www.gusucode.com > 一个基于extjs的强大聊天插件源码程序 > 一个基于extjs的强大聊天插件/extjame/ext-jame/js/ext2/source/widgets/tree/TreePanel.js
/*
* Ext JS Library 2.0.2
* Copyright(c) 2006-2008, Ext JS, LLC.
* licensing@extjs.com
*
* http://extjs.com/license
*/
/**
* @class Ext.tree.TreePanel
* <p>The TreePanel provides tree-structured UI representation of tree-structured data.</p>
* <p>{@link Ext.tree.TreeNode TreeNode}s added to the TreePanel may each contain metadata
* used by your application in their {@link Ext.tree.TreeNode#attributes attributes} property.</p>
* <p><b>A TreePanel must have a {@link #root} node before it is rendered.</b> This may either be
* specified using the {@link #root} config option, or using the {@link #setRootNode} method.
* @extends Ext.Panel
* @cfg {Ext.tree.TreeNode} root The root node for the tree.
* @cfg {Boolean} rootVisible false to hide the root node (defaults to true)
* @cfg {Boolean} lines false to disable tree lines (defaults to true)
* @cfg {Boolean} enableDD true to enable drag and drop
* @cfg {Boolean} enableDrag true to enable just drag
* @cfg {Boolean} enableDrop true to enable just drop
* @cfg {Object} dragConfig Custom config to pass to the {@link Ext.tree.TreeDragZone} instance
* @cfg {Object} dropConfig Custom config to pass to the {@link Ext.tree.TreeDropZone} instance
* @cfg {String} ddGroup The DD group this TreePanel belongs to
* @cfg {String} ddAppendOnly True if the tree should only allow append drops (use for trees which are sorted)
* @cfg {Boolean} ddScroll true to enable body scrolling
* @cfg {Boolean} containerScroll true to register this container with ScrollManager
* @cfg {Boolean} hlDrop false to disable node highlight on drop (defaults to the value of Ext.enableFx)
* @cfg {String} hlColor The color of the node highlight (defaults to C3DAF9)
* @cfg {Boolean} animate true to enable animated expand/collapse (defaults to the value of Ext.enableFx)
* @cfg {Boolean} singleExpand true if only 1 node per branch may be expanded
* @cfg {Boolean} selModel A tree selection model to use with this TreePanel (defaults to a {@link Ext.tree.DefaultSelectionModel})
* @cfg {Boolean} trackMouseOver False to disable mouse over highlighting
* @cfg {Ext.tree.TreeLoader} loader A {@link Ext.tree.TreeLoader} for use with this TreePanel
* @cfg {String} pathSeparator The token used to separate sub-paths in path strings (defaults to '/')
* @cfg {Boolean} useArrows True to use Vista-style arrows in the tree (defaults to false)
*
* @constructor
* @param {Object} config
*/
Ext.tree.TreePanel = Ext.extend(Ext.Panel, {
rootVisible : true,
animate: Ext.enableFx,
lines : true,
enableDD : false,
hlDrop : Ext.enableFx,
pathSeparator: "/",
initComponent : function(){
Ext.tree.TreePanel.superclass.initComponent.call(this);
if(!this.eventModel){
this.eventModel = new Ext.tree.TreeEventModel(this);
}
this.nodeHash = {};
/**
* The root node of this tree.
* @type Ext.tree.TreeNode
* @property root
*/
if(this.root){
this.setRootNode(this.root);
}
this.addEvents(
/**
* @event append
* Fires when a new child node is appended to a node in this tree.
* @param {Tree} tree The owner tree
* @param {Node} parent The parent node
* @param {Node} node The newly appended node
* @param {Number} index The index of the newly appended node
*/
"append",
/**
* @event remove
* Fires when a child node is removed from a node in this tree.
* @param {Tree} tree The owner tree
* @param {Node} parent The parent node
* @param {Node} node The child node removed
*/
"remove",
/**
* @event movenode
* Fires when a node is moved to a new location in the tree
* @param {Tree} tree The owner tree
* @param {Node} node The node moved
* @param {Node} oldParent The old parent of this node
* @param {Node} newParent The new parent of this node
* @param {Number} index The index it was moved to
*/
"movenode",
/**
* @event insert
* Fires when a new child node is inserted in a node in this tree.
