-if(!dojo._hasResource["dijit.Tree"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
-dojo._hasResource["dijit.Tree"] = true;
-dojo.provide("dijit.Tree");
-
-dojo.require("dojo.fx");
-
-dojo.require("dijit._Widget");
-dojo.require("dijit._Templated");
-dojo.require("dijit._Container");
-dojo.require("dojo.cookie");
-
-dojo.declare(
- "dijit._TreeNode",
- [dijit._Widget, dijit._Templated, dijit._Container, dijit._Contained],
-{
- // summary
- // Single node within a tree
-
- // item: dojo.data.Item
- // the dojo.data entry this tree represents
- item: null,
-
- isTreeNode: true,
-
- // label: String
- // Text of this tree node
- label: "",
-
- isExpandable: null, // show expando node
-
- isExpanded: false,
-
- // state: String
- // dynamic loading-related stuff.
- // When an empty folder node appears, it is "UNCHECKED" first,
- // then after dojo.data query it becomes "LOADING" and, finally "LOADED"
- state: "UNCHECKED",
-
- templateString:"<div class=\"dijitTreeNode\" waiRole=\"presentation\"\n\t><div dojoAttachPoint=\"rowNode\" waiRole=\"presentation\"\n\t\t><span dojoAttachPoint=\"expandoNode\" class=\"dijitTreeExpando\" waiRole=\"presentation\"\n\t\t></span\n\t\t><span dojoAttachPoint=\"expandoNodeText\" class=\"dijitExpandoText\" waiRole=\"presentation\"\n\t\t></span\n\t\t><div dojoAttachPoint=\"contentNode\" class=\"dijitTreeContent\" waiRole=\"presentation\">\n\t\t\t<div dojoAttachPoint=\"iconNode\" class=\"dijitInline dijitTreeIcon\" waiRole=\"presentation\"></div>\n\t\t\t<span dojoAttachPoint=\"labelNode\" class=\"dijitTreeLabel\" wairole=\"treeitem\" tabindex=\"-1\" waiState=\"selected-false\" dojoAttachEvent=\"onfocus:_onNodeFocus\"></span>\n\t\t</div\n\t></div>\n</div>\n",
-
- postCreate: function(){
- // set label, escaping special characters
- this.setLabelNode(this.label);
-
- // set expand icon for leaf
- this._setExpando();
-
- // set icon and label class based on item
- this._updateItemClasses(this.item);
-
- if(this.isExpandable){
- dijit.setWaiState(this.labelNode, "expanded", this.isExpanded);
- }
- },
-
- markProcessing: function(){
- // summary: visually denote that tree is loading data, etc.
- this.state = "LOADING";
- this._setExpando(true);
- },
-
- unmarkProcessing: function(){
- // summary: clear markup from markProcessing() call
- this._setExpando(false);
- },
-
- _updateItemClasses: function(item){
- // summary: set appropriate CSS classes for icon and label dom node (used to allow for item updates to change respective CSS)
- var tree = this.tree, model = tree.model;
- if(tree._v10Compat && item === model.root){
- // For back-compat with 1.0, need to use null to specify root item (TODO: remove in 2.0)
- item = null;
- }
- this.iconNode.className = "dijitInline dijitTreeIcon " + tree.getIconClass(item, this.isExpanded);
- this.labelNode.className = "dijitTreeLabel " + tree.getLabelClass(item, this.isExpanded);
- },
-
- _updateLayout: function(){
- // summary: set appropriate CSS classes for this.domNode
- var parent = this.getParent();
- if(!parent || parent.rowNode.style.display == "none"){
- /* if we are hiding the root node then make every first level child look like a root node */
- dojo.addClass(this.domNode, "dijitTreeIsRoot");
- }else{
- dojo.toggleClass(this.domNode, "dijitTreeIsLast", !this.getNextSibling());
- }
- },
-
- _setExpando: function(/*Boolean*/ processing){
- // summary: set the right image for the expando node
-
- // apply the appropriate class to the expando node
- var styles = ["dijitTreeExpandoLoading", "dijitTreeExpandoOpened",
- "dijitTreeExpandoClosed", "dijitTreeExpandoLeaf"];
- var idx = processing ? 0 : (this.isExpandable ? (this.isExpanded ? 1 : 2) : 3);
- dojo.forEach(styles,
- function(s){
- dojo.removeClass(this.expandoNode, s);
- }, this
- );
- dojo.addClass(this.expandoNode, styles[idx]);
-
- // provide a non-image based indicator for images-off mode
- this.expandoNodeText.innerHTML =
- processing ? "*" :
- (this.isExpandable ?
