Properties Methods Events Config Options Direct Link

    Observable
      Node
        TreeNode
          AsyncTreeNode

# Class Ext.tree.AsyncTreeNode

Package: | Ext.tree
Defined In: | AsyncTreeNode.js
Class: | AsyncTreeNode
Extends: | TreeNode

## Config Options

Config Options | Defined By
--- | ---
| allowChildren : Boolean False to not allow this node to have child nodes (defaults to true) | TreeNode
| allowDrag : Boolean False to make this node undraggable if draggable = true (defaults to true) | TreeNode
| allowDrop : Boolean False if this node cannot have child nodes dropped on it (defaults to true) | TreeNode
| checked : Boolean True to render a checked checkbox for this node, false to render an unchecked checkbox (defaults to undefined with no... True to render a checked checkbox for this node, false to render an unchecked checkbox (defaults to undefined with no checkbox rendered) | TreeNode
| cls : String A css class to be added to the node | TreeNode
| disabled : Boolean true to start the node disabled | TreeNode
| draggable : Boolean True to make this node draggable (defaults to false) | TreeNode
| expandable : Boolean If set to true, the node will always show a plus/minus icon, even when empty | TreeNode
| expanded : Boolean true to start the node expanded | TreeNode
| href : String URL of the link used for the node (defaults to #) | TreeNode
| hrefTarget : String target frame for the link | TreeNode
| icon : String The path to an icon for the node. The preferred way to do this is to use the cls or iconCls attributes and add the ic... The path to an icon for the node. The preferred way to do this is to use the cls or iconCls attributes and add the icon via a CSS background image. | TreeNode
| iconCls : String A css class to be added to the nodes icon element for applying css background images | TreeNode
| id : String The id for this node. If one is not specified, one is generated. | Node
| isTarget : Boolean False to not allow this node to act as a drop target (defaults to true) | TreeNode
| leaf : Boolean true if this node is a leaf and does not have children | Node
| listeners : Object A config object containing one or more event handlers to be added to this object during initialization. This should b... A config object containing one or more event handlers to be added to this object during initialization. This should be a valid listeners config object as specified in the addListener example for attaching multiple handlers at once. | Observable
| loader : TreeLoader A TreeLoader to be used by this node (defaults to the loader defined on the tree) | AsyncTreeNode
| qtip : String An Ext QuickTip for the node | TreeNode
| qtipCfg : String An Ext QuickTip config for the node (used instead of qtip) | TreeNode
| singleClickExpand : Boolean True for single click expand on this node | TreeNode
| text : String The text for this node | TreeNode
| uiProvider : Function A UI class to use for this node (defaults to Ext.tree.TreeNodeUI) | TreeNode

## Public Properties

Property | Defined By
--- | ---
| attributes : Object The attributes supplied for the node. You can use this property to access any custom attributes you supplied. | Node
| childNodes : Array All child nodes of this node. | Node
| disabled : Boolean True if this node is disabled. | TreeNode
| firstChild : Node The first direct child node of this node, or null if this node has no child nodes. | Node
| id : String The node id. | Node
| lastChild : Node The last direct child node of this node, or null if this node has no child nodes. | Node
| loader : TreeLoader The loader used by this node (defaults to using the tree's defined loader) | AsyncTreeNode
| nextSibling : Node The node immediately following this node in the tree, or null if there is no sibling node. | Node
| parentNode : Node The parent node for this node. | Node
| previousSibling : Node The node immediately preceding this node in the tree, or null if there is no sibling node. | Node
| text : String Read-only. The text for this node. To change it use setText(). | TreeNode
| ui : TreeNodeUI Read-only. The UI for this node | TreeNode

## Public Methods

Method | Defined By
--- | ---

AsyncTreeNode( `Object/String attributes` )
Parameters:

- `attributes` : Object/String
  The attributes/config for the node or just a string with the text for the node

Returns:

- ``

AsyncTreeNode

addEvents( `Object object` ) : void
Used to define events on this Observable
Used to define events on this Observable
Parameters:

- `object` : Object
  The object with the events defined

Returns:

- `void`

Observable

addListener( `String eventName`, `Function handler`, [`Object scope`], [`Object options`] ) : void
Appends an event handler to this component
Appends an event handler to this component
Parameters:

- `eventName` : String
  The type of event to listen for
- `handler` : Function
  The method the event invokes
- `scope` : Object
  (optional) The scope in which to execute the handler function. The handler function's "this" context.
- `options` : Object
  (optional) An object containing handler configuration properties. This may contain any of the following properties:
  - scope : Object

    The scope in which to execute the handler function. The handler function's "this" context.

