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Diffstat (limited to 'lib/dijit/Tree.js.uncompressed.js')
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diff --git a/lib/dijit/Tree.js.uncompressed.js b/lib/dijit/Tree.js.uncompressed.js new file mode 100644 index 000000000..3bd8161af --- /dev/null +++ b/lib/dijit/Tree.js.uncompressed.js @@ -0,0 +1,1692 @@ +require({cache:{ +'url:dijit/templates/TreeNode.html':"<div class=\"dijitTreeNode\" role=\"presentation\"\n\t><div data-dojo-attach-point=\"rowNode\" class=\"dijitTreeRow\" role=\"presentation\" data-dojo-attach-event=\"onmouseenter:_onMouseEnter, onmouseleave:_onMouseLeave, onclick:_onClick, ondblclick:_onDblClick\"\n\t\t><img src=\"${_blankGif}\" alt=\"\" data-dojo-attach-point=\"expandoNode\" class=\"dijitTreeExpando\" role=\"presentation\"\n\t\t/><span data-dojo-attach-point=\"expandoNodeText\" class=\"dijitExpandoText\" role=\"presentation\"\n\t\t></span\n\t\t><span data-dojo-attach-point=\"contentNode\"\n\t\t\tclass=\"dijitTreeContent\" role=\"presentation\">\n\t\t\t<img src=\"${_blankGif}\" alt=\"\" data-dojo-attach-point=\"iconNode\" class=\"dijitIcon dijitTreeIcon\" role=\"presentation\"\n\t\t\t/><span data-dojo-attach-point=\"labelNode\" class=\"dijitTreeLabel\" role=\"treeitem\" tabindex=\"-1\" aria-selected=\"false\" data-dojo-attach-event=\"onfocus:_onLabelFocus\"></span>\n\t\t</span\n\t></div>\n\t<div data-dojo-attach-point=\"containerNode\" class=\"dijitTreeContainer\" role=\"presentation\" style=\"display: none;\"></div>\n</div>\n", +'url:dijit/templates/Tree.html':"<div class=\"dijitTree dijitTreeContainer\" role=\"tree\"\n\tdata-dojo-attach-event=\"onkeypress:_onKeyPress\">\n\t<div class=\"dijitInline dijitTreeIndent\" style=\"position: absolute; top: -9999px\" data-dojo-attach-point=\"indentDetector\"></div>\n</div>\n"}}); +define("dijit/Tree", [ + "dojo/_base/array", // array.filter array.forEach array.map + "dojo/_base/connect", // connect.isCopyKey() + "dojo/cookie", // cookie + "dojo/_base/declare", // declare + "dojo/_base/Deferred", // Deferred + "dojo/DeferredList", // DeferredList + "dojo/dom", // dom.isDescendant + "dojo/dom-class", // domClass.add domClass.remove domClass.replace domClass.toggle + "dojo/dom-geometry", // domGeometry.setMarginBox domGeometry.position + "dojo/dom-style",// domStyle.set + "dojo/_base/event", // event.stop + "dojo/fx", // fxUtils.wipeIn fxUtils.wipeOut + "dojo/_base/kernel", // kernel.deprecated + "dojo/keys", // arrows etc. + "dojo/_base/lang", // lang.getObject lang.mixin lang.hitch + "dojo/topic", + "./focus", + "./registry", // registry.getEnclosingWidget(), manager.defaultDuration + "./_base/manager", // manager.getEnclosingWidget(), manager.defaultDuration + "./_Widget", + "./_TemplatedMixin", + "./_Container", + "./_Contained", + "./_CssStateMixin", + "dojo/text!./templates/TreeNode.html", + "dojo/text!./templates/Tree.html", + "./tree/TreeStoreModel", + "./tree/ForestStoreModel", + "./tree/_dndSelector" +], function(array, connect, cookie, declare, Deferred, DeferredList, + dom, domClass, domGeometry, domStyle, event, fxUtils, kernel, keys, lang, topic, + focus, registry, manager, _Widget, _TemplatedMixin, _Container, _Contained, _CssStateMixin, + treeNodeTemplate, treeTemplate, TreeStoreModel, ForestStoreModel, _dndSelector){ + +/*===== + var _Widget = dijit._Widget; + var _TemplatedMixin = dijit._TemplatedMixin; + var _CssStateMixin = dijit._CssStateMixin; + var _Container = dijit._Container; + var _Contained = dijit._Contained; +=====*/ + +// module: +// dijit/Tree +// summary: +// dijit.Tree widget, and internal dijit._TreeNode widget + + +var TreeNode = declare( + "dijit._TreeNode", + [_Widget, _TemplatedMixin, _Container, _Contained, _CssStateMixin], +{ + // summary: + // Single node within a tree. This class is used internally + // by Tree and should not be accessed directly. + // tags: + // private + + // item: [const] 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: "", + _setLabelAttr: {node: "labelNode", type: "innerText"}, + + // 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", + + templateString: treeNodeTemplate, + + baseClass: "dijitTreeNode", + + // For hover effect for tree node, and focus effect for label + cssStateNodes: { + rowNode: "dijitTreeRow", + labelNode: "dijitTreeLabel" + }, + + // Tooltip is defined in _WidgetBase but we need to handle the mapping to DOM here + _setTooltipAttr: {node: "rowNode", type: "attribute", attribute: "title"}, + + buildRendering: function(){ + this.inherited(arguments); + + // set expand icon for leaf + this._setExpando(); + + // set icon and label class based on item + this._updateItemClasses(this.item); + + if(this.isExpandable){ + this.labelNode.setAttribute("aria-expanded", this.isExpanded); + } + + //aria-selected should be false on all selectable elements. + this.setSelected(false); + }, + + _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. + + // Math.max() is to prevent negative padding on hidden root node (when indent == -1) + var pixels = (Math.max(indent, 0) * this.tree._nodePixelIndent) + "px"; + + domStyle.set(this.domNode, "backgroundPosition", pixels + " 0px"); + domStyle.set(this.rowNode, this.isLeftToRight() ? "paddingLeft" : "paddingRight", pixels); + + array.forEach(this.getChildren(), function(child){ + child.set("indent", indent+1); + }); + + this._set("indent", indent); + }, + + 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; + } + this._applyClassAndStyle(item, "icon", "Icon"); + this._applyClassAndStyle(item, "label", "Label"); + this._applyClassAndStyle(item, "row", "Row"); + }, + + _applyClassAndStyle: function(item, lower, upper){ + // summary: + // Set the appropriate CSS classes and styles for labels, icons and rows. + // + // item: + // The data item. + // + // lower: + // The lower case attribute to use, e.g. 'icon', 'label' or 'row'. + // + // upper: + // The upper case attribute to use, e.g. 'Icon', 'Label' or 'Row'. + // + // tags: + // private + + var clsName = "_" + lower + "Class"; + var nodeName = lower + "Node"; + var oldCls = this[clsName]; + + this[clsName] = this.tree["get" + upper + "Class"](item, this.isExpanded); + domClass.replace(this[nodeName], this[clsName] || "", oldCls || ""); + + domStyle.set(this[nodeName], this.tree["get" + upper + "Style"](item, this.isExpanded) || {}); + }, + + _updateLayout: function(){ + // summary: + // Set appropriate CSS classes for this.domNode + // tags: + // private + var parent = this.getParent(); + if(!parent || !parent.rowNode || parent.rowNode.style.display == "none"){ + /* if we are hiding the root node then make every first level child look like a root node */ + domClass.add(this.domNode, "dijitTreeIsRoot"); + }else{ + domClass.toggle(this.domNode, "dijitTreeIsLast", !this.getNextSibling()); + } + }, + + _setExpando: function(/*Boolean*/ processing){ + // summary: + // Set the right image for the expando node + // tags: + // private + + var styles = ["dijitTreeExpandoLoading", "dijitTreeExpandoOpened", + "dijitTreeExpandoClosed", "dijitTreeExpandoLeaf"], + _a11yStates = ["*","-","+","*"], + idx = processing ? 0 : (this.isExpandable ? (this.isExpanded ? 1 : 2) : 3); + + // apply the appropriate class to the expando node + domClass.replace(this.expandoNode, styles[idx], styles); + + // provide a non-image based indicator for images-off mode + this.expandoNodeText.innerHTML = _a11yStates[idx]; + + }, + + expand: function(){ + // summary: + // Show my children + // returns: + // Deferred that fires when expansion is complete + + // If there's already an expand in progress or we are already expanded, just return + if(this._expandDeferred){ + return this._expandDeferred; // dojo.Deferred + } + + // cancel in progress collapse operation + this._wipeOut && this._wipeOut.stop(); + + // All the state information for when a node is expanded, maybe this should be + // set when the animation completes instead + this.isExpanded = true; + this.labelNode.setAttribute("aria-expanded", "true"); + if(this.tree.showRoot || this !== this.tree.rootNode){ + this.containerNode.setAttribute("role", "group"); + } + domClass.add(this.contentNode,'dijitTreeContentExpanded'); + this._setExpando(); + this._updateItemClasses(this.item); + if(this == this.tree.rootNode){ + this.tree.domNode.setAttribute("aria-expanded", "true"); + } + + var def, + wipeIn = fxUtils.wipeIn({ + node: this.containerNode, duration: manager.defaultDuration, + onEnd: function(){ + def.callback(true); + } + }); + + // Deferred that fires when expand is complete + def = (this._expandDeferred = new Deferred(function(){ + // Canceller + wipeIn.stop(); + })); + + wipeIn.play(); + + return def; // dojo.Deferred + }, + + collapse: function(){ + // summary: + // Collapse this node (if it's expanded) + + if(!this.isExpanded){ return; } + + // cancel in progress expand operation + if(this._expandDeferred){ + this._expandDeferred.cancel(); + delete this._expandDeferred; + } + + this.isExpanded = false; + this.labelNode.setAttribute("aria-expanded", "false"); + if(this == this.tree.rootNode){ + this.tree.domNode.setAttribute("aria-expanded", "false"); + } + domClass.remove(this.contentNode,'dijitTreeContentExpanded'); + this._setExpando(); + this._updateItemClasses(this.item); + + if(!this._wipeOut){ + this._wipeOut = fxUtils.wipeOut({ + node: this.containerNode, duration: manager.defaultDuration + }); + } + this._wipeOut.play(); + }, + + // 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. + // Also, if this.persist == true, expands any children that were previously + // opened. + // returns: + // Deferred object that fires after all previously opened children + // have been expanded again (or fires instantly if there are no such children). + + var tree = this.tree, + model = tree.model, + defs = []; // list of deferreds that need to fire before I am complete + + + // 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. + array.forEach(this.getChildren(), function(child){ + _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 + array.forEach(items, function(item){ + var id = model.getIdentity(item), + existingNodes = tree._itemNodesMap[id], + node; + if(existingNodes){ + for(var i=0;i<existingNodes.length;i++){ + if(existingNodes[i] && !existingNodes[i].getParent()){ + node = existingNodes[i]; + node.set('indent', this.indent+1); + break; + } + } + } + if(!node){ + node = this.tree._createTreeNode({ + item: item, + tree: tree, + isExpandable: model.mayHaveChildren(item), + label: tree.getLabel(item), + tooltip: tree.getTooltip(item), + dir: tree.dir, + lang: tree.lang, + textDir: tree.textDir, + indent: this.indent + 1 + }); + if(existingNodes){ + existingNodes.push(node); + }else{ + tree._itemNodesMap[id] = [node]; + } + } + this.addChild(node); + + // If node was previously opened then open it again now (this may trigger + // more data store accesses, recursively) + if(this.tree.autoExpand || this.tree._state(node)){ + defs.push(tree._expandNode(node)); + } + }, this); + + // note that updateLayout() needs to be called on each child after + // _all_ the children exist + array.forEach(this.getChildren(), function(child){ + child._updateLayout(); + }); + }else{ + this.isExpandable=false; + } + + if(this._setExpando){ + // change expando to/from dot or + icon, as appropriate + this._setExpando(false); + } + + // Set leaf icon or folder icon, as appropriate + this._updateItemClasses(this.item); + + // 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.setFocusable(true); + tree.lastFocused = fc; + }else{ + // fallback: no nodes in tree so focus on Tree <div> itself + tree.domNode.setAttribute("tabIndex", "0"); + } + } + + return new DeferredList(defs); // dojo.Deferred + }, + + getTreePath: function(){ + var node = this; + var path = []; + while(node && node !== this.tree.rootNode){ + path.unshift(node.item); + node = node.getParent(); + } + path.unshift(this.tree.rootNode.item); + + return path; + }, + + getIdentity: function(){ + return this.tree.model.getIdentity(this.item); + }, + + removeChild: function(/* treeNode */ node){ + this.inherited(arguments); + + var children = this.getChildren(); + if(children.length == 0){ + this.isExpandable = false; + this.collapse(); + } + + array.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(){ + // summary: + // Called when this row is focused (possibly programatically) + // Note that we aren't using _onFocus() builtin to dijit + // because it's called when focus is moved to a descendant TreeNode. + // tags: + // private + this.tree._onNodeFocus(this); + }, + + 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). + this.labelNode.setAttribute("aria-selected", selected); + domClass.toggle(this.rowNode, "dijitTreeRowSelected", selected); + }, + + setFocusable: function(/*Boolean*/ selected){ + // summary: + // A Tree has a (single) node that's focusable. + // Mark that this node is/isn't that currently focsuable 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). + + this.labelNode.setAttribute("tabIndex", selected ? "0" : "-1"); + }, + + _onClick: function(evt){ + // summary: + // Handler for onclick event on a node + // tags: + // private + this.tree._onClick(this, evt); + }, + _onDblClick: function(evt){ + // summary: + // Handler for ondblclick event on a node + // tags: + // private + this.tree._onDblClick(this, evt); + }, + + _onMouseEnter: function(evt){ + // summary: + // Handler for onmouseenter event on a node + // tags: + // private + this.tree._onNodeMouseEnter(this, evt); + }, + + _onMouseLeave: function(evt){ + // summary: + // Handler for onmouseenter event on a node + // tags: + // private + this.tree._onNodeMouseLeave(this, evt); + }, + + _setTextDirAttr: function(textDir){ + if(textDir &&((this.textDir != textDir) || !this._created)){ + this._set("textDir", textDir); + this.applyTextDir(this.labelNode, this.labelNode.innerText || this.labelNode.textContent || ""); + array.forEach(this.getChildren(), function(childNode){ + childNode.set("textDir", textDir); + }, this); + } + } +}); + +var Tree = declare("dijit.Tree", [_Widget, _TemplatedMixin], { + // 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"], + + // paths: String[][] or Item[][] + // Full paths from rootNode to selected nodes expressed as array of items or array of ids. + // Since setting the paths may be asynchronous (because ofwaiting on dojo.data), set("paths", ...) + // returns a Deferred to indicate when the set is complete. + paths: [], + + // path: String[] or Item[] + // Backward compatible singular variant of paths. + path: [], + + // selectedItems: [readonly] Item[] + // The currently selected items in this tree. + // This property can only be set (via set('selectedItems', ...)) when that item is already + // visible in the tree. (I.e. the tree has already been expanded to show that node.) + // Should generally use `paths` attribute to set the selected items instead. + selectedItems: null, + + // selectedItem: [readonly] Item + // Backward compatible singular variant of selectedItems. + selectedItem: null, + + // 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, + + templateString: treeTemplate, + + // persist: Boolean + // Enables/disables use of cookies for state saving. + persist: true, + + // autoExpand: Boolean + // Fully expand the tree on load. Overrides `persist`. + autoExpand: false, + + // dndController: [protected] Function|String + // Class to use as as the dnd controller. Specifying this class enables DnD. + // Generally you should specify this as dijit.tree.dndSource. + // Setting of dijit.tree._dndSelector handles selection only (no actual DnD). + dndController: _dndSelector, + + // 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: function(nodes, target, source){ + // summary: + // Returns objects passed to `Tree.model.newItem()` based on DnD nodes + // dropped onto the tree. Developer must override this method to enable + // dropping from external sources onto this Tree, unless the Tree.model's items + // happen to look like {id: 123, name: "Apple" } with no other attributes. + // description: + // For each node in nodes[], which came from source, create a hash of name/value + // pairs to be passed to Tree.model.newItem(). Returns array of those hashes. + // nodes: DomNode[] + // The DOMNodes dragged from the source container + // target: DomNode + // The target TreeNode.rowNode + // source: dojo.dnd.Source + // The source container the nodes were dragged from, perhaps another Tree or a plain dojo.dnd.Source + // returns: Object[] + // Array of name/value hashes for each new item to be added to the Tree, like: + // | [ + // | { id: 123, label: "apple", foo: "bar" }, + // | { id: 456, label: "pear", zaz: "bam" } + // | ] + // tags: + // extension + return [{}]; + }, + =====*/ + 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: 5, + + // 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, + + // _nodePixelIndent: Integer + // Number of pixels to indent tree nodes (relative to parent node). + // Default is 19 but can be overridden by setting CSS class dijitTreeIndent + // and calling resize() or startup() on tree after it's in the DOM. + _nodePixelIndent: 19, + + _publish: function(/*String*/ topicName, /*Object*/ message){ + // summary: + // Publish a message for this widget/topic + topic.publish(this.id, lang.mixin({tree: this, event: topicName}, message || {})); // publish + }, + + postMixInProperties: function(){ + this.tree = this; + + if(this.autoExpand){ + // There's little point in saving opened/closed state of nodes for a Tree + // that initially opens all it's nodes. + this.persist = false; + } + + this._itemNodesMap={}; + + if(!this.cookieName && this.id){ + this.cookieName = this.id + "SaveStateCookie"; + } + + this._loadDeferred = new Deferred(); + + 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(lang.isString(this.dndController)){ + this.dndController = lang.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; + kernel.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 = lang.hitch(this, "mayHaveChildren"); + } + + if(this.params.getItemChildren){ + modelParams.getChildren = lang.hitch(this, function(item, onComplete, onError){ + this.getItemChildren((this._v10Compat && item === this.model.root) ? null : item, onComplete, onError); + }); + } + this.model = new 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); + }, + + onLoad: function(){ + // summary: + // Called when tree finishes loading and expanding. + // description: + // If persist == true the loading may encompass many levels of fetches + // from the data store, each asynchronous. Waits for all to finish. + // tags: + // callback + }, + + _load: function(){ + // summary: + // Initial load of the tree. + // Load root node (possibly hidden) and it's children. + this.model.getRoot( + lang.hitch(this, function(item){ + var rn = (this.rootNode = this.tree._createTreeNode({ + item: item, + tree: this, + isExpandable: true, + label: this.label || this.getLabel(item), + textDir: this.textDir, + indent: this.showRoot ? 