--- /dev/null
+/*
+ * Treeview 1.4.2 - jQuery plugin to hide and show branches of a tree
+ *
+ * http://bassistance.de/jquery-plugins/jquery-plugin-treeview/
+ *
+ * Copyright Jörn Zaefferer
+ * Released under the MIT license:
+ * http://www.opensource.org/licenses/mit-license.php
+ */
+
+;(function($) {
+
+ // TODO rewrite as a widget, removing all the extra plugins
+ $.extend($.fn, {
+ swapClass: function(c1, c2) {
+ var c1Elements = this.filter('.' + c1);
+ this.filter('.' + c2).removeClass(c2).addClass(c1);
+ c1Elements.removeClass(c1).addClass(c2);
+ return this;
+ },
+ replaceClass: function(c1, c2) {
+ return this.filter('.' + c1).removeClass(c1).addClass(c2).end();
+ },
+ hoverClass: function(className) {
+ className = className || "hover";
+ return this.hover(function() {
+ $(this).addClass(className);
+ }, function() {
+ $(this).removeClass(className);
+ });
+ },
+ heightToggle: function(animated, callback) {
+ animated ?
+ this.animate({ height: "toggle" }, animated, callback) :
+ this.each(function(){
+ jQuery(this)[ jQuery(this).is(":hidden") ? "show" : "hide" ]();
+ if(callback)
+ callback.apply(this, arguments);
+ });
+ },
+ heightHide: function(animated, callback) {
+ if (animated) {
+ this.animate({ height: "hide" }, animated, callback);
+ } else {
+ this.hide();
+ if (callback)
+ this.each(callback);
+ }
+ },
+ prepareBranches: function(settings) {
+ if (!settings.prerendered) {
+ // mark last tree items
+ this.filter(":last-child:not(ul)").addClass(CLASSES.last);
+ // collapse whole tree, or only those marked as closed, anyway except those marked as open
+ this.filter((settings.collapsed ? "" : "." + CLASSES.closed) + ":not(." + CLASSES.open + ")").find(">ul").hide();
+ }
+ // return all items with sublists
+ return this.filter(":has(>ul)");
+ },
+ applyClasses: function(settings, toggler) {
+ // TODO use event delegation
+ this.filter(":has(>ul):not(:has(>a))").find(">span").unbind("click.treeview").bind("click.treeview", function(event) {
+ // don't handle click events on children, eg. checkboxes
+ if ( this == event.target )
+ toggler.apply($(this).next());
+ }).add( $("a", this) ).hoverClass();
+
+ if (!settings.prerendered) {
+ // handle closed ones first
+ this.filter(":has(>ul:hidden)")
+ .addClass(CLASSES.expandable)
+ .replaceClass(CLASSES.last, CLASSES.lastExpandable);
+
+ // handle open ones
+ this.not(":has(>ul:hidden)")
+ .addClass(CLASSES.collapsable)
+ .replaceClass(CLASSES.last, CLASSES.lastCollapsable);
+
+ // create hitarea if not present
+ var hitarea = this.find("div." + CLASSES.hitarea);
+ if (!hitarea.length)
+ hitarea = this.prepend("<div class=\"" + CLASSES.hitarea + "\"/>").find("div." + CLASSES.hitarea);
+ hitarea.removeClass().addClass(CLASSES.hitarea).each(function() {
+ var classes = "";
+ $.each($(this).parent().attr("class").split(" "), function() {
+ classes += this + "-hitarea ";
+ });
+ $(this).addClass( classes );
+ })
+ }
+
+ // apply event to hitarea
+ this.find("div." + CLASSES.hitarea).click( toggler );
+ },
+ treeview: function(settings) {
+
+ settings = $.extend({
+ cookieId: "treeview"
+ }, settings);
+
+ if ( settings.toggle ) {
+ var callback = settings.toggle;
+ settings.toggle = function() {
+ return callback.apply($(this).parent()[0], arguments);
+ };
+ }
+
+ // factory for treecontroller
+ function treeController(tree, control) {
+ // factory for click handlers
+ function handler(filter) {
+ return function() {
+ // reuse toggle event handler, applying the elements to toggle
+ // start searching for all hitareas
+ toggler.apply( $("div." + CLASSES.hitarea, tree).filter(function() {
+ // for plain toggle, no filter is provided, otherwise we need to check the parent element
+ return filter ? $(this).parent("." + filter).length : true;
+ }) );
+ return false;
+ };
+ }
+ // click on first element to collapse tree