  - delay : Number

    The number of milliseconds to delay the invocation of the handler after the event fires.

  - single : Boolean

    True to add a handler to handle just the next firing of the event, and then remove itself.

  - buffer {Number} Causes the handler to be scheduled to run in an Ext.util.DelayedTask delayed by the specified number of milliseconds. If the event fires again within that time, the original handler is not invoked, but the new handler is scheduled in its place.

  Combining Options
  Using the options argument, it is possible to combine different types of listeners:
  A normalized, delayed, one-time listener that auto stops the event and passes a custom argument (forumId)

      el.on('click', this.onClick, this, {
          single: true,
          delay: 100,
          forumId: 4
      });

  Attaching multiple handlers in 1 call
  The method also allows for a single argument to be passed which is a config object containing properties which specify multiple handlers.

      foo.on({
          'click' : {
              fn: this.onClick,
              scope: this,
              delay: 100
          },
          'mouseover' : {
              fn: this.onMouseOver,
              scope: this
          },
          'mouseout' : {
              fn: this.onMouseOut,
              scope: this
          }
      });

  Or a shorthand syntax:

      foo.on({
          'click' : this.onClick,
          'mouseover' : this.onMouseOver,
          'mouseout' : this.onMouseOut,
           scope: this
      });

Returns:

- `void`

Observable

appendChild( `Node/Array node` ) : Node
Insert node(s) as the last child node of this node.
Insert node(s) as the last child node of this node.
Parameters:

- `node` : Node/Array
  The node or Array of nodes to append

Returns:

- `Node`
  The appended node if single append, or null if an array was passed

Node

bubble( `Function fn`, [`Object scope`], [`Array args`] ) : void
Bubbles up the tree from this node, calling the specified function with each node. The scope (this) of function call ...
Bubbles up the tree from this node, calling the specified function with each node. The scope (this) of function call will be the scope provided or the current node. The arguments to the function will be the args provided or the current node. If the function returns false at any point, the bubble is stopped.
Parameters:

- `fn` : Function
  The function to call
- `scope` : Object
  (optional) The scope of the function (defaults to current node)
- `args` : Array
  (optional) The args to call the function with (default to passing the current node)

Returns:

- `void`

Node

cascade( `Function fn`, [`Object scope`], [`Array args`] ) : void
Cascades down the tree from this node, calling the specified function with each node. The scope (this) of function ca...
Cascades down the tree from this node, calling the specified function with each node. The scope (this) of function call will be the scope provided or the current node. The arguments to the function will be the args provided or the current node. If the function returns false at any point, the cascade is stopped on that branch.
Parameters:

- `fn` : Function
  The function to call
- `scope` : Object
  (optional) The scope of the function (defaults to current node)
- `args` : Array
  (optional) The args to call the function with (default to passing the current node)

Returns:

- `void`

Node

collapse( [`Boolean deep`], [`Boolean anim`] ) : void
Collapse this node.
Collapse this node.
Parameters:

- `deep` : Boolean
  (optional) True to collapse all children as well
- `anim` : Boolean
  (optional) false to cancel the default animation

Returns:

- `void`

TreeNode

collapseChildNodes( [`Boolean deep`] ) : void
Collapse all child nodes
Collapse all child nodes
Parameters:

- `deep` : Boolean
  (optional) true if the child nodes should also collapse their child nodes

Returns:

- `void`

TreeNode

contains( `Node node` ) : Boolean
Returns true if this node is an ancestor (at any point) of the passed node.
Returns true if this node is an ancestor (at any point) of the passed node.
Parameters:

- `node` : Node

Returns:

- `Boolean`

Node

disable() : void
Disables this node
Disables this node
Parameters:

- None.

