ozone/platform/wayland: Add support for wl_output_interface

ui/ozone/platform/wayland/fake_server.h

 // 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.
 
 #ifndef UI_OZONE_PLATFORM_WAYLAND_FAKE_SERVER_H_
 #define UI_OZONE_PLATFORM_WAYLAND_FAKE_SERVER_H_
 
 #include <wayland-server-core.h>
 
 #include "base/bind.h"
 #include "base/message_loop/message_pump_libevent.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/threading/thread.h"
 #include "testing/gmock/include/gmock/gmock.h"
+#include "ui/gfx/geometry/rect.h"
 
 struct wl_client;
 struct wl_display;
 struct wl_event_loop;
 struct wl_global;
 struct wl_resource;
 
 namespace wl {
 
+// Base class for managing the life cycle of server objects.
 class ServerObject {
  public:
   ServerObject(wl_resource* resource);
   virtual ~ServerObject();
 
   wl_resource* resource() { return resource_; }
 
   static void OnResourceDestroyed(wl_resource* resource);
 
  private:
   wl_resource* resource_;
 
   DISALLOW_COPY_AND_ASSIGN(ServerObject);
 };
 
+// Manage xdg_surface for providing desktop UI.
 class MockXdgSurface : public ServerObject {
  public:
   MockXdgSurface(wl_resource* resource);
   ~MockXdgSurface() override;
 
   MOCK_METHOD1(SetParent, void(wl_resource* parent));
   MOCK_METHOD1(SetTitle, void(const char* title));
   MOCK_METHOD1(SetAppId, void(const char* app_id));
   MOCK_METHOD1(AckConfigure, void(uint32_t serial));
   MOCK_METHOD0(SetMaximized, void());
   MOCK_METHOD0(UnsetMaximized, void());
   MOCK_METHOD0(SetMinimized, void());
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MockXdgSurface);
 };
 
+// Manage client surface
 class MockSurface : public ServerObject {
  public:
   MockSurface(wl_resource* resource);
   ~MockSurface() override;
 
   static MockSurface* FromResource(wl_resource* resource);
 
   MOCK_METHOD3(Attach, void(wl_resource* buffer, int32_t x, int32_t y));
   MOCK_METHOD4(Damage,
                void(int32_t x, int32_t y, int32_t width, int32_t height));
@@ skipping 11 matching lines @@
   ~MockPointer() override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MockPointer);
 };
 
 struct GlobalDeleter {
   void operator()(wl_global* global);
 };
 
+// Base class for managing the life cycle of global objects:
+// It presents a global object used to emit global events to all clients.
 class Global {
  public:
   Global(const wl_interface* interface,
          const void* implementation,
          uint32_t version);
   virtual ~Global();
 
+  // Create a global object.
   bool Initialize(wl_display* display);
+  // Called from Bind() to send additional information to clients.
+  virtual void OnBind() {}
 
   // The first bound resource to this global, which is usually all that is
   // useful when testing a simple client.
   wl_resource* resource() { return resource_; }
 
+  // Send the global event to clients.
   static void Bind(wl_client* client,
                    void* data,
                    uint32_t version,
                    uint32_t id);
   static void OnResourceDestroyed(wl_resource* resource);
 
  private:
   std::unique_ptr<wl_global, GlobalDeleter> global_;
 
   const wl_interface* interface_;
   const void* implementation_;
   const uint32_t version_;
   wl_resource* resource_ = nullptr;
 
   DISALLOW_COPY_AND_ASSIGN(Global);
 };
 
+// Manage wl_compositor object.
 class MockCompositor : public Global {
  public:
   MockCompositor();
   ~MockCompositor() override;
 
   void AddSurface(std::unique_ptr<MockSurface> surface);
 
  private:
   std::vector<std::unique_ptr<MockSurface>> surfaces_;
 
   DISALLOW_COPY_AND_ASSIGN(MockCompositor);
 };
 
+// Handle wl_output object.
+class MockOutput : public Global {
+ public:
+  MockOutput();
+  ~MockOutput() override;
+  void SetRect(const gfx::Rect rect) { rect_ = rect; }
+  const gfx::Rect GetRect() { return rect_; }
+  void OnBind() override;
+
+ private:
+  gfx::Rect rect_;
+
+  DISALLOW_COPY_AND_ASSIGN(MockOutput);
+};
+
+// Manage wl_seat object: group of input devices.
 class MockSeat : public Global {
  public:
   MockSeat();
   ~MockSeat() override;
 
   std::unique_ptr<MockPointer> pointer;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MockSeat);
 };
 
+// Manage xdg_shell object.
 class MockXdgShell : public Global {
  public:
   MockXdgShell();
   ~MockXdgShell() override;
 
   MOCK_METHOD1(UseUnstableVersion, void(int32_t version));
   MOCK_METHOD1(Pong, void(uint32_t serial));
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MockXdgShell);
@@ skipping 22 matching lines @@
   void Resume();
 
   template <typename T>
   T* GetObject(uint32_t id) {
     wl_resource* resource = wl_client_get_object(client_, id);
     return resource ? T::FromResource(resource) : nullptr;
   }
 
   MockSeat* seat() { return &seat_; }
   MockXdgShell* xdg_shell() { return &xdg_shell_; }
+  MockOutput* output() { return &output_; }
 
  private:
   void DoPause();
 
   std::unique_ptr<base::MessagePump> CreateMessagePump();
 
   // base::MessagePumpLibevent::Watcher
   void OnFileCanReadWithoutBlocking(int fd) override;
   void OnFileCanWriteWithoutBlocking(int fd) override;
 
   std::unique_ptr<wl_display, DisplayDeleter> display_;
   wl_client* client_ = nullptr;
   wl_event_loop* event_loop_ = nullptr;
 
   base::WaitableEvent pause_event_;
   base::WaitableEvent resume_event_;
 
+  // Represent Wayland global objects
   MockCompositor compositor_;
+  MockOutput output_;
   MockSeat seat_;
   MockXdgShell xdg_shell_;
 
   base::MessagePumpLibevent::FileDescriptorWatcher controller_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeServer);
 };
 
 }  // namespace wl
 
 #endif  // UI_OZONE_PLATFORM_WAYLAND_FAKE_SERVER_H_