Mojo framework for AndroidOverlay.

media/mojo/clients/mojo_android_overlay.cc

+// Copyright 2017 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 "media/mojo/clients/mojo_android_overlay.h"
+
+#include "services/service_manager/public/cpp/connect.h"
+#include "services/service_manager/public/interfaces/interface_provider.mojom.h"
+
+namespace media {
+
+MojoAndroidOverlay::MojoAndroidOverlay(
+    service_manager::mojom::InterfaceProvider* interface_provider,
+    const AndroidOverlay::Config& config)
+    : interface_provider_(interface_provider), config_(config) {
+  // Connect to the provider service.
+  mojom::AndroidOverlayProviderPtr provider_ptr;
+  service_manager::GetInterface<mojom::AndroidOverlayProvider>(
+      interface_provider_, &provider_ptr_);
+
+  // Fill in details of |config| into |mojo_config|.  Our caller could do this
+  // too, but since we want to retain |config_| anyway, we do it here.
+  mojom::AndroidOverlayConfigPtr mojo_config =
+      mojom::AndroidOverlayConfig::New();
+  mojo_config->routing_token = config_.routing_token;
+  mojo_config->rect = config_.rect;
+
+  mojom::AndroidOverlayClientPtr ptr;
+  binding_ = base::MakeUnique<mojo::Binding<mojom::AndroidOverlayClient>>(
+      this, mojo::MakeRequest(&ptr));
+
+  provider_ptr_->CreateOverlay(mojo::MakeRequest(&overlay_ptr_), std::move(ptr),
+                               std::move(mojo_config));
+}
+
+MojoAndroidOverlay::~MojoAndroidOverlay() {
+  // Dropping |overlay_ptr_| will signal to the implementation that we're done
+  // with the surface.  If a synchronous destroy is pending, then it can be
+  // allowed to continue.
+}
+
+void MojoAndroidOverlay::ScheduleLayout(const gfx::Rect& rect) {
+  // If we haven't gotten the surface yet, then ignore this.
+  if (!received_surface_)
+    return;
+
+  overlay_ptr_->ScheduleLayout(rect);
+}
+
+const base::android::JavaRef<jobject>& MojoAndroidOverlay::GetJavaSurface()
+    const {
+  return surface_.j_surface();
+}
+
+void MojoAndroidOverlay::OnSurfaceReady(uint64_t surface_key) {
+  // TODO(liberato): ask binder for the surface here, and fill in |surface_|.
+  received_surface_ = true;
+  config_.ready_cb.Run();
+}
+
+void MojoAndroidOverlay::OnDestroyed() {
+  // Note that |overlay_ptr_| might not be bound yet, or we might not have ever
+  // gotten a surface.  Regardless, the overlay cannot be used.
+
+  if (!received_surface_)
+    config_.failed_cb.Run();
+  else
+    config_.destroyed_cb.Run();
+
+  // Note: we do not delete |overlay_ptr_| here.  Our client must delete us to
+  // signal that we should do that, since it still might be in use.
+}
+
+}  // namespace media