New feature: basic Ajax suggestion for tags and implementation of Dojo toolkit

git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@151 b3834d28-1941-0410-a4f8-b48e95affb8f

6 files changed, 793 insertions, 0 deletions

diff --git a/includes/js/dijit/_tree/Node.html b/includes/js/dijit/_tree/Node.html
new file mode 100644
index 0000000..00e49a5
--- /dev/null
+++ b/includes/js/dijit/_tree/Node.html
@@ -0,0 +1,12 @@
+<div class="dijitTreeNode" waiRole="presentation"
+	><div dojoAttachPoint="rowNode" waiRole="presentation"
+		><span dojoAttachPoint="expandoNode" class="dijitTreeExpando" waiRole="presentation"
+		></span
+		><span dojoAttachPoint="expandoNodeText" class="dijitExpandoText" waiRole="presentation"
+		></span
+		><div dojoAttachPoint="contentNode" class="dijitTreeContent" waiRole="presentation">
+			<div dojoAttachPoint="iconNode" class="dijitInline dijitTreeIcon" waiRole="presentation"></div>
+			<span dojoAttachPoint="labelNode" class="dijitTreeLabel" wairole="treeitem" tabindex="-1" waiState="selected-false" dojoAttachEvent="onfocus:_onNodeFocus"></span>
+		</div
+	></div>
+</div>
diff --git a/includes/js/dijit/_tree/Tree.html b/includes/js/dijit/_tree/Tree.html
new file mode 100644
index 0000000..9b90f4e
--- /dev/null
+++ b/includes/js/dijit/_tree/Tree.html
@@ -0,0 +1,3 @@
+<div class="dijitTreeContainer" waiRole="tree"
+	dojoAttachEvent="onclick:_onClick,onkeypress:_onKeyPress">
+</div>
diff --git a/includes/js/dijit/_tree/dndContainer.js b/includes/js/dijit/_tree/dndContainer.js
new file mode 100644
index 0000000..308e5ea
--- /dev/null
+++ b/includes/js/dijit/_tree/dndContainer.js
@@ -0,0 +1,150 @@
+if(!dojo._hasResource["dijit._tree.dndContainer"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
+dojo._hasResource["dijit._tree.dndContainer"] = true;
+dojo.provide("dijit._tree.dndContainer");
+dojo.require("dojo.dnd.common");
+dojo.require("dojo.dnd.Container");
+
+dojo.declare("dijit._tree.dndContainer",
+	null, 
+	{
+		constructor: function(tree, params){
+			// summary: a constructor of the Container
+			// tree: Node: node or node's id to build the container on
+			// params: Object: a dict of parameters, which gets mixed into the object
+			this.tree = tree;
+			this.node = tree.domNode;	// TODO: rename; it's not a TreeNode but the whole Tree
+			dojo.mixin(this, params);
+	
+			// class-specific variables
+			this.map = {};
+			this.current = null;	// current TreeNode
+	
+			// states
+			this.containerState = "";
+			dojo.addClass(this.node, "dojoDndContainer");
+			
+			// mark up children
+			if(!(params && params._skipStartup)){
+				this.startup();
+			}
+
+			// set up events
+			this.events = [
+				dojo.connect(this.node, "onmouseover", this, "onMouseOver"),
+				dojo.connect(this.node, "onmouseout",  this, "onMouseOut"),
+
+				// cancel text selection and text dragging
+				dojo.connect(this.node, "ondragstart",   dojo, "stopEvent"),
+				dojo.connect(this.node, "onselectstart", dojo, "stopEvent")
+			];
+		},
+
+
+		// abstract access to the map
+		getItem: function(/*String*/ key){
+			// summary: returns a data item by its key (id)
+			//console.log("Container getItem()", arguments,this.map, this.map[key], this.selection[key]);
+			return this.selection[key];
+			//return this.map[key];	// Object
+		},
+
+		// mouse events
+		onMouseOver: function(e){
+			// summary: event processor for onmouseover
+			// e: Event: mouse event
+
+			// handle when mouse has just moved over the Tree itself (not a TreeNode, but the Tree)
+			var rt = e.relatedTarget;	// the previous location
