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2183 lines
62 KiB
JavaScript
2183 lines
62 KiB
JavaScript
/*
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Copyright (c) 2006, Yahoo! Inc. All rights reserved.
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Code licensed under the BSD License:
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http://developer.yahoo.net/yui/license.txt
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version: 0.12.0
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*/
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/**
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* The treeview widget is a generic tree building tool.
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* @module treeview
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* @title TreeView Widget
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* @requires yahoo
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* @optional animation
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* @namespace YAHOO.widget
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*/
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/**
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* Contains the tree view state data and the root node.
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*
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* @class TreeView
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* @constructor
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* @param {string|HTMLElement} id The id of the element, or the element
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* itself that the tree will be inserted into.
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*/
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YAHOO.widget.TreeView = function(id) {
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if (id) { this.init(id); }
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};
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YAHOO.widget.TreeView.prototype = {
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/**
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* The id of tree container element
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* @property id
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* @type String
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*/
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id: null,
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/**
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* The host element for this tree
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* @property _el
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* @private
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*/
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_el: null,
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/**
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* Flat collection of all nodes in this tree
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* @property _nodes
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* @type Node[]
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* @private
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*/
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_nodes: null,
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/**
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* We lock the tree control while waiting for the dynamic loader to return
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* @property locked
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* @type boolean
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*/
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locked: false,
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/**
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* The animation to use for expanding children, if any
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* @property _expandAnim
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* @type string
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* @private
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*/
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_expandAnim: null,
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/**
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* The animation to use for collapsing children, if any
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* @property _collapseAnim
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* @type string
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* @private
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*/
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_collapseAnim: null,
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/**
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* The current number of animations that are executing
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* @property _animCount
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* @type int
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* @private
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*/
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_animCount: 0,
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/**
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* The maximum number of animations to run at one time.
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* @property maxAnim
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* @type int
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*/
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maxAnim: 2,
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/**
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* Sets up the animation for expanding children
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* @method setExpandAnim
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* @param {string} type the type of animation (acceptable values defined
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* in YAHOO.widget.TVAnim)
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*/
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setExpandAnim: function(type) {
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if (YAHOO.widget.TVAnim.isValid(type)) {
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this._expandAnim = type;
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}
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},
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/**
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* Sets up the animation for collapsing children
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* @method setCollapseAnim
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* @param {string} the type of animation (acceptable values defined in
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* YAHOO.widget.TVAnim)
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*/
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setCollapseAnim: function(type) {
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if (YAHOO.widget.TVAnim.isValid(type)) {
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this._collapseAnim = type;
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}
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},
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/**
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* Perform the expand animation if configured, or just show the
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* element if not configured or too many animations are in progress
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* @method animateExpand
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* @param el {HTMLElement} the element to animate
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* @param node {YAHOO.util.Node} the node that was expanded
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* @return {boolean} true if animation could be invoked, false otherwise
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*/
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animateExpand: function(el, node) {
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if (this._expandAnim && this._animCount < this.maxAnim) {
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// this.locked = true;
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var tree = this;
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var a = YAHOO.widget.TVAnim.getAnim(this._expandAnim, el,
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function() { tree.expandComplete(node); });
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if (a) {
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++this._animCount;
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this.fireEvent("animStart", {
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"node": node,
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"type": "expand"
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});
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a.animate();
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}
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return true;
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}
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return false;
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},
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/**
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* Perform the collapse animation if configured, or just show the
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* element if not configured or too many animations are in progress
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* @method animateCollapse
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* @param el {HTMLElement} the element to animate
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* @param node {YAHOO.util.Node} the node that was expanded
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* @return {boolean} true if animation could be invoked, false otherwise
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*/
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animateCollapse: function(el, node) {
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if (this._collapseAnim && this._animCount < this.maxAnim) {
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// this.locked = true;
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var tree = this;
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var a = YAHOO.widget.TVAnim.getAnim(this._collapseAnim, el,
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function() { tree.collapseComplete(node); });
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if (a) {
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++this._animCount;
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this.fireEvent("animStart", {
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"node": node,
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"type": "collapse"
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});
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a.animate();
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}
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return true;
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}
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return false;
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},
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/**
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* Function executed when the expand animation completes
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* @method expandComplete
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*/
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expandComplete: function(node) {
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--this._animCount;
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this.fireEvent("animComplete", {
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"node": node,
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"type": "expand"
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});
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// this.locked = false;
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},
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/**
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* Function executed when the collapse animation completes
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* @method collapseComplete
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*/
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collapseComplete: function(node) {
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--this._animCount;
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this.fireEvent("animComplete", {
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"node": node,
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"type": "collapse"
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});
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// this.locked = false;
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},
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/**
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* Initializes the tree
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* @method init
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* @parm {string|HTMLElement} id the id of the element that will hold the tree
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* @private
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*/
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init: function(id) {
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this.id = id;
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if ("string" !== typeof id) {
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this._el = id;
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this.id = this.generateId(id);
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}
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/**
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* When animation is enabled, this event fires when the animation
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* starts
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* @event animStart
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* @type CustomEvent
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* @param {YAHOO.widget.Node} node the node that is expanding/collapsing
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* @parm {String} type the type of animation ("expand" or "collapse")
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*/
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this.createEvent("animStart", this);
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/**
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* When animation is enabled, this event fires when the animation
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* completes
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* @event animComplete
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* @type CustomEvent
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* @param {YAHOO.widget.Node} node the node that is expanding/collapsing
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* @parm {String} type the type of animation ("expand" or "collapse")
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*/
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this.createEvent("animComplete", this);
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/**
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* Fires when a node is going to be expanded. Return false to stop
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* the expand.
