/* Copyright (c) 2008, Yahoo! Inc. All rights reserved. Code licensed under the BSD License: http://developer.yahoo.net/yui/license.txt version: 2.6.0 */ (function () { var Dom = YAHOO.util.Dom, Event = YAHOO.util.Event, Lang = YAHOO.lang, Widget = YAHOO.widget; /** * The treeview widget is a generic tree building tool. * @module treeview * @title TreeView Widget * @requires yahoo, event * @optional animation * @namespace YAHOO.widget */ /** * Contains the tree view state data and the root node. * * @class TreeView * @uses YAHOO.util.EventProvider * @constructor * @param {string|HTMLElement} id The id of the element, or the element itself that the tree will be inserted into. Existing markup in this element, if valid, will be used to build the tree * @param {Array|object|string} oConfig (optional) An array containing the definition of the tree. Objects will be converted to arrays of one element. A string will produce a single TextNode * */ YAHOO.widget.TreeView = function(id, oConfig) { if (id) { this.init(id); } if (oConfig) { if (!Lang.isArray(oConfig)) { oConfig = [oConfig]; } this.buildTreeFromObject(oConfig); } else if (Lang.trim(this._el.innerHTML)) { this.buildTreeFromMarkup(id); } }; var TV = Widget.TreeView; TV.prototype = { /** * The id of tree container element * @property id * @type String */ id: null, /** * The host element for this tree * @property _el * @private * @type HTMLelement */ _el: null, /** * Flat collection of all nodes in this tree. This is a sparse * array, so the length property can't be relied upon for a * node count for the tree. * @property _nodes * @type Node[] * @private */ _nodes: null, /** * We lock the tree control while waiting for the dynamic loader to return * @property locked * @type boolean */ locked: false, /** * The animation to use for expanding children, if any * @property _expandAnim * @type string * @private */ _expandAnim: null, /** * The animation to use for collapsing children, if any * @property _collapseAnim * @type string * @private */ _collapseAnim: null, /** * The current number of animations that are executing * @property _animCount * @type int * @private */ _animCount: 0, /** * The maximum number of animations to run at one time. * @property maxAnim * @type int */ maxAnim: 2, /** * Whether there is any subscriber to dblClickEvent * @property _hasDblClickSubscriber * @type boolean * @private */ _hasDblClickSubscriber: false, /** * Stores the timer used to check for double clicks * @property _dblClickTimer * @type window.timer object * @private */ _dblClickTimer: null, /** * Sets up the animation for expanding children * @method setExpandAnim * @param {string} type the type of animation (acceptable values defined * in YAHOO.widget.TVAnim) */ setExpandAnim: function(type) { this._expandAnim = (Widget.TVAnim.isValid(type)) ? type : null; }, /** * Sets up the animation for collapsing children * @method setCollapseAnim * @param {string} the type of animation (acceptable values defined in * YAHOO.widget.TVAnim) */ setCollapseAnim: function(type) { this._collapseAnim = (Widget.TVAnim.isValid(type)) ? type : null; }, /** * Perform the expand animation if configured, or just show the * element if not configured or too many animations are in progress * @method animateExpand * @param el {HTMLElement} the element to animate * @param node {YAHOO.util.Node} the node that was expanded * @return {boolean} true if animation could be invoked, false otherwise */ animateExpand: function(el, node) { if (this._expandAnim && this._animCount < this.maxAnim) { // this.locked = true; var tree = this; var a = Widget.TVAnim.getAnim(this._expandAnim, el, function() { tree.expandComplete(node); }); if (a) { ++this._animCount; this.fireEvent("animStart", { "node": node, "type": "expand" }); a.animate(); } return true; } return false; }, /** * Perform the collapse animation if configured, or just show the * element if not configured or too many animations are in progress * @method animateCollapse * @param el {HTMLElement} the element to animate * @param node {YAHOO.util.Node} the node that was expanded * @return {boolean} true if animation could be invoked, false otherwise */ animateCollapse: function(el, node) { if (this._collapseAnim && this._animCount < this.maxAnim) { // this.locked = true; var tree = this; var a = Widget.TVAnim.getAnim(this._collapseAnim, el, function() { tree.collapseComplete(node); }); if (a) { ++this._animCount; this.fireEvent("animStart", { "node": node, "type": "collapse" }); a.animate(); } return true; } return false; }, /** * Function executed when the expand animation completes * @method expandComplete */ expandComplete: function(node) { --this._animCount; this.fireEvent("animComplete", { "node": node, "type": "expand" }); // this.locked = false; }, /** * Function executed when the collapse animation completes * @method collapseComplete */ collapseComplete: function(node) { --this._animCount; this.fireEvent("animComplete", { "node": node, "type": "collapse" }); // this.locked = false; }, /** * Initializes the tree * @method init * @parm {string|HTMLElement} id the id of the element that will hold the tree * @private */ init: function(id) { this._el = Dom.get(id); this.id = Dom.generateId(this._el,"yui-tv-auto-id-"); /** * When animation is enabled, this event fires when the animation * starts * @event animStart * @type CustomEvent * @param {YAHOO.widget.Node} node the node that is expanding/collapsing * @parm {String} type the type of animation ("expand" or "collapse") */ this.createEvent("animStart", this); /** * When animation is enabled, this event fires when the animation * completes * @event animComplete * @type CustomEvent * @param {YAHOO.widget.Node} node the node that is expanding/collapsing * @parm {String} type the type of animation ("expand" or "collapse") */ this.createEvent("animComplete", this); /** * Fires when a node is going to be collapsed. Return false to stop * the collapse. * @event collapse * @type CustomEvent * @param {YAHOO.widget.Node} node the node that is collapsing */ this.createEvent("collapse", this); /** * Fires after a node is successfully collapsed. This event will not fire * if the "collapse" event was cancelled. * @event collapseComplete * @type CustomEvent * @param {YAHOO.widget.Node} node the node that was collapsed */ this.createEvent("collapseComplete", this); /** * Fires when a node is going to be expanded. Return false to stop * the collapse. * @event expand * @type CustomEvent * @param {YAHOO.widget.Node} node the node that is expanding */ this.createEvent("expand", this); /** * Fires after a node is successfully expanded. This event will not fire * if the "expand" event was cancelled. * @event expandComplete * @type CustomEvent * @param {YAHOO.widget.Node} node the node that was expanded */ this.createEvent("expandComplete", this); /** * Fires when the Enter key is pressed on a node that has the focus * @event enterKeyPressed * @type CustomEvent * @param {YAHOO.widget.Node} node the node that has the focus */ this.createEvent("enterKeyPressed", this); /** * Fires when the label in a TextNode or MenuNode or content in an HTMLNode receives a Click. * The listener may return false to cancel toggling and focusing on the node. * @event clickEvent * @type CustomEvent * @param oArgs.event {HTMLEvent} The event object * @param