, nodes)
|
|
} else {
|
|
return nodes
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
/**
|
|
* Runtime helper for resolving filters
|
|
*/
|
|
function resolveFilter (id) {
|
|
return resolveAsset(this.$options, 'filters', id, true) || identity
|
|
}
|
|
|
|
/* */
|
|
|
|
function isKeyNotMatch (expect, actual) {
|
|
if (Array.isArray(expect)) {
|
|
return expect.indexOf(actual) === -1
|
|
} else {
|
|
return expect !== actual
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Runtime helper for checking keyCodes from config.
|
|
* exposed as Vue.prototype._k
|
|
* passing in eventKeyName as last argument separately for backwards compat
|
|
*/
|
|
function checkKeyCodes (
|
|
eventKeyCode,
|
|
key,
|
|
builtInKeyCode,
|
|
eventKeyName,
|
|
builtInKeyName
|
|
) {
|
|
const mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
|
|
if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
|
|
return isKeyNotMatch(builtInKeyName, eventKeyName)
|
|
} else if (mappedKeyCode) {
|
|
return isKeyNotMatch(mappedKeyCode, eventKeyCode)
|
|
} else if (eventKeyName) {
|
|
return hyphenate(eventKeyName) !== key
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
/**
|
|
* Runtime helper for merging v-bind="object" into a VNode's data.
|
|
*/
|
|
function bindObjectProps (
|
|
data,
|
|
tag,
|
|
value,
|
|
asProp,
|
|
isSync
|
|
) {
|
|
if (value) {
|
|
if (!isObject(value)) {
|
|
warn(
|
|
'v-bind without argument expects an Object or Array value',
|
|
this
|
|
);
|
|
} else {
|
|
if (Array.isArray(value)) {
|
|
value = toObject(value);
|
|
}
|
|
let hash;
|
|
for (const key in value) {
|
|
if (
|
|
key === 'class' ||
|
|
key === 'style' ||
|
|
isReservedAttribute(key)
|
|
) {
|
|
hash = data;
|
|
} else {
|
|
const type = data.attrs && data.attrs.type;
|
|
hash = asProp || config.mustUseProp(tag, type, key)
|
|
? data.domProps || (data.domProps = {})
|
|
: data.attrs || (data.attrs = {});
|
|
}
|
|
const camelizedKey = camelize(key);
|
|
const hyphenatedKey = hyphenate(key);
|
|
if (!(camelizedKey in hash) && !(hyphenatedKey in hash)) {
|
|
hash[key] = value[key];
|
|
|
|
if (isSync) {
|
|
const on = data.on || (data.on = {});
|
|
on[`update:${key}`] = function ($event) {
|
|
value[key] = $event;
|
|
};
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return data
|
|
}
|
|
|
|
/* */
|
|
|
|
/**
|
|
* Runtime helper for rendering static trees.
|
|
*/
|
|
function renderStatic (
|
|
index,
|
|
isInFor
|
|
) {
|
|
const cached = this._staticTrees || (this._staticTrees = []);
|
|
let tree = cached[index];
|
|
// if has already-rendered static tree and not inside v-for,
|
|
// we can reuse the same tree.
|
|
if (tree && !isInFor) {
|
|
return tree
|
|
}
|
|
// otherwise, render a fresh tree.
|
|
tree = cached[index] = this.$options.staticRenderFns[index].call(
|
|
this._renderProxy,
|
|
null,
|
|
this // for render fns generated for functional component templates
|
|
);
|
|
markStatic(tree, `__static__${index}`, false);
|
|
return tree
|
|
}
|
|
|
|
/**
|
|
* Runtime helper for v-once.
|
|
* Effectively it means marking the node as static with a unique key.
|
|
*/
|
|
function markOnce (
|
|
tree,
|
|
index,
|
|
key
|
|
) {
|
|
markStatic(tree, `__once__${index}${key ? `_${key}` : ``}`, true);
|
|
return tree
|
|
}
|
|
|
|
function markStatic (
|
|
tree,
|
|
key,
|
|
isOnce
|
|
) {
|
|
if (Array.isArray(tree)) {
|
|
for (let i = 0; i < tree.length; i++) {
|
|
if (tree[i] && typeof tree[i] !== 'string') {
|
|
markStaticNode(tree[i], `${key}_${i}`, isOnce);
|
|
}
|
|
}
|
|
} else {
|
|
markStaticNode(tree, key, isOnce);
|
|
}
|
|
}
|
|
|
|
function markStaticNode (node, key, isOnce) {
|
|
node.isStatic = true;
|
|
node.key = key;
|
|
node.isOnce = isOnce;
|
|
}
|
|
|
|
/* */
|
|
|
|
function bindObjectListeners (data, value) {
|
|
if (value) {
|
|
if (!isPlainObject(value)) {
|
|
warn(
|
|
'v-on without argument expects an Object value',
|
|
this
|
|
);
|
|
} else {
|
|
const on = data.on = data.on ? extend({}, data.on) : {};
|
|
for (const key in value) {
|
|
const existing = on[key];
|
|
const ours = value[key];
|
|
on[key] = existing ? [].concat(existing, ours) : ours;
|
|
}
|
|
}
|
|
}
|
|
return data
|
|
}
|
|
|
|
/* */
|
|
|
|
function resolveScopedSlots (
|
|
fns, // see flow/vnode
|
|
res,
|
|
// the following are added in 2.6
|
|
hasDynamicKeys,
|
|
contentHashKey
|
|
) {
|
|
res = res || { $stable: !hasDynamicKeys };
|
|
for (let i = 0; i < fns.length; i++) {
|
|
const slot = fns[i];
|
|
if (Array.isArray(slot)) {
|
|
resolveScopedSlots(slot, res, hasDynamicKeys);
|
|
} else if (slot) {
|
|
// marker for reverse proxying v-slot without scope on this.$slots
|
|
if (slot.proxy) {
|
|
slot.fn.proxy = true;
|
|
}
|
|
res[slot.key] = slot.fn;
|
|
}
|
|
}
|
|
if (contentHashKey) {
|
|
(res).$key = contentHashKey;
|
|
}
|
|
return res
|
|
}
|
|
|
|
/* */
|
|
|
|
function bindDynamicKeys (baseObj, values) {
|
|
for (let i = 0; i < values.length; i += 2) {
|
|
const key = values[i];
|
|
if (typeof key === 'string' && key) {
|
|
baseObj[values[i]] = values[i + 1];
|
|
} else if (key !== '' && key !== null) {
|
|
// null is a special value for explicitly removing a binding
|
|
warn(
|
|
`Invalid value for dynamic directive argument (expected string or null): ${key}`,
|
|
this
|
|
);
|
|
}
|
|
}
|
|
return baseObj
|
|
}
|
|
|
|
// helper to dynamically append modifier runtime markers to event names.
|
|
// ensure only append when value is already string, otherwise it will be cast
|
|
// to string and cause the type check to miss.
|
|
function prependModifier (value, symbol) {
|
|
return typeof value === 'string' ? symbol + value : value
|
|
}
|
|
|
|
/* */
|
|
|
|
function installRenderHelpers (target) {
|
|
target._o = markOnce;
|
|
target._n = toNumber;
|
|
target._s = toString;
|
|
target._l = renderList;
|
|
target._t = renderSlot;
|
|
target._q = looseEqual;
|
|
target._i = looseIndexOf;
|
|
target._m = renderStatic;
|
|
target._f = resolveFilter;
|
|
target._k = checkKeyCodes;
|
|
target._b = bindObjectProps;
|
|
target._v = createTextVNode;
|
|
target._e = createEmptyVNode;
|
|
target._u = resolveScopedSlots;
|
|
target._g = bindObjectListeners;
|
|
target._d = bindDynamicKeys;
|
|
target._p = prependModifier;
|
|
}
|
|
|
|
/* */
|
|
|
|
function FunctionalRenderContext (
|
|
data,
|
|
props,
|
|
children,
|
|
parent,
|
|
Ctor
|
|
) {
|
|
const options = Ctor.options;
|
|
// ensure the createElement function in functional components
|
|
// gets a unique context - this is necessary for correct named slot check
|
|
let contextVm;
|
|
if (hasOwn(parent, '_uid')) {
|
|
contextVm = Object.create(parent);
|
|
// $flow-disable-line
|
|
contextVm._original = parent;
|
|
} else {
|
|
// the context vm passed in is a functional context as well.
|
|
// in this case we want to make sure we are able to get a hold to the
|
|
// real context instance.
|
|
contextVm = parent;
|
|
// $flow-disable-line
|
|
parent = parent._original;
|
|
}
|
|
const isCompiled = isTrue(options._compiled);
|
|
const needNormalization = !isCompiled;
|
|
|
|
this.data = data;
|
|
this.props = props;
|
|
this.children = children;
|
|
this.parent = parent;
|
|
this.listeners = data.on || emptyObject;
|
|
this.injections = resolveInject(options.inject, parent);
|
|
this.slots = () => {
|
|
if (!this.$slots) {
|
|
normalizeScopedSlots(
|
|
data.scopedSlots,
|
|
this.$slots = resolveSlots(children, parent)
|
|
);
|
|
}
|
|
return this.$slots
|
|
};
|
|
|
|
Object.defineProperty(this, 'scopedSlots', ({
|
|
enumerable: true,
|
|
get () {
|
|
return normalizeScopedSlots(data.scopedSlots, this.slots())
|
|
}
|
|
}));
|
|
|
|
// support for compiled functional template
|
|
if (isCompiled) {
|
|
// exposing $options for renderStatic()
|
|
this.$options = options;
|
|
// pre-resolve slots for renderSlot()
|
|
this.$slots = this.slots();
|
|
this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);
|
|
}
|
|
|
|
if (options._scopeId) {
|
|
this._c = (a, b, c, d) => {
|
|
const vnode = createElement(contextVm, a, b, c, d, needNormalization);
|
|
if (vnode && !Array.isArray(vnode)) {
|
|
vnode.fnScopeId = options._scopeId;
|
|
vnode.fnContext = parent;
|
|
}
|
|
return vnode
|
|
};
|
|
} else {
|
|
this._c = (a, b, c, d) => createElement(contextVm, a, b, c, d, needNormalization);
|
|
}
|
|
}
|
|
|
|
installRenderHelpers(FunctionalRenderContext.prototype);
|
|
|
|
function createFunctionalComponent (
|
|
Ctor,
|
|
propsData,
|
|
data,
|
|
contextVm,
|
|
children
|
|
) {
|
|
const options = Ctor.options;
|
|
const props = {};
|
|
const propOptions = options.props;
|
|
if (isDef(propOptions)) {
|
|
for (const key in propOptions) {
|
|
props[key] = validateProp(key, propOptions, propsData || emptyObject);
|
|
}
|
|
} else {
|
|
if (isDef(data.attrs)) mergeProps(props, data.attrs);
|
|
if (isDef(data.props)) mergeProps(props, data.props);
|
|
}
|
|
|
|
const renderContext = new FunctionalRenderContext(
|
|
data,
|
|
props,
|
|
children,
|
|
contextVm,
|
|
Ctor
|
|
);
|
|
|
|
const vnode = options.render.call(null, renderContext._c, renderContext);
|
|
|
|
if (vnode instanceof VNode) {
|
|
return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
|
|
} else if (Array.isArray(vnode)) {
|
|
const vnodes = normalizeChildren(vnode) || [];
|
|
const res = new Array(vnodes.length);
|
|
for (let i = 0; i < vnodes.length; i++) {
|
|
res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
|
|
}
|
|
return res
|
|
}
|
|
}
|
|
|
|
function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
|
|
// #7817 clone node before setting fnContext, otherwise if the node is reused
|
|
// (e.g. it was from a cached normal slot) the fnContext causes named slots
|
|
// that should not be matched to match.
|
|
const clone = cloneVNode(vnode);
|
|
clone.fnContext = contextVm;
|
|
clone.fnOptions = options;
|
|
{
|
|
(clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
|
|
}
|
|
if (data.slot) {
|
|
(clone.data || (clone.data = {})).slot = data.slot;
|
|
}
|
|
return clone
|
|
}
|
|
|
|
function mergeProps (to, from) {
|
|
for (const key in from) {
|
|
to[camelize(key)] = from[key];
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
/* */
|
|
|
|
/* */
|
|
|
|
/* */
|
|
|
|
// inline hooks to be invoked on component VNodes during patch
|
|
const componentVNodeHooks = {
|
|
init (vnode, hydrating) {
|
|
if (
|
|
vnode.componentInstance &&
|
|
!vnode.componentInstance._isDestroyed &&
|
|
vnode.data.keepAlive
|
|
) {
|
|
// kept-alive components, treat as a patch
|
|
const mountedNode = vnode; // work around flow
|
|
componentVNodeHooks.prepatch(mountedNode, mountedNode);
|
|
} else {
|
|
const child = vnode.componentInstance = createComponentInstanceForVnode(
|
|
vnode,
|
|
activeInstance
|
|
);
|
|
child.$mount(hydrating ? vnode.elm : undefined, hydrating);
|
|
}
|
|
},
|
|
|
|
prepatch (oldVnode, vnode) {
|
|
const options = vnode.componentOptions;
|
|
const child = vnode.componentInstance = oldVnode.componentInstance;
|
|
updateChildComponent(
|
|
child,
|
|
options.propsData, // updated props
|
|
options.listeners, // updated listeners
|
|
vnode, // new parent vnode
|
|
options.children // new children
|
|
);
|
|
},
|
|
|
|
insert (vnode) {
|
|
const { context, componentInstance } = vnode;
|
|
if (!componentInstance._isMounted) {
|
|
componentInstance._isMounted = true;
|
|
callHook(componentInstance, 'mounted');
|
|
}
|
|
if (vnode.data.keepAlive) {
|
|
if (context._isMounted) {
|
|
// vue-router#1212
|
|
// During updates, a kept-alive component's child components may
|
|
// change, so directly walking the tree here may call activated hooks
|
|
// on incorrect children. Instead we push them into a queue which will
|
|
// be processed after the whole patch process ended.
|
|
queueActivatedComponent(componentInstance);
|
|
} else {
|
|
activateChildComponent(componentInstance, true /* direct */);
|
|
}
|
|
}
|
|
},
|
|
|
|
destroy (vnode) {
|
|
const { componentInstance } = vnode;
|
|
if (!componentInstance._isDestroyed) {
|
|
if (!vnode.data.keepAlive) {
|
|
componentInstance.$destroy();
|
|
} else {
|
|
deactivateChildComponent(componentInstance, true /* direct */);
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
const hooksToMerge = Object.keys(componentVNodeHooks);
|
|
|
|
function createComponent (
|
|
Ctor,
|
|
data,
|
|
context,
|
|
children,
|
|
tag
|
|
) {
|
|
if (isUndef(Ctor)) {
|
|
return
|
|
}
|
|
|
|
const baseCtor = context.$options._base;
|
|
|
|
// plain options object: turn it into a constructor
|
|
if (isObject(Ctor)) {
|
|
Ctor = baseCtor.extend(Ctor);
|
|
}
|
|
|
|
// if at this stage it's not a constructor or an async component factory,
|
|
// reject.
|
|
if (typeof Ctor !== 'function') {
|
|
{
|
|
warn(`Invalid Component definition: ${String(Ctor)}`, context);
|
|
}
|
|
return
|
|
}
|
|
|
|
// async component
|
|
let asyncFactory;
|
|
if (isUndef(Ctor.cid)) {
|
|
asyncFactory = Ctor;
|
|
Ctor = resolveAsyncComponent(asyncFactory, baseCtor);
|
|
if (Ctor === undefined) {
|
|
// return a placeholder node for async component, which is rendered
|
|
// as a comment node but preserves all the raw information for the node.
|
|
// the information will be used for async server-rendering and hydration.
|
|
return createAsyncPlaceholder(
|
|
asyncFactory,
|
|
data,
|
|
context,
|
|
children,
|
|
tag
|
|
)
|
|
}
|
|
}
|
|
|
|
data = data || {};
|
|
|
|
// resolve constructor options in case global mixins are applied after
|
|
// component constructor creation
|
|
resolveConstructorOptions(Ctor);
|
|
|
|
// transform component v-model data into props & events
|
|
if (isDef(data.model)) {
|
|
transformModel(Ctor.options, data);
|
|
}
|
|
|
|
// extract props
|
|
const propsData = extractPropsFromVNodeData(data, Ctor, tag);
|
|
|
|
// functional component
|
|
if (isTrue(Ctor.options.functional)) {
|
|
return createFunctionalComponent(Ctor, propsData, data, context, children)
|
|
}
|
|
|
|
// extract listeners, since these needs to be treated as
|
|
// child component listeners instead of DOM listeners
|
|
const listeners = data.on;
|
|
// replace with listeners with .native modifier
|
|
// so it gets processed during parent component patch.
|
|
data.on = data.nativeOn;
|
|
|
|
if (isTrue(Ctor.options.abstract)) {
|
|
// abstract components do not keep anything
|
|
// other than props & listeners & slot
|
|
|
|
// work around flow
|
|
const slot = data.slot;
|
|
data = {};
|
|
if (slot) {
|
|
data.slot = slot;
|
|
}
|
|
}
|
|
|
|
// install component management hooks onto the placeholder node
|
|
installComponentHooks(data);
|
|
|
|
// return a placeholder vnode
|
|
const name = Ctor.options.name || tag;
|
|
const vnode = new VNode(
|
|
`vue-component-${Ctor.cid}${name ? `-${name}` : ''}`,
|
|
data, undefined, undefined, undefined, context,
|
|
{ Ctor, propsData, listeners, tag, children },
|
|
asyncFactory
|
|
);
|
|
|
|
return vnode
|
|
}
|
|
|
|
function createComponentInstanceForVnode (
|
|
vnode, // we know it's MountedComponentVNode but flow doesn't
|
|
parent, // activeInstance in lifecycle state
|
|
) {
|
|
const options = {
|
|
_isComponent: true,
|
|
_parentVnode: vnode,
|
|
parent
|
|
};
|
|
// check inline-template render functions
|
|
const inlineTemplate = vnode.data.inlineTemplate;
|
|
if (isDef(inlineTemplate)) {
|
|
options.render = inlineTemplate.render;
|
|
options.staticRenderFns = inlineTemplate.staticRenderFns;
|
|
}
|
|
return new vnode.componentOptions.Ctor(options)
|
|
}
|
|
|
|
function installComponentHooks (data) {
|
|
const hooks = data.hook || (data.hook = {});
|
|
for (let i = 0; i < hooksToMerge.length; i++) {
|
|
const key = hooksToMerge[i];
|
|
const existing = hooks[key];
|
|
const toMerge = componentVNodeHooks[key];
|
|
if (existing !== toMerge && !(existing && existing._merged)) {
|
|
hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
|
|
}
|
|
}
|
|
}
|
|
|
|
function mergeHook$1 (f1, f2) {
|
|
const merged = (a, b) => {
|
|
// flow complains about extra args which is why we use any
|
|
f1(a, b);
|
|
f2(a, b);
|
|
};
|
|
merged._merged = true;
|
|
return merged
|
|
}
|
|
|
|
// transform component v-model info (value and callback) into
|
|
// prop and event handler respectively.
|
|
function transformModel (options, data) {
|
|
const prop = (options.model && options.model.prop) || 'value';
|
|
const event = (options.model && options.model.event) || 'input'
|
|
;(data.attrs || (data.attrs = {}))[prop] = data.model.value;
|
|
const on = data.on || (data.on = {});
|
|
const existing = on[event];
|
|
const callback = data.model.callback;
|
|
if (isDef(existing)) {
|
|
if (
|
|
Array.isArray(existing)
|
|
? existing.indexOf(callback) === -1
|
|
: existing !== callback
|
|
) {
|
|
on[event] = [callback].concat(existing);
|
|
}
|
|
} else {
|
|
on[event] = callback;
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
const SIMPLE_NORMALIZE = 1;
|
|
const ALWAYS_NORMALIZE = 2;
|
|
|
|
// wrapper function for providing a more flexible interface
|
|
// without getting yelled at by flow
|
|
function createElement (
|
|
context,
|
|
tag,
|
|
data,
|
|
children,
|
|
normalizationType,
|
|
alwaysNormalize
|
|
) {
|
|
if (Array.isArray(data) || isPrimitive(data)) {
|
|
normalizationType = children;
|
|
children = data;
|
|
data = undefined;
|
|
}
|
|
if (isTrue(alwaysNormalize)) {
|
|
normalizationType = ALWAYS_NORMALIZE;
|
|
}
|
|
return _createElement(context, tag, data, children, normalizationType)
|
|
}
|
|
|
|
function _createElement (
|
|
context,
|
|
tag,
|
|
data,
|
|
children,
|
|
normalizationType
|
|
) {
|
|
if (isDef(data) && isDef((data).__ob__)) {
|
|
warn(
|
|
`Avoid using observed data object as vnode data: ${JSON.stringify(data)}\n` +
|
|
'Always create fresh vnode data objects in each render!',
|
|
context
|
|
);
|
|
return createEmptyVNode()
|
|
}
|
|
// object syntax in v-bind
|
|
if (isDef(data) && isDef(data.is)) {
|
|
tag = data.is;
|
|
}
|
|
if (!tag) {
|
|
// in case of component :is set to falsy value
|
|
return createEmptyVNode()
|
|
}
|
|
// warn against non-primitive key
|
|
if (isDef(data) && isDef(data.key) && !isPrimitive(data.key)
|
|
) {
|
|
{
|
|
warn(
|
|
'Avoid using non-primitive value as key, ' +
|
|
'use string/number value instead.',
|
|
context
|
|
);
|
|
}
|
|
}
|
|
// support single function children as default scoped slot
|
|
if (Array.isArray(children) &&
|
|
typeof children[0] === 'function'
|
|
) {
|
|
data = data || {};
|
|
data.scopedSlots = { default: children[0] };
|
|
children.length = 0;
|
|
}
|
|
if (normalizationType === ALWAYS_NORMALIZE) {
|
|
children = normalizeChildren(children);
|
|
} else if (normalizationType === SIMPLE_NORMALIZE) {
|
|
children = simpleNormalizeChildren(children);
|
|
}
|
|
let vnode, ns;
|
|
if (typeof tag === 'string') {
|
|
let Ctor;
|
|
ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
|
|
if (config.isReservedTag(tag)) {
|
|
// platform built-in elements
|
|
if (isDef(data) && isDef(data.nativeOn)) {
|
|
warn(
|
|
`The .native modifier for v-on is only valid on components but it was used on <${tag}>.`,
|
|
context
|
|
);
|
|
}
|
|
vnode = new VNode(
|
|
config.parsePlatformTagName(tag), data, children,
|
|
undefined, undefined, context
|
|
);
|
|
} else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
|
|
// component
|
|
vnode = createComponent(Ctor, data, context, children, tag);
|
|
} else {
|
|
// unknown or unlisted namespaced elements
|
|
// check at runtime because it may get assigned a namespace when its
|
|
// parent normalizes children
|
|
vnode = new VNode(
|
|
tag, data, children,
|
|
undefined, undefined, context
|
|
);
|
|
}
|
|
} else {
|
|
// direct component options / constructor
|
|
vnode = createComponent(tag, data, context, children);
|
|
}
|
|
if (Array.isArray(vnode)) {
|
|
return vnode
|
|
} else if (isDef(vnode)) {
|
|
if (isDef(ns)) applyNS(vnode, ns);
|
|
if (isDef(data)) registerDeepBindings(data);
|
|
return vnode
|
|
} else {
|
|
return createEmptyVNode()
|
|
}
|
|
}
|
|
|
|
function applyNS (vnode, ns, force) {
|
|
vnode.ns = ns;
|
|
if (vnode.tag === 'foreignObject') {
|
|
// use default namespace inside foreignObject
|
|
ns = undefined;
|
|
force = true;
|
|
}
|
|
if (isDef(vnode.children)) {
|
|
for (let i = 0, l = vnode.children.length; i < l; i++) {
|
|
const child = vnode.children[i];
|
|
if (isDef(child.tag) && (
|
|
isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
|
|
applyNS(child, ns, force);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// ref #5318
|
|
// necessary to ensure parent re-render when deep bindings like :style and
|
|
// :class are used on slot nodes
|
|
function registerDeepBindings (data) {
|
|
if (isObject(data.style)) {
|
|
traverse(data.style);
|
|
}
|
|
if (isObject(data.class)) {
|
|
traverse(data.class);
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
function initRender (vm) {
|
|
vm._vnode = null; // the root of the child tree
|
|
vm._staticTrees = null; // v-once cached trees
|
|
const options = vm.$options;
|
|
const parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
|
|
const renderContext = parentVnode && parentVnode.context;
|
|
vm.$slots = resolveSlots(options._renderChildren, renderContext);
|
|
vm.$scopedSlots = emptyObject;
|
|
// bind the createElement fn to this instance
|
|
// so that we get proper render context inside it.
|
|
// args order: tag, data, children, normalizationType, alwaysNormalize
|
|
// internal version is used by render functions compiled from templates
|
|
vm._c = (a, b, c, d) => createElement(vm, a, b, c, d, false);
|
|
// normalization is always applied for the public version, used in
|
|
// user-written render functions.
|
|
vm.$createElement = (a, b, c, d) => createElement(vm, a, b, c, d, true);
|
|
|
|
// $attrs & $listeners are exposed for easier HOC creation.
|
|
// they need to be reactive so that HOCs using them are always updated
|
|
const parentData = parentVnode && parentVnode.data;
|
|
|
|
/* istanbul ignore else */
|
|
{
|
|
defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, () => {
|
|
!isUpdatingChildComponent && warn(`$attrs is readonly.`, vm);
|
|
}, true);
|
|
defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, () => {
|
|
!isUpdatingChildComponent && warn(`$listeners is readonly.`, vm);
|
|
}, true);
|
|
}
|
|
}
|
|
|
|
let currentRenderingInstance = null;
|
|
|
|
function renderMixin (Vue) {
|
|
// install runtime convenience helpers
|
|
installRenderHelpers(Vue.prototype);
|
|
|
|
Vue.prototype.$nextTick = function (fn) {
|
|
return nextTick(fn, this)
|
|
};
|
|
|
|
Vue.prototype._render = function () {
|
|
const vm = this;
|
|
const { render, _parentVnode } = vm.$options;
|
|
|
|
if (_parentVnode) {
|
|
vm.$scopedSlots = normalizeScopedSlots(
|
|
_parentVnode.data.scopedSlots,
|
|
vm.$slots,
|
|
vm.$scopedSlots
|
|
);
|
|
}
|
|
|
|
// set parent vnode. this allows render functions to have access
|
|
// to the data on the placeholder node.
|
|
vm.$vnode = _parentVnode;
|
|
// render self
|
|
let vnode;
|
|
try {
|
|
// There's no need to maintain a stack because all render fns are called
|
|
// separately from one another. Nested component's render fns are called
|
|
// when parent component is patched.
|
|
currentRenderingInstance = vm;
|
|
vnode = render.call(vm._renderProxy, vm.$createElement);
|
|
} catch (e) {
|
|
handleError(e, vm, `render`);
|
|
// return error render result,
|
|
// or previous vnode to prevent render error causing blank component
|
|
/* istanbul ignore else */
|
|
if (vm.$options.renderError) {
|
|
try {
|
|
vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
|
|
} catch (e) {
|
|
handleError(e, vm, `renderError`);
|
|
vnode = vm._vnode;
|
|
}
|
|
} else {
|
|
vnode = vm._vnode;
|
|
}
|
|
} finally {
|
|
currentRenderingInstance = null;
|
|
}
|
|
// if the returned array contains only a single node, allow it
|
|
if (Array.isArray(vnode) && vnode.length === 1) {
|
|
vnode = vnode[0];
|
|
}
|
|
// return empty vnode in case the render function errored out
|
|
if (!(vnode instanceof VNode)) {
|
|
if (Array.isArray(vnode)) {
|
|
warn(
|
|
'Multiple root nodes returned from render function. Render function ' +
|
|
'should return a single root node.',
|
|
vm
|
|
);
|
|
}
|
|
vnode = createEmptyVNode();
|
|
}
|
|
// set parent
|
|
vnode.parent = _parentVnode;
|
|
return vnode
|
|
};
|
|
}
|
|
|
|
/* */
|
|
|
|
function ensureCtor (comp, base) {
|
|
if (
|
|
comp.__esModule ||
|
|
(hasSymbol && comp[Symbol.toStringTag] === 'Module')
|
|
) {
|
|
comp = comp.default;
|
|
}
|
|
return isObject(comp)
|
|
? base.extend(comp)
|
|
: comp
|
|
}
|
|
|
|
function createAsyncPlaceholder (
|
|
factory,
|
|
data,
|
|
context,
|
|
children,
|
|
tag
|
|
) {
|
|
const node = createEmptyVNode();
|
|
node.asyncFactory = factory;
|
|
node.asyncMeta = { data, context, children, tag };
|
|
return node
|
|
}
|
|
|
|
function resolveAsyncComponent (
|
|
factory,
|
|
baseCtor
|
|
) {
|
|
if (isTrue(factory.error) && isDef(factory.errorComp)) {
|
|
return factory.errorComp
|
|
}
|
|
|
|
if (isDef(factory.resolved)) {
|
|
return factory.resolved
|
|
}
|
|
|
|
const owner = currentRenderingInstance;
|
|
if (owner && isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
|
|
// already pending
|
|
factory.owners.push(owner);
|
|
}
|
|
|
|
if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
|
|
return factory.loadingComp
|
|
}
|
|
|
|
if (owner && !isDef(factory.owners)) {
|
|
const owners = factory.owners = [owner];
|
|
let sync = true;
|
|
let timerLoading = null;
|
|
let timerTimeout = null
|
|
|
|
;(owner).$on('hook:destroyed', () => remove(owners, owner));
|
|
|
|
const forceRender = (renderCompleted) => {
|
|
for (let i = 0, l = owners.length; i < l; i++) {
|
|
(owners[i]).$forceUpdate();
|
|
}
|
|
|
|
if (renderCompleted) {
|
|
owners.length = 0;
|
|
if (timerLoading !== null) {
|
|
clearTimeout(timerLoading);
|
|
timerLoading = null;
|
|
}
|
|
if (timerTimeout !== null) {
|
|
clearTimeout(timerTimeout);
|
|
timerTimeout = null;
|
|
}
|
|
}
|
|
};
|
|
|
|
const resolve = once((res) => {
|
|
// cache resolved
|
|
factory.resolved = ensureCtor(res, baseCtor);
|
|
// invoke callbacks only if this is not a synchronous resolve
|
|
// (async resolves are shimmed as synchronous during SSR)
|
|
if (!sync) {
|
|
forceRender(true);
|
|
} else {
|
|
owners.length = 0;
|
|
}
|
|
});
|
|
|
|
const reject = once(reason => {
|
|
warn(
|
|
`Failed to resolve async component: ${String(factory)}` +
|
|
(reason ? `\nReason: ${reason}` : '')
|
|
);
|
|
if (isDef(factory.errorComp)) {
|
|
factory.error = true;
|
|
forceRender(true);
|
|
}
|
|
});
|
|
|
|
const res = factory(resolve, reject);
|
|
|
|
if (isObject(res)) {
|
|
if (isPromise(res)) {
|
|
// () => Promise
|
|
if (isUndef(factory.resolved)) {
|
|
res.then(resolve, reject);
|
|
}
|
|
} else if (isPromise(res.component)) {
|
|
res.component.then(resolve, reject);
|
|
|
|
if (isDef(res.error)) {
|
|
factory.errorComp = ensureCtor(res.error, baseCtor);
|
|
}
|
|
|
|
if (isDef(res.loading)) {
|
|
factory.loadingComp = ensureCtor(res.loading, baseCtor);
|
|
if (res.delay === 0) {
|
|
factory.loading = true;
|
|
} else {
|
|
timerLoading = setTimeout(() => {
|
|
timerLoading = null;
|
|
if (isUndef(factory.resolved) && isUndef(factory.error)) {
|
|
factory.loading = true;
|
|
forceRender(false);
|
|
}
|
|
}, res.delay || 200);
|
|
}
|
|
}
|
|
|
|
if (isDef(res.timeout)) {
|
|
timerTimeout = setTimeout(() => {
|
|
timerTimeout = null;
|
|
if (isUndef(factory.resolved)) {
|
|
reject(
|
|
`timeout (${res.timeout}ms)`
|
|
);
|
|
}
|
|
}, res.timeout);
|
|
}
|
|
}
|
|
}
|
|
|
|
sync = false;
|
|
// return in case resolved synchronously
|
|
return factory.loading
|
|
? factory.loadingComp
|
|
: factory.resolved
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
function isAsyncPlaceholder (node) {
|
|
return node.isComment && node.asyncFactory
|
|
}
|
|
|
|
/* */
|
|
|
|
function getFirstComponentChild (children) {
|
|
if (Array.isArray(children)) {
|
|
for (let i = 0; i < children.length; i++) {
|
|
const c = children[i];
|
|
if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
|
|
return c
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
/* */
|
|
|
|
function initEvents (vm) {
|
|
vm._events = Object.create(null);
|
|
vm._hasHookEvent = false;
|
|
// init parent attached events
|
|
const listeners = vm.$options._parentListeners;
|
|
if (listeners) {
|
|
updateComponentListeners(vm, listeners);
|
|
}
|
|
}
|
|
|
|
let target;
|
|
|
|
function add (event, fn) {
|
|
target.$on(event, fn);
|
|
}
|
|
|
|
function remove$1 (event, fn) {
|
|
target.$off(event, fn);
|
|
}
|
|
|
|
function createOnceHandler (event, fn) {
|
|
const _target = target;
|
|
return function onceHandler () {
|
|
const res = fn.apply(null, arguments);
|
|
if (res !== null) {
|
|
_target.$off(event, onceHandler);
|
|
}
|
|
}
|
|
}
|
|
|
|
function updateComponentListeners (
|
|
vm,
|
|
listeners,
|
|
oldListeners
|
|
) {
|
|
target = vm;
|
|
updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
|
|
target = undefined;
|
|
}
|
|
|
|
function eventsMixin (Vue) {
|
|
const hookRE = /^hook:/;
|
|
Vue.prototype.$on = function (event, fn) {
|
|
const vm = this;
|
|
if (Array.isArray(event)) {
|
|
for (let i = 0, l = event.length; i < l; i++) {
|
|
vm.$on(event[i], fn);
|
|
}
|
|
} else {
|
|
(vm._events[event] || (vm._events[event] = [])).push(fn);
|
|
// optimize hook:event cost by using a boolean flag marked at registration
|
|
// instead of a hash lookup
|
|
if (hookRE.test(event)) {
|
|
vm._hasHookEvent = true;
|
|
}
|
|
}
|
|
return vm
|
|
};
|
|
|
|
Vue.prototype.$once = function (event, fn) {
|
|
const vm = this;
|
|
function on () {
|
|
vm.$off(event, on);
|
|
fn.apply(vm, arguments);
|
|
}
|
|
on.fn = fn;
|
|
vm.$on(event, on);
|
|
return vm
|
|
};
|
|
|
|
Vue.prototype.$off = function (event, fn) {
|
|
const vm = this;
|
|
// all
|
|
if (!arguments.length) {
|
|
vm._events = Object.create(null);
|
|
return vm
|
|
}
|
|
// array of events
|
|
if (Array.isArray(event)) {
|
|
for (let i = 0, l = event.length; i < l; i++) {
|
|
vm.$off(event[i], fn);
|
|
}
|
|
return vm
|
|
}
|
|
// specific event
|
|
const cbs = vm._events[event];
|
|
if (!cbs) {
|
|
return vm
|
|
}
|
|
if (!fn) {
|
|
vm._events[event] = null;
|
|
return vm
|
|
}
|
|
// specific handler
|
|
let cb;
|
|
let i = cbs.length;
|
|
while (i--) {
|
|
cb = cbs[i];
|
|
if (cb === fn || cb.fn === fn) {
|
|
cbs.splice(i, 1);
|
|
break
|
|
}
|
|
}
|
|
return vm
|
|
};
|
|
|
|
Vue.prototype.$emit = function (event) {
|
|
const vm = this;
|
|
{
|
|
const lowerCaseEvent = event.toLowerCase();
|
|
if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
|
|
tip(
|
|
`Event "${lowerCaseEvent}" is emitted in component ` +
|
|
`${formatComponentName(vm)} but the handler is registered for "${event}". ` +
|
|
`Note that HTML attributes are case-insensitive and you cannot use ` +
|
|
`v-on to listen to camelCase events when using in-DOM templates. ` +
|
|
`You should probably use "${hyphenate(event)}" instead of "${event}".`
|
|
);
|
|
}
|
|
}
|
|
let cbs = vm._events[event];
|
|
if (cbs) {
|
|
cbs = cbs.length > 1 ? toArray(cbs) : cbs;
|
|
const args = toArray(arguments, 1);
|
|
const info = `event handler for "${event}"`;
|
|
for (let i = 0, l = cbs.length; i < l; i++) {
|
|
invokeWithErrorHandling(cbs[i], vm, args, vm, info);
|
|
}
|
|
}
|
|
return vm
|
|
};
|
|
}
|
|
|
|
/* */
|
|
|
|
let activeInstance = null;
|
|
let isUpdatingChildComponent = false;
|
|
|
|
function setActiveInstance(vm) {
|
|
const prevActiveInstance = activeInstance;
|
|
activeInstance = vm;
|
|
return () => {
|
|
activeInstance = prevActiveInstance;
|
|
}
|
|
}
|
|
|
|
function initLifecycle (vm) {
|
|
const options = vm.$options;
|
|
|
|
// locate first non-abstract parent
|
|
let parent = options.parent;
|
|
if (parent && !options.abstract) {
|
|
while (parent.$options.abstract && parent.$parent) {
|
|
parent = parent.$parent;
|
|
}
|
|
parent.$children.push(vm);
|
|
}
|
|
|
|
vm.$parent = parent;
|
|
vm.$root = parent ? parent.$root : vm;
|
|
|
|
vm.$children = [];
|
|
vm.$refs = {};
|
|
|
|
vm._watcher = null;
|
|
vm._inactive = null;
|
|
vm._directInactive = false;
|
|
vm._isMounted = false;
|
|
vm._isDestroyed = false;
|
|
vm._isBeingDestroyed = false;
|
|
}
|
|
|
|
function lifecycleMixin (Vue) {
|
|
Vue.prototype._update = function (vnode, hydrating) {
|
|
const vm = this;
|
|
const prevEl = vm.$el;
|
|
const prevVnode = vm._vnode;
|
|
const restoreActiveInstance = setActiveInstance(vm);
|
|
vm._vnode = vnode;
|
|
// Vue.prototype.__patch__ is injected in entry points
|
|
// based on the rendering backend used.
