blob: 233dc5809f916965623089ba8b443500d850012f [file] [log] [blame]
// 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.
#include "ui/wm/core/accelerator_filter.h"
#include <utility>
#include "build/build_config.h"
#include "ui/base/accelerators/accelerator.h"
#include "ui/base/accelerators/accelerator_history.h"
#include "ui/events/event.h"
#include "ui/wm/core/accelerator_delegate.h"
namespace wm {
namespace {
// Returns true if |key_code| is a key usually handled directly by the shell.
bool IsSystemKey(ui::KeyboardCode key_code) {
#if defined(OS_CHROMEOS)
switch (key_code) {
case ui::VKEY_MEDIA_LAUNCH_APP2: // Fullscreen button.
case ui::VKEY_MEDIA_LAUNCH_APP1: // Overview button.
case ui::VKEY_BRIGHTNESS_DOWN:
case ui::VKEY_BRIGHTNESS_UP:
case ui::VKEY_KBD_BRIGHTNESS_DOWN:
case ui::VKEY_KBD_BRIGHTNESS_UP:
case ui::VKEY_VOLUME_MUTE:
case ui::VKEY_VOLUME_DOWN:
case ui::VKEY_VOLUME_UP:
return true;
default:
return false;
}
#endif // defined(OS_CHROMEOS)
return false;
}
} // namespace
////////////////////////////////////////////////////////////////////////////////
// AcceleratorFilter, public:
AcceleratorFilter::AcceleratorFilter(
std::unique_ptr<AcceleratorDelegate> delegate,
ui::AcceleratorHistory* accelerator_history)
: delegate_(std::move(delegate)),
accelerator_history_(accelerator_history) {
DCHECK(accelerator_history);
}
AcceleratorFilter::~AcceleratorFilter() {
}
////////////////////////////////////////////////////////////////////////////////
// AcceleratorFilter, EventFilter implementation:
void AcceleratorFilter::OnKeyEvent(ui::KeyEvent* event) {
const ui::EventType type = event->type();
DCHECK(event->target());
if ((type != ui::ET_KEY_PRESSED && type != ui::ET_KEY_RELEASED) ||
event->is_char() || !event->target()) {
return;
}
ui::Accelerator accelerator(*event);
accelerator_history_->StoreCurrentAccelerator(accelerator);
AcceleratorDelegate::KeyType key_type =
IsSystemKey(event->key_code()) ? AcceleratorDelegate::KEY_TYPE_SYSTEM
: AcceleratorDelegate::KEY_TYPE_OTHER;
if (delegate_->ProcessAccelerator(*event, accelerator, key_type))
event->StopPropagation();
}
} // namespace wm