forked from zhurui/management
59 lines
1.4 KiB
JavaScript
59 lines
1.4 KiB
JavaScript
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const { renderer } = require('posthtml-svg-mode');
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const { getRoot, getHash } = require('./utils');
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const defaultFactory = require('./symbol-factory');
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const FileRequest = require('./request');
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const clone = require('clone');
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class SpriteSymbol {
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constructor({ id, tree, request }) {
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this.id = id;
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this._tree = tree;
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this.request = request;
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}
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/**
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* @param {Object} options
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* @param {string} options.id
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* @param {string} options.content
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* @param {string|FileRequest} options.request
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* @param {Function<Promise<PostHTMLProcessingResult>>} [options.factory]
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* @return {Promise<SpriteSymbol>}
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*/
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static create(options) {
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const { content, factory = defaultFactory } = options;
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const request = typeof options.request === 'string' ? new FileRequest(options.request) : options.request;
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const id = typeof options.id === 'undefined' ? getHash(`${request.toString()}_${content}`) : options.id;
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return factory({ content, request, id })
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.then(({ tree }) => new SpriteSymbol({ id, request, tree }));
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}
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/**
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* @return {string}
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*/
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get viewBox() {
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const root = getRoot(this.tree);
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return root.attrs ? root.attrs.viewBox : null;
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}
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get tree() {
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return clone(this._tree);
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}
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/**
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* @return {string}
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*/
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get useId() {
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return `${this.id}-usage`;
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}
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/**
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* @return {string}
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*/
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render() {
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return renderer(this.tree);
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}
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}
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module.exports = SpriteSymbol;
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