/**
+ * @class Ext.data.Tree
+ *
* This class is used as a container for a series of nodes. The nodes themselves maintain
* the relationship between parent/child. The tree itself acts as a manager. It gives functionality
- * to retrieve a node by its identifier: {@link #getNodeById}.
+ * to retrieve a node by its identifier: {@link #getNodeById}.
*
- * The tree also relays events from any of it's child nodes, allowing them to be handled in a
- * centralized fashion. In general this class is not used directly, rather used internally
+ * The tree also relays events from any of it's child nodes, allowing them to be handled in a
+ * centralized fashion. In general this class is not used directly, rather used internally
* by other parts of the framework.
*
- * @constructor
- * @param {Node} root (optional) The root node
*/
Ext.define('Ext.data.Tree', {
alias: 'data.tree',
-
+
mixins: {
observable: "Ext.util.Observable"
},
- /**
- * The root node for this tree
- * @type Node
+ /**
+ * @property {Ext.data.NodeInterface}
+ * The root node for this tree
*/
root: null,
-
+
+ /**
+ * Creates new Tree object.
+ * @param {Ext.data.NodeInterface} root (optional) The root node
+ */
constructor: function(root) {
var me = this;
+
- me.nodeHash = {};
me.mixins.observable.constructor.call(me);
-
+
if (root) {
me.setRootNode(root);
}
},
- /**
+ /**
* Returns the root node for this tree.
* @return {Ext.data.NodeInterface}
*/
@@ -45,137 +64,102 @@ Ext.define('Ext.data.Tree', {
return this.root;
},
- /**
+ /**
* Sets the root node for this tree.
* @param {Ext.data.NodeInterface} node
* @return {Ext.data.NodeInterface} The root node
*/
setRootNode : function(node) {
var me = this;
-
+
me.root = node;
Ext.data.NodeInterface.decorate(node);
-
+
if (me.fireEvent('beforeappend', null, node) !== false) {
node.set('root', true);
node.updateInfo();
-
+
me.relayEvents(node, [
- /**
+ /**
* @event append
- * Fires when a new child node is appended to a node in this tree.
- * @param {Tree} tree The owner tree
- * @param {Node} parent The parent node
- * @param {Node} node The newly appended node
- * @param {Number} index The index of the newly appended node
+ * @alias Ext.data.NodeInterface#append
*/
"append",
- /**
+ /**
* @event remove
- * Fires when a child node is removed from a node in this tree.
- * @param {Tree} tree The owner tree
- * @param {Node} parent The parent node
- * @param {Node} node The child node removed
+ * @alias Ext.data.NodeInterface#remove
*/
"remove",
- /**
+ /**
* @event move
- * Fires when a node is moved to a new location in the tree
- * @param {Tree} tree The owner tree
- * @param {Node} node The node moved
- * @param {Node} oldParent The old parent of this node
- * @param {Node} newParent The new parent of this node
- * @param {Number} index The index it was moved to
+ * @alias Ext.data.NodeInterface#move
*/
"move",
- /**
+ /**
* @event insert
- * Fires when a new child node is inserted in a node in this tree.
- * @param {Tree} tree The owner tree
- * @param {Node} parent The parent node
- * @param {Node} node The child node inserted
- * @param {Node} refNode The child node the node was inserted before
+ * @alias Ext.data.NodeInterface#insert
*/
"insert",
- /**
+ /**
* @event beforeappend
- * Fires before a new child is appended to a node in this tree, return false to cancel the append.
- * @param {Tree} tree The owner tree
- * @param {Node} parent The parent node
- * @param {Node} node The child node to be appended
+ * @alias Ext.data.NodeInterface#beforeappend
*/
"beforeappend",
- /**
+ /**
* @event beforeremove
- * Fires before a child is removed from a node in this tree, return false to cancel the remove.
- * @param {Tree} tree The owner tree
- * @param {Node} parent The parent node
- * @param {Node} node The child node to be removed
+ * @alias Ext.data.NodeInterface#beforeremove
*/
"beforeremove",
- /**
+ /**
* @event beforemove
- * Fires before a node is moved to a new location in the tree. Return false to cancel the move.
- * @param {Tree} tree The owner tree
- * @param {Node} node The node being moved
- * @param {Node} oldParent The parent of the node
- * @param {Node} newParent The new parent the node is moving to
- * @param {Number} index The index it is being moved to
+ * @alias Ext.data.NodeInterface#beforemove
*/
"beforemove",
- /**
+ /**
* @event beforeinsert
- * Fires before a new child is inserted in a node in this tree, return false to cancel the insert.
- * @param {Tree} tree The owner tree
- * @param {Node} parent The parent node
- * @param {Node} node The child node to be inserted
- * @param {Node} refNode The child node the node is being inserted before
+ * @alias Ext.data.NodeInterface#beforeinsert
*/
"beforeinsert",
- /**
+ /**
* @event expand
- * Fires when this node is expanded.