|
|
if (!prevVnode) {
|
|
// initial render
|
|
vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
|
|
} else {
|
|
// updates
|
|
vm.$el = vm.__patch__(prevVnode, vnode);
|
|
}
|
|
restoreActiveInstance();
|
|
// update __vue__ reference
|
|
if (prevEl) {
|
|
prevEl.__vue__ = null;
|
|
}
|
|
if (vm.$el) {
|
|
vm.$el.__vue__ = vm;
|
|
}
|
|
// if parent is an HOC, update its $el as well
|
|
if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
|
|
vm.$parent.$el = vm.$el;
|
|
}
|
|
// updated hook is called by the scheduler to ensure that children are
|
|
// updated in a parent's updated hook.
|
|
};
|
|
|
|
Vue.prototype.$forceUpdate = function () {
|
|
const vm = this;
|
|
if (vm._watcher) {
|
|
vm._watcher.update();
|
|
}
|
|
};
|
|
|
|
Vue.prototype.$destroy = function () {
|
|
const vm = this;
|
|
if (vm._isBeingDestroyed) {
|
|
return
|
|
}
|
|
callHook(vm, 'beforeDestroy');
|
|
vm._isBeingDestroyed = true;
|
|
// remove self from parent
|
|
const parent = vm.$parent;
|
|
if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
|
|
remove(parent.$children, vm);
|
|
}
|
|
// teardown watchers
|
|
if (vm._watcher) {
|
|
vm._watcher.teardown();
|
|
}
|
|
let i = vm._watchers.length;
|
|
while (i--) {
|
|
vm._watchers[i].teardown();
|
|
}
|
|
// remove reference from data ob
|
|
// frozen object may not have observer.
|
|
if (vm._data.__ob__) {
|
|
vm._data.__ob__.vmCount--;
|
|
}
|
|
// call the last hook...
|
|
vm._isDestroyed = true;
|
|
// invoke destroy hooks on current rendered tree
|
|
vm.__patch__(vm._vnode, null);
|
|
// fire destroyed hook
|
|
callHook(vm, 'destroyed');
|
|
// turn off all instance listeners.
|
|
vm.$off();
|
|
// remove __vue__ reference
|
|
if (vm.$el) {
|
|
vm.$el.__vue__ = null;
|
|
}
|
|
// release circular reference (#6759)
|
|
if (vm.$vnode) {
|
|
vm.$vnode.parent = null;
|
|
}
|
|
};
|
|
}
|
|
|
|
function mountComponent (
|
|
vm,
|
|
el,
|
|
hydrating
|
|
) {
|
|
vm.$el = el;
|
|
if (!vm.$options.render) {
|
|
vm.$options.render = createEmptyVNode;
|
|
{
|
|
/* istanbul ignore if */
|
|
if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
|
|
vm.$options.el || el) {
|
|
warn(
|
|
'You are using the runtime-only build of Vue where the template ' +
|
|
'compiler is not available. Either pre-compile the templates into ' +
|
|
'render functions, or use the compiler-included build.',
|
|
vm
|
|
);
|
|
} else {
|
|
warn(
|
|
'Failed to mount component: template or render function not defined.',
|
|
vm
|
|
);
|
|
}
|
|
}
|
|
}
|
|
callHook(vm, 'beforeMount');
|
|
|
|
let updateComponent;
|
|
/* istanbul ignore if */
|
|
if (config.performance && mark) {
|
|
updateComponent = () => {
|
|
const name = vm._name;
|
|
const id = vm._uid;
|
|
const startTag = `vue-perf-start:${id}`;
|
|
const endTag = `vue-perf-end:${id}`;
|
|
|
|
mark(startTag);
|
|
const vnode = vm._render();
|
|
mark(endTag);
|
|
measure(`vue ${name} render`, startTag, endTag);
|
|
|
|
mark(startTag);
|
|
vm._update(vnode, hydrating);
|
|
mark(endTag);
|
|
measure(`vue ${name} patch`, startTag, endTag);
|
|
};
|
|
} else {
|
|
updateComponent = () => {
|
|
vm._update(vm._render(), hydrating);
|
|
};
|
|
}
|
|
|
|
// we set this to vm._watcher inside the watcher's constructor
|
|
// since the watcher's initial patch may call $forceUpdate (e.g. inside child
|
|
// component's mounted hook), which relies on vm._watcher being already defined
|
|
new Watcher(vm, updateComponent, noop, {
|
|
before () {
|
|
if (vm._isMounted && !vm._isDestroyed) {
|
|
callHook(vm, 'beforeUpdate');
|
|
}
|
|
}
|
|
}, true /* isRenderWatcher */);
|
|
hydrating = false;
|
|
|
|
// manually mounted instance, call mounted on self
|
|
// mounted is called for render-created child components in its inserted hook
|
|
if (vm.$vnode == null) {
|
|
vm._isMounted = true;
|
|
callHook(vm, 'mounted');
|
|
}
|
|
return vm
|
|
}
|
|
|
|
function updateChildComponent (
|
|
vm,
|
|
propsData,
|
|
listeners,
|
|
parentVnode,
|
|
renderChildren
|
|
) {
|
|
{
|
|
isUpdatingChildComponent = true;
|
|
}
|
|
|
|
// determine whether component has slot children
|
|
// we need to do this before overwriting $options._renderChildren.
|
|
|
|
// check if there are dynamic scopedSlots (hand-written or compiled but with
|
|
// dynamic slot names). Static scoped slots compiled from template has the
|
|
// "$stable" marker.
|
|
const newScopedSlots = parentVnode.data.scopedSlots;
|
|
const oldScopedSlots = vm.$scopedSlots;
|
|
const hasDynamicScopedSlot = !!(
|
|
(newScopedSlots && !newScopedSlots.$stable) ||
|
|
(oldScopedSlots !== emptyObject && !oldScopedSlots.$stable) ||
|
|
(newScopedSlots && vm.$scopedSlots.$key !== newScopedSlots.$key)
|
|
);
|
|
|
|
// Any static slot children from the parent may have changed during parent's
|
|
// update. Dynamic scoped slots may also have changed. In such cases, a forced
|
|
// update is necessary to ensure correctness.
|
|
const needsForceUpdate = !!(
|
|
renderChildren || // has new static slots
|
|
vm.$options._renderChildren || // has old static slots
|
|
hasDynamicScopedSlot
|
|
);
|
|
|
|
vm.$options._parentVnode = parentVnode;
|
|
vm.$vnode = parentVnode; // update vm's placeholder node without re-render
|
|
|
|
if (vm._vnode) { // update child tree's parent
|
|
vm._vnode.parent = parentVnode;
|
|
}
|
|
vm.$options._renderChildren = renderChildren;
|
|
|
|
// update $attrs and $listeners hash
|
|
// these are also reactive so they may trigger child update if the child
|
|
// used them during render
|
|
vm.$attrs = parentVnode.data.attrs || emptyObject;
|
|
vm.$listeners = listeners || emptyObject;
|
|
|
|
// update props
|
|
if (propsData && vm.$options.props) {
|
|
toggleObserving(false);
|
|
const props = vm._props;
|
|
const propKeys = vm.$options._propKeys || [];
|
|
for (let i = 0; i < propKeys.length; i++) {
|
|
const key = propKeys[i];
|
|
const propOptions = vm.$options.props; // wtf flow?
|
|
props[key] = validateProp(key, propOptions, propsData, vm);
|
|
}
|
|
toggleObserving(true);
|
|
// keep a copy of raw propsData
|
|
vm.$options.propsData = propsData;
|
|
}
|
|
|
|
// update listeners
|
|
listeners = listeners || emptyObject;
|
|
const oldListeners = vm.$options._parentListeners;
|
|
vm.$options._parentListeners = listeners;
|
|
updateComponentListeners(vm, listeners, oldListeners);
|
|
|
|
// resolve slots + force update if has children
|
|
if (needsForceUpdate) {
|
|
vm.$slots = resolveSlots(renderChildren, parentVnode.context);
|
|
vm.$forceUpdate();
|
|
}
|
|
|
|
{
|
|
isUpdatingChildComponent = false;
|
|
}
|
|
}
|
|
|
|
function isInInactiveTree (vm) {
|
|
while (vm && (vm = vm.$parent)) {
|
|
if (vm._inactive) return true
|
|
}
|
|
return false
|
|
}
|
|
|
|
function activateChildComponent (vm, direct) {
|
|
if (direct) {
|
|
vm._directInactive = false;
|
|
if (isInInactiveTree(vm)) {
|
|
return
|
|
}
|
|
} else if (vm._directInactive) {
|
|
return
|
|
}
|
|
if (vm._inactive || vm._inactive === null) {
|
|
vm._inactive = false;
|
|
for (let i = 0; i < vm.$children.length; i++) {
|
|
activateChildComponent(vm.$children[i]);
|
|
}
|
|
callHook(vm, 'activated');
|
|
}
|
|
}
|
|
|
|
function deactivateChildComponent (vm, direct) {
|
|
if (direct) {
|
|
vm._directInactive = true;
|
|
if (isInInactiveTree(vm)) {
|
|
return
|
|
}
|
|
}
|
|
if (!vm._inactive) {
|
|
vm._inactive = true;
|
|
for (let i = 0; i < vm.$children.length; i++) {
|
|
deactivateChildComponent(vm.$children[i]);
|
|
}
|
|
callHook(vm, 'deactivated');
|
|
}
|
|
}
|
|
|
|
function callHook (vm, hook) {
|
|
// #7573 disable dep collection when invoking lifecycle hooks
|
|
pushTarget();
|
|
const handlers = vm.$options[hook];
|
|
const info = `${hook} hook`;
|
|
if (handlers) {
|
|
for (let i = 0, j = handlers.length; i < j; i++) {
|
|
invokeWithErrorHandling(handlers[i], vm, null, vm, info);
|
|
}
|
|
}
|
|
if (vm._hasHookEvent) {
|
|
vm.$emit('hook:' + hook);
|
|
}
|
|
popTarget();
|
|
}
|
|
|
|
/* */
|
|
|
|
const MAX_UPDATE_COUNT = 100;
|
|
|
|
const queue = [];
|
|
const activatedChildren = [];
|
|
let has = {};
|
|
let circular = {};
|
|
let waiting = false;
|
|
let flushing = false;
|
|
let index = 0;
|
|
|
|
/**
|
|
* Reset the scheduler's state.
|
|
*/
|
|
function resetSchedulerState () {
|
|
index = queue.length = activatedChildren.length = 0;
|
|
has = {};
|
|
{
|
|
circular = {};
|
|
}
|
|
waiting = flushing = false;
|
|
}
|
|
|
|
// Async edge case #6566 requires saving the timestamp when event listeners are
|
|
// attached. However, calling performance.now() has a perf overhead especially
|
|
// if the page has thousands of event listeners. Instead, we take a timestamp
|
|
// every time the scheduler flushes and use that for all event listeners
|
|
// attached during that flush.
|
|
let currentFlushTimestamp = 0;
|
|
|
|
// Async edge case fix requires storing an event listener's attach timestamp.
|
|
let getNow = Date.now;
|
|
|
|
// Determine what event timestamp the browser is using. Annoyingly, the
|
|
// timestamp can either be hi-res (relative to page load) or low-res
|
|
// (relative to UNIX epoch), so in order to compare time we have to use the
|
|
// same timestamp type when saving the flush timestamp.
|
|
// All IE versions use low-res event timestamps, and have problematic clock
|
|
// implementations (#9632)
|
|
if (inBrowser && !isIE) {
|
|
const performance = window.performance;
|
|
if (
|
|
performance &&
|
|
typeof performance.now === 'function' &&
|
|
getNow() > document.createEvent('Event').timeStamp
|
|
) {
|
|
// if the event timestamp, although evaluated AFTER the Date.now(), is
|
|
// smaller than it, it means the event is using a hi-res timestamp,
|
|
// and we need to use the hi-res version for event listener timestamps as
|
|
// well.
|
|
getNow = () => performance.now();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Flush both queues and run the watchers.
|
|
*/
|
|
function flushSchedulerQueue () {
|
|
currentFlushTimestamp = getNow();
|
|
flushing = true;
|
|
let watcher, id;
|
|
|
|
// Sort queue before flush.
|
|
// This ensures that:
|
|
// 1. Components are updated from parent to child. (because parent is always
|
|
// created before the child)
|
|
// 2. A component's user watchers are run before its render watcher (because
|
|
// user watchers are created before the render watcher)
|
|
// 3. If a component is destroyed during a parent component's watcher run,
|
|
// its watchers can be skipped.
|
|
queue.sort((a, b) => a.id - b.id);
|
|
|
|
// do not cache length because more watchers might be pushed
|
|
// as we run existing watchers
|
|
for (index = 0; index < queue.length; index++) {
|
|
watcher = queue[index];
|
|
if (watcher.before) {
|
|
watcher.before();
|
|
}
|
|
id = watcher.id;
|
|
has[id] = null;
|
|
watcher.run();
|
|
// in dev build, check and stop circular updates.
|
|
if (has[id] != null) {
|
|
circular[id] = (circular[id] || 0) + 1;
|
|
if (circular[id] > MAX_UPDATE_COUNT) {
|
|
warn(
|
|
'You may have an infinite update loop ' + (
|
|
watcher.user
|
|
? `in watcher with expression "${watcher.expression}"`
|
|
: `in a component render function.`
|
|
),
|
|
watcher.vm
|
|
);
|
|
break
|
|
}
|
|
}
|
|
}
|
|
|
|
// keep copies of post queues before resetting state
|
|
const activatedQueue = activatedChildren.slice();
|
|
const updatedQueue = queue.slice();
|
|
|
|
resetSchedulerState();
|
|
|
|
// call component updated and activated hooks
|
|
callActivatedHooks(activatedQueue);
|
|
callUpdatedHooks(updatedQueue);
|
|
|
|
// devtool hook
|
|
/* istanbul ignore if */
|
|
if (devtools && config.devtools) {
|
|
devtools.emit('flush');
|
|
}
|
|
}
|
|
|
|
function callUpdatedHooks (queue) {
|
|
let i = queue.length;
|
|
while (i--) {
|
|
const watcher = queue[i];
|
|
const vm = watcher.vm;
|
|
if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
|
|
callHook(vm, 'updated');
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Queue a kept-alive component that was activated during patch.
|
|
* The queue will be processed after the entire tree has been patched.
|
|
*/
|
|
function queueActivatedComponent (vm) {
|
|
// setting _inactive to false here so that a render function can
|
|
// rely on checking whether it's in an inactive tree (e.g. router-view)
|
|
vm._inactive = false;
|
|
activatedChildren.push(vm);
|
|
}
|
|
|
|
function callActivatedHooks (queue) {
|
|
for (let i = 0; i < queue.length; i++) {
|
|
queue[i]._inactive = true;
|
|
activateChildComponent(queue[i], true /* true */);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Push a watcher into the watcher queue.
|
|
* Jobs with duplicate IDs will be skipped unless it's
|
|
* pushed when the queue is being flushed.
|
|
*/
|
|
function queueWatcher (watcher) {
|
|
const id = watcher.id;
|
|
if (has[id] == null) {
|
|
has[id] = true;
|
|
if (!flushing) {
|
|
queue.push(watcher);
|
|
} else {
|
|
// if already flushing, splice the watcher based on its id
|
|
// if already past its id, it will be run next immediately.
|
|
let i = queue.length - 1;
|
|
while (i > index && queue[i].id > watcher.id) {
|
|
i--;
|
|
}
|
|
queue.splice(i + 1, 0, watcher);
|
|
}
|
|
// queue the flush
|
|
if (!waiting) {
|
|
waiting = true;
|
|
|
|
if (!config.async) {
|
|
flushSchedulerQueue();
|
|
return
|
|
}
|
|
nextTick(flushSchedulerQueue);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
|
|
|
|
let uid$2 = 0;
|
|
|
|
/**
|
|
* A watcher parses an expression, collects dependencies,
|
|
* and fires callback when the expression value changes.
|
|
* This is used for both the $watch() api and directives.
|
|
*/
|
|
class Watcher {
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
constructor (
|
|
vm,
|
|
expOrFn,
|
|
cb,
|
|
options,
|
|
isRenderWatcher
|
|
) {
|
|
this.vm = vm;
|
|
if (isRenderWatcher) {
|
|
vm._watcher = this;
|
|
}
|
|
vm._watchers.push(this);
|
|
// options
|
|
if (options) {
|
|
this.deep = !!options.deep;
|
|
this.user = !!options.user;
|
|
this.lazy = !!options.lazy;
|
|
this.sync = !!options.sync;
|
|
this.before = options.before;
|
|
} else {
|
|
this.deep = this.user = this.lazy = this.sync = false;
|
|
}
|
|
this.cb = cb;
|
|
this.id = ++uid$2; // uid for batching
|
|
this.active = true;
|
|
this.dirty = this.lazy; // for lazy watchers
|
|
this.deps = [];
|
|
this.newDeps = [];
|
|
this.depIds = new _Set();
|
|
this.newDepIds = new _Set();
|
|
this.expression = expOrFn.toString();
|
|
// parse expression for getter
|
|
if (typeof expOrFn === 'function') {
|
|
this.getter = expOrFn;
|
|
} else {
|
|
this.getter = parsePath(expOrFn);
|
|
if (!this.getter) {
|
|
this.getter = noop;
|
|
warn(
|
|
`Failed watching path: "${expOrFn}" ` +
|
|
'Watcher only accepts simple dot-delimited paths. ' +
|
|
'For full control, use a function instead.',
|
|
vm
|
|
);
|
|
}
|
|
}
|
|
this.value = this.lazy
|
|
? undefined
|
|
: this.get();
|
|
}
|
|
|
|
/**
|
|
* Evaluate the getter, and re-collect dependencies.
|
|
*/
|
|
get () {
|
|
pushTarget(this);
|
|
let value;
|
|
const vm = this.vm;
|
|
try {
|
|
value = this.getter.call(vm, vm);
|
|
} catch (e) {
|
|
if (this.user) {
|
|
handleError(e, vm, `getter for watcher "${this.expression}"`);
|
|
} else {
|
|
throw e
|
|
}
|
|
} finally {
|
|
// "touch" every property so they are all tracked as
|
|
// dependencies for deep watching
|
|
if (this.deep) {
|
|
traverse(value);
|
|
}
|
|
popTarget();
|
|
this.cleanupDeps();
|
|
}
|
|
return value
|
|
}
|
|
|
|
/**
|
|
* Add a dependency to this directive.
|
|
*/
|
|
addDep (dep) {
|
|
const id = dep.id;
|
|
if (!this.newDepIds.has(id)) {
|
|
this.newDepIds.add(id);
|
|
this.newDeps.push(dep);
|
|
if (!this.depIds.has(id)) {
|
|
dep.addSub(this);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Clean up for dependency collection.
|
|
*/
|
|
cleanupDeps () {
|
|
let i = this.deps.length;
|
|
while (i--) {
|
|
const dep = this.deps[i];
|
|
if (!this.newDepIds.has(dep.id)) {
|
|
dep.removeSub(this);
|
|
}
|
|
}
|
|
let tmp = this.depIds;
|
|
this.depIds = this.newDepIds;
|
|
this.newDepIds = tmp;
|
|
this.newDepIds.clear();
|
|
tmp = this.deps;
|
|
this.deps = this.newDeps;
|
|
this.newDeps = tmp;
|
|
this.newDeps.length = 0;
|
|
}
|
|
|
|
/**
|
|
* Subscriber interface.
|
|
* Will be called when a dependency changes.
|
|
*/
|
|
update () {
|
|
/* istanbul ignore else */
|
|
if (this.lazy) {
|
|
this.dirty = true;
|
|
} else if (this.sync) {
|
|
this.run();
|
|
} else {
|
|
queueWatcher(this);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Scheduler job interface.
|
|
* Will be called by the scheduler.
|
|
*/
|
|
run () {
|
|
if (this.active) {
|
|
const value = this.get();
|
|
if (
|
|
value !== this.value ||
|
|
// Deep watchers and watchers on Object/Arrays should fire even
|
|
// when the value is the same, because the value may
|
|
// have mutated.
|
|
isObject(value) ||
|
|
this.deep
|
|
) {
|
|
// set new value
|
|
const oldValue = this.value;
|
|
this.value = value;
|
|
if (this.user) {
|
|
try {
|
|
this.cb.call(this.vm, value, oldValue);
|
|
} catch (e) {
|
|
handleError(e, this.vm, `callback for watcher "${this.expression}"`);
|
|
}
|
|
} else {
|
|
this.cb.call(this.vm, value, oldValue);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Evaluate the value of the watcher.
|
|
* This only gets called for lazy watchers.
|
|
*/
|
|
evaluate () {
|
|
this.value = this.get();
|
|
this.dirty = false;
|
|
}
|
|
|
|
/**
|
|
* Depend on all deps collected by this watcher.
|
|
*/
|
|
depend () {
|
|
let i = this.deps.length;
|
|
while (i--) {
|
|
this.deps[i].depend();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Remove self from all dependencies' subscriber list.
|
|
*/
|
|
teardown () {
|
|
if (this.active) {
|
|
// remove self from vm's watcher list
|
|
// this is a somewhat expensive operation so we skip it
|
|
// if the vm is being destroyed.
|
|
if (!this.vm._isBeingDestroyed) {
|
|
remove(this.vm._watchers, this);
|
|
}
|
|
let i = this.deps.length;
|
|
while (i--) {
|
|
this.deps[i].removeSub(this);
|
|
}
|
|
this.active = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
const sharedPropertyDefinition = {
|
|
enumerable: true,
|
|
configurable: true,
|
|
get: noop,
|
|
set: noop
|
|
};
|
|
|
|
function proxy (target, sourceKey, key) {
|
|
sharedPropertyDefinition.get = function proxyGetter () {
|
|
return this[sourceKey][key]
|
|
};
|
|
sharedPropertyDefinition.set = function proxySetter (val) {
|
|
this[sourceKey][key] = val;
|
|
};
|
|
Object.defineProperty(target, key, sharedPropertyDefinition);
|
|
}
|
|
|
|
function initState (vm) {
|
|
vm._watchers = [];
|
|
const opts = vm.$options;
|
|
if (opts.props) initProps(vm, opts.props);
|
|
if (opts.methods) initMethods(vm, opts.methods);
|
|
if (opts.data) {
|
|
initData(vm);
|
|
} else {
|
|
observe(vm._data = {}, true /* asRootData */);
|
|
}
|
|
if (opts.computed) initComputed(vm, opts.computed);
|
|
if (opts.watch && opts.watch !== nativeWatch) {
|
|
initWatch(vm, opts.watch);
|
|
}
|
|
}
|
|
|
|
function initProps (vm, propsOptions) {
|
|
const propsData = vm.$options.propsData || {};
|
|
const props = vm._props = {};
|
|
// cache prop keys so that future props updates can iterate using Array
|
|
// instead of dynamic object key enumeration.
|
|
const keys = vm.$options._propKeys = [];
|
|
const isRoot = !vm.$parent;
|
|
// root instance props should be converted
|
|
if (!isRoot) {
|
|
toggleObserving(false);
|
|
}
|
|
for (const key in propsOptions) {
|
|
keys.push(key);
|
|
const value = validateProp(key, propsOptions, propsData, vm);
|
|
/* istanbul ignore else */
|
|
{
|
|
const hyphenatedKey = hyphenate(key);
|
|
if (isReservedAttribute(hyphenatedKey) ||
|
|
config.isReservedAttr(hyphenatedKey)) {
|
|
warn(
|
|
`"${hyphenatedKey}" is a reserved attribute and cannot be used as component prop.`,
|
|
vm
|
|
);
|
|
}
|
|
defineReactive$$1(props, key, value, () => {
|
|
if (!isRoot && !isUpdatingChildComponent) {
|
|
warn(
|
|
`Avoid mutating a prop directly since the value will be ` +
|
|
`overwritten whenever the parent component re-renders. ` +
|
|
`Instead, use a data or computed property based on the prop's ` +
|
|
`value. Prop being mutated: "${key}"`,
|
|
vm
|
|
);
|
|
}
|
|
});
|
|
}
|
|
// static props are already proxied on the component's prototype
|
|
// during Vue.extend(). We only need to proxy props defined at
|
|
// instantiation here.
|
|
if (!(key in vm)) {
|
|
proxy(vm, `_props`, key);
|
|
}
|
|
}
|
|
toggleObserving(true);
|
|
}
|
|
|
|
function initData (vm) {
|
|
let data = vm.$options.data;
|
|
data = vm._data = typeof data === 'function'
|
|
? getData(data, vm)
|
|
: data || {};
|
|
if (!isPlainObject(data)) {
|
|
data = {};
|
|
warn(
|
|
'data functions should return an object:\n' +
|
|
'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
|
|
vm
|
|
);
|
|
}
|
|
// proxy data on instance
|
|
const keys = Object.keys(data);
|
|
const props = vm.$options.props;
|
|
const methods = vm.$options.methods;
|
|
let i = keys.length;
|
|
while (i--) {
|
|
const key = keys[i];
|
|
{
|
|
if (methods && hasOwn(methods, key)) {
|
|
warn(
|
|
`Method "${key}" has already been defined as a data property.`,
|
|
vm
|
|
);
|
|
}
|
|
}
|
|
if (props && hasOwn(props, key)) {
|
|
warn(
|
|
`The data property "${key}" is already declared as a prop. ` +
|
|
`Use prop default value instead.`,
|
|
vm
|
|
);
|
|
} else if (!isReserved(key)) {
|
|
proxy(vm, `_data`, key);
|
|
}
|
|
}
|
|
// observe data
|
|
observe(data, true /* asRootData */);
|
|
}
|
|
|
|
function getData (data, vm) {
|
|
// #7573 disable dep collection when invoking data getters
|
|
pushTarget();
|
|
try {
|
|
return data.call(vm, vm)
|
|
} catch (e) {
|
|
handleError(e, vm, `data()`);
|
|
return {}
|
|
} finally {
|
|
popTarget();
|
|
}
|
|
}
|
|
|
|
const computedWatcherOptions = { lazy: true };
|
|
|
|
function initComputed (vm, computed) {
|
|
// $flow-disable-line
|
|
const watchers = vm._computedWatchers = Object.create(null);
|
|
// computed properties are just getters during SSR
|
|
const isSSR = isServerRendering();
|
|
|
|
for (const key in computed) {
|
|
const userDef = computed[key];
|
|
const getter = typeof userDef === 'function' ? userDef : userDef.get;
|
|
if (getter == null) {
|
|
warn(
|
|
`Getter is missing for computed property "${key}".`,
|
|
vm
|
|
);
|
|
}
|
|
|
|
if (!isSSR) {
|
|
// create internal watcher for the computed property.
|
|
watchers[key] = new Watcher(
|
|
vm,
|
|
getter || noop,
|
|
noop,
|
|
computedWatcherOptions
|
|
);
|
|
}
|
|
|
|
// component-defined computed properties are already defined on the
|
|
// component prototype. We only need to define computed properties defined
|
|
// at instantiation here.
|
|
if (!(key in vm)) {
|
|
defineComputed(vm, key, userDef);
|
|
} else {
|
|
if (key in vm.$data) {
|
|
warn(`The computed property "${key}" is already defined in data.`, vm);
|
|
} else if (vm.$options.props && key in vm.$options.props) {
|
|
warn(`The computed property "${key}" is already defined as a prop.`, vm);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function defineComputed (
|
|
target,
|
|
key,
|
|
userDef
|
|
) {
|
|
const shouldCache = !isServerRendering();
|
|
if (typeof userDef === 'function') {
|
|
sharedPropertyDefinition.get = shouldCache
|
|
? createComputedGetter(key)
|
|
: createGetterInvoker(userDef);
|
|
sharedPropertyDefinition.set = noop;
|
|
} else {
|
|
sharedPropertyDefinition.get = userDef.get
|
|
? shouldCache && userDef.cache !== false
|
|
? createComputedGetter(key)
|
|
: createGetterInvoker(userDef.get)
|
|
: noop;
|
|
sharedPropertyDefinition.set = userDef.set || noop;
|
|
}
|
|
if (sharedPropertyDefinition.set === noop) {
|
|
sharedPropertyDefinition.set = function () {
|
|
warn(
|
|
`Computed property "${key}" was assigned to but it has no setter.`,
|
|
this
|
|
);
|
|
};
|
|
}
|
|
Object.defineProperty(target, key, sharedPropertyDefinition);
|
|
}
|
|
|
|
function createComputedGetter (key) {
|
|
return function computedGetter () {
|
|
const watcher = this._computedWatchers && this._computedWatchers[key];
|
|
if (watcher) {
|
|
if (watcher.dirty) {
|
|
watcher.evaluate();
|
|
}
|
|
if (Dep.target) {
|
|
watcher.depend();
|
|
}
|
|
return watcher.value
|
|
}
|
|
}
|
|
}
|
|
|
|
function createGetterInvoker(fn) {
|
|
return function computedGetter () {
|
|
return fn.call(this, this)
|
|
}
|
|
}
|
|
|
|
function initMethods (vm, methods) {
|
|
const props = vm.$options.props;
|
|
for (const key in methods) {
|
|
{
|
|
if (typeof methods[key] !== 'function') {
|
|
warn(
|
|
`Method "${key}" has type "${typeof methods[key]}" in the component definition. ` +
|
|
`Did you reference the function correctly?`,
|
|
vm
|
|
);
|
|
}
|
|
if (props && hasOwn(props, key)) {
|
|
warn(
|
|
`Method "${key}" has already been defined as a prop.`,
|
|
vm
|
|
);
|
|
}
|
|
if ((key in vm) && isReserved(key)) {
|
|
warn(
|
|
`Method "${key}" conflicts with an existing Vue instance method. ` +
|
|
`Avoid defining component methods that start with _ or $.`
|
|
);
|
|
}
|
|
}
|
|
vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
|
|
}
|
|
}
|
|
|
|
function initWatch (vm, watch) {
|
|
for (const key in watch) {
|
|
const handler = watch[key];
|
|
if (Array.isArray(handler)) {
|
|
for (let i = 0; i < handler.length; i++) {
|
|
createWatcher(vm, key, handler[i]);
|
|
}
|
|
} else {
|
|
createWatcher(vm, key, handler);
|
|
}
|
|
}
|
|
}
|
|
|
|
function createWatcher (
|
|
vm,
|
|
expOrFn,
|
|
handler,
|
|
options
|
|
) {
|
|
if (isPlainObject(handler)) {
|
|
options = handler;
|
|
handler = handler.handler;
|
|
}
|
|
if (typeof handler === 'string') {
|
|
handler = vm[handler];
|
|
}
|
|
return vm.$watch(expOrFn, handler, options)
|
|
}
|
|
|
|
function stateMixin (Vue) {
|
|
// flow somehow has problems with directly declared definition object
|
|
// when using Object.defineProperty, so we have to procedurally build up
|
|
// the object here.
|
|
const dataDef = {};
|
|
dataDef.get = function () { return this._data };
|
|
const propsDef = {};
|
|
propsDef.get = function () { return this._props };
|
|
{
|
|
dataDef.set = function () {
|
|
warn(
|
|
'Avoid replacing instance root $data. ' +
|
|
'Use nested data properties instead.',
|
|
this
|
|
);
|
|
};
|
|
propsDef.set = function () {
|
|
warn(`$props is readonly.`, this);
|
|
};
|
|
}
|
|
Object.defineProperty(Vue.prototype, '$data', dataDef);
|
|
Object.defineProperty(Vue.prototype, '$props', propsDef);
|
|
|
|
Vue.prototype.$set = set;
|
|
Vue.prototype.$delete = del;
|
|
|
|
Vue.prototype.$watch = function (
|
|
expOrFn,
|
|
cb,
|
|
options
|
|
) {
|
|
const vm = this;
|
|
if (isPlainObject(cb)) {
|
|
return createWatcher(vm, expOrFn, cb, options)
|
|
}
|
|
options = options || {};
|
|
options.user = true;
|
|
const watcher = new Watcher(vm, expOrFn, cb, options);
|
|
if (options.immediate) {
|
|
try {
|
|
cb.call(vm, watcher.value);
|
|
} catch (error) {
|
|
handleError(error, vm, `callback for immediate watcher "${watcher.expression}"`);
|
|
}
|
|
}
|
|
return function unwatchFn () {
|
|
watcher.teardown();
|
|
}
|
|
};
|
|
}
|
|
|
|
/* */
|
|
|
|
let uid$3 = 0;
|
|
|
|
function initMixin (Vue) {
|
|
Vue.prototype._init = function (options) {
|
|
const vm = this;
|
|
// a uid
|
|
vm._uid = uid$3++;
|
|
|
|
let startTag, endTag;
|
|
/* istanbul ignore if */
|
|
if (config.performance && mark) {
|
|
startTag = `vue-perf-start:${vm._uid}`;
|
|
endTag = `vue-perf-end:${vm._uid}`;
|
|
mark(startTag);
|
|
}
|
|
|
|
// a flag to avoid this being observed
|
|
vm._isVue = true;
|
|
// merge options
|
|
if (options && options._isComponent) {
|
|
// optimize internal component instantiation
|
|
// since dynamic options merging is pretty slow, and none of the
|
|
// internal component options needs special treatment.
|
|
initInternalComponent(vm, options);
|
|
} else {
|
|
vm.$options = mergeOptions(
|
|
resolveConstructorOptions(vm.constructor),
|
|
options || {},
|
|
vm
|
|
);
|
|
}
|
|
/* istanbul ignore else */
|
|
{
|
|
initProxy(vm);
|
|
}
|
|
// expose real self
|
|
vm._self = vm;
|
|
initLifecycle(vm);
|
|
initEvents(vm);
|
|
initRender(vm);
|
|
callHook(vm, 'beforeCreate');
|
|
initInjections(vm); // resolve injections before data/props
|
|
initState(vm);
|
|
initProvide(vm); // resolve provide after data/props
|
|
callHook(vm, 'created');
|
|
|
|
/* istanbul ignore if */
|
|
if (config.performance && mark) {
|
|
vm._name = formatComponentName(vm, false);
|
|
mark(endTag);
|
|
measure(`vue ${vm._name} init`, startTag, endTag);
|
|
}
|
|
|
|
if (vm.$options.el) {
|
|
vm.$mount(vm.$options.el);
|
|
}
|
|
};
|
|
}
|
|
|
|
function initInternalComponent (vm, options) {
|
|
const opts = vm.$options = Object.create(vm.constructor.options);
|
|
// doing this because it's faster than dynamic enumeration.
|
|
const parentVnode = options._parentVnode;
|
|
opts.parent = options.parent;
|
|
opts._parentVnode = parentVnode;
|
|
|
|
const vnodeComponentOptions = parentVnode.componentOptions;
|
|
opts.propsData = vnodeComponentOptions.propsData;
|
|
opts._parentListeners = vnodeComponentOptions.listeners;
|
|
opts._renderChildren = vnodeComponentOptions.children;
|
|
opts._componentTag = vnodeComponentOptions.tag;
|
|
|
|
if (options.render) {
|
|
opts.render = options.render;
|
|
opts.staticRenderFns = options.staticRenderFns;
|
|
}
|
|
}
|
|
|
|
function resolveConstructorOptions (Ctor) {
|
|
let options = Ctor.options;
|
|
if (Ctor.super) {
|
|
const superOptions = resolveConstructorOptions(Ctor.super);
|
|
const cachedSuperOptions = Ctor.superOptions;
|
|
if (superOptions !== cachedSuperOptions) {
|
|
// super option changed,
|
|
// need to resolve new options.
|
|
Ctor.superOptions = superOptions;
|
|
// check if there are any late-modified/attached options (#4976)
|
|
const modifiedOptions = resolveModifiedOptions(Ctor);
|
|
// update base extend options
|
|
if (modifiedOptions) {
|
|
extend(Ctor.extendOptions, modifiedOptions);
|
|
}
|
|
options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
|
|
if (options.name) {
|
|
options.components[options.name] = Ctor;
|
|
}
|
|
}
|
|
}
|
|
return options
|
|
}
|
|
|
|
function resolveModifiedOptions (Ctor) {
|
|
let modified;
|
|
const latest = Ctor.options;
|
|
const sealed = Ctor.sealedOptions;
|
|
for (const key in latest) {
|
|
if (latest[key] !== sealed[key]) {
|
|
if (!modified) modified = {};
|
|
modified[key] = latest[key];
|
|
}
|
|
}
|
|
return modified
|
|
}
|
|
|
|
function Vue (options) {
|
|
if (!(this instanceof Vue)
|
|
) {
|
|
warn('Vue is a constructor and should be called with the `new` keyword');
|
|
}
|
|
this._init(options);
|
|
}
|
|
|
|
initMixin(Vue);
|
|
stateMixin(Vue);
|
|
eventsMixin(Vue);
|
|
lifecycleMixin(Vue);
|
|
renderMixin(Vue);
|
|
|
|
/* */
|
|
|
|
function initUse (Vue) {
|
|
Vue.use = function (plugin) {
|
|
const installedPlugins = (this._installedPlugins || (this._installedPlugins = []));
|
|
if (installedPlugins.indexOf(plugin) > -1) {
|
|
return this
|
|
}
|
|
|
|
// additional parameters
|
|
const args = toArray(arguments, 1);
|
|
args.unshift(this);
|
|
if (typeof plugin.install === 'function') {
|
|
plugin.install.apply(plugin, args);
|
|
} else if (typeof plugin === 'function') {
|
|
plugin.apply(null, args);
|
|
}
|
|
installedPlugins.push(plugin);
|
|
return this
|
|
};
|
|
}
|
|
|
|
/* */
|
|
|
|
function initMixin$1 (Vue) {
|
|
Vue.mixin = function (mixin) {
|
|
this.options = mergeOptions(this.options, mixin);
|
|
return this
|
|
};
|
|
}
|
|
|
|
/* */
|
|
|
|
function initExtend (Vue) {
|
|
/**
|
|
* Each instance constructor, including Vue, has a unique
|
|
* cid. This enables us to create wrapped "child
|
|
* constructors" for prototypal inheritance and cache them.