oArgs.node {YAHOO.widget.Node} node the node that was clicked */ this.createEvent("clickEvent", this); /** * Fires when the label in a TextNode or MenuNode or content in an HTMLNode receives a double Click * @event dblClickEvent * @type CustomEvent * @param oArgs.event {HTMLEvent} The event object * @param oArgs.node {YAHOO.widget.Node} node the node that was clicked */ var self = this; this.createEvent("dblClickEvent", { scope:this, onSubscribeCallback: function() { self._hasDblClickSubscriber = true; } }); /** * Custom event that is fired when the text node label is clicked. * The node clicked is provided as an argument * * @event labelClick * @type CustomEvent * @param {YAHOO.widget.Node} node the node clicked * @deprecated use clickEvent or dblClickEvent */ this.createEvent("labelClick", this); this._nodes = []; // store a global reference TV.trees[this.id] = this; // Set up the root node this.root = new Widget.RootNode(this); var LW = Widget.LogWriter; // YAHOO.util.Event.onContentReady(this.id, this.handleAvailable, this, true); // YAHOO.util.Event.on(this.id, "click", this.handleClick, this, true); }, //handleAvailable: function() { //var Event = YAHOO.util.Event; //Event.on(this.id, //}, /** * Builds the TreeView from an object. This is the method called by the constructor to build the tree when it has a second argument. * @method buildTreeFromObject * @param oConfig {Array} array containing a full description of the tree * */ buildTreeFromObject: function (oConfig) { var build = function (parent, oConfig) { var i, item, node, children, type, NodeType, ThisType; for (i = 0; i < oConfig.length; i++) { item = oConfig[i]; if (Lang.isString(item)) { node = new Widget.TextNode(item, parent); } else if (Lang.isObject(item)) { children = item.children; delete item.children; type = item.type || 'text'; delete item.type; switch (type.toLowerCase()) { case 'text': node = new Widget.TextNode(item, parent); break; case 'menu': node = new Widget.MenuNode(item, parent); break; case 'html': node = new Widget.HTMLNode(item, parent); break; default: NodeType = Widget[type]; if (Lang.isObject(NodeType)) { for (ThisType = NodeType; ThisType && ThisType !== Widget.Node; ThisType = ThisType.superclass.constructor) {} if (ThisType) { node = new NodeType(item, parent); } else { } } else { } } if (children) { build(node,children); } } else { } } }; build(this.root,oConfig); }, /** * Builds the TreeView from existing markup. Markup should consist of <UL> or <OL> elements, possibly nested. * Depending what the <LI> elements contain the following will be created: * Only the first outermost (un-)ordered list in the markup and its children will be parsed. * Tree will be fully collapsed. * HTMLNodes have hasIcon set to true if the markup for that node has a className called hasIcon. * @method buildTreeFromMarkup * @param {string|HTMLElement} id the id of the element that contains the markup or a reference to it. */ buildTreeFromMarkup: function (id) { var build = function (parent,markup) { var el, node, child, text; for (el = Dom.getFirstChild(markup); el; el = Dom.getNextSibling(el)) { if (el.nodeType == 1) { switch (el.tagName.toUpperCase()) { case 'LI': for (child = el.firstChild; child; child = child.nextSibling) { if (child.nodeType == 3) { text = Lang.trim(child.nodeValue); if (text.length) { node = new Widget.TextNode(text, parent, false); } } else { switch (child.tagName.toUpperCase()) { case 'UL': case 'OL': build(node,child); break; case 'A': node = new Widget.TextNode({ label:child.innerHTML, href: child.href, target:child.target, title:child.title ||child.alt },parent,false); break; default: node = new Widget.HTMLNode(child.parentNode.innerHTML, parent, false, true); break; } } } break; case 'UL': case 'OL': build(node, el); break; } } } }; var markup = Dom.getChildrenBy(Dom.get(id),function (el) { var tag = el.tagName.toUpperCase(); return tag == 'UL' || tag == 'OL'; }); if (markup.length) { build(this.root, markup[0]); } else { } }, /** * Renders the tree boilerplate and visible nodes * @method render */ render: function() { var html = this.root.getHtml(); this.getEl().innerHTML = html; var getTarget = function (ev) { var target = Event.getTarget(ev); if (target.tagName.toUpperCase() != 'TD') { target = Dom.getAncestorByTagName(target,'td'); } if (Lang.isNull(target)) { return null; } if (target.className.length === 0) { target = target.previousSibling; if (Lang.isNull(target)) { return null; } } return target; }; if (!this._hasEvents) { Event.on( this.getEl(), 'click', function (ev) { var self = this, el = Event.getTarget(ev), node = this.getNodeByElement(el); if (!node) { return; } var toggle = function () { if (node.expanded) { node.collapse(); } else { node.expand(); } node.focus(); }; if (Dom.hasClass(el, node.labelStyle) || Dom.getAncestorByClassName(el,node.labelStyle)) { this.fireEvent('labelClick',node); } while (el && !Dom.hasClass(el.parentNode,'ygtvrow') && !/ygtv[tl][mp]h?h?/.test(el.className)) { el = Dom.getAncestorByTagName(el,'td'); } if (el) { // If it is a spacer cell, do nothing if (/ygtv(blank)?depthcell/.test(el.className)) { return;} // If it is a toggle cell, toggle if (/ygtv[tl][mp]h?h?/.test(el.className)) { toggle(); } else { if (this._dblClickTimer) { window.clearTimeout(this._dblClickTimer); this._dblClickTimer = null; } else { if (this._hasDblClickSubscriber) { this._dblClickTimer = window.setTimeout(function () { self._dblClickTimer = null; if (self.fireEvent('clickEvent', {event:ev,node:node}) !== false) { toggle(); } }, 200); } else { if (self.fireEvent('clickEvent', {event:ev,node:node}) !== false) { toggle(); } } } } } }, this, true ); Event.on( this.getEl(), 'dblclick', function (ev) { if (!this._hasDblClickSubscriber) { return; } var el = Event.getTarget(ev); while (!Dom.hasClass(el.parentNode,'ygtvrow')) { el = Dom.getAncestorByTagName(el,'td'); } if (/ygtv(blank)?depthcell/.test(el.className)) { return;} if (!(/ygtv[tl][mp]h?h?/.test(el.className))) { this.fireEvent('dblClickEvent', {event:ev, node:this.getNodeByElement(el)}); if (this._dblClickTimer) { window.clearTimeout(this._dblClickTimer); this._dblClickTimer = null; } } }, this, true ); Event.on( this.getEl(), 'mouseover', function (ev) { var target = getTarget(ev); if (target) { target.className = target.className.replace(/ygtv([lt])([mp])/gi, 'ygtv$1$2h').replace(/h+/, 'h'); } } ); Event.on( this.getEl(), 'mouseout', function (ev) { var target = getTarget(ev); if (target) { target.className = target.className.replace(/ygtv([lt])([mp])h/gi,'ygtv$1$2'); } } ); Event.on( this.getEl(), 'keydown', function (ev) { var target = Event.getTarget(ev), node = this.getNodeByElement(target), newNode = node, KEY = YAHOO.util.KeyListener.KEY; switch(ev.keyCode) { case KEY.UP: do { if (newNode.previousSibling) { newNode = newNode.previousSibling; } else { newNode = newNode.parent; } } while (newNode && !newNode.focus()); if (!newNode) { node.focus(); } Event.preventDefault(ev); break; case KEY.DOWN: do { if (newNode.nextSibling) { newNode = newNode.nextSibling; } else { newNode.expand(); newNode = (newNode.children.length || null) && newNode.children[0]; } } while (newNode && !newNode.focus()); if (!newNode) { node.focus(); } Event.preventDefault(ev); break; case KEY.LEFT: do { if (newNode.parent) { newNode = newNode.parent; } else { newNode = newNode.previousSibling; } } while (newNode && !newNode.focus()); if (!newNode) { node.focus(); } Event.preventDefault(ev); break; case KEY.RIGHT: do { newNode.expand(); if (newNode.children.length) { newNode = newNode.children[0]; } else { newNode = newNode.nextSibling; } } while (newNode && !newNode.focus()); if (!newNode) { node.focus(); } Event.preventDefault(ev); break; case KEY.ENTER: if (node.href) { if (node.target) { window.open(node.href,node.target); } else { window.location(node.href); } } else { node.toggle(); } this.fireEvent('enterKeyPressed',node); Event.preventDefault(ev); break; case KEY.HOME: newNode = this.getRoot(); if (newNode.children.length) {newNode = newNode.children[0];} if (!newNode.focus()) { node.focus(); } Event.preventDefault(ev); break; case KEY.END: newNode = newNode.parent.children; newNode = newNode[newNode.length -1]; if (!newNode.focus()) { node.focus(); } Event.preventDefault(ev); break; // case KEY.PAGE_UP: // break; // case KEY.PAGE_DOWN: // break; case 107: // plus key if (ev.shiftKey) { node.parent.expandAll(); } else { node.expand(); } break; case 109: // minus key if (ev.shiftKey) { node.parent.collapseAll(); } else { node.collapse(); } break; default: break; } }, this, true ); } this._hasEvents = true; }, /** * Returns the tree's host element * @method getEl * @return {HTMLElement} the host element */ getEl: function() { if (! this._el) { this._el = Dom.get(this.id); } return this._el; }, /** * Nodes register themselves with the tree instance when they are created. * @method regNode * @param node {Node} the node to register * @private */ regNode: function(node) { this._nodes[node.index] = node; }, /** * Returns the root node of this tree * @method getRoot * @return {Node} the root node */ getRoot: function() { return this.root; }, /** * Configures this tree to dynamically load all child data * @method setDynamicLoad * @param {function} fnDataLoader the function that will be called to get the data * @param iconMode {int} configures the icon that is displayed when a dynamic * load node is expanded the first time without children. By default, the * "collapse" icon will be used. If set to 1, the leaf node icon will be * displayed. */ setDynamicLoad: function(fnDataLoader, iconMode) { this.root.setDynamicLoad(fnDataLoader, iconMode); }, /** * Expands all child nodes. Note: this conflicts with the "multiExpand" * node property. If expand all is called in a tree with nodes that * do not allow multiple siblings to be displayed, only the last sibling * will be expanded. * @method expandAll */ expandAll: function() { if (!this.locked) { this.root.expandAll(); } }, /** * Collapses all expanded child nodes in the entire tree. * @method collapseAll */ collapseAll: function() { if (!this.locked) { this.root.collapseAll(); } }, /** * Returns a node in the tree that has the specified index (this index * is created internally, so this function probably will only be used * in html generated for a given node.) * @method getNodeByIndex * @param {int} nodeIndex the index of the node wanted * @return {Node} the node with index=nodeIndex, null if no match */ getNodeByIndex: function(nodeIndex) { var n = this._nodes[nodeIndex]; return (n) ? n : null; }, /** * Returns a node that has a matching property and value in the data * object that was passed into its constructor. * @method getNodeByProperty * @param {object} property the property to search (usually a string) * @param {object} value the value we want to find (usuall an int or string) * @return {Node} the matching node, null if no match */ getNodeByProperty: function(property, value) { for (var i in this._nodes) { if (this._nodes.hasOwnProperty(i)) { var n = this._nodes[i]; if (n.data && value == n.data[property]) { return n; } } } return null; }, /** * Returns a collection of nodes that have a matching property * and value in the data object that was passed into its constructor. * @method getNodesByProperty * @param {object} property the property to search (usually a string) * @param {object} value the value we want to find (usuall an int or string) * @return {Array} the matching collection of nodes, null if no match */ getNodesByProperty: function(property, value) { var values = []; for (var i in this._nodes) { if (this._nodes.hasOwnProperty(i)) { var n = this._nodes[i]; if (n.data && value == n.data[property]) { values.push(n); } } } return (values.length) ? values : null; }, /** * Returns the treeview node reference for an anscestor element * of the node, or null if it is not contained within any node * in this tree. * @method getNodeByElement * @param {HTMLElement} the element to test * @return {YAHOO.widget.Node} a node reference or null */ getNodeByElement: function(el) { var p=el, m, re=/ygtv([^\d]*)(.*)/; do { if (p && p.id) { m = p.id.match(re); if (m && m[2]) { return this.getNodeByIndex(m[2]); } } p = p.parentNode; if (!p || !p.tagName) { break; } } while (p.id !== this.id && p.tagName.toLowerCase() !== "body"); return null; }, /** * Removes the node and its children, and optionally refreshes the * branch of the tree that was affected. * @method removeNode * @param {Node} The node to remove * @param {boolean} autoRefresh automatically refreshes branch if true * @return {boolean} False is there was a problem, true otherwise. */ removeNode: function(node, autoRefresh) { // Don't delete the root node if (node.isRoot()) { return false; } // Get the branch that we may need to refresh var p = node.parent; if (p.parent) { p = p.parent; } // Delete the node and its children this._deleteNode(node); // Refresh the parent of the parent if (autoRefresh && p && p.childrenRendered) { p.refresh(); } return true; }, /** * wait until the animation is complete before deleting * to avoid javascript errors * @method _removeChildren_animComplete * @param o the custom event payload * @private */ _removeChildren_animComplete: function(o) { this.unsubscribe(this._removeChildren_animComplete); this.removeChildren(o.node); }, /** * Deletes this nodes child collection, recursively. Also collapses * the node, and resets the dynamic load flag. The primary use for * this method is to purge a node and allow it to fetch its data * dynamically again. * @method removeChildren * @param {Node} node the node to purge */ removeChildren: function(node) { if (node.expanded) { // wait until the animation is complete before deleting to // avoid javascript errors if (this._collapseAnim) { this.subscribe("animComplete", this._removeChildren_animComplete, this, true); Widget.Node.prototype.collapse.call(node); return; } node.collapse(); } while (node.children.length) { this._deleteNode(node.children[0]); } if (node.isRoot()) { Widget.Node.prototype.expand.call(node); } node.childrenRendered = false; node.dynamicLoadComplete = false; node.updateIcon(); }, /** * Deletes the node and recurses children * @method _deleteNode * @private */ _deleteNode: function(node) { // Remove all the child nodes first this.removeChildren(node); // Remove the node from the tree this.popNode(node); }, /** * Removes the node from the tree, preserving the child collection * to make it possible to insert the branch into another part of the * tree, or another tree. * @method popNode * @param {Node} the node to remove */ popNode: function(node) { var p = node.parent; // Update the parent's collection