Add initial SHM-only Wayland Ozone implementation

ui/ozone/platform/wayland/ozone_platform_wayland.cc

-// Copyright 2014 The Chromium Authors. All rights reserved.
+// Copyright 2016 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/ozone/platform/caca/ozone_platform_caca.h"
+#include "ui/ozone/platform/wayland/ozone_platform_wayland.h"
 
-#include "base/macros.h"
-#include "ui/events/ozone/layout/keyboard_layout_engine_manager.h"
-#include "ui/events/ozone/layout/no/no_keyboard_layout_engine.h"
 #include "ui/ozone/common/native_display_delegate_ozone.h"
 #include "ui/ozone/common/stub_overlay_manager.h"
-#include "ui/ozone/platform/caca/caca_event_source.h"
-#include "ui/ozone/platform/caca/caca_window.h"
-#include "ui/ozone/platform/caca/caca_window_manager.h"
+#include "ui/ozone/platform/wayland/wayland_display.h"
+#include "ui/ozone/platform/wayland/wayland_surface_factory.h"
+#include "ui/ozone/platform/wayland/wayland_window.h"
 #include "ui/ozone/public/cursor_factory_ozone.h"
 #include "ui/ozone/public/gpu_platform_support.h"
 #include "ui/ozone/public/gpu_platform_support_host.h"
 #include "ui/ozone/public/input_controller.h"
 #include "ui/ozone/public/ozone_platform.h"  // nogncheck
 #include "ui/ozone/public/system_input_injector.h"
 
 namespace ui {
 
 namespace {
 
-class OzonePlatformCaca : public OzonePlatform {
+class OzonePlatformWayland : public OzonePlatform {
  public:
-  OzonePlatformCaca() {}
-  ~OzonePlatformCaca() override {}
+  OzonePlatformWayland() {}
+  ~OzonePlatformWayland() override {}
 
-  // OzonePlatform:
-  ui::SurfaceFactoryOzone* GetSurfaceFactoryOzone() override {
-    return window_manager_.get();
+  // OzonePlatform
+  SurfaceFactoryOzone* GetSurfaceFactoryOzone() override {
+    return surface_factory_.get();
   }
+
   OverlayManagerOzone* GetOverlayManager() override {
     return overlay_manager_.get();
   }
+
   CursorFactoryOzone* GetCursorFactoryOzone() override {
-    return cursor_factory_ozone_.get();
+    return cursor_factory_.get();
   }
+
   InputController* GetInputController() override {
     return input_controller_.get();
   }
+
   GpuPlatformSupport* GetGpuPlatformSupport() override {
     return gpu_platform_support_.get();
   }
+
   GpuPlatformSupportHost* GetGpuPlatformSupportHost() override {
     return gpu_platform_support_host_.get();
   }
+
   scoped_ptr<SystemInputInjector> CreateSystemInputInjector() override {
-    return nullptr;  // no input injection support.
+    return nullptr;
   }
+
   scoped_ptr<PlatformWindow> CreatePlatformWindow(
       PlatformWindowDelegate* delegate,
       const gfx::Rect& bounds) override {
-    scoped_ptr<CacaWindow> caca_window(new CacaWindow(
-        delegate, window_manager_.get(), event_source_.get(), bounds));
-    if (!caca_window->Initialize())
+    auto window =
+        make_scoped_ptr(new WaylandWindow(delegate, display_.get(), bounds));
+    if (!window->Initialize())
       return nullptr;
-    return std::move(caca_window);
+    return std::move(window);
   }
+
   scoped_ptr<NativeDisplayDelegate> CreateNativeDisplayDelegate() override {
-    return make_scoped_ptr(new NativeDisplayDelegateOzone());
+    return make_scoped_ptr(new NativeDisplayDelegateOzone);
   }
+
   base::ScopedFD OpenClientNativePixmapDevice() const override {
+    NOTIMPLEMENTED();
     return base::ScopedFD();
   }
 
   void InitializeUI() override {
-    window_manager_.reset(new CacaWindowManager);
-    overlay_manager_.reset(new StubOverlayManager());
-    event_source_.reset(new CacaEventSource());
-    cursor_factory_ozone_.reset(new CursorFactoryOzone());
+    display_.reset(new WaylandDisplay);
+    if (!display_->Initialize())
+      LOG(FATAL) << "Failed to initialize Wayland platform";
+
+    cursor_factory_.reset(new CursorFactoryOzone);
+    overlay_manager_.reset(new StubOverlayManager);
+    input_controller_ = CreateStubInputController();
+    surface_factory_.reset(new WaylandSurfaceFactory(display_.get()));
     gpu_platform_support_host_.reset(CreateStubGpuPlatformSupportHost());
-    input_controller_ = CreateStubInputController();
-    KeyboardLayoutEngineManager::SetKeyboardLayoutEngine(
-        make_scoped_ptr(new NoKeyboardLayoutEngine()));
   }
 
   void InitializeGPU() override {
+    // Don't reinitialize the surface factory in case InitializeUI was called
+    // previously in the same process.
+    if (!surface_factory_)
+      surface_factory_.reset(new WaylandSurfaceFactory(nullptr));
     gpu_platform_support_.reset(CreateStubGpuPlatformSupport());
   }
 
  private:
-  scoped_ptr<CacaWindowManager> window_manager_;
-  scoped_ptr<CacaEventSource> event_source_;
-  scoped_ptr<CursorFactoryOzone> cursor_factory_ozone_;
+  scoped_ptr<WaylandDisplay> display_;
+  scoped_ptr<WaylandSurfaceFactory> surface_factory_;
+  scoped_ptr<CursorFactoryOzone> cursor_factory_;
+  scoped_ptr<StubOverlayManager> overlay_manager_;
+  scoped_ptr<InputController> input_controller_;
+  scoped_ptr<GpuPlatformSupportHost> gpu_platform_support_host_;
   scoped_ptr<GpuPlatformSupport> gpu_platform_support_;
-  scoped_ptr<GpuPlatformSupportHost> gpu_platform_support_host_;
-  scoped_ptr<InputController> input_controller_;
-  scoped_ptr<OverlayManagerOzone> overlay_manager_;
 
-  DISALLOW_COPY_AND_ASSIGN(OzonePlatformCaca);
+  DISALLOW_COPY_AND_ASSIGN(OzonePlatformWayland);
 };
 
 }  // namespace
 
-OzonePlatform* CreateOzonePlatformCaca() {
-  return new OzonePlatformCaca;
+OzonePlatform* CreateOzonePlatformWayland() {
+  return new OzonePlatformWayland;
 }
 
 }  // namespace ui