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/*
*(c) Copyright QNX Software Systems Ltd. 2002.
* All Rights Reserved.
*
*/
package org.eclipse.cdt.debug.internal.ui.actions;
import org.eclipse.cdt.debug.ui.CDebugUIPlugin;
import org.eclipse.debug.core.model.IDebugTarget;
import org.eclipse.debug.ui.IDebugUIConstants;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionProvider;
import org.eclipse.ui.IEditorActionDelegate;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.INullSelectionListener;
import org.eclipse.ui.IPartListener;
import org.eclipse.ui.ISelectionListener;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.IWorkbenchWindowActionDelegate;
import org.eclipse.ui.actions.ActionDelegate;
/**
*
* Enter type comment.
*
* @since Sep 19, 2002
*/
public abstract class AbstractEditorActionDelegate extends ActionDelegate
implements IWorkbenchWindowActionDelegate,
IEditorActionDelegate,
IPartListener,
ISelectionListener,
INullSelectionListener
{
private IAction fAction;
private IWorkbenchWindow fWorkbenchWindow;
private IWorkbenchPart fTargetPart;
private IDebugTarget fDebugTarget = null;
/**
* Constructor for AbstractEditorActionDelegate.
*/
public AbstractEditorActionDelegate()
{
}
/* (non-Javadoc)
* @see org.eclipse.ui.IWorkbenchWindowActionDelegate#dispose()
*/
public void dispose()
{
IWorkbenchWindow win = getWorkbenchWindow();
if ( win != null )
{
win.getPartService().removePartListener( this );
win.getSelectionService().removeSelectionListener( IDebugUIConstants.ID_DEBUG_VIEW, this );
}
}
/* (non-Javadoc)
* @see org.eclipse.ui.IWorkbenchWindowActionDelegate#init(IWorkbenchWindow)
*/
public void init( IWorkbenchWindow window )
{
setWorkbenchWindow( window );
IWorkbenchPage page = window.getActivePage();
if ( page != null )
{
setTargetPart( page.getActivePart() );
}
window.getPartService().addPartListener( this );
window.getSelectionService().addSelectionListener( IDebugUIConstants.ID_DEBUG_VIEW, this );
initializeDebugTarget();
update();
}
/* (non-Javadoc)
* @see org.eclipse.ui.IEditorActionDelegate#setActiveEditor(IAction, IEditorPart)
*/
public void setActiveEditor( IAction action, IEditorPart targetEditor )
{
setAction( action );
if ( getWorkbenchWindow() == null )
{
IWorkbenchWindow window = CDebugUIPlugin.getActiveWorkbenchWindow();
setWorkbenchWindow( window );
if ( window != null )
{
window.getSelectionService().addSelectionListener( IDebugUIConstants.ID_DEBUG_VIEW, this );
}
}
setTargetPart( targetEditor );
initializeDebugTarget();
update();
}
/* (non-Javadoc)
* @see org.eclipse.ui.IPartListener#partActivated(IWorkbenchPart)
*/
public void partActivated( IWorkbenchPart part )
{
setTargetPart( part );
}
/* (non-Javadoc)
* @see org.eclipse.ui.IPartListener#partBroughtToTop(IWorkbenchPart)
*/
public void partBroughtToTop( IWorkbenchPart part )
{
}
/* (non-Javadoc)
* @see org.eclipse.ui.IPartListener#partClosed(IWorkbenchPart)
*/
public void partClosed( IWorkbenchPart part )
{
if ( part == getTargetPart() )
{
setTargetPart( null );
}
}
/* (non-Javadoc)
* @see org.eclipse.ui.IPartListener#partDeactivated(IWorkbenchPart)
*/
public void partDeactivated(IWorkbenchPart part)
{
}
/* (non-Javadoc)
* @see org.eclipse.ui.IPartListener#partOpened(IWorkbenchPart)
*/
public void partOpened( IWorkbenchPart part )
{
}
public abstract void selectionChanged( IWorkbenchPart part, ISelection selection );
/* (non-Javadoc)
* @see org.eclipse.ui.IActionDelegate#run(IAction)
*/
public abstract void run( IAction action );
/* (non-Javadoc)
* @see org.eclipse.ui.IActionDelegate#selectionChanged(IAction, ISelection)
*/
public void selectionChanged(IAction action, ISelection selection)
{
setAction( action );
update();
}
protected IWorkbenchPart getTargetPart()
{
return fTargetPart;
}
protected void setTargetPart( IWorkbenchPart part )
{
fTargetPart = part;
}
protected ISelection getTargetSelection()
{
IWorkbenchPart part = getTargetPart();
if ( part != null )
{
ISelectionProvider provider = part.getSite().getSelectionProvider();
if ( provider != null )
{
return provider.getSelection();
}
}
return null;
}
protected void setDebugTarget( IDebugTarget target )
{
fDebugTarget = target;
}
protected IDebugTarget getDebugTarget()
{
return fDebugTarget;
}
protected IAction getAction()
{
return fAction;
}
protected void setAction( IAction action )
{
fAction = action;
}
protected IWorkbenchWindow getWorkbenchWindow()
{
return fWorkbenchWindow;
}
protected void setWorkbenchWindow( IWorkbenchWindow workbenchWindow )
{
fWorkbenchWindow = workbenchWindow;
}
protected void update()
{
IAction action = getAction();
if ( action != null )
{
action.setEnabled( getDebugTarget() != null && getTargetPart() != null );
}
}
protected abstract void initializeDebugTarget();
}
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