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/*
Copyright (c) 2010, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.com/yui/license.html
version: 2.8.2r1
*/
(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, dom, event
* @optional animation, json, calendar
* @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) If present, it will be used to build the tree via method <a href="#method_buildTreeFromObject">buildTreeFromObject</a>
*
*/
YAHOO.widget.TreeView = function(id, oConfig) {
if (id) { this.init(id); }
if (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,
/**
* A reference to the Node currently having the focus or null if none.
* @property currentFocus
* @type YAHOO.widget.Node
*/
currentFocus: null,
/**
* If true, only one Node can be highlighted at a time
* @property singleNodeHighlight
* @type boolean
* @default false
*/
singleNodeHighlight: false,
/**
* A reference to the Node that is currently highlighted.
* It is only meaningful if singleNodeHighlight is enabled
* @property _currentlyHighlighted
* @type YAHOO.widget.Node
* @default null
* @private
*/
_currentlyHighlighted: 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} 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} oArgs.node the node that is expanding/collapsing
* @param {String} oArgs.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} oArgs.node the node that is expanding/collapsing
* @param {String} oArgs.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 focus receives the focus, when it changes from a Node
* to another Node or when it is completely lost (blurred)
* @event focusChanged
* @type CustomEvent
* @param oArgs.oldNode {YAHOO.widget.Node} Node that had the focus or null if none
* @param oArgs.newNode {YAHOO.widget.Node} Node that receives the focus or null if none
*/
this.createEvent('focusChanged',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);
/**
* Custom event fired when the highlight of a node changes.
* The node that triggered the change is provided as an argument:
* The status of the highlight can be checked in
* <a href="YAHOO.widget.Node.html#property_highlightState">nodeRef.highlightState</a>.
* Depending on <a href="YAHOO.widget.Node.html#property_propagateHighlight">nodeRef.propagateHighlight</a>, other nodes might have changed
* @event highlightEvent
* @type CustomEvent
* @param node {YAHOO.widget.Node} the node that started the change in highlighting state
*/
this.createEvent("highlightEvent",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;
if (this._initEditor) {
this._initEditor();
}
// 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.
* A tree can be described by an array of objects, each object corresponding to a node.
* Node descriptions may contain values for any property of a node plus the following extra properties: <ul>
* <li>type: can be one of the following:<ul>
* <li> A shortname for a node type (<code>'text','menu','html'</code>) </li>
* <li>The name of a Node class under YAHOO.widget (<code>'TextNode', 'MenuNode', 'DateNode'</code>, etc) </li>
* <li>a reference to an actual class: <code>YAHOO.widget.DateNode</code></li>
* </ul></li>
* <li>children: an array containing further node definitions</li></ul>
* A string instead of an object will produce a node of type 'text' with the given string as its label.
* @method buildTreeFromObject
* @param oConfig {Array|Object|String} array containing a full description of the tree.
* An object or a string will be turned into an array with the given object or string as its only element.
*
*/
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 (Lang.isString(type) && 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:
if (Lang.isString(type)) {
NodeType = Widget[type];
} else {
NodeType = 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 {
}
}
};
if (!Lang.isArray(oConfig)) {
oConfig = [oConfig];
}
build(this.root,oConfig);
},
/**
* Builds the TreeView from existing markup. Markup should consist of &lt;UL&gt; or &lt;OL&gt; elements containing &lt;LI&gt; elements.
* Each &lt;LI&gt; can have one element used as label and a second optional element which is to be a &lt;UL&gt; or &lt;OL&gt;
* containing nested nodes.
* Depending on what the first element of the &lt;LI&gt; element is, the following Nodes will be created: <ul>
* <li>plain text: a regular TextNode</li>
* <li>anchor &lt;A&gt;: a TextNode with its <code>href</code> and <code>target</code> taken from the anchor</li>
* <li>anything else: an HTMLNode</li></ul>
* Only the first outermost (un-)ordered list in the markup and its children will be parsed.
* Nodes will be collapsed unless an &lt;LI&gt; tag has a className called 'expanded'.
* All other className attributes will be copied over to the Node className property.
* If the &lt;LI&gt; element contains an attribute called <code>yuiConfig</code>, its contents should be a JSON-encoded object
* as the one used in method <a href="#method_buildTreeFromObject">buildTreeFromObject</a>.
* @method buildTreeFromMarkup
* @param id {string|HTMLElement} The id of the element that contains the markup or a reference to it.
*/
buildTreeFromMarkup: function (id) {
var build = function (markup) {
var el, child, branch = [], config = {}, label, yuiConfig;
// Dom's getFirstChild and getNextSibling skip over text elements
for (el = Dom.getFirstChild(markup); el; el = Dom.getNextSibling(el)) {
switch (el.tagName.toUpperCase()) {
case 'LI':
label = '';
config = {
expanded: Dom.hasClass(el,'expanded'),
title: el.title || el.alt || null,
className: Lang.trim(el.className.replace(/\bexpanded\b/,'')) || null
};
// I cannot skip over text elements here because I want them for labels
child = el.firstChild;
if (child.nodeType == 3) {
// nodes with only whitespace, tabs and new lines don't count, they are probably just formatting.
label = Lang.trim(child.nodeValue.replace(/[\n\t\r]*/g,''));
if (label) {
config.type = 'text';
config.label = label;
} else {
child = Dom.getNextSibling(child);
}
}
if (!label) {
if (child.tagName.toUpperCase() == 'A') {
config.type = 'text';
config.label = child.innerHTML;
config.href = child.href;
config.target = child.target;
config.title = child.title || child.alt || config.title;
} else {
config.type = 'html';
var d = document.createElement('div');
d.appendChild(child.cloneNode(true));
config.html = d.innerHTML;
config.hasIcon = true;
}
}
// see if after the label it has a further list which will become children of this node.
child = Dom.getNextSibling(child);
switch (child && child.tagName.toUpperCase()) {
case 'UL':
case 'OL':
config.children = build(child);
break;
}
// if there are further elements or text, it will be ignored.
if (YAHOO.lang.JSON) {
yuiConfig = el.getAttribute('yuiConfig');
if (yuiConfig) {
yuiConfig = YAHOO.lang.JSON.parse(yuiConfig);
config = YAHOO.lang.merge(config,yuiConfig);
}
}
branch.push(config);
break;
case 'UL':
case 'OL':
config = {
type: 'text',
label: '',
children: build(child)
};
branch.push(config);
break;
}
}
return branch;
};
var markup = Dom.getChildrenBy(Dom.get(id),function (el) {
var tag = el.tagName.toUpperCase();
return tag == 'UL' || tag == 'OL';
});
if (markup.length) {
this.buildTreeFromObject(build(markup[0]));
} else {
}
},
/**
* Returns the TD element where the event has occurred
* @method _getEventTargetTdEl
* @private
*/
_getEventTargetTdEl: function (ev) {
var target = Event.getTarget(ev);
// go up looking for a TD with a className with a ygtv prefix
while (target && !(target.tagName.toUpperCase() == 'TD' && Dom.hasClass(target.parentNode,'ygtvrow'))) {
target = Dom.getAncestorByTagName(target,'td');
}
if (Lang.isNull(target)) { return null; }
// If it is a spacer cell, do nothing
if (/\bygtv(blank)?depthcell/.test(target.className)) { return null;}
// If it has an id, search for the node number and see if it belongs to a node in this tree.
