forked from zhurui/management
88 lines
2.9 KiB
JavaScript
88 lines
2.9 KiB
JavaScript
'use strict';
|
|
|
|
exports.type = 'perItemReverse';
|
|
|
|
exports.active = true;
|
|
|
|
exports.description = 'collapses useless groups';
|
|
|
|
var collections = require('./_collections'),
|
|
attrsInheritable = collections.inheritableAttrs,
|
|
animationElems = collections.elemsGroups.animation;
|
|
|
|
function hasAnimatedAttr(item) {
|
|
/* jshint validthis:true */
|
|
return item.isElem(animationElems) && item.hasAttr('attributeName', this) ||
|
|
!item.isEmpty() && item.content.some(hasAnimatedAttr, this);
|
|
}
|
|
|
|
/*
|
|
* Collapse useless groups.
|
|
*
|
|
* @example
|
|
* <g>
|
|
* <g attr1="val1">
|
|
* <path d="..."/>
|
|
* </g>
|
|
* </g>
|
|
* ⬇
|
|
* <g>
|
|
* <g>
|
|
* <path attr1="val1" d="..."/>
|
|
* </g>
|
|
* </g>
|
|
* ⬇
|
|
* <path attr1="val1" d="..."/>
|
|
*
|
|
* @param {Object} item current iteration item
|
|
* @return {Boolean} if false, item will be filtered out
|
|
*
|
|
* @author Kir Belevich
|
|
*/
|
|
exports.fn = function(item) {
|
|
|
|
// non-empty elements
|
|
if (item.isElem() && !item.isElem('switch') && !item.isEmpty()) {
|
|
item.content.forEach(function(g, i) {
|
|
// non-empty groups
|
|
if (g.isElem('g') && !g.isEmpty()) {
|
|
// move group attibutes to the single content element
|
|
if (g.hasAttr() && g.content.length === 1) {
|
|
var inner = g.content[0];
|
|
|
|
if (inner.isElem() && !inner.hasAttr('id') && !g.hasAttr('filter') &&
|
|
!(g.hasAttr('class') && inner.hasAttr('class')) && (
|
|
!g.hasAttr('clip-path') && !g.hasAttr('mask') ||
|
|
inner.isElem('g') && !g.hasAttr('transform') && !inner.hasAttr('transform')
|
|
)
|
|
) {
|
|
g.eachAttr(function(attr) {
|
|
if (g.content.some(hasAnimatedAttr, attr.name)) return;
|
|
|
|
if (!inner.hasAttr(attr.name)) {
|
|
inner.addAttr(attr);
|
|
} else if (attr.name == 'transform') {
|
|
inner.attr(attr.name).value = attr.value + ' ' + inner.attr(attr.name).value;
|
|
} else if (inner.hasAttr(attr.name, 'inherit')) {
|
|
inner.attr(attr.name).value = attr.value;
|
|
} else if (
|
|
attrsInheritable.indexOf(attr.name) < 0 &&
|
|
!inner.hasAttr(attr.name, attr.value)
|
|
) {
|
|
return;
|
|
}
|
|
|
|
g.removeAttr(attr.name);
|
|
});
|
|
}
|
|
}
|
|
|
|
// collapse groups without attributes
|
|
if (!g.hasAttr() && !g.content.some(function(item) { return item.isElem(animationElems) })) {
|
|
item.spliceContent(i, 1, g.content);
|
|
}
|
|
}
|
|
});
|
|
}
|
|
};
|