Returns:

- `void`

TreeNode

eachChild( `Function fn`, [`Object scope`], [`Array args`] ) : void
Interates the child nodes of this node, calling the specified function with each node. The scope (this) of function c...
Interates the child nodes of this node, calling the specified function with each node. The scope (this) of function call will be the scope provided or the current node. The arguments to the function will be the args provided or the current node. If the function returns false at any point, the iteration stops.
Parameters:

- `fn` : Function
  The function to call
- `scope` : Object
  (optional) The scope of the function (defaults to current node)
- `args` : Array
  (optional) The args to call the function with (default to passing the current node)

Returns:

- `void`

Node

enable() : void
Enables this node
Enables this node
Parameters:

- None.

Returns:

- `void`

TreeNode

ensureVisible() : void
Ensures all parent nodes are expanded, and if necessary, scrolls the node into view.
Ensures all parent nodes are expanded, and if necessary, scrolls the node into view.
Parameters:

- None.

Returns:

- `void`

TreeNode

expand( [`Boolean deep`], [`Boolean anim`], [`Function callback`] ) : void
Expand this node.
Expand this node.
Parameters:

- `deep` : Boolean
  (optional) True to expand all children as well
- `anim` : Boolean
  (optional) false to cancel the default animation
- `callback` : Function
  (optional) A callback to be called when expanding this node completes (does not wait for deep expand to complete). Called with 1 parameter, this node.

Returns:

- `void`

TreeNode

expandChildNodes( [`Boolean deep`] ) : void
Expand all child nodes
Expand all child nodes
Parameters:

- `deep` : Boolean
  (optional) true if the child nodes should also expand their child nodes

Returns:

- `void`

TreeNode

findChild( `String attribute`, `Mixed value` ) : Node
Finds the first child that has the attribute with the specified value.
Finds the first child that has the attribute with the specified value.
Parameters:

- `attribute` : String
  The attribute name
- `value` : Mixed
  The value to search for

Returns:

- `Node`
  The found child or null if none was found

Node

findChildBy( `Function fn`, [`Object scope`] ) : Node
Finds the first child by a custom function. The child matches if the function passed returns true.
Finds the first child by a custom function. The child matches if the function passed returns true.
Parameters:

- `fn` : Function
- `scope` : Object
  (optional)

Returns:

- `Node`
  The found child or null if none was found

Node

fireEvent( `String eventName`, `Object... args` ) : Boolean
Fires the specified event with the passed parameters (minus the event name).
Fires the specified event with the passed parameters (minus the event name).
Parameters:

- `eventName` : String
- `args` : Object...
  Variable number of parameters are passed to handlers

Returns:

- `Boolean`
  returns false if any of the handlers return false otherwise it returns true

Observable

getDepth() : Number
Returns depth of this node (the root node has a depth of 0)
Returns depth of this node (the root node has a depth of 0)
Parameters:

- None.

Returns:

- `Number`

Node

getOwnerTree() : Tree
Returns the tree this node is in.
Returns the tree this node is in.
Parameters:

- None.

Returns:

- `Tree`

Node

getPath( [`String attr`] ) : String
Returns the path for this node. The path can be used to expand or select this node programmatically.
Returns the path for this node. The path can be used to expand or select this node programmatically.
Parameters:

- `attr` : String
  (optional) The attr to use for the path (defaults to the node's id)

Returns:

- `String`
  The path

Node

getUI() : TreeNodeUI
Returns the UI object for this node.
Returns the UI object for this node.
Parameters:

- None.