if (target.id) {
var m = target.id.match(/\bygtv([^\d]*)(.*)/);
if (m && m[2] && this._nodes[m[2]]) {
return target;
}
}
return null;
},
/**
* Event listener for click events
* @method _onClickEvent
* @private
*/
_onClickEvent: function (ev) {
var self = this,
td = this._getEventTargetTdEl(ev),
node,
target,
toggle = function (force) {
node.focus();
if (force || !node.href) {
node.toggle();
try {
Event.preventDefault(ev);
} catch (e) {
// @TODO
// For some reason IE8 is providing an event object with
// most of the fields missing, but only when clicking on
// the node's label, and only when working with inline
// editing. This generates a "Member not found" error
// in that browser. Determine if this is a browser
// bug, or a problem with this code. Already checked to
// see if the problem has to do with access the event
// in the outer scope, and that isn't the problem.
// Maybe the markup for inline editing is broken.
}
}
};
if (!td) {
return;
}
node = this.getNodeByElement(td);
if (!node) {
return;
}
// exception to handle deprecated event labelClick
// @TODO take another look at this deprecation. It is common for people to
// only be interested in the label click, so why make them have to test
// the node type to figure out whether the click was on the label?
target = Event.getTarget(ev);
if (Dom.hasClass(target, node.labelStyle) || Dom.getAncestorByClassName(target,node.labelStyle)) {
this.fireEvent('labelClick',node);
}
// If it is a toggle cell, toggle
if (/\bygtv[tl][mp]h?h?/.test(td.className)) {
toggle(true);
} 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();
}
}
}
}
},
/**
* Event listener for double-click events
* @method _onDblClickEvent
* @private
*/
_onDblClickEvent: function (ev) {
if (!this._hasDblClickSubscriber) { return; }
var td = this._getEventTargetTdEl(ev);
if (!td) {return;}
if (!(/\bygtv[tl][mp]h?h?/.test(td.className))) {
this.fireEvent('dblClickEvent', {event:ev, node:this.getNodeByElement(td)});
if (this._dblClickTimer) {
window.clearTimeout(this._dblClickTimer);
this._dblClickTimer = null;
}
}
},
/**
* Event listener for mouse over events
* @method _onMouseOverEvent
* @private
*/
_onMouseOverEvent:function (ev) {
var target;
if ((target = this._getEventTargetTdEl(ev)) && (target = this.getNodeByElement(target)) && (target = target.getToggleEl())) {
target.className = target.className.replace(/\bygtv([lt])([mp])\b/gi,'ygtv$1$2h');
}
},
/**
* Event listener for mouse out events
* @method _onMouseOutEvent
* @private
*/
_onMouseOutEvent: function (ev) {
var target;
if ((target = this._getEventTargetTdEl(ev)) && (target = this.getNodeByElement(target)) && (target = target.getToggleEl())) {
target.className = target.className.replace(/\bygtv([lt])([mp])h\b/gi,'ygtv$1$2');
}
},
/**
* Event listener for key down events
* @method _onKeyDownEvent
* @private
*/
_onKeyDownEvent: 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._canHaveFocus());
if (newNode) { newNode.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._canHaveFocus);
if (newNode) { newNode.focus();}
Event.preventDefault(ev);
break;
case KEY.LEFT:
do {
if (newNode.parent) {
newNode = newNode.parent;
} else {
newNode = newNode.previousSibling;
}
} while (newNode && !newNode._canHaveFocus());
if (newNode) { newNode.focus();}
Event.preventDefault(ev);
break;
case KEY.RIGHT:
var self = this,
moveFocusRight,
focusOnExpand = function (newNode) {
self.unsubscribe('expandComplete',focusOnExpand);
moveFocusRight(newNode);
};
moveFocusRight = function (newNode) {
do {
if (newNode.isDynamic() && !newNode.childrenRendered) {
self.subscribe('expandComplete',focusOnExpand);
newNode.expand();
newNode = null;
break;
} else {
newNode.expand();
if (newNode.children.length) {
newNode = newNode.children[0];
} else {
newNode = newNode.nextSibling;
}
}
} while (newNode && !newNode._canHaveFocus());
if (newNode) { newNode.focus();}
};
moveFocusRight(newNode);
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._canHaveFocus()) { newNode.focus(); }
Event.preventDefault(ev);
break;
case KEY.END:
newNode = newNode.parent.children;
newNode = newNode[newNode.length -1];
if (newNode._canHaveFocus()) { newNode.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;
}
},
/**
* Renders the tree boilerplate and visible nodes
* @method render
*/
render: function() {
var html = this.root.getHtml(),
el = this.getEl();
el.innerHTML = html;
if (!this._hasEvents) {
Event.on(el, 'click', this._onClickEvent, this, true);
Event.on(el, 'dblclick', this._onDblClickEvent, this, true);
Event.on(el, 'mouseover', this._onMouseOverEvent, this, true);
Event.on(el, 'mouseout', this._onMouseOutEvent, this, true);
Event.on(el, 'keydown', this._onKeyDownEvent, 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 ((property in n && n[property] == value) || (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 ((property in n && n[property] == value) || (n.data && value == n.data[property])) {
values.push(n);
}
}
}
return (values.length) ? values : null;
},
/**
* Returns a collection of nodes that have passed the test function
* passed as its only argument.
* The function will receive a reference to each node to be tested.
* @method getNodesBy
* @param {function} a boolean function that receives a Node instance and returns true to add the node to the results list
* @return {Array} the matching collection of nodes, null if no match
*/
getNodesBy: function(fn) {
var values = [];
for (var i in this._nodes) {
if (this._nodes.hasOwnProperty(i)) {
var n = this._nodes[i];
if (fn(n)) {
values.push(n);
}
}
}
return (values.length) ? values : null;
},
/**
* Returns the treeview node reference for an ancestor element
* of the node, or null if it is not contained within any node
* in this tree.
* @method getNodeByElement
* @param el {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;
},
/**
* When in singleNodeHighlight it returns the node highlighted
* or null if none. Returns null if singleNodeHighlight is false.
* @method getHighlightedNode
* @return {YAHOO.widget.Node} a node reference or null
*/
getHighlightedNode: function() {
return this._currentlyHighlighted;
},
/**
* Removes the node and its children, and optionally refreshes the
* branch of the tree that was affected.