of children var a = []; for (var i=0, len=p.children.length;i '; } var f = document.createElement("div"); var s = f.style; s.className = prefix + styles[0]; s.position = "absolute"; s.height = "1px"; s.width = "1px"; s.top = "-1000px"; s.left = "-1000px"; f.innerHTML = sb.join(""); document.body.appendChild(f); Event.removeListener(window, "load", TV.preload); }; Event.addListener(window,"load", TV.preload); })(); (function () { var Dom = YAHOO.util.Dom, Lang = YAHOO.lang, Event = YAHOO.util.Event; /** * The base class for all tree nodes. The node's presentation and behavior in * response to mouse events is handled in Node subclasses. * @namespace YAHOO.widget * @class Node * @uses YAHOO.util.EventProvider * @param oData {object} a string or object containing the data that will * be used to render this node, and any custom attributes that should be * stored with the node (which is available in noderef.data). * All values in oData will be used to set equally named properties in the node * as long as the node does have such properties, they are not undefined, private or functions. * @param oParent {Node} this node's parent node * @param expanded {boolean} the initial expanded/collapsed state (deprecated, use oData.expanded) * @constructor */ YAHOO.widget.Node = function(oData, oParent, expanded) { if (oData) { this.init(oData, oParent, expanded); } }; YAHOO.widget.Node.prototype = { /** * The index for this instance obtained from global counter in YAHOO.widget.TreeView. * @property index * @type int */ index: 0, /** * This node's child node collection. * @property children * @type Node[] */ children: null, /** * Tree instance this node is part of * @property tree * @type TreeView */ tree: null, /** * The data linked to this node. This can be any object or primitive * value, and the data can be used in getNodeHtml(). * @property data * @type object */ data: null, /** * Parent node * @property parent * @type Node */ parent: null, /** * The depth of this node. We start at -1 for the root node. * @property depth * @type int */ depth: -1, /** * The href for the node's label. If one is not specified, the href will * be set so that it toggles the node. * @property href * @type string */ href: null, /** * The label href target, defaults to current window * @property target * @type string */ target: "_self", /** * The node's expanded/collapsed state * @property expanded * @type boolean */ expanded: false, /** * Can multiple children be expanded at once? * @property multiExpand * @type boolean */ multiExpand: true, /** * Should we render children for a collapsed node? It is possible that the * implementer will want to render the hidden data... @todo verify that we * need this, and implement it if we do. * @property renderHidden * @type boolean */ renderHidden: false, /** * This flag is set to true when the html is generated for this node's * children, and set to false when new children are added. * @property childrenRendered * @type boolean */ childrenRendered: false, /** * Dynamically loaded nodes only fetch the data the first time they are * expanded. This flag is set to true once the data has been fetched. * @property dynamicLoadComplete * @type boolean */ dynamicLoadComplete: false, /** * This node's previous sibling * @property previousSibling * @type Node */ previousSibling: null, /** * This node's next sibling * @property nextSibling * @type Node */ nextSibling: null, /** * We can set the node up to call an external method to get the child * data dynamically. * @property _dynLoad * @type boolean * @private */ _dynLoad: false, /** * Function to execute when we need to get this node's child data. * @property dataLoader * @type function */ dataLoader: null, /** * This is true for dynamically loading nodes while waiting for the * callback to return. * @property isLoading * @type boolean */ isLoading: false, /** * The toggle/branch icon will not show if this is set to false. This * could be useful if the implementer wants to have the child contain * extra info about the parent, rather than an actual node. * @property hasIcon * @type boolean */ hasIcon: true, /** * Used to configure what happens when a dynamic load node is expanded * and we discover that it does not have children. By default, it is * treated as if it still could have children (plus/minus icon). Set * iconMode to have it display like a leaf node instead. * @property iconMode * @type int */ iconMode: 0, /** * Specifies whether or not the content area of the node should be allowed * to wrap. * @property nowrap * @type boolean * @default false */ nowrap: false, /** * If true, the node will alway be rendered as a leaf node. This can be * used to override the presentation when dynamically loading the entire * tree. Setting this to true also disables the dynamic load call for the * node. * @property isLeaf * @type boolean * @default false */ isLeaf: false, /** * The CSS class for the html content container. Defaults to ygtvhtml, but * can be overridden to provide a custom presentation for a specific node. * @property contentStyle * @type string */ contentStyle: "", /** * The generated id that will contain the data passed in by the implementer. * @property contentElId * @type string */ contentElId: null, /** * The node type * @property _type * @private * @type string * @default "Node" */ _type: "Node", /* spacerPath: "http://us.i1.yimg.com/us.yimg.com/i/space.gif", expandedText: "Expanded", collapsedText: "Collapsed", loadingText: "Loading", */ /** * Initializes this node, gets some of the properties from the parent * @method init * @param oData {object} a string or object containing the data that will * be used to render this node * @param oParent {Node} this node's parent node * @param expanded {boolean} the initial expanded/collapsed state */ init: function(oData, oParent, expanded) { this.data = oData; this.children = []; this.index = YAHOO.widget.TreeView.nodeCount; ++YAHOO.widget.TreeView.nodeCount; this.contentElId = "ygtvcontentel" + this.index; if (Lang.isObject(oData)) { for (var property in oData) { if (property.charAt(0) != '_' && oData.hasOwnProperty(property) && !Lang.isUndefined(this[property]) && !Lang.isFunction(this[property]) ) { this[property] = oData[property]; } } } if (!Lang.isUndefined(expanded) ) { this.expanded = expanded; } /** * The parentChange event is fired when a parent element is applied * to the node. This is useful if you need to apply tree-level * properties to a tree that need to happen if a node is moved from * one tree to another. * * @event parentChange * @type CustomEvent */ this.createEvent("parentChange", this); // oParent should never be null except when we create the root node. if (oParent) { oParent.appendChild(this); } }, /** * Certain properties for the node cannot be set until the parent * is known. This is called after the node is inserted into a tree. * the parent is also applied to this node's children in order to * make it possible to move a branch from one tree to another. * @method applyParent * @param {Node} parentNode this node's parent node * @return {boolean} true if the application was successful */ applyParent: function(parentNode) { if (!parentNode) { return false; } this.tree = parentNode.tree; this.parent = parentNode; this.depth = parentNode.depth + 1; // @todo why was this put here. This causes new nodes added at the // root level to lose the menu behavior. // if (! this.multiExpand) { // this.multiExpand = parentNode.multiExpand; // } this.tree.regNode(this); parentNode.childrenRendered = false; // cascade update existing children for (var i=0, len=this.children.length;i 0 || (checkForLazyLoad && this.isDynamic() && !this.dynamicLoadComplete) ); } }, /** * Expands if node is collapsed, collapses otherwise. * @method toggle */ toggle: function() { if (!this.tree.locked && ( this.hasChildren(true) || this.isDynamic()) ) { if (this.expanded) { this.collapse(); } else { this.expand(); } } }, /** * Returns the markup for this node and its children. * @method getHtml * @return {string} the markup for this node and its expanded children. */ getHtml: function() { this.childrenRendered = false; var sb = []; sb[sb.length] = '