Returns:

- `TreeNodeUI`
  The object which is providing the user interface for this tree node. Unless otherwise specified in the {@link #uiProvider}, this will be an instance of {@link Ext.tree.TreeNodeUI}

TreeNode

hasListener( `String eventName` ) : Boolean
Checks to see if this object has any listeners for a specified event
Checks to see if this object has any listeners for a specified event
Parameters:

- `eventName` : String
  The name of the event to check for

Returns:

- `Boolean`
  True if the event is being listened for, else false

Observable

indexOf( `Node node` ) : Number
Returns the index of a child node
Returns the index of a child node
Parameters:

- `node` : Node

Returns:

- `Number`
  The index of the node or -1 if it was not found

Node

insertBefore( `Node node`, `Node refNode` ) : Node
Inserts the first node before the second node in this nodes childNodes collection.
Inserts the first node before the second node in this nodes childNodes collection.
Parameters:

- `node` : Node
  The node to insert
- `refNode` : Node
  The node to insert before (if null the node is appended)

Returns:

- `Node`
  The inserted node

Node

isAncestor( `Node node` ) : Boolean
Returns true if the passed node is an ancestor (at any point) of this node.
Returns true if the passed node is an ancestor (at any point) of this node.
Parameters:

- `node` : Node

Returns:

- `Boolean`

Node

isExpanded() : Boolean
Returns true if this node is expanded
Returns true if this node is expanded
Parameters:

- None.

Returns:

- `Boolean`

TreeNode

isFirst() : Boolean
Returns true if this node is the first child of its parent
Returns true if this node is the first child of its parent
Parameters:

- None.

Returns:

- `Boolean`

Node

isLast() : Boolean
Returns true if this node is the last child of its parent
Returns true if this node is the last child of its parent
Parameters:

- None.

Returns:

- `Boolean`

Node

isLeaf() : Boolean
Returns true if this node is a leaf
Returns true if this node is a leaf
Parameters:

- None.

Returns:

- `Boolean`

Node

isLoaded() : Boolean
Returns true if this node has been loaded
Returns true if this node has been loaded
Parameters:

- None.

Returns:

- `Boolean`

AsyncTreeNode

isLoading() : Boolean
Returns true if this node is currently loading
Returns true if this node is currently loading
Parameters:

- None.

Returns:

- `Boolean`

AsyncTreeNode

isSelected() : Boolean
Returns true if this node is selected
Returns true if this node is selected
Parameters:

- None.

Returns:

- `Boolean`

TreeNode

item( `Number index` ) : Node
Returns the child node at the specified index.
Returns the child node at the specified index.
Parameters:

- `index` : Number

Returns:

- `Node`

Node

on( `String eventName`, `Function handler`, [`Object scope`], [`Object options`] ) : void
Appends an event handler to this element (shorthand for addListener)
Appends an event handler to this element (shorthand for addListener)
Parameters:

- `eventName` : String
  The type of event to listen for
- `handler` : Function
  The method the event invokes
- `scope` : Object
  (optional) The scope in which to execute the handler function. The handler function's "this" context.
- `options` : Object
  (optional)

Returns:

- `void`

Observable

purgeListeners() : void
Removes all listeners for this object
Removes all listeners for this object
Parameters:

- None.

Returns:

- `void`

Observable

reload( `Function callback` ) : void
Trigger a reload for this node
Trigger a reload for this node
Parameters:

- `callback` : Function

Returns:

- `void`

AsyncTreeNode

remove() : Node
Removes this node from it's parent
Removes this node from it's parent
Parameters:

- None.

Returns:

- `Node`
  this

Node

removeChild( `Node node` ) : Node
Removes a child node from this node.
Removes a child node from this node.
Parameters:

- `node` : Node
  The node to remove

Returns:

- `Node`
  The removed node

Node

removeListener( `String eventName`, `Function handler`, [`Object scope`] ) : void
Removes a listener
Removes a listener
Parameters:

- `eventName` : String
  The type of event to listen for
- `handler` : Function
  The handler to remove
- `scope` : Object
  (optional) The scope (this object) for the handler

Returns:

- `void`

Observable

replaceChild( `Node newChild`, `Node oldChild` ) : Node
Replaces one child node in this node with another.
Replaces one child node in this node with another.
Parameters:

- `newChild` : Node
  The replacement node
- `oldChild` : Node
  The node to replace

Returns:

- `Node`
  The replaced node

Node

resumeEvents() : void
Resume firing events. (see suspendEvents)
Resume firing events. (see suspendEvents)
Parameters:

- None.

