com.google.gwt.widgetideas.client
Class ListeningFastTreeItem

java.lang.Object
  com.google.gwt.user.client.ui.UIObject
      com.google.gwt.widgetideas.client.FastTreeItem
          com.google.gwt.widgetideas.client.ListeningFastTreeItem

All Implemented Interfaces:

com.google.gwt.user.client.ui.HasHTML, com.google.gwt.user.client.ui.HasText, HasFastTreeItems

public abstract class ListeningFastTreeItem
extends FastTreeItem

Convenience class used to allow IDE users to quickly override the event methods on FastTreeItem.

Nested Class Summary

Nested classes/interfaces inherited from class com.google.gwt.user.client.ui.UIObject

com.google.gwt.user.client.ui.UIObject.DebugIdImpl, com.google.gwt.user.client.ui.UIObject.DebugIdImplEnabled

Field Summary

Fields inherited from class com.google.gwt.user.client.ui.UIObject

DEBUG_ID_PREFIX

Constructor Summary

ListeningFastTreeItem()
Creates an empty tree item.

ListeningFastTreeItem(java.lang.String html)
Constructs a tree item with the given HTML.

ListeningFastTreeItem(com.google.gwt.user.client.ui.Widget widget)
Constructs a tree item with the given Widget.

Method Summary

abstract void	beforeClose() Called before the tree item is closed.
abstract void	beforeOpen() Called before the tree item is opened.
protected abstract boolean	beforeSelectionLost() Called when tree item is being unselected.
protected abstract void	ensureChildren() Fired when a tree item receives a request to open for the first time.
protected abstract void	onSelected() Called when a tree item is selected.

Methods inherited from class com.google.gwt.widgetideas.client.FastTreeItem

addItem, addItem, addItem, afterClose, afterOpen, becomeInteriorNode, getChild, getChildCount, getChildIndex, getControlImageWidth, getFocusableWidget, getHTML, getParentItem, getText, getTree, getWidget, hasBeenOpened, isInteriorNode, isLeafNode, isOpen, isSelected, isShowing, remove, removeItem, removeItems, setHTML, setState, setState, setText, setWidget

Methods inherited from class com.google.gwt.user.client.ui.UIObject

addStyleDependentName, addStyleName, ensureDebugId, ensureDebugId, ensureDebugId, getAbsoluteLeft, getAbsoluteTop, getElement, getOffsetHeight, getOffsetWidth, getStyleElement, getStyleName, getStyleName, getStylePrimaryName, getStylePrimaryName, getTitle, isVisible, isVisible, onEnsureDebugId, removeStyleDependentName, removeStyleName, setElement, setElement, setHeight, setPixelSize, setSize, setStyleName, setStyleName, setStyleName, setStylePrimaryName, setStylePrimaryName, setTitle, setVisible, setVisible, setWidth, sinkEvents, toString, unsinkEvents

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ListeningFastTreeItem

public ListeningFastTreeItem()

Creates an empty tree item.

ListeningFastTreeItem

public ListeningFastTreeItem(java.lang.String html)

Constructs a tree item with the given HTML.

Parameters:

html - the item's HTML

ListeningFastTreeItem

public ListeningFastTreeItem(com.google.gwt.user.client.ui.Widget widget)

Constructs a tree item with the given Widget.

Parameters:

widget - the item's widget

Method Detail

beforeClose

public abstract void beforeClose()

Description copied from class: FastTreeItem

Called before the tree item is closed.

Overrides:

beforeClose in class FastTreeItem

beforeOpen

public abstract void beforeOpen()

Description copied from class: FastTreeItem

Called before the tree item is opened.

Overrides:

beforeOpen in class FastTreeItem

beforeSelectionLost

protected abstract boolean beforeSelectionLost()

Description copied from class: FastTreeItem

Called when tree item is being unselected. Returning false cancels the unselection.

Overrides:

beforeSelectionLost in class FastTreeItem

ensureChildren

protected abstract void ensureChildren()

Description copied from class: FastTreeItem

Fired when a tree item receives a request to open for the first time. Should be overridden in child clases.

Overrides:

ensureChildren in class FastTreeItem

onSelected

protected abstract void onSelected()

Description copied from class: FastTreeItem

Called when a tree item is selected.

Overrides:

onSelected in class FastTreeItem