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/*******************************************************************************
* Copyright (c) 2004, 2005 QNX Software Systems and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* QNX Software Systems - Initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.debug.internal.ui.actions;
import java.util.ArrayList;
import java.util.Iterator;
import org.eclipse.cdt.debug.core.ICGlobalVariableManager;
import org.eclipse.cdt.debug.core.model.ICGlobalVariable;
import org.eclipse.debug.core.DebugPlugin;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IViewActionDelegate;
import org.eclipse.ui.IViewPart;
import org.eclipse.ui.actions.ActionDelegate;
/**
* A delegate for the "Remove Globals" action.
*/
public class RemoveGlobalsActionDelegate extends ActionDelegate implements IViewActionDelegate {
private IAction fAction;
private ISelection fSelection;
/* (non-Javadoc)
* @see org.eclipse.ui.IViewActionDelegate#init(org.eclipse.ui.IViewPart)
*/
public void init( IViewPart view ) {
}
/* (non-Javadoc)
* @see org.eclipse.ui.IActionDelegate2#init(org.eclipse.jface.action.IAction)
*/
public void init( IAction action ) {
setAction( action );
update();
}
/* (non-Javadoc)
* @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction)
*/
public void run( IAction action ) {
ISelection selection = getSelection();
if ( !(selection instanceof IStructuredSelection) )
return;
IStructuredSelection ss = (IStructuredSelection)selection;
final Iterator it = ss.iterator();
ArrayList list = new ArrayList( ss.size() );
while( it.hasNext() ) {
Object obj = it.next();
if ( obj instanceof ICGlobalVariable )
list.add( obj );
}
if ( list.size() == 0 )
return;
final ICGlobalVariable[] globals = (ICGlobalVariable[])list.toArray( new ICGlobalVariable[list.size()] );
final ICGlobalVariableManager gvm = (ICGlobalVariableManager)globals[0].getDebugTarget().getAdapter( ICGlobalVariableManager.class );
if ( gvm == null )
return;
Runnable r = new Runnable() {
public void run() {
gvm.removeGlobals( globals );
}
};
DebugPlugin.getDefault().asyncExec( r );
}
/*
* (non-Javadoc)
*
* @see org.eclipse.ui.IActionDelegate#selectionChanged(org.eclipse.jface.action.IAction, org.eclipse.jface.viewers.ISelection)
*/
public void selectionChanged( IAction action, ISelection selection ) {
setSelection( selection );
update();
}
protected IAction getAction() {
return fAction;
}
protected ISelection getSelection() {
return fSelection;
}
private void setAction( IAction action ) {
fAction = action;
}
private void setSelection( ISelection selection ) {
fSelection = selection;
}
private void update() {
IAction action = getAction();
if ( action != null ) {
ISelection selection = getSelection();
boolean enabled = false;
if ( selection instanceof IStructuredSelection ) {
Iterator it = ((IStructuredSelection)selection).iterator();
while( it.hasNext() ) {
if ( it.next() instanceof ICGlobalVariable ) {
enabled = true;
break;
}
}
}
action.setEnabled( enabled );
}
}
}
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