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/*******************************************************************************
* Copyright (c) 2008 ARM Limited 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:
* ARM Limited - Initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.debug.internal.ui.disassembly.commands;
import java.util.Map;
import org.eclipse.cdt.debug.core.CDebugCorePlugin;
import org.eclipse.cdt.debug.core.ICDebugConstants;
import org.eclipse.cdt.debug.core.model.ISteppingModeTarget;
import org.eclipse.cdt.debug.ui.CDebugUIPlugin;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.debug.ui.DebugUITools;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.commands.ICommandService;
import org.eclipse.ui.commands.IElementUpdater;
import org.eclipse.ui.handlers.HandlerUtil;
import org.eclipse.ui.menus.UIElement;
/**
* org.eclipse.cdt.debug.internal.ui.disassembly.commands.SetSteppingModeHandler:
* //TODO Add description.
*/
public class SetSteppingModeHandler extends AbstractHandler implements IElementUpdater {
private static final String ID_PARAMETER_MODE = "com.arm.eclipse.rvd.ui.command.steppingMode.parameterMode"; //$NON-NLS-1$
private String fCurrentValue = null;
public SetSteppingModeHandler() {
super();
fCurrentValue = CDebugCorePlugin.getDefault().getPluginPreferences().getString( ICDebugConstants.PREF_STEP_MODE );
}
/* (non-Javadoc)
* @see org.eclipse.core.commands.AbstractHandler#execute(org.eclipse.core.commands.ExecutionEvent)
*/
@Override
public Object execute( ExecutionEvent event ) throws ExecutionException {
String param = event.getParameter( ID_PARAMETER_MODE );
if ( param == null || param.equals( fCurrentValue ) )
return null;
fCurrentValue = param;
CDebugCorePlugin.getDefault().getPluginPreferences().setValue( ICDebugConstants.PREF_STEP_MODE, fCurrentValue );
IWorkbenchWindow window = HandlerUtil.getActiveWorkbenchWindowChecked( event );
ICommandService service = (ICommandService)window.getService( ICommandService.class );
service.refreshElements( event.getCommand().getId(), null );
return null;
}
/* (non-Javadoc)
* @see org.eclipse.ui.commands.IElementUpdater#updateElement(org.eclipse.ui.menus.UIElement, java.util.Map)
*/
@Override
@SuppressWarnings("unchecked")
public void updateElement( UIElement element, Map parameters ) {
String param = (String)parameters.get( ID_PARAMETER_MODE );
if ( param != null ) {
element.setChecked( ( fCurrentValue != null && fCurrentValue.equals( param ) ) );
}
}
/* (non-Javadoc)
* @see org.eclipse.core.commands.AbstractHandler#isEnabled()
*/
@Override
public boolean isEnabled() {
IWorkbenchWindow window = CDebugUIPlugin.getDefault().getWorkbench().getActiveWorkbenchWindow();
return ( window != null && getSteppingModeTarget( window ) != null );
}
/* (non-Javadoc)
* @see org.eclipse.core.commands.AbstractHandler#isHandled()
*/
@Override
public boolean isHandled() {
IWorkbenchWindow window = CDebugUIPlugin.getDefault().getWorkbench().getActiveWorkbenchWindow();
return ( window != null && getSteppingModeTarget( window ) != null );
}
private ISteppingModeTarget getSteppingModeTarget( IWorkbenchWindow window ) {
ISelection selection = DebugUITools.getDebugContextManager().getContextService( window ).getActiveContext();
if ( selection instanceof IStructuredSelection ) {
Object element = ((IStructuredSelection)selection).getFirstElement();
if ( element instanceof IAdaptable )
return (ISteppingModeTarget)((IAdaptable)element).getAdapter( ISteppingModeTarget.class );
}
return null;
}
}
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