|
|
*/
|
|
Vue.cid = 0;
|
|
let cid = 1;
|
|
|
|
/**
|
|
* Class inheritance
|
|
*/
|
|
Vue.extend = function (extendOptions) {
|
|
extendOptions = extendOptions || {};
|
|
const Super = this;
|
|
const SuperId = Super.cid;
|
|
const cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});
|
|
if (cachedCtors[SuperId]) {
|
|
return cachedCtors[SuperId]
|
|
}
|
|
|
|
const name = extendOptions.name || Super.options.name;
|
|
if (name) {
|
|
validateComponentName(name);
|
|
}
|
|
|
|
const Sub = function VueComponent (options) {
|
|
this._init(options);
|
|
};
|
|
Sub.prototype = Object.create(Super.prototype);
|
|
Sub.prototype.constructor = Sub;
|
|
Sub.cid = cid++;
|
|
Sub.options = mergeOptions(
|
|
Super.options,
|
|
extendOptions
|
|
);
|
|
Sub['super'] = Super;
|
|
|
|
// For props and computed properties, we define the proxy getters on
|
|
// the Vue instances at extension time, on the extended prototype. This
|
|
// avoids Object.defineProperty calls for each instance created.
|
|
if (Sub.options.props) {
|
|
initProps$1(Sub);
|
|
}
|
|
if (Sub.options.computed) {
|
|
initComputed$1(Sub);
|
|
}
|
|
|
|
// allow further extension/mixin/plugin usage
|
|
Sub.extend = Super.extend;
|
|
Sub.mixin = Super.mixin;
|
|
Sub.use = Super.use;
|
|
|
|
// create asset registers, so extended classes
|
|
// can have their private assets too.
|
|
ASSET_TYPES.forEach(function (type) {
|
|
Sub[type] = Super[type];
|
|
});
|
|
// enable recursive self-lookup
|
|
if (name) {
|
|
Sub.options.components[name] = Sub;
|
|
}
|
|
|
|
// keep a reference to the super options at extension time.
|
|
// later at instantiation we can check if Super's options have
|
|
// been updated.
|
|
Sub.superOptions = Super.options;
|
|
Sub.extendOptions = extendOptions;
|
|
Sub.sealedOptions = extend({}, Sub.options);
|
|
|
|
// cache constructor
|
|
cachedCtors[SuperId] = Sub;
|
|
return Sub
|
|
};
|
|
}
|
|
|
|
function initProps$1 (Comp) {
|
|
const props = Comp.options.props;
|
|
for (const key in props) {
|
|
proxy(Comp.prototype, `_props`, key);
|
|
}
|
|
}
|
|
|
|
function initComputed$1 (Comp) {
|
|
const computed = Comp.options.computed;
|
|
for (const key in computed) {
|
|
defineComputed(Comp.prototype, key, computed[key]);
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
function initAssetRegisters (Vue) {
|
|
/**
|
|
* Create asset registration methods.
|
|
*/
|
|
ASSET_TYPES.forEach(type => {
|
|
Vue[type] = function (
|
|
id,
|
|
definition
|
|
) {
|
|
if (!definition) {
|
|
return this.options[type + 's'][id]
|
|
} else {
|
|
/* istanbul ignore if */
|
|
if (type === 'component') {
|
|
validateComponentName(id);
|
|
}
|
|
if (type === 'component' && isPlainObject(definition)) {
|
|
definition.name = definition.name || id;
|
|
definition = this.options._base.extend(definition);
|
|
}
|
|
if (type === 'directive' && typeof definition === 'function') {
|
|
definition = { bind: definition, update: definition };
|
|
}
|
|
this.options[type + 's'][id] = definition;
|
|
return definition
|
|
}
|
|
};
|
|
});
|
|
}
|
|
|
|
/* */
|
|
|
|
|
|
|
|
function getComponentName (opts) {
|
|
return opts && (opts.Ctor.options.name || opts.tag)
|
|
}
|
|
|
|
function matches (pattern, name) {
|
|
if (Array.isArray(pattern)) {
|
|
return pattern.indexOf(name) > -1
|
|
} else if (typeof pattern === 'string') {
|
|
return pattern.split(',').indexOf(name) > -1
|
|
} else if (isRegExp(pattern)) {
|
|
return pattern.test(name)
|
|
}
|
|
/* istanbul ignore next */
|
|
return false
|
|
}
|
|
|
|
function pruneCache (keepAliveInstance, filter) {
|
|
const { cache, keys, _vnode } = keepAliveInstance;
|
|
for (const key in cache) {
|
|
const cachedNode = cache[key];
|
|
if (cachedNode) {
|
|
const name = getComponentName(cachedNode.componentOptions);
|
|
if (name && !filter(name)) {
|
|
pruneCacheEntry(cache, key, keys, _vnode);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function pruneCacheEntry (
|
|
cache,
|
|
key,
|
|
keys,
|
|
current
|
|
) {
|
|
const cached$$1 = cache[key];
|
|
if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {
|
|
cached$$1.componentInstance.$destroy();
|
|
}
|
|
cache[key] = null;
|
|
remove(keys, key);
|
|
}
|
|
|
|
const patternTypes = [String, RegExp, Array];
|
|
|
|
var KeepAlive = {
|
|
name: 'keep-alive',
|
|
abstract: true,
|
|
|
|
props: {
|
|
include: patternTypes,
|
|
exclude: patternTypes,
|
|
max: [String, Number]
|
|
},
|
|
|
|
created () {
|
|
this.cache = Object.create(null);
|
|
this.keys = [];
|
|
},
|
|
|
|
destroyed () {
|
|
for (const key in this.cache) {
|
|
pruneCacheEntry(this.cache, key, this.keys);
|
|
}
|
|
},
|
|
|
|
mounted () {
|
|
this.$watch('include', val => {
|
|
pruneCache(this, name => matches(val, name));
|
|
});
|
|
this.$watch('exclude', val => {
|
|
pruneCache(this, name => !matches(val, name));
|
|
});
|
|
},
|
|
|
|
render () {
|
|
const slot = this.$slots.default;
|
|
const vnode = getFirstComponentChild(slot);
|
|
const componentOptions = vnode && vnode.componentOptions;
|
|
if (componentOptions) {
|
|
// check pattern
|
|
const name = getComponentName(componentOptions);
|
|
const { include, exclude } = this;
|
|
if (
|
|
// not included
|
|
(include && (!name || !matches(include, name))) ||
|
|
// excluded
|
|
(exclude && name && matches(exclude, name))
|
|
) {
|
|
return vnode
|
|
}
|
|
|
|
const { cache, keys } = this;
|
|
const key = vnode.key == null
|
|
// same constructor may get registered as different local components
|
|
// so cid alone is not enough (#3269)
|
|
? componentOptions.Ctor.cid + (componentOptions.tag ? `::${componentOptions.tag}` : '')
|
|
: vnode.key;
|
|
if (cache[key]) {
|
|
vnode.componentInstance = cache[key].componentInstance;
|
|
// make current key freshest
|
|
remove(keys, key);
|
|
keys.push(key);
|
|
} else {
|
|
cache[key] = vnode;
|
|
keys.push(key);
|
|
// prune oldest entry
|
|
if (this.max && keys.length > parseInt(this.max)) {
|
|
pruneCacheEntry(cache, keys[0], keys, this._vnode);
|
|
}
|
|
}
|
|
|
|
vnode.data.keepAlive = true;
|
|
}
|
|
return vnode || (slot && slot[0])
|
|
}
|
|
};
|
|
|
|
var builtInComponents = {
|
|
KeepAlive
|
|
};
|
|
|
|
/* */
|
|
|
|
function initGlobalAPI (Vue) {
|
|
// config
|
|
const configDef = {};
|
|
configDef.get = () => config;
|
|
{
|
|
configDef.set = () => {
|
|
warn(
|
|
'Do not replace the Vue.config object, set individual fields instead.'
|
|
);
|
|
};
|
|
}
|
|
Object.defineProperty(Vue, 'config', configDef);
|
|
|
|
// exposed util methods.
|
|
// NOTE: these are not considered part of the public API - avoid relying on
|
|
// them unless you are aware of the risk.
|
|
Vue.util = {
|
|
warn,
|
|
extend,
|
|
mergeOptions,
|
|
defineReactive: defineReactive$$1
|
|
};
|
|
|
|
Vue.set = set;
|
|
Vue.delete = del;
|
|
Vue.nextTick = nextTick;
|
|
|
|
// 2.6 explicit observable API
|
|
Vue.observable = (obj) => {
|
|
observe(obj);
|
|
return obj
|
|
};
|
|
|
|
Vue.options = Object.create(null);
|
|
ASSET_TYPES.forEach(type => {
|
|
Vue.options[type + 's'] = Object.create(null);
|
|
});
|
|
|
|
// this is used to identify the "base" constructor to extend all plain-object
|
|
// components with in Weex's multi-instance scenarios.
|
|
Vue.options._base = Vue;
|
|
|
|
extend(Vue.options.components, builtInComponents);
|
|
|
|
initUse(Vue);
|
|
initMixin$1(Vue);
|
|
initExtend(Vue);
|
|
initAssetRegisters(Vue);
|
|
}
|
|
|
|
initGlobalAPI(Vue);
|
|
|
|
Object.defineProperty(Vue.prototype, '$isServer', {
|
|
get: isServerRendering
|
|
});
|
|
|
|
Object.defineProperty(Vue.prototype, '$ssrContext', {
|
|
get () {
|
|
/* istanbul ignore next */
|
|
return this.$vnode && this.$vnode.ssrContext
|
|
}
|
|
});
|
|
|
|
// expose FunctionalRenderContext for ssr runtime helper installation
|
|
Object.defineProperty(Vue, 'FunctionalRenderContext', {
|
|
value: FunctionalRenderContext
|
|
});
|
|
|
|
Vue.version = '2.6.11';
|
|
|
|
/* */
|
|
|
|
// these are reserved for web because they are directly compiled away
|
|
// during template compilation
|
|
const isReservedAttr = makeMap('style,class');
|
|
|
|
// attributes that should be using props for binding
|
|
const acceptValue = makeMap('input,textarea,option,select,progress');
|
|
const mustUseProp = (tag, type, attr) => {
|
|
return (
|
|
(attr === 'value' && acceptValue(tag)) && type !== 'button' ||
|
|
(attr === 'selected' && tag === 'option') ||
|
|
(attr === 'checked' && tag === 'input') ||
|
|
(attr === 'muted' && tag === 'video')
|
|
)
|
|
};
|
|
|
|
const isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
|
|
|
|
const isValidContentEditableValue = makeMap('events,caret,typing,plaintext-only');
|
|
|
|
const convertEnumeratedValue = (key, value) => {
|
|
return isFalsyAttrValue(value) || value === 'false'
|
|
? 'false'
|
|
// allow arbitrary string value for contenteditable
|
|
: key === 'contenteditable' && isValidContentEditableValue(value)
|
|
? value
|
|
: 'true'
|
|
};
|
|
|
|
const isBooleanAttr = makeMap(
|
|
'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
|
|
'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
|
|
'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
|
|
'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
|
|
'required,reversed,scoped,seamless,selected,sortable,translate,' +
|
|
'truespeed,typemustmatch,visible'
|
|
);
|
|
|
|
const xlinkNS = 'http://www.w3.org/1999/xlink';
|
|
|
|
const isXlink = (name) => {
|
|
return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'
|
|
};
|
|
|
|
const getXlinkProp = (name) => {
|
|
return isXlink(name) ? name.slice(6, name.length) : ''
|
|
};
|
|
|
|
const isFalsyAttrValue = (val) => {
|
|
return val == null || val === false
|
|
};
|
|
|
|
/* */
|
|
|
|
function genClassForVnode (vnode) {
|
|
let data = vnode.data;
|
|
let parentNode = vnode;
|
|
let childNode = vnode;
|
|
while (isDef(childNode.componentInstance)) {
|
|
childNode = childNode.componentInstance._vnode;
|
|
if (childNode && childNode.data) {
|
|
data = mergeClassData(childNode.data, data);
|
|
}
|
|
}
|
|
while (isDef(parentNode = parentNode.parent)) {
|
|
if (parentNode && parentNode.data) {
|
|
data = mergeClassData(data, parentNode.data);
|
|
}
|
|
}
|
|
return renderClass(data.staticClass, data.class)
|
|
}
|
|
|
|
function mergeClassData (child, parent) {
|
|
return {
|
|
staticClass: concat(child.staticClass, parent.staticClass),
|
|
class: isDef(child.class)
|
|
? [child.class, parent.class]
|
|
: parent.class
|
|
}
|
|
}
|
|
|
|
function renderClass (
|
|
staticClass,
|
|
dynamicClass
|
|
) {
|
|
if (isDef(staticClass) || isDef(dynamicClass)) {
|
|
return concat(staticClass, stringifyClass(dynamicClass))
|
|
}
|
|
/* istanbul ignore next */
|
|
return ''
|
|
}
|
|
|
|
function concat (a, b) {
|
|
return a ? b ? (a + ' ' + b) : a : (b || '')
|
|
}
|
|
|
|
function stringifyClass (value) {
|
|
if (Array.isArray(value)) {
|
|
return stringifyArray(value)
|
|
}
|
|
if (isObject(value)) {
|
|
return stringifyObject(value)
|
|
}
|
|
if (typeof value === 'string') {
|
|
return value
|
|
}
|
|
/* istanbul ignore next */
|
|
return ''
|
|
}
|
|
|
|
function stringifyArray (value) {
|
|
let res = '';
|
|
let stringified;
|
|
for (let i = 0, l = value.length; i < l; i++) {
|
|
if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {
|
|
if (res) res += ' ';
|
|
res += stringified;
|
|
}
|
|
}
|
|
return res
|
|
}
|
|
|
|
function stringifyObject (value) {
|
|
let res = '';
|
|
for (const key in value) {
|
|
if (value[key]) {
|
|
if (res) res += ' ';
|
|
res += key;
|
|
}
|
|
}
|
|
return res
|
|
}
|
|
|
|
/* */
|
|
|
|
const namespaceMap = {
|
|
svg: 'http://www.w3.org/2000/svg',
|
|
math: 'http://www.w3.org/1998/Math/MathML'
|
|
};
|
|
|
|
const isHTMLTag = makeMap(
|
|
'html,body,base,head,link,meta,style,title,' +
|
|
'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
|
|
'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
|
|
'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
|
|
's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
|
|
'embed,object,param,source,canvas,script,noscript,del,ins,' +
|
|
'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
|
|
'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
|
|
'output,progress,select,textarea,' +
|
|
'details,dialog,menu,menuitem,summary,' +
|
|
'content,element,shadow,template,blockquote,iframe,tfoot'
|
|
);
|
|
|
|
// this map is intentionally selective, only covering SVG elements that may
|
|
// contain child elements.
|
|
const isSVG = makeMap(
|
|
'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
|
|
'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
|
|
'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
|
|
true
|
|
);
|
|
|
|
const isPreTag = (tag) => tag === 'pre';
|
|
|
|
const isReservedTag = (tag) => {
|
|
return isHTMLTag(tag) || isSVG(tag)
|
|
};
|
|
|
|
function getTagNamespace (tag) {
|
|
if (isSVG(tag)) {
|
|
return 'svg'
|
|
}
|
|
// basic support for MathML
|
|
// note it doesn't support other MathML elements being component roots
|
|
if (tag === 'math') {
|
|
return 'math'
|
|
}
|
|
}
|
|
|
|
const unknownElementCache = Object.create(null);
|
|
function isUnknownElement (tag) {
|
|
/* istanbul ignore if */
|
|
if (!inBrowser) {
|
|
return true
|
|
}
|
|
if (isReservedTag(tag)) {
|
|
return false
|
|
}
|
|
tag = tag.toLowerCase();
|
|
/* istanbul ignore if */
|
|
if (unknownElementCache[tag] != null) {
|
|
return unknownElementCache[tag]
|
|
}
|
|
const el = document.createElement(tag);
|
|
if (tag.indexOf('-') > -1) {
|
|
// http://stackoverflow.com/a/28210364/1070244
|
|
return (unknownElementCache[tag] = (
|
|
el.constructor === window.HTMLUnknownElement ||
|
|
el.constructor === window.HTMLElement
|
|
))
|
|
} else {
|
|
return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))
|
|
}
|
|
}
|
|
|
|
const isTextInputType = makeMap('text,number,password,search,email,tel,url');
|
|
|
|
/* */
|
|
|
|
/**
|
|
* Query an element selector if it's not an element already.
|
|
*/
|
|
function query (el) {
|
|
if (typeof el === 'string') {
|
|
const selected = document.querySelector(el);
|
|
if (!selected) {
|
|
warn(
|
|
'Cannot find element: ' + el
|
|
);
|
|
return document.createElement('div')
|
|
}
|
|
return selected
|
|
} else {
|
|
return el
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
function createElement$1 (tagName, vnode) {
|
|
const elm = document.createElement(tagName);
|
|
if (tagName !== 'select') {
|
|
return elm
|
|
}
|
|
// false or null will remove the attribute but undefined will not
|
|
if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {
|
|
elm.setAttribute('multiple', 'multiple');
|
|
}
|
|
return elm
|
|
}
|
|
|
|
function createElementNS (namespace, tagName) {
|
|
return document.createElementNS(namespaceMap[namespace], tagName)
|
|
}
|
|
|
|
function createTextNode (text) {
|
|
return document.createTextNode(text)
|
|
}
|
|
|
|
function createComment (text) {
|
|
return document.createComment(text)
|
|
}
|
|
|
|
function insertBefore (parentNode, newNode, referenceNode) {
|
|
parentNode.insertBefore(newNode, referenceNode);
|
|
}
|
|
|
|
function removeChild (node, child) {
|
|
node.removeChild(child);
|
|
}
|
|
|
|
function appendChild (node, child) {
|
|
node.appendChild(child);
|
|
}
|
|
|
|
function parentNode (node) {
|
|
return node.parentNode
|
|
}
|
|
|
|
function nextSibling (node) {
|
|
return node.nextSibling
|
|
}
|
|
|
|
function tagName (node) {
|
|
return node.tagName
|
|
}
|
|
|
|
function setTextContent (node, text) {
|
|
node.textContent = text;
|
|
}
|
|
|
|
function setStyleScope (node, scopeId) {
|
|
node.setAttribute(scopeId, '');
|
|
}
|
|
|
|
var nodeOps = /*#__PURE__*/Object.freeze({
|
|
createElement: createElement$1,
|
|
createElementNS: createElementNS,
|
|
createTextNode: createTextNode,
|
|
createComment: createComment,
|
|
insertBefore: insertBefore,
|
|
removeChild: removeChild,
|
|
appendChild: appendChild,
|
|
parentNode: parentNode,
|
|
nextSibling: nextSibling,
|
|
tagName: tagName,
|
|
setTextContent: setTextContent,
|
|
setStyleScope: setStyleScope
|
|
});
|
|
|
|
/* */
|
|
|
|
var ref = {
|
|
create (_, vnode) {
|
|
registerRef(vnode);
|
|
},
|
|
update (oldVnode, vnode) {
|
|
if (oldVnode.data.ref !== vnode.data.ref) {
|
|
registerRef(oldVnode, true);
|
|
registerRef(vnode);
|
|
}
|
|
},
|
|
destroy (vnode) {
|
|
registerRef(vnode, true);
|
|
}
|
|
};
|
|
|
|
function registerRef (vnode, isRemoval) {
|
|
const key = vnode.data.ref;
|
|
if (!isDef(key)) return
|
|
|
|
const vm = vnode.context;
|
|
const ref = vnode.componentInstance || vnode.elm;
|
|
const refs = vm.$refs;
|
|
if (isRemoval) {
|
|
if (Array.isArray(refs[key])) {
|
|
remove(refs[key], ref);
|
|
} else if (refs[key] === ref) {
|
|
refs[key] = undefined;
|
|
}
|
|
} else {
|
|
if (vnode.data.refInFor) {
|
|
if (!Array.isArray(refs[key])) {
|
|
refs[key] = [ref];
|
|
} else if (refs[key].indexOf(ref) < 0) {
|
|
// $flow-disable-line
|
|
refs[key].push(ref);
|
|
}
|
|
} else {
|
|
refs[key] = ref;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Virtual DOM patching algorithm based on Snabbdom by
|
|
* Simon Friis Vindum (@paldepind)
|
|
* Licensed under the MIT License
|
|
* https://github.com/paldepind/snabbdom/blob/master/LICENSE
|
|
*
|
|
* modified by Evan You (@yyx990803)
|
|
*
|
|
* Not type-checking this because this file is perf-critical and the cost
|
|
* of making flow understand it is not worth it.
|
|
*/
|
|
|
|
const emptyNode = new VNode('', {}, []);
|
|
|
|
const hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
|
|
|
|
function sameVnode (a, b) {
|
|
return (
|
|
a.key === b.key && (
|
|
(
|
|
a.tag === b.tag &&
|
|
a.isComment === b.isComment &&
|
|
isDef(a.data) === isDef(b.data) &&
|
|
sameInputType(a, b)
|
|
) || (
|
|
isTrue(a.isAsyncPlaceholder) &&
|
|
a.asyncFactory === b.asyncFactory &&
|
|
isUndef(b.asyncFactory.error)
|
|
)
|
|
)
|
|
)
|
|
}
|
|
|
|
function sameInputType (a, b) {
|
|
if (a.tag !== 'input') return true
|
|
let i;
|
|
const typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
|
|
const typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
|
|
return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
|
|
}
|
|
|
|
function createKeyToOldIdx (children, beginIdx, endIdx) {
|
|
let i, key;
|
|
const map = {};
|
|
for (i = beginIdx; i <= endIdx; ++i) {
|
|
key = children[i].key;
|
|
if (isDef(key)) map[key] = i;
|
|
}
|
|
return map
|
|
}
|
|
|
|
function createPatchFunction (backend) {
|
|
let i, j;
|
|
const cbs = {};
|
|
|
|
const { modules, nodeOps } = backend;
|
|
|
|
for (i = 0; i < hooks.length; ++i) {
|
|
cbs[hooks[i]] = [];
|
|
for (j = 0; j < modules.length; ++j) {
|
|
if (isDef(modules[j][hooks[i]])) {
|
|
cbs[hooks[i]].push(modules[j][hooks[i]]);
|
|
}
|
|
}
|
|
}
|
|
|
|
function emptyNodeAt (elm) {
|
|
return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm)
|
|
}
|
|
|
|
function createRmCb (childElm, listeners) {
|
|
function remove$$1 () {
|
|
if (--remove$$1.listeners === 0) {
|
|
removeNode(childElm);
|
|
}
|
|
}
|
|
remove$$1.listeners = listeners;
|
|
return remove$$1
|
|
}
|
|
|
|
function removeNode (el) {
|
|
const parent = nodeOps.parentNode(el);
|
|
// element may have already been removed due to v-html / v-text
|
|
if (isDef(parent)) {
|
|
nodeOps.removeChild(parent, el);
|
|
}
|
|
}
|
|
|
|
function isUnknownElement$$1 (vnode, inVPre) {
|
|
return (
|
|
!inVPre &&
|
|
!vnode.ns &&
|
|
!(
|
|
config.ignoredElements.length &&
|
|
config.ignoredElements.some(ignore => {
|
|
return isRegExp(ignore)
|
|
? ignore.test(vnode.tag)
|
|
: ignore === vnode.tag
|
|
})
|
|
) &&
|
|
config.isUnknownElement(vnode.tag)
|
|
)
|
|
}
|
|
|
|
let creatingElmInVPre = 0;
|
|
|
|
function createElm (
|
|
vnode,
|
|
insertedVnodeQueue,
|
|
parentElm,
|
|
refElm,
|
|
nested,
|
|
ownerArray,
|
|
index
|
|
) {
|
|
if (isDef(vnode.elm) && isDef(ownerArray)) {
|
|
// This vnode was used in a previous render!
|
|
// now it's used as a new node, overwriting its elm would cause
|
|
// potential patch errors down the road when it's used as an insertion
|
|
// reference node. Instead, we clone the node on-demand before creating
|
|
// associated DOM element for it.
|
|
vnode = ownerArray[index] = cloneVNode(vnode);
|
|
}
|
|
|
|
vnode.isRootInsert = !nested; // for transition enter check
|
|
if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
|
|
return
|
|
}
|
|
|
|
const data = vnode.data;
|
|
const children = vnode.children;
|
|
const tag = vnode.tag;
|
|
if (isDef(tag)) {
|
|
{
|
|
if (data && data.pre) {
|
|
creatingElmInVPre++;
|
|
}
|
|
if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
|
|
warn(
|
|
'Unknown custom element: <' + tag + '> - did you ' +
|
|
'register the component correctly? For recursive components, ' +
|
|
'make sure to provide the "name" option.',
|
|
vnode.context
|
|
);
|
|
}
|
|
}
|
|
|
|
vnode.elm = vnode.ns
|
|
? nodeOps.createElementNS(vnode.ns, tag)
|
|
: nodeOps.createElement(tag, vnode);
|
|
setScope(vnode);
|
|
|
|
/* istanbul ignore if */
|
|
{
|
|
createChildren(vnode, children, insertedVnodeQueue);
|
|
if (isDef(data)) {
|
|
invokeCreateHooks(vnode, insertedVnodeQueue);
|
|
}
|
|
insert(parentElm, vnode.elm, refElm);
|
|
}
|
|
|
|
if (data && data.pre) {
|
|
creatingElmInVPre--;
|
|
}
|
|
} else if (isTrue(vnode.isComment)) {
|
|
vnode.elm = nodeOps.createComment(vnode.text);
|
|
insert(parentElm, vnode.elm, refElm);
|
|
} else {
|
|
vnode.elm = nodeOps.createTextNode(vnode.text);
|
|
insert(parentElm, vnode.elm, refElm);
|
|
}
|
|
}
|
|
|
|
function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
|
|
let i = vnode.data;
|
|
if (isDef(i)) {
|
|
const isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
|
|
if (isDef(i = i.hook) && isDef(i = i.init)) {
|
|
i(vnode, false /* hydrating */);
|
|
}
|
|
// after calling the init hook, if the vnode is a child component
|
|
// it should've created a child instance and mounted it. the child
|
|
// component also has set the placeholder vnode's elm.
|
|
// in that case we can just return the element and be done.
|
|
if (isDef(vnode.componentInstance)) {
|
|
initComponent(vnode, insertedVnodeQueue);
|
|
insert(parentElm, vnode.elm, refElm);
|
|
if (isTrue(isReactivated)) {
|
|
reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
|
|
}
|
|
return true
|
|
}
|
|
}
|
|
}
|
|
|
|
function initComponent (vnode, insertedVnodeQueue) {
|
|
if (isDef(vnode.data.pendingInsert)) {
|
|
insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
|
|
vnode.data.pendingInsert = null;
|
|
}
|
|
vnode.elm = vnode.componentInstance.$el;
|
|
if (isPatchable(vnode)) {
|
|
invokeCreateHooks(vnode, insertedVnodeQueue);
|
|
setScope(vnode);
|
|
} else {
|
|
// empty component root.
|
|
// skip all element-related modules except for ref (#3455)
|
|
registerRef(vnode);
|
|
// make sure to invoke the insert hook
|
|
insertedVnodeQueue.push(vnode);
|
|
}
|
|
}
|
|
|
|
function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
|
|
let i;
|
|
// hack for #4339: a reactivated component with inner transition
|
|
// does not trigger because the inner node's created hooks are not called
|
|
// again. It's not ideal to involve module-specific logic in here but
|
|
// there doesn't seem to be a better way to do it.
|
|
let innerNode = vnode;
|
|
while (innerNode.componentInstance) {
|
|
innerNode = innerNode.componentInstance._vnode;
|
|
if (isDef(i = innerNode.data) && isDef(i = i.transition)) {
|
|
for (i = 0; i < cbs.activate.length; ++i) {
|
|
cbs.activate[i](emptyNode, innerNode);
|
|
}
|
|
insertedVnodeQueue.push(innerNode);
|
|
break
|
|
}
|
|
}
|
|
// unlike a newly created component,
|
|
// a reactivated keep-alive component doesn't insert itself
|
|
insert(parentElm, vnode.elm, refElm);
|
|
}
|
|
|
|
function insert (parent, elm, ref$$1) {
|
|
if (isDef(parent)) {
|
|
if (isDef(ref$$1)) {
|
|
if (nodeOps.parentNode(ref$$1) === parent) {
|
|
nodeOps.insertBefore(parent, elm, ref$$1);
|
|
}
|
|
} else {
|
|
nodeOps.appendChild(parent, elm);
|
|
}
|
|
}
|
|
}
|
|
|
|
function createChildren (vnode, children, insertedVnodeQueue) {
|
|
if (Array.isArray(children)) {
|
|
{
|
|
checkDuplicateKeys(children);
|
|
}
|
|
for (let i = 0; i < children.length; ++i) {
|
|
createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
|
|
}
|
|
} else if (isPrimitive(vnode.text)) {
|
|
nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
|
|
}
|
|
}
|
|
|
|
function isPatchable (vnode) {
|
|
while (vnode.componentInstance) {
|
|
vnode = vnode.componentInstance._vnode;
|
|
}
|
|
return isDef(vnode.tag)
|
|
}
|
|
|
|
function invokeCreateHooks (vnode, insertedVnodeQueue) {
|
|
for (let i = 0; i < cbs.create.length; ++i) {
|
|
cbs.create[i](emptyNode, vnode);
|
|
}
|
|
i = vnode.data.hook; // Reuse variable
|
|
if (isDef(i)) {
|
|
if (isDef(i.create)) i.create(emptyNode, vnode);
|
|
if (isDef(i.insert)) insertedVnodeQueue.push(vnode);
|
|
}
|
|
}
|
|
|
|
// set scope id attribute for scoped CSS.
|
|
// this is implemented as a special case to avoid the overhead
|
|
// of going through the normal attribute patching process.
|
|
function setScope (vnode) {
|
|
let i;
|
|
if (isDef(i = vnode.fnScopeId)) {
|
|
nodeOps.setStyleScope(vnode.elm, i);
|
|
} else {
|
|
let ancestor = vnode;
|
|
while (ancestor) {
|
|
if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
|
|
nodeOps.setStyleScope(vnode.elm, i);
|
|
}
|
|
ancestor = ancestor.parent;
|
|
}
|
|
}
|
|
// for slot content they should also get the scopeId from the host instance.
|
|
if (isDef(i = activeInstance) &&
|
|
i !== vnode.context &&
|
|
i !== vnode.fnContext &&
|
|
isDef(i = i.$options._scopeId)
|
|
) {
|
|
nodeOps.setStyleScope(vnode.elm, i);
|
|
}
|
|
}
|
|
|
|
function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
|
|
for (; startIdx <= endIdx; ++startIdx) {
|
|
createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
|
|
}
|
|
}
|
|
|
|
function invokeDestroyHook (vnode) {
|
|
let i, j;
|
|
const data = vnode.data;
|
|
if (isDef(data)) {
|
|
if (isDef(i = data.hook) && isDef(i = i.destroy)) i(vnode);
|
|
for (i = 0; i < cbs.destroy.length; ++i) cbs.destroy[i](vnode);
|
|
}
|
|
if (isDef(i = vnode.children)) {
|
|
for (j = 0; j < vnode.children.length; ++j) {
|
|
invokeDestroyHook(vnode.children[j]);
|
|
}
|
|
}
|
|
}
|
|
|
|
function removeVnodes (vnodes, startIdx, endIdx) {
|
|
for (; startIdx <= endIdx; ++startIdx) {
|
|
const ch = vnodes[startIdx];
|
|
if (isDef(ch)) {
|
|
if (isDef(ch.tag)) {
|
|
removeAndInvokeRemoveHook(ch);
|
|
invokeDestroyHook(ch);
|
|
} else { // Text node
|
|
removeNode(ch.elm);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function removeAndInvokeRemoveHook (vnode, rm) {
|
|
if (isDef(rm) || isDef(vnode.data)) {
|
|
let i;
|
|
const listeners = cbs.remove.length + 1;
|
|
if (isDef(rm)) {
|
|
// we have a recursively passed down rm callback
|
|
// increase the listeners count
|
|
rm.listeners += listeners;
|
|
} else {
|
|
// directly removing
|
|
rm = createRmCb(vnode.elm, listeners);
|
|
}
|
|
// recursively invoke hooks on child component root node
|
|
if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {
|
|
removeAndInvokeRemoveHook(i, rm);
|
|
}
|
|
for (i = 0; i < cbs.remove.length; ++i) {
|
|
cbs.remove[i](vnode, rm);
|
|
}
|
|
if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {
|
|
i(vnode, rm);
|
|
} else {
|
|
rm();
|
|
}
|
|
} else {
|
|
removeNode(vnode.elm);
|
|
}
|
|
}
|
|
|
|
function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {
|
|
let oldStartIdx = 0;
|
|
let newStartIdx = 0;
|
|
let oldEndIdx = oldCh.length - 1;
|
|
let oldStartVnode = oldCh[0];
|
|
let oldEndVnode = oldCh[oldEndIdx];
|
|
let newEndIdx = newCh.length - 1;
|
|
let newStartVnode = newCh[0];
|
|
let newEndVnode = newCh[newEndIdx];
|
|
let oldKeyToIdx, idxInOld, vnodeToMove, refElm;
|
|
|
|
// removeOnly is a special flag used only by <transition-group>
|
|
// to ensure removed elements stay in correct relative positions
|
|
// during leaving transitions
|
|
const canMove = !removeOnly;
|
|
|
|
{
|
|
checkDuplicateKeys(newCh);
|
|
}
|
|
|
|
while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
|
|
if (isUndef(oldStartVnode)) {
|
|
oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
|
|
} else if (isUndef(oldEndVnode)) {
|
|
oldEndVnode = oldCh[--oldEndIdx];
|
|
} else if (sameVnode(oldStartVnode, newStartVnode)) {
|
|
patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
|
|
oldStartVnode = oldCh[++oldStartIdx];
|
|
newStartVnode = newCh[++newStartIdx];
|
|
} else if (sameVnode(oldEndVnode, newEndVnode)) {
|
|
patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
|
|
oldEndVnode = oldCh[--oldEndIdx];
|
|
newEndVnode = newCh[--newEndIdx];
|
|
} else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
|
|
patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
|
|
canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
|
|
oldStartVnode = oldCh[++oldStartIdx];
|
|
newEndVnode = newCh[--newEndIdx];
|
|
} else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
|
|
patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
|
|
canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
|
|
oldEndVnode = oldCh[--oldEndIdx];
|
|
newStartVnode = newCh[++newStartIdx];
|
|
} else {
|
|
if (isUndef(oldKeyToIdx)) oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx);
|
|
idxInOld = isDef(newStartVnode.key)
|
|
? oldKeyToIdx[newStartVnode.key]
|
|
: findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
|
|
if (isUndef(idxInOld)) { // New element
|
|
createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
|
|
} else {
|
|
vnodeToMove = oldCh[idxInOld];
|
|
if (sameVnode(vnodeToMove, newStartVnode)) {
|
|
patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
|
|
oldCh[idxInOld] = undefined;
|
|
canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
|
|
} else {
|
|
// same key but different element. treat as new element
|
|
createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
|
|
}
|
|
}
|
|
newStartVnode = newCh[++newStartIdx];
|
|
}
|
|
}
|
|
if (oldStartIdx > oldEndIdx) {
|
|
refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
|
|
addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
|
|
} else if (newStartIdx > newEndIdx) {
|
|
removeVnodes(oldCh, oldStartIdx, oldEndIdx);
|
|
}
|
|
}
|
|
|
|
function checkDuplicateKeys (children) {
|
|
const seenKeys = {};
|
|
for (let i = 0; i < children.length; i++) {
|
|
const vnode = children[i];
|
|
const key = vnode.key;
|
|
if (isDef(key)) {
|
|
if (seenKeys[key]) {
|
|
warn(
|
|
`Duplicate keys detected: '${key}'. This may cause an update error.`,
|
|
vnode.context
|
|
);
|
|
} else {
|
|
seenKeys[key] = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function findIdxInOld (node, oldCh, start, end) {
|
|
for (let i = start; i < end; i++) {
|
|
const c = oldCh[i];
|
|
if (isDef(c) && sameVnode(node, c)) return i
|
|
}
|
|
}
|
|
|
|
function patchVnode (
|
|
oldVnode,
|
|
vnode,
|
|
insertedVnodeQueue,
|
|
ownerArray,
|
|
index,
|
|
removeOnly
|
|
) {
|
|
if (oldVnode === vnode) {
|
|
return
|
|
}
|
|
|
|
if (isDef(vnode.elm) && isDef(ownerArray)) {
|
|
// clone reused vnode
|
|
vnode = ownerArray[index] = cloneVNode(vnode);
|
|
}
|
|
|
|
const elm = vnode.elm = oldVnode.elm;
|
|
|
|
if (isTrue(oldVnode.isAsyncPlaceholder)) {
|
|
if (isDef(vnode.asyncFactory.resolved)) {
|
|
hydrate(oldVnode.elm, vnode, insertedVnodeQueue);
|
|
} else {
|
|
vnode.isAsyncPlaceholder = true;
|
|
}
|
|
return
|
|
}
|
|
|
|
// reuse element for static trees.
