1 // Copyright (c) 2013 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 "ash/display/mirror_window_controller.h"
10 // Xlib.h defines RootWindow.
14 #include "ash/display/cursor_window_controller.h"
15 #include "ash/display/display_controller.h"
16 #include "ash/display/display_info.h"
17 #include "ash/display/display_manager.h"
18 #include "ash/display/root_window_transformers.h"
19 #include "ash/host/window_tree_host_factory.h"
20 #include "ash/root_window_settings.h"
21 #include "ash/shell.h"
22 #include "base/strings/stringprintf.h"
23 #include "ui/aura/client/capture_client.h"
24 #include "ui/aura/root_window_transformer.h"
25 #include "ui/aura/window_delegate.h"
26 #include "ui/aura/window_event_dispatcher.h"
27 #include "ui/base/layout.h"
28 #include "ui/compositor/reflector.h"
29 #include "ui/gfx/canvas.h"
30 #include "ui/gfx/native_widget_types.h"
33 #include "ui/gfx/x/x11_types.h"
41 // Mirror window shouldn't handle input events.
42 void DisableInput(XID window) {
43 long event_mask = ExposureMask | VisibilityChangeMask |
44 StructureNotifyMask | PropertyChangeMask;
45 XSelectInput(gfx::GetXDisplay(), window, event_mask);
49 class NoneCaptureClient : public aura::client::CaptureClient {
51 NoneCaptureClient() {}
52 virtual ~NoneCaptureClient() {}
55 // Does a capture on the |window|.
56 virtual void SetCapture(aura::Window* window) OVERRIDE {}
58 // Releases a capture from the |window|.
59 virtual void ReleaseCapture(aura::Window* window) OVERRIDE {}
61 // Returns the current capture window.
62 virtual aura::Window* GetCaptureWindow() OVERRIDE {
65 virtual aura::Window* GetGlobalCaptureWindow() OVERRIDE {
69 DISALLOW_COPY_AND_ASSIGN(NoneCaptureClient);
74 MirrorWindowController::MirrorWindowController() {}
76 MirrorWindowController::~MirrorWindowController() {
77 // Make sure the root window gets deleted before cursor_window_delegate.
81 void MirrorWindowController::UpdateWindow(const DisplayInfo& display_info) {
82 static int mirror_host_count = 0;
85 const gfx::Rect& bounds_in_native = display_info.bounds_in_native();
86 host_.reset(Shell::GetInstance()->window_tree_host_factory()->
87 CreateWindowTreeHost(bounds_in_native));
88 host_->window()->SetName(
89 base::StringPrintf("MirrorRootWindow-%d", mirror_host_count++));
90 host_->compositor()->SetBackgroundColor(SK_ColorBLACK);
91 // No need to remove the observer because the DisplayController outlives the
93 host_->AddObserver(Shell::GetInstance()->display_controller());
94 host_->AddObserver(this);
95 // TODO(oshima): TouchHUD is using idkey.
96 InitRootWindowSettings(host_->window())->display_id = display_info.id();
99 DisableInput(host_->GetAcceleratedWidget());
102 aura::client::SetCaptureClient(host_->window(), new NoneCaptureClient());
105 // TODO(oshima): Start mirroring.
106 aura::Window* mirror_window = new aura::Window(NULL);
107 mirror_window->Init(aura::WINDOW_LAYER_TEXTURED);
108 host_->window()->AddChild(mirror_window);
109 mirror_window->SetBounds(host_->window()->bounds());
110 mirror_window->Show();
111 reflector_ = ui::ContextFactory::GetInstance()->CreateReflector(
112 Shell::GetPrimaryRootWindow()->GetHost()->compositor(),
113 mirror_window->layer());
115 GetRootWindowSettings(host_->window())->display_id = display_info.id();
116 host_->SetBounds(display_info.bounds_in_native());
119 DisplayManager* display_manager = Shell::GetInstance()->display_manager();
120 const DisplayInfo& source_display_info = display_manager->GetDisplayInfo(
121 Shell::GetScreen()->GetPrimaryDisplay().id());
122 DCHECK(display_manager->IsMirrored());
123 scoped_ptr<aura::RootWindowTransformer> transformer(
124 internal::CreateRootWindowTransformerForMirroredDisplay(
127 host_->SetRootWindowTransformer(transformer.Pass());
130 void MirrorWindowController::UpdateWindow() {
132 DisplayManager* display_manager = Shell::GetInstance()->display_manager();
133 const DisplayInfo& mirror_display_info = display_manager->GetDisplayInfo(
134 display_manager->mirrored_display_id());
135 UpdateWindow(mirror_display_info);
139 void MirrorWindowController::Close() {
141 ui::ContextFactory::GetInstance()->RemoveReflector(reflector_);
143 NoneCaptureClient* capture_client = static_cast<NoneCaptureClient*>(
144 aura::client::GetCaptureClient(host_->window()));
145 aura::client::SetCaptureClient(host_->window(), NULL);
146 delete capture_client;
148 host_->RemoveObserver(Shell::GetInstance()->display_controller());
149 host_->RemoveObserver(this);
154 void MirrorWindowController::OnHostResized(const aura::WindowTreeHost* host) {
155 if (mirror_window_host_size_ == host->GetBounds().size())
157 mirror_window_host_size_ = host->GetBounds().size();
158 reflector_->OnMirroringCompositorResized();
159 host_->SetRootWindowTransformer(CreateRootWindowTransformer().Pass());
160 Shell::GetInstance()->display_controller()->cursor_window_controller()->
165 scoped_ptr<aura::RootWindowTransformer>
166 MirrorWindowController::CreateRootWindowTransformer() const {
167 DisplayManager* display_manager = Shell::GetInstance()->display_manager();
168 const DisplayInfo& mirror_display_info = display_manager->GetDisplayInfo(
169 display_manager->mirrored_display_id());
170 const DisplayInfo& source_display_info = display_manager->GetDisplayInfo(
171 Shell::GetScreen()->GetPrimaryDisplay().id());
172 DCHECK(display_manager->IsMirrored());
173 return scoped_ptr<aura::RootWindowTransformer>(
174 internal::CreateRootWindowTransformerForMirroredDisplay(
176 mirror_display_info));
179 } // namespace internal