cacert-testmgr/external/ZendFramework-1.9.5/externals/dojo/dijit/Tree.js

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dojo.provide("dijit.Tree");
dojo.require("dojo.fx");
dojo.require("dijit._Widget");
dojo.require("dijit._Templated");
dojo.require("dijit._Container");
dojo.require("dijit._Contained");
dojo.require("dojo.cookie");
dojo.declare(
"dijit._TreeNode",
[dijit._Widget, dijit._Templated, dijit._Container, dijit._Contained],
{
// summary:
// Single node within a tree. This class is used internally
// by Tree and should not be accessed directly.
// tags:
// private
// item: dojo.data.Item
// the dojo.data entry this tree represents
item: null,
// isTreeNode: [protected] Boolean
// Indicates that this is a TreeNode. Used by `dijit.Tree` only,
// should not be accessed directly.
isTreeNode: true,
// label: String
// Text of this tree node
label: "",
// isExpandable: [private] Boolean
// This node has children, so show the expando node (+ sign)
isExpandable: null,
// isExpanded: [readonly] Boolean
// This node is currently expanded (ie, opened)
isExpanded: false,
// state: [private] 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",
templatePath: dojo.moduleUrl("dijit", "templates/TreeNode.html"),
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);
if(this == this.tree.rootNode){
dijit.setWaitState(this.tree.domNode, "expanded", this.isExpanded);
}
}
},
_setIndentAttr: function(indent){
// summary:
// Tell this node how many levels it should be indented
// description:
// 0 for top level nodes, 1 for their children, 2 for their
// grandchildren, etc.
this.indent = indent;
// Math.max() is to prevent negative padding on hidden root node (when indent == -1)
// 19 is the width of the expandoIcon (TODO: get this from CSS instead of hardcoding)
var pixels = (Math.max(indent, 0) * 19) + "px";
dojo.style(this.domNode, "backgroundPosition", pixels + " 0px");
dojo.style(this.rowNode, dojo._isBodyLtr() ? "paddingLeft" : "paddingRight", pixels);
dojo.forEach(this.getChildren(), function(child){
child.attr("indent", indent+1);
});
},
markProcessing: function(){
// summary:
// Visually denote that tree is loading data, etc.
// tags:
// private
this.state = "LOADING";
this._setExpando(true);
},
unmarkProcessing: function(){
// summary:
// Clear markup from markProcessing() call
// tags:
// private
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)
// tags:
// private
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;
}
if(this._iconClass){
dojo.removeClass(this.iconNode, this._iconClass);
}
this._iconClass = tree.getIconClass(item, this.isExpanded);
if(this._iconClass){
dojo.addClass(this.iconNode, this._iconClass);
}
dojo.style(this.iconNode, tree.getIconStyle(item, this.isExpanded) || {});
if(this._labelClass){
dojo.removeClass(this.labelNode, this._labelClass);
}
this._labelClass = tree.getLabelClass(item, this.isExpanded);
if(this._labelClass){
dojo.addClass(this.labelNode, this._labelClass);
}
dojo.style(this.labelNode, tree.getLabelStyle(item, this.isExpanded) || {});
},
_updateLayout: function(){
// summary:
// Set appropriate CSS classes for this.domNode
// tags:
// private
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
// tags:
// private
// apply the appropriate class to the expando node
var styles = ["dijitTreeExpandoLoading", "dijitTreeExpandoOpened",
"dijitTreeExpandoClosed", "dijitTreeExpandoLeaf"];
var _a11yStates = ["*","-","+","*"];
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 = _a11yStates[idx];
},
expand: function(){
// summary:
// Show my children
if(this.isExpanded){ return; }
// cancel in progress collapse operation
this._wipeOut && this._wipeOut.stop();
this.isExpanded = true;
dijit.setWaiState(this.labelNode, "expanded", "true");
dijit.setWaiRole(this.containerNode, "group");
dojo.addClass(this.contentNode,'dijitTreeContentExpanded');