+ $("a:eq(0)", control).click( handler(CLASSES.collapsable) );
+ // click on second to expand tree
+ $("a:eq(1)", control).click( handler(CLASSES.expandable) );
+ // click on third to toggle tree
+ $("a:eq(2)", control).click( handler() );
+ }
+
+ // handle toggle event
+ function toggler() {
+ $(this)
+ .parent()
+ // swap classes for hitarea
+ .find(">.hitarea")
+ .swapClass( CLASSES.collapsableHitarea, CLASSES.expandableHitarea )
+ .swapClass( CLASSES.lastCollapsableHitarea, CLASSES.lastExpandableHitarea )
+ .end()
+ // swap classes for parent li
+ .swapClass( CLASSES.collapsable, CLASSES.expandable )
+ .swapClass( CLASSES.lastCollapsable, CLASSES.lastExpandable )
+ // find child lists
+ .find( ">ul" )
+ // toggle them
+ .heightToggle( settings.animated, settings.toggle );
+ if ( settings.unique ) {
+ $(this).parent()
+ .siblings()
+ // swap classes for hitarea
+ .find(">.hitarea")
+ .replaceClass( CLASSES.collapsableHitarea, CLASSES.expandableHitarea )
+ .replaceClass( CLASSES.lastCollapsableHitarea, CLASSES.lastExpandableHitarea )
+ .end()
+ .replaceClass( CLASSES.collapsable, CLASSES.expandable )
+ .replaceClass( CLASSES.lastCollapsable, CLASSES.lastExpandable )
+ .find( ">ul" )
+ .heightHide( settings.animated, settings.toggle );
+ }
+ }
+ this.data("toggler", toggler);
+
+ function serialize() {
+ function binary(arg) {
+ return arg ? 1 : 0;
+ }
+ var data = [];
+ branches.each(function(i, e) {
+ data[i] = $(e).is(":has(>ul:visible)") ? 1 : 0;
+ });
+ $.cookie(settings.cookieId, data.join(""), settings.cookieOptions );
+ }
+
+ function deserialize() {
+ var stored = $.cookie(settings.cookieId);
+ if ( stored ) {
+ var data = stored.split("");
+ branches.each(function(i, e) {
+ $(e).find(">ul")[ parseInt(data[i]) ? "show" : "hide" ]();
+ });
+ }
+ }
+
+ // add treeview class to activate styles
+ this.addClass("treeview");
+
+ // prepare branches and find all tree items with child lists
+ var branches = this.find("li").prepareBranches(settings);
+
+ switch(settings.persist) {
+ case "cookie":
+ var toggleCallback = settings.toggle;
+ settings.toggle = function() {
+ serialize();
+ if (toggleCallback) {
+ toggleCallback.apply(this, arguments);
+ }
+ };
+ deserialize();
+ break;
+ case "location":
+ var current = this.find("a").filter(function() {
+ return location.href.toLowerCase().indexOf(this.href.toLowerCase()) == 0;
+ });
+ if ( current.length ) {
+ // TODO update the open/closed classes
+ var items = current.addClass("selected").parents("ul, li").add( current.next() ).show();
+ if (settings.prerendered) {
+ // if prerendered is on, replicate the basic class swapping
+ items.filter("li")
+ .swapClass( CLASSES.collapsable, CLASSES.expandable )
+ .swapClass( CLASSES.lastCollapsable, CLASSES.lastExpandable )
+ .find(">.hitarea")
+ .swapClass( CLASSES.collapsableHitarea, CLASSES.expandableHitarea )
+ .swapClass( CLASSES.lastCollapsableHitarea, CLASSES.lastExpandableHitarea );
+ }
+ }
+ break;
+ }
+
+ branches.applyClasses(settings, toggler);
+
+ // if control option is set, create the treecontroller and show it
+ if ( settings.control ) {
+ treeController(this, settings.control);
+ $(settings.control).show();
+ }
+
+ return this;
+ }
+ });
+
+ // classes used by the plugin
+ // need to be styled via external stylesheet, see first example
+ $.treeview = {};
+ var CLASSES = ($.treeview.classes = {
+ open: "open",
+ closed: "closed",
+ expandable: "expandable",
+ expandableHitarea: "expandable-hitarea",
+ lastExpandableHitarea: "lastExpandable-hitarea",
+ collapsable: "collapsable",
+ collapsableHitarea: "collapsable-hitarea",
+ lastCollapsableHitarea: "lastCollapsable-hitarea",
+ lastCollapsable: "lastCollapsable",
+ lastExpandable: "lastExpandable",
+ last: "last",
+ hitarea: "hitarea"
+ });
+
+})(jQuery);
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