* @method removeNode
* @param {Node} 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} 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<len;++i) {
if (p.children[i] != node) {
a[a.length] = p.children[i];
}
}
p.children = a;
// reset the childrenRendered flag for the parent
p.childrenRendered = false;
// Update the sibling relationship
if (node.previousSibling) {
node.previousSibling.nextSibling = node.nextSibling;
}
if (node.nextSibling) {
node.nextSibling.previousSibling = node.previousSibling;
}
if (this.currentFocus == node) {
this.currentFocus = null;
}
if (this._currentlyHighlighted == node) {
this._currentlyHighlighted = null;
}
node.parent = null;
node.previousSibling = null;
node.nextSibling = null;
node.tree = null;
// Update the tree's node collection
delete this._nodes[node.index];
},
/**
* Nulls out the entire TreeView instance and related objects, removes attached
* event listeners, and clears out DOM elements inside the container. After
* calling this method, the instance reference should be expliclitly nulled by
* implementer, as in myDataTable = null. Use with caution!
*
* @method destroy
*/
destroy : function() {
// Since the label editor can be separated from the main TreeView control
// the destroy method for it might not be there.
if (this._destroyEditor) { this._destroyEditor(); }
var el = this.getEl();
Event.removeListener(el,'click');
Event.removeListener(el,'dblclick');
Event.removeListener(el,'mouseover');
Event.removeListener(el,'mouseout');
Event.removeListener(el,'keydown');
for (var i = 0 ; i < this._nodes.length; i++) {
var node = this._nodes[i];
if (node && node.destroy) {node.destroy(); }
}
el.innerHTML = '';
this._hasEvents = false;
},
/**
* TreeView instance toString
* @method toString
* @return {string} string representation of the tree
*/
toString: function() {
return "TreeView " + this.id;
},
/**
* Count of nodes in tree
* @method getNodeCount
* @return {int} number of nodes in the tree
*/
getNodeCount: function() {
return this.getRoot().getNodeCount();
},
/**
* Returns an object which could be used to rebuild the tree.
* It can be passed to the tree constructor to reproduce the same tree.
* It will return false if any node loads dynamically, regardless of whether it is loaded or not.
* @method getTreeDefinition
* @return {Object | false} definition of the tree or false if any node is defined as dynamic
*/
getTreeDefinition: function() {
return this.getRoot().getNodeDefinition();
},
/**
* Abstract method that is executed when a node is expanded
* @method onExpand
* @param node {Node} the node that was expanded
* @deprecated use treeobj.subscribe("expand") instead
*/
onExpand: function(node) { },
/**
* Abstract method that is executed when a node is collapsed.
* @method onCollapse
* @param node {Node} the node that was collapsed.
* @deprecated use treeobj.subscribe("collapse") instead
*/
onCollapse: function(node) { },
/**
* Sets the value of a property for all loaded nodes in the tree.
* @method setNodesProperty
* @param name {string} Name of the property to be set
* @param value {any} value to be set
* @param refresh {boolean} if present and true, it does a refresh
*/
setNodesProperty: function(name, value, refresh) {
this.root.setNodesProperty(name,value);
if (refresh) {
this.root.refresh();
}
},
/**
* Event listener to toggle node highlight.
* Can be assigned as listener to clickEvent, dblClickEvent and enterKeyPressed.
* It returns false to prevent the default action.
* @method onEventToggleHighlight
* @param oArgs {any} it takes the arguments of any of the events mentioned above
* @return {false} Always cancels the default action for the event
*/
onEventToggleHighlight: function (oArgs) {
var node;
if ('node' in oArgs && oArgs.node instanceof Widget.Node) {
node = oArgs.node;
} else if (oArgs instanceof Widget.Node) {
node = oArgs;
} else {
return false;
}
node.toggleHighlight();
return false;
}
};
/* Backwards compatibility aliases */
var PROT = TV.prototype;
/**
* Renders the tree boilerplate and visible nodes.
* Alias for render
* @method draw
* @deprecated Use render instead
*/
PROT.draw = PROT.render;
/* end backwards compatibility aliases */
YAHOO.augment(TV, YAHOO.util.EventProvider);
/**
* Running count of all nodes created in all trees. This is
* used to provide unique identifies for all nodes. Deleting
* nodes does not change the nodeCount.
* @property YAHOO.widget.TreeView.nodeCount
* @type int
* @static
*/
TV.nodeCount = 0;
/**
* Global cache of tree instances
* @property YAHOO.widget.TreeView.trees
* @type Array
* @static
* @private
*/
TV.trees = [];
/**
* Global method for getting a tree by its id. Used in the generated
* tree html.
* @method YAHOO.widget.TreeView.getTree
* @param treeId {String} the id of the tree instance
* @return {TreeView} the tree instance requested, null if not found.
* @static
*/
TV.getTree = function(treeId) {
var t = TV.trees[treeId];
return (t) ? t : null;
};
/**
* Global method for getting a node by its id. Used in the generated
* tree html.
* @method YAHOO.widget.TreeView.getNode
* @param treeId {String} the id of the tree instance
* @param nodeIndex {String} the index of the node to return
* @return {Node} the node instance requested, null if not found
* @static
*/
TV.getNode = function(treeId, nodeIndex) {
var t = TV.getTree(treeId);
return (t) ? t.getNodeByIndex(nodeIndex) : null;
};
/**
* Class name assigned to elements that have the focus
*
* @property TreeView.FOCUS_CLASS_NAME
* @type String
* @static
* @final
* @default "ygtvfocus"
*/
TV.FOCUS_CLASS_NAME = 'ygtvfocus';
})();
(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,
* the rest of the values will be stored in noderef.data
* @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 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,
/**
* Enables node highlighting. If true, the node can be highlighted and/or propagate highlighting
* @property enableHighlight
* @type boolean
* @default true
*/
enableHighlight: true,
/**
* Stores the highlight state. Can be any of:
* <ul>
* <li>0 - not highlighted</li>
* <li>1 - highlighted</li>
* <li>2 - some children highlighted</li>
* </ul>
* @property highlightState
* @type integer
* @default 0
*/
highlightState: 0,
/**
* Tells whether highlighting will be propagated up to the parents of the clicked node
* @property propagateHighlightUp
* @type boolean
* @default false
*/
propagateHighlightUp: false,
/**
* Tells whether highlighting will be propagated down to the children of the clicked node
* @property propagateHighlightDown
* @type boolean
* @default false
*/
propagateHighlightDown: false,
/**
* User-defined className to be added to the Node
* @property className
* @type string
* @default null
*/
className: null,
/**
* The node type
* @property _type
* @private
* @type string
* @default "Node"
*/
_type: "Node",
/*
spacerPath: "http://l.yimg.com/a/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 = {};
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 (oData.hasOwnProperty(property)) {
if (property.charAt(0) != '_' && !Lang.isUndefined(this[property]) && !Lang.isFunction(this[property]) ) {
this[property] = oData[property];
} else {
this.data[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<len;++i) {
this.children[i].applyParent(this);
}
this.fireEvent("parentChange");
return true;
},
/**
* Appends a node to the child collection.
