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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.internal.ui.IInternalCDebugUIConstants;
import org.eclipse.cdt.debug.internal.ui.disassembly.editor.DisassemblyEditorInput;
import org.eclipse.cdt.debug.internal.ui.disassembly.editor.DisassemblyEditorPresentation;
import org.eclipse.cdt.debug.internal.ui.disassembly.viewer.DisassemblyDocumentProvider;
import org.eclipse.cdt.debug.ui.CDebugUIPlugin;
import org.eclipse.cdt.debug.ui.disassembly.IDocumentPresentation;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.IWorkbenchPartSite;
import org.eclipse.ui.commands.IElementUpdater;
import org.eclipse.ui.handlers.HandlerUtil;
import org.eclipse.ui.menus.UIElement;
import org.eclipse.ui.texteditor.IDocumentProvider;
import org.eclipse.ui.texteditor.ITextEditor;
public class DisassemblyDisplayModeHandler extends AbstractHandler implements IElementUpdater {
private static final String ID_PARAMETER_MODE = "org.eclipse.cdt.debug.command.disassemblyDisplayMode.parameterMode"; //$NON-NLS-1$
/* (non-Javadoc)
* @see org.eclipse.core.commands.AbstractHandler#execute(org.eclipse.core.commands.ExecutionEvent)
*/
public Object execute( ExecutionEvent event ) throws ExecutionException {
DisassemblyEditorPresentation presentation = getEditorPresentation( event );
if ( presentation != null ) {
String param = event.getParameter( ID_PARAMETER_MODE );
if ( IInternalCDebugUIConstants.DISASM_DISPLAY_MODE_INSTRUCTIONS.equals( param ) ) {
presentation.setShowIntstructions( !presentation.showIntstructions() );
}
else if ( IInternalCDebugUIConstants.DISASM_DISPLAY_MODE_SOURCE.equals( param ) ) {
presentation.setShowSource( !presentation.showSource() );
}
}
return null;
}
/* (non-Javadoc)
* @see org.eclipse.ui.commands.IElementUpdater#updateElement(org.eclipse.ui.menus.UIElement, java.util.Map)
*/
@SuppressWarnings("unchecked")
public void updateElement( UIElement element, Map parameters ) {
IWorkbenchPartSite site = (IWorkbenchPartSite)element.getServiceLocator().getService( IWorkbenchPartSite.class );
if ( site != null ) {
IWorkbenchPart part = site.getPart();
if ( part instanceof ITextEditor ) {
IEditorInput input = ((ITextEditor)part).getEditorInput();
if ( input instanceof DisassemblyEditorInput ) {
IDocumentProvider dp = ((ITextEditor)part).getDocumentProvider();
if ( dp instanceof DisassemblyDocumentProvider ) {
IDocumentPresentation p = ((DisassemblyDocumentProvider)dp).getDocumentPresentation( input );
if ( p instanceof DisassemblyEditorPresentation ) {
DisassemblyEditorPresentation presentation = (DisassemblyEditorPresentation)p;
String param = (String)parameters.get( ID_PARAMETER_MODE );
if ( IInternalCDebugUIConstants.DISASM_DISPLAY_MODE_INSTRUCTIONS.equals( param ) ) {
element.setChecked( presentation.showIntstructions() );
}
else if ( IInternalCDebugUIConstants.DISASM_DISPLAY_MODE_SOURCE.equals( param ) ) {
element.setChecked( presentation.showSource() );
}
}
}
}
}
}
}
private DisassemblyEditorPresentation getEditorPresentation( ExecutionEvent event ) throws ExecutionException {
ISelection s = HandlerUtil.getActiveMenuEditorInputChecked( event );
if ( s instanceof IStructuredSelection ) {
Object o = ((IStructuredSelection)s).getFirstElement();
if ( o instanceof DisassemblyEditorInput ) {
DisassemblyDocumentProvider dp = CDebugUIPlugin.getDefault().getDisassemblyEditorManager().getDocumentProvider();
if ( dp != null ) {
return (DisassemblyEditorPresentation)dp.getDocumentPresentation( o );
}
}
}
return null;
}
}
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