|
|
// note we only do this if the vnode is cloned -
|
|
// if the new node is not cloned it means the render functions have been
|
|
// reset by the hot-reload-api and we need to do a proper re-render.
|
|
if (isTrue(vnode.isStatic) &&
|
|
isTrue(oldVnode.isStatic) &&
|
|
vnode.key === oldVnode.key &&
|
|
(isTrue(vnode.isCloned) || isTrue(vnode.isOnce))
|
|
) {
|
|
vnode.componentInstance = oldVnode.componentInstance;
|
|
return
|
|
}
|
|
|
|
let i;
|
|
const data = vnode.data;
|
|
if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {
|
|
i(oldVnode, vnode);
|
|
}
|
|
|
|
const oldCh = oldVnode.children;
|
|
const ch = vnode.children;
|
|
if (isDef(data) && isPatchable(vnode)) {
|
|
for (i = 0; i < cbs.update.length; ++i) cbs.update[i](oldVnode, vnode);
|
|
if (isDef(i = data.hook) && isDef(i = i.update)) i(oldVnode, vnode);
|
|
}
|
|
if (isUndef(vnode.text)) {
|
|
if (isDef(oldCh) && isDef(ch)) {
|
|
if (oldCh !== ch) updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly);
|
|
} else if (isDef(ch)) {
|
|
{
|
|
checkDuplicateKeys(ch);
|
|
}
|
|
if (isDef(oldVnode.text)) nodeOps.setTextContent(elm, '');
|
|
addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
|
|
} else if (isDef(oldCh)) {
|
|
removeVnodes(oldCh, 0, oldCh.length - 1);
|
|
} else if (isDef(oldVnode.text)) {
|
|
nodeOps.setTextContent(elm, '');
|
|
}
|
|
} else if (oldVnode.text !== vnode.text) {
|
|
nodeOps.setTextContent(elm, vnode.text);
|
|
}
|
|
if (isDef(data)) {
|
|
if (isDef(i = data.hook) && isDef(i = i.postpatch)) i(oldVnode, vnode);
|
|
}
|
|
}
|
|
|
|
function invokeInsertHook (vnode, queue, initial) {
|
|
// delay insert hooks for component root nodes, invoke them after the
|
|
// element is really inserted
|
|
if (isTrue(initial) && isDef(vnode.parent)) {
|
|
vnode.parent.data.pendingInsert = queue;
|
|
} else {
|
|
for (let i = 0; i < queue.length; ++i) {
|
|
queue[i].data.hook.insert(queue[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
let hydrationBailed = false;
|
|
// list of modules that can skip create hook during hydration because they
|
|
// are already rendered on the client or has no need for initialization
|
|
// Note: style is excluded because it relies on initial clone for future
|
|
// deep updates (#7063).
|
|
const isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
|
|
|
|
// Note: this is a browser-only function so we can assume elms are DOM nodes.
|
|
function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
|
|
let i;
|
|
const { tag, data, children } = vnode;
|
|
inVPre = inVPre || (data && data.pre);
|
|
vnode.elm = elm;
|
|
|
|
if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
|
|
vnode.isAsyncPlaceholder = true;
|
|
return true
|
|
}
|
|
// assert node match
|
|
{
|
|
if (!assertNodeMatch(elm, vnode, inVPre)) {
|
|
return false
|
|
}
|
|
}
|
|
if (isDef(data)) {
|
|
if (isDef(i = data.hook) && isDef(i = i.init)) i(vnode, true /* hydrating */);
|
|
if (isDef(i = vnode.componentInstance)) {
|
|
// child component. it should have hydrated its own tree.
|
|
initComponent(vnode, insertedVnodeQueue);
|
|
return true
|
|
}
|
|
}
|
|
if (isDef(tag)) {
|
|
if (isDef(children)) {
|
|
// empty element, allow client to pick up and populate children
|
|
if (!elm.hasChildNodes()) {
|
|
createChildren(vnode, children, insertedVnodeQueue);
|
|
} else {
|
|
// v-html and domProps: innerHTML
|
|
if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
|
|
if (i !== elm.innerHTML) {
|
|
/* istanbul ignore if */
|
|
if (typeof console !== 'undefined' &&
|
|
!hydrationBailed
|
|
) {
|
|
hydrationBailed = true;
|
|
console.warn('Parent: ', elm);
|
|
console.warn('server innerHTML: ', i);
|
|
console.warn('client innerHTML: ', elm.innerHTML);
|
|
}
|
|
return false
|
|
}
|
|
} else {
|
|
// iterate and compare children lists
|
|
let childrenMatch = true;
|
|
let childNode = elm.firstChild;
|
|
for (let i = 0; i < children.length; i++) {
|
|
if (!childNode || !hydrate(childNode, children[i], insertedVnodeQueue, inVPre)) {
|
|
childrenMatch = false;
|
|
break
|
|
}
|
|
childNode = childNode.nextSibling;
|
|
}
|
|
// if childNode is not null, it means the actual childNodes list is
|
|
// longer than the virtual children list.
|
|
if (!childrenMatch || childNode) {
|
|
/* istanbul ignore if */
|
|
if (typeof console !== 'undefined' &&
|
|
!hydrationBailed
|
|
) {
|
|
hydrationBailed = true;
|
|
console.warn('Parent: ', elm);
|
|
console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
|
|
}
|
|
return false
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (isDef(data)) {
|
|
let fullInvoke = false;
|
|
for (const key in data) {
|
|
if (!isRenderedModule(key)) {
|
|
fullInvoke = true;
|
|
invokeCreateHooks(vnode, insertedVnodeQueue);
|
|
break
|
|
}
|
|
}
|
|
if (!fullInvoke && data['class']) {
|
|
// ensure collecting deps for deep class bindings for future updates
|
|
traverse(data['class']);
|
|
}
|
|
}
|
|
} else if (elm.data !== vnode.text) {
|
|
elm.data = vnode.text;
|
|
}
|
|
return true
|
|
}
|
|
|
|
function assertNodeMatch (node, vnode, inVPre) {
|
|
if (isDef(vnode.tag)) {
|
|
return vnode.tag.indexOf('vue-component') === 0 || (
|
|
!isUnknownElement$$1(vnode, inVPre) &&
|
|
vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
|
|
)
|
|
} else {
|
|
return node.nodeType === (vnode.isComment ? 8 : 3)
|
|
}
|
|
}
|
|
|
|
return function patch (oldVnode, vnode, hydrating, removeOnly) {
|
|
if (isUndef(vnode)) {
|
|
if (isDef(oldVnode)) invokeDestroyHook(oldVnode);
|
|
return
|
|
}
|
|
|
|
let isInitialPatch = false;
|
|
const insertedVnodeQueue = [];
|
|
|
|
if (isUndef(oldVnode)) {
|
|
// empty mount (likely as component), create new root element
|
|
isInitialPatch = true;
|
|
createElm(vnode, insertedVnodeQueue);
|
|
} else {
|
|
const isRealElement = isDef(oldVnode.nodeType);
|
|
if (!isRealElement && sameVnode(oldVnode, vnode)) {
|
|
// patch existing root node
|
|
patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);
|
|
} else {
|
|
if (isRealElement) {
|
|
// mounting to a real element
|
|
// check if this is server-rendered content and if we can perform
|
|
// a successful hydration.
|
|
if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {
|
|
oldVnode.removeAttribute(SSR_ATTR);
|
|
hydrating = true;
|
|
}
|
|
if (isTrue(hydrating)) {
|
|
if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {
|
|
invokeInsertHook(vnode, insertedVnodeQueue, true);
|
|
return oldVnode
|
|
} else {
|
|
warn(
|
|
'The client-side rendered virtual DOM tree is not matching ' +
|
|
'server-rendered content. This is likely caused by incorrect ' +
|
|
'HTML markup, for example nesting block-level elements inside ' +
|
|
'<p>, or missing <tbody>. Bailing hydration and performing ' +
|
|
'full client-side render.'
|
|
);
|
|
}
|
|
}
|
|
// either not server-rendered, or hydration failed.
|
|
// create an empty node and replace it
|
|
oldVnode = emptyNodeAt(oldVnode);
|
|
}
|
|
|
|
// replacing existing element
|
|
const oldElm = oldVnode.elm;
|
|
const parentElm = nodeOps.parentNode(oldElm);
|
|
|
|
// create new node
|
|
createElm(
|
|
vnode,
|
|
insertedVnodeQueue,
|
|
// extremely rare edge case: do not insert if old element is in a
|
|
// leaving transition. Only happens when combining transition +
|
|
// keep-alive + HOCs. (#4590)
|
|
oldElm._leaveCb ? null : parentElm,
|
|
nodeOps.nextSibling(oldElm)
|
|
);
|
|
|
|
// update parent placeholder node element, recursively
|
|
if (isDef(vnode.parent)) {
|
|
let ancestor = vnode.parent;
|
|
const patchable = isPatchable(vnode);
|
|
while (ancestor) {
|
|
for (let i = 0; i < cbs.destroy.length; ++i) {
|
|
cbs.destroy[i](ancestor);
|
|
}
|
|
ancestor.elm = vnode.elm;
|
|
if (patchable) {
|
|
for (let i = 0; i < cbs.create.length; ++i) {
|
|
cbs.create[i](emptyNode, ancestor);
|
|
}
|
|
// #6513
|
|
// invoke insert hooks that may have been merged by create hooks.
|
|
// e.g. for directives that uses the "inserted" hook.
|
|
const insert = ancestor.data.hook.insert;
|
|
if (insert.merged) {
|
|
// start at index 1 to avoid re-invoking component mounted hook
|
|
for (let i = 1; i < insert.fns.length; i++) {
|
|
insert.fns[i]();
|
|
}
|
|
}
|
|
} else {
|
|
registerRef(ancestor);
|
|
}
|
|
ancestor = ancestor.parent;
|
|
}
|
|
}
|
|
|
|
// destroy old node
|
|
if (isDef(parentElm)) {
|
|
removeVnodes([oldVnode], 0, 0);
|
|
} else if (isDef(oldVnode.tag)) {
|
|
invokeDestroyHook(oldVnode);
|
|
}
|
|
}
|
|
}
|
|
|
|
invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);
|
|
return vnode.elm
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
var directives = {
|
|
create: updateDirectives,
|
|
update: updateDirectives,
|
|
destroy: function unbindDirectives (vnode) {
|
|
updateDirectives(vnode, emptyNode);
|
|
}
|
|
};
|
|
|
|
function updateDirectives (oldVnode, vnode) {
|
|
if (oldVnode.data.directives || vnode.data.directives) {
|
|
_update(oldVnode, vnode);
|
|
}
|
|
}
|
|
|
|
function _update (oldVnode, vnode) {
|
|
const isCreate = oldVnode === emptyNode;
|
|
const isDestroy = vnode === emptyNode;
|
|
const oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);
|
|
const newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);
|
|
|
|
const dirsWithInsert = [];
|
|
const dirsWithPostpatch = [];
|
|
|
|
let key, oldDir, dir;
|
|
for (key in newDirs) {
|
|
oldDir = oldDirs[key];
|
|
dir = newDirs[key];
|
|
if (!oldDir) {
|
|
// new directive, bind
|
|
callHook$1(dir, 'bind', vnode, oldVnode);
|
|
if (dir.def && dir.def.inserted) {
|
|
dirsWithInsert.push(dir);
|
|
}
|
|
} else {
|
|
// existing directive, update
|
|
dir.oldValue = oldDir.value;
|
|
dir.oldArg = oldDir.arg;
|
|
callHook$1(dir, 'update', vnode, oldVnode);
|
|
if (dir.def && dir.def.componentUpdated) {
|
|
dirsWithPostpatch.push(dir);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (dirsWithInsert.length) {
|
|
const callInsert = () => {
|
|
for (let i = 0; i < dirsWithInsert.length; i++) {
|
|
callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);
|
|
}
|
|
};
|
|
if (isCreate) {
|
|
mergeVNodeHook(vnode, 'insert', callInsert);
|
|
} else {
|
|
callInsert();
|
|
}
|
|
}
|
|
|
|
if (dirsWithPostpatch.length) {
|
|
mergeVNodeHook(vnode, 'postpatch', () => {
|
|
for (let i = 0; i < dirsWithPostpatch.length; i++) {
|
|
callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
|
|
}
|
|
});
|
|
}
|
|
|
|
if (!isCreate) {
|
|
for (key in oldDirs) {
|
|
if (!newDirs[key]) {
|
|
// no longer present, unbind
|
|
callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
const emptyModifiers = Object.create(null);
|
|
|
|
function normalizeDirectives$1 (
|
|
dirs,
|
|
vm
|
|
) {
|
|
const res = Object.create(null);
|
|
if (!dirs) {
|
|
// $flow-disable-line
|
|
return res
|
|
}
|
|
let i, dir;
|
|
for (i = 0; i < dirs.length; i++) {
|
|
dir = dirs[i];
|
|
if (!dir.modifiers) {
|
|
// $flow-disable-line
|
|
dir.modifiers = emptyModifiers;
|
|
}
|
|
res[getRawDirName(dir)] = dir;
|
|
dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
|
|
}
|
|
// $flow-disable-line
|
|
return res
|
|
}
|
|
|
|
function getRawDirName (dir) {
|
|
return dir.rawName || `${dir.name}.${Object.keys(dir.modifiers || {}).join('.')}`
|
|
}
|
|
|
|
function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
|
|
const fn = dir.def && dir.def[hook];
|
|
if (fn) {
|
|
try {
|
|
fn(vnode.elm, dir, vnode, oldVnode, isDestroy);
|
|
} catch (e) {
|
|
handleError(e, vnode.context, `directive ${dir.name} ${hook} hook`);
|
|
}
|
|
}
|
|
}
|
|
|
|
var baseModules = [
|
|
ref,
|
|
directives
|
|
];
|
|
|
|
/* */
|
|
|
|
function updateAttrs (oldVnode, vnode) {
|
|
const opts = vnode.componentOptions;
|
|
if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {
|
|
return
|
|
}
|
|
if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {
|
|
return
|
|
}
|
|
let key, cur, old;
|
|
const elm = vnode.elm;
|
|
const oldAttrs = oldVnode.data.attrs || {};
|
|
let attrs = vnode.data.attrs || {};
|
|
// clone observed objects, as the user probably wants to mutate it
|
|
if (isDef(attrs.__ob__)) {
|
|
attrs = vnode.data.attrs = extend({}, attrs);
|
|
}
|
|
|
|
for (key in attrs) {
|
|
cur = attrs[key];
|
|
old = oldAttrs[key];
|
|
if (old !== cur) {
|
|
setAttr(elm, key, cur);
|
|
}
|
|
}
|
|
// #4391: in IE9, setting type can reset value for input[type=radio]
|
|
// #6666: IE/Edge forces progress value down to 1 before setting a max
|
|
/* istanbul ignore if */
|
|
if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
|
|
setAttr(elm, 'value', attrs.value);
|
|
}
|
|
for (key in oldAttrs) {
|
|
if (isUndef(attrs[key])) {
|
|
if (isXlink(key)) {
|
|
elm.removeAttributeNS(xlinkNS, getXlinkProp(key));
|
|
} else if (!isEnumeratedAttr(key)) {
|
|
elm.removeAttribute(key);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function setAttr (el, key, value) {
|
|
if (el.tagName.indexOf('-') > -1) {
|
|
baseSetAttr(el, key, value);
|
|
} else if (isBooleanAttr(key)) {
|
|
// set attribute for blank value
|
|
// e.g. <option disabled>Select one</option>
|
|
if (isFalsyAttrValue(value)) {
|
|
el.removeAttribute(key);
|
|
} else {
|
|
// technically allowfullscreen is a boolean attribute for <iframe>,
|
|
// but Flash expects a value of "true" when used on <embed> tag
|
|
value = key === 'allowfullscreen' && el.tagName === 'EMBED'
|
|
? 'true'
|
|
: key;
|
|
el.setAttribute(key, value);
|
|
}
|
|
} else if (isEnumeratedAttr(key)) {
|
|
el.setAttribute(key, convertEnumeratedValue(key, value));
|
|
} else if (isXlink(key)) {
|
|
if (isFalsyAttrValue(value)) {
|
|
el.removeAttributeNS(xlinkNS, getXlinkProp(key));
|
|
} else {
|
|
el.setAttributeNS(xlinkNS, key, value);
|
|
}
|
|
} else {
|
|
baseSetAttr(el, key, value);
|
|
}
|
|
}
|
|
|
|
function baseSetAttr (el, key, value) {
|
|
if (isFalsyAttrValue(value)) {
|
|
el.removeAttribute(key);
|
|
} else {
|
|
// #7138: IE10 & 11 fires input event when setting placeholder on
|
|
// <textarea>... block the first input event and remove the blocker
|
|
// immediately.
|
|
/* istanbul ignore if */
|
|
if (
|
|
isIE && !isIE9 &&
|
|
el.tagName === 'TEXTAREA' &&
|
|
key === 'placeholder' && value !== '' && !el.__ieph
|
|
) {
|
|
const blocker = e => {
|
|
e.stopImmediatePropagation();
|
|
el.removeEventListener('input', blocker);
|
|
};
|
|
el.addEventListener('input', blocker);
|
|
// $flow-disable-line
|
|
el.__ieph = true; /* IE placeholder patched */
|
|
}
|
|
el.setAttribute(key, value);
|
|
}
|
|
}
|
|
|
|
var attrs = {
|
|
create: updateAttrs,
|
|
update: updateAttrs
|
|
};
|
|
|
|
/* */
|
|
|
|
function updateClass (oldVnode, vnode) {
|
|
const el = vnode.elm;
|
|
const data = vnode.data;
|
|
const oldData = oldVnode.data;
|
|
if (
|
|
isUndef(data.staticClass) &&
|
|
isUndef(data.class) && (
|
|
isUndef(oldData) || (
|
|
isUndef(oldData.staticClass) &&
|
|
isUndef(oldData.class)
|
|
)
|
|
)
|
|
) {
|
|
return
|
|
}
|
|
|
|
let cls = genClassForVnode(vnode);
|
|
|
|
// handle transition classes
|
|
const transitionClass = el._transitionClasses;
|
|
if (isDef(transitionClass)) {
|
|
cls = concat(cls, stringifyClass(transitionClass));
|
|
}
|
|
|
|
// set the class
|
|
if (cls !== el._prevClass) {
|
|
el.setAttribute('class', cls);
|
|
el._prevClass = cls;
|
|
}
|
|
}
|
|
|
|
var klass = {
|
|
create: updateClass,
|
|
update: updateClass
|
|
};
|
|
|
|
/* */
|
|
|
|
const validDivisionCharRE = /[\w).+\-_$\]]/;
|
|
|
|
function parseFilters (exp) {
|
|
let inSingle = false;
|
|
let inDouble = false;
|
|
let inTemplateString = false;
|
|
let inRegex = false;
|
|
let curly = 0;
|
|
let square = 0;
|
|
let paren = 0;
|
|
let lastFilterIndex = 0;
|
|
let c, prev, i, expression, filters;
|
|
|
|
for (i = 0; i < exp.length; i++) {
|
|
prev = c;
|
|
c = exp.charCodeAt(i);
|
|
if (inSingle) {
|
|
if (c === 0x27 && prev !== 0x5C) inSingle = false;
|
|
} else if (inDouble) {
|
|
if (c === 0x22 && prev !== 0x5C) inDouble = false;
|
|
} else if (inTemplateString) {
|
|
if (c === 0x60 && prev !== 0x5C) inTemplateString = false;
|
|
} else if (inRegex) {
|
|
if (c === 0x2f && prev !== 0x5C) inRegex = false;
|
|
} else if (
|
|
c === 0x7C && // pipe
|
|
exp.charCodeAt(i + 1) !== 0x7C &&
|
|
exp.charCodeAt(i - 1) !== 0x7C &&
|
|
!curly && !square && !paren
|
|
) {
|
|
if (expression === undefined) {
|
|
// first filter, end of expression
|
|
lastFilterIndex = i + 1;
|
|
expression = exp.slice(0, i).trim();
|
|
} else {
|
|
pushFilter();
|
|
}
|
|
} else {
|
|
switch (c) {
|
|
case 0x22: inDouble = true; break // "
|
|
case 0x27: inSingle = true; break // '
|
|
case 0x60: inTemplateString = true; break // `
|
|
case 0x28: paren++; break // (
|
|
case 0x29: paren--; break // )
|
|
case 0x5B: square++; break // [
|
|
case 0x5D: square--; break // ]
|
|
case 0x7B: curly++; break // {
|
|
case 0x7D: curly--; break // }
|
|
}
|
|
if (c === 0x2f) { // /
|
|
let j = i - 1;
|
|
let p;
|
|
// find first non-whitespace prev char
|
|
for (; j >= 0; j--) {
|
|
p = exp.charAt(j);
|
|
if (p !== ' ') break
|
|
}
|
|
if (!p || !validDivisionCharRE.test(p)) {
|
|
inRegex = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (expression === undefined) {
|
|
expression = exp.slice(0, i).trim();
|
|
} else if (lastFilterIndex !== 0) {
|
|
pushFilter();
|
|
}
|
|
|
|
function pushFilter () {
|
|
(filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim());
|
|
lastFilterIndex = i + 1;
|
|
}
|
|
|
|
if (filters) {
|
|
for (i = 0; i < filters.length; i++) {
|
|
expression = wrapFilter(expression, filters[i]);
|
|
}
|
|
}
|
|
|
|
return expression
|
|
}
|
|
|
|
function wrapFilter (exp, filter) {
|
|
const i = filter.indexOf('(');
|
|
if (i < 0) {
|
|
// _f: resolveFilter
|
|
return `_f("${filter}")(${exp})`
|
|
} else {
|
|
const name = filter.slice(0, i);
|
|
const args = filter.slice(i + 1);
|
|
return `_f("${name}")(${exp}${args !== ')' ? ',' + args : args}`
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
|
|
|
|
/* eslint-disable no-unused-vars */
|
|
function baseWarn (msg, range) {
|
|
console.error(`[Vue compiler]: ${msg}`);
|
|
}
|
|
/* eslint-enable no-unused-vars */
|
|
|
|
function pluckModuleFunction (
|
|
modules,
|
|
key
|
|
) {
|
|
return modules
|
|
? modules.map(m => m[key]).filter(_ => _)
|
|
: []
|
|
}
|
|
|
|
function addProp (el, name, value, range, dynamic) {
|
|
(el.props || (el.props = [])).push(rangeSetItem({ name, value, dynamic }, range));
|
|
el.plain = false;
|
|
}
|
|
|
|
function addAttr (el, name, value, range, dynamic) {
|
|
const attrs = dynamic
|
|
? (el.dynamicAttrs || (el.dynamicAttrs = []))
|
|
: (el.attrs || (el.attrs = []));
|
|
attrs.push(rangeSetItem({ name, value, dynamic }, range));
|
|
el.plain = false;
|
|
}
|
|
|
|
// add a raw attr (use this in preTransforms)
|
|
function addRawAttr (el, name, value, range) {
|
|
el.attrsMap[name] = value;
|
|
el.attrsList.push(rangeSetItem({ name, value }, range));
|
|
}
|
|
|
|
function addDirective (
|
|
el,
|
|
name,
|
|
rawName,
|
|
value,
|
|
arg,
|
|
isDynamicArg,
|
|
modifiers,
|
|
range
|
|
) {
|
|
(el.directives || (el.directives = [])).push(rangeSetItem({
|
|
name,
|
|
rawName,
|
|
value,
|
|
arg,
|
|
isDynamicArg,
|
|
modifiers
|
|
}, range));
|
|
el.plain = false;
|
|
}
|
|
|
|
function prependModifierMarker (symbol, name, dynamic) {
|
|
return dynamic
|
|
? `_p(${name},"${symbol}")`
|
|
: symbol + name // mark the event as captured
|
|
}
|
|
|
|
function addHandler (
|
|
el,
|
|
name,
|
|
value,
|
|
modifiers,
|
|
important,
|
|
warn,
|
|
range,
|
|
dynamic
|
|
) {
|
|
modifiers = modifiers || emptyObject;
|
|
// warn prevent and passive modifier
|
|
/* istanbul ignore if */
|
|
if (
|
|
warn &&
|
|
modifiers.prevent && modifiers.passive
|
|
) {
|
|
warn(
|
|
'passive and prevent can\'t be used together. ' +
|
|
'Passive handler can\'t prevent default event.',
|
|
range
|
|
);
|
|
}
|
|
|
|
// normalize click.right and click.middle since they don't actually fire
|
|
// this is technically browser-specific, but at least for now browsers are
|
|
// the only target envs that have right/middle clicks.
|
|
if (modifiers.right) {
|
|
if (dynamic) {
|
|
name = `(${name})==='click'?'contextmenu':(${name})`;
|
|
} else if (name === 'click') {
|
|
name = 'contextmenu';
|
|
delete modifiers.right;
|
|
}
|
|
} else if (modifiers.middle) {
|
|
if (dynamic) {
|
|
name = `(${name})==='click'?'mouseup':(${name})`;
|
|
} else if (name === 'click') {
|
|
name = 'mouseup';
|
|
}
|
|
}
|
|
|
|
// check capture modifier
|
|
if (modifiers.capture) {
|
|
delete modifiers.capture;
|
|
name = prependModifierMarker('!', name, dynamic);
|
|
}
|
|
if (modifiers.once) {
|
|
delete modifiers.once;
|
|
name = prependModifierMarker('~', name, dynamic);
|
|
}
|
|
/* istanbul ignore if */
|
|
if (modifiers.passive) {
|
|
delete modifiers.passive;
|
|
name = prependModifierMarker('&', name, dynamic);
|
|
}
|
|
|
|
let events;
|
|
if (modifiers.native) {
|
|
delete modifiers.native;
|
|
events = el.nativeEvents || (el.nativeEvents = {});
|
|
} else {
|
|
events = el.events || (el.events = {});
|
|
}
|
|
|
|
const newHandler = rangeSetItem({ value: value.trim(), dynamic }, range);
|
|
if (modifiers !== emptyObject) {
|
|
newHandler.modifiers = modifiers;
|
|
}
|
|
|
|
const handlers = events[name];
|
|
/* istanbul ignore if */
|
|
if (Array.isArray(handlers)) {
|
|
important ? handlers.unshift(newHandler) : handlers.push(newHandler);
|
|
} else if (handlers) {
|
|
events[name] = important ? [newHandler, handlers] : [handlers, newHandler];
|
|
} else {
|
|
events[name] = newHandler;
|
|
}
|
|
|
|
el.plain = false;
|
|
}
|
|
|
|
function getRawBindingAttr (
|
|
el,
|
|
name
|
|
) {
|
|
return el.rawAttrsMap[':' + name] ||
|
|
el.rawAttrsMap['v-bind:' + name] ||
|
|
el.rawAttrsMap[name]
|
|
}
|
|
|
|
function getBindingAttr (
|
|
el,
|
|
name,
|
|
getStatic
|
|
) {
|
|
const dynamicValue =
|
|
getAndRemoveAttr(el, ':' + name) ||
|
|
getAndRemoveAttr(el, 'v-bind:' + name);
|
|
if (dynamicValue != null) {
|
|
return parseFilters(dynamicValue)
|
|
} else if (getStatic !== false) {
|
|
const staticValue = getAndRemoveAttr(el, name);
|
|
if (staticValue != null) {
|
|
return JSON.stringify(staticValue)
|
|
}
|
|
}
|
|
}
|
|
|
|
// note: this only removes the attr from the Array (attrsList) so that it
|
|
// doesn't get processed by processAttrs.
|
|
// By default it does NOT remove it from the map (attrsMap) because the map is
|
|
// needed during codegen.
|
|
function getAndRemoveAttr (
|
|
el,
|
|
name,
|
|
removeFromMap
|
|
) {
|
|
let val;
|
|
if ((val = el.attrsMap[name]) != null) {
|
|
const list = el.attrsList;
|
|
for (let i = 0, l = list.length; i < l; i++) {
|
|
if (list[i].name === name) {
|
|
list.splice(i, 1);
|
|
break
|
|
}
|
|
}
|
|
}
|
|
if (removeFromMap) {
|
|
delete el.attrsMap[name];
|
|
}
|
|
return val
|
|
}
|
|
|
|
function getAndRemoveAttrByRegex (
|
|
el,
|
|
name
|
|
) {
|
|
const list = el.attrsList;
|
|
for (let i = 0, l = list.length; i < l; i++) {
|
|
const attr = list[i];
|
|
if (name.test(attr.name)) {
|
|
list.splice(i, 1);
|
|
return attr
|
|
}
|
|
}
|
|
}
|
|
|
|
function rangeSetItem (
|
|
item,
|
|
range
|
|
) {
|
|
if (range) {
|
|
if (range.start != null) {
|
|
item.start = range.start;
|
|
}
|
|
if (range.end != null) {
|
|
item.end = range.end;
|
|
}
|
|
}
|
|
return item
|
|
}
|
|
|
|
/* */
|
|
|
|
/**
|
|
* Cross-platform code generation for component v-model
|
|
*/
|
|
function genComponentModel (
|
|
el,
|
|
value,
|
|
modifiers
|
|
) {
|
|
const { number, trim } = modifiers || {};
|
|
|
|
const baseValueExpression = '$$v';
|
|
let valueExpression = baseValueExpression;
|
|
if (trim) {
|
|
valueExpression =
|
|
`(typeof ${baseValueExpression} === 'string'` +
|
|
`? ${baseValueExpression}.trim()` +
|
|
`: ${baseValueExpression})`;
|
|
}
|
|
if (number) {
|
|
valueExpression = `_n(${valueExpression})`;
|
|
}
|
|
const assignment = genAssignmentCode(value, valueExpression);
|
|
|
|
el.model = {
|
|
value: `(${value})`,
|
|
expression: JSON.stringify(value),
|
|
callback: `function (${baseValueExpression}) {${assignment}}`
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Cross-platform codegen helper for generating v-model value assignment code.
|
|
*/
|
|
function genAssignmentCode (
|
|
value,
|
|
assignment
|
|
) {
|
|
const res = parseModel(value);
|
|
if (res.key === null) {
|
|
return `${value}=${assignment}`
|
|
} else {
|
|
return `$set(${res.exp}, ${res.key}, ${assignment})`
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Parse a v-model expression into a base path and a final key segment.
|
|
* Handles both dot-path and possible square brackets.
|
|
*
|
|
* Possible cases:
|
|
*
|
|
* - test
|
|
* - test[key]
|
|
* - test[test1[key]]
|
|
* - test["a"][key]
|
|
* - xxx.test[a[a].test1[key]]
|
|
* - test.xxx.a["asa"][test1[key]]
|
|
*
|
|
*/
|
|
|
|
let len, str, chr, index$1, expressionPos, expressionEndPos;
|
|
|
|
|
|
|
|
function parseModel (val) {
|
|
// Fix https://github.com/vuejs/vue/pull/7730
|
|
// allow v-model="obj.val " (trailing whitespace)
|
|
val = val.trim();
|
|
len = val.length;
|
|
|
|
if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
|
|
index$1 = val.lastIndexOf('.');
|
|
if (index$1 > -1) {
|
|
return {
|
|
exp: val.slice(0, index$1),
|
|
key: '"' + val.slice(index$1 + 1) + '"'
|
|
}
|
|
} else {
|
|
return {
|
|
exp: val,
|
|
key: null
|
|
}
|
|
}
|
|
}
|
|
|
|
str = val;
|
|
index$1 = expressionPos = expressionEndPos = 0;
|
|
|
|
while (!eof()) {
|
|
chr = next();
|
|
/* istanbul ignore if */
|
|
if (isStringStart(chr)) {
|
|
parseString(chr);
|
|
} else if (chr === 0x5B) {
|
|
parseBracket(chr);
|
|
}
|
|
}
|
|
|
|
return {
|
|
exp: val.slice(0, expressionPos),
|
|
key: val.slice(expressionPos + 1, expressionEndPos)
|
|
}
|
|
}
|
|
|
|
function next () {
|
|
return str.charCodeAt(++index$1)
|
|
}
|
|
|
|
function eof () {
|
|
return index$1 >= len
|
|
}
|
|
|
|
function isStringStart (chr) {
|
|
return chr === 0x22 || chr === 0x27
|
|
}
|
|
|
|
function parseBracket (chr) {
|
|
let inBracket = 1;
|
|
expressionPos = index$1;
|
|
while (!eof()) {
|
|
chr = next();
|
|
if (isStringStart(chr)) {
|
|
parseString(chr);
|
|
continue
|
|
}
|
|
if (chr === 0x5B) inBracket++;
|
|
if (chr === 0x5D) inBracket--;
|
|
if (inBracket === 0) {
|
|
expressionEndPos = index$1;
|
|
break
|
|
}
|
|
}
|
|
}
|
|
|
|
function parseString (chr) {
|
|
const stringQuote = chr;
|
|
while (!eof()) {
|
|
chr = next();
|
|
if (chr === stringQuote) {
|
|
break
|
|
}
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
let warn$1;
|
|
|
|
// in some cases, the event used has to be determined at runtime
|
|
// so we used some reserved tokens during compile.
|
|
const RANGE_TOKEN = '__r';
|
|
const CHECKBOX_RADIO_TOKEN = '__c';
|
|
|
|
function model (
|
|
el,
|
|
dir,
|
|
_warn
|
|
) {
|
|
warn$1 = _warn;
|
|
const value = dir.value;
|
|
const modifiers = dir.modifiers;
|
|
const tag = el.tag;
|
|
const type = el.attrsMap.type;
|
|
|
|
{
|
|
// inputs with type="file" are read only and setting the input's
|
|
// value will throw an error.
|
|
if (tag === 'input' && type === 'file') {
|
|
warn$1(
|
|
`<${el.tag} v-model="${value}" type="file">:\n` +
|
|
`File inputs are read only. Use a v-on:change listener instead.`,
|
|
el.rawAttrsMap['v-model']
|
|
);
|
|
}
|
|
}
|
|
|
|
if (el.component) {
|
|
genComponentModel(el, value, modifiers);
|
|
// component v-model doesn't need extra runtime
|
|
return false
|
|
} else if (tag === 'select') {
|
|
genSelect(el, value, modifiers);
|
|
} else if (tag === 'input' && type === 'checkbox') {
|
|
genCheckboxModel(el, value, modifiers);
|
|
} else if (tag === 'input' && type === 'radio') {
|
|
genRadioModel(el, value, modifiers);
|
|
} else if (tag === 'input' || tag === 'textarea') {
|
|
genDefaultModel(el, value, modifiers);
|
|
} else if (!config.isReservedTag(tag)) {
|
|
genComponentModel(el, value, modifiers);
|
|
// component v-model doesn't need extra runtime
|
|
return false
|
|
} else {
|
|
warn$1(
|
|
`<${el.tag} v-model="${value}">: ` +
|
|
`v-model is not supported on this element type. ` +
|
|
'If you are working with contenteditable, it\'s recommended to ' +
|
|
'wrap a library dedicated for that purpose inside a custom component.',
|
|
el.rawAttrsMap['v-model']
|
|
);
|
|
}
|
|
|
|
// ensure runtime directive metadata
|
|
return true
|
|
}
|
|
|
|
function genCheckboxModel (
|
|
el,
|
|
value,
|
|
modifiers
|
|
) {
|
|
const number = modifiers && modifiers.number;
|
|
const valueBinding = getBindingAttr(el, 'value') || 'null';
|
|
const trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
|
|
const falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
|
|
addProp(el, 'checked',
|
|
`Array.isArray(${value})` +
|
|
`?_i(${value},${valueBinding})>-1` + (
|
|
trueValueBinding === 'true'
|
|
? `:(${value})`
|
|
: `:_q(${value},${trueValueBinding})`
|
|
)
|
|
);
|
|
addHandler(el, 'change',
|
|
`var $$a=${value},` +
|
|
'$$el=$event.target,' +
|
|
`$$c=$$el.checked?(${trueValueBinding}):(${falseValueBinding});` +
|
|
'if(Array.isArray($$a)){' +
|
|
`var $$v=${number ? '_n(' + valueBinding + ')' : valueBinding},` +
|
|
'$$i=_i($$a,$$v);' +
|
|
`if($$el.checked){$$i<0&&(${genAssignmentCode(value, '$$a.concat([$$v])')})}` +
|
|
`else{$$i>-1&&(${genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')})}` +
|
|
`}else{${genAssignmentCode(value, '$$c')}}`,
|
|
null, true
|
|
);
|
|
}
|
|
|
|
function genRadioModel (
|
|
el,
|
|
value,
|
|
modifiers
|
|
) {
|
|
const number = modifiers && modifiers.number;
|
|
let valueBinding = getBindingAttr(el, 'value') || 'null';
|
|
valueBinding = number ? `_n(${valueBinding})` : valueBinding;
|
|
addProp(el, 'checked', `_q(${value},${valueBinding})`);
|
|
addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
|
|
}
|
|
|
|
function genSelect (
|
|
el,
|
|
value,
|
|
modifiers
|
|
) {
|
|
const number = modifiers && modifiers.number;
|
|
const selectedVal = `Array.prototype.filter` +
|
|
`.call($event.target.options,function(o){return o.selected})` +
|
|
`.map(function(o){var val = "_value" in o ? o._value : o.value;` +
|
|
`return ${number ? '_n(val)' : 'val'}})`;
|
|
|
|
const assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
|
|
let code = `var $$selectedVal = ${selectedVal};`;
|
|
code = `${code} ${genAssignmentCode(value, assignment)}`;
|
|
addHandler(el, 'change', code, null, true);
|
|
}
|
|
|
|
function genDefaultModel (
|
|
el,
|
|
value,
|
|
modifiers
|
|
) {
|
|
const type = el.attrsMap.type;
|
|
|
|
// warn if v-bind:value conflicts with v-model
|
|
// except for inputs with v-bind:type
|
|
{
|
|
const value = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
|
|
const typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
|
|
if (value && !typeBinding) {
|
|
const binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
|
|
warn$1(
|
|
`${binding}="${value}" conflicts with v-model on the same element ` +
|
|
'because the latter already expands to a value binding internally',
|
|
el.rawAttrsMap[binding]
|
|
);
|
|
}
|
|
}
|
|
|
|
const { lazy, number, trim } = modifiers || {};
|
|
const needCompositionGuard = !lazy && type !== 'range';
|
|
const event = lazy
|
|
? 'change'
|
|
: type === 'range'
|
|
? RANGE_TOKEN
|
|
: 'input';
|
|
|
|
let valueExpression = '$event.target.value';
|
|
if (trim) {
|
|
valueExpression = `$event.target.value.trim()`;
|
|
}
|
|
if (number) {
|
|
valueExpression = `_n(${valueExpression})`;
|
|
}
|
|
|
|
let code = genAssignmentCode(value, valueExpression);
|
|
if (needCompositionGuard) {
|
|
code = `if($event.target.composing)return;${code}`;
|
|
}
|
|
|
|
addProp(el, 'value', `(${value})`);
|
|
addHandler(el, event, code, null, true);
|
|
if (trim || number) {
|
|
addHandler(el, 'blur', '$forceUpdate()');
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
// normalize v-model event tokens that can only be determined at runtime.