* @method appendChild
* @param childNode {Node} the new node
* @return {Node} the child node
* @private
*/
appendChild: function(childNode) {
if (this.hasChildren()) {
var sib = this.children[this.children.length - 1];
sib.nextSibling = childNode;
childNode.previousSibling = sib;
}
this.children[this.children.length] = childNode;
childNode.applyParent(this);
// part of the IE display issue workaround. If child nodes
// are added after the initial render, and the node was
// instantiated with expanded = true, we need to show the
// children div now that the node has a child.
if (this.childrenRendered && this.expanded) {
this.getChildrenEl().style.display = "";
}
return childNode;
},
/**
* Appends this node to the supplied node's child collection
* @method appendTo
* @param parentNode {Node} the node to append to.
* @return {Node} The appended node
*/
appendTo: function(parentNode) {
return parentNode.appendChild(this);
},
/**
* Inserts this node before this supplied node
* @method insertBefore
* @param node {Node} the node to insert this node before
* @return {Node} the inserted node
*/
insertBefore: function(node) {
var p = node.parent;
if (p) {
if (this.tree) {
this.tree.popNode(this);
}
var refIndex = node.isChildOf(p);
p.children.splice(refIndex, 0, this);
if (node.previousSibling) {
node.previousSibling.nextSibling = this;
}
this.previousSibling = node.previousSibling;
this.nextSibling = node;
node.previousSibling = this;
this.applyParent(p);
}
return this;
},
/**
* Inserts this node after the supplied node
* @method insertAfter
* @param node {Node} the node to insert after
* @return {Node} the inserted node
*/
insertAfter: function(node) {
var p = node.parent;
if (p) {
if (this.tree) {
this.tree.popNode(this);
}
var refIndex = node.isChildOf(p);
if (!node.nextSibling) {
this.nextSibling = null;
return this.appendTo(p);
}
p.children.splice(refIndex + 1, 0, this);
node.nextSibling.previousSibling = this;
this.previousSibling = node;
this.nextSibling = node.nextSibling;
node.nextSibling = this;
this.applyParent(p);
}
return this;
},
/**
* Returns true if the Node is a child of supplied Node
* @method isChildOf
* @param parentNode {Node} the Node to check
* @return {boolean} The node index if this Node is a child of
* supplied Node, else -1.
* @private
*/
isChildOf: function(parentNode) {
if (parentNode && parentNode.children) {
for (var i=0, len=parentNode.children.length; i<len ; ++i) {
if (parentNode.children[i] === this) {
return i;
}
}
}
return -1;
},
/**
* Returns a node array of this node's siblings, null if none.
* @method getSiblings
* @return Node[]
*/
getSiblings: function() {
var sib = this.parent.children.slice(0);
for (var i=0;i < sib.length && sib[i] != this;i++) {}
sib.splice(i,1);
if (sib.length) { return sib; }
return null;
},
/**
* Shows this node's children
* @method showChildren
*/
showChildren: function() {
if (!this.tree.animateExpand(this.getChildrenEl(), this)) {
if (this.hasChildren()) {
this.getChildrenEl().style.display = "";
}
}
},
/**
* Hides this node's children
* @method hideChildren
*/
hideChildren: function() {
if (!this.tree.animateCollapse(this.getChildrenEl(), this)) {
this.getChildrenEl().style.display = "none";
}
},
/**
* Returns the id for this node's container div
* @method getElId
* @return {string} the element id
*/
getElId: function() {
return "ygtv" + this.index;
},
/**
* Returns the id for this node's children div
* @method getChildrenElId
* @return {string} the element id for this node's children div
*/
getChildrenElId: function() {
return "ygtvc" + this.index;
},
/**
* Returns the id for this node's toggle element
* @method getToggleElId
* @return {string} the toggel element id
*/
getToggleElId: function() {
return "ygtvt" + this.index;
},
/*
* Returns the id for this node's spacer image. The spacer is positioned
* over the toggle and provides feedback for screen readers.
* @method getSpacerId
* @return {string} the id for the spacer image
*/
/*
getSpacerId: function() {
return "ygtvspacer" + this.index;
},
*/
/**
* Returns this node's container html element
* @method getEl
* @return {HTMLElement} the container html element
*/
getEl: function() {
return Dom.get(this.getElId());
},
/**
* Returns the div that was generated for this node's children
* @method getChildrenEl
* @return {HTMLElement} this node's children div
*/
getChildrenEl: function() {
return Dom.get(this.getChildrenElId());
},
/**
* Returns the element that is being used for this node's toggle.
* @method getToggleEl
* @return {HTMLElement} this node's toggle html element
*/
getToggleEl: function() {
return Dom.get(this.getToggleElId());
},
/**
* Returns the outer html element for this node's content
* @method getContentEl
* @return {HTMLElement} the element
*/
getContentEl: function() {
return Dom.get(this.contentElId);
},
/*
* Returns the element that is being used for this node's spacer.
* @method getSpacer
* @return {HTMLElement} this node's spacer html element
*/
/*
getSpacer: function() {
return document.getElementById( this.getSpacerId() ) || {};
},
*/
/*
getStateText: function() {
if (this.isLoading) {
return this.loadingText;
} else if (this.hasChildren(true)) {
if (this.expanded) {
return this.expandedText;
} else {
return this.collapsedText;
}
} else {
return "";
}
},
*/
/**
* Hides this nodes children (creating them if necessary), changes the toggle style.
* @method collapse
*/
collapse: function() {
// Only collapse if currently expanded
if (!this.expanded) { return; }
// fire the collapse event handler
var ret = this.tree.onCollapse(this);
if (false === ret) {
return;
}
ret = this.tree.fireEvent("collapse", this);
if (false === ret) {
return;
}
if (!this.getEl()) {
this.expanded = false;
} else {
// hide the child div
this.hideChildren();
this.expanded = false;
this.updateIcon();
}
// this.getSpacer().title = this.getStateText();
ret = this.tree.fireEvent("collapseComplete", this);
},
/**
* Shows this nodes children (creating them if necessary), changes the
* toggle style, and collapses its siblings if multiExpand is not set.
* @method expand
*/
expand: function(lazySource) {
// Only expand if currently collapsed.
if (this.isLoading || (this.expanded && !lazySource)) {
return;
}
var ret = true;
// When returning from the lazy load handler, expand is called again
// in order to render the new children. The "expand" event already
// fired before fething the new data, so we need to skip it now.
if (!lazySource) {
// fire the expand event handler
ret = this.tree.onExpand(this);
if (false === ret) {
return;
}
ret = this.tree.fireEvent("expand", this);
}
if (false === ret) {
return;
}
if (!this.getEl()) {
this.expanded = true;
return;
}
if (!this.childrenRendered) {
this.getChildrenEl().innerHTML = this.renderChildren();
} else {
}
this.expanded = true;
this.updateIcon();
// this.getSpacer().title = this.getStateText();
// We do an extra check for children here because the lazy
// load feature can expose nodes that have no children.