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* @event collapse
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* @type CustomEvent
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* @param {YAHOO.widget.Node} node the node that is expanding/collapsing
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*/
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this.createEvent("collapse", this);
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/**
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* Fires when a node is going to be collapsed. Return false to stop
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* the collapse.
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* @event expand
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* @type CustomEvent
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* @param {YAHOO.widget.Node} node the node that is expanding/collapsing
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*/
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this.createEvent("expand", this);
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this._nodes = [];
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// store a global reference
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YAHOO.widget.TreeView.trees[this.id] = this;
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// Set up the root node
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this.root = new YAHOO.widget.RootNode(this);
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},
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/**
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* Renders the tree boilerplate and visible nodes
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* @method draw
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*/
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draw: function() {
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var html = this.root.getHtml();
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this.getEl().innerHTML = html;
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this.firstDraw = false;
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},
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/**
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* Returns the tree's host element
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* @method getEl
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* @return {HTMLElement} the host element
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*/
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getEl: function() {
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if (! this._el) {
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this._el = document.getElementById(this.id);
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}
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return this._el;
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},
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/**
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* Nodes register themselves with the tree instance when they are created.
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* @method regNode
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* @param node {Node} the node to register
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* @private
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*/
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regNode: function(node) {
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this._nodes[node.index] = node;
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},
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/**
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* Returns the root node of this tree
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* @method getRoot
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* @return {Node} the root node
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*/
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getRoot: function() {
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return this.root;
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},
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/**
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* Configures this tree to dynamically load all child data
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* @method setDynamicLoad
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* @param {function} fnDataLoader the function that will be called to get the data
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* @param iconMode {int} configures the icon that is displayed when a dynamic
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* load node is expanded the first time without children. By default, the
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* "collapse" icon will be used. If set to 1, the leaf node icon will be
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* displayed.
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*/
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setDynamicLoad: function(fnDataLoader, iconMode) {
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this.root.setDynamicLoad(fnDataLoader, iconMode);
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},
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/**
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* Expands all child nodes. Note: this conflicts with the "multiExpand"
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* node property. If expand all is called in a tree with nodes that
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* do not allow multiple siblings to be displayed, only the last sibling
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* will be expanded.
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* @method expandAll
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*/
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expandAll: function() {
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if (!this.locked) {
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this.root.expandAll();
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}
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},
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/**
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* Collapses all expanded child nodes in the entire tree.
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* @method collapseAll
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*/
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collapseAll: function() {
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if (!this.locked) {
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this.root.collapseAll();
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}
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},
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/**
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* Returns a node in the tree that has the specified index (this index
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* is created internally, so this function probably will only be used
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* in html generated for a given node.)
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* @method getNodeByIndex
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* @param {int} nodeIndex the index of the node wanted
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* @return {Node} the node with index=nodeIndex, null if no match
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*/
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getNodeByIndex: function(nodeIndex) {
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var n = this._nodes[nodeIndex];
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return (n) ? n : null;
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},
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/**
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* Returns a node that has a matching property and value in the data
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* object that was passed into its constructor.
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* @method getNodeByProperty
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* @param {object} property the property to search (usually a string)
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* @param {object} value the value we want to find (usuall an int or string)
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* @return {Node} the matching node, null if no match
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*/
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getNodeByProperty: function(property, value) {
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for (var i in this._nodes) {
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var n = this._nodes[i];
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if (n.data && value == n.data[property]) {
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return n;
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}
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}
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return null;
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},
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/**
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* Returns a collection of nodes that have a matching property
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* and value in the data object that was passed into its constructor.
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* @method getNodesByProperty
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* @param {object} property the property to search (usually a string)
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* @param {object} value the value we want to find (usuall an int or string)
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* @return {Array} the matching collection of nodes, null if no match
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*/
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getNodesByProperty: function(property, value) {
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var values = [];
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for (var i in this._nodes) {
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var n = this._nodes[i];
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if (n.data && value == n.data[property]) {
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values.push(n);
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}
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}
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return (values.length) ? values : null;
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},
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/**
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* Removes the node and its children, and optionally refreshes the
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* branch of the tree that was affected.
