248 lines
		
	
	
		
			8.1 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			248 lines
		
	
	
		
			8.1 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| (function($){
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|   $.fn.bonsai = function(options) {
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|     var args = arguments;
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|     return this.each(function() {
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|       var bonsai = $(this).data('bonsai');
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|       if (!bonsai) {
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|         bonsai = new Bonsai(this, options);
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|         $(this).data('bonsai', bonsai);
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|       }
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|       if (typeof options == 'string') {
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|         var method = options;
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|         bonsai[method].apply(bonsai, [].slice.call(args, 1));
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|       }
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|     });
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|   };
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|   $.bonsai = {};
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|   $.bonsai.defaults = {
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|     expandAll: false, // boolean expands all items
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|     expand: null, // function to expand an item
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|     collapse: null, // function to collapse an item
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|     checkboxes: false, // requires jquery.qubit
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|     // createCheckboxes: creates checkboxes for each list item.
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|     //
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|     // The name and value for the checkboxes can be declared in the
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|     // markup using `data-name` and `data-value`.
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|     //
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|     // The name is inherited from parent items if not specified.
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|     //
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|     // Checked state can be indicated using `data-checked`.
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|     createCheckboxes: false,
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|     // handleDuplicateCheckboxes: adds onChange bindings to update
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|     // any other checkboxes that have the same value.
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|     handleDuplicateCheckboxes: false,
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|     selectAllExclude: null
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|   };
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|   var Bonsai = function(el, options) {
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|     var self = this;
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|     options = options || {};
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|     this.options = $.extend({}, $.bonsai.defaults, options);
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|     this.el = $(el).addClass('bonsai').data('bonsai', this);
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|     this.update();
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|     if (this.isRootNode()) {
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|       if (this.options.handleDuplicateCheckboxes) this.handleDuplicates();
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|       if (this.options.checkboxes) this.el.qubit(this.options);
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|       if (this.options.addExpandAll) this.addExpandAllLink();
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|       if (this.options.addSelectAll) this.addSelectAllLink();
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|       this.el.on('click', '.thumb', function(ev) {
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|         self.toggle($(ev.currentTarget).closest('li'));
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|       });
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|     }
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|     if (this.options.expandAll) this.expandAll();
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|   };
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|   Bonsai.prototype = {
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|     isRootNode: function() {
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|       return this.options.scope == this.el;
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|     },
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|     toggle: function(listItem) {
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|       if (!$(listItem).hasClass('expanded')) {
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|         this.expand(listItem);
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|       }
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|       else {
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|         this.collapse(listItem);
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|       }
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|     },
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|     expand: function(listItem) {
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|       this.setExpanded(listItem, true);
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|     },
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|     collapse: function(listItem) {
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|       this.setExpanded(listItem, false);
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|     },
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|     setExpanded: function(listItem, expanded) {
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|       listItem = $(listItem);
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|       if (listItem.length > 1) {
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|         var self = this;
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|         listItem.each(function() {
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|           self.setExpanded(this, expanded);
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|         });
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|         return;
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|       }
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|       if (expanded) {
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|         if (!listItem.data('subList')) return;
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|         listItem = $(listItem).addClass('expanded')
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|           .removeClass('collapsed');
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|         $(listItem.data('subList')).css('height', 'auto');
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|       }
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|       else {
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|         listItem = $(listItem).addClass('collapsed')
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|           .removeClass('expanded');
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|         $(listItem.data('subList')).height(0);
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|       }
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|     },
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|     expandAll: function() {
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|       this.expand(this.el.find('li'));
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|     },
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|     collapseAll: function() {
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|       this.collapse(this.el.find('li'));
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|     },
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|     update: function() {
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|       var self = this;
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|       // store the scope in the options for child nodes
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|       if (!this.options.scope) {
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|         this.options.scope = this.el;
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|       }
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|       // look for a nested list (if any)
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|       this.el.children().each(function() {
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|         var item = $(this);
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|         if (self.options.createCheckboxes) self.insertCheckbox(item);
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|         // insert a thumb if it doesn't already exist
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|         if (item.children().filter('.thumb').length == 0) {
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|           var thumb = $('<div class="thumb"></div>');
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|           item.prepend(thumb);
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|         }
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|         var subLists = item.children().filter('ol, ul');
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| 				item.toggleClass('has-children', subLists.find('li').length > 0);
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|         // if there is a child list
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|         subLists.each(function() {
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|           // that's not empty
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|           if ($('li', this).length == 0) {
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|             return;
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|           }
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|           // then this el has children
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|           item.data('subList', this);
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|           // collapse the nested list