+			while(rt){
+				if(rt == this.node){ break; }
+				try{
+					rt = rt.parentNode;
+				}catch(x){
+					rt = null;
+				}
+			}
+			if(!rt){
+				this._changeState("Container", "Over");
+				this.onOverEvent();
+			}
+
+			// code below is for handling depending on which TreeNode we are over
+			var n = this._getChildByEvent(e);	// the TreeNode
+			if(this.current == n){ return; }
+			if(this.current){ this._removeItemClass(this.current, "Over"); }
+			if(n){ this._addItemClass(n, "Over"); }
+			this.current = n;
+		},
+
+		onMouseOut: function(e){
+			// summary: event processor for onmouseout
+			// e: Event: mouse event
+			for(var n = e.relatedTarget; n;){
+				if(n == this.node){ return; }
+				try{
+					n = n.parentNode;
+				}catch(x){
+					n = null;
+				}
+			}
+			if(this.current){
+				this._removeItemClass(this.current, "Over");
+				this.current = null;
+			}
+			this._changeState("Container", "");
+			this.onOutEvent();
+		},
+
+		_changeState: function(type, newState){
+			// summary: changes a named state to new state value
+			// type: String: a name of the state to change
+			// newState: String: new state
+			var prefix = "dojoDnd" + type;
+			var state  = type.toLowerCase() + "State";
+			//dojo.replaceClass(this.node, prefix + newState, prefix + this[state]);
+			dojo.removeClass(this.node, prefix + this[state]);
+			dojo.addClass(this.node, prefix + newState);
+			this[state] = newState;
+		},
+
+		_getChildByEvent: function(e){
+			// summary: gets a child, which is under the mouse at the moment, or null
+			// e: Event: a mouse event
+			var node = e.target;
+			if(node){
+				for(var parent = node.parentNode; parent; node = parent, parent = node.parentNode){
+					if(dojo.hasClass(node, "dijitTreeContent")){ return node; }
+				}
+			}
+			return null;
+		},
+
+		markupFactory: function(tree, params){
+			params._skipStartup = true;
+			return new dijit._tree.dndContainer(tree, params);
+		},
+
+		_addItemClass: function(node, type){
+			// summary: adds a class with prefix "dojoDndItem"
+			// node: Node: a node
+			// type: String: a variable suffix for a class name
+			dojo.addClass(node, "dojoDndItem" + type);
+		},
+
+		_removeItemClass: function(node, type){
+			// summary: removes a class with prefix "dojoDndItem"
+			// node: Node: a node
+			// type: String: a variable suffix for a class name
+			dojo.removeClass(node, "dojoDndItem" + type);
+		},
+
+		onOverEvent: function(){
+			// summary: this function is called once, when mouse is over our container
+		},
+
+		onOutEvent: function(){
+			// summary: this function is called once, when mouse is out of our container
+		}
+});
+
+}
diff --git a/includes/js/dijit/_tree/dndSelector.js b/includes/js/dijit/_tree/dndSelector.js
new file mode 100644
index 0000000..b19210f
--- /dev/null
+++ b/includes/js/dijit/_tree/dndSelector.js
@@ -0,0 +1,171 @@
+if(!dojo._hasResource["dijit._tree.dndSelector"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
+dojo._hasResource["dijit._tree.dndSelector"] = true;
+dojo.provide("dijit._tree.dndSelector");
+dojo.require("dojo.dnd.common");
+dojo.require("dijit._tree.dndContainer");
+
+dojo.declare("dijit._tree.dndSelector",
+	dijit._tree.dndContainer,
+	{
+		constructor: function(tree, params){
+			this.selection={};
+			this.anchor = null;
+			this.simpleSelection=false;
+		
+			this.events.push(
+				dojo.connect(this.tree.domNode, "onmousedown", this,"onMouseDown"),
+				dojo.connect(this.tree.domNode, "onmouseup", this,"onMouseUp")
+			);
+		},
+	
+		// object attributes (for markup)