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* @method removeNode
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* @param {Node} The node to remove
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* @param {boolean} autoRefresh automatically refreshes branch if true
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* @return {boolean} False is there was a problem, true otherwise.
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*/
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removeNode: function(node, autoRefresh) {
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// Don't delete the root node
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if (node.isRoot()) {
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return false;
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}
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// Get the branch that we may need to refresh
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var p = node.parent;
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if (p.parent) {
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p = p.parent;
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}
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// Delete the node and its children
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this._deleteNode(node);
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// Refresh the parent of the parent
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if (autoRefresh && p && p.childrenRendered) {
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p.refresh();
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}
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return true;
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},
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/**
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* Deletes this nodes child collection, recursively. Also collapses
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* the node, and resets the dynamic load flag. The primary use for
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* this method is to purge a node and allow it to fetch its data
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* dynamically again.
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* @method removeChildren
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* @param {Node} node the node to purge
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*/
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removeChildren: function(node) {
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while (node.children.length) {
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this._deleteNode(node.children[0]);
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}
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node.childrenRendered = false;
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node.dynamicLoadComplete = false;
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if (node.expanded) {
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node.collapse();
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} else {
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node.updateIcon();
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}
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},
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/**
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* Deletes the node and recurses children
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* @method _deleteNode
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* @private
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*/
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_deleteNode: function(node) {
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// Remove all the child nodes first
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this.removeChildren(node);
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// Remove the node from the tree
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this.popNode(node);
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},
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/**
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* Removes the node from the tree, preserving the child collection
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* to make it possible to insert the branch into another part of the
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* tree, or another tree.
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* @method popNode
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* @param {Node} the node to remove
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*/
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popNode: function(node) {
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var p = node.parent;
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// Update the parent's collection of children
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var a = [];
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for (var i=0, len=p.children.length;i<len;++i) {
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if (p.children[i] != node) {
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a[a.length] = p.children[i];
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}
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}
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p.children = a;
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// reset the childrenRendered flag for the parent
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p.childrenRendered = false;
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// Update the sibling relationship
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if (node.previousSibling) {
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node.previousSibling.nextSibling = node.nextSibling;
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}
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if (node.nextSibling) {
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node.nextSibling.previousSibling = node.previousSibling;
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}
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node.parent = null;
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node.previousSibling = null;
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node.nextSibling = null;
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node.tree = null;
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// Update the tree's node collection
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delete this._nodes[node.index];
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},
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/**
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* TreeView instance toString
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* @method toString
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* @return {string} string representation of the tree
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*/
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toString: function() {
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return "TreeView " + this.id;
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},
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/**
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* Generates an unique id for an element if it doesn't yet have one
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* @method generateId
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* @private
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*/
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generateId: function(el) {
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var id = el.id;
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if (!id) {
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id = "yui-tv-auto-id-" + YAHOO.widget.TreeView.counter;
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++YAHOO.widget.TreeView.counter;
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}
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return id;
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},
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/**
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* Abstract method that is executed when a node is expanded
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* @method onExpand
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* @param node {Node} the node that was expanded
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* @deprecated use treeobj.subscribe("expand") instead
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*/
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onExpand: function(node) { },
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/**
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* Abstract method that is executed when a node is collapsed.
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* @method onCollapse
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* @param node {Node} the node that was collapsed.
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* @deprecated use treeobj.subscribe("collapse") instead
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*/
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onCollapse: function(node) { }
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};
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YAHOO.augment(YAHOO.widget.TreeView, YAHOO.util.EventProvider);
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/**
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* Count of all nodes in all trees
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* @property YAHOO.widget.TreeView.nodeCount
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* @type int
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* @static
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*/
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YAHOO.widget.TreeView.nodeCount = 0;
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/**
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* Global cache of tree instances
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* @property YAHOO.widget.TreeView.trees
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* @type Array
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* @static
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* @private
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*/
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YAHOO.widget.TreeView.trees = [];
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|
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/**
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* Counter for generating a new unique element id
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* @property YAHOO.widget.TreeView.counter
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* @static
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* @private
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*/
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YAHOO.widget.TreeView.counter = 0;
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/**
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* Global method for getting a tree by its id. Used in the generated
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* tree html.
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* @method YAHOO.widget.TreeView.getTree
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* @param treeId {String} the id of the tree instance
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* @return {TreeView} the tree instance requested, null if not found.
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* @static
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*/
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YAHOO.widget.TreeView.getTree = function(treeId) {
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var t = YAHOO.widget.TreeView.trees[treeId];
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return (t) ? t : null;
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};
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|
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/**
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* Global method for getting a node by its id. Used in the generated
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* tree html.