0 : -1 + })); + if(!this.showRoot){ + rn.rowNode.style.display="none"; + // if root is not visible, move tree role to the invisible + // root node's containerNode, see #12135 + this.domNode.setAttribute("role", "presentation"); + + rn.labelNode.setAttribute("role", "presentation"); + rn.containerNode.setAttribute("role", "tree"); + } + this.domNode.appendChild(rn.domNode); + var identity = this.model.getIdentity(item); + if(this._itemNodesMap[identity]){ + this._itemNodesMap[identity].push(rn); + }else{ + this._itemNodesMap[identity] = [rn]; + } + + rn._updateLayout(); // sets "dijitTreeIsRoot" CSS classname + + // load top level children and then fire onLoad() event + this._expandNode(rn).addCallback(lang.hitch(this, function(){ + this._loadDeferred.callback(true); + this.onLoad(); + })); + }), + function(err){ + console.error(this, ": error loading root: ", err); + } + ); + }, + + getNodesByItem: function(/*Item or id*/ item){ + // summary: + // Returns all tree nodes that refer to an item + // returns: + // Array of tree nodes that refer to passed item + + if(!item){ return []; } + var identity = lang.isString(item) ? item : this.model.getIdentity(item); + // return a copy so widget don't get messed up by changes to returned array + return [].concat(this._itemNodesMap[identity]); + }, + + _setSelectedItemAttr: function(/*Item or id*/ item){ + this.set('selectedItems', [item]); + }, + + _setSelectedItemsAttr: function(/*Items or ids*/ items){ + // summary: + // Select tree nodes related to passed items. + // WARNING: if model use multi-parented items or desired tree node isn't already loaded + // behavior is undefined. Use set('paths', ...) instead. + var tree = this; + this._loadDeferred.addCallback( lang.hitch(this, function(){ + var identities = array.map(items, function(item){ + return (!item || lang.isString(item)) ? item : tree.model.getIdentity(item); + }); + var nodes = []; + array.forEach(identities, function(id){ + nodes = nodes.concat(tree._itemNodesMap[id] || []); + }); + this.set('selectedNodes', nodes); + })); + }, + + _setPathAttr: function(/*Item[] || String[]*/ path){ + // summary: + // Singular variant of _setPathsAttr + if(path.length){ + return this.set("paths", [path]); + }else{ + // Empty list is interpreted as "select nothing" + return this.set("paths", []); + } + }, + + _setPathsAttr: function(/*Item[][] || String[][]*/ paths){ + // summary: + // Select the tree nodes identified by passed paths. + // paths: + // Array of arrays of items or item id's + // returns: + // Deferred to indicate when the set is complete + var tree = this; + + // We may need to wait for some nodes to expand, so setting + // each path will involve a Deferred. We bring those deferreds + // together witha DeferredList. + return new DeferredList(array.map(paths, function(path){ + var d = new Deferred(); + + // normalize path to use identity + path = array.map(path, function(item){ + return lang.isString(item) ? item : tree.model.getIdentity(item); + }); + + if(path.length){ + // Wait for the tree to load, if it hasn't already. + tree._loadDeferred.addCallback(function(){ selectPath(path, [tree.rootNode], d); }); + }else{ + d.errback("Empty path"); + } + return d; + })).addCallback(setNodes); + + function selectPath(path, nodes, def){ + // Traverse path; the next path component should be among "nodes". + var nextPath = path.shift(); + var nextNode = array.filter(nodes, function(node){ + return node.getIdentity() == nextPath; + })[0]; + if(!!nextNode){ + if(path.length){ + tree._expandNode(nextNode).addCallback(function(){ selectPath(path, nextNode.getChildren(), def); }); + }else{ + //Successfully reached the end of this path + def.callback(nextNode); + } + }else{ + def.errback("Could not expand path at " + nextPath); + } + } + + function setNodes(newNodes){ + //After all expansion is finished, set the selection to + //the set of nodes successfully found. + tree.set("selectedNodes", array.map( + array.filter(newNodes,function(x){return x[0];}), + function(x){return x[1];})); + } + }, + + _setSelectedNodeAttr: function(node){ + this.set('selectedNodes', [node]); + }, + _setSelectedNodesAttr: function(nodes){ + this._loadDeferred.addCallback( lang.hitch(this, function(){ + this.dndController.setSelection(nodes); + })); + }, + + + ////////////// 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(/*===== parentItem, 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(/*===== item, opened =====*/){ + // summary: + // Overridable function to return CSS class name to display label + // item: dojo.data.Item + // opened: Boolean + // returns: String + // CSS class name + // tags: + // extension + }, + + getRowClass: function(/*===== item, opened =====*/){ + // summary: + // Overridable function to return CSS class name to display row + // item: dojo.data.Item + // opened: Boolean + // returns: String + // CSS class name + // tags: + // extension + }, + + getIconStyle: function(/*===== item, opened =====*/){ + // summary: + // Overridable function to return CSS styles to display icon + // item: dojo.data.Item + // opened: Boolean + // returns: Object + // Object suitable for input to dojo.style() like {backgroundImage: "url(...)"} + // tags: + // extension + }, + + getLabelStyle: function(/*===== item, opened =====*/){ + // summary: + // Overridable function to return CSS styles to display label + // item: dojo.data.Item + // opened: Boolean + // returns: + // Object suitable for input to dojo.style() like {color: "red", background: "green"} + // tags: + // extension + }, + + getRowStyle: function(/*===== item, opened =====*/){ + // summary: + // Overridable function to return CSS styles to display row + // item: dojo.data.Item + // opened: Boolean + // returns: + // Object suitable for input to dojo.style() like {background-color: "#bbb"} + // tags: + // extension + }, + + getTooltip: function(/*dojo.data.Item*/ /*===== item =====*/){ + // summary: + // Overridable function to get the tooltip for a tree node (given the item) + // tags: + // extension + return ""; // String + }, + + /////////// Keyboard and Mouse handlers //////////////////// + + _onKeyPress: function(/*Event*/ e){ + // summary: + // Translates keypress events into commands for the controller + if(e.altKey){ return; } + var treeNode = registry.getEnclosingWidget(e.target); + if(!treeNode){ return; } + + var key = e.charOrCode; + if(typeof key == "string" && key != " "){ // handle printables (letter navigation) + // Check for key navigation. + if(!e.altKey && !e.ctrlKey && !e.shiftKey && !e.metaKey){ + this._onLetterKeyNav( { node: treeNode, key: key.toLowerCase() } ); + event.stop(e); + } + }else{ // handle non-printables (arrow keys) + // clear record of recent printables (being saved for multi-char letter navigation), + // because "a", down-arrow, "b" shouldn't search for "ab" + if(this._curSearch){ + clearTimeout(this._curSearch.timer); + delete this._curSearch; + } + + var map = this._keyHandlerMap; + if(!map){ + // setup table mapping keys to events + map = {}; + map[keys.ENTER]="_onEnterKey"; + //On WebKit based browsers, the combination ctrl-enter + //does not get passed through. To allow accessible + //multi-select on those browsers, the space key is + //also used for selection. + map[keys.SPACE]= map[" "] = "_onEnterKey"; + map[this.isLeftToRight() ? keys.LEFT_ARROW : keys.RIGHT_ARROW]="_onLeftArrow"; + map[this.isLeftToRight() ? keys.RIGHT_ARROW : keys.LEFT_ARROW]="_onRightArrow"; + map[keys.UP_ARROW]="_onUpArrow"; + map[keys.DOWN_ARROW]="_onDownArrow"; + map[keys.HOME]="_onHomeKey"; + map[keys.END]="_onEndKey"; + this._keyHandlerMap = map; + } + if(this._keyHandlerMap[key]){ + this[this._keyHandlerMap[key]]( { node: treeNode, item: treeNode.item, evt: e } ); + event.stop(e); + } + } + }, + + _onEnterKey: function(/*Object*/ message){ + this._publish("execute", { item: message.item, node: message.node } ); + this.dndController.userSelect(message.node, connect.isCopyKey( message.evt ), message.evt.shiftKey); + this.onClick(message.item, message.node, message.evt); + }, + + _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(){ + // 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); + } + }, + + // multiCharSearchDuration: Number + // If multiple characters are typed where each keystroke happens within + // multiCharSearchDuration of the previous keystroke, + // search for nodes matching all the keystrokes. + // + // For example, typing "ab" will search for entries starting with + // "ab" unless the delay between "a" and "b" is greater than multiCharSearchDuration. + multiCharSearchDuration: 250, + + _onLetterKeyNav: function(message){ + // summary: + // Called when user presses a prinatable key; search for node starting with recently typed letters. + // message: Object + // Like { node: TreeNode, key: 'a' } where key is the key the user pressed. + + // Branch depending