* @param {Tree} tree The owner tree
* @param {Node} parent The parent node
* @param {Node} node The child node inserted
* @param {Node} refNode The child node the node was inserted before
*/
"insert",
/**
* @event beforeappend
* Fires before a new child is appended to a node in this tree, return false to cancel the append.
* @param {Tree} tree The owner tree
* @param {Node} parent The parent node
* @param {Node} node The child node to be appended
*/
"beforeappend",
/**
* @event beforeremove
* Fires before a child is removed from a node in this tree, return false to cancel the remove.
* @param {Tree} tree The owner tree
* @param {Node} parent The parent node
* @param {Node} node The child node to be removed
*/
"beforeremove",
/**
* @event beforemovenode
* Fires before a node is moved to a new location in the tree. Return false to cancel the move.
* @param {Tree} tree The owner tree
* @param {Node} node The node being moved
* @param {Node} oldParent The parent of the node
* @param {Node} newParent The new parent the node is moving to
* @param {Number} index The index it is being moved to
*/
"beforemovenode",
/**
* @event beforeinsert
* Fires before a new child is inserted in a node in this tree, return false to cancel the insert.
* @param {Tree} tree The owner tree
* @param {Node} parent The parent node
* @param {Node} node The child node to be inserted
* @param {Node} refNode The child node the node is being inserted before
*/
"beforeinsert",
/**
* @event beforeload
* Fires before a node is loaded, return false to cancel
* @param {Node} node The node being loaded
*/
"beforeload",
/**
* @event load
* Fires when a node is loaded
* @param {Node} node The node that was loaded
*/
"load",
/**
* @event textchange
* Fires when the text for a node is changed
* @param {Node} node The node
* @param {String} text The new text
* @param {String} oldText The old text
*/
"textchange",
/**
* @event beforeexpandnode
* Fires before a node is expanded, return false to cancel.
* @param {Node} node The node
* @param {Boolean} deep
* @param {Boolean} anim
*/
"beforeexpandnode",
/**
* @event beforecollapsenode
* Fires before a node is collapsed, return false to cancel.
* @param {Node} node The node
* @param {Boolean} deep
* @param {Boolean} anim
*/
"beforecollapsenode",
/**
* @event expandnode
* Fires when a node is expanded
* @param {Node} node The node
*/
"expandnode",
/**
* @event disabledchange
* Fires when the disabled status of a node changes
* @param {Node} node The node
* @param {Boolean} disabled
*/
"disabledchange",
/**
* @event collapsenode
* Fires when a node is collapsed
* @param {Node} node The node
*/
"collapsenode",
/**
* @event beforeclick
* Fires before click processing on a node. Return false to cancel the default action.