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* @method YAHOO.widget.TreeView.getNode
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* @param treeId {String} the id of the tree instance
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* @param nodeIndex {String} the index of the node to return
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* @return {Node} the node instance requested, null if not found
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|
* @static
|
|
*/
|
|
YAHOO.widget.TreeView.getNode = function(treeId, nodeIndex) {
|
|
var t = YAHOO.widget.TreeView.getTree(treeId);
|
|
return (t) ? t.getNodeByIndex(nodeIndex) : null;
|
|
};
|
|
|
|
/**
|
|
* Add a DOM event
|
|
* @method YAHOO.widget.TreeView.addHandler
|
|
* @param el the elment to bind the handler to
|
|
* @param {string} sType the type of event handler
|
|
* @param {function} fn the callback to invoke
|
|
* @static
|
|
*/
|
|
YAHOO.widget.TreeView.addHandler = function (el, sType, fn) {
|
|
if (el.addEventListener) {
|
|
el.addEventListener(sType, fn, false);
|
|
} else if (el.attachEvent) {
|
|
el.attachEvent("on" + sType, fn);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Remove a DOM event
|
|
* @method YAHOO.widget.TreeView.removeHandler
|
|
* @param el the elment to bind the handler to
|
|
* @param {string} sType the type of event handler
|
|
* @param {function} fn the callback to invoke
|
|
* @static
|
|
*/
|
|
|
|
YAHOO.widget.TreeView.removeHandler = function (el, sType, fn) {
|
|
if (el.removeEventListener) {
|
|
el.removeEventListener(sType, fn, false);
|
|
} else if (el.detachEvent) {
|
|
el.detachEvent("on" + sType, fn);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Attempts to preload the images defined in the styles used to draw the tree by
|
|
* rendering off-screen elements that use the styles.
|
|
* @method YAHOO.widget.TreeView.preload
|
|
* @param {string} prefix the prefix to use to generate the names of the
|
|
* images to preload, default is ygtv
|
|
* @static
|
|
*/
|
|
YAHOO.widget.TreeView.preload = function(prefix) {
|
|
prefix = prefix || "ygtv";
|
|
var styles = ["tn","tm","tmh","tp","tph","ln","lm","lmh","lp","lph","loading"];
|
|
|
|
var sb = [];
|
|
|
|
for (var i = 0; i < styles.length; ++i) {
|
|
sb[sb.length] = '<span class="' + prefix + styles[i] + '"> </span>';
|
|
}
|
|
|
|
var f = document.createElement("div");
|
|
var s = f.style;
|
|
s.position = "absolute";
|
|
s.top = "-1000px";
|
|
s.left = "-1000px";
|
|
f.innerHTML = sb.join("");
|
|
|
|
document.body.appendChild(f);
|
|
|
|
YAHOO.widget.TreeView.removeHandler(window,
|
|
"load", YAHOO.widget.TreeView.preload);
|
|
|
|
};
|
|
|
|
YAHOO.widget.TreeView.addHandler(window,
|
|
"load", YAHOO.widget.TreeView.preload);
|
|
|
|
/**
|
|
* 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
|
|
* @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
|
|
* @constructor
|
|
*/
|
|
YAHOO.widget.Node = function(oData, oParent, expanded) {
|
|
if (oData) { this.init(oData, oParent, expanded); }
|
|
};
|
|
|
|
YAHOO.widget.Node.prototype = {
|
|
|
|
/**
|
|
* The index for this instance obtained from global counter in YAHOO.widget.TreeView.
|
|
* @property index
|
|
* @type int
|
|
*/
|
|
index: 0,
|
|
|
|
/**
|
|
* This node's child node collection.
|
|
* @property children
|
|
* @type Node[]
|
|
*/
|
|
children: null,
|
|
|
|
/**
|
|
* Tree instance this node is part of
|
|
* @property tree
|
|
* @type TreeView
|
|
*/
|
|
tree: null,
|
|
|
|
/**
|
|
* The data linked to this node. This can be any object or primitive
|
|
* value, and the data can be used in getNodeHtml().
|
|
* @property data
|
|
* @type object
|
|
*/
|
|
data: null,
|
|
|
|
/**
|
|
* Parent node
|
|
* @property parent
|
|
* @type Node
|
|
*/
|
|
parent: null,
|
|
|
|
/**
|
|
* The depth of this node. We start at -1 for the root node.
|
|
* @property depth
|
|
* @type int
|
|
*/
|
|
depth: -1,
|
|
|
|
/**
|
|
* The href for the node's label. If one is not specified, the href will
|
|
* be set so that it toggles the node.
