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/*********************************************************
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* taxonomic_children plugin
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*********************************************************
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*
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* Expected dom structure:
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* <span data-cdm-taxon-uuid="{taxon-uuid}"> ... </span>
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*
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* based on https://github.com/johndugan/jquery-plugin-boilerplate
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*/
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/*
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The semi-colon before the function invocation is a safety net against
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concatenated scripts and/or other plugins which may not be closed properly.
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"undefined" is used because the undefined global variable in ECMAScript 3
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is mutable (ie. it can be changed by someone else). Because we don't pass a
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value to undefined when the anonymyous function is invoked, we ensure that
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undefined is truly undefined. Note, in ECMAScript 5 undefined can no
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longer be modified.
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"window" and "document" are passed as local variables rather than global.
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This (slightly) quickens the resolution process.
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*/
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;(function ( $, window, document, undefined ) {
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/*
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Store the name of the plugin in the "pluginName" variable. This
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variable is used in the "Plugin" constructor below, as well as the
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plugin wrapper to construct the key for the "$.data" method.
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More: http://api.jquery.com/jquery.data/
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*/
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var pluginName = 'taxonomic_children';
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/*
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The "Plugin" constructor, builds a new instance of the plugin for the
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DOM node(s) that the plugin is called on. For example,
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"$('h1').pluginName();" creates a new instance of pluginName for
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all h1's.
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*/
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// Create the plugin constructor
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function Plugin ( element, options ) {
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/*
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Provide local access to the DOM node(s) that called the plugin,
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as well local access to the plugin name and default options.
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*/
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this.element = element;
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this._name = pluginName;
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this._defaults = $.fn[pluginName].defaults;
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/*
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The "$.extend" method merges the contents of two or more objects,
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and stores the result in the first object. The first object is
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empty so that we don't alter the default options for future
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instances of the plugin.
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More: http://api.jquery.com/jquery.extend/
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*/
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this.options = $.extend( {}, this._defaults, options );
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// firebug console stub (avoids errors if firebug is not active)
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if (typeof console === "undefined") {
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console = {
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log: function () {
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}
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};
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}
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/*
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The "init" method is the starting point for all plugin logic.
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Calling the init method here in the "Plugin" constructor function
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allows us to store all methods (including the init method) in the
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plugin's prototype. Storing methods required by the plugin in its
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prototype lowers the memory footprint, as each instance of the
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plugin does not need to duplicate all of the same methods. Rather,
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each instance can inherit the methods from the constructor
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function's prototype.
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*/
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this.init();
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}
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// Avoid Plugin.prototype conflicts
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$.extend(Plugin.prototype, {
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// Initialization logic
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init: function () {
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/*
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Create additional methods below and call them via
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"this.myFunction(arg1, arg2)", ie: "this.buildCache();".
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Note, you can access the DOM node(s), plugin name, default
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plugin options and custom plugin options for a each instance
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of the plugin by using the variables "this.element",
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"this._name", "this._defaults" and "this.options" created in
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the "Plugin" constructor function (as shown in the buildCache
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method below).
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*/
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this.isDataLoaded = false;
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this.buildCache();
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this.bindEvents();
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},
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// Remove plugin instance completely
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destroy: function() {
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/*
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The destroy method unbinds all events for the specific instance
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of the plugin, then removes all plugin data that was stored in
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the plugin instance using jQuery's .removeData method.
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Since we store data for each instance of the plugin in its
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instantiating element using the $.data method (as explained
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in the plugin wrapper below), we can call methods directly on
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the instance outside of the plugin initalization, ie:
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$('selector').data('plugin_myPluginName').someOtherFunction();
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Consequently, the destroy method can be called using:
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$('selector').data('plugin_myPluginName').destroy();
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*/
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this.unbindEvents();
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this.$element.removeData();
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},
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// Cache DOM nodes for performance
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buildCache: function () {
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/*
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Create variable(s) that can be accessed by other plugin
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functions. For example, "this.$element = $(this.element);"
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will cache a jQuery reference to the elementthat initialized
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the plugin. Cached variables can then be used in other methods.