* @param {Node} node The node
* @param {Ext.EventObject} e The event object
*/
"beforeclick",
/**
* @event click
* Fires when a node is clicked
* @param {Node} node The node
* @param {Ext.EventObject} e The event object
*/
"click",
/**
* @event checkchange
* Fires when a node with a checkbox's checked property changes
* @param {Node} this This node
* @param {Boolean} checked
*/
"checkchange",
/**
* @event dblclick
* Fires when a node is double clicked
* @param {Node} node The node
* @param {Ext.EventObject} e The event object
*/
"dblclick",
/**
* @event contextmenu
* Fires when a node is right clicked
* @param {Node} node The node
* @param {Ext.EventObject} e The event object
*/
"contextmenu",
/**
* @event beforechildrenrendered
* Fires right before the child nodes for a node are rendered
* @param {Node} node The node
*/
"beforechildrenrendered",
/**
* @event startdrag
* Fires when a node starts being dragged
* @param {Ext.tree.TreePanel} this
* @param {Ext.tree.TreeNode} node
* @param {event} e The raw browser event
*/
"startdrag",
/**
* @event enddrag
* Fires when a drag operation is complete
* @param {Ext.tree.TreePanel} this
* @param {Ext.tree.TreeNode} node
* @param {event} e The raw browser event
*/
"enddrag",
/**
* @event dragdrop
* Fires when a dragged node is dropped on a valid DD target
* @param {Ext.tree.TreePanel} this
* @param {Ext.tree.TreeNode} node
* @param {DD} dd The dd it was dropped on
* @param {event} e The raw browser event
*/
"dragdrop",
/**
* @event beforenodedrop
* Fires when a DD object is dropped on a node in this tree for preprocessing. Return false to cancel the drop. The dropEvent
* passed to handlers has the following properties:<br />
* <ul style="padding:5px;padding-left:16px;">
* <li>tree - The TreePanel</li>
* <li>target - The node being targeted for the drop</li>
* <li>data - The drag data from the drag source</li>
* <li>point - The point of the drop - append, above or below</li>
* <li>source - The drag source</li>
* <li>rawEvent - Raw mouse event</li>
* <li>dropNode - Drop node(s) provided by the source <b>OR</b> you can supply node(s)
* to be inserted by setting them on this object.</li>
* <li>cancel - Set this to true to cancel the drop.</li>
* <li>dropStatus - If the default drop action is cancelled but the drop is valid, setting this to true
* will prevent the animated "repair" from appearing.</li>
* </ul>
* @param {Object} dropEvent
*/
"beforenodedrop",
/**
* @event nodedrop
* Fires after a DD object is dropped on a node in this tree. The dropEvent
* passed to handlers has the following properties:<br />
* <ul style="padding:5px;padding-left:16px;">
* <li>tree - The TreePanel</li>
* <li>target - The node being targeted for the drop</li>
* <li>data - The drag data from the drag source</li>
* <li>point - The point of the drop - append, above or below</li>
* <li>source - The drag source</li>
* <li>rawEvent - Raw mouse event</li>
* <li>dropNode - Dropped node(s).</li>
* </ul>
* @param {Object} dropEvent
*/
"nodedrop",
/**
* @event nodedragover
* Fires when a tree node is being targeted for a drag drop, return false to signal drop not allowed. The dragOverEvent
* passed to handlers has the following properties:<br />
* <ul style="padding:5px;padding-left:16px;">
* <li>tree - The TreePanel</li>
* <li>target - The node being targeted for the drop</li>
* <li>data - The drag data from the drag source</li>
* <li>point - The point of the drop - append, above or below</li>
* <li>source - The drag source</li>
* <li>rawEvent - Raw mouse event</li>
* <li>dropNode - Drop node(s) provided by the source.</li>
* <li>cancel - Set this to true to signal drop not allowed.</li>
* </ul>
* @param {Object} dragOverEvent
*/
"nodedragover"
);
if(this.singleExpand){
this.on("beforeexpandnode", this.restrictExpand, this);
}
},
// private
proxyNodeEvent : function(ename, a1, a2, a3, a4, a5, a6){
if(ename == 'collapse' || ename == 'expand' || ename == 'beforecollapse' || ename == 'beforeexpand' || ename == 'move' || ename == 'beforemove'){
ename = ename+'node';
}
// args inline for performance while bubbling events
return this.fireEvent(ename, a1, a2, a3, a4, a5, a6);
},
/**
* Returns this root node for this tree
* @return {Node}
*/
getRootNode : function(){
return this.root;
},
/**
* Sets the root node for this tree during initialization.
