/**
 * Copyright (c) 2005-2011 by Appcelerator, Inc. All Rights Reserved.
 * Licensed under the terms of the Eclipse Public License (EPL).
 * Please see the license.txt included with this distribution for details.
 * Any modifications to this file must keep this entire header intact.
 */
package org.python.pydev.debug.ui.actions;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.debug.core.model.IBreakpoint;
import org.eclipse.jface.dialogs.ErrorDialog;
import org.eclipse.jface.text.source.IVerticalRulerInfo;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.texteditor.ITextEditor;
import org.python.pydev.debug.core.PydevDebugPlugin;

/**
 * Action to enable/disable a breakpoint in the ruler.
 * 
 * @author Fabio
 */
public class EnableDisableBreakpointRulerAction extends AbstractBreakpointRulerAction {

    public EnableDisableBreakpointRulerAction(ITextEditor editor, IVerticalRulerInfo rulerInfo) {
        fInfo = rulerInfo;
        fTextEditor = editor;
    }

    public void update() {
        IBreakpoint breakpoint = getBreakpointFromLastLineOfActivityInCurrentEditor();
        setBreakpoint(breakpoint);
        if (breakpoint == null) {
            setEnabled(false);
        } else {
            setEnabled(true);
            try {
                boolean enabled = breakpoint.isEnabled();
                setText(enabled ? "&Disable Breakpoint" : "&Enable Breakpoint");
            } catch (CoreException ce) {
                PydevDebugPlugin.log(IStatus.ERROR, ce.getLocalizedMessage(), ce);
            }
        }
    }

    @Override
    public void run() {

        final IBreakpoint breakpoint = getBreakpoint();
        if (breakpoint != null) {
            new Job("Enabling / Disabling Breakpoint") { //$NON-NLS-1$
                protected IStatus run(IProgressMonitor monitor) {
                    try {
                        breakpoint.setEnabled(!breakpoint.isEnabled());
                        return Status.OK_STATUS;
                    } catch (final CoreException e) {
                        Display.getDefault().asyncExec(new Runnable() {
                            public void run() {
                                ErrorDialog.openError(getTextEditor().getEditorSite().getShell(),
                                        "Enabling/disabling breakpoints",
                                        "Exceptions occurred enabling disabling the breakpoint", e.getStatus());
                            }
                        });
                    }
                    return Status.CANCEL_STATUS;
                }
            }.schedule();
        }
    }
}