|
|
// it's important to place the event as the first in the array because
|
|
// the whole point is ensuring the v-model callback gets called before
|
|
// user-attached handlers.
|
|
function normalizeEvents (on) {
|
|
/* istanbul ignore if */
|
|
if (isDef(on[RANGE_TOKEN])) {
|
|
// IE input[type=range] only supports `change` event
|
|
const event = isIE ? 'change' : 'input';
|
|
on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
|
|
delete on[RANGE_TOKEN];
|
|
}
|
|
// This was originally intended to fix #4521 but no longer necessary
|
|
// after 2.5. Keeping it for backwards compat with generated code from < 2.4
|
|
/* istanbul ignore if */
|
|
if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
|
|
on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
|
|
delete on[CHECKBOX_RADIO_TOKEN];
|
|
}
|
|
}
|
|
|
|
let target$1;
|
|
|
|
function createOnceHandler$1 (event, handler, capture) {
|
|
const _target = target$1; // save current target element in closure
|
|
return function onceHandler () {
|
|
const res = handler.apply(null, arguments);
|
|
if (res !== null) {
|
|
remove$2(event, onceHandler, capture, _target);
|
|
}
|
|
}
|
|
}
|
|
|
|
// #9446: Firefox <= 53 (in particular, ESR 52) has incorrect Event.timeStamp
|
|
// implementation and does not fire microtasks in between event propagation, so
|
|
// safe to exclude.
|
|
const useMicrotaskFix = isUsingMicroTask && !(isFF && Number(isFF[1]) <= 53);
|
|
|
|
function add$1 (
|
|
name,
|
|
handler,
|
|
capture,
|
|
passive
|
|
) {
|
|
// async edge case #6566: inner click event triggers patch, event handler
|
|
// attached to outer element during patch, and triggered again. This
|
|
// happens because browsers fire microtask ticks between event propagation.
|
|
// the solution is simple: we save the timestamp when a handler is attached,
|
|
// and the handler would only fire if the event passed to it was fired
|
|
// AFTER it was attached.
|
|
if (useMicrotaskFix) {
|
|
const attachedTimestamp = currentFlushTimestamp;
|
|
const original = handler;
|
|
handler = original._wrapper = function (e) {
|
|
if (
|
|
// no bubbling, should always fire.
|
|
// this is just a safety net in case event.timeStamp is unreliable in
|
|
// certain weird environments...
|
|
e.target === e.currentTarget ||
|
|
// event is fired after handler attachment
|
|
e.timeStamp >= attachedTimestamp ||
|
|
// bail for environments that have buggy event.timeStamp implementations
|
|
// #9462 iOS 9 bug: event.timeStamp is 0 after history.pushState
|
|
// #9681 QtWebEngine event.timeStamp is negative value
|
|
e.timeStamp <= 0 ||
|
|
// #9448 bail if event is fired in another document in a multi-page
|
|
// electron/nw.js app, since event.timeStamp will be using a different
|
|
// starting reference
|
|
e.target.ownerDocument !== document
|
|
) {
|
|
return original.apply(this, arguments)
|
|
}
|
|
};
|
|
}
|
|
target$1.addEventListener(
|
|
name,
|
|
handler,
|
|
supportsPassive
|
|
? { capture, passive }
|
|
: capture
|
|
);
|
|
}
|
|
|
|
function remove$2 (
|
|
name,
|
|
handler,
|
|
capture,
|
|
_target
|
|
) {
|
|
(_target || target$1).removeEventListener(
|
|
name,
|
|
handler._wrapper || handler,
|
|
capture
|
|
);
|
|
}
|
|
|
|
function updateDOMListeners (oldVnode, vnode) {
|
|
if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) {
|
|
return
|
|
}
|
|
const on = vnode.data.on || {};
|
|
const oldOn = oldVnode.data.on || {};
|
|
target$1 = vnode.elm;
|
|
normalizeEvents(on);
|
|
updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);
|
|
target$1 = undefined;
|
|
}
|
|
|
|
var events = {
|
|
create: updateDOMListeners,
|
|
update: updateDOMListeners
|
|
};
|
|
|
|
/* */
|
|
|
|
let svgContainer;
|
|
|
|
function updateDOMProps (oldVnode, vnode) {
|
|
if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
|
|
return
|
|
}
|
|
let key, cur;
|
|
const elm = vnode.elm;
|
|
const oldProps = oldVnode.data.domProps || {};
|
|
let props = vnode.data.domProps || {};
|
|
// clone observed objects, as the user probably wants to mutate it
|
|
if (isDef(props.__ob__)) {
|
|
props = vnode.data.domProps = extend({}, props);
|
|
}
|
|
|
|
for (key in oldProps) {
|
|
if (!(key in props)) {
|
|
elm[key] = '';
|
|
}
|
|
}
|
|
|
|
for (key in props) {
|
|
cur = props[key];
|
|
// ignore children if the node has textContent or innerHTML,
|
|
// as these will throw away existing DOM nodes and cause removal errors
|
|
// on subsequent patches (#3360)
|
|
if (key === 'textContent' || key === 'innerHTML') {
|
|
if (vnode.children) vnode.children.length = 0;
|
|
if (cur === oldProps[key]) continue
|
|
// #6601 work around Chrome version <= 55 bug where single textNode
|
|
// replaced by innerHTML/textContent retains its parentNode property
|
|
if (elm.childNodes.length === 1) {
|
|
elm.removeChild(elm.childNodes[0]);
|
|
}
|
|
}
|
|
|
|
if (key === 'value' && elm.tagName !== 'PROGRESS') {
|
|
// store value as _value as well since
|
|
// non-string values will be stringified
|
|
elm._value = cur;
|
|
// avoid resetting cursor position when value is the same
|
|
const strCur = isUndef(cur) ? '' : String(cur);
|
|
if (shouldUpdateValue(elm, strCur)) {
|
|
elm.value = strCur;
|
|
}
|
|
} else if (key === 'innerHTML' && isSVG(elm.tagName) && isUndef(elm.innerHTML)) {
|
|
// IE doesn't support innerHTML for SVG elements
|
|
svgContainer = svgContainer || document.createElement('div');
|
|
svgContainer.innerHTML = `<svg>${cur}</svg>`;
|
|
const svg = svgContainer.firstChild;
|
|
while (elm.firstChild) {
|
|
elm.removeChild(elm.firstChild);
|
|
}
|
|
while (svg.firstChild) {
|
|
elm.appendChild(svg.firstChild);
|
|
}
|
|
} else if (
|
|
// skip the update if old and new VDOM state is the same.
|
|
// `value` is handled separately because the DOM value may be temporarily
|
|
// out of sync with VDOM state due to focus, composition and modifiers.
|
|
// This #4521 by skipping the unnecesarry `checked` update.
|
|
cur !== oldProps[key]
|
|
) {
|
|
// some property updates can throw
|
|
// e.g. `value` on <progress> w/ non-finite value
|
|
try {
|
|
elm[key] = cur;
|
|
} catch (e) {}
|
|
}
|
|
}
|
|
}
|
|
|
|
// check platforms/web/util/attrs.js acceptValue
|
|
|
|
|
|
function shouldUpdateValue (elm, checkVal) {
|
|
return (!elm.composing && (
|
|
elm.tagName === 'OPTION' ||
|
|
isNotInFocusAndDirty(elm, checkVal) ||
|
|
isDirtyWithModifiers(elm, checkVal)
|
|
))
|
|
}
|
|
|
|
function isNotInFocusAndDirty (elm, checkVal) {
|
|
// return true when textbox (.number and .trim) loses focus and its value is
|
|
// not equal to the updated value
|
|
let notInFocus = true;
|
|
// #6157
|
|
// work around IE bug when accessing document.activeElement in an iframe
|
|
try { notInFocus = document.activeElement !== elm; } catch (e) {}
|
|
return notInFocus && elm.value !== checkVal
|
|
}
|
|
|
|
function isDirtyWithModifiers (elm, newVal) {
|
|
const value = elm.value;
|
|
const modifiers = elm._vModifiers; // injected by v-model runtime
|
|
if (isDef(modifiers)) {
|
|
if (modifiers.number) {
|
|
return toNumber(value) !== toNumber(newVal)
|
|
}
|
|
if (modifiers.trim) {
|
|
return value.trim() !== newVal.trim()
|
|
}
|
|
}
|
|
return value !== newVal
|
|
}
|
|
|
|
var domProps = {
|
|
create: updateDOMProps,
|
|
update: updateDOMProps
|
|
};
|
|
|
|
/* */
|
|
|
|
const parseStyleText = cached(function (cssText) {
|
|
const res = {};
|
|
const listDelimiter = /;(?![^(]*\))/g;
|
|
const propertyDelimiter = /:(.+)/;
|
|
cssText.split(listDelimiter).forEach(function (item) {
|
|
if (item) {
|
|
const tmp = item.split(propertyDelimiter);
|
|
tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
|
|
}
|
|
});
|
|
return res
|
|
});
|
|
|
|
// merge static and dynamic style data on the same vnode
|
|
function normalizeStyleData (data) {
|
|
const style = normalizeStyleBinding(data.style);
|
|
// static style is pre-processed into an object during compilation
|
|
// and is always a fresh object, so it's safe to merge into it
|
|
return data.staticStyle
|
|
? extend(data.staticStyle, style)
|
|
: style
|
|
}
|
|
|
|
// normalize possible array / string values into Object
|
|
function normalizeStyleBinding (bindingStyle) {
|
|
if (Array.isArray(bindingStyle)) {
|
|
return toObject(bindingStyle)
|
|
}
|
|
if (typeof bindingStyle === 'string') {
|
|
return parseStyleText(bindingStyle)
|
|
}
|
|
return bindingStyle
|
|
}
|
|
|
|
/**
|
|
* parent component style should be after child's
|
|
* so that parent component's style could override it
|
|
*/
|
|
function getStyle (vnode, checkChild) {
|
|
const res = {};
|
|
let styleData;
|
|
|
|
if (checkChild) {
|
|
let childNode = vnode;
|
|
while (childNode.componentInstance) {
|
|
childNode = childNode.componentInstance._vnode;
|
|
if (
|
|
childNode && childNode.data &&
|
|
(styleData = normalizeStyleData(childNode.data))
|
|
) {
|
|
extend(res, styleData);
|
|
}
|
|
}
|
|
}
|
|
|
|
if ((styleData = normalizeStyleData(vnode.data))) {
|
|
extend(res, styleData);
|
|
}
|
|
|
|
let parentNode = vnode;
|
|
while ((parentNode = parentNode.parent)) {
|
|
if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {
|
|
extend(res, styleData);
|
|
}
|
|
}
|
|
return res
|
|
}
|
|
|
|
/* */
|
|
|
|
const cssVarRE = /^--/;
|
|
const importantRE = /\s*!important$/;
|
|
const setProp = (el, name, val) => {
|
|
/* istanbul ignore if */
|
|
if (cssVarRE.test(name)) {
|
|
el.style.setProperty(name, val);
|
|
} else if (importantRE.test(val)) {
|
|
el.style.setProperty(hyphenate(name), val.replace(importantRE, ''), 'important');
|
|
} else {
|
|
const normalizedName = normalize(name);
|
|
if (Array.isArray(val)) {
|
|
// Support values array created by autoprefixer, e.g.
|
|
// {display: ["-webkit-box", "-ms-flexbox", "flex"]}
|
|
// Set them one by one, and the browser will only set those it can recognize
|
|
for (let i = 0, len = val.length; i < len; i++) {
|
|
el.style[normalizedName] = val[i];
|
|
}
|
|
} else {
|
|
el.style[normalizedName] = val;
|
|
}
|
|
}
|
|
};
|
|
|
|
const vendorNames = ['Webkit', 'Moz', 'ms'];
|
|
|
|
let emptyStyle;
|
|
const normalize = cached(function (prop) {
|
|
emptyStyle = emptyStyle || document.createElement('div').style;
|
|
prop = camelize(prop);
|
|
if (prop !== 'filter' && (prop in emptyStyle)) {
|
|
return prop
|
|
}
|
|
const capName = prop.charAt(0).toUpperCase() + prop.slice(1);
|
|
for (let i = 0; i < vendorNames.length; i++) {
|
|
const name = vendorNames[i] + capName;
|
|
if (name in emptyStyle) {
|
|
return name
|
|
}
|
|
}
|
|
});
|
|
|
|
function updateStyle (oldVnode, vnode) {
|
|
const data = vnode.data;
|
|
const oldData = oldVnode.data;
|
|
|
|
if (isUndef(data.staticStyle) && isUndef(data.style) &&
|
|
isUndef(oldData.staticStyle) && isUndef(oldData.style)
|
|
) {
|
|
return
|
|
}
|
|
|
|
let cur, name;
|
|
const el = vnode.elm;
|
|
const oldStaticStyle = oldData.staticStyle;
|
|
const oldStyleBinding = oldData.normalizedStyle || oldData.style || {};
|
|
|
|
// if static style exists, stylebinding already merged into it when doing normalizeStyleData
|
|
const oldStyle = oldStaticStyle || oldStyleBinding;
|
|
|
|
const style = normalizeStyleBinding(vnode.data.style) || {};
|
|
|
|
// store normalized style under a different key for next diff
|
|
// make sure to clone it if it's reactive, since the user likely wants
|
|
// to mutate it.
|
|
vnode.data.normalizedStyle = isDef(style.__ob__)
|
|
? extend({}, style)
|
|
: style;
|
|
|
|
const newStyle = getStyle(vnode, true);
|
|
|
|
for (name in oldStyle) {
|
|
if (isUndef(newStyle[name])) {
|
|
setProp(el, name, '');
|
|
}
|
|
}
|
|
for (name in newStyle) {
|
|
cur = newStyle[name];
|
|
if (cur !== oldStyle[name]) {
|
|
// ie9 setting to null has no effect, must use empty string
|
|
setProp(el, name, cur == null ? '' : cur);
|
|
}
|
|
}
|
|
}
|
|
|
|
var style = {
|
|
create: updateStyle,
|
|
update: updateStyle
|
|
};
|
|
|
|
/* */
|
|
|
|
const whitespaceRE = /\s+/;
|
|
|
|
/**
|
|
* Add class with compatibility for SVG since classList is not supported on
|
|
* SVG elements in IE
|
|
*/
|
|
function addClass (el, cls) {
|
|
/* istanbul ignore if */
|
|
if (!cls || !(cls = cls.trim())) {
|
|
return
|
|
}
|
|
|
|
/* istanbul ignore else */
|
|
if (el.classList) {
|
|
if (cls.indexOf(' ') > -1) {
|
|
cls.split(whitespaceRE).forEach(c => el.classList.add(c));
|
|
} else {
|
|
el.classList.add(cls);
|
|
}
|
|
} else {
|
|
const cur = ` ${el.getAttribute('class') || ''} `;
|
|
if (cur.indexOf(' ' + cls + ' ') < 0) {
|
|
el.setAttribute('class', (cur + cls).trim());
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Remove class with compatibility for SVG since classList is not supported on
|
|
* SVG elements in IE
|
|
*/
|
|
function removeClass (el, cls) {
|
|
/* istanbul ignore if */
|
|
if (!cls || !(cls = cls.trim())) {
|
|
return
|
|
}
|
|
|
|
/* istanbul ignore else */
|
|
if (el.classList) {
|
|
if (cls.indexOf(' ') > -1) {
|
|
cls.split(whitespaceRE).forEach(c => el.classList.remove(c));
|
|
} else {
|
|
el.classList.remove(cls);
|
|
}
|
|
if (!el.classList.length) {
|
|
el.removeAttribute('class');
|
|
}
|
|
} else {
|
|
let cur = ` ${el.getAttribute('class') || ''} `;
|
|
const tar = ' ' + cls + ' ';
|
|
while (cur.indexOf(tar) >= 0) {
|
|
cur = cur.replace(tar, ' ');
|
|
}
|
|
cur = cur.trim();
|
|
if (cur) {
|
|
el.setAttribute('class', cur);
|
|
} else {
|
|
el.removeAttribute('class');
|
|
}
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
function resolveTransition (def$$1) {
|
|
if (!def$$1) {
|
|
return
|
|
}
|
|
/* istanbul ignore else */
|
|
if (typeof def$$1 === 'object') {
|
|
const res = {};
|
|
if (def$$1.css !== false) {
|
|
extend(res, autoCssTransition(def$$1.name || 'v'));
|
|
}
|
|
extend(res, def$$1);
|
|
return res
|
|
} else if (typeof def$$1 === 'string') {
|
|
return autoCssTransition(def$$1)
|
|
}
|
|
}
|
|
|
|
const autoCssTransition = cached(name => {
|
|
return {
|
|
enterClass: `${name}-enter`,
|
|
enterToClass: `${name}-enter-to`,
|
|
enterActiveClass: `${name}-enter-active`,
|
|
leaveClass: `${name}-leave`,
|
|
leaveToClass: `${name}-leave-to`,
|
|
leaveActiveClass: `${name}-leave-active`
|
|
}
|
|
});
|
|
|
|
const hasTransition = inBrowser && !isIE9;
|
|
const TRANSITION = 'transition';
|
|
const ANIMATION = 'animation';
|
|
|
|
// Transition property/event sniffing
|
|
let transitionProp = 'transition';
|
|
let transitionEndEvent = 'transitionend';
|
|
let animationProp = 'animation';
|
|
let animationEndEvent = 'animationend';
|
|
if (hasTransition) {
|
|
/* istanbul ignore if */
|
|
if (window.ontransitionend === undefined &&
|
|
window.onwebkittransitionend !== undefined
|
|
) {
|
|
transitionProp = 'WebkitTransition';
|
|
transitionEndEvent = 'webkitTransitionEnd';
|
|
}
|
|
if (window.onanimationend === undefined &&
|
|
window.onwebkitanimationend !== undefined
|
|
) {
|
|
animationProp = 'WebkitAnimation';
|
|
animationEndEvent = 'webkitAnimationEnd';
|
|
}
|
|
}
|
|
|
|
// binding to window is necessary to make hot reload work in IE in strict mode
|
|
const raf = inBrowser
|
|
? window.requestAnimationFrame
|
|
? window.requestAnimationFrame.bind(window)
|
|
: setTimeout
|
|
: /* istanbul ignore next */ fn => fn();
|
|
|
|
function nextFrame (fn) {
|
|
raf(() => {
|
|
raf(fn);
|
|
});
|
|
}
|
|
|
|
function addTransitionClass (el, cls) {
|
|
const transitionClasses = el._transitionClasses || (el._transitionClasses = []);
|
|
if (transitionClasses.indexOf(cls) < 0) {
|
|
transitionClasses.push(cls);
|
|
addClass(el, cls);
|
|
}
|
|
}
|
|
|
|
function removeTransitionClass (el, cls) {
|
|
if (el._transitionClasses) {
|
|
remove(el._transitionClasses, cls);
|
|
}
|
|
removeClass(el, cls);
|
|
}
|
|
|
|
function whenTransitionEnds (
|
|
el,
|
|
expectedType,
|
|
cb
|
|
) {
|
|
const { type, timeout, propCount } = getTransitionInfo(el, expectedType);
|
|
if (!type) return cb()
|
|
const event = type === TRANSITION ? transitionEndEvent : animationEndEvent;
|
|
let ended = 0;
|
|
const end = () => {
|
|
el.removeEventListener(event, onEnd);
|
|
cb();
|
|
};
|
|
const onEnd = e => {
|
|
if (e.target === el) {
|
|
if (++ended >= propCount) {
|
|
end();
|
|
}
|
|
}
|
|
};
|
|
setTimeout(() => {
|
|
if (ended < propCount) {
|
|
end();
|
|
}
|
|
}, timeout + 1);
|
|
el.addEventListener(event, onEnd);
|
|
}
|
|
|
|
const transformRE = /\b(transform|all)(,|$)/;
|
|
|
|
function getTransitionInfo (el, expectedType) {
|
|
const styles = window.getComputedStyle(el);
|
|
// JSDOM may return undefined for transition properties
|
|
const transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');
|
|
const transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');
|
|
const transitionTimeout = getTimeout(transitionDelays, transitionDurations);
|
|
const animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');
|
|
const animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');
|
|
const animationTimeout = getTimeout(animationDelays, animationDurations);
|
|
|
|
let type;
|
|
let timeout = 0;
|
|
let propCount = 0;
|
|
/* istanbul ignore if */
|
|
if (expectedType === TRANSITION) {
|
|
if (transitionTimeout > 0) {
|
|
type = TRANSITION;
|
|
timeout = transitionTimeout;
|
|
propCount = transitionDurations.length;
|
|
}
|
|
} else if (expectedType === ANIMATION) {
|
|
if (animationTimeout > 0) {
|
|
type = ANIMATION;
|
|
timeout = animationTimeout;
|
|
propCount = animationDurations.length;
|
|
}
|
|
} else {
|
|
timeout = Math.max(transitionTimeout, animationTimeout);
|
|
type = timeout > 0
|
|
? transitionTimeout > animationTimeout
|
|
? TRANSITION
|
|
: ANIMATION
|
|
: null;
|
|
propCount = type
|
|
? type === TRANSITION
|
|
? transitionDurations.length
|
|
: animationDurations.length
|
|
: 0;
|
|
}
|
|
const hasTransform =
|
|
type === TRANSITION &&
|
|
transformRE.test(styles[transitionProp + 'Property']);
|
|
return {
|
|
type,
|
|
timeout,
|
|
propCount,
|
|
hasTransform
|
|
}
|
|
}
|
|
|
|
function getTimeout (delays, durations) {
|
|
/* istanbul ignore next */
|
|
while (delays.length < durations.length) {
|
|
delays = delays.concat(delays);
|
|
}
|
|
|
|
return Math.max.apply(null, durations.map((d, i) => {
|
|
return toMs(d) + toMs(delays[i])
|
|
}))
|
|
}
|
|
|
|
// Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
|
|
// in a locale-dependent way, using a comma instead of a dot.
|
|
// If comma is not replaced with a dot, the input will be rounded down (i.e. acting
|
|
// as a floor function) causing unexpected behaviors
|
|
function toMs (s) {
|
|
return Number(s.slice(0, -1).replace(',', '.')) * 1000
|
|
}
|
|
|
|
/* */
|
|
|
|
function enter (vnode, toggleDisplay) {
|
|
const el = vnode.elm;
|
|
|
|
// call leave callback now
|
|
if (isDef(el._leaveCb)) {
|
|
el._leaveCb.cancelled = true;
|
|
el._leaveCb();
|
|
}
|
|
|
|
const data = resolveTransition(vnode.data.transition);
|
|
if (isUndef(data)) {
|
|
return
|
|
}
|
|
|
|
/* istanbul ignore if */
|
|
if (isDef(el._enterCb) || el.nodeType !== 1) {
|
|
return
|
|
}
|
|
|
|
const {
|
|
css,
|
|
type,
|
|
enterClass,
|
|
enterToClass,
|
|
enterActiveClass,
|
|
appearClass,
|
|
appearToClass,
|
|
appearActiveClass,
|
|
beforeEnter,
|
|
enter,
|
|
afterEnter,
|
|
enterCancelled,
|
|
beforeAppear,
|
|
appear,
|
|
afterAppear,
|
|
appearCancelled,
|
|
duration
|
|
} = data;
|
|
|
|
// activeInstance will always be the <transition> component managing this
|
|
// transition. One edge case to check is when the <transition> is placed
|
|
// as the root node of a child component. In that case we need to check
|
|
// <transition>'s parent for appear check.
|
|
let context = activeInstance;
|
|
let transitionNode = activeInstance.$vnode;
|
|
while (transitionNode && transitionNode.parent) {
|
|
context = transitionNode.context;
|
|
transitionNode = transitionNode.parent;
|
|
}
|
|
|
|
const isAppear = !context._isMounted || !vnode.isRootInsert;
|
|
|
|
if (isAppear && !appear && appear !== '') {
|
|
return
|
|
}
|
|
|
|
const startClass = isAppear && appearClass
|
|
? appearClass
|
|
: enterClass;
|
|
const activeClass = isAppear && appearActiveClass
|
|
? appearActiveClass
|
|
: enterActiveClass;
|
|
const toClass = isAppear && appearToClass
|
|
? appearToClass
|
|
: enterToClass;
|
|
|
|
const beforeEnterHook = isAppear
|
|
? (beforeAppear || beforeEnter)
|
|
: beforeEnter;
|
|
const enterHook = isAppear
|
|
? (typeof appear === 'function' ? appear : enter)
|
|
: enter;
|
|
const afterEnterHook = isAppear
|
|
? (afterAppear || afterEnter)
|
|
: afterEnter;
|
|
const enterCancelledHook = isAppear
|
|
? (appearCancelled || enterCancelled)
|
|
: enterCancelled;
|
|
|
|
const explicitEnterDuration = toNumber(
|
|
isObject(duration)
|
|
? duration.enter
|
|
: duration
|
|
);
|
|
|
|
if (explicitEnterDuration != null) {
|
|
checkDuration(explicitEnterDuration, 'enter', vnode);
|
|
}
|
|
|
|
const expectsCSS = css !== false && !isIE9;
|
|
const userWantsControl = getHookArgumentsLength(enterHook);
|
|
|
|
const cb = el._enterCb = once(() => {
|
|
if (expectsCSS) {
|
|
removeTransitionClass(el, toClass);
|
|
removeTransitionClass(el, activeClass);
|
|
}
|
|
if (cb.cancelled) {
|
|
if (expectsCSS) {
|
|
removeTransitionClass(el, startClass);
|
|
}
|
|
enterCancelledHook && enterCancelledHook(el);
|
|
} else {
|
|
afterEnterHook && afterEnterHook(el);
|
|
}
|
|
el._enterCb = null;
|
|
});
|
|
|
|
if (!vnode.data.show) {
|
|
// remove pending leave element on enter by injecting an insert hook
|
|
mergeVNodeHook(vnode, 'insert', () => {
|
|
const parent = el.parentNode;
|
|
const pendingNode = parent && parent._pending && parent._pending[vnode.key];
|
|
if (pendingNode &&
|
|
pendingNode.tag === vnode.tag &&
|
|
pendingNode.elm._leaveCb
|
|
) {
|
|
pendingNode.elm._leaveCb();
|
|
}
|
|
enterHook && enterHook(el, cb);
|
|
});
|
|
}
|
|
|
|
// start enter transition
|
|
beforeEnterHook && beforeEnterHook(el);
|
|
if (expectsCSS) {
|
|
addTransitionClass(el, startClass);
|
|
addTransitionClass(el, activeClass);
|
|
nextFrame(() => {
|
|
removeTransitionClass(el, startClass);
|
|
if (!cb.cancelled) {
|
|
addTransitionClass(el, toClass);
|
|
if (!userWantsControl) {
|
|
if (isValidDuration(explicitEnterDuration)) {
|
|
setTimeout(cb, explicitEnterDuration);
|
|
} else {
|
|
whenTransitionEnds(el, type, cb);
|
|
}
|
|
}
|
|
}
|
|
});
|
|
}
|
|
|
|
if (vnode.data.show) {
|
|
toggleDisplay && toggleDisplay();
|
|
enterHook && enterHook(el, cb);
|
|
}
|
|
|
|
if (!expectsCSS && !userWantsControl) {
|
|
cb();
|
|
}
|
|
}
|
|
|
|
function leave (vnode, rm) {
|
|
const el = vnode.elm;
|
|
|
|
// call enter callback now
|
|
if (isDef(el._enterCb)) {
|
|
el._enterCb.cancelled = true;
|
|
el._enterCb();
|
|
}
|
|
|
|
const data = resolveTransition(vnode.data.transition);
|
|
if (isUndef(data) || el.nodeType !== 1) {
|
|
return rm()
|
|
}
|
|
|
|
/* istanbul ignore if */
|
|
if (isDef(el._leaveCb)) {
|
|
return
|
|
}
|
|
|
|
const {
|
|
css,
|
|
type,
|
|
leaveClass,
|
|
leaveToClass,
|
|
leaveActiveClass,
|
|
beforeLeave,
|
|
leave,
|
|
afterLeave,
|
|
leaveCancelled,
|
|
delayLeave,
|
|
duration
|
|
} = data;
|
|
|
|
const expectsCSS = css !== false && !isIE9;
|
|
const userWantsControl = getHookArgumentsLength(leave);
|
|
|
|
const explicitLeaveDuration = toNumber(
|
|
isObject(duration)
|
|
? duration.leave
|
|
: duration
|
|
);
|
|
|
|
if (isDef(explicitLeaveDuration)) {
|
|
checkDuration(explicitLeaveDuration, 'leave', vnode);
|
|
}
|
|
|
|
const cb = el._leaveCb = once(() => {
|
|
if (el.parentNode && el.parentNode._pending) {
|
|
el.parentNode._pending[vnode.key] = null;
|
|
}
|
|
if (expectsCSS) {
|
|
removeTransitionClass(el, leaveToClass);
|
|
removeTransitionClass(el, leaveActiveClass);
|
|
}
|
|
if (cb.cancelled) {
|
|
if (expectsCSS) {
|
|
removeTransitionClass(el, leaveClass);
|
|
}
|
|
leaveCancelled && leaveCancelled(el);
|
|
} else {
|
|
rm();
|
|
afterLeave && afterLeave(el);
|
|
}
|
|
el._leaveCb = null;
|
|
});
|
|
|
|
if (delayLeave) {
|
|
delayLeave(performLeave);
|
|
} else {
|
|
performLeave();
|
|
}
|
|
|
|
function performLeave () {
|
|
// the delayed leave may have already been cancelled
|
|
if (cb.cancelled) {
|
|
return
|
|
}
|
|
// record leaving element
|
|
if (!vnode.data.show && el.parentNode) {
|
|
(el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
|
|
}
|
|
beforeLeave && beforeLeave(el);
|
|
if (expectsCSS) {
|
|
addTransitionClass(el, leaveClass);
|
|
addTransitionClass(el, leaveActiveClass);
|
|
nextFrame(() => {
|
|
removeTransitionClass(el, leaveClass);
|
|
if (!cb.cancelled) {
|
|
addTransitionClass(el, leaveToClass);
|
|
if (!userWantsControl) {
|
|
if (isValidDuration(explicitLeaveDuration)) {
|
|
setTimeout(cb, explicitLeaveDuration);
|
|
} else {
|
|
whenTransitionEnds(el, type, cb);
|
|
}
|
|
}
|
|
}
|
|
});
|
|
}
|
|
leave && leave(el, cb);
|
|
if (!expectsCSS && !userWantsControl) {
|
|
cb();
|
|
}
|
|
}
|
|
}
|
|
|
|
// only used in dev mode
|
|
function checkDuration (val, name, vnode) {
|
|
if (typeof val !== 'number') {
|
|
warn(
|
|
`<transition> explicit ${name} duration is not a valid number - ` +
|
|
`got ${JSON.stringify(val)}.`,
|
|
vnode.context
|
|
);
|
|
} else if (isNaN(val)) {
|
|
warn(
|
|
`<transition> explicit ${name} duration is NaN - ` +
|
|
'the duration expression might be incorrect.',
|
|
vnode.context
|
|
);
|
|
}
|
|
}
|
|
|
|
function isValidDuration (val) {
|
|
return typeof val === 'number' && !isNaN(val)
|
|
}
|
|
|
|
/**
|
|
* Normalize a transition hook's argument length. The hook may be:
|
|
* - a merged hook (invoker) with the original in .fns
|
|
* - a wrapped component method (check ._length)
|
|
* - a plain function (.length)
|
|
*/
|
|
function getHookArgumentsLength (fn) {
|
|
if (isUndef(fn)) {
|
|
return false
|
|
}
|
|
const invokerFns = fn.fns;
|
|
if (isDef(invokerFns)) {
|
|
// invoker
|
|
return getHookArgumentsLength(
|
|
Array.isArray(invokerFns)
|
|
? invokerFns[0]
|
|
: invokerFns
|
|
)
|
|
} else {
|
|
return (fn._length || fn.length) > 1
|
|
}
|
|
}
|
|
|
|
function _enter (_, vnode) {
|
|
if (vnode.data.show !== true) {
|
|
enter(vnode);
|
|
}
|
|
}
|
|
|
|
var transition = inBrowser ? {
|
|
create: _enter,
|
|
activate: _enter,
|
|
remove (vnode, rm) {
|
|
/* istanbul ignore else */
|
|
if (vnode.data.show !== true) {
|
|
leave(vnode, rm);
|
|
} else {
|
|
rm();
|
|
}
|
|
}
|
|
} : {};
|
|
|
|
var platformModules = [
|
|
attrs,
|
|
klass,
|
|
events,
|
|
domProps,
|
|
style,
|
|
transition
|
|
];
|
|
|
|
/* */
|
|
|
|
// the directive module should be applied last, after all
|
|
// built-in modules have been applied.
|
|
const modules = platformModules.concat(baseModules);
|
|
|
|
const patch = createPatchFunction({ nodeOps, modules });
|
|
|
|
/**
|
|
* Not type checking this file because flow doesn't like attaching
|
|
* properties to Elements.
|
|
*/
|
|
|
|
/* istanbul ignore if */
|
|
if (isIE9) {
|
|
// http://www.matts411.com/post/internet-explorer-9-oninput/
|
|
document.addEventListener('selectionchange', () => {
|
|
const el = document.activeElement;
|
|
if (el && el.vmodel) {
|
|
trigger(el, 'input');
|
|
}
|
|
});
|
|
}
|
|
|
|
const directive = {
|
|
inserted (el, binding, vnode, oldVnode) {
|
|
if (vnode.tag === 'select') {
|
|
// #6903
|
|
if (oldVnode.elm && !oldVnode.elm._vOptions) {
|
|
mergeVNodeHook(vnode, 'postpatch', () => {
|
|
directive.componentUpdated(el, binding, vnode);
|
|
});
|
|
} else {
|
|
setSelected(el, binding, vnode.context);
|
|
}
|
|
el._vOptions = [].map.call(el.options, getValue);
|
|
} else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
|
|
el._vModifiers = binding.modifiers;
|
|
if (!binding.modifiers.lazy) {
|
|
el.addEventListener('compositionstart', onCompositionStart);
|
|
el.addEventListener('compositionend', onCompositionEnd);
|
|
// Safari < 10.2 & UIWebView doesn't fire compositionend when
|
|
// switching focus before confirming composition choice
|
|
// this also fixes the issue where some browsers e.g. iOS Chrome
|
|
// fires "change" instead of "input" on autocomplete.
|
|
el.addEventListener('change', onCompositionEnd);
|
|
/* istanbul ignore if */
|
|
if (isIE9) {
|
|
el.vmodel = true;
|
|
}
|
|
}
|
|
}
|
|
},
|
|
|
|
componentUpdated (el, binding, vnode) {
|
|
if (vnode.tag === 'select') {
|
|
setSelected(el, binding, vnode.context);
|
|
// in case the options rendered by v-for have changed,
|
|
// it's possible that the value is out-of-sync with the rendered options.
|
|
// detect such cases and filter out values that no longer has a matching
|
|
// option in the DOM.
