Java Doc for PartEventAction.java in  » IDE-Eclipse » ui-workbench » org » eclipse » ui » actions » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » IDE Eclipse » ui workbench » org.eclipse.ui.actions 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


org.eclipse.ui.actions.PartEventAction

All known Subclasses:   org.eclipse.ui.actions.RetargetAction,  org.eclipse.ui.internal.PageEventAction,
PartEventAction
abstract public class PartEventAction extends Action implements IPartListener(Code)
The abstract superclass for actions that listen to part activation and open/close events. This implementation tracks the active part (see getActivePart) and provides a convenient place to monitor part lifecycle events that could affect the availability of the action.

Subclasses must implement the following IAction method:

  • run - to do the action's work

Subclasses may extend any of the IPartListener methods if the action availablity needs to be recalculated:

  • partActivated
  • partDeactivated
  • partOpened
  • partClosed
  • partBroughtToTop

Although this method implements the IPartListener interface, it does NOT register itself.




Constructor Summary
protected  PartEventAction(String text)
     Creates a new action with the given text.
protected  PartEventAction(String text, int style)
     Creates a new action with the given text and style.

Method Summary
public  IWorkbenchPartgetActivePart()
     Returns the currently active part in the workbench.
public  voidpartActivated(IWorkbenchPart part)
     The PartEventAction implementation of this IPartListener method records that the given part is active.
public  voidpartBroughtToTop(IWorkbenchPart part)
     The PartEventAction implementation of this IPartListener method does nothing.
public  voidpartClosed(IWorkbenchPart part)
     The PartEventAction implementation of this IPartListener method clears the active part if it just closed.
public  voidpartDeactivated(IWorkbenchPart part)
     The PartEventAction implementation of this IPartListener method records that there is no active part.
public  voidpartOpened(IWorkbenchPart part)
     The PartEventAction implementation of this IPartListener method does nothing.


Constructor Detail
PartEventAction
protected PartEventAction(String text)(Code)
Creates a new action with the given text.
Parameters:
  text - the action's text, or null if there is no text



PartEventAction
protected PartEventAction(String text, int style)(Code)
Creates a new action with the given text and style.
Parameters:
  text - the action's text, or null if there is no text
Parameters:
  style - one of AS_PUSH_BUTTON, AS_CHECK_BOX,AS_DROP_DOWN_MENU, AS_RADIO_BUTTON, andAS_UNSPECIFIED
since:
   3.0




Method Detail
getActivePart
public IWorkbenchPart getActivePart()(Code)
Returns the currently active part in the workbench. currently active part in the workbench, or null if none



partActivated
public void partActivated(IWorkbenchPart part)(Code)
The PartEventAction implementation of this IPartListener method records that the given part is active. Subclasses may extend this method if action availability has to be recalculated.



partBroughtToTop
public void partBroughtToTop(IWorkbenchPart part)(Code)
The PartEventAction implementation of this IPartListener method does nothing. Subclasses should extend this method if action availability has to be recalculated.



partClosed
public void partClosed(IWorkbenchPart part)(Code)
The PartEventAction implementation of this IPartListener method clears the active part if it just closed. Subclasses may extend this method if action availability has to be recalculated.



partDeactivated
public void partDeactivated(IWorkbenchPart part)(Code)
The PartEventAction implementation of this IPartListener method records that there is no active part. Subclasses may extend this method if action availability has to be recalculated.



partOpened
public void partOpened(IWorkbenchPart part)(Code)
The PartEventAction implementation of this IPartListener method does nothing. Subclasses should extend this method if action availability has to be recalculated.



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