149 lines
3.6 KiB
JavaScript
149 lines
3.6 KiB
JavaScript
/* Tree()
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* ======
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* Converts a nested list into a multilevel
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* tree view menu.
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*
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* @Usage: $('.my-menu').tree(options)
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* or add [data-widget="tree"] to the ul element
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* Pass any option as data-option="value"
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*/
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+function ($) {
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'use strict';
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var DataKey = 'lte.tree';
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var Default = {
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animationSpeed: 500,
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accordion : true,
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followLink : false,
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trigger : '.treeview a'
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};
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var Selector = {
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tree : '.tree',
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treeview : '.treeview',
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treeviewMenu: '.treeview-menu',
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open : '.menu-open, .active',
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li : 'li',
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data : '[data-widget="tree"]',
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active : '.active'
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};
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var ClassName = {
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open: 'menu-open',
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tree: 'tree'
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};
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var Event = {
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collapsed: 'collapsed.tree',
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expanded : 'expanded.tree'
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};
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// Tree Class Definition
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// =====================
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var Tree = function (element, options) {
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this.element = element;
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this.options = options;
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$(this.element).addClass(ClassName.tree);
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$(Selector.treeview + Selector.active, this.element).addClass(ClassName.open);
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this._setUpListeners();
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};
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Tree.prototype.toggle = function (link, event) {
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var treeviewMenu = link.next(Selector.treeviewMenu);
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var parentLi = link.parent();
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var isOpen = parentLi.hasClass(ClassName.open);
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if (!parentLi.is(Selector.treeview)) {
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return;
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}
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if (!this.options.followLink || link.attr('href') === '#') {
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event.preventDefault();
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}
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if (isOpen) {
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this.collapse(treeviewMenu, parentLi);
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} else {
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this.expand(treeviewMenu, parentLi);
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}
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};
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Tree.prototype.expand = function (tree, parent) {
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var expandedEvent = $.Event(Event.expanded);
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if (this.options.accordion) {
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var openMenuLi = parent.siblings(Selector.open);
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var openTree = openMenuLi.children(Selector.treeviewMenu);
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this.collapse(openTree, openMenuLi);
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}
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parent.addClass(ClassName.open);
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tree.slideDown(this.options.animationSpeed, function () {
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$(this.element).trigger(expandedEvent);
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}.bind(this));
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};
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Tree.prototype.collapse = function (tree, parentLi) {
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var collapsedEvent = $.Event(Event.collapsed);
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//tree.find(Selector.open).removeClass(ClassName.open);
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parentLi.removeClass(ClassName.open);
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tree.slideUp(this.options.animationSpeed, function () {
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//tree.find(Selector.open + ' > ' + Selector.treeview).slideUp();
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$(this.element).trigger(collapsedEvent);
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// Collapse child items
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parentLi.find(Selector.treeview).removeClass(ClassName.open).find(Selector.treeviewMenu).hide();
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}.bind(this));
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};
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// Private
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Tree.prototype._setUpListeners = function () {
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var that = this;
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$(this.element).on('click', this.options.trigger, function (event) {
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that.toggle($(this), event);
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});
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};
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// Plugin Definition
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// =================
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function Plugin(option) {
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return this.each(function () {
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var $this = $(this);
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var data = $this.data(DataKey);
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if (!data) {
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var options = $.extend({}, Default, $this.data(), typeof option == 'object' && option);
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$this.data(DataKey, new Tree($this, options));
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}
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});
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}
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var old = $.fn.tree;
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$.fn.tree = Plugin;
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$.fn.tree.Constructor = Tree;
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// No Conflict Mode
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// ================
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$.fn.tree.noConflict = function () {
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$.fn.tree = old;
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return this;
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};
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// Tree Data API
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// =============
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$(window).on('load', function () {
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$(Selector.data).each(function () {
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Plugin.call($(this));
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});
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});
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}(jQuery);
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