// if (!this.hasChildren()) {
if (this.isLoading) {
this.expanded = false;
return;
}
if (! this.multiExpand) {
var sibs = this.getSiblings();
for (var i=0; sibs && i<sibs.length; ++i) {
if (sibs[i] != this && sibs[i].expanded) {
sibs[i].collapse();
}
}
}
this.showChildren();
ret = this.tree.fireEvent("expandComplete", this);
},
updateIcon: function() {
if (this.hasIcon) {
var el = this.getToggleEl();
if (el) {
el.className = el.className.replace(/\bygtv(([tl][pmn]h?)|(loading))\b/gi,this.getStyle());
}
}
},
/**
* Returns the css style name for the toggle
* @method getStyle
* @return {string} the css class for this node's toggle
*/
getStyle: function() {
if (this.isLoading) {
return "ygtvloading";
} else {
// location top or bottom, middle nodes also get the top style
var loc = (this.nextSibling) ? "t" : "l";
// type p=plus(expand), m=minus(collapase), n=none(no children)
var type = "n";
if (this.hasChildren(true) || (this.isDynamic() && !this.getIconMode())) {
// if (this.hasChildren(true)) {
type = (this.expanded) ? "m" : "p";
}
return "ygtv" + loc + type;
}
},
/**
* Returns the hover style for the icon
* @return {string} the css class hover state
* @method getHoverStyle
*/
getHoverStyle: function() {
var s = this.getStyle();
if (this.hasChildren(true) && !this.isLoading) {
s += "h";
}
return s;
},
/**
* Recursively expands all of this node's children.
* @method expandAll
*/
expandAll: function() {
var l = this.children.length;
for (var i=0;i<l;++i) {
var c = this.children[i];
if (c.isDynamic()) {
break;
} else if (! c.multiExpand) {
break;
} else {
c.expand();
c.expandAll();
}
}
},
/**
* Recursively collapses all of this node's children.
* @method collapseAll
*/
collapseAll: function() {
for (var i=0;i<this.children.length;++i) {
this.children[i].collapse();
this.children[i].collapseAll();
}
},
/**
* Configures this node for dynamically obtaining the child data
* when the node is first expanded. Calling it without the callback
* will turn off dynamic load for the node.
* @method setDynamicLoad
* @param fmDataLoader {function} the function that will be used 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) {
if (fnDataLoader) {
this.dataLoader = fnDataLoader;
this._dynLoad = true;
} else {
this.dataLoader = null;
this._dynLoad = false;
}
if (iconMode) {
this.iconMode = iconMode;
}
},
/**
* Evaluates if this node is the root node of the tree
* @method isRoot
* @return {boolean} true if this is the root node
*/
isRoot: function() {
return (this == this.tree.root);
},
/**
* Evaluates if this node's children should be loaded dynamically. Looks for
* the property both in this instance and the root node. If the tree is
* defined to load all children dynamically, the data callback function is
* defined in the root node
* @method isDynamic
* @return {boolean} true if this node's children are to be loaded dynamically
*/
isDynamic: function() {
if (this.isLeaf) {
return false;
} else {
return (!this.isRoot() && (this._dynLoad || this.tree.root._dynLoad));
// return lazy;
}
},
/**
* Returns the current icon mode. This refers to the way childless dynamic
* load nodes appear (this comes into play only after the initial dynamic
* load request produced no children).
* @method getIconMode
* @return {int} 0 for collapse style, 1 for leaf node style
*/
getIconMode: function() {
return (this.iconMode || this.tree.root.iconMode);
},
/**
* Checks if this node has children. If this node is lazy-loading and the
* children have not been rendered, we do not know whether or not there
* are actual children. In most cases, we need to assume that there are
* children (for instance, the toggle needs to show the expandable
* presentation state). In other times we want to know if there are rendered
* children. For the latter, "checkForLazyLoad" should be false.
* @method hasChildren
* @param checkForLazyLoad {boolean} should we check for unloaded children?
* @return {boolean} true if this has children or if it might and we are
* checking for this condition.
*/
hasChildren: function(checkForLazyLoad) {
if (this.isLeaf) {
return false;
} else {
return ( this.children.length > 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;
return ['<div class="ygtvitem" id="' , this.getElId() , '">' ,this.getNodeHtml() , this.getChildrenHtml() ,'</div>'].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] = '<div class="ygtvchildren" id="' + this.getChildrenElId() + '"';
// This is a workaround for an IE rendering issue, the child div has layout
// in IE, creating extra space if a leaf node is created with the expanded
// property set to true.
if (!this.expanded || !this.hasChildren()) {
sb[sb.length] = ' style="display:none;"';
}
sb[sb.length] = '>';
// Don't render the actual child node HTML unless this node is expanded.
if ( (this.hasChildren(true) && this.expanded) ||
(this.renderHidden && !this.isDynamic()) ) {
sb[sb.length] = this.renderChildren();
}
sb[sb.length] = '</div>';
return sb.join("");
},
/**
* Generates the markup for the child nodes. This is not done until the node
* is expanded.
* @method renderChildren
* @return {string} the html for this node's children
* @private
*/
renderChildren: function() {
var node = this;
if (this.isDynamic() && !this.dynamicLoadComplete) {
this.isLoading = true;
this.tree.locked = true;
if (this.dataLoader) {
setTimeout(
function() {
node.dataLoader(node,
function() {
node.loadComplete();
});
}, 10);
} else if (this.tree.root.dataLoader) {
setTimeout(
function() {
node.tree.root.dataLoader(node,
function() {
node.loadComplete();
});
}, 10);
} else {
return "Error: data loader not found or not specified.";
}
return "";
} else {
return this.completeRender();
}
},
/**
* Called when we know we have all the child data.
* @method completeRender
* @return {string} children html
*/
completeRender: function() {
var sb = [];
for (var i=0; i < this.children.length; ++i) {
// this.children[i].childrenRendered = false;
sb[sb.length] = this.children[i].getHtml();
}
this.childrenRendered = true;
return sb.join("");
},
/**
* Load complete is the callback function we pass to the data provider
* in dynamic load situations.
* @method loadComplete
*/
loadComplete: function() {
this.getChildrenEl().innerHTML = this.completeRender();
if (this.propagateHighlightDown) {
if (this.highlightState === 1 && !this.tree.singleNodeHighlight) {
for (var i = 0; i < this.children.length; i++) {
this.children[i].highlight(true);
}
} else if (this.highlightState === 0 || this.tree.singleNodeHighlight) {
for (i = 0; i < this.children.length; i++) {
this.children[i].unhighlight(true);
}
} // if (highlighState == 2) leave child nodes with whichever highlight state they are set
}
this.dynamicLoadComplete = true;
this.isLoading = false;
this.expand(true);
this.tree.locked = false;
},
/**
* Returns this node's ancestor at the specified depth.