* @param {Node} node
* @return {Node}
*/
setRootNode : function(node){
this.root = node;
node.ownerTree = this;
node.isRoot = true;
this.registerNode(node);
if(!this.rootVisible){
var uiP = node.attributes.uiProvider;
node.ui = uiP ? new uiP(node) : new Ext.tree.RootTreeNodeUI(node);
}
return node;
},
/**
* Gets a node in this tree by its id
* @param {String} id
* @return {Node}
*/
getNodeById : function(id){
return this.nodeHash[id];
},
// private
registerNode : function(node){
this.nodeHash[node.id] = node;
},
// private
unregisterNode : function(node){
delete this.nodeHash[node.id];
},
// private
toString : function(){
return "[Tree"+(this.id?" "+this.id:"")+"]";
},
// private
restrictExpand : function(node){
var p = node.parentNode;
if(p){
if(p.expandedChild && p.expandedChild.parentNode == p){
p.expandedChild.collapse();
}
p.expandedChild = node;
}
},
/**
* Retrieve an array of checked nodes, or an array of a specific attribute of checked nodes (e.g. "id")
* @param {String} attribute (optional) Defaults to null (return the actual nodes)
* @param {TreeNode} startNode (optional) The node to start from, defaults to the root
* @return {Array}
*/
getChecked : function(a, startNode){
startNode = startNode || this.root;
var r = [];
var f = function(){
if(this.attributes.checked){
r.push(!a ? this : (a == 'id' ? this.id : this.attributes[a]));
}
}
startNode.cascade(f);
return r;
},
/**
* Returns the container element for this TreePanel.
* @return {Element} The container element for this TreePanel.
*/
getEl : function(){
return this.el;
},
/**
* Returns the default {@link Ext.tree.TreeLoader} for this TreePanel.
* @return {Ext.tree.TreeLoader} The TreeLoader for this TreePanel.
*/
getLoader : function(){
return this.loader;
},
/**
* Expand all nodes
*/
expandAll : function(){
this.root.expand(true);
},
/**
* Collapse all nodes
*/
collapseAll : function(){
this.root.collapse(true);
},
/**
* Returns the selection model used by this TreePanel.
* @return {TreeSelectionModel} The selection model used by this TreePanel
*/
getSelectionModel : function(){
if(!this.selModel){
this.selModel = new Ext.tree.DefaultSelectionModel();
}
return this.selModel;
},
/**
* Expands a specified path in this TreePanel. A path can be retrieved from a node with {@link Ext.data.Node#getPath}
* @param {String} path
* @param {String} attr (optional) The attribute used in the path (see {@link Ext.data.Node#getPath} for more info)
* @param {Function} callback (optional) The callback to call when the expand is complete. The callback will be called with
* (bSuccess, oLastNode) where bSuccess is if the expand was successful and oLastNode is the last node that was expanded.
*/
expandPath : function(path, attr, callback){
attr = attr || "id";
var keys = path.split(this.pathSeparator);
var curNode = this.root;
if(curNode.attributes[attr] != keys[1]){ // invalid root
if(callback){
callback(false, null);
}
return;
}
var index = 1;
var f = function(){
if(++index == keys.length){
if(callback){
callback(true, curNode);
}
return;
}
var c = curNode.findChild(attr, keys[index]);
if(!c){
if(callback){
callback(false, curNode);
}
return;
}
curNode = c;
c.expand(false, false, f);
};
curNode.expand(false, false, f);
},
/**
* Selects the node in this tree at the specified path. A path can be retrieved from a node with {@link Ext.data.Node#getPath}
* @param {String} path
* @param {String} attr (optional) The attribute used in the path (see {@link Ext.data.Node#getPath} for more info)
* @param {Function} callback (optional) The callback to call when the selection is complete. The callback will be called with
* (bSuccess, oSelNode) where bSuccess is if the selection was successful and oSelNode is the selected node.