+		singular: false,	// is singular property
+	
+		// methods
+		getSelectedItems: function(){
+			var selectedItems = []
+			for (var i in this.selection){
+				selectedItems.push(dijit.getEnclosingWidget(this.selection[i]).item);
+			}
+			return selectedItems;
+		},
+
+		getSelectedNodes: function(){
+			return this.selection;
+		},
+
+		selectNone: function(){
+			// summary: unselects all items
+			return this._removeSelection()._removeAnchor();	// self
+		},
+
+		insertItems: function(item, parent){
+			// summary: inserts new data items (see Container's insertNodes method for details)
+			
+			//we actually need to add things to the store here instead of adding noes to the tree directly		
+		},
+
+		destroy: function(){
+			// summary: prepares the object to be garbage-collected
+			dojo.dnd.Selector.superclass.destroy.call(this);
+			this.selection = this.anchor = null;
+		},
+
+		// mouse events
+		onMouseDown: function(e){
+			// summary: event processor for onmousedown
+			// e: Event: mouse event
+			if(!this.current){ return; }
+
+			var item = dijit.getEnclosingWidget(this.current).item
+			var id = this.tree.model.getIdentity(item);
+
+			if (!this.current.id) {
+				this.current.id=id;
+			}
+
+			if (!this.current.type) {
+				this.current.type="data";
+			}
+
+			if(!this.singular && !dojo.dnd.getCopyKeyState(e) && !e.shiftKey && (this.current.id in this.selection)){
+				this.simpleSelection = true;
+				dojo.stopEvent(e);
+				return;
+			}
+
+			if(this.singular){
+				if(this.anchor == this.current){
+					if(dojo.dnd.getCopyKeyState(e)){
+						this.selectNone();
+					}
+				}else{
+					this.selectNone();
+					this.anchor = this.current;
+					this._addItemClass(this.anchor, "Anchor");
+
+					this.selection[this.current.id] = this.current;
+				}
+			}else{
+				if(!this.singular && e.shiftKey){	
+					if (dojo.dnd.getCopyKeyState(e)){
+						//TODO add range to selection
+					}else{
+						//TODO select new range from anchor 
+					}
+				}else{
+					if(dojo.dnd.getCopyKeyState(e)){
+						if(this.anchor == this.current){
+							delete this.selection[this.anchor.id];
+							this._removeAnchor();
+						}else{
+							if(this.current.id in this.selection){
+								this._removeItemClass(this.current, "Selected");
+								delete this.selection[this.current.id];
+							}else{
+								if(this.anchor){
+									this._removeItemClass(this.anchor, "Anchor");
+									this._addItemClass(this.anchor, "Selected");
+								}
+								this.anchor = this.current;
+								this._addItemClass(this.current, "Anchor");
+								this.selection[this.current.id] = this.current;
+							}
+						}
+					}else{
+						var item = dijit.getEnclosingWidget(this.current).item
+						var id = this.tree.model.getIdentity(item);
+						if(!(id in this.selection)){
+							this.selectNone();
+							this.anchor = this.current;
+							this._addItemClass(this.current, "Anchor");
+							this.selection[id] = this.current;
+						}
+					}
+				}
+			}
+
+			dojo.stopEvent(e);
+		},
+
+		onMouseMove: function() {
+
+		},
+
+		onOverEvent: function() {
+			this.onmousemoveEvent = dojo.connect(this.node, "onmousemove", this, "onMouseMove");
+		},
+
+		onMouseUp: function(e){
+			// summary: event processor for onmouseup
+			// e: Event: mouse event
+			if(!this.simpleSelection){ return; }
+			this.simpleSelection = false;
+			this.selectNone();
+			if(this.current){
+				this.anchor = this.current;
+				this._addItemClass(this.anchor, "Anchor");
+				this.selection[this.current.id] = this.current;
