chrome/browser/ui/cocoa/accelerators_cocoa.h

// Copyright (c) 2010 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.

#ifndef CHROME_BROWSER_UI_COCOA_ACCELERATORS_COCOA_H_
#define CHROME_BROWSER_UI_COCOA_ACCELERATORS_COCOA_H_
#pragma once

#include <map>

#include "ui/base/models/accelerator_cocoa.h"

template <typename T> struct DefaultSingletonTraits;

// This class maintains a map of command_ids to AcceleratorCocoa objects (see
// chrome/app/chrome_command_ids.h). Currently, this only lists the commands
// that are used in the Wrench menu.
//
// It is recommended that this class be used as a singleton so that the key map
// isn't created multiple places.
//
//   #import "base/singleton.h"
//   ...
//   AcceleratorsCocoa* keymap = AcceleratorsCocoa::GetInstance();
//   return keymap->GetAcceleratorForCommand(IDC_COPY);
//
class AcceleratorsCocoa {
 public:
  typedef std::map<int, ui::AcceleratorCocoa> AcceleratorCocoaMap;

  // Returns NULL if there is no accelerator for the command.
  const ui::AcceleratorCocoa* GetAcceleratorForCommand(int command_id);

  // Returns the singleton instance.
  static AcceleratorsCocoa* GetInstance();

 private:
  friend struct DefaultSingletonTraits<AcceleratorsCocoa>;

  AcceleratorsCocoa();
  ~AcceleratorsCocoa() {}

  AcceleratorCocoaMap accelerators_;

  DISALLOW_COPY_AND_ASSIGN(AcceleratorsCocoa);
};

#endif  // CHROME_BROWSER_UI_COCOA_ACCELERATORS_COCOA_H_