'; sb[sb.length] = this.getNodeHtml(); sb[sb.length] = this.getChildrenHtml(); sb[sb.length] = '
'; return sb.join(""); }, /** * Called when first rendering the tree. We always build the div that will * contain this nodes children, but we don't render the children themselves * unless this node is expanded. * @method getChildrenHtml * @return {string} the children container div html and any expanded children * @private */ getChildrenHtml: function() { var sb = []; sb[sb.length] = '
= this.depth || depth < 0) { return null; } var p = this.parent; while (p.depth > depth) { p = p.parent; } return p; }, /** * Returns the css class for the spacer at the specified depth for * this node. If this node's ancestor at the specified depth * has a next sibling the presentation is different than if it * does not have a next sibling * @method getDepthStyle * @param {int} depth the depth of the ancestor. * @return {string} the css class for the spacer */ getDepthStyle: function(depth) { return (this.getAncestor(depth).nextSibling) ? "ygtvdepthcell" : "ygtvblankdepthcell"; }, /** * Get the markup for the node. This may be overrided so that we can * support different types of nodes. * @method getNodeHtml * @return {string} The HTML that will render this node. */ getNodeHtml: function() { var sb = []; sb[sb.length] = ''; sb[sb.length] = ''; for (var i=0;i
'; } if (this.hasIcon) { sb[sb.length] = '':''; return sb.join(""); }, /** * Returns an object which could be used to build a tree out of this node and its children. * It can be passed to the tree constructor to reproduce this node as a tree. * It will return false if the node or any descendant loads dynamically, regardless of whether it is loaded or not. * @method getNodeDefinition * @return {Object | false} definition of the tree or false if this node or any descendant is defined as dynamic */ getNodeDefinition: function() { var def = YAHOO.widget.TextNode.superclass.getNodeDefinition.call(this); if (def === false) { return false; } // Node specific properties def.label = this.label; if (this.labelStyle != 'ygtvlabel') { def.style = this.labelStyle; } if (this.title) { def.title = this.title ; } return def; }, toString: function() { return YAHOO.widget.TextNode.superclass.toString.call(this) + ": " + this.label; }, // deprecated onLabelClick: function() { return false; } }); })(); /** * A custom YAHOO.widget.Node that handles the unique nature of * the virtual, presentationless root node. * @namespace YAHOO.widget * @class RootNode * @extends YAHOO.widget.Node * @param oTree {YAHOO.widget.TreeView} The tree instance this node belongs to * @constructor */ YAHOO.widget.RootNode = function(oTree) { // Initialize the node with null params. The root node is a // special case where the node has no presentation. So we have // to alter the standard properties a bit. this.init(null, null, true); /* * For the root node, we get the tree reference from as a param * to the constructor instead of from the parent element. */ this.tree = oTree; }; YAHOO.extend(YAHOO.widget.RootNode, YAHOO.widget.Node, { /** * The node type * @property _type * @type string * @private * @default "RootNode" */ _type: "RootNode", // overrides YAHOO.widget.Node getNodeHtml: function() { return ""; }, toString: function() { return this._type; }, loadComplete: function() { this.tree.draw(); }, /** * Count of nodes in tree. * It overrides Nodes.getNodeCount because the root node should not be counted. * @method getNodeCount * @return {int} number of nodes in the tree */ getNodeCount: function() { for (var i = 0, count = 0;i< this.children.length;i++) { count += this.children[i].getNodeCount(); } return count; }, /** * Returns an object which could be used to build a tree out of this node and its children. * It can be passed to the tree constructor to reproduce this node as a tree. * Since the RootNode is automatically created by treeView, * its own definition is excluded from the returned node definition * which only contains its children. * @method getNodeDefinition * @return {Object | false} definition of the tree or false if any child node is defined as dynamic */ getNodeDefinition: function() { for (var def, defs = [], i = 0; i < this.children.length;i++) { def = this.children[i].getNodeDefinition(); if (def === false) { return false;} defs.push(def); } return defs; }, collapse: function() {}, expand: function() {}, getSiblings: function() { return null; }, focus: function () {} }); (function () { var Dom = YAHOO.util.Dom, Lang = YAHOO.lang, Event = YAHOO.util.Event; /** * This implementation takes either a string or object for the * oData argument. If is it a string, it will use it for the display * of this node (and it can contain any html code). If the parameter * is an object,it looks for a parameter called "html" that will be * used for this node's display. * @namespace YAHOO.widget * @class HTMLNode * @extends YAHOO.widget.Node * @constructor * @param oData {object} a string or object containing the data that will * be used to render this node. * Providing a string is the same as providing an object with a single property named html. * All values in the oData will be used to set equally named properties in the node * as long as the node does have such properties, they are not undefined, private or functions. * All other attributes are made available in noderef.data, which * can be used to store custom attributes. TreeView.getNode(s)ByProperty * can be used to retrieve a node by one of the attributes. * @param oParent {YAHOO.widget.Node} this node's parent node * @param expanded {boolean} the initial expanded/collapsed state (deprecated; use oData.expanded) * @param hasIcon {boolean} specifies whether or not leaf nodes should * be rendered with or without a horizontal line line and/or toggle icon. If the icon * is not displayed, the content fills the space it would have occupied. * This option operates independently of the leaf node presentation logic * for dynamic nodes. * (deprecated; use oData.hasIcon) */ YAHOO.widget.HTMLNode = function(oData, oParent, expanded, hasIcon) { if (oData) { this.init(oData, oParent, expanded); this.initContent(oData, hasIcon); } }; YAHOO.extend(YAHOO.widget.HTMLNode, YAHOO.widget.Node, { /** * The CSS class for the html content container. Defaults to ygtvhtml, but * can be overridden to provide a custom presentation for a specific node. * @property contentStyle * @type string */ contentStyle: "ygtvhtml", /** * The HTML content to use for this node's display * @property