|
|
const prevOptions = el._vOptions;
|
|
const curOptions = el._vOptions = [].map.call(el.options, getValue);
|
|
if (curOptions.some((o, i) => !looseEqual(o, prevOptions[i]))) {
|
|
// trigger change event if
|
|
// no matching option found for at least one value
|
|
const needReset = el.multiple
|
|
? binding.value.some(v => hasNoMatchingOption(v, curOptions))
|
|
: binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
|
|
if (needReset) {
|
|
trigger(el, 'change');
|
|
}
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
function setSelected (el, binding, vm) {
|
|
actuallySetSelected(el, binding, vm);
|
|
/* istanbul ignore if */
|
|
if (isIE || isEdge) {
|
|
setTimeout(() => {
|
|
actuallySetSelected(el, binding, vm);
|
|
}, 0);
|
|
}
|
|
}
|
|
|
|
function actuallySetSelected (el, binding, vm) {
|
|
const value = binding.value;
|
|
const isMultiple = el.multiple;
|
|
if (isMultiple && !Array.isArray(value)) {
|
|
warn(
|
|
`<select multiple v-model="${binding.expression}"> ` +
|
|
`expects an Array value for its binding, but got ${
|
|
Object.prototype.toString.call(value).slice(8, -1)
|
|
}`,
|
|
vm
|
|
);
|
|
return
|
|
}
|
|
let selected, option;
|
|
for (let i = 0, l = el.options.length; i < l; i++) {
|
|
option = el.options[i];
|
|
if (isMultiple) {
|
|
selected = looseIndexOf(value, getValue(option)) > -1;
|
|
if (option.selected !== selected) {
|
|
option.selected = selected;
|
|
}
|
|
} else {
|
|
if (looseEqual(getValue(option), value)) {
|
|
if (el.selectedIndex !== i) {
|
|
el.selectedIndex = i;
|
|
}
|
|
return
|
|
}
|
|
}
|
|
}
|
|
if (!isMultiple) {
|
|
el.selectedIndex = -1;
|
|
}
|
|
}
|
|
|
|
function hasNoMatchingOption (value, options) {
|
|
return options.every(o => !looseEqual(o, value))
|
|
}
|
|
|
|
function getValue (option) {
|
|
return '_value' in option
|
|
? option._value
|
|
: option.value
|
|
}
|
|
|
|
function onCompositionStart (e) {
|
|
e.target.composing = true;
|
|
}
|
|
|
|
function onCompositionEnd (e) {
|
|
// prevent triggering an input event for no reason
|
|
if (!e.target.composing) return
|
|
e.target.composing = false;
|
|
trigger(e.target, 'input');
|
|
}
|
|
|
|
function trigger (el, type) {
|
|
const e = document.createEvent('HTMLEvents');
|
|
e.initEvent(type, true, true);
|
|
el.dispatchEvent(e);
|
|
}
|
|
|
|
/* */
|
|
|
|
// recursively search for possible transition defined inside the component root
|
|
function locateNode (vnode) {
|
|
return vnode.componentInstance && (!vnode.data || !vnode.data.transition)
|
|
? locateNode(vnode.componentInstance._vnode)
|
|
: vnode
|
|
}
|
|
|
|
var show = {
|
|
bind (el, { value }, vnode) {
|
|
vnode = locateNode(vnode);
|
|
const transition$$1 = vnode.data && vnode.data.transition;
|
|
const originalDisplay = el.__vOriginalDisplay =
|
|
el.style.display === 'none' ? '' : el.style.display;
|
|
if (value && transition$$1) {
|
|
vnode.data.show = true;
|
|
enter(vnode, () => {
|
|
el.style.display = originalDisplay;
|
|
});
|
|
} else {
|
|
el.style.display = value ? originalDisplay : 'none';
|
|
}
|
|
},
|
|
|
|
update (el, { value, oldValue }, vnode) {
|
|
/* istanbul ignore if */
|
|
if (!value === !oldValue) return
|
|
vnode = locateNode(vnode);
|
|
const transition$$1 = vnode.data && vnode.data.transition;
|
|
if (transition$$1) {
|
|
vnode.data.show = true;
|
|
if (value) {
|
|
enter(vnode, () => {
|
|
el.style.display = el.__vOriginalDisplay;
|
|
});
|
|
} else {
|
|
leave(vnode, () => {
|
|
el.style.display = 'none';
|
|
});
|
|
}
|
|
} else {
|
|
el.style.display = value ? el.__vOriginalDisplay : 'none';
|
|
}
|
|
},
|
|
|
|
unbind (
|
|
el,
|
|
binding,
|
|
vnode,
|
|
oldVnode,
|
|
isDestroy
|
|
) {
|
|
if (!isDestroy) {
|
|
el.style.display = el.__vOriginalDisplay;
|
|
}
|
|
}
|
|
};
|
|
|
|
var platformDirectives = {
|
|
model: directive,
|
|
show
|
|
};
|
|
|
|
/* */
|
|
|
|
const transitionProps = {
|
|
name: String,
|
|
appear: Boolean,
|
|
css: Boolean,
|
|
mode: String,
|
|
type: String,
|
|
enterClass: String,
|
|
leaveClass: String,
|
|
enterToClass: String,
|
|
leaveToClass: String,
|
|
enterActiveClass: String,
|
|
leaveActiveClass: String,
|
|
appearClass: String,
|
|
appearActiveClass: String,
|
|
appearToClass: String,
|
|
duration: [Number, String, Object]
|
|
};
|
|
|
|
// in case the child is also an abstract component, e.g. <keep-alive>
|
|
// we want to recursively retrieve the real component to be rendered
|
|
function getRealChild (vnode) {
|
|
const compOptions = vnode && vnode.componentOptions;
|
|
if (compOptions && compOptions.Ctor.options.abstract) {
|
|
return getRealChild(getFirstComponentChild(compOptions.children))
|
|
} else {
|
|
return vnode
|
|
}
|
|
}
|
|
|
|
function extractTransitionData (comp) {
|
|
const data = {};
|
|
const options = comp.$options;
|
|
// props
|
|
for (const key in options.propsData) {
|
|
data[key] = comp[key];
|
|
}
|
|
// events.
|
|
// extract listeners and pass them directly to the transition methods
|
|
const listeners = options._parentListeners;
|
|
for (const key in listeners) {
|
|
data[camelize(key)] = listeners[key];
|
|
}
|
|
return data
|
|
}
|
|
|
|
function placeholder (h, rawChild) {
|
|
if (/\d-keep-alive$/.test(rawChild.tag)) {
|
|
return h('keep-alive', {
|
|
props: rawChild.componentOptions.propsData
|
|
})
|
|
}
|
|
}
|
|
|
|
function hasParentTransition (vnode) {
|
|
while ((vnode = vnode.parent)) {
|
|
if (vnode.data.transition) {
|
|
return true
|
|
}
|
|
}
|
|
}
|
|
|
|
function isSameChild (child, oldChild) {
|
|
return oldChild.key === child.key && oldChild.tag === child.tag
|
|
}
|
|
|
|
const isNotTextNode = (c) => c.tag || isAsyncPlaceholder(c);
|
|
|
|
const isVShowDirective = d => d.name === 'show';
|
|
|
|
var Transition = {
|
|
name: 'transition',
|
|
props: transitionProps,
|
|
abstract: true,
|
|
|
|
render (h) {
|
|
let children = this.$slots.default;
|
|
if (!children) {
|
|
return
|
|
}
|
|
|
|
// filter out text nodes (possible whitespaces)
|
|
children = children.filter(isNotTextNode);
|
|
/* istanbul ignore if */
|
|
if (!children.length) {
|
|
return
|
|
}
|
|
|
|
// warn multiple elements
|
|
if (children.length > 1) {
|
|
warn(
|
|
'<transition> can only be used on a single element. Use ' +
|
|
'<transition-group> for lists.',
|
|
this.$parent
|
|
);
|
|
}
|
|
|
|
const mode = this.mode;
|
|
|
|
// warn invalid mode
|
|
if (mode && mode !== 'in-out' && mode !== 'out-in'
|
|
) {
|
|
warn(
|
|
'invalid <transition> mode: ' + mode,
|
|
this.$parent
|
|
);
|
|
}
|
|
|
|
const rawChild = children[0];
|
|
|
|
// if this is a component root node and the component's
|
|
// parent container node also has transition, skip.
|
|
if (hasParentTransition(this.$vnode)) {
|
|
return rawChild
|
|
}
|
|
|
|
// apply transition data to child
|
|
// use getRealChild() to ignore abstract components e.g. keep-alive
|
|
const child = getRealChild(rawChild);
|
|
/* istanbul ignore if */
|
|
if (!child) {
|
|
return rawChild
|
|
}
|
|
|
|
if (this._leaving) {
|
|
return placeholder(h, rawChild)
|
|
}
|
|
|
|
// ensure a key that is unique to the vnode type and to this transition
|
|
// component instance. This key will be used to remove pending leaving nodes
|
|
// during entering.
|
|
const id = `__transition-${this._uid}-`;
|
|
child.key = child.key == null
|
|
? child.isComment
|
|
? id + 'comment'
|
|
: id + child.tag
|
|
: isPrimitive(child.key)
|
|
? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)
|
|
: child.key;
|
|
|
|
const data = (child.data || (child.data = {})).transition = extractTransitionData(this);
|
|
const oldRawChild = this._vnode;
|
|
const oldChild = getRealChild(oldRawChild);
|
|
|
|
// mark v-show
|
|
// so that the transition module can hand over the control to the directive
|
|
if (child.data.directives && child.data.directives.some(isVShowDirective)) {
|
|
child.data.show = true;
|
|
}
|
|
|
|
if (
|
|
oldChild &&
|
|
oldChild.data &&
|
|
!isSameChild(child, oldChild) &&
|
|
!isAsyncPlaceholder(oldChild) &&
|
|
// #6687 component root is a comment node
|
|
!(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
|
|
) {
|
|
// replace old child transition data with fresh one
|
|
// important for dynamic transitions!
|
|
const oldData = oldChild.data.transition = extend({}, data);
|
|
// handle transition mode
|
|
if (mode === 'out-in') {
|
|
// return placeholder node and queue update when leave finishes
|
|
this._leaving = true;
|
|
mergeVNodeHook(oldData, 'afterLeave', () => {
|
|
this._leaving = false;
|
|
this.$forceUpdate();
|
|
});
|
|
return placeholder(h, rawChild)
|
|
} else if (mode === 'in-out') {
|
|
if (isAsyncPlaceholder(child)) {
|
|
return oldRawChild
|
|
}
|
|
let delayedLeave;
|
|
const performLeave = () => { delayedLeave(); };
|
|
mergeVNodeHook(data, 'afterEnter', performLeave);
|
|
mergeVNodeHook(data, 'enterCancelled', performLeave);
|
|
mergeVNodeHook(oldData, 'delayLeave', leave => { delayedLeave = leave; });
|
|
}
|
|
}
|
|
|
|
return rawChild
|
|
}
|
|
};
|
|
|
|
/* */
|
|
|
|
const props = extend({
|
|
tag: String,
|
|
moveClass: String
|
|
}, transitionProps);
|
|
|
|
delete props.mode;
|
|
|
|
var TransitionGroup = {
|
|
props,
|
|
|
|
beforeMount () {
|
|
const update = this._update;
|
|
this._update = (vnode, hydrating) => {
|
|
const restoreActiveInstance = setActiveInstance(this);
|
|
// force removing pass
|
|
this.__patch__(
|
|
this._vnode,
|
|
this.kept,
|
|
false, // hydrating
|
|
true // removeOnly (!important, avoids unnecessary moves)
|
|
);
|
|
this._vnode = this.kept;
|
|
restoreActiveInstance();
|
|
update.call(this, vnode, hydrating);
|
|
};
|
|
},
|
|
|
|
render (h) {
|
|
const tag = this.tag || this.$vnode.data.tag || 'span';
|
|
const map = Object.create(null);
|
|
const prevChildren = this.prevChildren = this.children;
|
|
const rawChildren = this.$slots.default || [];
|
|
const children = this.children = [];
|
|
const transitionData = extractTransitionData(this);
|
|
|
|
for (let i = 0; i < rawChildren.length; i++) {
|
|
const c = rawChildren[i];
|
|
if (c.tag) {
|
|
if (c.key != null && String(c.key).indexOf('__vlist') !== 0) {
|
|
children.push(c);
|
|
map[c.key] = c
|
|
;(c.data || (c.data = {})).transition = transitionData;
|
|
} else {
|
|
const opts = c.componentOptions;
|
|
const name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag;
|
|
warn(`<transition-group> children must be keyed: <${name}>`);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (prevChildren) {
|
|
const kept = [];
|
|
const removed = [];
|
|
for (let i = 0; i < prevChildren.length; i++) {
|
|
const c = prevChildren[i];
|
|
c.data.transition = transitionData;
|
|
c.data.pos = c.elm.getBoundingClientRect();
|
|
if (map[c.key]) {
|
|
kept.push(c);
|
|
} else {
|
|
removed.push(c);
|
|
}
|
|
}
|
|
this.kept = h(tag, null, kept);
|
|
this.removed = removed;
|
|
}
|
|
|
|
return h(tag, null, children)
|
|
},
|
|
|
|
updated () {
|
|
const children = this.prevChildren;
|
|
const moveClass = this.moveClass || ((this.name || 'v') + '-move');
|
|
if (!children.length || !this.hasMove(children[0].elm, moveClass)) {
|
|
return
|
|
}
|
|
|
|
// we divide the work into three loops to avoid mixing DOM reads and writes
|
|
// in each iteration - which helps prevent layout thrashing.
|
|
children.forEach(callPendingCbs);
|
|
children.forEach(recordPosition);
|
|
children.forEach(applyTranslation);
|
|
|
|
// force reflow to put everything in position
|
|
// assign to this to avoid being removed in tree-shaking
|
|
// $flow-disable-line
|
|
this._reflow = document.body.offsetHeight;
|
|
|
|
children.forEach((c) => {
|
|
if (c.data.moved) {
|
|
const el = c.elm;
|
|
const s = el.style;
|
|
addTransitionClass(el, moveClass);
|
|
s.transform = s.WebkitTransform = s.transitionDuration = '';
|
|
el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
|
|
if (e && e.target !== el) {
|
|
return
|
|
}
|
|
if (!e || /transform$/.test(e.propertyName)) {
|
|
el.removeEventListener(transitionEndEvent, cb);
|
|
el._moveCb = null;
|
|
removeTransitionClass(el, moveClass);
|
|
}
|
|
});
|
|
}
|
|
});
|
|
},
|
|
|
|
methods: {
|
|
hasMove (el, moveClass) {
|
|
/* istanbul ignore if */
|
|
if (!hasTransition) {
|
|
return false
|
|
}
|
|
/* istanbul ignore if */
|
|
if (this._hasMove) {
|
|
return this._hasMove
|
|
}
|
|
// Detect whether an element with the move class applied has
|
|
// CSS transitions. Since the element may be inside an entering
|
|
// transition at this very moment, we make a clone of it and remove
|
|
// all other transition classes applied to ensure only the move class
|
|
// is applied.
|
|
const clone = el.cloneNode();
|
|
if (el._transitionClasses) {
|
|
el._transitionClasses.forEach((cls) => { removeClass(clone, cls); });
|
|
}
|
|
addClass(clone, moveClass);
|
|
clone.style.display = 'none';
|
|
this.$el.appendChild(clone);
|
|
const info = getTransitionInfo(clone);
|
|
this.$el.removeChild(clone);
|
|
return (this._hasMove = info.hasTransform)
|
|
}
|
|
}
|
|
};
|
|
|
|
function callPendingCbs (c) {
|
|
/* istanbul ignore if */
|
|
if (c.elm._moveCb) {
|
|
c.elm._moveCb();
|
|
}
|
|
/* istanbul ignore if */
|
|
if (c.elm._enterCb) {
|
|
c.elm._enterCb();
|
|
}
|
|
}
|
|
|
|
function recordPosition (c) {
|
|
c.data.newPos = c.elm.getBoundingClientRect();
|
|
}
|
|
|
|
function applyTranslation (c) {
|
|
const oldPos = c.data.pos;
|
|
const newPos = c.data.newPos;
|
|
const dx = oldPos.left - newPos.left;
|
|
const dy = oldPos.top - newPos.top;
|
|
if (dx || dy) {
|
|
c.data.moved = true;
|
|
const s = c.elm.style;
|
|
s.transform = s.WebkitTransform = `translate(${dx}px,${dy}px)`;
|
|
s.transitionDuration = '0s';
|
|
}
|
|
}
|
|
|
|
var platformComponents = {
|
|
Transition,
|
|
TransitionGroup
|
|
};
|
|
|
|
/* */
|
|
|
|
// install platform specific utils
|
|
Vue.config.mustUseProp = mustUseProp;
|
|
Vue.config.isReservedTag = isReservedTag;
|
|
Vue.config.isReservedAttr = isReservedAttr;
|
|
Vue.config.getTagNamespace = getTagNamespace;
|
|
Vue.config.isUnknownElement = isUnknownElement;
|
|
|
|
// install platform runtime directives & components
|
|
extend(Vue.options.directives, platformDirectives);
|
|
extend(Vue.options.components, platformComponents);
|
|
|
|
// install platform patch function
|
|
Vue.prototype.__patch__ = inBrowser ? patch : noop;
|
|
|
|
// public mount method
|
|
Vue.prototype.$mount = function (
|
|
el,
|
|
hydrating
|
|
) {
|
|
el = el && inBrowser ? query(el) : undefined;
|
|
return mountComponent(this, el, hydrating)
|
|
};
|
|
|
|
// devtools global hook
|
|
/* istanbul ignore next */
|
|
if (inBrowser) {
|
|
setTimeout(() => {
|
|
if (config.devtools) {
|
|
if (devtools) {
|
|
devtools.emit('init', Vue);
|
|
} else {
|
|
console[console.info ? 'info' : 'log'](
|
|
'Download the Vue Devtools extension for a better development experience:\n' +
|
|
'https://github.com/vuejs/vue-devtools'
|
|
);
|
|
}
|
|
}
|
|
if (config.productionTip !== false &&
|
|
typeof console !== 'undefined'
|
|
) {
|
|
console[console.info ? 'info' : 'log'](
|
|
`You are running Vue in development mode.\n` +
|
|
`Make sure to turn on production mode when deploying for production.\n` +
|
|
`See more tips at https://vuejs.org/guide/deployment.html`
|
|
);
|
|
}
|
|
}, 0);
|
|
}
|
|
|
|
/* */
|
|
|
|
const defaultTagRE = /\{\{((?:.|\r?\n)+?)\}\}/g;
|
|
const regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
|
|
|
|
const buildRegex = cached(delimiters => {
|
|
const open = delimiters[0].replace(regexEscapeRE, '\\$&');
|
|
const close = delimiters[1].replace(regexEscapeRE, '\\$&');
|
|
return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
|
|
});
|
|
|
|
|
|
|
|
function parseText (
|
|
text,
|
|
delimiters
|
|
) {
|
|
const tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE;
|
|
if (!tagRE.test(text)) {
|
|
return
|
|
}
|
|
const tokens = [];
|
|
const rawTokens = [];
|
|
let lastIndex = tagRE.lastIndex = 0;
|
|
let match, index, tokenValue;
|
|
while ((match = tagRE.exec(text))) {
|
|
index = match.index;
|
|
// push text token
|
|
if (index > lastIndex) {
|
|
rawTokens.push(tokenValue = text.slice(lastIndex, index));
|
|
tokens.push(JSON.stringify(tokenValue));
|
|
}
|
|
// tag token
|
|
const exp = parseFilters(match[1].trim());
|
|
tokens.push(`_s(${exp})`);
|
|
rawTokens.push({ '@binding': exp });
|
|
lastIndex = index + match[0].length;
|
|
}
|
|
if (lastIndex < text.length) {
|
|
rawTokens.push(tokenValue = text.slice(lastIndex));
|
|
tokens.push(JSON.stringify(tokenValue));
|
|
}
|
|
return {
|
|
expression: tokens.join('+'),
|
|
tokens: rawTokens
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
function transformNode (el, options) {
|
|
const warn = options.warn || baseWarn;
|
|
const staticClass = getAndRemoveAttr(el, 'class');
|
|
if (staticClass) {
|
|
const res = parseText(staticClass, options.delimiters);
|
|
if (res) {
|
|
warn(
|
|
`class="${staticClass}": ` +
|
|
'Interpolation inside attributes has been removed. ' +
|
|
'Use v-bind or the colon shorthand instead. For example, ' +
|
|
'instead of <div class="{{ val }}">, use <div :class="val">.',
|
|
el.rawAttrsMap['class']
|
|
);
|
|
}
|
|
}
|
|
if (staticClass) {
|
|
el.staticClass = JSON.stringify(staticClass);
|
|
}
|
|
const classBinding = getBindingAttr(el, 'class', false /* getStatic */);
|
|
if (classBinding) {
|
|
el.classBinding = classBinding;
|
|
}
|
|
}
|
|
|
|
function genData (el) {
|
|
let data = '';
|
|
if (el.staticClass) {
|
|
data += `staticClass:${el.staticClass},`;
|
|
}
|
|
if (el.classBinding) {
|
|
data += `class:${el.classBinding},`;
|
|
}
|
|
return data
|
|
}
|
|
|
|
var klass$1 = {
|
|
staticKeys: ['staticClass'],
|
|
transformNode,
|
|
genData
|
|
};
|
|
|
|
/* */
|
|
|
|
function transformNode$1 (el, options) {
|
|
const warn = options.warn || baseWarn;
|
|
const staticStyle = getAndRemoveAttr(el, 'style');
|
|
if (staticStyle) {
|
|
/* istanbul ignore if */
|
|
{
|
|
const res = parseText(staticStyle, options.delimiters);
|
|
if (res) {
|
|
warn(
|
|
`style="${staticStyle}": ` +
|
|
'Interpolation inside attributes has been removed. ' +
|
|
'Use v-bind or the colon shorthand instead. For example, ' +
|
|
'instead of <div style="{{ val }}">, use <div :style="val">.',
|
|
el.rawAttrsMap['style']
|
|
);
|
|
}
|
|
}
|
|
el.staticStyle = JSON.stringify(parseStyleText(staticStyle));
|
|
}
|
|
|
|
const styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
|
|
if (styleBinding) {
|
|
el.styleBinding = styleBinding;
|
|
}
|
|
}
|
|
|
|
function genData$1 (el) {
|
|
let data = '';
|
|
if (el.staticStyle) {
|
|
data += `staticStyle:${el.staticStyle},`;
|
|
}
|
|
if (el.styleBinding) {
|
|
data += `style:(${el.styleBinding}),`;
|
|
}
|
|
return data
|
|
}
|
|
|
|
var style$1 = {
|
|
staticKeys: ['staticStyle'],
|
|
transformNode: transformNode$1,
|
|
genData: genData$1
|
|
};
|
|
|
|
/* */
|
|
|
|
let decoder;
|
|
|
|
var he = {
|
|
decode (html) {
|
|
decoder = decoder || document.createElement('div');
|
|
decoder.innerHTML = html;
|
|
return decoder.textContent
|
|
}
|
|
};
|
|
|
|
/* */
|
|
|
|
const isUnaryTag = makeMap(
|
|
'area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' +
|
|
'link,meta,param,source,track,wbr'
|
|
);
|
|
|
|
// Elements that you can, intentionally, leave open
|
|
// (and which close themselves)
|
|
const canBeLeftOpenTag = makeMap(
|
|
'colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source'
|
|
);
|
|
|
|
// HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3
|
|
// Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content
|
|
const isNonPhrasingTag = makeMap(
|
|
'address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' +
|
|
'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' +
|
|
'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' +
|
|
'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' +
|
|
'title,tr,track'
|
|
);
|
|
|
|
/**
|
|
* Not type-checking this file because it's mostly vendor code.
|
|
*/
|
|
|
|
// Regular Expressions for parsing tags and attributes
|
|
const attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
|
|
const dynamicArgAttribute = /^\s*((?:v-[\w-]+:|@|:|#)\[[^=]+\][^\s"'<>\/=]*)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
|
|
const ncname = `[a-zA-Z_][\\-\\.0-9_a-zA-Z${unicodeRegExp.source}]*`;
|
|
const qnameCapture = `((?:${ncname}\\:)?${ncname})`;
|
|
const startTagOpen = new RegExp(`^<${qnameCapture}`);
|
|
const startTagClose = /^\s*(\/?)>/;
|
|
const endTag = new RegExp(`^<\\/${qnameCapture}[^>]*>`);
|
|
const doctype = /^<!DOCTYPE [^>]+>/i;
|
|
// #7298: escape - to avoid being passed as HTML comment when inlined in page
|
|
const comment = /^<!\--/;
|
|
const conditionalComment = /^<!\[/;
|
|
|
|
// Special Elements (can contain anything)
|
|
const isPlainTextElement = makeMap('script,style,textarea', true);
|
|
const reCache = {};
|
|
|
|
const decodingMap = {
|
|
'<': '<',
|
|
'>': '>',
|
|
'"': '"',
|
|
'&': '&',
|
|
' ': '\n',
|
|
'	': '\t',
|
|
''': "'"
|
|
};
|
|
const encodedAttr = /&(?:lt|gt|quot|amp|#39);/g;
|
|
const encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#39|#10|#9);/g;
|
|
|
|
// #5992
|
|
const isIgnoreNewlineTag = makeMap('pre,textarea', true);
|
|
const shouldIgnoreFirstNewline = (tag, html) => tag && isIgnoreNewlineTag(tag) && html[0] === '\n';
|
|
|
|
function decodeAttr (value, shouldDecodeNewlines) {
|
|
const re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
|
|
return value.replace(re, match => decodingMap[match])
|
|
}
|
|
|
|
function parseHTML (html, options) {
|
|
const stack = [];
|
|
const expectHTML = options.expectHTML;
|
|
const isUnaryTag$$1 = options.isUnaryTag || no;
|
|
const canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no;
|
|
let index = 0;
|
|
let last, lastTag;
|
|
while (html) {
|
|
last = html;
|
|
// Make sure we're not in a plaintext content element like script/style
|
|
if (!lastTag || !isPlainTextElement(lastTag)) {
|
|
let textEnd = html.indexOf('<');
|
|
if (textEnd === 0) {
|
|
// Comment:
|
|
if (comment.test(html)) {
|
|
const commentEnd = html.indexOf('-->');
|
|
|
|
if (commentEnd >= 0) {
|
|
if (options.shouldKeepComment) {
|
|
options.comment(html.substring(4, commentEnd), index, index + commentEnd + 3);
|
|
}
|
|
advance(commentEnd + 3);
|
|
continue
|
|
}
|
|
}
|
|
|
|
// http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
|
|
if (conditionalComment.test(html)) {
|
|
const conditionalEnd = html.indexOf(']>');
|
|
|
|
if (conditionalEnd >= 0) {
|
|
advance(conditionalEnd + 2);
|
|
continue
|
|
}
|
|
}
|
|
|
|
// Doctype:
|
|
const doctypeMatch = html.match(doctype);
|
|
if (doctypeMatch) {
|
|
advance(doctypeMatch[0].length);
|
|
continue
|
|
}
|
|
|
|
// End tag:
|
|
const endTagMatch = html.match(endTag);
|
|
if (endTagMatch) {
|
|
const curIndex = index;
|
|
advance(endTagMatch[0].length);
|
|
parseEndTag(endTagMatch[1], curIndex, index);
|
|
continue
|
|
}
|
|
|
|
// Start tag:
|
|
const startTagMatch = parseStartTag();
|
|
if (startTagMatch) {
|
|
handleStartTag(startTagMatch);
|
|
if (shouldIgnoreFirstNewline(startTagMatch.tagName, html)) {
|
|
advance(1);
|
|
}
|
|
continue
|
|
}
|
|
}
|
|
|
|
let text, rest, next;
|
|
if (textEnd >= 0) {
|
|
rest = html.slice(textEnd);
|
|
while (
|
|
!endTag.test(rest) &&
|
|
!startTagOpen.test(rest) &&
|
|
!comment.test(rest) &&
|
|
!conditionalComment.test(rest)
|
|
) {
|
|
// < in plain text, be forgiving and treat it as text
|
|
next = rest.indexOf('<', 1);
|
|
if (next < 0) break
|
|
textEnd += next;
|
|
rest = html.slice(textEnd);
|
|
}
|
|
text = html.substring(0, textEnd);
|
|
}
|
|
|
|
if (textEnd < 0) {
|
|
text = html;
|
|
}
|
|
|
|
if (text) {
|
|
advance(text.length);
|
|
}
|
|
|
|
if (options.chars && text) {
|
|
options.chars(text, index - text.length, index);
|
|
}
|
|
} else {
|
|
let endTagLength = 0;
|
|
const stackedTag = lastTag.toLowerCase();
|
|
const reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i'));
|
|
const rest = html.replace(reStackedTag, function (all, text, endTag) {
|
|
endTagLength = endTag.length;
|
|
if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
|
|
text = text
|
|
.replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
|
|
.replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
|
|
}
|
|
if (shouldIgnoreFirstNewline(stackedTag, text)) {
|
|
text = text.slice(1);
|
|
}
|
|
if (options.chars) {
|
|
options.chars(text);
|
|
}
|
|
return ''
|
|
});
|
|
index += html.length - rest.length;
|
|
html = rest;
|
|
parseEndTag(stackedTag, index - endTagLength, index);
|
|
}
|
|
|
|
if (html === last) {
|
|
options.chars && options.chars(html);
|
|
if (!stack.length && options.warn) {
|
|
options.warn(`Mal-formatted tag at end of template: "${html}"`, { start: index + html.length });
|
|
}
|
|
break
|
|
}
|
|
}
|
|
|
|
// Clean up any remaining tags
|
|
parseEndTag();
|
|
|
|
function advance (n) {
|
|
index += n;
|
|
html = html.substring(n);
|
|
}
|
|
|
|
function parseStartTag () {
|
|
const start = html.match(startTagOpen);
|
|
if (start) {
|
|
const match = {
|
|
tagName: start[1],
|
|
attrs: [],
|
|
start: index
|
|
};
|
|
advance(start[0].length);
|
|
let end, attr;
|
|
while (!(end = html.match(startTagClose)) && (attr = html.match(dynamicArgAttribute) || html.match(attribute))) {
|
|
attr.start = index;
|
|
advance(attr[0].length);
|
|
attr.end = index;
|
|
match.attrs.push(attr);
|
|
}
|
|
if (end) {
|
|
match.unarySlash = end[1];
|
|
advance(end[0].length);
|
|
match.end = index;
|
|
return match
|
|
}
|
|
}
|
|
}
|
|
|
|
function handleStartTag (match) {
|
|
const tagName = match.tagName;
|
|
const unarySlash = match.unarySlash;
|
|
|
|
if (expectHTML) {
|
|
if (lastTag === 'p' && isNonPhrasingTag(tagName)) {
|
|
parseEndTag(lastTag);
|
|
}
|
|
if (canBeLeftOpenTag$$1(tagName) && lastTag === tagName) {
|
|
parseEndTag(tagName);
|
|
}
|
|
}
|
|
|
|
const unary = isUnaryTag$$1(tagName) || !!unarySlash;
|
|
|
|
const l = match.attrs.length;
|
|
const attrs = new Array(l);
|
|
for (let i = 0; i < l; i++) {
|
|
const args = match.attrs[i];
|
|
const value = args[3] || args[4] || args[5] || '';
|
|
const shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
|
|
? options.shouldDecodeNewlinesForHref
|
|
: options.shouldDecodeNewlines;
|
|
attrs[i] = {
|
|
name: args[1],
|
|
value: decodeAttr(value, shouldDecodeNewlines)
|
|
};
|
|
if (options.outputSourceRange) {
|
|
attrs[i].start = args.start + args[0].match(/^\s*/).length;
|
|
attrs[i].end = args.end;
|
|
}
|
|
}
|
|
|
|
if (!unary) {
|
|
stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs, start: match.start, end: match.end });
|
|
lastTag = tagName;
|
|
}
|
|
|
|
if (options.start) {
|
|
options.start(tagName, attrs, unary, match.start, match.end);
|
|
}
|
|
}
|
|
|
|
function parseEndTag (tagName, start, end) {
|
|
let pos, lowerCasedTagName;
|
|
if (start == null) start = index;
|
|
if (end == null) end = index;
|
|
|
|
// Find the closest opened tag of the same type
|
|
if (tagName) {
|
|
lowerCasedTagName = tagName.toLowerCase();
|
|
for (pos = stack.length - 1; pos >= 0; pos--) {
|
|
if (stack[pos].lowerCasedTag === lowerCasedTagName) {
|
|
break
|
|
}
|
|
}
|
|
} else {
|
|
// If no tag name is provided, clean shop
|
|
pos = 0;
|
|
}
|
|
|
|
if (pos >= 0) {
|
|
// Close all the open elements, up the stack
|
|
for (let i = stack.length - 1; i >= pos; i--) {
|
|
if (i > pos || !tagName &&
|
|
options.warn
|
|
) {
|
|
options.warn(
|
|
`tag <${stack[i].tag}> has no matching end tag.`,
|
|
{ start: stack[i].start, end: stack[i].end }
|
|
);
|
|
}
|
|
if (options.end) {
|
|
options.end(stack[i].tag, start, end);
|
|
}
|
|
}
|
|
|
|
// Remove the open elements from the stack
|
|
stack.length = pos;
|
|
lastTag = pos && stack[pos - 1].tag;
|
|
} else if (lowerCasedTagName === 'br') {
|
|
if (options.start) {
|
|
options.start(tagName, [], true, start, end);
|
|
}
|
|
} else if (lowerCasedTagName === 'p') {
|
|
if (options.start) {
|
|
options.start(tagName, [], false, start, end);
|
|
}
|
|
if (options.end) {
|
|
options.end(tagName, start, end);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
const onRE = /^@|^v-on:/;
|
|
const dirRE = /^v-|^@|^:|^#/;
|
|
const forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
|
|
const forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
|
|
const stripParensRE = /^\(|\)$/g;
|
|
const dynamicArgRE = /^\[.*\]$/;
|
|
|
|
const argRE = /:(.*)$/;
|
|
const bindRE = /^:|^\.|^v-bind:/;
|
|
const modifierRE = /\.[^.\]]+(?=[^\]]*$)/g;
|
|
|
|
const slotRE = /^v-slot(:|$)|^#/;
|
|
|
|
const lineBreakRE = /[\r\n]/;
|
|
const whitespaceRE$1 = /\s+/g;
|
|
|
|
const invalidAttributeRE = /[\s"'<>\/=]/;
|
|
|
|
const decodeHTMLCached = cached(he.decode);
|
|
|
|
const emptySlotScopeToken = `_empty_`;
|
|
|
|
// configurable state
|
|
let warn$2;
|
|
let delimiters;
|
|
let transforms;
|
|
let preTransforms;
|
|
let postTransforms;
|
|
let platformIsPreTag;
|
|
let platformMustUseProp;
|
|
let platformGetTagNamespace;
|
|
let maybeComponent;
|
|
|
|
function createASTElement (
|
|
tag,
|
|
attrs,
|
|
parent
|
|
) {
|
|
return {
|
|
type: 1,
|
|
tag,
|
|
attrsList: attrs,
|
|
attrsMap: makeAttrsMap(attrs),
|
|
rawAttrsMap: {},
|
|
parent,
|
|
children: []
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Convert HTML string to AST.
|
|
*/
|
|
function parse (
|
|
template,
|
|
options
|
|
) {
|
|
warn$2 = options.warn || baseWarn;
|
|
|
|
platformIsPreTag = options.isPreTag || no;
|
|
platformMustUseProp = options.mustUseProp || no;
|
|
platformGetTagNamespace = options.getTagNamespace || no;
|
|
const isReservedTag = options.isReservedTag || no;
|
|
maybeComponent = (el) => !!el.component || !isReservedTag(el.tag);
|
|
|
|
transforms = pluckModuleFunction(options.modules, 'transformNode');
|
|
preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
|
|
postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
|
|
|
|
delimiters = options.delimiters;
|
|
|
|
const stack = [];
|
|
const preserveWhitespace = options.preserveWhitespace !== false;
|
|
const whitespaceOption = options.whitespace;
|
|
let root;
|
|
let currentParent;
|
|
let inVPre = false;
|
|
let inPre = false;
|
|
let warned = false;
|
|
|
|
function warnOnce (msg, range) {
|
|
if (!warned) {
|
|
warned = true;
|
|
warn$2(msg, range);
|
|
}
|
|
}
|
|
|
|
function closeElement (element) {
|
|
trimEndingWhitespace(element);
|
|
if (!inVPre && !element.processed) {
|
|
element = processElement(element, options);
|
|
}
|
|
// tree management
|
|
if (!stack.length && element !== root) {
|
|
// allow root elements with v-if, v-else-if and v-else
|
|
if (root.if && (element.elseif || element.else)) {
|
|
{
|
|
checkRootConstraints(element);
|
|
}
|
|
addIfCondition(root, {
|
|
exp: element.elseif,
|
|
block: element
|
|
});
|
|
} else {
|
|
warnOnce(
|
|
`Component template should contain exactly one root element. ` +
|
|
`If you are using v-if on multiple elements, ` +
|
|
`use v-else-if to chain them instead.`,
|
|
{ start: element.start }
|
|
);
|
|
}
|
|
}
|
|
if (currentParent && !element.forbidden) {
|
|
if (element.elseif || element.else) {
|
|
processIfConditions(element, currentParent);
|
|
} else {
|
|
if (element.slotScope) {
|
|
// scoped slot
|
|
// keep it in the children list so that v-else(-if) conditions can
|
|
// find it as the prev node.
|
|
const name = element.slotTarget || '"default"'
|
|
;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
|
|
}
|
|
currentParent.children.push(element);
|
|
element.parent = currentParent;
|
|
}
|
|
}
|
|
|
|
// final children cleanup
|
|
// filter out scoped slots
|
|
element.children = element.children.filter(c => !(c).slotScope);
|
|
// remove trailing whitespace node again
|
|
trimEndingWhitespace(element);
|
|
|
|
// check pre state
|
|
if (element.pre) {
|
|
inVPre = false;
|
|
}
|
|
if (platformIsPreTag(element.tag)) {
|
|
inPre = false;
|
|
}
|
|
// apply post-transforms
|
|
for (let i = 0; i < postTransforms.length; i++) {
|
|
postTransforms[i](element, options);
|
|
}
|
|
}
|
|
|
|
function trimEndingWhitespace (el) {
|
|
// remove trailing whitespace node
|
|
if (!inPre) {
|
|
let lastNode;
|
|
while (
|
|
(lastNode = el.children[el.children.length - 1]) &&
|
|
lastNode.type === 3 &&
|
|
lastNode.text === ' '
|
|
) {
|
|
el.children.pop();
|
|
}
|
|
}
|
|
}
|
|
|
|
function checkRootConstraints (el) {
|
|
if (el.tag === 'slot' || el.tag === 'template') {
|
|
warnOnce(
|
|
`Cannot use <${el.tag}> as component root element because it may ` +
|
|
'contain multiple nodes.',
|
|
{ start: el.start }
|
|
);
|
|
}
|
|
if (el.attrsMap.hasOwnProperty('v-for')) {
|
|
warnOnce(
|
|
'Cannot use v-for on stateful component root element because ' +
|
|
'it renders multiple elements.',
|
|
el.rawAttrsMap['v-for']
|
|
);
|
|
}
|
|
}
|
|
|
|
parseHTML(template, {
|
|
warn: warn$2,
|
|
expectHTML: options.expectHTML,
|
|
isUnaryTag: options.isUnaryTag,
|
|
canBeLeftOpenTag: options.canBeLeftOpenTag,
|
|
shouldDecodeNewlines: options.shouldDecodeNewlines,
|
|
shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
|
|
shouldKeepComment: options.comments,
|
|
outputSourceRange: options.outputSourceRange,
|
|
start (tag, attrs, unary, start, end) {
|
|
// check namespace.
