/*******************************************************************************
 * Copyright (c) 2001, 2004 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
 *     Jens Lukowski/Innoopract - initial renaming/restructuring
 *     
 *******************************************************************************/
package org.eclipse.wst.sse.ui.internal.debug;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.debug.core.model.IBreakpoint;
import org.eclipse.jface.text.source.IVerticalRuler;
import org.eclipse.ui.texteditor.ITextEditor;
import org.eclipse.wst.sse.ui.internal.Logger;
import org.eclipse.wst.sse.ui.internal.SSEUIMessages;

/**
 * ManageBreakpointAction - Enables and Disables
 */
public class ManageBreakpointAction extends BreakpointRulerAction {

	protected IBreakpoint[] breakpoints = null;
	private boolean doEnable = true;

	/**
	 * @param editor
	 * @param rulerInfo
	 */
	public ManageBreakpointAction(ITextEditor editor, IVerticalRuler rulerInfo) {
		super(editor, rulerInfo);
		setEnabled(true);
	}

	/**
	 *  
	 */
	protected void disableBreakpoints(IBreakpoint[] breakpoints) {
		for (int i = 0; i < breakpoints.length; i++) {
			try {
				breakpoints[i].setEnabled(false);
			} catch (CoreException e) {
				Logger.logException(e);
			}
		}
	}

	protected void enableBreakpoints(IBreakpoint[] breakpoints) {
		for (int i = 0; i < breakpoints.length; i++) {
			try {
				breakpoints[i].setEnabled(true);
			} catch (CoreException e) {
				Logger.logException(e);
			}
		}
	}

	public void run() {
		if (doEnable)
			enableBreakpoints(breakpoints);
		else
			disableBreakpoints(breakpoints);
	}

	public void update() {
		// doEnable means "enable" instead of "disable"
		doEnable = true;
		breakpoints = getBreakpoints(getMarkers());
		for (int i = 0; doEnable && i < breakpoints.length; i++) {
			IBreakpoint breakpoint = breakpoints[i];
			try {
				if (breakpoint.isEnabled()) {
					doEnable = false;
				}
			} catch (CoreException e) {
				Logger.logException("breakpoint not responding to isEnabled: " + breakpoint, e); //$NON-NLS-1$
			}
		}
		setEnabled(breakpoints != null && breakpoints.length > 0);
		if (doEnable)
			setText(SSEUIMessages.ManageBreakpointAction_0); //$NON-NLS-1$
		else
			setText(SSEUIMessages.ManageBreakpointAction_1); //$NON-NLS-1$
	}

}