+			}
+		},
+		_removeSelection: function(){
+			// summary: unselects all items
+			var e = dojo.dnd._empty;
+			for(var i in this.selection){
+				if(i in e){ continue; }
+				var node = dojo.byId(i);
+				if(node){ this._removeItemClass(node, "Selected"); }
+			}
+			this.selection = {};
+			return this;	// self
+		},
+		_removeAnchor: function(){
+			if(this.anchor){
+				this._removeItemClass(this.anchor, "Anchor");
+				this.anchor = null;
+			}
+			return this;	// self
+		}
+});
+
+}
diff --git a/includes/js/dijit/_tree/dndSource.js b/includes/js/dijit/_tree/dndSource.js
new file mode 100644
index 0000000..ccb91ad
--- /dev/null
+++ b/includes/js/dijit/_tree/dndSource.js
@@ -0,0 +1,373 @@
+if(!dojo._hasResource["dijit._tree.dndSource"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
+dojo._hasResource["dijit._tree.dndSource"] = true;
+dojo.provide("dijit._tree.dndSource");
+
+dojo.require("dijit._tree.dndSelector");
+dojo.require("dojo.dnd.Manager");
+
+dojo.declare("dijit._tree.dndSource", dijit._tree.dndSelector, {
+	// summary: a Source object, which can be used as a DnD source, or a DnD target
+	
+	// object attributes (for markup)
+	isSource: true,
+	copyOnly: false,
+	skipForm: false,
+	accept: ["text"],
+	
+	constructor: function(tree, params){
+		// summary: a constructor of the Source
+		// tree: dijit.Tree: the tree widget to build the source on
+		// params: Object: a dict of parameters, recognized parameters are:
+		//	isSource: Boolean: can be used as a DnD source, if true; assumed to be "true" if omitted
+		//	accept: Array: list of accepted types (text strings) for a target; assumed to be ["text"] if omitted
+		//	horizontal: Boolean: a horizontal container, if true, vertical otherwise or when omitted
+		//	copyOnly: Boolean: always copy items, if true, use a state of Ctrl key otherwise
+		//	skipForm: Boolean: don't start the drag operation, if clicked on form elements
+		//	the rest of parameters are passed to the selector
+		if(!params){ params = {}; }
+		dojo.mixin(this, params);
+		this.isSource = typeof params.isSource == "undefined" ? true : params.isSource;
+		var type = params.accept instanceof Array ? params.accept : ["text"];
+		this.accept = null;
+		if(type.length){
+			this.accept = {};
+			for(var i = 0; i < type.length; ++i){
+				this.accept[type[i]] = 1;
+			}
+		}
+
+		// class-specific variables
+		this.isDragging = false;
+		this.mouseDown = false;
+		this.targetAnchor = null;
+		this.targetBox = null;
+		this.before = true;
+
+		// states
+		this.sourceState  = "";
+		if(this.isSource){
+			dojo.addClass(this.node, "dojoDndSource");
+		}
+		this.targetState  = "";
+		if(this.accept){
+			dojo.addClass(this.node, "dojoDndTarget");
+		}
+		if(this.horizontal){
+			dojo.addClass(this.node, "dojoDndHorizontal");
+		}
+		// set up events
+		this.topics = [
+			dojo.subscribe("/dnd/source/over", this, "onDndSourceOver"),
+			dojo.subscribe("/dnd/start",  this, "onDndStart"),
+			dojo.subscribe("/dnd/drop",   this, "onDndDrop"),
+			dojo.subscribe("/dnd/cancel", this, "onDndCancel")
+		];
+	},
+
+	startup: function(){
+	},
+	
+	// methods
+	checkAcceptance: function(source, nodes){
+		// summary: checks, if the target can accept nodes from this source
+		// source: Object: the source which provides items
+		// nodes: Array: the list of transferred items
+		return true;	// Boolean
+	},
+	copyState: function(keyPressed){
+		// summary: Returns true, if we need to copy items, false to move.
+		//		It is separated to be overwritten dynamically, if needed.