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|           if (item.hasClass('expanded')) {
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|             self.expand(item);
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|           }
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|           else {
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|             self.collapse(item);
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|           }
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|           // handle any deeper nested lists
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|           var exists = !!$(this).data('bonsai');
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|           $(this).bonsai(exists ? 'update' : self.options);
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|         });
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|       });
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|       this.expand = this.options.expand || this.expand;
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|       this.collapse = this.options.collapse || this.collapse;
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|     },
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|     insertCheckbox: function(listItem) {
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|       if (listItem.find('> input[type=checkbox]').length) return;
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|       var id = this.generateId(listItem),
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|           checkbox = $('<input type="checkbox" name="'
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|             + this.getCheckboxName(listItem) + '" id="' + id + '" /> '
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|           ),
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|           children = listItem.children(),
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|           // get the first text node for the label
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|           text = listItem.contents().filter(function() {
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|             return this.nodeType == 3;
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|           }).first();
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|       checkbox.val(listItem.data('value'));
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|       checkbox.prop('checked', listItem.data('checked'))
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|       children.remove();
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|       listItem.append(checkbox)
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|         .append(
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|           $('<label for="' + id + '">').append(text ? text : children.first())
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|         )
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|         .append(text ? children : children.slice(1));
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|     },
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|     handleDuplicates: function() {
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|       var self = this;
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|       self.el.on('change', 'input[type=checkbox]', function(ev) {
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|         var checkbox = $(ev.target);
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|         if (!checkbox.val()) return;
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|         // select all duplicate checkboxes that need to be updated
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|         var selector = 'input[type=checkbox]'
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|             + '[value="' + checkbox.val() + '"]'
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|             + '[name="' + checkbox.attr('name') + '"]'
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|             + (checkbox.prop('checked') ? ':not(:checked)' : ':checked');
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|         self.el.find(selector).prop({
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|           checked: checkbox.prop('checked'),
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|           indeterminate: checkbox.prop('indeterminate')
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|         }).trigger('change');
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|       });
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|     },
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|     idPrefix: 'checkbox-',
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|     generateId: function(listItem) {
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|       do {
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|         var id = this.idPrefix + Bonsai.uniqueId++;
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|       }
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|       while($('#' + id).length > 0);
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|       return id;
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|     },
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|     getCheckboxName: function(listItem) {
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|       return listItem.data('name')
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|         || listItem.parents().filter('[data-name]').data('name');
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|     },
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|     addExpandAllLink: function() {
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|       var self = this;
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|       $('<div class="expand-all">')
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|         .append($('<a class="all">Expand all</a>')
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|           .on('click', function() {
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|             self.expandAll();
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|           })
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|         )
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|         .append('<i class="separator"></i>')
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|         .append($('<a class="none">Collapse all</a>')
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|           .on('click', function() {
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|             self.collapseAll();
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|           })
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|         )
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|         .insertBefore(this.el);
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|     },
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|     addSelectAllLink: function() {
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|       var scope = this.options.scope,
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|           self = this;
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|       function getCheckboxes() {
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|         // return all checkboxes that are not in hidden list items
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|         return scope.find('li')
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|           .filter(self.options.selectAllExclude || function() {
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|             return $(this).css('display') != 'none';
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|           })
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|           .find('> input[type=checkbox]');
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|       }
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|       $('<div class="check-all">')
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|         .append($('<a class="all">Select all</a>')
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|           .css('cursor', 'pointer')
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|           .on('click', function() {
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|             getCheckboxes().prop({
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|               checked: true,
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|               indeterminate: false
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|             });
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|           })
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|       )
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|         .append('<i class="separator"></i>')
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|         .append($('<a class="none">Select none</a>')
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|           .css('cursor', 'pointer')
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|           .on('click', function() {
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|             getCheckboxes().prop({
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|               checked: false,
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|               indeterminate: false
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|             });
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|           })
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|       )
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|         .insertAfter(this.el);
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|     },
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|     setCheckedValues: function(values) {
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|       var all = this.options.scope.find('input[type=checkbox]');
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|       $.each(values, function(key, value) {
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|         all.filter('[value="' + value + '"]')
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|           .prop('checked', true)
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|           .trigger('change');
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|       });
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|     }
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|   };
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|   $.extend(Bonsai, {
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|     uniqueId: 0
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|   });
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| }(jQuery));
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