345 lines
9.0 KiB
JavaScript
345 lines
9.0 KiB
JavaScript
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;(function ($, window, document, undefined) {
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'use strict';
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Foundation.libs.interchange = {
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name : 'interchange',
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version : '5.4.7',
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cache : {},
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images_loaded : false,
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nodes_loaded : false,
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settings : {
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load_attr : 'interchange',
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named_queries : {
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'default' : 'only screen',
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small : Foundation.media_queries.small,
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medium : Foundation.media_queries.medium,
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large : Foundation.media_queries.large,
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xlarge : Foundation.media_queries.xlarge,
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xxlarge: Foundation.media_queries.xxlarge,
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landscape : 'only screen and (orientation: landscape)',
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portrait : 'only screen and (orientation: portrait)',
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retina : 'only screen and (-webkit-min-device-pixel-ratio: 2),' +
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'only screen and (min--moz-device-pixel-ratio: 2),' +
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'only screen and (-o-min-device-pixel-ratio: 2/1),' +
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'only screen and (min-device-pixel-ratio: 2),' +
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'only screen and (min-resolution: 192dpi),' +
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'only screen and (min-resolution: 2dppx)'
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},
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directives : {
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replace: function (el, path, trigger) {
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// The trigger argument, if called within the directive, fires
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// an event named after the directive on the element, passing
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// any parameters along to the event that you pass to trigger.
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//
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// ex. trigger(), trigger([a, b, c]), or trigger(a, b, c)
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//
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// This allows you to bind a callback like so:
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// $('#interchangeContainer').on('replace', function (e, a, b, c) {
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// console.log($(this).html(), a, b, c);
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// });
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if (/IMG/.test(el[0].nodeName)) {
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var orig_path = el[0].src;
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if (new RegExp(path, 'i').test(orig_path)) return;
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el[0].src = path;
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return trigger(el[0].src);
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}
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var last_path = el.data(this.data_attr + '-last-path'),
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self = this;
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if (last_path == path) return;
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if (/\.(gif|jpg|jpeg|tiff|png)([?#].*)?/i.test(path)) {
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$(el).css('background-image', 'url('+path+')');
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el.data('interchange-last-path', path);
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return trigger(path);
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}
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return $.get(path, function (response) {
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el.html(response);
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el.data(self.data_attr + '-last-path', path);
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trigger();
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});
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}
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}
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},
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init : function (scope, method, options) {
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Foundation.inherit(this, 'throttle random_str');
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this.data_attr = this.set_data_attr();
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$.extend(true, this.settings, method, options);
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this.bindings(method, options);
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this.load('images');
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this.load('nodes');
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},
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get_media_hash : function() {
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var mediaHash='';
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for (var queryName in this.settings.named_queries ) {
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mediaHash += matchMedia(this.settings.named_queries[queryName]).matches.toString();
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}
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return mediaHash;
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},
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events : function () {
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var self = this, prevMediaHash;
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$(window)
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.off('.interchange')
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.on('resize.fndtn.interchange', self.throttle(function () {
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var currMediaHash = self.get_media_hash();
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if (currMediaHash !== prevMediaHash) {
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self.resize();
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}
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prevMediaHash = currMediaHash;
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}, 50));
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return this;
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},
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resize : function () {
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var cache = this.cache;
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if(!this.images_loaded || !this.nodes_loaded) {
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setTimeout($.proxy(this.resize, this), 50);
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return;
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}
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for (var uuid in cache) {
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if (cache.hasOwnProperty(uuid)) {
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var passed = this.results(uuid, cache[uuid]);
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if (passed) {
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this.settings.directives[passed
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.scenario[1]].call(this, passed.el, passed.scenario[0], function () {
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if (arguments[0] instanceof Array) {
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var args = arguments[0];
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} else {
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var args = Array.prototype.slice.call(arguments, 0);
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}
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passed.el.trigger(passed.scenario[1], args);
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});
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}
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}
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}
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},
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results : function (uuid, scenarios) {
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var count = scenarios.length;
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if (count > 0) {
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var el = this.S('[' + this.add_namespace('data-uuid') + '="' + uuid + '"]');
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while (count--) {
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var mq, rule = scenarios[count][2];
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if (this.settings.named_queries.hasOwnProperty(rule)) {
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mq = matchMedia(this.settings.named_queries[rule]);
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} else {
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mq = matchMedia(rule);
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}
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if (mq.matches) {
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return {el: el, scenario: scenarios[count]};
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}
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}
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}
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return false;
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},
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load : function (type, force_update) {
