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// Copyright (c) 2012 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 "ash/accelerators/accelerator_dispatcher.h"
#if defined(USE_X11)
#include <X11/Xlib.h>
// Xlib defines RootWindow
#ifdef RootWindow
#undef RootWindow
#endif
#endif // defined(USE_X11)
#include "ash/accelerators/accelerator_controller.h"
#include "ash/shell.h"
#include "ui/aura/env.h"
#include "ui/aura/event.h"
#include "ui/aura/root_window.h"
#include "ui/base/accelerators/accelerator.h"
#include "ui/base/events.h"
namespace ash {
namespace {
const int kModifierMask = (ui::EF_SHIFT_DOWN |
ui::EF_CONTROL_DOWN |
ui::EF_ALT_DOWN);
#if defined(OS_WIN)
bool IsKeyEvent(const MSG& msg) {
return
msg.message == WM_KEYDOWN || msg.message == WM_SYSKEYDOWN ||
msg.message == WM_KEYUP || msg.message == WM_SYSKEYUP;
}
bool IsKeyRelease(const MSG& msg) {
return msg.message == WM_KEYUP || msg.message == WM_SYSKEYUP;
}
#elif defined(USE_X11)
bool IsKeyEvent(const XEvent* xev) {
return xev->type == KeyPress || xev->type == KeyRelease;
}
bool IsKeyRelease(const XEvent* xev) {
return xev->type == KeyRelease;
}
#endif
} // namespace
AcceleratorDispatcher::AcceleratorDispatcher(
MessageLoop::Dispatcher* nested_dispatcher, aura::Window* associated_window)
: nested_dispatcher_(nested_dispatcher),
associated_window_(associated_window) {
DCHECK(nested_dispatcher_);
associated_window_->AddObserver(this);
}
AcceleratorDispatcher::~AcceleratorDispatcher() {
if (associated_window_)
associated_window_->RemoveObserver(this);
}
void AcceleratorDispatcher::OnWindowDestroying(aura::Window* window) {
if (associated_window_ == window)
associated_window_ = NULL;
}
bool AcceleratorDispatcher::Dispatch(const base::NativeEvent& event) {
if (!associated_window_)
return false;
if (!ui::IsNoopEvent(event) && !associated_window_->CanReceiveEvents())
return aura::Env::GetInstance()->GetDispatcher()->Dispatch(event);
if (IsKeyEvent(event)) {
ash::AcceleratorController* accelerator_controller =
ash::Shell::GetInstance()->accelerator_controller();
if (accelerator_controller) {
ui::Accelerator accelerator(ui::KeyboardCodeFromNative(event),
ui::EventFlagsFromNative(event) & kModifierMask);
if (IsKeyRelease(event))
accelerator.set_type(ui::ET_KEY_RELEASED);
if (accelerator_controller->Process(accelerator))
return true;
}
}
return nested_dispatcher_->Dispatch(event);
}
} // namespace ash
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