|
|
* @property href
|
|
* @type string
|
|
*/
|
|
href: null,
|
|
|
|
/**
|
|
* The label href target, defaults to current window
|
|
* @property target
|
|
* @type string
|
|
*/
|
|
target: "_self",
|
|
|
|
/**
|
|
* The node's expanded/collapsed state
|
|
* @property expanded
|
|
* @type boolean
|
|
*/
|
|
expanded: false,
|
|
|
|
/**
|
|
* Can multiple children be expanded at once?
|
|
* @property multiExpand
|
|
* @type boolean
|
|
*/
|
|
multiExpand: true,
|
|
|
|
/**
|
|
* Should we render children for a collapsed node? It is possible that the
|
|
* implementer will want to render the hidden data... @todo verify that we
|
|
* need this, and implement it if we do.
|
|
* @property renderHidden
|
|
* @type boolean
|
|
*/
|
|
renderHidden: false,
|
|
|
|
/**
|
|
* This flag is set to true when the html is generated for this node's
|
|
* children, and set to false when new children are added.
|
|
* @property childrenRendered
|
|
* @type boolean
|
|
*/
|
|
childrenRendered: false,
|
|
|
|
/**
|
|
* Dynamically loaded nodes only fetch the data the first time they are
|
|
* expanded. This flag is set to true once the data has been fetched.
|
|
* @property dynamicLoadComplete
|
|
* @type boolean
|
|
*/
|
|
dynamicLoadComplete: false,
|
|
|
|
/**
|
|
* This node's previous sibling
|
|
* @property previousSibling
|
|
* @type Node
|
|
*/
|
|
previousSibling: null,
|
|
|
|
/**
|
|
* This node's next sibling
|
|
* @property nextSibling
|
|
* @type Node
|
|
*/
|
|
nextSibling: null,
|
|
|
|
/**
|
|
* We can set the node up to call an external method to get the child
|
|
* data dynamically.
|
|
* @property _dynLoad
|
|
* @type boolean
|
|
* @private
|
|
*/
|
|
_dynLoad: false,
|
|
|
|
/**
|
|
* Function to execute when we need to get this node's child data.
|
|
* @property dataLoader
|
|
* @type function
|
|
*/
|
|
dataLoader: null,
|
|
|
|
/**
|
|
* This is true for dynamically loading nodes while waiting for the
|
|
* callback to return.
|
|
* @property isLoading
|
|
* @type boolean
|
|
*/
|
|
isLoading: false,
|
|
|
|
/**
|
|
* The toggle/branch icon will not show if this is set to false. This
|
|
* could be useful if the implementer wants to have the child contain
|
|
* extra info about the parent, rather than an actual node.
|
|
* @property hasIcon
|
|
* @type boolean
|
|
*/
|
|
hasIcon: true,
|
|
|
|
/**
|
|
* Used to configure what happens when a dynamic load node is expanded
|
|
* and we discover that it does not have children. By default, it is
|
|
* treated as if it still could have children (plus/minus icon). Set
|
|
* iconMode to have it display like a leaf node instead.
|
|
* @property iconMode
|
|
* @type int
|
|
*/
|
|
iconMode: 0,
|
|
|
|
/**
|
|
* The node type
|
|
* @property _type
|
|
* @private
|
|
*/
|
|
_type: "Node",
|
|
|
|
/*
|
|
spacerPath: "http://us.i1.yimg.com/us.yimg.com/i/space.gif",
|
|
expandedText: "Expanded",
|
|
collapsedText: "Collapsed",
|
|
loadingText: "Loading",
|
|
*/
|
|
|
|
/**
|
|
* Initializes this node, gets some of the properties from the parent
|
|
* @method init
|
|
* @param oData {object} a string or object containing the data that will
|
|
* be used to render this node
|
|
* @param oParent {Node} this node's parent node
|
|
* @param expanded {boolean} the initial expanded/collapsed state
|
|
*/
|
|
init: function(oData, oParent, expanded) {
|
|
|
|
this.data = oData;
|
|
this.children = [];
|
|
this.index = YAHOO.widget.TreeView.nodeCount;
|
|
++YAHOO.widget.TreeView.nodeCount;
|
|
this.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 tre 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;
|
|
|
|
if (!this.href) {
|
|
this.href = "javascript:" + this.getToggleLink();
|
|
}
|
|
|
|
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);
|
|
|
|
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) {
|
|
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() {
|
|
return this.parent.children;
|
|
},
|
|
|
|
/**
|
|
* 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 document.getElementById(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 document.getElementById(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 document.getElementById(this.getToggleElId());
|
|
},
|
|
|
|
/*
|
|
* 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 "";
|
|
}
|
|
},
|
|
*/
|
|
|
|
/**
|
|
* 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 "YAHOO.widget.TreeView.getNode(\'" + this.tree.id + "\'," +
|
|
this.index + ").toggle()";
|
|
},
|
|
|
|
/**
|
|
* Hides this nodes children (creating them if necessary), changes the
|
|
* @method collapse
|
|
* toggle style.