- (this.isExpanded ? "-" : "+") : "*");
- },
-
- expand: function(){
- // summary: show my children
- if(this.isExpanded){ return; }
- // cancel in progress collapse operation
- if(this._wipeOut.status() == "playing"){
- this._wipeOut.stop();
- }
-
- this.isExpanded = true;
- dijit.setWaiState(this.labelNode, "expanded", "true");
- dijit.setWaiRole(this.containerNode, "group");
- this.contentNode.className = "dijitTreeContent dijitTreeContentExpanded";
- this._setExpando();
- this._updateItemClasses(this.item);
-
- this._wipeIn.play();
- },
-
- collapse: function(){
- if(!this.isExpanded){ return; }
-
- // cancel in progress expand operation
- if(this._wipeIn.status() == "playing"){
- this._wipeIn.stop();
- }
-
- this.isExpanded = false;
- dijit.setWaiState(this.labelNode, "expanded", "false");
- this.contentNode.className = "dijitTreeContent";
- this._setExpando();
- this._updateItemClasses(this.item);
-
- this._wipeOut.play();
- },
-
- setLabelNode: function(label){
- this.labelNode.innerHTML="";
- this.labelNode.appendChild(dojo.doc.createTextNode(label));
- },
-
- setChildItems: function(/* Object[] */ items){
- // summary:
- // Sets the child items of this node, removing/adding nodes
- // from current children to match specified items[] array.
-
- var tree = this.tree,
- model = tree.model;
-
- // Orphan all my existing children.
- // If items contains some of the same items as before then we will reattach them.
- // Don't call this.removeChild() because that will collapse the tree etc.
- this.getChildren().forEach(function(child){
- dijit._Container.prototype.removeChild.call(this, child);
- }, this);
-
- this.state = "LOADED";
-
- if(items && items.length > 0){
- this.isExpandable = true;
- if(!this.containerNode){ // maybe this node was unfolderized and still has container
- this.containerNode = this.tree.containerNodeTemplate.cloneNode(true);
- this.domNode.appendChild(this.containerNode);
- }
-
- // Create _TreeNode widget for each specified tree node, unless one already
- // exists and isn't being used (presumably it's from a DnD move and was recently
- // released
- dojo.forEach(items, function(item){
- var id = model.getIdentity(item),
- existingNode = tree._itemNodeMap[id],
- node =
- ( existingNode && !existingNode.getParent() ) ?
- existingNode :
- new dijit._TreeNode({
- item: item,
- tree: tree,
- isExpandable: model.mayHaveChildren(item),
- label: tree.getLabel(item)
- });
- this.addChild(node);
- // note: this won't work if there are two nodes for one item (multi-parented items); will be fixed later
- tree._itemNodeMap[id] = node;
- if(this.tree.persist){
- if(tree._openedItemIds[id]){
- tree._expandNode(node);
- }
- }
- }, this);
-
- // note that updateLayout() needs to be called on each child after
- // _all_ the children exist
- dojo.forEach(this.getChildren(), function(child, idx){
- child._updateLayout();
- });
- }else{
- this.isExpandable=false;
- }
-
- if(this._setExpando){
- // change expando to/from dot or + icon, as appropriate
- this._setExpando(false);
- }
-
- // On initial tree show, put focus on either the root node of the tree,
- // or the first child, if the root node is hidden
- if(!this.parent){
- var fc = this.tree.showRoot ? this : this.getChildren()[0],
- tabnode = fc ? fc.labelNode : this.domNode;
- tabnode.setAttribute("tabIndex", "0");
- }
-
- // create animations for showing/hiding the children (if children exist)
- if(this.containerNode && !this._wipeIn){
- this._wipeIn = dojo.fx.wipeIn({node: this.containerNode, duration: 150});
- this._wipeOut = dojo.fx.wipeOut({node: this.containerNode, duration: 150});
- }
- },
-
- removeChild: function(/* treeNode */ node){
- this.inherited(arguments);
-
- var children = this.getChildren();
- if(children.length == 0){
- this.isExpandable = false;
- this.collapse();
- }
-
- dojo.forEach(children, function(child){
- child._updateLayout();
- });
- },
-
- makeExpandable: function(){
- //summary
- // if this node wasn't already showing the expando node,
- // turn it into one and call _setExpando()
- this.isExpandable = true;
- this._setExpando(false);
- },
-
- _onNodeFocus: function(evt){
- var node = dijit.getEnclosingWidget(evt.target);
- this.tree._onTreeFocus(node);
- }
-});
-
-dojo.declare(
- "dijit.Tree",
- [dijit._Widget, dijit._Templated],
-{
- // summary
- // This widget displays hierarchical data from a store. A query is specified
- // to get the "top level children" from a data store, and then those items are
- // queried for their children and so on (but lazily, as the user clicks the expand node).
- //
- // Thus in the default mode of operation this widget is technically a forest, not a tree,
- // in that there can be multiple "top level children". However, if you specify label,
- // then a special top level node (not corresponding to any item in the datastore) is
- // created, to father all the top level children.
-
- // store: String||dojo.data.Store
- // The store to get data to display in the tree.
- // May remove for 2.0 in favor of "model".
- store: null,
-
- // model: dijit.Tree.model
- // Alternate interface from store to access data (and changes to data) in the tree
- model: null,
-
- // query: anything
- // Specifies datastore query to return the root item for the tree.
- //
- // Deprecated functionality: if the query returns multiple items, the tree is given
- // a fake root node (not corresponding to any item in the data store),
- // whose children are the items that match this query.
- //
- // The root node is shown or hidden based on whether a label is specified.
- //
- // Having a query return multiple items is deprecated.