|
|
// inherit parent ns if there is one
|
|
const ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
|
|
|
|
// handle IE svg bug
|
|
/* istanbul ignore if */
|
|
if (isIE && ns === 'svg') {
|
|
attrs = guardIESVGBug(attrs);
|
|
}
|
|
|
|
let element = createASTElement(tag, attrs, currentParent);
|
|
if (ns) {
|
|
element.ns = ns;
|
|
}
|
|
|
|
{
|
|
if (options.outputSourceRange) {
|
|
element.start = start;
|
|
element.end = end;
|
|
element.rawAttrsMap = element.attrsList.reduce((cumulated, attr) => {
|
|
cumulated[attr.name] = attr;
|
|
return cumulated
|
|
}, {});
|
|
}
|
|
attrs.forEach(attr => {
|
|
if (invalidAttributeRE.test(attr.name)) {
|
|
warn$2(
|
|
`Invalid dynamic argument expression: attribute names cannot contain ` +
|
|
`spaces, quotes, <, >, / or =.`,
|
|
{
|
|
start: attr.start + attr.name.indexOf(`[`),
|
|
end: attr.start + attr.name.length
|
|
}
|
|
);
|
|
}
|
|
});
|
|
}
|
|
|
|
if (isForbiddenTag(element) && !isServerRendering()) {
|
|
element.forbidden = true;
|
|
warn$2(
|
|
'Templates should only be responsible for mapping the state to the ' +
|
|
'UI. Avoid placing tags with side-effects in your templates, such as ' +
|
|
`<${tag}>` + ', as they will not be parsed.',
|
|
{ start: element.start }
|
|
);
|
|
}
|
|
|
|
// apply pre-transforms
|
|
for (let i = 0; i < preTransforms.length; i++) {
|
|
element = preTransforms[i](element, options) || element;
|
|
}
|
|
|
|
if (!inVPre) {
|
|
processPre(element);
|
|
if (element.pre) {
|
|
inVPre = true;
|
|
}
|
|
}
|
|
if (platformIsPreTag(element.tag)) {
|
|
inPre = true;
|
|
}
|
|
if (inVPre) {
|
|
processRawAttrs(element);
|
|
} else if (!element.processed) {
|
|
// structural directives
|
|
processFor(element);
|
|
processIf(element);
|
|
processOnce(element);
|
|
}
|
|
|
|
if (!root) {
|
|
root = element;
|
|
{
|
|
checkRootConstraints(root);
|
|
}
|
|
}
|
|
|
|
if (!unary) {
|
|
currentParent = element;
|
|
stack.push(element);
|
|
} else {
|
|
closeElement(element);
|
|
}
|
|
},
|
|
|
|
end (tag, start, end) {
|
|
const element = stack[stack.length - 1];
|
|
// pop stack
|
|
stack.length -= 1;
|
|
currentParent = stack[stack.length - 1];
|
|
if (options.outputSourceRange) {
|
|
element.end = end;
|
|
}
|
|
closeElement(element);
|
|
},
|
|
|
|
chars (text, start, end) {
|
|
if (!currentParent) {
|
|
{
|
|
if (text === template) {
|
|
warnOnce(
|
|
'Component template requires a root element, rather than just text.',
|
|
{ start }
|
|
);
|
|
} else if ((text = text.trim())) {
|
|
warnOnce(
|
|
`text "${text}" outside root element will be ignored.`,
|
|
{ start }
|
|
);
|
|
}
|
|
}
|
|
return
|
|
}
|
|
// IE textarea placeholder bug
|
|
/* istanbul ignore if */
|
|
if (isIE &&
|
|
currentParent.tag === 'textarea' &&
|
|
currentParent.attrsMap.placeholder === text
|
|
) {
|
|
return
|
|
}
|
|
const children = currentParent.children;
|
|
if (inPre || text.trim()) {
|
|
text = isTextTag(currentParent) ? text : decodeHTMLCached(text);
|
|
} else if (!children.length) {
|
|
// remove the whitespace-only node right after an opening tag
|
|
text = '';
|
|
} else if (whitespaceOption) {
|
|
if (whitespaceOption === 'condense') {
|
|
// in condense mode, remove the whitespace node if it contains
|
|
// line break, otherwise condense to a single space
|
|
text = lineBreakRE.test(text) ? '' : ' ';
|
|
} else {
|
|
text = ' ';
|
|
}
|
|
} else {
|
|
text = preserveWhitespace ? ' ' : '';
|
|
}
|
|
if (text) {
|
|
if (!inPre && whitespaceOption === 'condense') {
|
|
// condense consecutive whitespaces into single space
|
|
text = text.replace(whitespaceRE$1, ' ');
|
|
}
|
|
let res;
|
|
let child;
|
|
if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
|
|
child = {
|
|
type: 2,
|
|
expression: res.expression,
|
|
tokens: res.tokens,
|
|
text
|
|
};
|
|
} else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
|
|
child = {
|
|
type: 3,
|
|
text
|
|
};
|
|
}
|
|
if (child) {
|
|
if (options.outputSourceRange) {
|
|
child.start = start;
|
|
child.end = end;
|
|
}
|
|
children.push(child);
|
|
}
|
|
}
|
|
},
|
|
comment (text, start, end) {
|
|
// adding anyting as a sibling to the root node is forbidden
|
|
// comments should still be allowed, but ignored
|
|
if (currentParent) {
|
|
const child = {
|
|
type: 3,
|
|
text,
|
|
isComment: true
|
|
};
|
|
if (options.outputSourceRange) {
|
|
child.start = start;
|
|
child.end = end;
|
|
}
|
|
currentParent.children.push(child);
|
|
}
|
|
}
|
|
});
|
|
return root
|
|
}
|
|
|
|
function processPre (el) {
|
|
if (getAndRemoveAttr(el, 'v-pre') != null) {
|
|
el.pre = true;
|
|
}
|
|
}
|
|
|
|
function processRawAttrs (el) {
|
|
const list = el.attrsList;
|
|
const len = list.length;
|
|
if (len) {
|
|
const attrs = el.attrs = new Array(len);
|
|
for (let i = 0; i < len; i++) {
|
|
attrs[i] = {
|
|
name: list[i].name,
|
|
value: JSON.stringify(list[i].value)
|
|
};
|
|
if (list[i].start != null) {
|
|
attrs[i].start = list[i].start;
|
|
attrs[i].end = list[i].end;
|
|
}
|
|
}
|
|
} else if (!el.pre) {
|
|
// non root node in pre blocks with no attributes
|
|
el.plain = true;
|
|
}
|
|
}
|
|
|
|
function processElement (
|
|
element,
|
|
options
|
|
) {
|
|
processKey(element);
|
|
|
|
// determine whether this is a plain element after
|
|
// removing structural attributes
|
|
element.plain = (
|
|
!element.key &&
|
|
!element.scopedSlots &&
|
|
!element.attrsList.length
|
|
);
|
|
|
|
processRef(element);
|
|
processSlotContent(element);
|
|
processSlotOutlet(element);
|
|
processComponent(element);
|
|
for (let i = 0; i < transforms.length; i++) {
|
|
element = transforms[i](element, options) || element;
|
|
}
|
|
processAttrs(element);
|
|
return element
|
|
}
|
|
|
|
function processKey (el) {
|
|
const exp = getBindingAttr(el, 'key');
|
|
if (exp) {
|
|
{
|
|
if (el.tag === 'template') {
|
|
warn$2(
|
|
`<template> cannot be keyed. Place the key on real elements instead.`,
|
|
getRawBindingAttr(el, 'key')
|
|
);
|
|
}
|
|
if (el.for) {
|
|
const iterator = el.iterator2 || el.iterator1;
|
|
const parent = el.parent;
|
|
if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
|
|
warn$2(
|
|
`Do not use v-for index as key on <transition-group> children, ` +
|
|
`this is the same as not using keys.`,
|
|
getRawBindingAttr(el, 'key'),
|
|
true /* tip */
|
|
);
|
|
}
|
|
}
|
|
}
|
|
el.key = exp;
|
|
}
|
|
}
|
|
|
|
function processRef (el) {
|
|
const ref = getBindingAttr(el, 'ref');
|
|
if (ref) {
|
|
el.ref = ref;
|
|
el.refInFor = checkInFor(el);
|
|
}
|
|
}
|
|
|
|
function processFor (el) {
|
|
let exp;
|
|
if ((exp = getAndRemoveAttr(el, 'v-for'))) {
|
|
const res = parseFor(exp);
|
|
if (res) {
|
|
extend(el, res);
|
|
} else {
|
|
warn$2(
|
|
`Invalid v-for expression: ${exp}`,
|
|
el.rawAttrsMap['v-for']
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
function parseFor (exp) {
|
|
const inMatch = exp.match(forAliasRE);
|
|
if (!inMatch) return
|
|
const res = {};
|
|
res.for = inMatch[2].trim();
|
|
const alias = inMatch[1].trim().replace(stripParensRE, '');
|
|
const iteratorMatch = alias.match(forIteratorRE);
|
|
if (iteratorMatch) {
|
|
res.alias = alias.replace(forIteratorRE, '').trim();
|
|
res.iterator1 = iteratorMatch[1].trim();
|
|
if (iteratorMatch[2]) {
|
|
res.iterator2 = iteratorMatch[2].trim();
|
|
}
|
|
} else {
|
|
res.alias = alias;
|
|
}
|
|
return res
|
|
}
|
|
|
|
function processIf (el) {
|
|
const exp = getAndRemoveAttr(el, 'v-if');
|
|
if (exp) {
|
|
el.if = exp;
|
|
addIfCondition(el, {
|
|
exp: exp,
|
|
block: el
|
|
});
|
|
} else {
|
|
if (getAndRemoveAttr(el, 'v-else') != null) {
|
|
el.else = true;
|
|
}
|
|
const elseif = getAndRemoveAttr(el, 'v-else-if');
|
|
if (elseif) {
|
|
el.elseif = elseif;
|
|
}
|
|
}
|
|
}
|
|
|
|
function processIfConditions (el, parent) {
|
|
const prev = findPrevElement(parent.children);
|
|
if (prev && prev.if) {
|
|
addIfCondition(prev, {
|
|
exp: el.elseif,
|
|
block: el
|
|
});
|
|
} else {
|
|
warn$2(
|
|
`v-${el.elseif ? ('else-if="' + el.elseif + '"') : 'else'} ` +
|
|
`used on element <${el.tag}> without corresponding v-if.`,
|
|
el.rawAttrsMap[el.elseif ? 'v-else-if' : 'v-else']
|
|
);
|
|
}
|
|
}
|
|
|
|
function findPrevElement (children) {
|
|
let i = children.length;
|
|
while (i--) {
|
|
if (children[i].type === 1) {
|
|
return children[i]
|
|
} else {
|
|
if (children[i].text !== ' ') {
|
|
warn$2(
|
|
`text "${children[i].text.trim()}" between v-if and v-else(-if) ` +
|
|
`will be ignored.`,
|
|
children[i]
|
|
);
|
|
}
|
|
children.pop();
|
|
}
|
|
}
|
|
}
|
|
|
|
function addIfCondition (el, condition) {
|
|
if (!el.ifConditions) {
|
|
el.ifConditions = [];
|
|
}
|
|
el.ifConditions.push(condition);
|
|
}
|
|
|
|
function processOnce (el) {
|
|
const once$$1 = getAndRemoveAttr(el, 'v-once');
|
|
if (once$$1 != null) {
|
|
el.once = true;
|
|
}
|
|
}
|
|
|
|
// handle content being passed to a component as slot,
|
|
// e.g. <template slot="xxx">, <div slot-scope="xxx">
|
|
function processSlotContent (el) {
|
|
let slotScope;
|
|
if (el.tag === 'template') {
|
|
slotScope = getAndRemoveAttr(el, 'scope');
|
|
/* istanbul ignore if */
|
|
if (slotScope) {
|
|
warn$2(
|
|
`the "scope" attribute for scoped slots have been deprecated and ` +
|
|
`replaced by "slot-scope" since 2.5. The new "slot-scope" attribute ` +
|
|
`can also be used on plain elements in addition to <template> to ` +
|
|
`denote scoped slots.`,
|
|
el.rawAttrsMap['scope'],
|
|
true
|
|
);
|
|
}
|
|
el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
|
|
} else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
|
|
/* istanbul ignore if */
|
|
if (el.attrsMap['v-for']) {
|
|
warn$2(
|
|
`Ambiguous combined usage of slot-scope and v-for on <${el.tag}> ` +
|
|
`(v-for takes higher priority). Use a wrapper <template> for the ` +
|
|
`scoped slot to make it clearer.`,
|
|
el.rawAttrsMap['slot-scope'],
|
|
true
|
|
);
|
|
}
|
|
el.slotScope = slotScope;
|
|
}
|
|
|
|
// slot="xxx"
|
|
const slotTarget = getBindingAttr(el, 'slot');
|
|
if (slotTarget) {
|
|
el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
|
|
el.slotTargetDynamic = !!(el.attrsMap[':slot'] || el.attrsMap['v-bind:slot']);
|
|
// preserve slot as an attribute for native shadow DOM compat
|
|
// only for non-scoped slots.
|
|
if (el.tag !== 'template' && !el.slotScope) {
|
|
addAttr(el, 'slot', slotTarget, getRawBindingAttr(el, 'slot'));
|
|
}
|
|
}
|
|
|
|
// 2.6 v-slot syntax
|
|
{
|
|
if (el.tag === 'template') {
|
|
// v-slot on <template>
|
|
const slotBinding = getAndRemoveAttrByRegex(el, slotRE);
|
|
if (slotBinding) {
|
|
{
|
|
if (el.slotTarget || el.slotScope) {
|
|
warn$2(
|
|
`Unexpected mixed usage of different slot syntaxes.`,
|
|
el
|
|
);
|
|
}
|
|
if (el.parent && !maybeComponent(el.parent)) {
|
|
warn$2(
|
|
`<template v-slot> can only appear at the root level inside ` +
|
|
`the receiving component`,
|
|
el
|
|
);
|
|
}
|
|
}
|
|
const { name, dynamic } = getSlotName(slotBinding);
|
|
el.slotTarget = name;
|
|
el.slotTargetDynamic = dynamic;
|
|
el.slotScope = slotBinding.value || emptySlotScopeToken; // force it into a scoped slot for perf
|
|
}
|
|
} else {
|
|
// v-slot on component, denotes default slot
|
|
const slotBinding = getAndRemoveAttrByRegex(el, slotRE);
|
|
if (slotBinding) {
|
|
{
|
|
if (!maybeComponent(el)) {
|
|
warn$2(
|
|
`v-slot can only be used on components or <template>.`,
|
|
slotBinding
|
|
);
|
|
}
|
|
if (el.slotScope || el.slotTarget) {
|
|
warn$2(
|
|
`Unexpected mixed usage of different slot syntaxes.`,
|
|
el
|
|
);
|
|
}
|
|
if (el.scopedSlots) {
|
|
warn$2(
|
|
`To avoid scope ambiguity, the default slot should also use ` +
|
|
`<template> syntax when there are other named slots.`,
|
|
slotBinding
|
|
);
|
|
}
|
|
}
|
|
// add the component's children to its default slot
|
|
const slots = el.scopedSlots || (el.scopedSlots = {});
|
|
const { name, dynamic } = getSlotName(slotBinding);
|
|
const slotContainer = slots[name] = createASTElement('template', [], el);
|
|
slotContainer.slotTarget = name;
|
|
slotContainer.slotTargetDynamic = dynamic;
|
|
slotContainer.children = el.children.filter((c) => {
|
|
if (!c.slotScope) {
|
|
c.parent = slotContainer;
|
|
return true
|
|
}
|
|
});
|
|
slotContainer.slotScope = slotBinding.value || emptySlotScopeToken;
|
|
// remove children as they are returned from scopedSlots now
|
|
el.children = [];
|
|
// mark el non-plain so data gets generated
|
|
el.plain = false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function getSlotName (binding) {
|
|
let name = binding.name.replace(slotRE, '');
|
|
if (!name) {
|
|
if (binding.name[0] !== '#') {
|
|
name = 'default';
|
|
} else {
|
|
warn$2(
|
|
`v-slot shorthand syntax requires a slot name.`,
|
|
binding
|
|
);
|
|
}
|
|
}
|
|
return dynamicArgRE.test(name)
|
|
// dynamic [name]
|
|
? { name: name.slice(1, -1), dynamic: true }
|
|
// static name
|
|
: { name: `"${name}"`, dynamic: false }
|
|
}
|
|
|
|
// handle <slot/> outlets
|
|
function processSlotOutlet (el) {
|
|
if (el.tag === 'slot') {
|
|
el.slotName = getBindingAttr(el, 'name');
|
|
if (el.key) {
|
|
warn$2(
|
|
`\`key\` does not work on <slot> because slots are abstract outlets ` +
|
|
`and can possibly expand into multiple elements. ` +
|
|
`Use the key on a wrapping element instead.`,
|
|
getRawBindingAttr(el, 'key')
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
function processComponent (el) {
|
|
let binding;
|
|
if ((binding = getBindingAttr(el, 'is'))) {
|
|
el.component = binding;
|
|
}
|
|
if (getAndRemoveAttr(el, 'inline-template') != null) {
|
|
el.inlineTemplate = true;
|
|
}
|
|
}
|
|
|
|
function processAttrs (el) {
|
|
const list = el.attrsList;
|
|
let i, l, name, rawName, value, modifiers, syncGen, isDynamic;
|
|
for (i = 0, l = list.length; i < l; i++) {
|
|
name = rawName = list[i].name;
|
|
value = list[i].value;
|
|
if (dirRE.test(name)) {
|
|
// mark element as dynamic
|
|
el.hasBindings = true;
|
|
// modifiers
|
|
modifiers = parseModifiers(name.replace(dirRE, ''));
|
|
// support .foo shorthand syntax for the .prop modifier
|
|
if (modifiers) {
|
|
name = name.replace(modifierRE, '');
|
|
}
|
|
if (bindRE.test(name)) { // v-bind
|
|
name = name.replace(bindRE, '');
|
|
value = parseFilters(value);
|
|
isDynamic = dynamicArgRE.test(name);
|
|
if (isDynamic) {
|
|
name = name.slice(1, -1);
|
|
}
|
|
if (
|
|
value.trim().length === 0
|
|
) {
|
|
warn$2(
|
|
`The value for a v-bind expression cannot be empty. Found in "v-bind:${name}"`
|
|
);
|
|
}
|
|
if (modifiers) {
|
|
if (modifiers.prop && !isDynamic) {
|
|
name = camelize(name);
|
|
if (name === 'innerHtml') name = 'innerHTML';
|
|
}
|
|
if (modifiers.camel && !isDynamic) {
|
|
name = camelize(name);
|
|
}
|
|
if (modifiers.sync) {
|
|
syncGen = genAssignmentCode(value, `$event`);
|
|
if (!isDynamic) {
|
|
addHandler(
|
|
el,
|
|
`update:${camelize(name)}`,
|
|
syncGen,
|
|
null,
|
|
false,
|
|
warn$2,
|
|
list[i]
|
|
);
|
|
if (hyphenate(name) !== camelize(name)) {
|
|
addHandler(
|
|
el,
|
|
`update:${hyphenate(name)}`,
|
|
syncGen,
|
|
null,
|
|
false,
|
|
warn$2,
|
|
list[i]
|
|
);
|
|
}
|
|
} else {
|
|
// handler w/ dynamic event name
|
|
addHandler(
|
|
el,
|
|
`"update:"+(${name})`,
|
|
syncGen,
|
|
null,
|
|
false,
|
|
warn$2,
|
|
list[i],
|
|
true // dynamic
|
|
);
|
|
}
|
|
}
|
|
}
|
|
if ((modifiers && modifiers.prop) || (
|
|
!el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
|
|
)) {
|
|
addProp(el, name, value, list[i], isDynamic);
|
|
} else {
|
|
addAttr(el, name, value, list[i], isDynamic);
|
|
}
|
|
} else if (onRE.test(name)) { // v-on
|
|
name = name.replace(onRE, '');
|
|
isDynamic = dynamicArgRE.test(name);
|
|
if (isDynamic) {
|
|
name = name.slice(1, -1);
|
|
}
|
|
addHandler(el, name, value, modifiers, false, warn$2, list[i], isDynamic);
|
|
} else { // normal directives
|
|
name = name.replace(dirRE, '');
|
|
// parse arg
|
|
const argMatch = name.match(argRE);
|
|
let arg = argMatch && argMatch[1];
|
|
isDynamic = false;
|
|
if (arg) {
|
|
name = name.slice(0, -(arg.length + 1));
|
|
if (dynamicArgRE.test(arg)) {
|
|
arg = arg.slice(1, -1);
|
|
isDynamic = true;
|
|
}
|
|
}
|
|
addDirective(el, name, rawName, value, arg, isDynamic, modifiers, list[i]);
|
|
if (name === 'model') {
|
|
checkForAliasModel(el, value);
|
|
}
|
|
}
|
|
} else {
|
|
// literal attribute
|
|
{
|
|
const res = parseText(value, delimiters);
|
|
if (res) {
|
|
warn$2(
|
|
`${name}="${value}": ` +
|
|
'Interpolation inside attributes has been removed. ' +
|
|
'Use v-bind or the colon shorthand instead. For example, ' +
|
|
'instead of <div id="{{ val }}">, use <div :id="val">.',
|
|
list[i]
|
|
);
|
|
}
|
|
}
|
|
addAttr(el, name, JSON.stringify(value), list[i]);
|
|
// #6887 firefox doesn't update muted state if set via attribute
|
|
// even immediately after element creation
|
|
if (!el.component &&
|
|
name === 'muted' &&
|
|
platformMustUseProp(el.tag, el.attrsMap.type, name)) {
|
|
addProp(el, name, 'true', list[i]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function checkInFor (el) {
|
|
let parent = el;
|
|
while (parent) {
|
|
if (parent.for !== undefined) {
|
|
return true
|
|
}
|
|
parent = parent.parent;
|
|
}
|
|
return false
|
|
}
|
|
|
|
function parseModifiers (name) {
|
|
const match = name.match(modifierRE);
|
|
if (match) {
|
|
const ret = {};
|
|
match.forEach(m => { ret[m.slice(1)] = true; });
|
|
return ret
|
|
}
|
|
}
|
|
|
|
function makeAttrsMap (attrs) {
|
|
const map = {};
|
|
for (let i = 0, l = attrs.length; i < l; i++) {
|
|
if (
|
|
map[attrs[i].name] && !isIE && !isEdge
|
|
) {
|
|
warn$2('duplicate attribute: ' + attrs[i].name, attrs[i]);
|
|
}
|
|
map[attrs[i].name] = attrs[i].value;
|
|
}
|
|
return map
|
|
}
|
|
|
|
// for script (e.g. type="x/template") or style, do not decode content
|
|
function isTextTag (el) {
|
|
return el.tag === 'script' || el.tag === 'style'
|
|
}
|
|
|
|
function isForbiddenTag (el) {
|
|
return (
|
|
el.tag === 'style' ||
|
|
(el.tag === 'script' && (
|
|
!el.attrsMap.type ||
|
|
el.attrsMap.type === 'text/javascript'
|
|
))
|
|
)
|
|
}
|
|
|
|
const ieNSBug = /^xmlns:NS\d+/;
|
|
const ieNSPrefix = /^NS\d+:/;
|
|
|
|
/* istanbul ignore next */
|
|
function guardIESVGBug (attrs) {
|
|
const res = [];
|
|
for (let i = 0; i < attrs.length; i++) {
|
|
const attr = attrs[i];
|
|
if (!ieNSBug.test(attr.name)) {
|
|
attr.name = attr.name.replace(ieNSPrefix, '');
|
|
res.push(attr);
|
|
}
|
|
}
|
|
return res
|
|
}
|
|
|
|
function checkForAliasModel (el, value) {
|
|
let _el = el;
|
|
while (_el) {
|
|
if (_el.for && _el.alias === value) {
|
|
warn$2(
|
|
`<${el.tag} v-model="${value}">: ` +
|
|
`You are binding v-model directly to a v-for iteration alias. ` +
|
|
`This will not be able to modify the v-for source array because ` +
|
|
`writing to the alias is like modifying a function local variable. ` +
|
|
`Consider using an array of objects and use v-model on an object property instead.`,
|
|
el.rawAttrsMap['v-model']
|
|
);
|
|
}
|
|
_el = _el.parent;
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
function preTransformNode (el, options) {
|
|
if (el.tag === 'input') {
|
|
const map = el.attrsMap;
|
|
if (!map['v-model']) {
|
|
return
|
|
}
|
|
|
|
let typeBinding;
|
|
if (map[':type'] || map['v-bind:type']) {
|
|
typeBinding = getBindingAttr(el, 'type');
|
|
}
|
|
if (!map.type && !typeBinding && map['v-bind']) {
|
|
typeBinding = `(${map['v-bind']}).type`;
|
|
}
|
|
|
|
if (typeBinding) {
|
|
const ifCondition = getAndRemoveAttr(el, 'v-if', true);
|
|
const ifConditionExtra = ifCondition ? `&&(${ifCondition})` : ``;
|
|
const hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
|
|
const elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
|
|
// 1. checkbox
|
|
const branch0 = cloneASTElement(el);
|
|
// process for on the main node
|
|
processFor(branch0);
|
|
addRawAttr(branch0, 'type', 'checkbox');
|
|
processElement(branch0, options);
|
|
branch0.processed = true; // prevent it from double-processed
|
|
branch0.if = `(${typeBinding})==='checkbox'` + ifConditionExtra;
|
|
addIfCondition(branch0, {
|
|
exp: branch0.if,
|
|
block: branch0
|
|
});
|
|
// 2. add radio else-if condition
|
|
const branch1 = cloneASTElement(el);
|
|
getAndRemoveAttr(branch1, 'v-for', true);
|
|
addRawAttr(branch1, 'type', 'radio');
|
|
processElement(branch1, options);
|
|
addIfCondition(branch0, {
|
|
exp: `(${typeBinding})==='radio'` + ifConditionExtra,
|
|
block: branch1
|
|
});
|
|
// 3. other
|
|
const branch2 = cloneASTElement(el);
|
|
getAndRemoveAttr(branch2, 'v-for', true);
|
|
addRawAttr(branch2, ':type', typeBinding);
|
|
processElement(branch2, options);
|
|
addIfCondition(branch0, {
|
|
exp: ifCondition,
|
|
block: branch2
|
|
});
|
|
|
|
if (hasElse) {
|
|
branch0.else = true;
|
|
} else if (elseIfCondition) {
|
|
branch0.elseif = elseIfCondition;
|
|
}
|
|
|
|
return branch0
|
|
}
|
|
}
|
|
}
|
|
|
|
function cloneASTElement (el) {
|
|
return createASTElement(el.tag, el.attrsList.slice(), el.parent)
|
|
}
|
|
|
|
var model$1 = {
|
|
preTransformNode
|
|
};
|
|
|
|
var modules$1 = [
|
|
klass$1,
|
|
style$1,
|
|
model$1
|
|
];
|
|
|
|
/* */
|
|
|
|
function text (el, dir) {
|
|
if (dir.value) {
|
|
addProp(el, 'textContent', `_s(${dir.value})`, dir);
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
function html (el, dir) {
|
|
if (dir.value) {
|
|
addProp(el, 'innerHTML', `_s(${dir.value})`, dir);
|
|
}
|
|
}
|
|
|
|
var directives$1 = {
|
|
model,
|
|
text,
|
|
html
|
|
};
|
|
|
|
/* */
|
|
|
|
const baseOptions = {
|
|
expectHTML: true,
|
|
modules: modules$1,
|
|
directives: directives$1,
|
|
isPreTag,
|
|
isUnaryTag,
|
|
mustUseProp,
|
|
canBeLeftOpenTag,
|
|
isReservedTag,
|
|
getTagNamespace,
|
|
staticKeys: genStaticKeys(modules$1)
|
|
};
|
|
|
|
/* */
|
|
|
|
let isStaticKey;
|
|
let isPlatformReservedTag;
|
|
|
|
const genStaticKeysCached = cached(genStaticKeys$1);
|
|
|
|
/**
|
|
* Goal of the optimizer: walk the generated template AST tree
|
|
* and detect sub-trees that are purely static, i.e. parts of
|
|
* the DOM that never needs to change.
|
|
*
|
|
* Once we detect these sub-trees, we can:
|
|
*
|
|
* 1. Hoist them into constants, so that we no longer need to
|
|
* create fresh nodes for them on each re-render;
|
|
* 2. Completely skip them in the patching process.
|
|
*/
|
|
function optimize (root, options) {
|
|
if (!root) return
|
|
isStaticKey = genStaticKeysCached(options.staticKeys || '');
|
|
isPlatformReservedTag = options.isReservedTag || no;
|
|
// first pass: mark all non-static nodes.
|
|
markStatic$1(root);
|
|
// second pass: mark static roots.
|
|
markStaticRoots(root, false);
|
|
}
|
|
|
|
function genStaticKeys$1 (keys) {
|
|
return makeMap(
|
|
'type,tag,attrsList,attrsMap,plain,parent,children,attrs,start,end,rawAttrsMap' +
|
|
(keys ? ',' + keys : '')
|
|
)
|
|
}
|
|
|
|
function markStatic$1 (node) {
|
|
node.static = isStatic(node);
|
|
if (node.type === 1) {
|
|
// do not make component slot content static. this avoids
|
|
// 1. components not able to mutate slot nodes
|
|
// 2. static slot content fails for hot-reloading
|
|
if (
|
|
!isPlatformReservedTag(node.tag) &&
|
|
node.tag !== 'slot' &&
|
|
node.attrsMap['inline-template'] == null
|
|
) {
|
|
return
|
|
}
|
|
for (let i = 0, l = node.children.length; i < l; i++) {
|
|
const child = node.children[i];
|
|
markStatic$1(child);
|
|
if (!child.static) {
|
|
node.static = false;
|
|
}
|
|
}
|
|
if (node.ifConditions) {
|
|
for (let i = 1, l = node.ifConditions.length; i < l; i++) {
|
|
const block = node.ifConditions[i].block;
|
|
markStatic$1(block);
|
|
if (!block.static) {
|
|
node.static = false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function markStaticRoots (node, isInFor) {
|
|
if (node.type === 1) {
|
|
if (node.static || node.once) {
|
|
node.staticInFor = isInFor;
|
|
}
|
|
// For a node to qualify as a static root, it should have children that
|
|
// are not just static text. Otherwise the cost of hoisting out will
|
|
// outweigh the benefits and it's better off to just always render it fresh.
|
|
if (node.static && node.children.length && !(
|
|
node.children.length === 1 &&
|
|
node.children[0].type === 3
|
|
)) {
|
|
node.staticRoot = true;
|
|
return
|
|
} else {
|
|
node.staticRoot = false;
|
|
}
|
|
if (node.children) {
|
|
for (let i = 0, l = node.children.length; i < l; i++) {
|
|
markStaticRoots(node.children[i], isInFor || !!node.for);
|
|
}
|
|
}
|
|
if (node.ifConditions) {
|
|
for (let i = 1, l = node.ifConditions.length; i < l; i++) {
|
|
markStaticRoots(node.ifConditions[i].block, isInFor);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function isStatic (node) {
|
|
if (node.type === 2) { // expression
|
|
return false
|
|
}
|
|
if (node.type === 3) { // text
|
|
return true
|
|
}
|
|
return !!(node.pre || (
|
|
!node.hasBindings && // no dynamic bindings
|
|
!node.if && !node.for && // not v-if or v-for or v-else
|
|
!isBuiltInTag(node.tag) && // not a built-in
|
|
isPlatformReservedTag(node.tag) && // not a component
|
|
!isDirectChildOfTemplateFor(node) &&
|
|
Object.keys(node).every(isStaticKey)
|
|
))
|
|
}
|
|
|
|
function isDirectChildOfTemplateFor (node) {
|
|
while (node.parent) {
|
|
node = node.parent;
|
|
if (node.tag !== 'template') {
|
|
return false
|
|
}
|
|
if (node.for) {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
/* */
|
|
|
|
const fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function(?:\s+[\w$]+)?\s*\(/;
|
|
const fnInvokeRE = /\([^)]*?\);*$/;
|
|
const simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
|
|
|
|
// KeyboardEvent.keyCode aliases
|
|
const keyCodes = {
|
|
esc: 27,
|
|
tab: 9,
|
|
enter: 13,
|
|
space: 32,
|
|
up: 38,
|
|
left: 37,
|
|
right: 39,
|
|
down: 40,
|
|
'delete': [8, 46]
|
|
};
|
|
|
|
// KeyboardEvent.key aliases
|
|
const keyNames = {
|
|
// #7880: IE11 and Edge use `Esc` for Escape key name.
|
|
esc: ['Esc', 'Escape'],
|
|
tab: 'Tab',
|
|
enter: 'Enter',
|
|
// #9112: IE11 uses `Spacebar` for Space key name.
|
|
space: [' ', 'Spacebar'],
|
|
// #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
|
|
up: ['Up', 'ArrowUp'],
|
|
left: ['Left', 'ArrowLeft'],
|
|
right: ['Right', 'ArrowRight'],
|
|
down: ['Down', 'ArrowDown'],
|
|
// #9112: IE11 uses `Del` for Delete key name.
|
|
'delete': ['Backspace', 'Delete', 'Del']
|
|
};
|
|
|
|
// #4868: modifiers that prevent the execution of the listener
|
|
// need to explicitly return null so that we can determine whether to remove
|
|
// the listener for .once
|
|
const genGuard = condition => `if(${condition})return null;`;
|
|
|
|
const modifierCode = {
|
|
stop: '$event.stopPropagation();',
|
|
prevent: '$event.preventDefault();',
|
|
self: genGuard(`$event.target !== $event.currentTarget`),
|
|
ctrl: genGuard(`!$event.ctrlKey`),
|
|
shift: genGuard(`!$event.shiftKey`),
|
|
alt: genGuard(`!$event.altKey`),
|
|
meta: genGuard(`!$event.metaKey`),
|
|
left: genGuard(`'button' in $event && $event.button !== 0`),
|
|
middle: genGuard(`'button' in $event && $event.button !== 1`),
|
|
right: genGuard(`'button' in $event && $event.button !== 2`)
|
|
};
|
|
|
|
function genHandlers (
|
|
events,
|
|
isNative
|
|
) {
|
|
const prefix = isNative ? 'nativeOn:' : 'on:';
|
|
let staticHandlers = ``;
|
|
let dynamicHandlers = ``;
|
|
for (const name in events) {
|
|
const handlerCode = genHandler(events[name]);
|
|
if (events[name] && events[name].dynamic) {
|
|
dynamicHandlers += `${name},${handlerCode},`;
|
|
} else {
|
|
staticHandlers += `"${name}":${handlerCode},`;
|
|
}
|
|
}
|
|
staticHandlers = `{${staticHandlers.slice(0, -1)}}`;
|
|
if (dynamicHandlers) {
|
|
return prefix + `_d(${staticHandlers},[${dynamicHandlers.slice(0, -1)}])`
|
|
} else {
|
|
return prefix + staticHandlers
|
|
}
|
|
}
|
|
|
|
function genHandler (handler) {
|
|
if (!handler) {
|
|
return 'function(){}'
|
|
}
|
|
|
|
if (Array.isArray(handler)) {
|
|
return `[${handler.map(handler => genHandler(handler)).join(',')}]`
|
|
}
|
|
|
|
const isMethodPath = simplePathRE.test(handler.value);
|
|
const isFunctionExpression = fnExpRE.test(handler.value);
|
|
const isFunctionInvocation = simplePathRE.test(handler.value.replace(fnInvokeRE, ''));
|
|
|
|
if (!handler.modifiers) {
|
|
if (isMethodPath || isFunctionExpression) {
|
|
return handler.value
|
|
}
|
|
return `function($event){${
|
|
isFunctionInvocation ? `return ${handler.value}` : handler.value
|
|
}}` // inline statement
|
|
} else {
|
|
let code = '';
|
|
let genModifierCode = '';
|
|
const keys = [];
|
|
for (const key in handler.modifiers) {
|
|
if (modifierCode[key]) {
|
|
genModifierCode += modifierCode[key];
|
|
// left/right
|
|
if (keyCodes[key]) {
|
|
keys.push(key);
|
|
}
|
|
} else if (key === 'exact') {
|
|
const modifiers = (handler.modifiers);
|
|
genModifierCode += genGuard(
|
|
['ctrl', 'shift', 'alt', 'meta']
|
|
.filter(keyModifier => !modifiers[keyModifier])
|
|
.map(keyModifier => `$event.${keyModifier}Key`)
|
|
.join('||')
|
|
);
|
|
} else {
|
|
keys.push(key);
|
|
}
|
|
}
|
|
if (keys.length) {
|
|
code += genKeyFilter(keys);
|
|
}
|
|
// Make sure modifiers like prevent and stop get executed after key filtering
|
|
if (genModifierCode) {
|
|
code += genModifierCode;
|
|
}
|
|
const handlerCode = isMethodPath
|
|
? `return ${handler.value}($event)`
|
|
: isFunctionExpression
|
|
? `return (${handler.value})($event)`
|
|
: isFunctionInvocation
|
|
? `return ${handler.value}`
|
|
: handler.value;
|
|
return `function($event){${code}${handlerCode}}`
|
|
}
|
|
}
|
|
|
|
function genKeyFilter (keys) {
|
|
return (
|
|
// make sure the key filters only apply to KeyboardEvents
|
|
// #9441: can't use 'keyCode' in $event because Chrome autofill fires fake
|
|
// key events that do not have keyCode property...