* @method getAncestor
* @param {int} depth the depth of the ancestor.
* @return {Node} the ancestor
*/
getAncestor: function(depth) {
if (depth >= 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] = '<table id="ygtvtableel' + this.index + '" border="0" cellpadding="0" cellspacing="0" class="ygtvtable ygtvdepth' + this.depth;
if (this.enableHighlight) {
sb[sb.length] = ' ygtv-highlight' + this.highlightState;
}
if (this.className) {
sb[sb.length] = ' ' + this.className;
}
sb[sb.length] = '"><tr class="ygtvrow">';
for (var i=0;i<this.depth;++i) {
sb[sb.length] = '<td class="ygtvcell ' + this.getDepthStyle(i) + '"><div class="ygtvspacer"></div></td>';
}
if (this.hasIcon) {
sb[sb.length] = '<td id="' + this.getToggleElId();
sb[sb.length] = '" class="ygtvcell ';
sb[sb.length] = this.getStyle() ;
sb[sb.length] = '"><a href="#" class="ygtvspacer">&#160;</a></td>';
}
sb[sb.length] = '<td id="' + this.contentElId;
sb[sb.length] = '" class="ygtvcell ';
sb[sb.length] = this.contentStyle + ' ygtvcontent" ';
sb[sb.length] = (this.nowrap) ? ' nowrap="nowrap" ' : '';
sb[sb.length] = ' >';
sb[sb.length] = this.getContentHtml();
sb[sb.length] = '</td></tr></table>';
return sb.join("");
},
/**
* Get the markup for the contents of the node. This is designed to be overrided so that we can
* support different types of nodes.
* @method getContentHtml
* @return {string} The HTML that will render the content of this node.
*/
getContentHtml: function () {
return "";
},
/**
* Regenerates the html for this node and its children. To be used when the
* node is expanded and new children have been added.
* @method refresh
*/
refresh: function() {
// this.loadComplete();
this.getChildrenEl().innerHTML = this.completeRender();
if (this.hasIcon) {
var el = this.getToggleEl();
if (el) {
el.className = el.className.replace(/\bygtv[lt][nmp]h*\b/gi,this.getStyle());
}
}
},
/**
* Node toString
* @method toString
* @return {string} string representation of the node
*/
toString: function() {
return this._type + " (" + this.index + ")";
},
/**
* array of items that had the focus set on them
* so that they can be cleaned when focus is lost
* @property _focusHighlightedItems
* @type Array of DOM elements
* @private
*/
_focusHighlightedItems: [],
/**
* DOM element that actually got the browser focus
* @property _focusedItem
* @type DOM element
* @private
*/
_focusedItem: null,
/**
* Returns true if there are any elements in the node that can
* accept the real actual browser focus
* @method _canHaveFocus
* @return {boolean} success
* @private
*/
_canHaveFocus: function() {
return this.getEl().getElementsByTagName('a').length > 0;
},
/**
* Removes the focus of previously selected Node
* @method _removeFocus
* @private
*/
_removeFocus:function () {
if (this._focusedItem) {
Event.removeListener(this._focusedItem,'blur');
this._focusedItem = null;
}
var el;
while ((el = this._focusHighlightedItems.shift())) { // yes, it is meant as an assignment, really
Dom.removeClass(el,YAHOO.widget.TreeView.FOCUS_CLASS_NAME );
}
},
/**
* Sets the focus on the node element.
* It will only be able to set the focus on nodes that have anchor elements in it.
* Toggle or branch icons have anchors and can be focused on.
* If will fail in nodes that have no anchor
* @method focus
* @return {boolean} success
*/
focus: function () {
var focused = false, self = this;
if (this.tree.currentFocus) {
this.tree.currentFocus._removeFocus();
}
var expandParent = function (node) {
if (node.parent) {
expandParent(node.parent);
node.parent.expand();
}
};
expandParent(this);
Dom.getElementsBy (
function (el) {
return (/ygtv(([tl][pmn]h?)|(content))/).test(el.className);
} ,
'td' ,
self.getEl().firstChild ,
function (el) {
Dom.addClass(el, YAHOO.widget.TreeView.FOCUS_CLASS_NAME );
if (!focused) {
var aEl = el.getElementsByTagName('a');
if (aEl.length) {
aEl = aEl[0];
aEl.focus();
self._focusedItem = aEl;
Event.on(aEl,'blur',function () {
//console.log('f1');
self.tree.fireEvent('focusChanged',{oldNode:self.tree.currentFocus,newNode:null});
self.tree.currentFocus = null;
self._removeFocus();
});
focused = true;
}
}
self._focusHighlightedItems.push(el);
}
);
if (focused) {
//console.log('f2');
this.tree.fireEvent('focusChanged',{oldNode:this.tree.currentFocus,newNode:this});
this.tree.currentFocus = this;
} else {
//console.log('f3');
this.tree.fireEvent('focusChanged',{oldNode:self.tree.currentFocus,newNode:null});
this.tree.currentFocus = null;
this._removeFocus();
}
return focused;
},
/**
* Count of nodes in a branch
* @method getNodeCount
* @return {int} number of nodes in the branch
*/
getNodeCount: function() {
for (var i = 0, count = 0;i< this.children.length;i++) {
count += this.children[i].getNodeCount();
}
return count + 1;
},
/**
* 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 children loads dynamically, regardless of whether it is loaded or not.
* @method getNodeDefinition
* @return {Object | false} definition of the tree or false if the node or any children is defined as dynamic
*/
getNodeDefinition: function() {
if (this.isDynamic()) { return false; }
var def, defs = Lang.merge(this.data), children = [];
if (this.expanded) {defs.expanded = this.expanded; }
if (!this.multiExpand) { defs.multiExpand = this.multiExpand; }
if (!this.renderHidden) { defs.renderHidden = this.renderHidden; }
if (!this.hasIcon) { defs.hasIcon = this.hasIcon; }
if (this.nowrap) { defs.nowrap = this.nowrap; }
if (this.className) { defs.className = this.className; }
if (this.editable) { defs.editable = this.editable; }
if (this.enableHighlight) { defs.enableHighlight = this.enableHighlight; }
if (this.highlightState) { defs.highlightState = this.highlightState; }
if (this.propagateHighlightUp) { defs.propagateHighlightUp = this.propagateHighlightUp; }
if (this.propagateHighlightDown) { defs.propagateHighlightDown = this.propagateHighlightDown; }
defs.type = this._type;
for (var i = 0; i < this.children.length;i++) {
def = this.children[i].getNodeDefinition();
if (def === false) { return false;}
children.push(def);
}
if (children.length) { defs.children = children; }
return defs;
},
/**
* Generates the link that will invoke this node's toggle method
* @method getToggleLink
* @return {string} the javascript url for toggling this node
*/
getToggleLink: function() {
return 'return false;';
},
/**
* Sets the value of property for this node and all loaded descendants.