+		// keyPressed: Boolean: the "copy" was pressed
+		return this.copyOnly || keyPressed;	// Boolean
+	},
+	destroy: function(){
+		// summary: prepares the object to be garbage-collected
+		this.inherited("destroy",arguments);
+		dojo.forEach(this.topics, dojo.unsubscribe);
+		this.targetAnchor = null;
+	},
+
+	// markup methods
+	markupFactory: function(params, node){
+		params._skipStartup = true;
+		return new dijit._tree.dndSource(node, params);
+	},
+
+	// mouse event processors
+	onMouseMove: function(e){
+		// summary: event processor for onmousemove
+		// e: Event: mouse event
+		if(this.isDragging && this.targetState == "Disabled"){ return; }
+		this.inherited("onMouseMove", arguments);
+		var m = dojo.dnd.manager();
+		if(this.isDragging){
+			// calculate before/after
+
+			if (this.allowBetween){ // not implemented yet for tree since it has no concept of order
+				var before = false;
+				if(this.current){
+					if(!this.targetBox || this.targetAnchor != this.current){
+						this.targetBox = {
+							xy: dojo.coords(this.current, true),
+							w: this.current.offsetWidth,
+							h: this.current.offsetHeight
+						};
+					}
+					if(this.horizontal){
+						before = (e.pageX - this.targetBox.xy.x) < (this.targetBox.w / 2);
+					}else{
+						before = (e.pageY - this.targetBox.xy.y) < (this.targetBox.h / 2);
+					}
+				}
+				if(this.current != this.targetAnchor || before != this.before){
+					this._markTargetAnchor(before);
+					m.canDrop(!this.current || m.source != this || !(this.current.id in this.selection));
+				}
+			}
+		}else{
+			if(this.mouseDown && this.isSource){
+				var n = this.getSelectedNodes();
+				var nodes=[];
+				for (var i in n){
+					nodes.push(n[i]);
+				}
+				if(nodes.length){
+					m.startDrag(this, nodes, this.copyState(dojo.dnd.getCopyKeyState(e)));
+				}
+			}
+		}
+	},
+
+	onMouseDown: function(e){
+		// summary: event processor for onmousedown
+		// e: Event: mouse event
+		this.mouseDown = true;
+		this.mouseButton = e.button;
+		this.inherited("onMouseDown",arguments);
+	},
+
+	onMouseUp: function(e){
+		// summary: event processor for onmouseup
+		// e: Event: mouse event
+		if(this.mouseDown){
+			this.mouseDown = false;
+			this.inherited("onMouseUp",arguments);
+		}
+	},
+
+	onMouseOver: function(e){
+		// summary: event processor for onmouseover
+		// e: Event: mouse event
+
+		// handle when mouse has just moved over the Tree itself (not a TreeNode, but the Tree)
+		var rt = e.relatedTarget;	// the previous location
+		while(rt){
+			if(rt == this.node){ break; }
+			try{
+				rt = rt.parentNode;
+			}catch(x){
+				rt = null;
+			}
+		}
+		if(!rt){
+			this._changeState("Container", "Over");
+			this.onOverEvent();
+		}
+
+		// code below is for handling depending on which TreeNode we are over
+		var n = this._getChildByEvent(e);	// the TreeNode
+		if(this.current == n){ return; }
+		if(this.current){ this._removeItemClass(this.current, "Over"); }
+		var m = dojo.dnd.manager();
+		if(n){ 
+			this._addItemClass(n, "Over"); 
+			if(this.isDragging){
+				if(this.checkItemAcceptance(n,m.source)){
+					m.canDrop(this.targetState != "Disabled" && (!this.current || m.source != this || !(n in this.selection)));
+				}else{
+					m.canDrop(false);
+				}
+			}
+		}else{
+			if(this.isDragging){
+				if (m.source && this.checkAcceptance(m.source,m.source.getSelectedNodes())){
+					m.canDrop(this.targetState != "Disabled" && (!this.current || m.source != this || !(this.current.id in this.selection)));
+				}else{
+					m.canDrop(false);
+				}
+			}
+		}
+		this.current = n;
+	},
+
+	checkItemAcceptance: function(node, source){
+		// summary: stub funciton to be overridden if one wants to check for the ability to drop at the node/item level 
+		return true;	
+	},
+	
+	// topic event processors
+	onDndSourceOver: function(source){
+		// summary: topic event processor for /dnd/source/over, called when detected a current source
+		// source: Object: the source which has the mouse over it
+		if(this != source){
+			this.mouseDown = false;
+			if(this.targetAnchor){
+				this._unmarkTargetAnchor();
+			}
+		}else if(this.isDragging){
+			var m = dojo.dnd.manager();
+			m.canDrop(this.targetState != "Disabled" && (!this.current || m.source != this || !(this.current.id in this.selection)));
+		}
+	},
+	onDndStart: function(source, nodes, copy){
+		// summary: topic event processor for /dnd/start, called to initiate the DnD operation
+		// source: Object: the source which provides items
+		// nodes: Array: the list of transferred items
+		// copy: Boolean: copy items, if true, move items otherwise
+
+		if(this.isSource){
+			this._changeState("Source", this == source ? (copy ? "Copied" : "Moved") : "");
+		}
+		var accepted = this.checkAcceptance(source, nodes);
+
+		this._changeState("Target", accepted ? "" : "Disabled");
+
+		if(accepted){
+			dojo.dnd.manager().overSource(this);
+		}
+
+		this.isDragging = true;
+	},
+
+	itemCreator: function(nodes){
+		return dojo.map(nodes, function(node){
+			return {
+				"id": node.id,
+				"name": node.textContent || node.innerText || ""
+			};
+		});
+	},
+
+	onDndDrop: function(source, nodes, copy){
+		// summary:
+		//		Topic event processor for /dnd/drop, called to finish the DnD operation..