|
|
*/
|
|
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;
|
|
return;
|
|
}
|
|
|
|
// hide the child div
|
|
this.hideChildren();
|
|
this.expanded = false;
|
|
|
|
this.updateIcon();
|
|
|
|
// this.getSpacer().title = this.getStateText();
|
|
|
|
},
|
|
|
|
/**
|
|
* 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() {
|
|
// Only expand if currently collapsed.
|
|
if (this.expanded) { return; }
|
|
|
|
// fire the expand event handler
|
|
var 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; i<sibs.length; ++i) {
|
|
if (sibs[i] != this && sibs[i].expanded) {
|
|
sibs[i].collapse();
|
|
}
|
|
}
|
|
}
|
|
|
|
this.showChildren();
|
|
},
|
|
|
|
updateIcon: function() {
|
|
if (this.hasIcon) {
|
|
var el = this.getToggleEl();
|
|
if (el) {
|
|
el.className = 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() {
|
|
for (var i=0;i<this.children.length;++i) {
|
|
var c = this.children[i];
|
|
if (c.isDynamic()) {
|
|
alert("Not supported (lazy load + expand all)");
|
|
break;
|
|
} else if (! c.multiExpand) {
|
|
alert("Not supported (no multi-expand + expand all)");
|
|
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() {
|
|
var lazy = (!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.
|
|
* @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) {
|
|
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;
|
|
|
|
var sb = [];
|
|
sb[sb.length] = '<div class="ygtvitem" id="' + this.getElId() + '">';
|
|
sb[sb.length] = this.getNodeHtml();
|
|
sb[sb.length] = this.getChildrenHtml();
|
|
sb[sb.length] = '</div>';
|
|
return sb.join("");
|
|
},
|
|
|
|
/**
|
|
* Called when first rendering the tree. We always build the div that will
|
|
* contain this nodes children, but we don't render the children themselves
|
|
* unless this node is expanded.
|
|
* @method getChildrenHtml
|
|
* @return {string} the children container div html and any expanded children
|
|
* @private
|
|
*/
|
|
getChildrenHtml: function() {
|
|
|
|
var sb = [];
|
|
sb[sb.length] = '<div class="ygtvchildren"';
|
|
sb[sb.length] = ' id="' + this.getChildrenElId() + '"';
|
|
if (!this.expanded) {
|
|
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();
|
|
this.dynamicLoadComplete = true;
|
|
this.isLoading = false;
|
|
this.expand();
|
|
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 is designed to be overrided so that we can
|
|
* support different types of nodes.
|
|
* @method getNodeHtml
|
|
* @return {string} The HTML that will render this node.
|
|
*/
|
|
getNodeHtml: 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 = this.getStyle();
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Node toString
|
|
* @method toString
|
|
* @return {string} string representation of the node
|
|
*/
|
|
toString: function() {
|
|
return "Node (" + this.index + ")";
|
|
}
|
|
|
|
};
|
|
|
|
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, {
|
|
|
|
// overrides YAHOO.widget.Node
|
|
getNodeHtml: function() {
|
|
return "";
|
|
},
|
|
|
|
toString: function() {
|
|
return "RootNode";
|
|
},
|
|
|
|
loadComplete: function() {
|
|
this.tree.draw();
|
|
}
|
|
|
|
});
|
|
/**
|
|
* 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 a string propery called label. By default, the clicking the
|
|
* label will toggle the expanded/collapsed state of the node. By
|
|
* changing 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
|
|
* @param oParent {YAHOO.widget.Node} this node's parent node
|
|
* @param expanded {boolean} the initial expanded/collapsed state
|
|
*/
|
|
YAHOO.widget.TextNode = function(oData, oParent, expanded) {
|
|
|
|
if (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,
|
|
|
|
textNodeParentChange: function() {
|
|
|
|
/**
|
|
* Custom event that is fired when the text node label is clicked. The
|
|
* custom event is defined on the tree instance, so there is a single