*/
selectPath : function(path, attr, callback){
attr = attr || "id";
var keys = path.split(this.pathSeparator);
var v = keys.pop();
if(keys.length > 0){
var f = function(success, node){
if(success && node){
var n = node.findChild(attr, v);
if(n){
n.select();
if(callback){
callback(true, n);
}
}else if(callback){
callback(false, n);
}
}else{
if(callback){
callback(false, n);
}
}
};
this.expandPath(keys.join(this.pathSeparator), attr, f);
}else{
this.root.select();
if(callback){
callback(true, this.root);
}
}
},
/**
* Returns the underlying Element for this tree
* @return {Ext.Element} The Element
*/
getTreeEl : function(){
return this.body;
},
// private
onRender : function(ct, position){
Ext.tree.TreePanel.superclass.onRender.call(this, ct, position);
this.el.addClass('x-tree');
this.innerCt = this.body.createChild({tag:"ul",
cls:"x-tree-root-ct " +
(this.useArrows ? 'x-tree-arrows' : this.lines ? "x-tree-lines" : "x-tree-no-lines")});
},
// private
initEvents : function(){
Ext.tree.TreePanel.superclass.initEvents.call(this);
if(this.containerScroll){
Ext.dd.ScrollManager.register(this.body);
}
if((this.enableDD || this.enableDrop) && !this.dropZone){
/**
* The dropZone used by this tree if drop is enabled
* @type Ext.tree.TreeDropZone
*/
this.dropZone = new Ext.tree.TreeDropZone(this, this.dropConfig || {
ddGroup: this.ddGroup || "TreeDD", appendOnly: this.ddAppendOnly === true
});
}
if((this.enableDD || this.enableDrag) && !this.dragZone){
/**
* The dragZone used by this tree if drag is enabled
* @type Ext.tree.TreeDragZone
*/
this.dragZone = new Ext.tree.TreeDragZone(this, this.dragConfig || {
ddGroup: this.ddGroup || "TreeDD",
scroll: this.ddScroll
});
}
this.getSelectionModel().init(this);
},
// private
afterRender : function(){
Ext.tree.TreePanel.superclass.afterRender.call(this);
this.root.render();
if(!this.rootVisible){
this.root.renderChildren();
}
},
onDestroy : function(){
if(this.rendered){
this.body.removeAllListeners();
Ext.dd.ScrollManager.unregister(this.body);
if(this.dropZone){
this.dropZone.unreg();
}
if(this.dragZone){
this.dragZone.unreg();
}
}
this.root.destroy();
this.nodeHash = null;
Ext.tree.TreePanel.superclass.onDestroy.call(this);
}
/**
* @cfg {String/Number} activeItem
* @hide
*/
/**
* @cfg {Boolean} autoDestroy
* @hide
*/
/**
* @cfg {Object/String/Function} autoLoad
* @hide
*/
/**
* @cfg {Boolean} autoWidth
* @hide
*/
/**
* @cfg {Boolean/Number} bufferResize
* @hide
*/
/**
* @cfg {String} defaultType
* @hide
*/
/**
* @cfg {Object} defaults
* @hide
*/
/**
* @cfg {Boolean} hideBorders
* @hide
*/
/**
* @cfg {Mixed} items
* @hide
*/
/**
* @cfg {String} layout
* @hide
*/
/**
* @cfg {Object} layoutConfig
* @hide
*/
/**
* @cfg {Boolean} monitorResize
* @hide
*/
/**
* @property items
* @hide
*/
/**
* @method add
* @hide
*/
/**
* @method cascade
* @hide
*/
/**
* @method doLayout
* @hide
*/
/**
* @method find
* @hide
*/
/**
* @method findBy
* @hide
*/
/**
* @method findById
* @hide
*/
/**
* @method findByType
* @hide
*/
/**
* @method getComponent
* @hide
*/
/**
* @method getLayout
* @hide
*/
/**
* @method getUpdater
* @hide
*/
/**
* @method insert
* @hide
*/
/**
* @method load
* @hide
*/
/**
* @method remove
* @hide
*/
/**
* @event add
* @hide
*/
/**
* @event afterLayout
* @hide
*/
/**
* @event beforeadd
* @hide
*/
/**
* @event beforeremove
* @hide
*/
/**
* @event remove
* @hide
*/
/**
* @cfg {String} allowDomMove @hide
*/
/**
* @cfg {String} autoEl @hide
*/
/**
* @cfg {String} applyTo @hide
*/
/**
* @cfg {String} contentEl @hide
*/
/**
* @cfg {String} disabledClass @hide
*/
/**
* @cfg {String} elements @hide
*/
/**
* @cfg {String} html @hide
*/
/**
* @property disabled
* @hide
*/
/**
* @method applyToMarkup
* @hide
*/
/**
* @method enable
* @hide
*/
/**
* @method disable
* @hide
*/
/**
* @method setDisabled
* @hide
*/
});
Ext.reg('treepanel', Ext.tree.TreePanel);