* Only public and defined properties can be set, not methods.
* Values for unknown properties will be assigned to the refNode.data object
* @method setNodesProperty
* @param name {string} Name of the property to be set
* @param value {any} value to be set
* @param refresh {boolean} if present and true, it does a refresh
*/
setNodesProperty: function(name, value, refresh) {
if (name.charAt(0) != '_' && !Lang.isUndefined(this[name]) && !Lang.isFunction(this[name]) ) {
this[name] = value;
} else {
this.data[name] = value;
}
for (var i = 0; i < this.children.length;i++) {
this.children[i].setNodesProperty(name,value);
}
if (refresh) {
this.refresh();
}
},
/**
* Toggles the highlighted state of a Node
* @method toggleHighlight
*/
toggleHighlight: function() {
if (this.enableHighlight) {
// unhighlights only if fully highligthed. For not or partially highlighted it will highlight
if (this.highlightState == 1) {
this.unhighlight();
} else {
this.highlight();
}
}
},
/**
* Turns highlighting on node.
* @method highlight
* @param _silent {boolean} optional, don't fire the highlightEvent
*/
highlight: function(_silent) {
if (this.enableHighlight) {
if (this.tree.singleNodeHighlight) {
if (this.tree._currentlyHighlighted) {
this.tree._currentlyHighlighted.unhighlight(_silent);
}
this.tree._currentlyHighlighted = this;
}
this.highlightState = 1;
this._setHighlightClassName();
if (!this.tree.singleNodeHighlight) {
if (this.propagateHighlightDown) {
for (var i = 0;i < this.children.length;i++) {
this.children[i].highlight(true);
}
}
if (this.propagateHighlightUp) {
if (this.parent) {
this.parent._childrenHighlighted();
}
}
}
if (!_silent) {
this.tree.fireEvent('highlightEvent',this);
}
}
},
/**
* Turns highlighting off a node.
* @method unhighlight
* @param _silent {boolean} optional, don't fire the highlightEvent
*/
unhighlight: function(_silent) {
if (this.enableHighlight) {
// might have checked singleNodeHighlight but it wouldn't really matter either way
this.tree._currentlyHighlighted = null;
this.highlightState = 0;
this._setHighlightClassName();
if (!this.tree.singleNodeHighlight) {
if (this.propagateHighlightDown) {
for (var i = 0;i < this.children.length;i++) {
this.children[i].unhighlight(true);
}
}
if (this.propagateHighlightUp) {
if (this.parent) {
this.parent._childrenHighlighted();
}
}
}
if (!_silent) {
this.tree.fireEvent('highlightEvent',this);
}
}
},
/**
* Checks whether all or part of the children of a node are highlighted and
* sets the node highlight to full, none or partial highlight.
* If set to propagate it will further call the parent
* @method _childrenHighlighted
* @private
*/
_childrenHighlighted: function() {
var yes = false, no = false;
if (this.enableHighlight) {
for (var i = 0;i < this.children.length;i++) {
switch(this.children[i].highlightState) {
case 0:
no = true;
break;
case 1:
yes = true;
break;
case 2:
yes = no = true;
break;
}
}
if (yes && no) {
this.highlightState = 2;
} else if (yes) {
this.highlightState = 1;
} else {
this.highlightState = 0;
}
this._setHighlightClassName();
if (this.propagateHighlightUp) {
if (this.parent) {
this.parent._childrenHighlighted();
}
}
}
},
/**
* Changes the classNames on the toggle and content containers to reflect the current highlighting
* @method _setHighlightClassName
* @private
*/
_setHighlightClassName: function() {
var el = Dom.get('ygtvtableel' + this.index);
if (el) {
el.className = el.className.replace(/\bygtv-highlight\d\b/gi,'ygtv-highlight' + this.highlightState);
}
}
};
YAHOO.augment(YAHOO.widget.Node, YAHOO.util.EventProvider);
})();
/**
* 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;
/**
* The default node presentation. The first parameter should be
* either a string that will be used as the node's label, or an object
* that has at least a string property called label. By default, clicking the
* label will toggle the expanded/collapsed state of the node. By
* setting the href property of the instance, this behavior can be
* changed so that the label will go to the specified href.
* @namespace YAHOO.widget
* @class TextNode
* @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 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)
*/
YAHOO.widget.TextNode = function(oData, oParent, expanded) {
if (oData) {
if (Lang.isString(oData)) {
oData = { label: oData };
}
this.init(oData, oParent, expanded);
this.setUpLabel(oData);
}
};
YAHOO.extend(YAHOO.widget.TextNode, YAHOO.widget.Node, {
/**
* The CSS class for the label href. Defaults to ygtvlabel, but can be
* overridden to provide a custom presentation for a specific node.
* @property labelStyle
* @type string
*/
labelStyle: "ygtvlabel",
/**
* The derived element id of the label for this node
* @property labelElId
* @type string
*/
labelElId: null,
/**
* The text for the label. It is assumed that the oData parameter will
* either be a string that will be used as the label, or an object that
* has a property called "label" that we will use.
* @property label
* @type string
*/
label: null,
/**
* The text for the title (tooltip) for the label element
* @property title
* @type string
*/
title: null,
/**
* 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 type
* @property _type
* @private
* @type string
* @default "TextNode"
*/
_type: "TextNode",
/**
* Sets up the node label
* @method setUpLabel
* @param oData string containing the label, or an object with a label property
*/
setUpLabel: function(oData) {
if (Lang.isString(oData)) {
oData = {
label: oData
};
} else {
if (oData.style) {
this.labelStyle = oData.style;
}
}
this.label = oData.label;
this.labelElId = "ygtvlabelel" + this.index;
},
/**
* Returns the label element
* @for YAHOO.widget.TextNode
* @method getLabelEl
* @return {object} the element
*/
getLabelEl: function() {
return Dom.get(this.labelElId);
},
// overrides YAHOO.widget.Node
getContentHtml: function() {
var sb = [];
sb[sb.length] = this.href?'<a':'<span';
sb[sb.length] = ' id="' + this.labelElId + '"';
sb[sb.length] = ' class="' + this.labelStyle + '"';
if (this.href) {
sb[sb.length] = ' href="' + this.href + '"';
sb[sb.length] = ' target="' + this.target + '"';
}
if (this.title) {
sb[sb.length] = ' title="' + this.title + '"';
}
sb[sb.length] = ' >';
sb[sb.length] = this.label;
sb[sb.length] = this.href?'</a>':'</span>';
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; }
if (this.href) { def.href = this.href; }
if (this.target != '_self') { def.target = this.target; }
return def;
},
toString: function() {
return YAHOO.widget.TextNode.superclass.toString.call(this) + ": " + this.label;
},
// deprecated
onLabelClick: function() {
return false;
},
refresh: function() {
YAHOO.widget.TextNode.superclass.refresh.call(this);
var label = this.getLabelEl();
label.innerHTML = this.label;
if (label.tagName.toUpperCase() == 'A') {
label.href = this.href;
label.target = this.target;
}
}
});
})();
/**
* 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;
/**
* 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.html, and the node's content
* @property setHtml
* @param o {object} An html string or object containing an html property
*/
setHtml: function(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;
}
});
})();
(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 <a href="http://developer.yahoo.com/yui/calendar/#internationalization">http://developer.yahoo.com/yui/calendar/#internationalization</a>
* @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 &lt;input&gt; 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;
}
editorData.oldValue = this.label;
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();
},
/**
* Returns the value from the input element.
