Loads CastEglPlatform implementation from shared library.

ui/ozone/platform/cast/ozone_platform_cast.cc

+// Copyright 2015 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/cast/ozone_platform_cast.h"
+
+#include "base/command_line.h"
+#include "chromecast/public/cast_egl_platform.h"
+#include "chromecast/public/cast_egl_platform_shlib.h"
+#include "ui/ozone/common/native_display_delegate_ozone.h"
+#include "ui/ozone/platform/cast/gpu_platform_support_cast.h"
+#include "ui/ozone/platform/cast/platform_window_cast.h"
+#include "ui/ozone/platform/cast/surface_factory_cast.h"
+#include "ui/ozone/public/cursor_factory_ozone.h"
+#include "ui/ozone/public/gpu_platform_support_host.h"
+#include "ui/ozone/public/input_controller.h"
+#include "ui/ozone/public/ozone_platform.h"
+#include "ui/ozone/public/system_input_injector.h"
+
+using chromecast::CastEglPlatform;
+
+namespace ui {
+namespace {
+
+// Ozone platform implementation for Cast.  Implements functionality
+// common to all Cast implementations:
+//  - Always one window with window size equal to display size
+//  - No input, cursor support
+//  - Relinquish GPU resources flow for switching to external applications
+// Meanwhile, platform-specific implementation details are abstracted out
+// to the CastEglPlatform interface.
+class OzonePlatformCast : public OzonePlatform {
+ public:
+  explicit OzonePlatformCast(scoped_ptr<CastEglPlatform> egl_platform)
+      : egl_platform_(egl_platform.Pass()) {}
+  ~OzonePlatformCast() override {}
+
+  // OzonePlatform implementation:
+  SurfaceFactoryOzone* GetSurfaceFactoryOzone() override {
+    return surface_factory_.get();
+  }
+  CursorFactoryOzone* GetCursorFactoryOzone() override {
+    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
+  }
+  scoped_ptr<PlatformWindow> CreatePlatformWindow(
+      PlatformWindowDelegate* delegate,
+      const gfx::Rect& bounds) override {
+    return make_scoped_ptr<PlatformWindow>(
+        new PlatformWindowCast(delegate, bounds));
+  }
+  scoped_ptr<NativeDisplayDelegate> CreateNativeDisplayDelegate() override {
+    return make_scoped_ptr(new NativeDisplayDelegateOzone());
+  }
+
+  void InitializeUI() override {
+    if (!surface_factory_) {
+      surface_factory_.reset(new SurfaceFactoryCast(egl_platform_.Pass()));
+    }
+    cursor_factory_.reset(new CursorFactoryOzone());
+    input_controller_ = CreateStubInputController();
+    gpu_platform_support_host_.reset(CreateStubGpuPlatformSupportHost());
+  }
+  void InitializeGPU() override {
+    if (!surface_factory_) {
+      surface_factory_.reset(new SurfaceFactoryCast(egl_platform_.Pass()));
+    }
+    gpu_platform_support_.reset(
+        new GpuPlatformSupportCast(surface_factory_.get()));
+  }
+
+ private:
+  scoped_ptr<CastEglPlatform> egl_platform_;
+  scoped_ptr<SurfaceFactoryCast> surface_factory_;
+  scoped_ptr<CursorFactoryOzone> cursor_factory_;
+  scoped_ptr<InputController> input_controller_;
+  scoped_ptr<GpuPlatformSupportCast> gpu_platform_support_;
+  scoped_ptr<GpuPlatformSupportHost> gpu_platform_support_host_;
+
+  DISALLOW_COPY_AND_ASSIGN(OzonePlatformCast);
+};
+
+}  // namespace
+
+OzonePlatform* CreateOzonePlatformCast() {
+  const std::vector<std::string>& argv =
+      base::CommandLine::ForCurrentProcess()->argv();
+  scoped_ptr<chromecast::CastEglPlatform> platform(
+      chromecast::CastEglPlatformShlib::Create(argv));
+  return new OzonePlatformCast(platform.Pass());
+}
+
+}  // namespace ui