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Eclipse Platform
Release 3.5

org.eclipse.debug.ui.actions
Class RulerBreakpointTypesActionDelegate

java.lang.Object
  extended by 
org.eclipse.debug.ui.actions.RulerBreakpointTypesActionDelegate
All Implemented Interfaces:
IMenuCreator, IMenuListener, IActionDelegate, IEditorActionDelegate

public class RulerBreakpointTypesActionDelegate
extends Object
implements IEditorActionDelegate, IMenuListener, IMenuCreator

Breakpoint ruler pop-up action that creates a sub-menu to select the currently active breakpoint type. This action delegate can be contributed to an editor with the editorActions extension point. The breakpoint types are calculated based on the toggle breakpoint target factories contributed through the toggleBreakpointsTargetFactories extension point.

Following is example plug-in XML used to contribute this action to an editor's vertical ruler context menu. It uses the popupMenus extension point, by referencing the ruler's context menu identifier in the targetID attribute.

 <extension point="org.eclipse.ui.popupMenus">
   <viewerContribution
     targetID="example.rulerContextMenuId"
     id="example.RulerPopupActions">
       <action
         label="Toggle Breakpoint"
         class="org.eclipse.debug.ui.actions.RulerBreakpointTypesActionDelegate"
         menubarPath="additions"
         id="example.rulerContextMenu.breakpointTypesAction">
       </action>
   </viewerContribution>
 

Clients may refer to this class as an action delegate in plug-in XML. This class is not intended to be subclassed.

Since:
3.5
See Also:
ToggleBreakpointsTargetManager, IToggleBreakpointsTargetFactory
Restriction:
This class is not intended to be subclassed by clients.

Constructor Summary
RulerBreakpointTypesActionDelegate ()
           
 
Method Summary
 void dispose ()
          Disposes the menu returned by getMenu.
  Menu getMenu ( Control parent)
          Returns the SWT menu, created as a pop up menu parented by the given control.
  Menu getMenu ( Menu parent)
          Returns an SWT menu created as a drop down menu parented by the given menu.
 void menuAboutToShow ( IMenuManager manager)
          Notifies this listener that the menu is about to be shown by the given menu manager.
 void run ( IAction action)
          Performs this action.
 void selectionChanged ( IAction action, ISelection selection)
          Notifies this action delegate that the selection in the workbench has changed.
 void setActiveEditor ( IAction callerAction, IEditorPart targetEditor)
          Sets the active editor for the delegate.
 
Methods inherited from class java.lang. Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

RulerBreakpointTypesActionDelegate

public RulerBreakpointTypesActionDelegate()
Method Detail

selectionChanged

public void selectionChanged(
IAction action,
                             
ISelection selection)
Description copied from interface: IActionDelegate
Notifies this action delegate that the selection in the workbench has changed.

Implementers can use this opportunity to change the availability of the action or to modify other presentation properties.

When the selection changes, the action enablement state is updated based on the criteria specified in the plugin.xml file. Then the delegate is notified of the selection change regardless of whether the enablement criteria in the plugin.xml file is met.

Specified by:
selectionChanged in interface IActionDelegate
Parameters:
action - the action proxy that handles presentation portion of the action
selection - the current selection, or null if there is no selection.

run

public void run(
IAction action)
Description copied from interface: IActionDelegate
Performs this action.

This method is called by the proxy action when the action has been triggered. Implement this method to do the actual work.

Note: If the action delegate also implements IActionDelegate2, then this method is not invoked but instead the runWithEvent(IAction, Event) method is called.

Specified by:
run in interface IActionDelegate
Parameters:
action - the action proxy that handles the presentation portion of the action

setActiveEditor

public void setActiveEditor(
IAction callerAction,
                            
IEditorPart targetEditor)
Description copied from interface: IEditorActionDelegate
Sets the active editor for the delegate. Implementors should disconnect from the old editor, connect to the new editor, and update the action to reflect the new editor.

Specified by:
setActiveEditor in interface IEditorActionDelegate
Parameters:
callerAction - the action proxy that handles presentation portion of the action
targetEditor - the new editor target

dispose

public void dispose()
Description copied from interface: IMenuCreator
Disposes the menu returned by getMenu. Does nothing if there is no menu. This method will be executed only when the parent of the menu is disposed.

Specified by:
dispose in interface IMenuCreator

menuAboutToShow

public void menuAboutToShow(
IMenuManager manager)
Description copied from interface: IMenuListener
Notifies this listener that the menu is about to be shown by the given menu manager.

Specified by:
menuAboutToShow in interface IMenuListener
Parameters:
manager - the menu manager

getMenu

public 
Menu getMenu(
Menu parent)
Description copied from interface: IMenuCreator
Returns an SWT menu created as a drop down menu parented by the given menu. In most cases, this menu can be created once, cached and reused when the pop-up/drop-down action occurs. If the menu must be dynamically created (i.e., each time it is popped up or dropped down), the old menu should be disposed of before replacing it with the new menu.

Specified by:
getMenu in interface IMenuCreator
Parameters:
parent - the parent menu
Returns:
the menu, or null if the menu could not be created

getMenu

public 
Menu getMenu(
Control parent)
Description copied from interface: IMenuCreator
Returns the SWT menu, created as a pop up menu parented by the given control. In most cases, this menu can be created once, cached and reused when the pop-up/drop-down action occurs. If the menu must be dynamically created (i.e., each time it is popped up or dropped down), the old menu should be disposed of before replacing it with the new menu.

Specified by:
getMenu in interface IMenuCreator
Parameters:
parent - the parent control
Returns:
the menu, or null if the menu could not be created

Eclipse Platform
Release 3.5

Guidelines for using Eclipse APIs.

Copyright (c) Eclipse contributors and others 2000, 2008. All rights reserved.


 
 
  Published under the terms of the Eclipse Public License Version 1.0 ("EPL") Design by Interspire