* Overrides Node.getEditorValue.
* @method getEditorValue
* @param editorData {YAHOO.widget.TreeView.editorData} a shortcut to the static object holding editing information
* @return {string} date entered
*/
getEditorValue: function (editorData) {
if (Lang.isUndefined(Calendar)) {
return 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();
return dd.join(cal.cfg.getProperty('DATE_FIELD_DELIMITER'));
}
},
/**
* Finally displays the newly entered date in the tree.
* Overrides Node.displayEditedValue.
* @method displayEditedValue
* @param value {string} date to be displayed and stored in the node
* @param editorData {YAHOO.widget.TreeView.editorData} a shortcut to the static object holding editing information
*/
displayEditedValue: function (value,editorData) {
var node = editorData.node;
node.label = value;
node.getLabelEl().innerHTML = value;
},
/**
* 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 node or false if this node or any descendant is defined as dynamic
*/
getNodeDefinition: function() {
var def = YAHOO.widget.DateNode.superclass.getNodeDefinition.call(this);
if (def === false) { return false; }
if (this.calendarConfig) { def.calendarConfig = this.calendarConfig; }
return def;
}
});
})();
(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:
* <ul>
* <li>active {boolean}, whether there is an active cell editor </li>
* <li>whoHasIt {YAHOO.widget.TreeView} TreeView instance that is currently using the editor</li>
* <li>nodeType {string} value of static Node._type property, allows reuse of input element if node is of the same type.</li>
* <li>editorPanel {HTMLelement (&lt;div&gt;)} element holding the in-line editor</li>
* <li>inputContainer {HTMLelement (&lt;div&gt;)} element which will hold the type-specific input element(s) to be filled by the fillEditorContainer method</li>
* <li>buttonsContainer {HTMLelement (&lt;div&gt;)} element which holds the &lt;button&gt; elements for Ok/Cancel. If you don't want any of the buttons, hide it via CSS styles, don't destroy it</li>
* <li>node {YAHOO.widget.Node} reference to the Node being edited</li>
* <li>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 </li>
* <li>oldValue {any} value before editing</li>
* </ul>
* 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,
oldValue:undefined
// Each node type is free to add its own properties to this as it sees fit.
};
/**
* Validator function for edited data, called from the TreeView instance scope,
* receives the arguments (newValue, oldValue, nodeInstance)
* and returns either the validated (or type-converted) value or undefined.
* An undefined return will prevent the editor from closing
* @property validator
* @type function
* @default null
* @for YAHOO.widget.TreeView
*/
TVproto.validator = null;
/**
* Entry point for initializing the editing plug-in.
* TreeView will call this method on initializing if it exists
* @method _initEditor
* @for YAHOO.widget.TreeView
* @private
*/
TVproto._initEditor = function () {
/**
* Fires when the user clicks on the ok button of a node editor
* @event editorSaveEvent
* @type CustomEvent
* @param oArgs.newValue {mixed} the new value just entered
* @param oArgs.oldValue {mixed} the value originally in the tree
* @param oArgs.node {YAHOO.widget.Node} the node that has the focus
* @for YAHOO.widget.TreeView
*/
this.createEvent("editorSaveEvent", this);
/**
* Fires when the user clicks on the cancel button of a node editor
* @event editorCancelEvent
* @type CustomEvent
* @param {YAHOO.widget.Node} node the node that has the focus
* @for YAHOO.widget.TreeView
*/
this.createEvent("editorCancelEvent", this);
};
/**
* 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
* @private
*/
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,
close = true;
if (save) {
close = ed.node.saveEditorValue(ed) !== false;
} else {
this.fireEvent( 'editorCancelEvent', node);
}
if (close) {
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.
* @method saveEditorValue
* @param editorData {YAHOO.widget.TreeView.editorData} a shortcut to the static object holding editing information
* @return {false or none} a return of exactly false will prevent the editor from closing
* @for YAHOO.widget.Node
*/
Nproto.saveEditorValue = function (editorData) {
var node = editorData.node,
value,
validator = node.tree.validator;
value = this.getEditorValue(editorData);
if (Lang.isFunction(validator)) {
value = validator(value,editorData.oldValue,node);
if (Lang.isUndefined(value)) {
return false;
}
}
if (this.tree.fireEvent( 'editorSaveEvent', {
newValue:value,
oldValue:editorData.oldValue,
node:node
}) !== false) {
this.displayEditedValue(value,editorData);
}
};
/**
* Returns the value(s) from the input element(s) .
* Should be overridden by each node type.
* @method getEditorValue
* @param editorData {YAHOO.widget.TreeView.editorData} a shortcut to the static object holding editing information
* @return {any} value entered
* @for YAHOO.widget.Node
*/
Nproto.getEditorValue = function (editorData) {
};
/**
* Finally displays the newly edited value(s) in the tree.
* Should be overridden by each node type.
* @method displayEditedValue
* @param value {any} value to be displayed and stored in the node
* @param editorData {YAHOO.widget.TreeView.editorData} a shortcut to the static object holding editing information
* @for YAHOO.widget.Node
*/
Nproto.displayEditedValue = function (value,editorData) {
};
var TNproto = YAHOO.widget.TextNode.prototype;
/**
* Places an &lt;input&gt; 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;
}
editorData.oldValue = this.label;
input.value = this.label;
input.focus();
input.select();
};
/**
* Returns the value from the input element.
* Overrides Node.getEditorValue.
* @method getEditorValue
* @param editorData {YAHOO.widget.TreeView.editorData} a shortcut to the static object holding editing information
* @return {string} value entered
* @for YAHOO.widget.TextNode
*/
TNproto.getEditorValue = function (editorData) {
return editorData.inputElement.value;
};
/**
* Finally displays the newly edited value in the tree.
* Overrides Node.displayEditedValue.
* @method displayEditedValue
* @param value {string} value to be displayed and stored in the node
* @param editorData {YAHOO.widget.TreeView.editorData} a shortcut to the static object holding editing information
* @for YAHOO.widget.TextNode
*/
TNproto.displayEditedValue = function (value,editorData) {
var node = editorData.node;
node.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: "2.8.2r1", build: "7"});
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