- // If your store doesn't have a root item, wrap the store with
- // dijit.tree.ForestStoreModel, and specify model=myModel
- //
- // example:
- // {type:'continent'}
- query: null,
-
- // label: String
- // Deprecated. Use dijit.tree.ForestStoreModel directly instead.
- // Used in conjunction with query parameter.
- // If a query is specified (rather than a root node id), and a label is also specified,
- // then a fake root node is created and displayed, with this label.
- label: "",
-
- // showRoot: Boolean
- // Should the root node be displayed, or hidden?
- showRoot: true,
-
- // childrenAttr: String[]
- // one ore more attributes that holds children of a tree node
- childrenAttr: ["children"],
-
- // openOnClick: Boolean
- // If true, clicking a folder node's label will open it, rather than calling onClick()
- openOnClick: false,
-
- templateString:"<div class=\"dijitTreeContainer\" waiRole=\"tree\"\n\tdojoAttachEvent=\"onclick:_onClick,onkeypress:_onKeyPress\">\n</div>\n",
-
- isExpandable: true,
-
- isTree: true,
-
- // persist: Boolean
- // enables/disables use of cookies for state saving.
- persist: true,
-
- // dndController: String
- // class name to use as as the dnd controller
- dndController: null,
-
- //parameters to pull off of the tree and pass on to the dndController as its params
- dndParams: ["onDndDrop","itemCreator","onDndCancel","checkAcceptance", "checkItemAcceptance"],
-
- //declare the above items so they can be pulled from the tree's markup
- onDndDrop:null,
- itemCreator:null,
- onDndCancel:null,
- checkAcceptance:null,
- checkItemAcceptance:null,
-
- _publish: function(/*String*/ topicName, /*Object*/ message){
- // summary:
- // Publish a message for this widget/topic
- dojo.publish(this.id, [dojo.mixin({tree: this, event: topicName}, message||{})]);
- },
-
- postMixInProperties: function(){
- this.tree = this;
-
- this._itemNodeMap={};
-
- if(!this.cookieName){
- this.cookieName = this.id + "SaveStateCookie";
- }
- },
-
- postCreate: function(){
- // load in which nodes should be opened automatically
- if(this.persist){
- var cookie = dojo.cookie(this.cookieName);
- this._openedItemIds = {};
- if(cookie){
- dojo.forEach(cookie.split(','), function(item){
- this._openedItemIds[item] = true;
- }, this);
- }
- }
-
- // make template for container node (we will clone this and insert it into
- // any nodes that have children)
- var div = dojo.doc.createElement('div');
- div.style.display = 'none';
- div.className = "dijitTreeContainer";
- dijit.setWaiRole(div, "presentation");
- this.containerNodeTemplate = div;
-
- // Create glue between store and Tree, if not specified directly by user
- if(!this.model){
- this._store2model();
- }
-
- // monitor changes to items
- this.connect(this.model, "onChange", "_onItemChange");
- this.connect(this.model, "onChildrenChange", "_onItemChildrenChange");
- // TODO: monitor item deletes so we don't end up w/orphaned nodes?
-
- this._load();
-
- this.inherited("postCreate", arguments);
-
- if(this.dndController){
- if(dojo.isString(this.dndController)){
- this.dndController= dojo.getObject(this.dndController);
- }
- var params={};
- for (var i=0; i<this.dndParams.length;i++){
- if(this[this.dndParams[i]]){
- params[this.dndParams[i]]=this[this.dndParams[i]];
- }
- }
- this.dndController= new this.dndController(this, params);
- }
- },
-
- _store2model: function(){
- // summary: user specified a store&query rather than model, so create model from store/query
- this._v10Compat = true;
- dojo.deprecated("Tree: from version 2.0, should specify a model object rather than a store/query");
-
- var modelParams = {
- id: this.id + "_ForestStoreModel",
- store: this.store,
- query: this.query,
- childrenAttrs: this.childrenAttr
- };
-
- // Only override the model's mayHaveChildren() method if the user has specified an override
- if(this.params.mayHaveChildren){
- modelParams.mayHaveChildren = dojo.hitch(this, "mayHaveChildren");
- }
-
- if(this.params.getItemChildren){
- modelParams.getChildren = dojo.hitch(this, function(item, onComplete, onError){
- this.getItemChildren((this._v10Compat && item === this.model.root) ? null : item, onComplete, onError);
- });
- }
- this.model = new dijit.tree.ForestStoreModel(modelParams);
-
- // For backwards compatibility, the visibility of the root node is controlled by
- // whether or not the user has specified a label
- this.showRoot = Boolean(this.label);
- },
-
- _load: function(){
- // summary: initial load of the tree
- // load root node (possibly hidden) and it's children
- this.model.getRoot(
- dojo.hitch(this, function(item){
- var rn = this.rootNode = new dijit._TreeNode({
- item: item,
- tree: this,
- isExpandable: true,
- label: this.label || this.getLabel(item)
- });
- if(!this.showRoot){
- rn.rowNode.style.display="none";
- }
- this.domNode.appendChild(rn.domNode);
- this._itemNodeMap[this.model.getIdentity(item)] = rn;
-
- rn._updateLayout(); // sets "dijitTreeIsRoot" CSS classname
-
- // load top level children
- this._expandNode(rn);
- }),
- function(err){
- console.error(this, ": error loading root: ", err);
- }
- );
- },
-
- ////////////// Data store related functions //////////////////////
- // These just get passed to the model; they are here for back-compat
-
- mayHaveChildren: function(/*dojo.data.Item*/ item){
- // summary
- // User overridable function to tell if an item has or may have children.