this._setExpando();
this._updateItemClasses(this.item);
if(this == this.tree.rootNode){
dijit.setWaiState(this.tree.domNode, "expanded", "true");
}
if(!this._wipeIn){
this._wipeIn = dojo.fx.wipeIn({
node: this.containerNode, duration: dijit.defaultDuration
});
}
this._wipeIn.play();
},
collapse: function(){
// summary:
// Collapse this node (if it's expanded)
if(!this.isExpanded){ return; }
// cancel in progress expand operation
this._wipeIn && this._wipeIn.stop();
this.isExpanded = false;
dijit.setWaiState(this.labelNode, "expanded", "false");
if(this == this.tree.rootNode){
dijit.setWaiState(this.tree.domNode, "expanded", "false");
}
dojo.removeClass(this.contentNode,'dijitTreeContentExpanded');
this._setExpando();
this._updateItemClasses(this.item);
if(!this._wipeOut){
this._wipeOut = dojo.fx.wipeOut({
node: this.containerNode, duration: dijit.defaultDuration
});
}
this._wipeOut.play();
},
setLabelNode: function(label){
// summary:
// Sets the label
this.labelNode.innerHTML = "";
this.labelNode.appendChild(dojo.doc.createTextNode(label));
},
// indent: Integer
// Levels from this node to the root node
indent: 0,
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;
// 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 :
this.tree._createTreeNode({
item: item,
tree: tree,
isExpandable: model.mayHaveChildren(item),
label: tree.getLabel(item),
indent: this.indent + 1
});
if(existingNode){
existingNode.attr('indent', this.indent+1);
}
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._state(item)){
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, make the selected TreeNode as either the root node of the tree,
// or the first child, if the root node is hidden
if(this == tree.rootNode){
var fc = this.tree.showRoot ? this : this.getChildren()[0];
if(fc){
fc.setSelected(true);
tree.lastFocused = fc;
}else{
// fallback: no nodes in tree so focus on Tree <div> itself
tree.domNode.setAttribute("tabIndex", "0");
}
}
},
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()
// TODO: hmm this isn't called from anywhere, maybe should remove it for 2.0
this.isExpandable = true;
this._setExpando(false);
},
_onLabelFocus: function(evt){
// summary:
// Called when this node is focused (possibly programatically)
// tags:
// private
dojo.addClass(this.labelNode, "dijitTreeLabelFocused");
this.tree._onNodeFocus(this);
},
_onLabelBlur: function(evt){
// summary:
// Called when focus was moved away from this node, either to
// another TreeNode or away from the Tree entirely.
// Note that we aren't using _onFocus/_onBlur builtin to dijit
// because _onBlur() isn't called when focus is moved to my child TreeNode.
// tags:
// private
dojo.removeClass(this.labelNode, "dijitTreeLabelFocused");
},
setSelected: function(/*Boolean*/ selected){
// summary:
// A Tree has a (single) currently selected node.
// Mark that this node is/isn't that currently selected node.
// description:
// In particular, setting a node as selected involves setting tabIndex
// so that when user tabs to the tree, focus will go to that node (only).
var labelNode = this.labelNode;
labelNode.setAttribute("tabIndex", selected ? "0" : "-1");
dijit.setWaiState(labelNode, "selected", selected);
dojo.toggleClass(this.rowNode, "dijitTreeNodeSelected", selected);
},
_onMouseEnter: function(evt){
// summary:
// Handler for onmouseenter event on a node
// tags:
// private
dojo.addClass(this.rowNode, "dijitTreeNodeHover");
this.tree._onNodeMouseEnter(this, evt);
},
_onMouseLeave: function(evt){
// summary:
// Handler for onmouseenter event on a node
// tags:
// private
dojo.removeClass(this.rowNode, "dijitTreeNodeHover");
this.tree._onNodeMouseLeave(this, evt);
}
});
dojo.declare(
"dijit.Tree",
[dijit._Widget, dijit._Templated],
{
// summary:
// This widget displays hierarchical data from a store.