|
|
`if(!$event.type.indexOf('key')&&` +
|
|
`${keys.map(genFilterCode).join('&&')})return null;`
|
|
)
|
|
}
|
|
|
|
function genFilterCode (key) {
|
|
const keyVal = parseInt(key, 10);
|
|
if (keyVal) {
|
|
return `$event.keyCode!==${keyVal}`
|
|
}
|
|
const keyCode = keyCodes[key];
|
|
const keyName = keyNames[key];
|
|
return (
|
|
`_k($event.keyCode,` +
|
|
`${JSON.stringify(key)},` +
|
|
`${JSON.stringify(keyCode)},` +
|
|
`$event.key,` +
|
|
`${JSON.stringify(keyName)}` +
|
|
`)`
|
|
)
|
|
}
|
|
|
|
/* */
|
|
|
|
function on (el, dir) {
|
|
if (dir.modifiers) {
|
|
warn(`v-on without argument does not support modifiers.`);
|
|
}
|
|
el.wrapListeners = (code) => `_g(${code},${dir.value})`;
|
|
}
|
|
|
|
/* */
|
|
|
|
function bind$1 (el, dir) {
|
|
el.wrapData = (code) => {
|
|
return `_b(${code},'${el.tag}',${dir.value},${
|
|
dir.modifiers && dir.modifiers.prop ? 'true' : 'false'
|
|
}${
|
|
dir.modifiers && dir.modifiers.sync ? ',true' : ''
|
|
})`
|
|
};
|
|
}
|
|
|
|
/* */
|
|
|
|
var baseDirectives = {
|
|
on,
|
|
bind: bind$1,
|
|
cloak: noop
|
|
};
|
|
|
|
/* */
|
|
|
|
|
|
|
|
|
|
|
|
class CodegenState {
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
constructor (options) {
|
|
this.options = options;
|
|
this.warn = options.warn || baseWarn;
|
|
this.transforms = pluckModuleFunction(options.modules, 'transformCode');
|
|
this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
|
|
this.directives = extend(extend({}, baseDirectives), options.directives);
|
|
const isReservedTag = options.isReservedTag || no;
|
|
this.maybeComponent = (el) => !!el.component || !isReservedTag(el.tag);
|
|
this.onceId = 0;
|
|
this.staticRenderFns = [];
|
|
this.pre = false;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
function generate (
|
|
ast,
|
|
options
|
|
) {
|
|
const state = new CodegenState(options);
|
|
const code = ast ? genElement(ast, state) : '_c("div")';
|
|
return {
|
|
render: `with(this){return ${code}}`,
|
|
staticRenderFns: state.staticRenderFns
|
|
}
|
|
}
|
|
|
|
function genElement (el, state) {
|
|
if (el.parent) {
|
|
el.pre = el.pre || el.parent.pre;
|
|
}
|
|
|
|
if (el.staticRoot && !el.staticProcessed) {
|
|
return genStatic(el, state)
|
|
} else if (el.once && !el.onceProcessed) {
|
|
return genOnce(el, state)
|
|
} else if (el.for && !el.forProcessed) {
|
|
return genFor(el, state)
|
|
} else if (el.if && !el.ifProcessed) {
|
|
return genIf(el, state)
|
|
} else if (el.tag === 'template' && !el.slotTarget && !state.pre) {
|
|
return genChildren(el, state) || 'void 0'
|
|
} else if (el.tag === 'slot') {
|
|
return genSlot(el, state)
|
|
} else {
|
|
// component or element
|
|
let code;
|
|
if (el.component) {
|
|
code = genComponent(el.component, el, state);
|
|
} else {
|
|
let data;
|
|
if (!el.plain || (el.pre && state.maybeComponent(el))) {
|
|
data = genData$2(el, state);
|
|
}
|
|
|
|
const children = el.inlineTemplate ? null : genChildren(el, state, true);
|
|
code = `_c('${el.tag}'${
|
|
data ? `,${data}` : '' // data
|
|
}${
|
|
children ? `,${children}` : '' // children
|
|
})`;
|
|
}
|
|
// module transforms
|
|
for (let i = 0; i < state.transforms.length; i++) {
|
|
code = state.transforms[i](el, code);
|
|
}
|
|
return code
|
|
}
|
|
}
|
|
|
|
// hoist static sub-trees out
|
|
function genStatic (el, state) {
|
|
el.staticProcessed = true;
|
|
// Some elements (templates) need to behave differently inside of a v-pre
|
|
// node. All pre nodes are static roots, so we can use this as a location to
|
|
// wrap a state change and reset it upon exiting the pre node.
|
|
const originalPreState = state.pre;
|
|
if (el.pre) {
|
|
state.pre = el.pre;
|
|
}
|
|
state.staticRenderFns.push(`with(this){return ${genElement(el, state)}}`);
|
|
state.pre = originalPreState;
|
|
return `_m(${
|
|
state.staticRenderFns.length - 1
|
|
}${
|
|
el.staticInFor ? ',true' : ''
|
|
})`
|
|
}
|
|
|
|
// v-once
|
|
function genOnce (el, state) {
|
|
el.onceProcessed = true;
|
|
if (el.if && !el.ifProcessed) {
|
|
return genIf(el, state)
|
|
} else if (el.staticInFor) {
|
|
let key = '';
|
|
let parent = el.parent;
|
|
while (parent) {
|
|
if (parent.for) {
|
|
key = parent.key;
|
|
break
|
|
}
|
|
parent = parent.parent;
|
|
}
|
|
if (!key) {
|
|
state.warn(
|
|
`v-once can only be used inside v-for that is keyed. `,
|
|
el.rawAttrsMap['v-once']
|
|
);
|
|
return genElement(el, state)
|
|
}
|
|
return `_o(${genElement(el, state)},${state.onceId++},${key})`
|
|
} else {
|
|
return genStatic(el, state)
|
|
}
|
|
}
|
|
|
|
function genIf (
|
|
el,
|
|
state,
|
|
altGen,
|
|
altEmpty
|
|
) {
|
|
el.ifProcessed = true; // avoid recursion
|
|
return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty)
|
|
}
|
|
|
|
function genIfConditions (
|
|
conditions,
|
|
state,
|
|
altGen,
|
|
altEmpty
|
|
) {
|
|
if (!conditions.length) {
|
|
return altEmpty || '_e()'
|
|
}
|
|
|
|
const condition = conditions.shift();
|
|
if (condition.exp) {
|
|
return `(${condition.exp})?${
|
|
genTernaryExp(condition.block)
|
|
}:${
|
|
genIfConditions(conditions, state, altGen, altEmpty)
|
|
}`
|
|
} else {
|
|
return `${genTernaryExp(condition.block)}`
|
|
}
|
|
|
|
// v-if with v-once should generate code like (a)?_m(0):_m(1)
|
|
function genTernaryExp (el) {
|
|
return altGen
|
|
? altGen(el, state)
|
|
: el.once
|
|
? genOnce(el, state)
|
|
: genElement(el, state)
|
|
}
|
|
}
|
|
|
|
function genFor (
|
|
el,
|
|
state,
|
|
altGen,
|
|
altHelper
|
|
) {
|
|
const exp = el.for;
|
|
const alias = el.alias;
|
|
const iterator1 = el.iterator1 ? `,${el.iterator1}` : '';
|
|
const iterator2 = el.iterator2 ? `,${el.iterator2}` : '';
|
|
|
|
if (state.maybeComponent(el) &&
|
|
el.tag !== 'slot' &&
|
|
el.tag !== 'template' &&
|
|
!el.key
|
|
) {
|
|
state.warn(
|
|
`<${el.tag} v-for="${alias} in ${exp}">: component lists rendered with ` +
|
|
`v-for should have explicit keys. ` +
|
|
`See https://vuejs.org/guide/list.html#key for more info.`,
|
|
el.rawAttrsMap['v-for'],
|
|
true /* tip */
|
|
);
|
|
}
|
|
|
|
el.forProcessed = true; // avoid recursion
|
|
return `${altHelper || '_l'}((${exp}),` +
|
|
`function(${alias}${iterator1}${iterator2}){` +
|
|
`return ${(altGen || genElement)(el, state)}` +
|
|
'})'
|
|
}
|
|
|
|
function genData$2 (el, state) {
|
|
let data = '{';
|
|
|
|
// directives first.
|
|
// directives may mutate the el's other properties before they are generated.
|
|
const dirs = genDirectives(el, state);
|
|
if (dirs) data += dirs + ',';
|
|
|
|
// key
|
|
if (el.key) {
|
|
data += `key:${el.key},`;
|
|
}
|
|
// ref
|
|
if (el.ref) {
|
|
data += `ref:${el.ref},`;
|
|
}
|
|
if (el.refInFor) {
|
|
data += `refInFor:true,`;
|
|
}
|
|
// pre
|
|
if (el.pre) {
|
|
data += `pre:true,`;
|
|
}
|
|
// record original tag name for components using "is" attribute
|
|
if (el.component) {
|
|
data += `tag:"${el.tag}",`;
|
|
}
|
|
// module data generation functions
|
|
for (let i = 0; i < state.dataGenFns.length; i++) {
|
|
data += state.dataGenFns[i](el);
|
|
}
|
|
// attributes
|
|
if (el.attrs) {
|
|
data += `attrs:${genProps(el.attrs)},`;
|
|
}
|
|
// DOM props
|
|
if (el.props) {
|
|
data += `domProps:${genProps(el.props)},`;
|
|
}
|
|
// event handlers
|
|
if (el.events) {
|
|
data += `${genHandlers(el.events, false)},`;
|
|
}
|
|
if (el.nativeEvents) {
|
|
data += `${genHandlers(el.nativeEvents, true)},`;
|
|
}
|
|
// slot target
|
|
// only for non-scoped slots
|
|
if (el.slotTarget && !el.slotScope) {
|
|
data += `slot:${el.slotTarget},`;
|
|
}
|
|
// scoped slots
|
|
if (el.scopedSlots) {
|
|
data += `${genScopedSlots(el, el.scopedSlots, state)},`;
|
|
}
|
|
// component v-model
|
|
if (el.model) {
|
|
data += `model:{value:${
|
|
el.model.value
|
|
},callback:${
|
|
el.model.callback
|
|
},expression:${
|
|
el.model.expression
|
|
}},`;
|
|
}
|
|
// inline-template
|
|
if (el.inlineTemplate) {
|
|
const inlineTemplate = genInlineTemplate(el, state);
|
|
if (inlineTemplate) {
|
|
data += `${inlineTemplate},`;
|
|
}
|
|
}
|
|
data = data.replace(/,$/, '') + '}';
|
|
// v-bind dynamic argument wrap
|
|
// v-bind with dynamic arguments must be applied using the same v-bind object
|
|
// merge helper so that class/style/mustUseProp attrs are handled correctly.
|
|
if (el.dynamicAttrs) {
|
|
data = `_b(${data},"${el.tag}",${genProps(el.dynamicAttrs)})`;
|
|
}
|
|
// v-bind data wrap
|
|
if (el.wrapData) {
|
|
data = el.wrapData(data);
|
|
}
|
|
// v-on data wrap
|
|
if (el.wrapListeners) {
|
|
data = el.wrapListeners(data);
|
|
}
|
|
return data
|
|
}
|
|
|
|
function genDirectives (el, state) {
|
|
const dirs = el.directives;
|
|
if (!dirs) return
|
|
let res = 'directives:[';
|
|
let hasRuntime = false;
|
|
let i, l, dir, needRuntime;
|
|
for (i = 0, l = dirs.length; i < l; i++) {
|
|
dir = dirs[i];
|
|
needRuntime = true;
|
|
const gen = state.directives[dir.name];
|
|
if (gen) {
|
|
// compile-time directive that manipulates AST.
|
|
// returns true if it also needs a runtime counterpart.
|
|
needRuntime = !!gen(el, dir, state.warn);
|
|
}
|
|
if (needRuntime) {
|
|
hasRuntime = true;
|
|
res += `{name:"${dir.name}",rawName:"${dir.rawName}"${
|
|
dir.value ? `,value:(${dir.value}),expression:${JSON.stringify(dir.value)}` : ''
|
|
}${
|
|
dir.arg ? `,arg:${dir.isDynamicArg ? dir.arg : `"${dir.arg}"`}` : ''
|
|
}${
|
|
dir.modifiers ? `,modifiers:${JSON.stringify(dir.modifiers)}` : ''
|
|
}},`;
|
|
}
|
|
}
|
|
if (hasRuntime) {
|
|
return res.slice(0, -1) + ']'
|
|
}
|
|
}
|
|
|
|
function genInlineTemplate (el, state) {
|
|
const ast = el.children[0];
|
|
if (el.children.length !== 1 || ast.type !== 1) {
|
|
state.warn(
|
|
'Inline-template components must have exactly one child element.',
|
|
{ start: el.start }
|
|
);
|
|
}
|
|
if (ast && ast.type === 1) {
|
|
const inlineRenderFns = generate(ast, state.options);
|
|
return `inlineTemplate:{render:function(){${
|
|
inlineRenderFns.render
|
|
}},staticRenderFns:[${
|
|
inlineRenderFns.staticRenderFns.map(code => `function(){${code}}`).join(',')
|
|
}]}`
|
|
}
|
|
}
|
|
|
|
function genScopedSlots (
|
|
el,
|
|
slots,
|
|
state
|
|
) {
|
|
// by default scoped slots are considered "stable", this allows child
|
|
// components with only scoped slots to skip forced updates from parent.
|
|
// but in some cases we have to bail-out of this optimization
|
|
// for example if the slot contains dynamic names, has v-if or v-for on them...
|
|
let needsForceUpdate = el.for || Object.keys(slots).some(key => {
|
|
const slot = slots[key];
|
|
return (
|
|
slot.slotTargetDynamic ||
|
|
slot.if ||
|
|
slot.for ||
|
|
containsSlotChild(slot) // is passing down slot from parent which may be dynamic
|
|
)
|
|
});
|
|
|
|
// #9534: if a component with scoped slots is inside a conditional branch,
|
|
// it's possible for the same component to be reused but with different
|
|
// compiled slot content. To avoid that, we generate a unique key based on
|
|
// the generated code of all the slot contents.
|
|
let needsKey = !!el.if;
|
|
|
|
// OR when it is inside another scoped slot or v-for (the reactivity may be
|
|
// disconnected due to the intermediate scope variable)
|
|
// #9438, #9506
|
|
// TODO: this can be further optimized by properly analyzing in-scope bindings
|
|
// and skip force updating ones that do not actually use scope variables.
|
|
if (!needsForceUpdate) {
|
|
let parent = el.parent;
|
|
while (parent) {
|
|
if (
|
|
(parent.slotScope && parent.slotScope !== emptySlotScopeToken) ||
|
|
parent.for
|
|
) {
|
|
needsForceUpdate = true;
|
|
break
|
|
}
|
|
if (parent.if) {
|
|
needsKey = true;
|
|
}
|
|
parent = parent.parent;
|
|
}
|
|
}
|
|
|
|
const generatedSlots = Object.keys(slots)
|
|
.map(key => genScopedSlot(slots[key], state))
|
|
.join(',');
|
|
|
|
return `scopedSlots:_u([${generatedSlots}]${
|
|
needsForceUpdate ? `,null,true` : ``
|
|
}${
|
|
!needsForceUpdate && needsKey ? `,null,false,${hash(generatedSlots)}` : ``
|
|
})`
|
|
}
|
|
|
|
function hash(str) {
|
|
let hash = 5381;
|
|
let i = str.length;
|
|
while(i) {
|
|
hash = (hash * 33) ^ str.charCodeAt(--i);
|
|
}
|
|
return hash >>> 0
|
|
}
|
|
|
|
function containsSlotChild (el) {
|
|
if (el.type === 1) {
|
|
if (el.tag === 'slot') {
|
|
return true
|
|
}
|
|
return el.children.some(containsSlotChild)
|
|
}
|
|
return false
|
|
}
|
|
|
|
function genScopedSlot (
|
|
el,
|
|
state
|
|
) {
|
|
const isLegacySyntax = el.attrsMap['slot-scope'];
|
|
if (el.if && !el.ifProcessed && !isLegacySyntax) {
|
|
return genIf(el, state, genScopedSlot, `null`)
|
|
}
|
|
if (el.for && !el.forProcessed) {
|
|
return genFor(el, state, genScopedSlot)
|
|
}
|
|
const slotScope = el.slotScope === emptySlotScopeToken
|
|
? ``
|
|
: String(el.slotScope);
|
|
const fn = `function(${slotScope}){` +
|
|
`return ${el.tag === 'template'
|
|
? el.if && isLegacySyntax
|
|
? `(${el.if})?${genChildren(el, state) || 'undefined'}:undefined`
|
|
: genChildren(el, state) || 'undefined'
|
|
: genElement(el, state)
|
|
}}`;
|
|
// reverse proxy v-slot without scope on this.$slots
|
|
const reverseProxy = slotScope ? `` : `,proxy:true`;
|
|
return `{key:${el.slotTarget || `"default"`},fn:${fn}${reverseProxy}}`
|
|
}
|
|
|
|
function genChildren (
|
|
el,
|
|
state,
|
|
checkSkip,
|
|
altGenElement,
|
|
altGenNode
|
|
) {
|
|
const children = el.children;
|
|
if (children.length) {
|
|
const el = children[0];
|
|
// optimize single v-for
|
|
if (children.length === 1 &&
|
|
el.for &&
|
|
el.tag !== 'template' &&
|
|
el.tag !== 'slot'
|
|
) {
|
|
const normalizationType = checkSkip
|
|
? state.maybeComponent(el) ? `,1` : `,0`
|
|
: ``;
|
|
return `${(altGenElement || genElement)(el, state)}${normalizationType}`
|
|
}
|
|
const normalizationType = checkSkip
|
|
? getNormalizationType(children, state.maybeComponent)
|
|
: 0;
|
|
const gen = altGenNode || genNode;
|
|
return `[${children.map(c => gen(c, state)).join(',')}]${
|
|
normalizationType ? `,${normalizationType}` : ''
|
|
}`
|
|
}
|
|
}
|
|
|
|
// determine the normalization needed for the children array.
|
|
// 0: no normalization needed
|
|
// 1: simple normalization needed (possible 1-level deep nested array)
|
|
// 2: full normalization needed
|
|
function getNormalizationType (
|
|
children,
|
|
maybeComponent
|
|
) {
|
|
let res = 0;
|
|
for (let i = 0; i < children.length; i++) {
|
|
const el = children[i];
|
|
if (el.type !== 1) {
|
|
continue
|
|
}
|
|
if (needsNormalization(el) ||
|
|
(el.ifConditions && el.ifConditions.some(c => needsNormalization(c.block)))) {
|
|
res = 2;
|
|
break
|
|
}
|
|
if (maybeComponent(el) ||
|
|
(el.ifConditions && el.ifConditions.some(c => maybeComponent(c.block)))) {
|
|
res = 1;
|
|
}
|
|
}
|
|
return res
|
|
}
|
|
|
|
function needsNormalization (el) {
|
|
return el.for !== undefined || el.tag === 'template' || el.tag === 'slot'
|
|
}
|
|
|
|
function genNode (node, state) {
|
|
if (node.type === 1) {
|
|
return genElement(node, state)
|
|
} else if (node.type === 3 && node.isComment) {
|
|
return genComment(node)
|
|
} else {
|
|
return genText(node)
|
|
}
|
|
}
|
|
|
|
function genText (text) {
|
|
return `_v(${text.type === 2
|
|
? text.expression // no need for () because already wrapped in _s()
|
|
: transformSpecialNewlines(JSON.stringify(text.text))
|
|
})`
|
|
}
|
|
|
|
function genComment (comment) {
|
|
return `_e(${JSON.stringify(comment.text)})`
|
|
}
|
|
|
|
function genSlot (el, state) {
|
|
const slotName = el.slotName || '"default"';
|
|
const children = genChildren(el, state);
|
|
let res = `_t(${slotName}${children ? `,${children}` : ''}`;
|
|
const attrs = el.attrs || el.dynamicAttrs
|
|
? genProps((el.attrs || []).concat(el.dynamicAttrs || []).map(attr => ({
|
|
// slot props are camelized
|
|
name: camelize(attr.name),
|
|
value: attr.value,
|
|
dynamic: attr.dynamic
|
|
})))
|
|
: null;
|
|
const bind$$1 = el.attrsMap['v-bind'];
|
|
if ((attrs || bind$$1) && !children) {
|
|
res += `,null`;
|
|
}
|
|
if (attrs) {
|
|
res += `,${attrs}`;
|
|
}
|
|
if (bind$$1) {
|
|
res += `${attrs ? '' : ',null'},${bind$$1}`;
|
|
}
|
|
return res + ')'
|
|
}
|
|
|
|
// componentName is el.component, take it as argument to shun flow's pessimistic refinement
|
|
function genComponent (
|
|
componentName,
|
|
el,
|
|
state
|
|
) {
|
|
const children = el.inlineTemplate ? null : genChildren(el, state, true);
|
|
return `_c(${componentName},${genData$2(el, state)}${
|
|
children ? `,${children}` : ''
|
|
})`
|
|
}
|
|
|
|
function genProps (props) {
|
|
let staticProps = ``;
|
|
let dynamicProps = ``;
|
|
for (let i = 0; i < props.length; i++) {
|
|
const prop = props[i];
|
|
const value = transformSpecialNewlines(prop.value);
|
|
if (prop.dynamic) {
|
|
dynamicProps += `${prop.name},${value},`;
|
|
} else {
|
|
staticProps += `"${prop.name}":${value},`;
|
|
}
|
|
}
|
|
staticProps = `{${staticProps.slice(0, -1)}}`;
|
|
if (dynamicProps) {
|
|
return `_d(${staticProps},[${dynamicProps.slice(0, -1)}])`
|
|
} else {
|
|
return staticProps
|
|
}
|
|
}
|
|
|
|
// #3895, #4268
|
|
function transformSpecialNewlines (text) {
|
|
return text
|
|
.replace(/\u2028/g, '\\u2028')
|
|
.replace(/\u2029/g, '\\u2029')
|
|
}
|
|
|
|
/* */
|
|
|
|
|
|
|
|
// these keywords should not appear inside expressions, but operators like
|
|
// typeof, instanceof and in are allowed
|
|
const prohibitedKeywordRE = new RegExp('\\b' + (
|
|
'do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' +
|
|
'super,throw,while,yield,delete,export,import,return,switch,default,' +
|
|
'extends,finally,continue,debugger,function,arguments'
|
|
).split(',').join('\\b|\\b') + '\\b');
|
|
|
|
// these unary operators should not be used as property/method names
|
|
const unaryOperatorsRE = new RegExp('\\b' + (
|
|
'delete,typeof,void'
|
|
).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
|
|
|
|
// strip strings in expressions
|
|
const stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
|
|
|
|
// detect problematic expressions in a template
|
|
function detectErrors (ast, warn) {
|
|
if (ast) {
|
|
checkNode(ast, warn);
|
|
}
|
|
}
|
|
|
|
function checkNode (node, warn) {
|
|
if (node.type === 1) {
|
|
for (const name in node.attrsMap) {
|
|
if (dirRE.test(name)) {
|
|
const value = node.attrsMap[name];
|
|
if (value) {
|
|
const range = node.rawAttrsMap[name];
|
|
if (name === 'v-for') {
|
|
checkFor(node, `v-for="${value}"`, warn, range);
|
|
} else if (name === 'v-slot' || name[0] === '#') {
|
|
checkFunctionParameterExpression(value, `${name}="${value}"`, warn, range);
|
|
} else if (onRE.test(name)) {
|
|
checkEvent(value, `${name}="${value}"`, warn, range);
|
|
} else {
|
|
checkExpression(value, `${name}="${value}"`, warn, range);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (node.children) {
|
|
for (let i = 0; i < node.children.length; i++) {
|
|
checkNode(node.children[i], warn);
|
|
}
|
|
}
|
|
} else if (node.type === 2) {
|
|
checkExpression(node.expression, node.text, warn, node);
|
|
}
|
|
}
|
|
|
|
function checkEvent (exp, text, warn, range) {
|
|
const stripped = exp.replace(stripStringRE, '');
|
|
const keywordMatch = stripped.match(unaryOperatorsRE);
|
|
if (keywordMatch && stripped.charAt(keywordMatch.index - 1) !== '$') {
|
|
warn(
|
|
`avoid using JavaScript unary operator as property name: ` +
|
|
`"${keywordMatch[0]}" in expression ${text.trim()}`,
|
|
range
|
|
);
|
|
}
|
|
checkExpression(exp, text, warn, range);
|
|
}
|
|
|
|
function checkFor (node, text, warn, range) {
|
|
checkExpression(node.for || '', text, warn, range);
|
|
checkIdentifier(node.alias, 'v-for alias', text, warn, range);
|
|
checkIdentifier(node.iterator1, 'v-for iterator', text, warn, range);
|
|
checkIdentifier(node.iterator2, 'v-for iterator', text, warn, range);
|
|
}
|
|
|
|
function checkIdentifier (
|
|
ident,
|
|
type,
|
|
text,
|
|
warn,
|
|
range
|
|
) {
|
|
if (typeof ident === 'string') {
|
|
try {
|
|
new Function(`var ${ident}=_`);
|
|
} catch (e) {
|
|
warn(`invalid ${type} "${ident}" in expression: ${text.trim()}`, range);
|
|
}
|
|
}
|
|
}
|
|
|
|
function checkExpression (exp, text, warn, range) {
|
|
try {
|
|
new Function(`return ${exp}`);
|
|
} catch (e) {
|
|
const keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
|
|
if (keywordMatch) {
|
|
warn(
|
|
`avoid using JavaScript keyword as property name: ` +
|
|
`"${keywordMatch[0]}"\n Raw expression: ${text.trim()}`,
|
|
range
|
|
);
|
|
} else {
|
|
warn(
|
|
`invalid expression: ${e.message} in\n\n` +
|
|
` ${exp}\n\n` +
|
|
` Raw expression: ${text.trim()}\n`,
|
|
range
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
function checkFunctionParameterExpression (exp, text, warn, range) {
|
|
try {
|
|
new Function(exp, '');
|
|
} catch (e) {
|
|
warn(
|
|
`invalid function parameter expression: ${e.message} in\n\n` +
|
|
` ${exp}\n\n` +
|
|
` Raw expression: ${text.trim()}\n`,
|
|
range
|
|
);
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
const range = 2;
|
|
|
|
function generateCodeFrame (
|
|
source,
|
|
start = 0,
|
|
end = source.length
|
|
) {
|
|
const lines = source.split(/\r?\n/);
|
|
let count = 0;
|
|
const res = [];
|
|
for (let i = 0; i < lines.length; i++) {
|
|
count += lines[i].length + 1;
|
|
if (count >= start) {
|
|
for (let j = i - range; j <= i + range || end > count; j++) {
|
|
if (j < 0 || j >= lines.length) continue
|
|
res.push(`${j + 1}${repeat(` `, 3 - String(j + 1).length)}| ${lines[j]}`);
|
|
const lineLength = lines[j].length;
|
|
if (j === i) {
|
|
// push underline
|
|
const pad = start - (count - lineLength) + 1;
|
|
const length = end > count ? lineLength - pad : end - start;
|
|
res.push(` | ` + repeat(` `, pad) + repeat(`^`, length));
|
|
} else if (j > i) {
|
|
if (end > count) {
|
|
const length = Math.min(end - count, lineLength);
|
|
res.push(` | ` + repeat(`^`, length));
|
|
}
|
|
count += lineLength + 1;
|
|
}
|
|
}
|
|
break
|
|
}
|
|
}
|
|
return res.join('\n')
|
|
}
|
|
|
|
function repeat (str, n) {
|
|
let result = '';
|
|
if (n > 0) {
|
|
while (true) { // eslint-disable-line
|
|
if (n & 1) result += str;
|
|
n >>>= 1;
|
|
if (n <= 0) break
|
|
str += str;
|
|
}
|
|
}
|
|
return result
|
|
}
|
|
|
|
/* */
|
|
|
|
|
|
|
|
function createFunction (code, errors) {
|
|
try {
|
|
return new Function(code)
|
|
} catch (err) {
|
|
errors.push({ err, code });
|
|
return noop
|
|
}
|
|
}
|
|
|
|
function createCompileToFunctionFn (compile) {
|
|
const cache = Object.create(null);
|
|
|
|
return function compileToFunctions (
|
|
template,
|
|
options,
|
|
vm
|
|
) {
|
|
options = extend({}, options);
|
|
const warn$$1 = options.warn || warn;
|
|
delete options.warn;
|
|
|
|
/* istanbul ignore if */
|
|
{
|
|
// detect possible CSP restriction
|
|
try {
|
|
new Function('return 1');
|
|
} catch (e) {
|
|
if (e.toString().match(/unsafe-eval|CSP/)) {
|
|
warn$$1(
|
|
'It seems you are using the standalone build of Vue.js in an ' +
|
|
'environment with Content Security Policy that prohibits unsafe-eval. ' +
|
|
'The template compiler cannot work in this environment. Consider ' +
|
|
'relaxing the policy to allow unsafe-eval or pre-compiling your ' +
|
|
'templates into render functions.'
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
// check cache
|
|
const key = options.delimiters
|
|
? String(options.delimiters) + template
|
|
: template;
|
|
if (cache[key]) {
|
|
return cache[key]
|
|
}
|
|
|
|
// compile
|
|
const compiled = compile(template, options);
|
|
|
|
// check compilation errors/tips
|
|
{
|
|
if (compiled.errors && compiled.errors.length) {
|
|
if (options.outputSourceRange) {
|
|
compiled.errors.forEach(e => {
|
|
warn$$1(
|
|
`Error compiling template:\n\n${e.msg}\n\n` +
|
|
generateCodeFrame(template, e.start, e.end),
|
|
vm
|
|
);
|
|
});
|
|
} else {
|
|
warn$$1(
|
|
`Error compiling template:\n\n${template}\n\n` +
|
|
compiled.errors.map(e => `- ${e}`).join('\n') + '\n',
|
|
vm
|
|
);
|
|
}
|
|
}
|
|
if (compiled.tips && compiled.tips.length) {
|
|
if (options.outputSourceRange) {
|
|
compiled.tips.forEach(e => tip(e.msg, vm));
|
|
} else {
|
|
compiled.tips.forEach(msg => tip(msg, vm));
|
|
}
|
|
}
|
|
}
|
|
|
|
// turn code into functions
|
|
const res = {};
|
|
const fnGenErrors = [];
|
|
res.render = createFunction(compiled.render, fnGenErrors);
|
|
res.staticRenderFns = compiled.staticRenderFns.map(code => {
|
|
return createFunction(code, fnGenErrors)
|
|
});
|
|
|
|
// check function generation errors.
|
|
// this should only happen if there is a bug in the compiler itself.
|
|
// mostly for codegen development use
|
|
/* istanbul ignore if */
|
|
{
|
|
if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
|
|
warn$$1(
|
|
`Failed to generate render function:\n\n` +
|
|
fnGenErrors.map(({ err, code }) => `${err.toString()} in\n\n${code}\n`).join('\n'),
|
|
vm
|
|
);
|
|
}
|
|
}
|
|
|
|
return (cache[key] = res)
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
function createCompilerCreator (baseCompile) {
|
|
return function createCompiler (baseOptions) {
|
|
function compile (
|
|
template,
|
|
options
|
|
) {
|
|
const finalOptions = Object.create(baseOptions);
|
|
const errors = [];
|
|
const tips = [];
|
|
|
|
let warn = (msg, range, tip) => {
|
|
(tip ? tips : errors).push(msg);
|
|
};
|
|
|
|
if (options) {
|
|
if (options.outputSourceRange) {
|
|
// $flow-disable-line
|
|
const leadingSpaceLength = template.match(/^\s*/)[0].length;
|
|
|
|
warn = (msg, range, tip) => {
|
|
const data = { msg };
|
|
if (range) {
|
|
if (range.start != null) {
|
|
data.start = range.start + leadingSpaceLength;
|
|
}
|
|
if (range.end != null) {
|
|
data.end = range.end + leadingSpaceLength;
|
|
}
|
|
}
|
|
(tip ? tips : errors).push(data);
|
|
};
|
|
}
|
|
// merge custom modules
|
|
if (options.modules) {
|
|
finalOptions.modules =
|
|
(baseOptions.modules || []).concat(options.modules);
|
|
}
|
|
// merge custom directives
|
|
if (options.directives) {
|
|
finalOptions.directives = extend(
|
|
Object.create(baseOptions.directives || null),
|
|
options.directives
|
|
);
|
|
}
|
|
// copy other options
|
|
for (const key in options) {
|
|
if (key !== 'modules' && key !== 'directives') {
|
|
finalOptions[key] = options[key];
|
|
}
|
|
}
|
|
}
|
|
|
|
finalOptions.warn = warn;
|
|
|
|
const compiled = baseCompile(template.trim(), finalOptions);
|
|
{
|
|
detectErrors(compiled.ast, warn);
|
|
}
|
|
compiled.errors = errors;
|
|
compiled.tips = tips;
|
|
return compiled
|
|
}
|
|
|
|
return {
|
|
compile,
|
|
compileToFunctions: createCompileToFunctionFn(compile)
|
|
}
|
|
}
|
|
}
|
|
|
|
/* */
|
|
|
|
// `createCompilerCreator` allows creating compilers that use alternative
|
|
// parser/optimizer/codegen, e.g the SSR optimizing compiler.
|
|
// Here we just export a default compiler using the default parts.
|
|
const createCompiler = createCompilerCreator(function baseCompile (
|
|
template,
|
|
options
|
|
) {
|
|
const ast = parse(template.trim(), options);
|
|
if (options.optimize !== false) {
|
|
optimize(ast, options);
|
|
}
|
|
const code = generate(ast, options);
|
|
return {
|
|
ast,
|
|
render: code.render,
|
|
staticRenderFns: code.staticRenderFns
|
|
}
|
|
});
|
|
|
|
/* */
|
|
|
|
const { compile, compileToFunctions } = createCompiler(baseOptions);
|
|
|
|
/* */
|
|
|
|
// check whether current browser encodes a char inside attribute values
|
|
let div;
|
|
function getShouldDecode (href) {
|
|
div = div || document.createElement('div');
|
|
div.innerHTML = href ? `<a href="\n"/>` : `<div a="\n"/>`;
|
|
return div.innerHTML.indexOf(' ') > 0
|
|
}
|
|
|
|
// #3663: IE encodes newlines inside attribute values while other browsers don't
|
|
const shouldDecodeNewlines = inBrowser ? getShouldDecode(false) : false;
|
|
// #6828: chrome encodes content in a[href]
|
|
const shouldDecodeNewlinesForHref = inBrowser ? getShouldDecode(true) : false;
|
|
|
|
/* */
|
|
|
|
const idToTemplate = cached(id => {
|
|
const el = query(id);
|
|
return el && el.innerHTML
|
|
});
|
|
|
|
const mount = Vue.prototype.$mount;
|
|
Vue.prototype.$mount = function (
|
|
el,
|
|
hydrating
|
|
) {
|
|
el = el && query(el);
|
|
|
|
/* istanbul ignore if */
|
|
if (el === document.body || el === document.documentElement) {
|
|
warn(
|
|
`Do not mount Vue to <html> or <body> - mount to normal elements instead.`
|
|
);
|
|
return this
|
|
}
|
|
|
|
const options = this.$options;
|
|
// resolve template/el and convert to render function
|
|
if (!options.render) {
|
|
let template = options.template;
|
|
if (template) {
|
|
if (typeof template === 'string') {
|
|
if (template.charAt(0) === '#') {
|
|
template = idToTemplate(template);
|
|
/* istanbul ignore if */
|
|
if (!template) {
|
|
warn(
|
|
`Template element not found or is empty: ${options.template}`,
|
|
this
|
|
);
|
|
}
|
|
}
|
|
} else if (template.nodeType) {
|
|
template = template.innerHTML;
|
|
} else {
|
|
{
|
|
warn('invalid template option:' + template, this);
|
|
}
|
|
return this
|
|
}
|
|
} else if (el) {
|
|
template = getOuterHTML(el);
|
|
}
|
|
if (template) {
|
|
/* istanbul ignore if */
|
|
if (config.performance && mark) {
|
|
mark('compile');
|
|
}
|
|
|
|
const { render, staticRenderFns } = compileToFunctions(template, {
|
|
outputSourceRange: "development" !== 'production',
|
|
shouldDecodeNewlines,
|
|
shouldDecodeNewlinesForHref,
|
|
delimiters: options.delimiters,
|
|
comments: options.comments
|
|
}, this);
|
|
options.render = render;
|
|
options.staticRenderFns = staticRenderFns;
|
|
|
|
/* istanbul ignore if */
|
|
if (config.performance && mark) {
|
|
mark('compile end');
|
|
measure(`vue ${this._name} compile`, 'compile', 'compile end');
|
|
}
|
|
}
|
|
}
|
|
return mount.call(this, el, hydrating)
|
|
};
|
|
|
|
/**
|
|
* Get outerHTML of elements, taking care
|
|
* of SVG elements in IE as well.
|
|
*/
|
|
function getOuterHTML (el) {
|
|
if (el.outerHTML) {
|
|
return el.outerHTML
|
|
} else {
|
|
const container = document.createElement('div');
|
|
container.appendChild(el.cloneNode(true));
|
|
return container.innerHTML
|
|
}
|
|
}
|
|
|
|
Vue.compile = compileToFunctions;
|
|
|
|
export default Vue;
|