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*/
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this.$element = $(this.element);
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this.taxonUuid = this.$element.attr('data-cdm-taxon-uuid');
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this.rankLimitUuid = this.$element.attr('data-rank-limit-uuid');
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if(this.rankLimitUuid == '0'){
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// '0' is used in the cdm_dataportal settings as value for 'no rank limit'
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this.rankLimitUuid = undefined;
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}
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if(this.$element.hasClass('classification-chooser')){
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this.classificationChooser = true;
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}
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this.destinationUri = this.$element.attr('data-destination-uri');
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this.classificationMode = this.$element.attr('data-cdm-classification-mode');
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if (this.$element.attr('data-cdm-align-with') == 'prev') {
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var prev = this.$element.prev();
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this.alignOffset = {
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'padding': prev.width(),
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'left' : prev.width()
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}
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} else {
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this.alignOffset = {
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'padding': this.$element.width(),
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'left' : '0'
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}
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}
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// Create new elements
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this.container = $('<div class="' + this._name + ' box-shadow-b-5-1"></div>')
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.css('background-color', 'rgba(255,255,255,0.7)')
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.css('position', 'absolute')
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.css('overflow', 'auto');
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this.children = $('<div class="children"></div>');
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this.loading_class_attr = 'fa fa-spinner fa-pulse';
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// used to preserve the class attributes of the icon
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this.icon_class_attr = null;
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this.container.append(this.children);
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},
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// Bind events that trigger methods
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bindEvents: function() {
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var plugin = this;
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/*
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Bind event(s) to handlers that trigger other functions, ie:
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"plugin.$element.on('click', function() {});". Note the use of
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the cached variable we created in the buildCache method.
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All events are namespaced, ie:
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".on('click'+'.'+this._name', function() {});".
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This allows us to unbind plugin-specific events using the
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unbindEvents method below.
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this works at earliest with v1.7, with 1.4.4 we need to use bind:
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*/
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plugin.$element.bind('mouseenter', function() { // 'mouseenter' or 'click' are appropriate candidates
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plugin.showChildren.call(plugin);
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});
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plugin.$element.bind('click', function (event){
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if(event.target == this){
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// prevents eg from executing clicks if the
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// trigger element is an <a href=""> element
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event.preventDefault();
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}
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event.stopPropagation();
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plugin.showChildren.call(plugin);
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});
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plugin.container.mouseleave(function (){
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plugin.hideChildren.call(plugin);
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});
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$(document).click(function (){
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plugin.hideChildren.call(plugin);
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});
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/*
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plugin.$element.children('i.fa').hover(
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function(){
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this.addClass(this.options.hoverClass);
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},
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function(){
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this.removeClass(this.options.hoverClass);
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}
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);
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*/
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},
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// Unbind events that trigger methods
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unbindEvents: function() {
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/*
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Unbind all events in our plugin's namespace that are attached
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to "this.$element".
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this works at earliest with v1.7, with 1.4.4 we need to unbind without
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namespace specificity
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*/
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this.$element.unbind('click');
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// TODO complete this ...
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},
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log: function (msg) {
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console.log('[' + this._name + '] ' + msg);
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},
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showChildren: function(){
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var plugin = this;