- * @param {Node} this The expanding node
+ * @alias Ext.data.NodeInterface#expand
*/
"expand",
- /**
+ /**
* @event collapse
- * Fires when this node is collapsed.
- * @param {Node} this The collapsing node
+ * @alias Ext.data.NodeInterface#collapse
*/
"collapse",
- /**
+ /**
* @event beforeexpand
- * Fires before this node is expanded.
- * @param {Node} this The expanding node
+ * @alias Ext.data.NodeInterface#beforeexpand
*/
"beforeexpand",
- /**
+ /**
* @event beforecollapse
- * Fires before this node is collapsed.
- * @param {Node} this The collapsing node
+ * @alias Ext.data.NodeInterface#beforecollapse
*/
"beforecollapse" ,
- /**
+ /**
* @event rootchange
* Fires whenever the root node is changed in the tree.
* @param {Ext.data.Model} root The new root
*/
"rootchange"
]);
-
+
node.on({
scope: me,
insert: me.onNodeInsert,
@@ -183,24 +167,25 @@ Ext.define('Ext.data.Tree', {
remove: me.onNodeRemove
});
- me.registerNode(node);
+ me.nodeHash = {};
+ me.registerNode(node);
me.fireEvent('append', null, node);
me.fireEvent('rootchange', node);
}
-
+
return node;
},
-
- /**
+
+ /**
* Flattens all the nodes in the tree into an array.
* @private
- * @return {Array} The flattened nodes.
+ * @return {Ext.data.NodeInterface[]} The flattened nodes.
*/
flatten: function(){
var nodes = [],
hash = this.nodeHash,
key;
-
+
for (key in hash) {
if (hash.hasOwnProperty(key)) {
nodes.push(hash[key]);
@@ -208,38 +193,38 @@ Ext.define('Ext.data.Tree', {
}
return nodes;
},
-
- /**
+
+ /**
* Fired when a node is inserted into the root or one of it's children
* @private
* @param {Ext.data.NodeInterface} parent The parent node
* @param {Ext.data.NodeInterface} node The inserted node
*/
onNodeInsert: function(parent, node) {
- this.registerNode(node);
+ this.registerNode(node, true);
},
-
- /**
+
+ /**
* Fired when a node is appended into the root or one of it's children
* @private
* @param {Ext.data.NodeInterface} parent The parent node
* @param {Ext.data.NodeInterface} node The appended node
*/
onNodeAppend: function(parent, node) {
- this.registerNode(node);
+ this.registerNode(node, true);
},
-
- /**
+
+ /**
* Fired when a node is removed from the root or one of it's children
* @private
* @param {Ext.data.NodeInterface} parent The parent node
* @param {Ext.data.NodeInterface} node The removed node
*/
onNodeRemove: function(parent, node) {
- this.unregisterNode(node);
+ this.unregisterNode(node, true);
},
- /**
+ /**
* Gets a node in this tree by its id.
* @param {String} id
* @return {Ext.data.NodeInterface} The match node.
@@ -248,25 +233,37 @@ Ext.define('Ext.data.Tree', {
return this.nodeHash[id];
},
- /**
+ /**
* Registers a node with the tree
* @private
* @param {Ext.data.NodeInterface} The node to register
+ * @param {Boolean} [includeChildren] True to unregister any child nodes
*/
- registerNode : function(node) {
+ registerNode : function(node, includeChildren) {
this.nodeHash[node.getId() || node.internalId] = node;
+ if (includeChildren === true) {
+ node.eachChild(function(child){
+ this.registerNode(child, true);
+ }, this);
+ }
},
- /**
+ /**
* Unregisters a node with the tree
* @private
* @param {Ext.data.NodeInterface} The node to unregister
+ * @param {Boolean} [includeChildren] True to unregister any child nodes
*/
- unregisterNode : function(node) {
+ unregisterNode : function(node, includeChildren) {
delete this.nodeHash[node.getId() || node.internalId];
+ if (includeChildren === true) {
+ node.eachChild(function(child){
+ this.unregisterNode(child, true);
+ }, this);
+ }
},
-
- /**
+
+ /**
* Sorts this tree
* @private
* @param {Function} sorterFn The function to use for sorting
@@ -275,8 +272,8 @@ Ext.define('Ext.data.Tree', {
sort: function(sorterFn, recursive) {
this.getRootNode().sort(sorterFn, recursive);
},
-
- /**
+
+ /**
* Filters this tree
* @private
* @param {Function} sorterFn The function to use for filtering
@@ -285,4 +282,6 @@ Ext.define('Ext.data.Tree', {
filter: function(filters, recursive) {
this.getRootNode().filter(filters, recursive);
}
-});