// Copyright (c) 20109 The Chromium Authors. All rights reserved.

// Use of this source code is governed by a BSD-style license that can be

// found in the LICENSE file.

package org.chromium.debug.ui.actions;

import org.chromium.debug.core.model.ChromiumLineBreakpoint;

import org.eclipse.debug.core.model.IBreakpoint;

import org.eclipse.jface.action.IAction;

import org.eclipse.jface.viewers.ISelection;

import org.eclipse.jface.viewers.ISelectionChangedListener;

import org.eclipse.jface.viewers.ISelectionProvider;

import org.eclipse.jface.viewers.IStructuredSelection;

import org.eclipse.jface.viewers.StructuredSelection;

import org.eclipse.jface.window.IShellProvider;

import org.eclipse.ui.IObjectActionDelegate;

import org.eclipse.ui.IWorkbenchPart;

import org.eclipse.ui.IWorkbenchPartSite;

import org.eclipse.ui.dialogs.PropertyDialogAction;

/**

 * Action to bring up the breakpoint properties dialog.

 */

public class JsBreakpointPropertiesAction implements IObjectActionDelegate {

  private Runnable currentRunnable;

  private IWorkbenchPartSite site = null;

  public void setActivePart(IAction action, IWorkbenchPart targetPart) {

    site = targetPart.getSite();

  }

  public void run(IAction action) {

    currentRunnable.run();

  }

  public void selectionChanged(IAction action, ISelection selection) {

    currentRunnable = createRunnable(selection);

    action.setEnabled(currentRunnable != null);

  }

  private Runnable createRunnable(ISelection selection) {

    if (selection instanceof IStructuredSelection == false) {

      return null;

    }

    IStructuredSelection structuredSelection = (IStructuredSelection) selection;

    if (structuredSelection.size() != 1) {

      return null;

    }

    Object element = structuredSelection.getFirstElement();

    if (element instanceof ChromiumLineBreakpoint == false) {

      return null;

    }

    final ChromiumLineBreakpoint breakpoint = (ChromiumLineBreakpoint) element;

    return new Runnable() {

      public void run() {

        runAction(breakpoint, site);

      }

    };

  }

  protected static void runAction(final IBreakpoint breakpoint, IShellProvider shell) {

    PropertyDialogAction action =

      new PropertyDialogAction(shell,

          new ISelectionProvider() {

            public void addSelectionChangedListener(ISelectionChangedListener listener) {

            }

            public ISelection getSelection() {

              return new StructuredSelection(breakpoint);

            }

            public void removeSelectionChangedListener(ISelectionChangedListener listener) {

            }

            public void setSelection(ISelection selection) {

            }

          });

    action.run();

  }

}