1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "ui/aura/env.h"
7 #include "base/command_line.h"
8 #include "ui/aura/env_observer.h"
9 #include "ui/aura/input_state_lookup.h"
10 #include "ui/aura/root_window_host.h"
11 #include "ui/aura/window.h"
12 #include "ui/compositor/compositor.h"
13 #include "ui/compositor/compositor_switches.h"
16 #include "base/message_loop/message_pump_x11.h"
22 Env* Env::instance_ = NULL;
24 ////////////////////////////////////////////////////////////////////////////////
28 : mouse_button_flags_(0),
29 is_touch_down_(false),
30 input_state_lookup_(InputStateLookup::Create().Pass()) {
35 base::MessagePumpX11::Current()->RemoveObserver(
36 &device_list_updater_aurax11_);
39 FOR_EACH_OBSERVER(EnvObserver, observers_, OnWillDestroyEnv());
41 ui::Compositor::Terminate();
45 void Env::CreateInstance() {
53 Env* Env::GetInstance() {
54 DCHECK(instance_) << "Env::CreateInstance must be called before getting "
55 "the instance of Env.";
60 void Env::DeleteInstance() {
65 void Env::AddObserver(EnvObserver* observer) {
66 observers_.AddObserver(observer);
69 void Env::RemoveObserver(EnvObserver* observer) {
70 observers_.RemoveObserver(observer);
73 bool Env::IsMouseButtonDown() const {
74 return input_state_lookup_.get() ? input_state_lookup_->IsMouseButtonDown() :
75 mouse_button_flags_ != 0;
78 #if !defined(OS_MACOSX) && !defined(OS_ANDROID) && \
79 !defined(USE_GTK_MESSAGE_PUMP)
80 base::MessageLoop::Dispatcher* Env::GetDispatcher() {
82 return base::MessagePumpX11::Current();
84 return dispatcher_.get();
89 void Env::RootWindowActivated(RootWindow* root_window) {
90 FOR_EACH_OBSERVER(EnvObserver, observers_,
91 OnRootWindowActivated(root_window));
94 ////////////////////////////////////////////////////////////////////////////////
98 #if !defined(OS_MACOSX) && !defined(OS_ANDROID) && !defined(USE_X11) && \
100 dispatcher_.reset(CreateDispatcher());
103 // We can't do this with a root window listener because XI_HierarchyChanged
104 // messages don't have a target window.
105 base::MessagePumpX11::Current()->AddObserver(
106 &device_list_updater_aurax11_);
108 ui::Compositor::Initialize();
111 void Env::NotifyWindowInitialized(Window* window) {
112 FOR_EACH_OBSERVER(EnvObserver, observers_, OnWindowInitialized(window));
115 void Env::NotifyRootWindowInitialized(RootWindow* root_window) {
116 FOR_EACH_OBSERVER(EnvObserver,
118 OnRootWindowInitialized(root_window));
121 ////////////////////////////////////////////////////////////////////////////////
122 // Env, ui::EventTarget implementation:
124 bool Env::CanAcceptEvent(const ui::Event& event) {
128 ui::EventTarget* Env::GetParentTarget() {