+		//		Updates data store items according to where node was dragged from and dropped
+		//		to.   The tree will then respond to those data store updates and redraw itself.
+		// source: Object: the source which provides items
+		// nodes: Array: the list of transferred items
+		// copy: Boolean: copy items, if true, move items otherwise
+
+		if(this.containerState == "Over"){
+			var tree = this.tree,
+				model = tree.model,
+				target = this.current,
+				requeryRoot = false;	// set to true iff top level items change
+
+			this.isDragging = false;
+
+			// Compute the new parent item
+			var targetWidget = dijit.getEnclosingWidget(target),
+				newParentItem = (targetWidget && targetWidget.item) || tree.item;
+
+			// If we are dragging from another source (or at least, another source
+			// that points to a different data store), then we need to make new data
+			// store items for each element in nodes[].  This call get the parameters
+			// to pass to store.newItem()
+			var newItemsParams;
+			if(source != this){
+				newItemsParams = this.itemCreator(nodes, target);
+			}
+
+			dojo.forEach(nodes, function(node, idx){
+				if(source == this){
+					// This is a node from my own tree, and we are moving it, not copying.
+					// Remove item from old parent's children attribute.
+					// TODO: dijit._tree.dndSelector should implement deleteSelectedNodes()
+					// and this code should go there.
+					var childTreeNode = dijit.getEnclosingWidget(node),
+						childItem = childTreeNode.item,
+						oldParentItem = childTreeNode.getParent().item;
+
+					model.pasteItem(childItem, oldParentItem, newParentItem, copy);
+				}else{
+					model.newItem(newItemsParams[idx], newParentItem);
+				}
+			}, this);
+
+			// Expand the target node (if it's currently collapsed) so the user can see
+			// where their node was dropped.   In particular since that node is still selected.
+			this.tree._expandNode(targetWidget);
+		}
+		this.onDndCancel();
+	},
+	onDndCancel: function(){
+		// summary: topic event processor for /dnd/cancel, called to cancel the DnD operation
+		if(this.targetAnchor){
+			this._unmarkTargetAnchor();
+			this.targetAnchor = null;
+		}
+		this.before = true;
+		this.isDragging = false;
+		this.mouseDown = false;
+		delete this.mouseButton;
+		this._changeState("Source", "");
+		this._changeState("Target", "");
+	},
+	
+	// utilities
+
+	onOverEvent: function(){
+		// summary: this function is called once, when mouse is over our container
+		this.inherited("onOverEvent",arguments);
+		dojo.dnd.manager().overSource(this);
+	},
+	onOutEvent: function(){
+		// summary: this function is called once, when mouse is out of our container
+		this.inherited("onOutEvent",arguments);	
+		dojo.dnd.manager().outSource(this);
+	},
+	_markTargetAnchor: function(before){
+		// summary: assigns a class to the current target anchor based on "before" status
+		// before: Boolean: insert before, if true, after otherwise
+		if(this.current == this.targetAnchor && this.before == before){ return; }
+		if(this.targetAnchor){
+			this._removeItemClass(this.targetAnchor, this.before ? "Before" : "After");
+		}
+		this.targetAnchor = this.current;
+		this.targetBox = null;
+		this.before = before;
+		if(this.targetAnchor){
+			this._addItemClass(this.targetAnchor, this.before ? "Before" : "After");
+		}
+	},
+	_unmarkTargetAnchor: function(){
+		// summary: removes a class of the current target anchor based on "before" status
+		if(!this.targetAnchor){ return; }
+		this._removeItemClass(this.targetAnchor, this.before ? "Before" : "After");
+		this.targetAnchor = null;
+		this.targetBox = null;
+		this.before = true;
+	},
+	_markDndStatus: function(copy){
