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