|
|
* event that handles all nodes in the tree. The node clicked is
|
|
* provided as an argument
|
|
*
|
|
* @event labelClick
|
|
* @for YAHOO.widget.TreeView
|
|
* @param {YAHOO.widget.Node} node the node clicked
|
|
*/
|
|
if (this.tree && !this.tree.hasEvent("labelClick")) {
|
|
this.tree.createEvent("labelClick", this.tree);
|
|
}
|
|
|
|
},
|
|
|
|
/**
|
|
* Sets up the node label
|
|
* @method setUpLabel
|
|
* @param oData string containing the label, or an object with a label property
|
|
*/
|
|
setUpLabel: function(oData) {
|
|
|
|
// set up the custom event on the tree
|
|
this.textNodeParentChange();
|
|
this.subscribe("parentChange", this.textNodeParentChange);
|
|
|
|
if (typeof oData == "string") {
|
|
oData = { label: oData };
|
|
}
|
|
this.label = oData.label;
|
|
|
|
// update the link
|
|
if (oData.href) {
|
|
this.href = oData.href;
|
|
}
|
|
|
|
// set the target
|
|
if (oData.target) {
|
|
this.target = oData.target;
|
|
}
|
|
|
|
if (oData.style) {
|
|
this.labelStyle = oData.style;
|
|
}
|
|
|
|
this.labelElId = "ygtvlabelel" + this.index;
|
|
},
|
|
|
|
/**
|
|
* Returns the label element
|
|
* @for YAHOO.widget.TextNode
|
|
* @method getLabelEl
|
|
* @return {object} the element
|
|
*/
|
|
getLabelEl: function() {
|
|
return document.getElementById(this.labelElId);
|
|
},
|
|
|
|
// overrides YAHOO.widget.Node
|
|
getNodeHtml: function() {
|
|
var sb = [];
|
|
|
|
sb[sb.length] = '<table border="0" cellpadding="0" cellspacing="0">';
|
|
sb[sb.length] = '<tr>';
|
|
|
|
for (var i=0;i<this.depth;++i) {
|
|
// sb[sb.length] = '<td class="ygtvdepthcell"> </td>';
|
|
sb[sb.length] = '<td class="' + this.getDepthStyle(i) + '"> </td>';
|
|
}
|
|
|
|
var getNode = 'YAHOO.widget.TreeView.getNode(\'' +
|
|
this.tree.id + '\',' + this.index + ')';
|
|
|
|
sb[sb.length] = '<td';
|
|
// sb[sb.length] = ' onselectstart="return false"';
|
|
sb[sb.length] = ' id="' + this.getToggleElId() + '"';
|
|
sb[sb.length] = ' class="' + this.getStyle() + '"';
|
|
if (this.hasChildren(true)) {
|
|
sb[sb.length] = ' onmouseover="this.className=';
|
|
sb[sb.length] = getNode + '.getHoverStyle()"';
|
|
sb[sb.length] = ' onmouseout="this.className=';
|
|
sb[sb.length] = getNode + '.getStyle()"';
|
|
}
|
|
sb[sb.length] = ' onclick="javascript:' + this.getToggleLink() + '">';
|
|
|
|
/*
|
|
sb[sb.length] = '<img id="' + this.getSpacerId() + '"';
|
|
sb[sb.length] = ' alt=""';
|
|
sb[sb.length] = ' tabindex=0';
|
|
sb[sb.length] = ' src="' + this.spacerPath + '"';
|
|
sb[sb.length] = ' title="' + this.getStateText() + '"';
|
|
sb[sb.length] = ' class="ygtvspacer"';
|
|
// sb[sb.length] = ' onkeypress="return ' + getNode + '".onKeyPress()"';
|
|
sb[sb.length] = ' />';
|
|
*/
|
|
|
|
sb[sb.length] = ' ';
|
|
|
|
sb[sb.length] = '</td>';
|
|
sb[sb.length] = '<td>';
|
|
sb[sb.length] = '<a';
|
|
sb[sb.length] = ' id="' + this.labelElId + '"';
|
|
sb[sb.length] = ' class="' + this.labelStyle + '"';
|
|
sb[sb.length] = ' href="' + this.href + '"';
|
|
sb[sb.length] = ' target="' + this.target + '"';
|
|
sb[sb.length] = ' onclick="return ' + getNode + '.onLabelClick(' + getNode +')"';
|
|
if (this.hasChildren(true)) {
|
|
sb[sb.length] = ' onmouseover="document.getElementById(\'';
|
|
sb[sb.length] = this.getToggleElId() + '\').className=';
|
|
sb[sb.length] = getNode + '.getHoverStyle()"';
|
|
sb[sb.length] = ' onmouseout="document.getElementById(\'';
|
|
sb[sb.length] = this.getToggleElId() + '\').className=';
|
|
sb[sb.length] = getNode + '.getStyle()"';
|
|
}
|
|
sb[sb.length] = ' >';
|
|
sb[sb.length] = this.label;
|
|
sb[sb.length] = '</a>';
|
|
sb[sb.length] = '</td>';
|
|
sb[sb.length] = '</tr>';
|
|
sb[sb.length] = '</table>';
|
|
|
|
return sb.join("");
|
|
},
|
|
|
|
/**
|
|
* Executed when the label is clicked. Fires the labelClick custom event.