- // Controls whether or not +/- expando icon is shown.
- // (For efficiency reasons we may not want to check if an element actually
- // has children until user clicks the expando node)
- },
-
- getItemChildren: function(/*dojo.data.Item*/ parentItem, /*function(items)*/ onComplete){
- // summary
- // User overridable function that return array of child items of given parent item,
- // or if parentItem==null then return top items in tree
- },
-
- ///////////////////////////////////////////////////////
- // Functions for converting an item to a TreeNode
- getLabel: function(/*dojo.data.Item*/ item){
- // summary: user overridable function to get the label for a tree node (given the item)
- return this.model.getLabel(item); // String
- },
-
- getIconClass: function(/*dojo.data.Item*/ item, /*Boolean*/ opened){
- // summary: user overridable function to return CSS class name to display icon
- return (!item || this.model.mayHaveChildren(item)) ? (opened ? "dijitFolderOpened" : "dijitFolderClosed") : "dijitLeaf"
- },
-
- getLabelClass: function(/*dojo.data.Item*/ item, /*Boolean*/ opened){
- // summary: user overridable function to return CSS class name to display label
- },
-
- /////////// Keyboard and Mouse handlers ////////////////////
-
- _onKeyPress: function(/*Event*/ e){
- // summary: translates keypress events into commands for the controller
- if(e.altKey){ return; }
- var treeNode = dijit.getEnclosingWidget(e.target);
- if(!treeNode){ return; }
-
- // Note: On IE e.keyCode is not 0 for printables so check e.charCode.
- // In dojo charCode is universally 0 for non-printables.
- if(e.charCode){ // handle printables (letter navigation)
- // Check for key navigation.
- var navKey = e.charCode;
- if(!e.altKey && !e.ctrlKey && !e.shiftKey && !e.metaKey){
- navKey = (String.fromCharCode(navKey)).toLowerCase();
- this._onLetterKeyNav( { node: treeNode, key: navKey } );
- dojo.stopEvent(e);
- }
- }else{ // handle non-printables (arrow keys)
- var map = this._keyHandlerMap;
- if(!map){
- // setup table mapping keys to events
- map = {};
- map[dojo.keys.ENTER]="_onEnterKey";
- map[this.isLeftToRight() ? dojo.keys.LEFT_ARROW : dojo.keys.RIGHT_ARROW]="_onLeftArrow";
- map[this.isLeftToRight() ? dojo.keys.RIGHT_ARROW : dojo.keys.LEFT_ARROW]="_onRightArrow";
- map[dojo.keys.UP_ARROW]="_onUpArrow";
- map[dojo.keys.DOWN_ARROW]="_onDownArrow";
- map[dojo.keys.HOME]="_onHomeKey";
- map[dojo.keys.END]="_onEndKey";
- this._keyHandlerMap = map;
- }
- if(this._keyHandlerMap[e.keyCode]){
- this[this._keyHandlerMap[e.keyCode]]( { node: treeNode, item: treeNode.item } );
- dojo.stopEvent(e);
- }
- }
- },
-
- _onEnterKey: function(/*Object*/ message){
- this._publish("execute", { item: message.item, node: message.node} );
- this.onClick(message.item, message.node);
- },
-
- _onDownArrow: function(/*Object*/ message){
- // summary: down arrow pressed; get next visible node, set focus there
- var node = this._getNextNode(message.node);
- if(node && node.isTreeNode){
- this.focusNode(node);
- }
- },
-
- _onUpArrow: function(/*Object*/ message){
- // summary: up arrow pressed; move to previous visible node
-
- var node = message.node;
-
- // if younger siblings
- var previousSibling = node.getPreviousSibling();
- if(previousSibling){
- node = previousSibling;
- // if the previous node is expanded, dive in deep
- while(node.isExpandable && node.isExpanded && node.hasChildren()){
- // move to the last child
- var children = node.getChildren();
- node = children[children.length-1];
- }
- }else{
- // if this is the first child, return the parent
- // unless the parent is the root of a tree with a hidden root
- var parent = node.getParent();
- if(!(!this.showRoot && parent === this.rootNode)){
- node = parent;
- }
- }
-
- if(node && node.isTreeNode){
- this.focusNode(node);
- }
- },
-
- _onRightArrow: function(/*Object*/ message){
- // summary: right arrow pressed; go to child node
- var node = message.node;
-
- // if not expanded, expand, else move to 1st child
- if(node.isExpandable && !node.isExpanded){
- this._expandNode(node);
- }else if(node.hasChildren()){
- node = node.getChildren()[0];
- if(node && node.isTreeNode){
- this.focusNode(node);
- }
- }
- },
-
- _onLeftArrow: function(/*Object*/ message){
- // summary:
- // Left arrow pressed.
