/*******************************************************************************
 * Copyright (c) 2005, 2012 IBM Corporation 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.cdt.debug.internal.ui.actions.breakpoints;

import org.eclipse.cdt.debug.internal.ui.actions.ActionMessages;
import org.eclipse.debug.ui.actions.ToggleBreakpointAction;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.text.source.IVerticalRulerInfo;
import org.eclipse.swt.widgets.Event;
import org.eclipse.ui.IActionDelegate2;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.texteditor.AbstractRulerActionDelegate;
import org.eclipse.ui.texteditor.ITextEditor;

/**
 * This is a copy of the RulerToggleBreakpointActionDelegate in platform.  
 * It updates the toggle action to include an accelertor text in its label.
 * See bug 374153.
 * 
 * @see org.eclipse.debug.ui.actions.RulerToggleBreakpointActionDelegate
 */
public class CRulerToggleBreakpointActionDelegate extends AbstractRulerActionDelegate implements IActionDelegate2 {
	
	private IEditorPart fEditor = null;
	private ToggleBreakpointAction fDelegate = null;

	/* (non-Javadoc)
	 * @see org.eclipse.ui.texteditor.AbstractRulerActionDelegate#createAction(org.eclipse.ui.texteditor.ITextEditor, org.eclipse.jface.text.source.IVerticalRulerInfo)
	 */
	protected IAction createAction(ITextEditor editor, IVerticalRulerInfo rulerInfo) {
		fDelegate = new ToggleBreakpointAction(editor, null, rulerInfo);
		fDelegate.setText( ActionMessages.getString("CRulerToggleBreakpointActionDelegate_label") ); //$NON-NLS-1$
		
		return fDelegate;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.ui.IEditorActionDelegate#setActiveEditor(org.eclipse.jface.action.IAction, org.eclipse.ui.IEditorPart)
	 */
	public void setActiveEditor(IAction callerAction, IEditorPart targetEditor) {
		if (fEditor != null) {
			if (fDelegate != null) {
				fDelegate.dispose();
				fDelegate = null;
			}
		}
		fEditor = targetEditor;
		super.setActiveEditor(callerAction, targetEditor);
	}

	/* (non-Javadoc)
	 * @see org.eclipse.ui.IActionDelegate2#init(org.eclipse.jface.action.IAction)
	 */
	public void init(IAction action) {
	}

	/* (non-Javadoc)
	 * @see org.eclipse.ui.IActionDelegate2#dispose()
	 */
	public void dispose() {
		if (fDelegate != null) {
			fDelegate.dispose();
		}
		fDelegate = null;
		fEditor = null;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.ui.IActionDelegate2#runWithEvent(org.eclipse.jface.action.IAction, org.eclipse.swt.widgets.Event)
	 */
	public void runWithEvent(IAction action, Event event) {
		if(fDelegate != null) {
			fDelegate.runWithEvent(event);
		}
	}
}