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var trigger_position = this.$element.position();
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this.log('trigger_position: ' + trigger_position.top + ', ' + trigger_position.left);
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// Unused; TODO when re-enabling this needs to be fixed
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// when using rotate, in IE and edge the child element are also rotated, need to reset child elements.
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// this.$element.addClass(this.options.activeClass);
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this.container.hide();
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if(!this.container.parent() || this.container.parent().length == 0){
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// first time this container is used
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this.$element.append(this.container);
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}
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this.baseHeight = this.$element.parent().height();
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this.lineHeight = this.$element.parent().css('line-height').replace('px', ''); // TODO use regex fur replace
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this.log('baseHeight: ' + this.baseHeight);
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this.log('lineHeight: ' + this.lineHeight);
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this.offset_container_top = this.lineHeight - trigger_position.top + 1;
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this.container
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.css('top', - this.offset_container_top + 'px')
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.css('left', (trigger_position.left - this.alignOffset.left) + 'px')
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.css('padding-left', this.alignOffset.padding + 'px')
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.css('padding-right', this.alignOffset.padding + 'px')
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.css('z-index', 10)
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.show();
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if(!this.isDataLoaded){
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this.icon_class_attr = this.$element.prev('i').attr('class'),
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this.$element.prev('i').attr('class', this.loading_class_attr);
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$.get(this.requestURI(undefined, undefined), function(html){
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plugin.handleDataLoaded(html);
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});
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} else {
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if(this.container.find('ul').length > 0) {
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this.container.show();
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this.adjustHeightAndMaxWidth();
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this.scrollToSelected();
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}
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}
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},
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hideChildren: function(){
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//return; // uncomment for debugging
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this.container.slideUp();
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//this.container.detach();
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},
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handleDataLoaded: function(html){
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this.isDataLoaded = true;
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var listContainer = $(html);
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if(listContainer[0].tagName != 'UL') {
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// unwrap from potential enclosing div, this is
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// necessary in case of compose_classification_selector
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listContainer = listContainer.children('ul');
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}
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this.container.hide();
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if(listContainer.children().length > 0) {
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this.children.append(listContainer);
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this.itemsCount = listContainer.children().length;
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this.container.show();
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this.adjustHeightAndMaxWidth();
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this.scrollToSelected();
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// data loading may take quite long
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// need to check asynchronously if the
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// mouse still is hovering
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var this_plugin = this;
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setTimeout(function() {
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this_plugin.checkMouseOver();
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},
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300);
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}
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this.$element.prev('i').attr('class', this.icon_class_attr);
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},
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calculateViewPortRows: function() {
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var max;
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if(this.options.viewPortRows.max) {
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max = this.options.viewPortRows.max;
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} else {
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// no absolute maximum defined: calculate the current max based on the window viewport
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max = Math.floor( ($(window).height() - this.element.getBoundingClientRect().top) / this.lineHeight) - 2;
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this.log('max: ' + max);
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}
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var rows = Math.max(this.itemsCount, this.options.viewPortRows.min);
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rows = Math.min(rows, max);
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this.log('rows: ' + max);
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return rows;
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},
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adjustHeightAndMaxWidth: function(){
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// adjustHeightAndMaxWidth
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var viewPortRows = this.calculateViewPortRows(this.itemsCount); //(itemsCount > this.options.viewPortRows.min ? this.options.viewPortRows.max : this.options.viewPortRows.min);
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this.log('itemsCount: ' + this.itemsCount + ' => viewPortRows: ' + viewPortRows);
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this.container.css('height', viewPortRows * this.lineHeight + 'px');