- // If not collapsed, collapse, else move to parent.
-
- var node = message.node;
-
- if(node.isExpandable && node.isExpanded){
- this._collapseNode(node);
- }else{
- node = node.getParent();
- if(node && node.isTreeNode){
- this.focusNode(node);
- }
- }
- },
-
- _onHomeKey: function(){
- // summary: home pressed; get first visible node, set focus there
- var node = this._getRootOrFirstNode();
- if(node){
- this.focusNode(node);
- }
- },
-
- _onEndKey: function(/*Object*/ message){
- // summary: end pressed; go to last visible node
-
- var node = this;
- while(node.isExpanded){
- var c = node.getChildren();
- node = c[c.length - 1];
- }
-
- if(node && node.isTreeNode){
- this.focusNode(node);
- }
- },
-
- _onLetterKeyNav: function(message){
- // summary: letter key pressed; search for node starting with first char = key
- var node = startNode = message.node,
- key = message.key;
- do{
- node = this._getNextNode(node);
- //check for last node, jump to first node if necessary
- if(!node){
- node = this._getRootOrFirstNode();
- }
- }while(node !== startNode && (node.label.charAt(0).toLowerCase() != key));
- if(node && node.isTreeNode){
- // no need to set focus if back where we started
- if(node !== startNode){
- this.focusNode(node);
- }
- }
- },
-
- _onClick: function(/*Event*/ e){
- // summary: translates click events into commands for the controller to process
- var domElement = e.target;
-
- // find node
- var nodeWidget = dijit.getEnclosingWidget(domElement);
- if(!nodeWidget || !nodeWidget.isTreeNode){
- return;
- }
-
- if( (this.openOnClick && nodeWidget.isExpandable) ||
- (domElement == nodeWidget.expandoNode || domElement == nodeWidget.expandoNodeText) ){
- // expando node was clicked, or label of a folder node was clicked; open it
- if(nodeWidget.isExpandable){
- this._onExpandoClick({node:nodeWidget});
- }
- }else{
- this._publish("execute", { item: nodeWidget.item, node: nodeWidget} );
- this.onClick(nodeWidget.item, nodeWidget);
- this.focusNode(nodeWidget);
- }
- dojo.stopEvent(e);
- },
-
- _onExpandoClick: function(/*Object*/ message){
- // summary: user clicked the +/- icon; expand or collapse my children.
- var node = message.node;
-
- // If we are collapsing, we might be hiding the currently focused node.
- // Also, clicking the expando node might have erased focus from the current node.
- // For simplicity's sake just focus on the node with the expando.
- this.focusNode(node);
-
- if(node.isExpanded){
- this._collapseNode(node);
- }else{
- this._expandNode(node);
- }
- },
-
- onClick: function(/* dojo.data */ item, /*TreeNode*/ node){
- // summary: user overridable function for executing a tree item
- },
-
- _getNextNode: function(node){
- // summary: get next visible node
-
- if(node.isExpandable && node.isExpanded && node.hasChildren()){
- // if this is an expanded node, get the first child
- return node.getChildren()[0]; // _TreeNode
- }else{
- // find a parent node with a sibling
- while(node && node.isTreeNode){
- var returnNode = node.getNextSibling();
- if(returnNode){
- return returnNode; // _TreeNode
- }
- node = node.getParent();
- }
- return null;
- }
- },
-
- _getRootOrFirstNode: function(){
- // summary: get first visible node
- return this.showRoot ? this.rootNode : this.rootNode.getChildren()[0];
- },
-
- _collapseNode: function(/*_TreeNode*/ node){
- // summary: called when the user has requested to collapse the node
-
- if(node.isExpandable){
- if(node.state == "LOADING"){
- // ignore clicks while we are in the process of loading data
- return;
- }
-
- node.collapse();
- if(this.persist && node.item){
- delete this._openedItemIds[this.model.getIdentity(node.item)];
- this._saveState();
- }
- }
- },
-
- _expandNode: function(/*_TreeNode*/ node){
- // summary: called when the user has requested to expand the node
-
- if(!node.isExpandable){
- return;
- }
-
- var model = this.model,
- item = node.item;
-
- switch(node.state){
- case "LOADING":
- // ignore clicks while we are in the process of loading data
- return;
-
- case "UNCHECKED":
- // need to load all the children, and then expand
- node.markProcessing();
- var _this = this;
- model.getChildren(item, function(items){
- node.unmarkProcessing();
- node.setChildItems(items);
- _this._expandNode(node);
- },
- function(err){
- console.error(_this, ": error loading root children: ", err);
- });
- break;
-
- default:
- // data is already loaded; just proceed
- node.expand();
- if(this.persist && item){
- this._openedItemIds[model.getIdentity(item)] = true;
- this._saveState();
- }
- }
- },
-
- ////////////////// Miscellaneous functions ////////////////
-
- blurNode: function(){
- // summary
- // Removes focus from the currently focused node (which must be visible).