Returns:

- `void`

Observable

select() : void
Triggers selection of this node
Triggers selection of this node
Parameters:

- None.

Returns:

- `void`

TreeNode

setText( `String text` ) : void
Sets the text for this node
Sets the text for this node
Parameters:

- `text` : String

Returns:

- `void`

TreeNode

sort( `Function fn`, [`Object scope`] ) : void
Sorts this nodes children using the supplied sort function
Sorts this nodes children using the supplied sort function
Parameters:

- `fn` : Function
- `scope` : Object
  (optional)

Returns:

- `void`

Node

suspendEvents() : void
Suspend the firing of all events. (see resumeEvents)
Suspend the firing of all events. (see resumeEvents)
Parameters:

- None.

Returns:

- `void`

Observable

toggle() : void
Toggles expanded/collapsed state of the node
Toggles expanded/collapsed state of the node
Parameters:

- None.

Returns:

- `void`

TreeNode

un( `String eventName`, `Function handler`, [`Object scope`] ) : void
Removes a listener (shorthand for removeListener)
Removes a listener (shorthand for removeListener)
Parameters:

- `eventName` : String
  The type of event to listen for
- `handler` : Function
  The handler to remove
- `scope` : Object
  (optional) The scope (this object) for the handler

Returns:

- `void`

Observable

unselect() : void
Triggers deselection of this node
Triggers deselection of this node
Parameters:

- None.

Returns:

- `void`

TreeNode

## Public Events

Event | Defined By
--- | ---

append : ( `Tree tree`, `Node this`, `Node node`, `Number index` )
Fires when a new child node is appended
Fires when a new child node is appended
Listeners will be called with the following arguments:

- `tree` : Tree
  The owner tree
- `this` : Node
  This node
- `node` : Node
  The newly appended node
- `index` : Number
  The index of the newly appended node

Node

beforeappend : ( `Tree tree`, `Node this`, `Node node` )
Fires before a new child is appended, return false to cancel the append.
Fires before a new child is appended, return false to cancel the append.
Listeners will be called with the following arguments:

- `tree` : Tree
  The owner tree
- `this` : Node
  This node
- `node` : Node
  The child node to be appended

Node

beforechildrenrendered : ( `Node this` )
Fires right before the child nodes for this node are rendered
Fires right before the child nodes for this node are rendered
Listeners will be called with the following arguments:

- `this` : Node
  This node

TreeNode

beforeclick : ( `Node this`, `Ext.EventObject e` )
Fires before click processing. Return false to cancel the default action.
Fires before click processing. Return false to cancel the default action.
Listeners will be called with the following arguments:

- `this` : Node
  This node
- `e` : Ext.EventObject
  The event object

TreeNode

beforecollapse : ( `Node this`, `Boolean deep`, `Boolean anim` )
Fires before this node is collapsed, return false to cancel.
Fires before this node is collapsed, return false to cancel.
Listeners will be called with the following arguments:

- `this` : Node
  This node
- `deep` : Boolean
- `anim` : Boolean

TreeNode

beforeexpand : ( `Node this`, `Boolean deep`, `Boolean anim` )
Fires before this node is expanded, return false to cancel.
Fires before this node is expanded, return false to cancel.
Listeners will be called with the following arguments:

- `this` : Node
  This node
- `deep` : Boolean
- `anim` : Boolean

TreeNode

beforeinsert : ( `Tree tree`, `Node this`, `Node node`, `Node refNode` )
Fires before a new child is inserted, return false to cancel the insert.
Fires before a new child is inserted, return false to cancel the insert.
Listeners will be called with the following arguments:

- `tree` : Tree
  The owner tree
- `this` : Node
  This node
- `node` : Node
  The child node to be inserted
- `refNode` : Node
  The child node the node is being inserted before

Node

beforeload : ( `Node this` )
Fires before this node is loaded, return false to cancel
Fires before this node is loaded, return false to cancel
Listeners will be called with the following arguments:

- `this` : Node
  This node

AsyncTreeNode

beforemove : ( `Tree tree`, `Node this`, `Node oldParent`, `Node newParent`, `Number index` )
Fires before this node is moved to a new location in the tree. Return false to cancel the move.
Fires before this node is moved to a new location in the tree. Return false to cancel the move.
Listeners will be called with the following arguments:

- `tree` : Tree
  The owner tree
- `this` : Node
  This node
- `oldParent` : Node
  The parent of this node
- `newParent` : Node
  The new parent this node is moving to
- `index` : Number
  The index it is being moved to

Node

beforeremove : ( `Tree tree`, `Node this`, `Node node` )
Fires before a child is removed, return false to cancel the remove.
Fires before a child is removed, return false to cancel the remove.
Listeners will be called with the following arguments:

- `tree` : Tree
  The owner tree
- `this` : Node
  This node
- `node` : Node
  The child node to be removed

Node

checkchange : ( `Node this`, `Boolean checked` )
Fires when a node with a checkbox's checked property changes
Fires when a node with a checkbox's checked property changes
Listeners will be called with the following arguments:

- `this` : Node
  This node
- `checked` : Boolean

TreeNode

click : ( `Node this`, `Ext.EventObject e` )
Fires when this node is clicked
Fires when this node is clicked
Listeners will be called with the following arguments:

- `this` : Node
  This node
- `e` : Ext.EventObject
  The event object

TreeNode

collapse : ( `Node this` )
Fires when this node is collapsed
Fires when this node is collapsed
Listeners will be called with the following arguments:

- `this` : Node
  This node

TreeNode

contextmenu : ( `Node this`, `Ext.EventObject e` )
Fires when this node is right clicked
Fires when this node is right clicked
Listeners will be called with the following arguments:

- `this` : Node
  This node
- `e` : Ext.EventObject
  The event object

TreeNode

dblclick : ( `Node this`, `Ext.EventObject e` )
Fires when this node is double clicked
Fires when this node is double clicked
Listeners will be called with the following arguments:

- `this` : Node
  This node
- `e` : Ext.EventObject
  The event object

TreeNode

disabledchange : ( `Node this`, `Boolean disabled` )
Fires when the disabled status of this node changes
Fires when the disabled status of this node changes
Listeners will be called with the following arguments:

- `this` : Node
  This node
- `disabled` : Boolean

TreeNode

expand : ( `Node this` )
Fires when this node is expanded
Fires when this node is expanded
Listeners will be called with the following arguments:

- `this` : Node
  This node

TreeNode

insert : ( `Tree tree`, `Node this`, `Node node`, `Node refNode` )
Fires when a new child node is inserted.
Fires when a new child node is inserted.
Listeners will be called with the following arguments:

- `tree` : Tree
  The owner tree
- `this` : Node
  This node
- `node` : Node
  The child node inserted
- `refNode` : Node
  The child node the node was inserted before

Node

load : ( `Node this` )
Fires when this node is loaded
Fires when this node is loaded
Listeners will be called with the following arguments:

- `this` : Node
  This node

AsyncTreeNode

move : ( `Tree tree`, `Node this`, `Node oldParent`, `Node newParent`, `Number index` )
Fires when this node is moved to a new location in the tree
Fires when this node is moved to a new location in the tree
Listeners will be called with the following arguments:

- `tree` : Tree
  The owner tree
- `this` : Node
  This node
- `oldParent` : Node
  The old parent of this node
- `newParent` : Node
  The new parent of this node
- `index` : Number
  The index it was moved to

Node

remove : ( `Tree tree`, `Node this`, `Node node` )
Fires when a child node is removed
Fires when a child node is removed
Listeners will be called with the following arguments:

- `tree` : Tree
  The owner tree
- `this` : Node
  This node
- `node` : Node
  The removed node

Node

textchange : ( `Node this`, `String text`, `String oldText` )
Fires when the text for this node is changed
Fires when the text for this node is changed
Listeners will be called with the following arguments:

- `this` : Node
  This node
- `text` : String
  The new text
- `oldText` : String
  The old text

TreeNode