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if (typeof this['cached_' + type] === 'undefined' || force_update) {
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this['update_' + type]();
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}
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return this['cached_' + type];
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},
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update_images : function () {
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var images = this.S('img[' + this.data_attr + ']'),
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count = images.length,
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i = count,
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loaded_count = 0,
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data_attr = this.data_attr;
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this.cache = {};
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this.cached_images = [];
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this.images_loaded = (count === 0);
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while (i--) {
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loaded_count++;
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if (images[i]) {
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var str = images[i].getAttribute(data_attr) || '';
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if (str.length > 0) {
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this.cached_images.push(images[i]);
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}
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}
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if (loaded_count === count) {
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this.images_loaded = true;
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this.enhance('images');
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}
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}
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return this;
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},
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update_nodes : function () {
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var nodes = this.S('[' + this.data_attr + ']').not('img'),
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count = nodes.length,
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i = count,
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loaded_count = 0,
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data_attr = this.data_attr;
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this.cached_nodes = [];
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this.nodes_loaded = (count === 0);
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while (i--) {
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loaded_count++;
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var str = nodes[i].getAttribute(data_attr) || '';
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if (str.length > 0) {
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this.cached_nodes.push(nodes[i]);
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}
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if(loaded_count === count) {
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this.nodes_loaded = true;
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this.enhance('nodes');
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}
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}
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return this;
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},
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enhance : function (type) {
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var i = this['cached_' + type].length;
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while (i--) {
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this.object($(this['cached_' + type][i]));
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}
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return $(window).trigger('resize').trigger('resize.fndtn.interchange');
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},
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convert_directive : function (directive) {
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var trimmed = this.trim(directive);
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if (trimmed.length > 0) {
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return trimmed;
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}
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return 'replace';
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},
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parse_scenario : function (scenario) {
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// This logic had to be made more complex since some users were using commas in the url path
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// So we cannot simply just split on a comma
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var directive_match = scenario[0].match(/(.+),\s*(\w+)\s*$/),
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media_query = scenario[1];
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if (directive_match) {
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var path = directive_match[1],
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directive = directive_match[2];
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}
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else {
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var cached_split = scenario[0].split(/,\s*$/),
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path = cached_split[0],
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directive = '';
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}
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return [this.trim(path), this.convert_directive(directive), this.trim(media_query)];
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},
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object : function(el) {
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var raw_arr = this.parse_data_attr(el),
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scenarios = [],
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i = raw_arr.length;
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if (i > 0) {
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while (i--) {
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var split = raw_arr[i].split(/\((.*?)(\))$/);
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if (split.length > 1) {
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var params = this.parse_scenario(split);
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scenarios.push(params);
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}
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}
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}
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return this.store(el, scenarios);
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},
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store : function (el, scenarios) {
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var uuid = this.random_str(),
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current_uuid = el.data(this.add_namespace('uuid', true));
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if (this.cache[current_uuid]) return this.cache[current_uuid];
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el.attr(this.add_namespace('data-uuid'), uuid);
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return this.cache[uuid] = scenarios;
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},
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trim : function(str) {
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if (typeof str === 'string') {
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return $.trim(str);
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}
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return str;
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},
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set_data_attr: function (init) {
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if (init) {
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if (this.namespace.length > 0) {
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return this.namespace + '-' + this.settings.load_attr;
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}
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return this.settings.load_attr;
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}
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if (this.namespace.length > 0) {
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return 'data-' + this.namespace + '-' + this.settings.load_attr;
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}
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return 'data-' + this.settings.load_attr;
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},
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parse_data_attr : function (el) {
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var raw = el.attr(this.attr_name()).split(/\[(.*?)\]/),
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i = raw.length,
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output = [];
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while (i--) {
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if (raw[i].replace(/[\W\d]+/, '').length > 4) {
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output.push(raw[i]);
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}
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}
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return output;
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},
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reflow : function () {
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this.load('images', true);
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this.load('nodes', true);
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}
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};
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}(jQuery, window, window.document));
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