Mus+Ash: Replace (Server)WindowSurface with (Server)WindowCompositorFrameSink

services/ui/ws/server_window_compositor_frame_sink_manager.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 "services/ui/ws/server_window_compositor_frame_sink_manager.h"
+
+#include "services/ui/surfaces/display_compositor.h"
+#include "services/ui/ws/ids.h"
+#include "services/ui/ws/server_window.h"
+#include "services/ui/ws/server_window_compositor_frame_sink.h"
+#include "services/ui/ws/server_window_delegate.h"
+
+namespace ui {
+namespace ws {
+
+ServerWindowCompositorFrameSinkManager::ServerWindowCompositorFrameSinkManager(
+    ServerWindow* window)
+    : window_(window),
+      waiting_for_initial_frames_(
+          window_->properties().count(ui::mojom::kWaitForUnderlay_Property) >
+          0) {}
+
+ServerWindowCompositorFrameSinkManager::
+    ~ServerWindowCompositorFrameSinkManager() {
+  // Explicitly clear the type to surface manager so that this manager
+  // is still valid prior during ~ServerWindowCompositorFrameSink.
+  type_to_compositor_frame_sink_map_.clear();
+}
+
+bool ServerWindowCompositorFrameSinkManager::ShouldDraw() {
+  if (!waiting_for_initial_frames_)
+    return true;
+
+  waiting_for_initial_frames_ = !IsCompositorFrameSinkReadyAndNonEmpty(
+                                    mojom::CompositorFrameSinkType::DEFAULT) ||
+                                !IsCompositorFrameSinkReadyAndNonEmpty(
+                                    mojom::CompositorFrameSinkType::UNDERLAY);
+  return !waiting_for_initial_frames_;
+}
+
+void ServerWindowCompositorFrameSinkManager::CreateCompositorFrameSink(
+    mojom::CompositorFrameSinkType compositor_frame_sink_type,
+    mojo::InterfaceRequest<cc::mojom::MojoCompositorFrameSink> request,
+    cc::mojom::MojoCompositorFrameSinkClientPtr client) {
+  cc::FrameSinkId frame_sink_id(
+      WindowIdToTransportId(window_->id()),
+      static_cast<uint32_t>(compositor_frame_sink_type));
+  std::unique_ptr<ServerWindowCompositorFrameSink> compositor_frame_sink(
+      new ServerWindowCompositorFrameSink(
+          this, frame_sink_id, std::move(request), std::move(client)));
+  type_to_compositor_frame_sink_map_[compositor_frame_sink_type] =
+      std::move(compositor_frame_sink);
+}
+
+ServerWindowCompositorFrameSink*
+ServerWindowCompositorFrameSinkManager::GetDefaultCompositorFrameSink() const {
+  return GetCompositorFrameSinkByType(mojom::CompositorFrameSinkType::DEFAULT);
+}
+
+ServerWindowCompositorFrameSink*
+ServerWindowCompositorFrameSinkManager::GetUnderlayCompositorFrameSink() const {
+  return GetCompositorFrameSinkByType(mojom::CompositorFrameSinkType::UNDERLAY);
+}
+
+ServerWindowCompositorFrameSink*
+ServerWindowCompositorFrameSinkManager::GetCompositorFrameSinkByType(
+    mojom::CompositorFrameSinkType type) const {
+  auto iter = type_to_compositor_frame_sink_map_.find(type);
+  return iter == type_to_compositor_frame_sink_map_.end() ? nullptr
+                                                          : iter->second.get();
+}
+
+bool ServerWindowCompositorFrameSinkManager::HasCompositorFrameSinkOfType(
+    mojom::CompositorFrameSinkType type) const {
+  return type_to_compositor_frame_sink_map_.count(type) > 0;
+}
+
+bool ServerWindowCompositorFrameSinkManager::HasAnyCompositorFrameSink() const {
+  return GetDefaultCompositorFrameSink() || GetUnderlayCompositorFrameSink();
+}
+
+cc::SurfaceManager*
+ServerWindowCompositorFrameSinkManager::GetCompositorFrameSinkManager() {
+  return window()->delegate()->GetDisplayCompositor()->manager();
+}
+
+bool ServerWindowCompositorFrameSinkManager::
+    IsCompositorFrameSinkReadyAndNonEmpty(
+        mojom::CompositorFrameSinkType type) const {
+  auto iter = type_to_compositor_frame_sink_map_.find(type);
+  if (iter == type_to_compositor_frame_sink_map_.end())
+    return false;
+  if (iter->second->last_submitted_frame_size().IsEmpty())
+    return false;
+  const gfx::Size& last_submitted_frame_size =
+      iter->second->last_submitted_frame_size();
+  return last_submitted_frame_size.width() >= window_->bounds().width() &&
+         last_submitted_frame_size.height() >= window_->bounds().height();
+}
+
+}  // namespace ws
+}  // namespace ui