+		// summary: changes source's state based on "copy" status
+		this._changeState("Source", copy ? "Copied" : "Moved");
+	}
+});
+
+dojo.declare("dijit._tree.dndTarget", dijit._tree.dndSource, {
+	// summary: a Target object, which can be used as a DnD target
+	
+	constructor: function(node, params){
+		// summary: a constructor of the Target --- see the Source constructor for details
+		this.isSource = false;
+		dojo.removeClass(this.node, "dojoDndSource");
+	},
+
+	// markup methods
+	markupFactory: function(params, node){
+		params._skipStartup = true;
+		return new dijit._tree.dndTarget(node, params);
+	}
+});
+
+}
diff --git a/includes/js/dijit/_tree/model.js b/includes/js/dijit/_tree/model.js
new file mode 100644
index 0000000..5ef4ac1
--- /dev/null
+++ b/includes/js/dijit/_tree/model.js
@@ -0,0 +1,84 @@
+
+dojo.declare(
+	"dijit.tree.model",
+	null,
+{
+	// summary
+	//		Contract for any data provider object for the tree.  Tree 
+	//		passes in values to the constructor to specify the callbacks.
+	//		"item" is typically a dojo.data.Item but it's just a black box so
+	//		it could be anything.
+	//
+	//		This (like dojo.data.api.Read) is just documentation, and not meant to be used.
+	
+	destroy: function(){
+		// summary: destroys this object, releasing connections to the store
+	},
+	
+	// =======================================================================
+	// Methods for traversing hierarchy
+	
+	getRoot: function(onItem){
+		// summary:
+		//		Calls onItem with the root item for the tree, possibly a fabricated item.
+		//		Throws exception on error.
+	},
+	
+	mayHaveChildren: function(/*dojo.data.Item*/ item){
+		// summary
+		//		Tells if an item has or may have children.  Implementing logic here
+		//		avoids showing +/- expando icon for nodes that we know don't have children.
+		//		(For efficiency reasons we may not want to check if an element actually
+		//		has children until user clicks the expando node)
+	},
+	
+	getChildren: function(/*dojo.data.Item*/ parentItem, /*function(items)*/ onComplete){
+		// summary
+		// 		Calls onComplete() with array of child items of given parent item, all loaded.
+		//		Throws exception on error.
+	},
+	
+	// =======================================================================
+	// Inspecting items
+	
+	getIdentity: function(/* item */ item){
+		// summary: returns identity for an item
+	},
+	
+	getLabel: function(/*dojo.data.Item*/ item){
+		// summary: get the label for an item
+	},
+	
+	// =======================================================================
+	// Write interface
+	
+	newItem: function(/* Object? */ args, /*Item?*/ parent){
+		// summary
+		//		Creates a new item.   See dojo.data.api.Write for details on args.
+	},
+	
+	pasteItem: function(/*Item*/ childItem, /*Item*/ oldParentItem, /*Item*/ newParentItem, /*Boolean*/ bCopy){
+		// summary
+		//		Move or copy an item from one parent item to another.
+		//		Used in drag & drop.
+		//		If oldParentItem is specified and bCopy is false, childItem is removed from oldParentItem.
+		//		If newParentItem is specified, childItem is attached to newParentItem.
+	},
+	
+	// =======================================================================
+	// Callbacks
+	
+	onChange: function(/*dojo.data.Item*/ item){
+		// summary
+		//		Callback whenever an item has changed, so that Tree
+		//		can update the label, icon, etc.   Note that changes
+		//		to an item's children or parent(s) will trigger an
+		//		onChildrenChange() so you can ignore those changes here.
+	},
+	
+	onChildrenChange: function(/*dojo.data.Item*/ parent, /*dojo.data.Item[]*/ newChildrenList){
+		// summary
+		//		Callback to do notifications about new, updated, or deleted items.
+	}
+});
+