// store: [deprecated] String||dojo.data.Store
// Deprecated. Use "model" parameter instead.
// The store to get data to display in the tree.
store: null,
// model: dijit.Tree.model
// Interface to read tree data, get notifications of changes to tree data,
// and for handling drop operations (i.e drag and drop onto the tree)
model: null,
// query: [deprecated] anything
// Deprecated. User should specify query to the model directly instead.
// Specifies datastore query to return the root item or top items for the tree.
query: null,
// label: [deprecated] 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: [const] Boolean
// Should the root node be displayed, or hidden?
showRoot: true,
// childrenAttr: [deprecated] String[]
// Deprecated. This information should be specified in the model.
// 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,
// openOnDblClick: Boolean
// If true, double-clicking a folder node's label will open it, rather than calling onDblClick()
openOnDblClick: false,
templatePath: dojo.moduleUrl("dijit", "templates/Tree.html"),
// isExpandable: [private deprecated] Boolean
// TODO: this appears to be vestigal, back from when Tree extended TreeNode. Remove.
isExpandable: true,
// isTree: [private deprecated] Boolean
// TODO: this appears to be vestigal. Remove.
isTree: true,
// persist: Boolean
// Enables/disables use of cookies for state saving.
persist: true,
// dndController: [protected] String
// Class name to use as as the dnd controller. Specifying this class enables DnD.
// Generally you should specify this as "dijit._tree.dndSource".
dndController: null,
// parameters to pull off of the tree and pass on to the dndController as its params
dndParams: ["onDndDrop","itemCreator","onDndCancel","checkAcceptance", "checkItemAcceptance", "dragThreshold", "betweenThreshold"],
//declare the above items so they can be pulled from the tree's markup
// onDndDrop: [protected] Function
// Parameter to dndController, see `dijit._tree.dndSource.onDndDrop`.
// Generally this doesn't need to be set.
onDndDrop: null,
// itemCreator: [protected] Function
// Parameter to dndController, see `dijit._tree.dndSource.itemCreator`.
// Generally this doesn't need to be set.
itemCreator: null,
// onDndCancel: [protected] Function
// Parameter to dndController, see `dijit._tree.dndSource.onDndCancel`.
// Generally this doesn't need to be set.
onDndCancel: null,
/*=====
checkAcceptance: function(source, nodes){
// summary:
// Checks if the Tree itself can accept nodes from this source
// source: dijit.tree._dndSource
// The source which provides items
// nodes: DOMNode[]
// Array of DOM nodes corresponding to nodes being dropped, dijitTreeRow nodes if
// source is a dijit.Tree.
// tags:
// extension
return true; // Boolean
},
=====*/
checkAcceptance: null,
/*=====
checkItemAcceptance: function(target, source, position){
// summary:
// Stub function to be overridden if one wants to check for the ability to drop at the node/item level
// description:
// In the base case, this is called to check if target can become a child of source.
// When betweenThreshold is set, position="before" or "after" means that we
// are asking if the source node can be dropped before/after the target node.
// target: DOMNode
// The dijitTreeRoot DOM node inside of the TreeNode that we are dropping on to
// Use dijit.getEnclosingWidget(target) to get the TreeNode.
// source: dijit._tree.dndSource
// The (set of) nodes we are dropping
// position: String
// "over", "before", or "after"
// tags:
// extension
return true; // Boolean
},
=====*/
checkItemAcceptance: null,
// dragThreshold: Integer
// Number of pixels mouse moves before it's considered the start of a drag operation
dragThreshold: 0,
// betweenThreshold: Integer
// Set to a positive value to allow drag and drop "between" nodes.
//
// If during DnD mouse is over a (target) node but less than betweenThreshold
// pixels from the bottom edge, dropping the the dragged node will make it
// the next sibling of the target node, rather than the child.