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this.children
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.css('padding-top', this.lineHeight + 'px') // one row above current
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.css('padding-bottom', (viewPortRows - 2) * this.lineHeight + 'px'); // subtract 2 lines (current + one above)
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// adjust width to avoid the container hang out of the viewport
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max_width = Math.floor($(window).width() - this.element.getBoundingClientRect().left - 40);
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this.log('max_width: ' + max_width);
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this.container.css('max-width', max_width + 'px');
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},
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scrollToSelected: function () {
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// first reset the scroll position to 0 so that all calculation are using the same reference position
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this.container.scrollTop(0);
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var scrollTarget = this.children.find(".focused");
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if(scrollTarget && scrollTarget.length > 0){
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var position = scrollTarget.position();
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if(position == undefined){
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// fix for IE >= 9 and Edge
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position = scrollTarget.offset();
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}
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var scroll_target_offset_top = position.top;
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this.log("scroll_target_offset_top: " + scroll_target_offset_top + ", offset_container_top: " + this.offset_container_top);
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this.container.scrollTop(scroll_target_offset_top - this.lineHeight + 1); // +1 yields a better result
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}
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},
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381
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requestURI: function(pageIndex, pageSize){
|
|
383
|
|
|
384
|
var contentRequest;
|
|
385
|
var renderFunction;
|
|
386
|
var proxyRequestQuery= '';
|
|
387
|
|
|
388
|
// pageIndex, pageSize are not yet used, prepared for future though
|
|
389
|
if(!pageIndex){
|
|
390
|
pageIndex = 0;
|
|
391
|
}
|
|
392
|
if(!pageSize) {
|
|
393
|
pageSize = 100;
|
|
394
|
}
|
|
395
|
|
|
396
|
if(this.classificationChooser){
|
|
397
|
renderFunction = this.options.renderFunction.classifications + '?destination=' + this.destinationUri;
|
|
398
|
contentRequest = 'NULL'; // using the plain compose function which does not require any data to be passes as parameter
|
|
399
|
|
|
400
|
} else {
|
|
401
|
renderFunction = this.options.renderFunction.taxonNodes;
|
|
402
|
proxyRequestQuery = '?currentTaxon=' + this.taxonUuid;
|
|
403
|
if(this.taxonUuid) {
|
|
404
|
if(this.classificationMode == 'siblings') {
|
|
405
|
contentRequest =
|
|
406
|
this.options.cdmWebappBaseUri
|
|
407
|
+ this.options.cdmWebappRequests.taxonSiblings
|
|
408
|
.replace('{classificationUuid}', this.options.classificationUuid)
|
|
409
|
.replace('{taxonUuid}', this.taxonUuid);
|
|
410
|
} else {
|
|
411
|
// default mode is 'children'
|
|
412
|
contentRequest =
|
|
413
|
this.options.cdmWebappBaseUri
|
|
414
|
+ this.options.cdmWebappRequests.taxonChildren
|
|
415
|
.replace('{classificationUuid}', this.options.classificationUuid)
|
|
416
|
.replace('{taxonUuid}', this.taxonUuid);
|
|
417
|
}
|
|
418
|
} else if(this.rankLimitUuid){
|
|
419
|
contentRequest =
|
|
420
|
this.options.cdmWebappBaseUri
|
|
421
|
+ this.options.cdmWebappRequests.childNodesAt
|
|
422
|
.replace('{classificationUuid}', this.options.classificationUuid)
|
|
423
|
.replace('{rankUuid}', this.rankLimitUuid);
|
|
424
|
} else {
|
|
425
|
contentRequest =
|
|
426
|
this.options.cdmWebappBaseUri
|
|
427
|
+ this.options.cdmWebappRequests.classificationRoot
|
|
428
|
.replace('{classificationUuid}', this.options.classificationUuid);
|
|
429
|
}
|
|
430
|
}
|
|
431
|
|
|
432
|
this.log("contentRequest: " + contentRequest);
|
|
433
|
|
|
434
|
var proxyRequest = this.options.proxyRequest
|
|
435
|
.replace('{contentRequest}', encodeURIComponent(encodeURIComponent(contentRequest)))
|
|
436
|
.replace('{renderFunction}', renderFunction);
|
|
437
|
|
|
438
|
var request = this.options.proxyBaseUri + '/' + proxyRequest + proxyRequestQuery;
|
|
439
|
this.log("finalRequest: " + request);
|
|
440
|
|
|
441
|
return request;
|
|
442
|
},
|
|
443
|
|
|
444
|
checkMouseOver: function(){
|
|
445
|
// see http://stackoverflow.com/questions/6035137/jquery-check-hover-status-before-start-trigger/6035278#6035278
|
|
446
|
//
|
|
447
|
// this.container.find(':hover').length == 0
|
|
448
|
// is(':hover')
|
|
449
|
//this.log('>>>> hover: ' + this.container.find(':hover').length + ' | ' + this.container.is(':hover') );
|
|
450
|
if(!this.container.is(':hover')){
|
|
451
|
this.hideChildren();
|
|
452
|
}
|
|
453
|
}
|
|
454
|
|
|
455
|
});
|
|
456
|
|
|
457
|
/*
|
|
458
|
Create a lightweight plugin wrapper around the "Plugin" constructor,
|
|
459
|
preventing against multiple instantiations.
|
|
460
|
|
|
461
|
More: http://learn.jquery.com/plugins/basic-plugin-creation/
|
|
462
|
*/
|
|
463
|
$.fn[pluginName] = function ( options ) {
|
|
464
|
this.each(function() {
|
|
465
|
if ( !$.data( this, "plugin_" + pluginName ) ) {
|
|
466
|
/*
|
|
467
|
Use "$.data" to save each instance of the plugin in case
|
|
468
|
the user wants to modify it. Using "$.data" in this way
|
|
469
|
ensures the data is removed when the DOM element(s) are
|
|
470
|
removed via jQuery methods, as well as when the userleaves
|
|
471
|
the page. It's a smart way to prevent memory leaks.
|
|
472
|
|
|
473
|
More: http://api.jquery.com/jquery.data/
|
|
474
|
*/
|
|
475
|
$.data( this, "plugin_" + pluginName, new Plugin( this, options ) );
|
|
476
|
}
|
|
477
|
});
|
|
478
|
/*
|
|
479
|
"return this;" returns the original jQuery object. This allows
|
|
480
|
additional jQuery methods to be chained.
|
|
481
|
*/
|
|
482
|
return this;
|
|
483
|
};
|
|
484
|
|
|
485
|
|
|
486
|
$.fn[pluginName].defaults = {
|
|
487
|
hoverClass: undefined, // unused
|
|
488
|
activeClass: undefined, // unused
|
|
489
|
/**
|
|
490
|
* uuid of the current classification - required
|
|
491
|
*/
|
|
492
|
classificationUuid: undefined,
|
|
493
|
/**
|
|
494
|
* uuid of the current taxon - required
|
|
495
|
*/
|
|
496
|
taxonUuid: undefined,
|
|
497
|
cdmWebappBaseUri: undefined,
|
|
498
|
proxyBaseUri: undefined,
|
|
499
|
cdmWebappRequests: {
|
|
500
|
taxonChildren: "portal/classification/{classificationUuid}/childNodesOf/{taxonUuid}",
|
|
501
|
taxonSiblings: "portal/classification/{classificationUuid}/siblingsOf/{taxonUuid}",
|
|
502
|
childNodesAt: "portal/classification/{classificationUuid}/childNodesAt/{rankUuid}.json",
|
|
503
|
classificationRoot: "portal/classification/{classificationUuid}/childNodes.json"
|
|
504
|
},
|
|
505
|
proxyRequest: "cdm_api/proxy/{contentRequest}/{renderFunction}",
|
|
506
|
renderFunction: {
|
|
507
|
taxonNodes: "cdm_taxontree",
|
|
508
|
classifications: "classification_selector"
|
|
509
|
},
|
|
510
|
// viewPortRows: if max is 'undefined' the height will be adapted to the window viewport
|
|
511
|
viewPortRows: {min: 3, max: undefined}
|
|
512
|
};
|
|
513
|
|
|
514
|
})( jQuery, window, document );
|