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// 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.
// This class describe a keyboard accelerator (or keyboard shortcut).
// Keyboard accelerators are registered with the FocusManager.
// It has a copy constructor and assignment operator so that it can be copied.
// It also defines the < operator so that it can be used as a key in a std::map.
//
#ifndef VIEWS_ACCELERATOR_H_
#define VIEWS_ACCELERATOR_H_
#include <string>
#include "app/menus/accelerator.h"
#include "views/event.h"
namespace views {
class Accelerator : public menus::Accelerator {
public:
Accelerator() : menus::Accelerator() {}
Accelerator(base::KeyboardCode keycode, int modifiers)
: menus::Accelerator(keycode, modifiers) {}
Accelerator(base::KeyboardCode keycode,
bool shift_pressed, bool ctrl_pressed, bool alt_pressed) {
key_code_ = keycode;
modifiers_ = 0;
if (shift_pressed)
modifiers_ |= Event::EF_SHIFT_DOWN;
if (ctrl_pressed)
modifiers_ |= Event::EF_CONTROL_DOWN;
if (alt_pressed)
modifiers_ |= Event::EF_ALT_DOWN;
}
virtual ~Accelerator() {}
bool IsShiftDown() const {
return (modifiers_ & Event::EF_SHIFT_DOWN) == Event::EF_SHIFT_DOWN;
}
bool IsCtrlDown() const {
return (modifiers_ & Event::EF_CONTROL_DOWN) == Event::EF_CONTROL_DOWN;
}
bool IsAltDown() const {
return (modifiers_ & Event::EF_ALT_DOWN) == Event::EF_ALT_DOWN;
}
// Returns a string with the localized shortcut if any.
std::wstring GetShortcutText() const;
};
// An interface that classes that want to register for keyboard accelerators
// should implement.
class AcceleratorTarget {
public:
// This method should return true if the accelerator was processed.
virtual bool AcceleratorPressed(const Accelerator& accelerator) = 0;
protected:
virtual ~AcceleratorTarget() {}
};
}
#endif // VIEWS_ACCELERATOR_H_
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