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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 "ui/aura/env.h"
#include "ui/aura/cursor_manager.h"
#include "ui/aura/env_observer.h"
#include "ui/aura/event_filter.h"
#include "ui/aura/display_manager.h"
#include "ui/aura/root_window_host.h"
#include "ui/aura/window.h"
#include "ui/compositor/compositor.h"
#if defined(USE_X11)
#include "ui/aura/display_change_observer_x11.h"
#endif
namespace aura {
// static
Env* Env::instance_ = NULL;
////////////////////////////////////////////////////////////////////////////////
// Env, public:
Env::Env()
: mouse_button_flags_(0),
is_touch_down_(false),
stacking_client_(NULL) {
}
Env::~Env() {
ui::Compositor::Terminate();
}
// static
Env* Env::GetInstance() {
if (!instance_) {
instance_ = new Env;
instance_->Init();
}
return instance_;
}
// static
void Env::DeleteInstance() {
delete instance_;
instance_ = NULL;
}
void Env::AddObserver(EnvObserver* observer) {
observers_.AddObserver(observer);
}
void Env::RemoveObserver(EnvObserver* observer) {
observers_.RemoveObserver(observer);
}
void Env::SetDisplayManager(DisplayManager* display_manager) {
display_manager_.reset(display_manager);
#if defined(USE_X11)
// Update the display manager with latest info.
display_change_observer_->NotifyDisplayChange();
#endif
}
void Env::SetEventFilter(EventFilter* event_filter) {
event_filter_.reset(event_filter);
}
#if !defined(OS_MACOSX)
MessageLoop::Dispatcher* Env::GetDispatcher() {
return dispatcher_.get();
}
#endif
////////////////////////////////////////////////////////////////////////////////
// Env, private:
void Env::Init() {
#if !defined(OS_MACOSX)
dispatcher_.reset(CreateDispatcher());
#endif
#if defined(USE_X11)
display_change_observer_.reset(new internal::DisplayChangeObserverX11);
#endif
ui::Compositor::Initialize(false);
}
void Env::NotifyWindowInitialized(Window* window) {
FOR_EACH_OBSERVER(EnvObserver, observers_, OnWindowInitialized(window));
}
} // namespace aura
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