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'use strict';
exports.type = 'perItem';
exports.active = true;
exports.description = 'merges multiple paths in one if possible';
exports.params = {
collapseRepeated: true,
leadingZero: true,
negativeExtraSpace: true
};
var path2js = require('./_path.js').path2js,
js2path = require('./_path.js').js2path,
intersects = require('./_path.js').intersects;
/**
* Merge multiple Paths into one.
*
* @param {Object} item current iteration item
* @return {Boolean} if false, item will be filtered out
*
* @author Kir Belevich, Lev Solntsev
*/
exports.fn = function(item, params) {
if (!item.isElem() || item.isEmpty()) return;
var prevContentItem = null,
prevContentItemKeys = null;
item.content = item.content.filter(function(contentItem) {
if (prevContentItem &&
prevContentItem.isElem('path') &&
prevContentItem.isEmpty() &&
prevContentItem.hasAttr('d') &&
contentItem.isElem('path') &&
contentItem.isEmpty() &&
contentItem.hasAttr('d')
) {
if (!prevContentItemKeys) {
prevContentItemKeys = Object.keys(prevContentItem.attrs);
}
var contentItemAttrs = Object.keys(contentItem.attrs),
equalData = prevContentItemKeys.length == contentItemAttrs.length &&
contentItemAttrs.every(function(key) {
return key == 'd' ||
prevContentItem.hasAttr(key) &&
prevContentItem.attr(key).value == contentItem.attr(key).value;
}),
prevPathJS = path2js(prevContentItem),
curPathJS = path2js(contentItem);
if (equalData && !intersects(prevPathJS, curPathJS)) {
js2path(prevContentItem, prevPathJS.concat(curPathJS), params);
return false;
}
}
prevContentItem = contentItem;
prevContentItemKeys = null;
return true;
});
};