- // Usually not called directly (just call focusNode() on another node instead)
- var node = this.lastFocused;
- if(!node){ return; }
- var labelNode = node.labelNode;
- dojo.removeClass(labelNode, "dijitTreeLabelFocused");
- labelNode.setAttribute("tabIndex", "-1");
- dijit.setWaiState(labelNode, "selected", false);
- this.lastFocused = null;
- },
-
- focusNode: function(/* _tree.Node */ node){
- // summary
- // Focus on the specified node (which must be visible)
-
- // set focus so that the label will be voiced using screen readers
- node.labelNode.focus();
- },
-
- _onBlur: function(){
- // summary:
- // We've moved away from the whole tree. The currently "focused" node
- // (see focusNode above) should remain as the lastFocused node so we can
- // tab back into the tree. Just change CSS to get rid of the dotted border
- // until that time
-
- this.inherited(arguments);
- if(this.lastFocused){
- var labelNode = this.lastFocused.labelNode;
- dojo.removeClass(labelNode, "dijitTreeLabelFocused");
- }
- },
-
- _onTreeFocus: function(/*Widget*/ node){
- // summary:
- // called from onFocus handler of treeitem labelNode to set styles, wai state and tabindex
- // for currently focused treeitem.
-
- if (node){
- if(node != this.lastFocused){
- this.blurNode();
- }
- var labelNode = node.labelNode;
- // set tabIndex so that the tab key can find this node
- labelNode.setAttribute("tabIndex", "0");
- dijit.setWaiState(labelNode, "selected", true);
- dojo.addClass(labelNode, "dijitTreeLabelFocused");
- this.lastFocused = node;
- }
- },
-
- //////////////// Events from the model //////////////////////////
-
- _onItemDelete: function(/*Object*/ item){
- //summary: delete event from the store
- // TODO: currently this isn't called, and technically doesn't need to be,
- // but it would help with garbage collection
-
- var identity = this.model.getIdentity(item);
- var node = this._itemNodeMap[identity];
-
- if(node){
- var parent = node.getParent();
- if(parent){
- // if node has not already been orphaned from a _onSetItem(parent, "children", ..) call...
- parent.removeChild(node);
- }
- delete this._itemNodeMap[identity];
- node.destroyRecursive();
- }
- },
-
- _onItemChange: function(/*Item*/ item){
- //summary: set data event on an item in the store
- var model = this.model,
- identity = model.getIdentity(item),
- node = this._itemNodeMap[identity];
-
- if(node){
- node.setLabelNode(this.getLabel(item));
- node._updateItemClasses(item);
- }
- },
-
- _onItemChildrenChange: function(/*dojo.data.Item*/ parent, /*dojo.data.Item[]*/ newChildrenList){
- //summary: set data event on an item in the store
- var model = this.model,
- identity = model.getIdentity(parent),
- parentNode = this._itemNodeMap[identity];
-
- if(parentNode){
- parentNode.setChildItems(newChildrenList);
- }
- },
-
- /////////////// Miscellaneous funcs
-
- _saveState: function(){
- //summary: create and save a cookie with the currently expanded nodes identifiers
- if(!this.persist){
- return;
- }
- var ary = [];
- for(var id in this._openedItemIds){
- ary.push(id);
- }
- dojo.cookie(this.cookieName, ary.join(","));
- },
-
- destroy: function(){
- if(this.rootNode){
- this.rootNode.destroyRecursive();
- }
- this.rootNode = null;
- this.inherited(arguments);
- },
-
- destroyRecursive: function(){
- // A tree is treated as a leaf, not as a node with children (like a grid),
- // but defining destroyRecursive for back-compat.
- this.destroy();
- }
-});
-
-
-dojo.declare(
- "dijit.tree.TreeStoreModel",
- null,
-{
- // summary
- // Implements dijit.Tree.model connecting to a store with a single
- // root item. Any methods passed into the constructor will override
- // the ones defined here.
-
- // store: dojo.data.Store
- // Underlying store
- store: null,
-
- // childrenAttrs: String[]
- // one ore more attributes that holds children of a tree node
- childrenAttrs: ["children"],
-
- // root: dojo.data.Item
- // Pointer to the root item (read only, not a parameter)
- root: null,
-
- // query: anything
- // Specifies datastore query to return the root item for the tree.
- // Must only return a single item. Alternately can just pass in pointer
- // to root item.
- // example:
- // {id:'ROOT'}
- query: null,
-
- constructor: function(/* Object */ args){
- // summary: passed the arguments listed above (store, etc)
- dojo.mixin(this, args);
-
- this.connects = [];
-
- var store = this.store;
- if(!store.getFeatures()['dojo.data.api.Identity']){
- throw new Error("dijit.Tree: store must support dojo.data.Identity");
- }
-
- // if the store supports Notification, subscribe to the notification events
- if(store.getFeatures()['dojo.data.api.Notification']){
- this.connects = this.connects.concat([
- dojo.connect(store, "onNew", this, "_onNewItem"),
- dojo.connect(store, "onDelete", this, "_onDeleteItem"),
- dojo.connect(store, "onSet", this, "_onSetItem")
- ]);
- }
- },
-
- destroy: function(){
- dojo.forEach(this.connects, dojo.disconnect);
- },
-
- // =======================================================================
- // Methods for traversing hierarchy
-
- getRoot: function(onItem, onError){
- // summary:
- // Calls onItem with the root item for the tree, possibly a fabricated item.
