mus: Introduce high-contrast mode in mus.

services/ui/service.cc

 // 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 "services/ui/service.h"
 
 #include <set>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/memory/ptr_util.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/platform_thread.h"
 #include "build/build_config.h"
 #include "mojo/public/c/system/main.h"
 #include "services/catalog/public/cpp/resource_loader.h"
 #include "services/shell/public/cpp/connection.h"
 #include "services/shell/public/cpp/connector.h"
 #include "services/tracing/public/cpp/tracing_impl.h"
 #include "services/ui/clipboard/clipboard_impl.h"
 #include "services/ui/common/switches.h"
 #include "services/ui/display/platform_screen.h"
 #include "services/ui/gles2/gpu_impl.h"
 #include "services/ui/gpu/gpu_service_impl.h"
 #include "services/ui/gpu/gpu_service_mus.h"
+#include "services/ui/ws/accessibility_manager.h"
 #include "services/ui/ws/display.h"
 #include "services/ui/ws/display_binding.h"
 #include "services/ui/ws/display_manager.h"
 #include "services/ui/ws/user_activity_monitor.h"
 #include "services/ui/ws/user_display_manager.h"
 #include "services/ui/ws/window_server.h"
 #include "services/ui/ws/window_server_test_impl.h"
 #include "services/ui/ws/window_tree.h"
 #include "services/ui/ws/window_tree_binding.h"
 #include "services/ui/ws/window_tree_factory.h"
@@ skipping 32 matching lines @@
 
 // TODO(sky): this is a pretty typical pattern, make it easier to do.
 struct Service::PendingRequest {
   shell::Connection* connection;
   std::unique_ptr<mojom::WindowTreeFactoryRequest> wtf_request;
   std::unique_ptr<mojom::DisplayManagerRequest> dm_request;
 };
 
 struct Service::UserState {
   std::unique_ptr<clipboard::ClipboardImpl> clipboard;
+  std::unique_ptr<ws::AccessibilityManager> accessibility;
   std::unique_ptr<ws::WindowTreeHostFactory> window_tree_host_factory;
 };
 
 Service::Service()
     : test_config_(false),
 // TODO(penghuang): Kludge: Use mojo command buffer when running on
 // Windows since chrome command buffer breaks unit tests
 #if defined(OS_WIN)
       use_chrome_gpu_command_buffer_(false),
 #else
@@ skipping 129 matching lines @@
       new ws::WindowServer(this, platform_display_init_params_.surfaces_state));
 
   // DeviceDataManager must be initialized before TouchController. On non-Linux
   // platforms there is no DeviceDataManager so don't create touch controller.
   if (ui::DeviceDataManager::HasInstance())
     touch_controller_.reset(
         new ws::TouchController(window_server_->display_manager()));
 }
 
 bool Service::OnConnect(Connection* connection) {
+  connection->AddInterface<mojom::AccessibilityManager>(this);
   connection->AddInterface<mojom::Clipboard>(this);
   connection->AddInterface<mojom::DisplayManager>(this);
   connection->AddInterface<mojom::UserAccessManager>(this);
   connection->AddInterface<mojom::UserActivityMonitor>(this);
   connection->AddInterface<WindowTreeHostFactory>(this);
   connection->AddInterface<mojom::WindowManagerWindowTreeFactory>(this);
   connection->AddInterface<mojom::WindowTreeFactory>(this);
   if (test_config_)
     connection->AddInterface<WindowServerTest>(this);
 
@@ skipping 37 matching lines @@
 }
 
 void Service::CreateDefaultDisplays() {
   // An asynchronous callback will create the Displays once the physical
   // displays are ready.
   platform_screen_->ConfigurePhysicalDisplay(base::Bind(
       &Service::OnCreatedPhysicalDisplay, weak_ptr_factory_.GetWeakPtr()));
 }
 
 void Service::Create(shell::Connection* connection,
+                     mojom::AccessibilityManagerRequest request) {
+  UserState* user_state = GetUserState(connection);
+  if (!user_state->accessibility) {
+    const ws::UserId& user_id = connection->GetRemoteIdentity().user_id();
+    user_state->accessibility.reset(
+        new ws::AccessibilityManager(window_server_.get(), user_id));
+  }
+  user_state->accessibility->Bind(std::move(request));
+}
+
+void Service::Create(shell::Connection* connection,
                      mojom::ClipboardRequest request) {
   UserState* user_state = GetUserState(connection);
   if (!user_state->clipboard)
     user_state->clipboard.reset(new clipboard::ClipboardImpl);
   user_state->clipboard->AddBinding(std::move(request));
 }
 
 void Service::Create(shell::Connection* connection,
                      mojom::DisplayManagerRequest request) {
   // DisplayManagerObservers generally expect there to be at least one display.
@@ skipping 86 matching lines @@
   // Display manages its own lifetime.
   ws::Display* host_impl =
       new ws::Display(window_server_.get(), platform_display_init_params_);
   host_impl->Init(nullptr);
 
   if (touch_controller_)
     touch_controller_->UpdateTouchTransforms();
 }
 
 }  // namespace ui