on whether this key starts a new search, or modifies an existing search + var cs = this._curSearch; + if(cs){ + // We are continuing a search. Ex: user has pressed 'a', and now has pressed + // 'b', so we want to search for nodes starting w/"ab". + cs.pattern = cs.pattern + message.key; + clearTimeout(cs.timer); + }else{ + // We are starting a new search + cs = this._curSearch = { + pattern: message.key, + startNode: message.node + }; + } + + // set/reset timer to forget recent keystrokes + var self = this; + cs.timer = setTimeout(function(){ + delete self._curSearch; + }, this.multiCharSearchDuration); + + // Navigate to TreeNode matching keystrokes [entered so far]. + var node = cs.startNode; + do{ + node = this._getNextNode(node); + //check for last node, jump to first node if necessary + if(!node){ + node = this._getRootOrFirstNode(); + } + }while(node !== cs.startNode && (node.label.toLowerCase().substr(0, cs.pattern.length) != cs.pattern)); + if(node && node.isTreeNode){ + // no need to set focus if back where we started + if(node !== cs.startNode){ + this.focusNode(node); + } + } + }, + + isExpandoNode: function(node, widget){ + // summary: + // check whether a dom node is the expandoNode for a particular TreeNode widget + return dom.isDescendant(node, widget.expandoNode); + }, + _onClick: function(/*TreeNode*/ nodeWidget, /*Event*/ e){ + // summary: + // Translates click events into commands for the controller to process + + var domElement = e.target, + isExpandoClick = this.isExpandoNode(domElement, nodeWidget); + + if( (this.openOnClick && nodeWidget.isExpandable) || isExpandoClick ){ + // 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, evt: e } ); + this.onClick(nodeWidget.item, nodeWidget, e); + this.focusNode(nodeWidget); + } + event.stop(e); + }, + _onDblClick: function(/*TreeNode*/ nodeWidget, /*Event*/ e){ + // summary: + // Translates double-click events into commands for the controller to process + + var domElement = e.target, + isExpandoClick = (domElement == nodeWidget.expandoNode || domElement == nodeWidget.expandoNodeText); + + if( (this.openOnDblClick && nodeWidget.isExpandable) ||isExpandoClick ){ + // 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, evt: e } ); + this.onDblClick(nodeWidget.item, nodeWidget, e); + this.focusNode(nodeWidget); + } + event.stop(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(/*===== item, node, evt =====*/){ + // summary: + // Callback when a tree node is clicked + // item: dojo.data.Item + // node: TreeNode + // evt: Event + // tags: + // callback + }, + onDblClick: function(/*===== item, node, evt =====*/){ + // summary: + // Callback when a tree node is double-clicked + // item: dojo.data.Item + // node: TreeNode + // evt: Event + // tags: + // callback + }, + onOpen: function(/*===== item, node =====*/){ + // summary: + // Callback when a node is opened + // item: dojo.data.Item + // node: TreeNode + // tags: + // callback + }, + onClose: function(/*===== item, node =====*/){ + // summary: + // Callback when a node is closed + // item: dojo.data.Item + // node: TreeNode + // 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._expandNodeDeferred){ + delete node._expandNodeDeferred; + } + + 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); + + this._state(node, false); + } + }, + + _expandNode: function(/*_TreeNode*/ node, /*Boolean?*/ recursive){ + // summary: + // Called when the user has requested to expand the node + // recursive: + // Internal flag used when _expandNode() calls itself, don't set. + // returns: + // Deferred that fires when the node is loaded and opened and (if persist=true) all it's descendants + // that were previously opened too + + if(node._expandNodeDeferred && !recursive){ + // there's already an expand in progress (or completed), so just return + return node._expandNodeDeferred; // dojo.Deferred + } + + var model = this.model, + item = node.item, + _this = this; + + switch(node.state){ + case "UNCHECKED": + // need to load all the children, and then expand + node.markProcessing(); + + // Setup deferred to signal when the load and expand are finished. + // Save that deferred in this._expandDeferred as a flag that operation is in progress. + var def = (node._expandNodeDeferred = new Deferred()); + + // Get the children + model.getChildren( + item, + function(items){ + node.unmarkProcessing(); + + // Display the children and also start expanding any children that were previously expanded + // (if this.persist == true). The returned Deferred will fire when those expansions finish. + var scid = node.setChildItems(items); + + // Call _expandNode() again but this time it will