- // Calls onError on error.
- if(this.root){
- onItem(this.root);
- }else{
- this.store.fetch({
- query: this.query,
- onComplete: dojo.hitch(this, function(items){
- if(items.length != 1){
- throw new Error(this.declaredClass + ": query " + query + " returned " + items.length +
- " items, but must return exactly one item");
- }
- this.root = items[0];
- onItem(this.root);
- }),
- onError: onError
- });
- }
- },
-
- 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)
- return dojo.some(this.childrenAttrs, function(attr){
- return this.store.hasAttribute(item, attr);
- }, this);
- },
-
- getChildren: function(/*dojo.data.Item*/ parentItem, /*function(items)*/ onComplete, /*function*/ onError){
- // summary
- // Calls onComplete() with array of child items of given parent item, all loaded.
-
- var store = this.store;
-
- // get children of specified item
- var childItems = [];
- for (var i=0; i<this.childrenAttrs.length; i++){
- var vals = store.getValues(parentItem, this.childrenAttrs[i]);
- childItems = childItems.concat(vals);
- }
-
- // count how many items need to be loaded
- var _waitCount = 0;
- dojo.forEach(childItems, function(item){ if(!store.isItemLoaded(item)){ _waitCount++; } });
-
- if(_waitCount == 0){
- // all items are already loaded. proceed...
- onComplete(childItems);
- }else{
- // still waiting for some or all of the items to load
- var onItem = function onItem(item){
- if(--_waitCount == 0){
- // all nodes have been loaded, send them to the tree
- onComplete(childItems);
- }
- }
- dojo.forEach(childItems, function(item){
- if(!store.isItemLoaded(item)){
- store.loadItem({
- item: item,
- onItem: onItem,
- onError: onError
- });
- }
- });
- }
- },
-
- // =======================================================================
- // Inspecting items
-
- getIdentity: function(/* item */ item){
- return this.store.getIdentity(item); // Object
- },
-
- getLabel: function(/*dojo.data.Item*/ item){
- // summary: get the label for an item
- return this.store.getLabel(item); // String
- },
-
- // =======================================================================
- // Write interface
-
- newItem: function(/* Object? */ args, /*Item*/ parent){
- // summary
- // Creates a new item. See dojo.data.api.Write for details on args.
- // Used in drag & drop when item from external source dropped onto tree.
- var pInfo = {parent: parent, attribute: this.childrenAttrs[0]};
- return this.store.newItem(args, pInfo);
- },
-
- 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
- var store = this.store,
- parentAttr = this.childrenAttrs[0]; // name of "children" attr in parent item
-
- // remove child from source item, and record the attributee that child occurred in
- if(oldParentItem){
- dojo.forEach(this.childrenAttrs, function(attr){
- if(store.containsValue(oldParentItem, attr, childItem)){
- if(!bCopy){
- var values = dojo.filter(store.getValues(oldParentItem, attr), function(x){
- return x != childItem;
- });
- store.setValues(oldParentItem, attr, values);
- }
- parentAttr = attr;
- }
- });
- }
-
- // modify target item's children attribute to include this item
- if(newParentItem){
- store.setValues(newParentItem, parentAttr,
- store.getValues(newParentItem, parentAttr).concat(childItem));
- }
- },
-
- // =======================================================================
- // 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.
- },
-
- // =======================================================================
- ///Events from data store
-
- _onNewItem: function(/* dojo.data.Item */ item, /* Object */ parentInfo){
- // summary: handler for when new items appear in the store.
-
- // In this case there's no correspond onSet() call on the parent of this
- // item, so need to get the new children list of the parent manually somehow.
- if(!parentInfo){
- return;
- }
- this.getChildren(parentInfo.item, dojo.hitch(this, function(children){
- // NOTE: maybe can be optimized since parentInfo contains the new and old attribute value
- this.onChildrenChange(parentInfo.item, children);
- }));
- },
-
- _onDeleteItem: function(/*Object*/ item){
- // summary: handler for delete notifications from underlying store
- },
-
- _onSetItem: function(/* item */ item,
- /* attribute-name-string */ attribute,
- /* object | array */ oldValue,
- /* object | array */ newValue){
- //summary: set data event on an item in the store
-
- if(dojo.indexOf(this.childrenAttrs, attribute) != -1){
- // item's children list changed
- this.getChildren(item, dojo.hitch(this, function(children){
- // NOTE: maybe can be optimized since parentInfo contains the new and old attribute value
- this.onChildrenChange(item, children);
- }));
- }else{
- // item's label/icon/etc. changed.
- this.onChange(item);
- }
- }
-});
-
-dojo.declare("dijit.tree.ForestStoreModel", dijit.tree.TreeStoreModel, {
- // summary
- // Interface between Tree and a dojo.store that doesn't have a root item, ie,
- // has multiple "top level" items.