//
// Similarly, if mouse is over a target node but less that betweenThreshold
// pixels from the top edge, dropping the dragged node will make it
// the target node's previous sibling rather than the target node's child.
betweenThreshold: 0,
_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";
}
// TODO: this.inherited(arguments)
},
postCreate: function(){
this._initState();
// 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");
this.connect(this.model, "onDelete", "_onItemDelete");
this._load();
this.inherited(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 = this.tree._createTreeNode({
item: item,
tree: this,
isExpandable: true,
label: this.label || this.getLabel(item),
indent: this.showRoot ? 0 : -1
});
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:
// Deprecated. This should be specified on the model itself.
//
// 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)
// tags:
// deprecated
},
getItemChildren: function(/*dojo.data.Item*/ parentItem, /*function(items)*/ onComplete){
// summary:
// Deprecated. This should be specified on the model itself.
//
// Overridable function that return array of child items of given parent item,
// or if parentItem==null then return top items in tree
// tags:
// deprecated
},
///////////////////////////////////////////////////////
// Functions for converting an item to a TreeNode
getLabel: function(/*dojo.data.Item*/ item){
// summary:
// Overridable function to get the label for a tree node (given the item)
// tags:
// extension
return this.model.getLabel(item); // String
},
getIconClass: function(/*dojo.data.Item*/ item, /*Boolean*/ opened){
// summary:
// Overridable function to return CSS class name to display icon
// tags:
// extension
return (!item || this.model.mayHaveChildren(item)) ? (opened ? "dijitFolderOpened" : "dijitFolderClosed") : "dijitLeaf"
},
getLabelClass: function(/*dojo.data.Item*/ item, /*Boolean*/ opened){
// summary:
// Overridable function to return CSS class name to display label
// tags:
// extension
},
getIconStyle: function(/*dojo.data.Item*/ item, /*Boolean*/ opened){
// summary:
// Overridable function to return CSS styles to display icon
// returns:
// Object suitable for input to dojo.style() like {backgroundImage: "url(...)"}
// tags:
// extension
},
getLabelStyle: function(/*dojo.data.Item*/ item, /*Boolean*/ opened){
// summary:
// Overridable function to return CSS styles to display label
// returns:
// Object suitable for input to dojo.style() like {color: "red", background: "green"}
// tags:
// extension
},
/////////// Keyboard and Mouse handlers ////////////////////
_onKeyPress: function(/*Event*/ e){
// summary:
// Translates keypress events into commands for the controller
if(e.altKey){ return; }
var dk = dojo.keys;
var treeNode = dijit.getEnclosingWidget(e.target);
if(!treeNode){ return; }
var key = e.charOrCode;
if(typeof key == "string"){ // handle printables (letter navigation)
// Check for key navigation.
if(!e.altKey && !e.ctrlKey && !e.shiftKey && !e.metaKey){
this._onLetterKeyNav( { node: treeNode, key: key.toLowerCase() } );
dojo.stopEvent(e);
}
}else{ // handle non-printables (arrow keys)
var map = this._keyHandlerMap;
if(!map){
// setup table mapping keys to events
map = {};
map[dk.ENTER]="_onEnterKey";
map[this.isLeftToRight() ? dk.LEFT_ARROW : dk.RIGHT_ARROW]="_onLeftArrow";
map[this.isLeftToRight() ? dk.RIGHT_ARROW : dk.LEFT_ARROW]="_onRightArrow";
map[dk.UP_ARROW]="_onUpArrow";
map[dk.DOWN_ARROW]="_onDownArrow";
map[dk.HOME]="_onHomeKey";
map[dk.END]="_onEndKey";
this._keyHandlerMap = map;
}
if(this._keyHandlerMap[key]){
this[this._keyHandlerMap[key]]( { 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{
var parent = node.getParent();
if(parent && parent.isTreeNode && !(!this.showRoot && parent === this.rootNode)){
this.focusNode(parent);
}
}
},
_onHomeKey: function(){
// summary:
// Home key pressed; get first visible node, and set focus there
var node = this._getRootOrFirstNode();
if(node){
this.focusNode(node);
}
},
_onEndKey: function(/*Object*/ message){
// summary:
// End key pressed; go to last visible node.