just to do the animation (default branch). + // The returned Deferred will fire when the animation completes. + // TODO: seems like I can avoid recursion and just use a deferred to sequence the events? + var ed = _this._expandNode(node, true); + + // After the above two tasks (setChildItems() and recursive _expandNode()) finish, + // signal that I am done. + scid.addCallback(function(){ + ed.addCallback(function(){ + def.callback(); + }) + }); + }, + function(err){ + console.error(_this, ": error loading root children: ", err); + } + ); + break; + + default: // "LOADED" + // data is already loaded; just expand node + def = (node._expandNodeDeferred = node.expand()); + + this.onOpen(node.item, node); + + this._state(node, true); + } + + return def; // dojo.Deferred + }, + + ////////////////// 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 + focus.focus(node.labelNode); + }, + + _onNodeFocus: function(/*dijit._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 && node != this.lastFocused){ + if(this.lastFocused && !this.lastFocused._destroyed){ + // mark that the previously focsable node is no longer focusable + this.lastFocused.setFocusable(false); + } + + // mark that the new node is the currently selected one + node.setFocusable(true); + this.lastFocused = node; + } + }, + + _onNodeMouseEnter: function(/*dijit._Widget*/ /*===== node =====*/){ + // summary: + // Called when mouse is over a node (onmouseenter event), + // this is monitored by the DND code + }, + + _onNodeMouseLeave: function(/*dijit._Widget*/ /*===== node =====*/){ + // summary: + // Called when mouse leaves a node (onmouseleave event), + // this is monitored by the DND code + }, + + //////////////// 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), + nodes = this._itemNodesMap[identity]; + + if(nodes){ + var label = this.getLabel(item), + tooltip = this.getTooltip(item); + array.forEach(nodes, function(node){ + node.set({ + item: item, // theoretically could be new JS Object representing same item + label: label, + tooltip: tooltip + }); + 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), + parentNodes = this._itemNodesMap[identity]; + + if(parentNodes){ + array.forEach(parentNodes,function(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), + nodes = this._itemNodesMap[identity]; + + if(nodes){ + array.forEach(nodes,function(node){ + // Remove node from set of selected nodes (if it's selected) + this.dndController.removeTreeNode(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(); + }, this); + delete this._itemNodesMap[identity]; + } + }, + + /////////////// Miscellaneous funcs + + _initState: function(){ + // summary: + // Load in which nodes should be opened automatically + this._openedNodes = {}; + if(this.persist && this.cookieName){ + var oreo = cookie(this.cookieName); + if(oreo){ + array.forEach(oreo.split(','), function(item){ + this._openedNodes[item] = true; + }, this); + } + } + }, + _state: function(node, expanded){ + // summary: + // Query or set expanded state for an node + if(!this.persist){ + return false; + } + var path = array.map(node.getTreePath(), function(item){ + return this.model.getIdentity(item); + }, this).join("/"); + if(arguments.length === 1){ + return this._openedNodes[path]; + }else{ + if(expanded){ + this._openedNodes[path] = true; + }else{ + delete this._openedNodes[path]; + } + var ary = []; + for(var id in this._openedNodes){ + ary.push(id); + } + cookie(this.cookieName, ary.join(","), {expires:365}); + } + }, + + destroy: function(){ + if(this._curSearch){ + clearTimeout(this._curSearch.timer); + delete this._curSearch; + } + if(this.rootNode){ + this.rootNode.destroyRecursive(); + } + if(this.dndController && !lang.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(); + }, + + resize: function(changeSize){ + if(changeSize){ + domGeometry.setMarginBox(this.domNode, changeSize); + } + + // The only JS sizing involved w/tree is the indentation, which is specified + // in CSS and read in through this dummy indentDetector node (tree must be + // visible and attached to the DOM to read this) + this._nodePixelIndent = domGeometry.position(this.tree.indentDetector).w; + + if(this.tree.rootNode){ + // If tree has already loaded, then reset indent for all the nodes + this.tree.rootNode.set('indent', this.showRoot ? 0 : -1); + } + }, + + _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 TreeNode(args); + }, + + _setTextDirAttr: function(textDir){ + if(textDir && this.textDir!= textDir){ + this._set("textDir",textDir); + this.rootNode.set("textDir", textDir); + } + } +}); + +Tree._TreeNode = TreeNode; // for monkey patching + +return Tree; +}); |