|
|
* @method onLabelClick
|
|
* @param me {Node} this node
|
|
* @scope the anchor tag clicked
|
|
* @return false to cancel the anchor click
|
|
*/
|
|
onLabelClick: function(me) {
|
|
return me.tree.fireEvent("labelClick", me);
|
|
//return true;
|
|
},
|
|
|
|
toString: function() {
|
|
return "TextNode (" + this.index + ") " + this.label;
|
|
}
|
|
|
|
});
|
|
/**
|
|
* 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
|
|
* @param oParent {YAHOO.widget.Node} this node's parent node
|
|
* @param expanded {boolean} the initial expanded/collapsed state
|
|
* @constructor
|
|
*/
|
|
YAHOO.widget.MenuNode = function(oData, oParent, expanded) {
|
|
if (oData) {
|
|
this.init(oData, oParent, expanded);
|
|
this.setUpLabel(oData);
|
|
}
|
|
|
|
/*
|
|
* Menus usually allow only one branch to be open at a time.
|
|
*/
|
|
this.multiExpand = false;
|
|
|
|
|
|
};
|
|
|
|
YAHOO.extend(YAHOO.widget.MenuNode, YAHOO.widget.TextNode, {
|
|
|
|
toString: function() {
|
|
return "MenuNode (" + this.index + ") " + this.label;
|
|
}
|
|
|
|
});
|
|
/**
|
|
* This implementation takes either a string or object for the
|
|
* oData argument. If is it a string, we will use it for the display
|
|
* of this node (and it can contain any html code). If the parameter
|
|
* is an object, we look 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
|
|
* @param oParent {YAHOO.widget.Node} this node's parent node
|
|
* @param expanded {boolean} the initial expanded/collapsed state
|
|
* @param hasIcon {boolean} specifies whether or not leaf nodes should
|
|
* have an icon
|
|
*/
|
|
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 generated id that will contain the data passed in by the implementer.
|
|
* @property contentElId
|
|
* @type string
|
|
*/
|
|
contentElId: null,
|
|
|
|
/**
|
|
* The HTML content to use for this node's display
|
|
* @property content
|
|
* @type string
|
|
*/
|
|
content: null,
|
|
|
|
/**
|
|
* Sets up the node label
|
|
* @property initContent
|
|
* @param {object} An html string or object containing an html property
|
|
* @param {boolean} hasIcon determines if the node will be rendered with an
|
|
* icon or not
|
|
*/
|
|
initContent: function(oData, hasIcon) {
|
|
if (typeof oData == "string") {
|
|
oData = { html: oData };
|
|
}
|
|
|
|
this.html = oData.html;
|
|
this.contentElId = "ygtvcontentel" + this.index;
|
|
this.hasIcon = hasIcon;
|
|
|
|
},
|
|
|
|
/**
|
|
* Returns the outer html element for this node's content
|
|
* @method getContentEl
|
|
* @return {HTMLElement} the element
|
|
*/
|
|
getContentEl: function() {
|
|
return document.getElementById(this.contentElId);
|
|
},
|
|
|
|
// overrides YAHOO.widget.Node
|
|
getNodeHtml: function() {
|
|
var sb = [];
|
|
|
|
sb[sb.length] = '<table border="0" cellpadding="0" cellspacing="0">';
|
|
sb[sb.length] = '<tr>';
|
|
|
|
for (var i=0;i<this.depth;++i) {
|
|
sb[sb.length] = '<td class="' + this.getDepthStyle(i) + '"> </td>';
|
|
}
|
|
|
|
if (this.hasIcon) {
|
|
sb[sb.length] = '<td';
|
|
sb[sb.length] = ' id="' + this.getToggleElId() + '"';
|
|
sb[sb.length] = ' class="' + this.getStyle() + '"';
|
|
sb[sb.length] = ' onclick="javascript:' + this.getToggleLink() + '"';
|
|
if (this.hasChildren(true)) {
|
|
sb[sb.length] = ' onmouseover="this.className=';
|
|
sb[sb.length] = 'YAHOO.widget.TreeView.getNode(\'';
|
|
sb[sb.length] = this.tree.id + '\',' + this.index + ').getHoverStyle()"';
|
|
sb[sb.length] = ' onmouseout="this.className=';
|
|
sb[sb.length] = 'YAHOO.widget.TreeView.getNode(\'';
|
|
sb[sb.length] = this.tree.id + '\',' + this.index + ').getStyle()"';
|
|
}
|
|
sb[sb.length] = '> </td>';
|
|
}
|
|
|
|
sb[sb.length] = '<td';
|
|
sb[sb.length] = ' id="' + this.contentElId + '"';
|
|
sb[sb.length] = ' class="' + this.contentStyle + '"';
|
|
sb[sb.length] = ' >';
|
|
sb[sb.length] = this.html;
|
|
sb[sb.length] = '</td>';
|
|
sb[sb.length] = '</tr>';
|
|
sb[sb.length] = '</table>';
|
|
|
|
return sb.join("");
|
|
},
|
|
|
|
toString: function() {
|
|
return "HTMLNode (" + this.index + ")";
|
|
}
|
|
|
|
});
|
|
/**
|
|
* 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";
|
|
}
|
|
};
|
|
|