html * @type string */ html: null, /** * The node type * @property _type * @private * @type string * @default "HTMLNode" */ _type: "HTMLNode", /** * Sets up the node label * @property initContent * @param oData {object} An html string or object containing an html property * @param hasIcon {boolean} determines if the node will be rendered with an * icon or not */ initContent: function(oData, hasIcon) { this.setHtml(oData); this.contentElId = "ygtvcontentel" + this.index; if (!Lang.isUndefined(hasIcon)) { this.hasIcon = hasIcon; } }, /** * Synchronizes the node.data, node.html, and the node's content * @property setHtml * @param o {object} An html string or object containing an html property */ setHtml: function(o) { this.data = o; this.html = (typeof o === "string") ? o : o.html; var el = this.getContentEl(); if (el) { el.innerHTML = this.html; } }, // overrides YAHOO.widget.Node getContentHtml: function() { return this.html; }, /** * Returns an object which could be used to build a tree out of this node and its children. * It can be passed to the tree constructor to reproduce this node as a tree. * It will return false if any node loads dynamically, regardless of whether it is loaded or not. * @method getNodeDefinition * @return {Object | false} definition of the tree or false if any node is defined as dynamic */ getNodeDefinition: function() { var def = YAHOO.widget.HTMLNode.superclass.getNodeDefinition.call(this); if (def === false) { return false; } def.html = this.html; return def; } }); })(); /** * A menu-specific implementation that differs from TextNode in that only * one sibling can be expanded at a time. * @namespace YAHOO.widget * @class MenuNode * @extends YAHOO.widget.TextNode * @param oData {object} a string or object containing the data that will * be used to render this node. * Providing a string is the same as providing an object with a single property named label. * All values in the oData will be used to set equally named properties in the node * as long as the node does have such properties, they are not undefined, private or functions. * All attributes are made available in noderef.data, which * can be used to store custom attributes. TreeView.getNode(s)ByProperty * can be used to retrieve a node by one of the attributes. * @param oParent {YAHOO.widget.Node} this node's parent node * @param expanded {boolean} the initial expanded/collapsed state (deprecated; use oData.expanded) * @constructor */ YAHOO.widget.MenuNode = function(oData, oParent, expanded) { YAHOO.widget.MenuNode.superclass.constructor.call(this,oData,oParent,expanded); /* * Menus usually allow only one branch to be open at a time. */ this.multiExpand = false; }; YAHOO.extend(YAHOO.widget.MenuNode, YAHOO.widget.TextNode, { /** * The node type * @property _type * @private * @default "MenuNode" */ _type: "MenuNode" }); (function () { var Dom = YAHOO.util.Dom, Lang = YAHOO.lang, Event = YAHOO.util.Event, Calendar = YAHOO.widget.Calendar; /** * A Date-specific implementation that differs from TextNode in that it uses * YAHOO.widget.Calendar as an in-line editor, if available * If Calendar is not available, it behaves as a plain TextNode. * @namespace YAHOO.widget * @class DateNode * @extends YAHOO.widget.TextNode * @param oData {object} a string or object containing the data that will * be used to render this node. * Providing a string is the same as providing an object with a single property named label. * All values in the oData will be used to set equally named properties in the node * as long as the node does have such properties, they are not undefined, private nor functions. * All attributes are made available in noderef.data, which * can be used to store custom attributes. TreeView.getNode(s)ByProperty * can be used to retrieve a node by one of the attributes. * @param oParent {YAHOO.widget.Node} this node's parent node * @param expanded {boolean} the initial expanded/collapsed state (deprecated; use oData.expanded) * @constructor */ YAHOO.widget.DateNode = function(oData, oParent, expanded) { YAHOO.widget.DateNode.superclass.constructor.call(this,oData, oParent, expanded); }; YAHOO.extend(YAHOO.widget.DateNode, YAHOO.widget.TextNode, { /** * The node type * @property _type * @type string * @private * @default "DateNode" */ _type: "DateNode", /** * Configuration object for the Calendar editor, if used. * See http://developer.yahoo.com/yui/calendar/#internationalization * @property calendarConfig */ calendarConfig: null, /** * If YAHOO.widget.Calendar is available, it will pop up a Calendar to enter a new date. Otherwise, it falls back to a plain <input> textbox * @method fillEditorContainer * @param editorData {YAHOO.widget.TreeView.editorData} a shortcut to the static object holding editing information * @return void */ fillEditorContainer: function (editorData) { var cal, container = editorData.inputContainer; if (Lang.isUndefined(Calendar)) { Dom.replaceClass(editorData.editorPanel,'ygtv-edit-DateNode','ygtv-edit-TextNode'); YAHOO.widget.DateNode.superclass.fillEditorContainer.call(this, editorData); return; } if (editorData.nodeType != this._type) { editorData.nodeType = this._type; editorData.saveOnEnter = false; editorData.node.destroyEditorContents(editorData); editorData.inputObject = cal = new Calendar(container.appendChild(document.createElement('div'))); if (this.calendarConfig) { cal.cfg.applyConfig(this.calendarConfig,true); cal.cfg.fireQueue(); } cal.selectEvent.subscribe(function () { this.tree._closeEditor(true); },this,true); } else { cal = editorData.inputObject; } cal.cfg.setProperty("selected",this.label, false); var delim = cal.cfg.getProperty('DATE_FIELD_DELIMITER'); var pageDate = this.label.split(delim); cal.cfg.setProperty('pagedate',pageDate[cal.cfg.getProperty('MDY_MONTH_POSITION') -1] + delim + pageDate[cal.cfg.getProperty('MDY_YEAR_POSITION') -1]); cal.cfg.fireQueue(); cal.render(); cal.oDomContainer.focus(); }, /** * Saves the date entered in the editor into the DateNode label property and displays it. * Overrides Node.saveEditorValue * @method saveEditorValue * @param editorData {YAHOO.widget.TreeView.editorData} a shortcut to the static object holding editing information */ saveEditorValue: function (editorData) { var node = editorData.node, value; if (Lang.isUndefined(Calendar)) { value = editorData.inputElement.value; } else { var cal = editorData.inputObject, date = cal.getSelectedDates()[0], dd = []; dd[cal.cfg.getProperty('MDY_DAY_POSITION') -1] = date.getDate(); dd[cal.cfg.getProperty('MDY_MONTH_POSITION') -1] = date.getMonth() + 1; dd[cal.cfg.getProperty('MDY_YEAR_POSITION') -1] = date.getFullYear(); value = dd.join(cal.cfg.getProperty('DATE_FIELD_DELIMITER')); } node.label = value; node.data.label = value; node.getLabelEl().innerHTML = value; } }); })(); (function () { var Dom = YAHOO.util.Dom, Lang = YAHOO.lang, Event = YAHOO.util.Event, TV = YAHOO.widget.TreeView, TVproto = TV.prototype; /** * An object to store information used for in-line editing * for all Nodes of all TreeViews. It contains: *
    *
  • active {boolean}, whether there is an active cell editor
    • *
  • whoHasIt {YAHOO.widget.TreeView} TreeView instance that is currently using the editor
    • *
  • nodeType {string} value of static Node._type property, allows reuse of input element if node is of the same type.