var node = this.rootNode;
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 = message.node, startNode = 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);
},
_onDblClick: function(/*Event*/ e){
// summary:
// Translates double-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.openOnDblClick && 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.onDblClick(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:
// Callback when a tree node is clicked
// tags:
// callback
},
onDblClick: function(/* dojo.data */ item, /*TreeNode*/ node){
// summary:
// Callback when a tree node is double-clicked
// tags:
// callback
},
onOpen: function(/* dojo.data */ item, /*TreeNode*/ node){
// summary:
// Callback when a node is opened
// tags:
// callback
},
onClose: function(/* dojo.data */ item, /*TreeNode*/ node){
// summary:
// Callback when a node is closed
// tags:
// callback
},
_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();
this.onClose(node.item, node);
if(node.item){
this._state(node.item,false);
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();
this.onOpen(node.item, node);
if(item){
this._state(item,true);
this._saveState();
}
}
},
////////////////// Miscellaneous functions ////////////////
focusNode: function(/* _tree.Node */ node){
// summary:
// Focus on the specified node (which must be visible)
// tags:
// protected
// set focus so that the label will be voiced using screen readers
node.labelNode.focus();
},
_onNodeFocus: function(/*Widget*/ node){
// summary:
// Called when a TreeNode gets focus, either by user clicking
// it, or programatically by arrow key handling code.
// description:
// It marks that the current node is the selected one, and the previously
// selected node no longer is.
if (node){
if(node != this.lastFocused){
// mark that the previously selected node is no longer the selected one
this.lastFocused.setSelected(false);
}
// mark that the new node is the currently selected one
node.setSelected(true);
this.lastFocused = node;
}
},
_onNodeMouseEnter: function(/*Widget*/ node){
// summary:
// Called when mouse is over a node (onmouseenter event)
},
_onNodeMouseLeave: function(/*Widget*/ node){
// summary:
// Called when mouse is over a node (onmouseenter event)
},
//////////////// Events from the model //////////////////////////
_onItemChange: function(/*Item*/ item){
// summary:
// Processes notification of a change to an item's scalar values like label
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:
// Processes notification of a change to an item's children
var model = this.model,
identity = model.getIdentity(parent),
parentNode = this._itemNodeMap[identity];
if(parentNode){
parentNode.setChildItems(newChildrenList);
}
},
_onItemDelete: function(/*Item*/ item){
// summary:
// Processes notification of a deletion of an item
var model = this.model,
identity = model.getIdentity(item),
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);
}
node.destroyRecursive();
delete this._itemNodeMap[identity];
}
},
/////////////// Miscellaneous funcs
_initState: function(){
// summary:
// 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);
}
}
},
_state: function(item,expanded){
// summary:
// Query or set expanded state for an item,
if(!this.persist){
return false;
}
var id=this.model.getIdentity(item);
if(arguments.length===1){
return this._openedItemIds[id];
}
if(expanded){
this._openedItemIds[id] = true;
}else{
delete this._openedItemIds[id];
}
},
_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(","), {expires:365});
},
destroy: function(){
if(this.rootNode){
this.rootNode.destroyRecursive();
}
if(this.dndController && !dojo.isString(this.dndController)){
this.dndController.destroy();
}
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();
},
_createTreeNode: function(/*Object*/ args){
// summary:
// creates a TreeNode
// description:
// Developers can override this method to define their own TreeNode class;
// However it will probably be removed in a future release in favor of a way
// of just specifying a widget for the label, rather than one that contains
// the children too.
return new dijit._TreeNode(args);
}
});
// For back-compat. TODO: remove in 2.0
dojo.require("dijit.tree.TreeStoreModel");
dojo.require("dijit.tree.ForestStoreModel");