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// Copyright 2014 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 UI_WM_CORE_NESTED_ACCELERATOR_DISPATCHER_H_
#define UI_WM_CORE_NESTED_ACCELERATOR_DISPATCHER_H_
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "ui/wm/wm_export.h"
namespace base {
class MessagePumpDispatcher;
class RunLoop;
}
namespace ui {
class KeyEvent;
}
namespace wm {
class NestedAcceleratorDelegate;
// Dispatcher for handling accelerators from menu.
//
// Wraps a nested dispatcher to which control is passed if no accelerator key
// has been pressed. If the nested dispatcher is NULL, then the control is
// passed back to the default dispatcher.
// TODO(pkotwicz): Add support for a |nested_dispatcher| which sends
// events to a system IME.
class WM_EXPORT NestedAcceleratorDispatcher {
public:
virtual ~NestedAcceleratorDispatcher();
static scoped_ptr<NestedAcceleratorDispatcher> Create(
NestedAcceleratorDelegate* dispatcher_delegate,
base::MessagePumpDispatcher* nested_dispatcher);
// Creates a base::RunLoop object to run a nested message loop.
virtual scoped_ptr<base::RunLoop> CreateRunLoop() = 0;
protected:
explicit NestedAcceleratorDispatcher(NestedAcceleratorDelegate* delegate);
NestedAcceleratorDelegate*
delegate_; // Owned by NestedAcceleratorController.
private:
DISALLOW_COPY_AND_ASSIGN(NestedAcceleratorDispatcher);
};
} // namespace wm
#endif // UI_WM_CORE_NESTED_ACCELERATOR_DISPATCHER_H_
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