- //
- // description
- // Use this class to wrap a dojo.store, making all the items matching the specified query
- // appear as children of a fabricated "root item". If no query is specified then all the
- // items returned by fetch() on the underlying store become children of the root item.
- // It allows dijit.Tree to assume a single root item, even if the store doesn't have one.
-
- // Parameters to constructor
-
- // rootId: String
- // ID of fabricated root item
- rootId: "$root$",
-
- // rootLabel: String
- // Label of fabricated root item
- rootLabel: "ROOT",
-
- // query: String
- // Specifies the set of children of the root item.
- // example:
- // {type:'continent'}
- query: null,
-
- // End of parameters to constructor
-
- constructor: function(params){
- // Make dummy root item
- this.root = {
- store: this,
- root: true,
- id: params.rootId,
- label: params.rootLabel,
- children: params.rootChildren // optional param
- };
- },
-
- // =======================================================================
- // Methods for traversing hierarchy
-
- 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)
- return item === this.root || this.inherited(arguments);
- },
-
- getChildren: function(/*dojo.data.Item*/ parentItem, /*function(items)*/ callback, /*function*/ onError){
- // summary
- // Calls onComplete() with array of child items of given parent item, all loaded.
- if(parentItem === this.root){
- if(this.root.children){
- // already loaded, just return
- callback(this.root.children);
- }else{
- this.store.fetch({
- query: this.query,
- onComplete: dojo.hitch(this, function(items){
- this.root.children = items;
- callback(items);
- }),
- onError: onError
- });
- }
- }else{
- this.inherited(arguments);
- }
- },
-
- // =======================================================================
- // Inspecting items
-
- getIdentity: function(/* item */ item){
- return (item === this.root) ? this.root.id : this.inherited(arguments);
- },
-
- getLabel: function(/* item */ item){
- return (item === this.root) ? this.root.label : this.inherited(arguments);
- },
-
- // =======================================================================
- // Write interface
-
- newItem: function(/* Object? */ args, /*Item*/ parent){
- // summary
- // Creates a new item. See dojo.data.api.Write for details on args.
- // Used in drag & drop when item from external source dropped onto tree.
- if(parent===this.root){
- this.onNewRootItem(args);
- return this.store.newItem(args);
- }else{
- return this.inherited(arguments);
- }
- },
-
- onNewRootItem: function(args){
- // summary:
- // User can override this method to modify a new element that's being
- // added to the root of the tree, for example to add a flag like root=true
- },
-
- 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 === this.root){
- if(!bCopy){
- // It's onLeaveRoot()'s responsibility to modify the item so it no longer matches
- // this.query... thus triggering an onChildrenChange() event to notify the Tree
- // that this element is no longer a child of the root node
- this.onLeaveRoot(childItem);
- }
- }
- dijit.tree.TreeStoreModel.prototype.pasteItem.call(this, childItem,
- oldParentItem === this.root ? null : oldParentItem,
- newParentItem === this.root ? null : newParentItem
- );
- if(newParentItem === this.root){
- // It's onAddToRoot()'s responsibility to modify the item so it matches
- // this.query... thus triggering an onChildrenChange() event to notify the Tree
- // that this element is now a child of the root node
- this.onAddToRoot(childItem);
- }
- },
-
- // =======================================================================
- // Callbacks
-
- onAddToRoot: function(/* item */ item){
- // summary
- // Called when item added to root of tree; user must override
- // to modify the item so that it matches the query for top level items
- // example
- // | store.setValue(item, "root", true);
- console.log(this, ": item ", item, " added to root");
- },
-
- onLeaveRoot: function(/* item */ item){
- // summary
- // Called when item removed from root of tree; user must override
- // to modify the item so it doesn't match the query for top level items
- // example
- // | store.unsetAttribute(item, "root");
- console.log(this, ": item ", item, " removed from root");
- },
-
- // =======================================================================
- // Events from data store
-
- _requeryTop: function(){
- // reruns the query for the children of the root node,
- // sending out an onSet notification if those children have changed
- var _this = this,
- oldChildren = this.root.children;
- this.store.fetch({
- query: this.query,
- onComplete: function(newChildren){
- _this.root.children = newChildren;
-
- // If the list of children or the order of children has changed...
- if(oldChildren.length != newChildren.length ||
- dojo.some(oldChildren, function(item, idx){ return newChildren[idx] != item;})){
- _this.onChildrenChange(_this.root, newChildren);
- }
- }
- });
- },
-
- _onNewItem: function(/* dojo.data.Item */ item, /* Object */ parentInfo){
- // summary: handler for when new items appear in the store.
-
- // In theory, any new item could be a top level item.
- // Do the safe but inefficient thing by requerying the top
- // level items. User can override this function to do something
- // more efficient.
- this._requeryTop();
-
- this.inherited(arguments);
- },
-
- _onDeleteItem: function(/*Object*/ item){
- // summary: handler for delete notifications from underlying store
-
- // check if this was a child of root, and if so send notification that root's children
- // have changed
- if(dojo.indexOf(this.root.children, item) != -1){
- this._requeryTop();
- }
-
- this.inherited(arguments);
- }
-});
-
-}
projects / eow / blobdiff