    • *
  • editorPanel {HTMLelement (<div>)} element holding the in-line editor
    • *
  • inputContainer {HTMLelement (<div>)} element which will hold the type-specific input element(s) to be filled by the fillEditorContainer method
    • *
  • buttonsContainer {HTMLelement (<div>)} element which holds the <button> elements for Ok/Cancel. If you don't want any of the buttons, hide it via CSS styles, don't destroy it
    • *
  • node {YAHOO.widget.Node} reference to the Node being edited
    • *
  • saveOnEnter {boolean}, whether the Enter key should be accepted as a Save command (Esc. is always taken as Cancel), disable for multi-line input elements
    • *
* Editors are free to use this object to store additional data. * @property editorData * @static * @for YAHOO.widget.TreeView */ TV.editorData = { active:false, whoHasIt:null, // which TreeView has it nodeType:null, editorPanel:null, inputContainer:null, buttonsContainer:null, node:null, // which Node is being edited saveOnEnter:true // Each node type is free to add its own properties to this as it sees fit. }; /** * Entry point of the editing plug-in. * TreeView will call this method if it exists when a node label is clicked * @method _nodeEditing * @param node {YAHOO.widget.Node} the node to be edited * @return {Boolean} true to indicate that the node is editable and prevent any further bubbling of the click. * @for YAHOO.widget.TreeView */ TVproto._nodeEditing = function (node) { if (node.fillEditorContainer && node.editable) { var ed, topLeft, buttons, button, editorData = TV.editorData; editorData.active = true; editorData.whoHasIt = this; if (!editorData.nodeType) { editorData.editorPanel = ed = document.body.appendChild(document.createElement('div')); Dom.addClass(ed,'ygtv-label-editor'); buttons = editorData.buttonsContainer = ed.appendChild(document.createElement('div')); Dom.addClass(buttons,'ygtv-button-container'); button = buttons.appendChild(document.createElement('button')); Dom.addClass(button,'ygtvok'); button.innerHTML = ' '; button = buttons.appendChild(document.createElement('button')); Dom.addClass(button,'ygtvcancel'); button.innerHTML = ' '; Event.on(buttons, 'click', function (ev) { var target = Event.getTarget(ev); var node = TV.editorData.node; if (Dom.hasClass(target,'ygtvok')) { Event.stopEvent(ev); this._closeEditor(true); } if (Dom.hasClass(target,'ygtvcancel')) { Event.stopEvent(ev); this._closeEditor(false); } }, this, true); editorData.inputContainer = ed.appendChild(document.createElement('div')); Dom.addClass(editorData.inputContainer,'ygtv-input'); Event.on(ed,'keydown',function (ev) { var editorData = TV.editorData, KEY = YAHOO.util.KeyListener.KEY; switch (ev.keyCode) { case KEY.ENTER: Event.stopEvent(ev); if (editorData.saveOnEnter) { this._closeEditor(true); } break; case KEY.ESCAPE: Event.stopEvent(ev); this._closeEditor(false); break; } },this,true); } else { ed = editorData.editorPanel; } editorData.node = node; if (editorData.nodeType) { Dom.removeClass(ed,'ygtv-edit-' + editorData.nodeType); } Dom.addClass(ed,' ygtv-edit-' + node._type); topLeft = Dom.getXY(node.getContentEl()); Dom.setStyle(ed,'left',topLeft[0] + 'px'); Dom.setStyle(ed,'top',topLeft[1] + 'px'); Dom.setStyle(ed,'display','block'); ed.focus(); node.fillEditorContainer(editorData); return true; // If inline editor available, don't do anything else. } }; /** * Method to be associated with an event (clickEvent, dblClickEvent or enterKeyPressed) to pop up the contents editor * It calls the corresponding node editNode method. * @method onEventEditNode * @param oArgs {object} Object passed as arguments to TreeView event listeners * @for YAHOO.widget.TreeView */ TVproto.onEventEditNode = function (oArgs) { if (oArgs instanceof YAHOO.widget.Node) { oArgs.editNode(); } else if (oArgs.node instanceof YAHOO.widget.Node) { oArgs.node.editNode(); } }; /** * Method to be called when the inline editing is finished and the editor is to be closed * @method _closeEditor * @param save {Boolean} true if the edited value is to be saved, false if discarded * @private * @for YAHOO.widget.TreeView */ TVproto._closeEditor = function (save) { var ed = TV.editorData, node = ed.node; if (save) { ed.node.saveEditorValue(ed); } Dom.setStyle(ed.editorPanel,'display','none'); ed.active = false; node.focus(); }; /** * Entry point for TreeView's destroy method to destroy whatever the editing plug-in has created * @method _destroyEditor * @private * @for YAHOO.widget.TreeView */ TVproto._destroyEditor = function() { var ed = TV.editorData; if (ed && ed.nodeType && (!ed.active || ed.whoHasIt === this)) { Event.removeListener(ed.editorPanel,'keydown'); Event.removeListener(ed.buttonContainer,'click'); ed.node.destroyEditorContents(ed); document.body.removeChild(ed.editorPanel); ed.nodeType = ed.editorPanel = ed.inputContainer = ed.buttonsContainer = ed.whoHasIt = ed.node = null; ed.active = false; } }; var Nproto = YAHOO.widget.Node.prototype; /** * Signals if the label is editable. (Ignored on TextNodes with href set.) * @property editable * @type boolean * @for YAHOO.widget.Node */ Nproto.editable = false; /** * pops up the contents editor, if there is one and the node is declared editable * @method editNode * @for YAHOO.widget.Node */ Nproto.editNode = function () { this.tree._nodeEditing(this); }; /** Placeholder for a function that should provide the inline node label editor. * Leaving it set to null will indicate that this node type is not editable. * It should be overridden by nodes that provide inline editing. * The Node-specific editing element (input box, textarea or whatever) should be inserted into editorData.inputContainer. * @method fillEditorContainer * @param editorData {YAHOO.widget.TreeView.editorData} a shortcut to the static object holding editing information * @return void * @for YAHOO.widget.Node */ Nproto.fillEditorContainer = null; /** * Node-specific destroy function to empty the contents of the inline editor panel * This function is the worst case alternative that will purge all possible events and remove the editor contents * Method Event.purgeElement is somewhat costly so if it can be replaced by specifc Event.removeListeners, it is better to do so. * @method destroyEditorContents * @param editorData {YAHOO.widget.TreeView.editorData} a shortcut to the static object holding editing information * @for YAHOO.widget.Node */ Nproto.destroyEditorContents = function (editorData) { // In the worst case, if the input editor (such as the Calendar) has no destroy method // we can only try to remove all possible events on it. Event.purgeElement(editorData.inputContainer,true); editorData.inputContainer.innerHTML = ''; }; /** * Saves the value entered into the editor. * Should be overridden by each node type * @method saveEditorValue * @param editorData {YAHOO.widget.TreeView.editorData} a shortcut to the static object holding editing information * @for YAHOO.widget.Node */ Nproto.saveEditorValue = function (editorData) { }; var TNproto = YAHOO.widget.TextNode.prototype; /** * Places an <input> textbox in the input container and loads the label text into it * @method fillEditorContainer * @param editorData {YAHOO.widget.TreeView.editorData} a shortcut to the static object holding editing information * @return void * @for YAHOO.widget.TextNode */ TNproto.fillEditorContainer = function (editorData) { var input; // If last node edited is not of the same type as this one, delete it and fill it with our editor if (editorData.nodeType != this._type) { editorData.nodeType = this._type; editorData.saveOnEnter = true; editorData.node.destroyEditorContents(editorData); editorData.inputElement = input = editorData.inputContainer.appendChild(document.createElement('input')); } else { // if the last node edited was of the same time, reuse the input element. input = editorData.inputElement; } input.value = this.label; input.focus(); input.select(); }; /** * Saves the value entered in the editor into the TextNode label property and displays it * Overrides Node.saveEditorValue * @method saveEditorValue * @param editorData {YAHOO.widget.TreeView.editorData} a shortcut to the static object holding editing information * @for YAHOO.widget.TextNode */ TNproto.saveEditorValue = function (editorData) { var node = editorData.node, value = editorData.inputElement.value; node.label = value; node.data.label = value; node.getLabelEl().innerHTML = value; }; /** * Destroys the contents of the inline editor panel * Overrides Node.destroyEditorContent * Since we didn't set any event listeners on this inline editor, it is more efficient to avoid the generic method in Node * @method destroyEditorContents * @param editorData {YAHOO.widget.TreeView.editorData} a shortcut to the static object holding editing information * @for YAHOO.widget.TextNode */ TNproto.destroyEditorContents = function (editorData) { editorData.inputContainer.innerHTML = ''; }; })(); /** * A static factory class for tree view expand/collapse animations * @class TVAnim * @static */ YAHOO.widget.TVAnim = function() { return { /** * Constant for the fade in animation * @property FADE_IN * @type string * @static */ FADE_IN: "TVFadeIn", /** * Constant for the fade out animation * @property FADE_OUT * @type string * @static */ FADE_OUT: "TVFadeOut", /** * Returns a ygAnim instance of the given type * @method getAnim * @param type {string} the type of animation * @param el {HTMLElement} the element to element (probably the children div) * @param callback {function} function to invoke when the animation is done. * @return {YAHOO.util.Animation} the animation instance * @static */ getAnim: function(type, el, callback) { if (YAHOO.widget[type]) { return new YAHOO.widget[type](el, callback); } else { return null; } }, /** * Returns true if the specified animation class is available * @method isValid * @param type {string} the type of animation * @return {boolean} true if valid, false if not * @static */ isValid: function(type) { return (YAHOO.widget[type]); } }; } (); /** * A 1/2 second fade-in animation. * @class TVFadeIn * @constructor * @param el {HTMLElement} the element to animate * @param callback {function} function to invoke when the animation is finished */ YAHOO.widget.TVFadeIn = function(el, callback) { /** * The element to animate * @property el * @type HTMLElement */ this.el = el; /** * the callback to invoke when the animation is complete * @property callback * @type function */ this.callback = callback; }; YAHOO.widget.TVFadeIn.prototype = { /** * Performs the animation * @method animate */ animate: function() { var tvanim = this; var s = this.el.style; s.opacity = 0.1; s.filter = "alpha(opacity=10)"; s.display = ""; var dur = 0.4; var a = new YAHOO.util.Anim(this.el, {opacity: {from: 0.1, to: 1, unit:""}}, dur); a.onComplete.subscribe( function() { tvanim.onComplete(); } ); a.animate(); }, /** * Clean up and invoke callback * @method onComplete */ onComplete: function() { this.callback(); }, /** * toString * @method toString * @return {string} the string representation of the instance */ toString: function() { return "TVFadeIn"; } }; /** * A 1/2 second fade out animation. * @class TVFadeOut * @constructor * @param el {HTMLElement} the element to animate * @param callback {Function} function to invoke when the animation is finished */ YAHOO.widget.TVFadeOut = function(el, callback) { /** * The element to animate * @property el * @type HTMLElement */ this.el = el; /** * the callback to invoke when the animation is complete * @property callback * @type function */ this.callback = callback; }; YAHOO.widget.TVFadeOut.prototype = { /** * Performs the animation * @method animate */ animate: function() { var tvanim = this; var dur = 0.4; var a = new YAHOO.util.Anim(this.el, {opacity: {from: 1, to: 0.1, unit:""}}, dur); a.onComplete.subscribe( function() { tvanim.onComplete(); } ); a.animate(); }, /** * Clean up and invoke callback * @method onComplete */ onComplete: function() { var s = this.el.style; s.display = "none"; // s.opacity = 1; s.filter = "alpha(opacity=100)"; this.callback(); }, /** * toString * @method toString * @return {string} the string representation of the instance */ toString: function() { return "TVFadeOut"; } }; YAHOO.register("treeview", YAHOO.widget.TreeView, {version: "2.6.0", build: "1321"});