DialogSurfaceManager implementation.

media/base/android/android_overlay_provider_proxy.cc

+// 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 "media/base/android/android_overlay_provider_proxy.h"
+
+#include "base/android/jni_android.h"
+#include "gpu/ipc/common/android/android_overlay_provider_lookup.h"
+#include "jni/AndroidOverlayProviderProxy_jni.h"
+#include "media/base/android/android_overlay_callback.h"
+
+using base::android::AttachCurrentThread;
+using base::android::ScopedJavaGlobalRef;
+using base::android::ScopedJavaLocalRef;
+
+namespace media {
+
+static base::LazyInstance<AndroidOverlayProviderProxy>::Leaky
+    g_surface_manager = LAZY_INSTANCE_INITIALIZER;
+
+AndroidOverlayProviderProxy* AndroidOverlayProviderProxy::Get() {
+  return g_surface_manager.Pointer();
+}
+
+AndroidOverlayProviderProxy::AndroidOverlayProviderProxy() {
+  JNIEnv* env = AttachCurrentThread();
+
+  // Get the surface manager from the browser.
+  // This can, in principle, be run in the gpu process if we send the window
+  // token from the browser.  See https://codereview.chromium.org/1967553002 .
+  // Either way, we end up with an IAndroidOverlayProviderProxy here, and we
+  // don't
+  // care whether it's local or remote.
+  ScopedJavaLocalRef<jobject> unwrapped_provider(
+      gpu::AndroidOverlayProviderLookup::GetInstance()
+          ->GetAndroidOverlayProvider());
+
+  // Wrap the manager for access from native code.
+  j_wrapped_provider_.Reset(
+      Java_AndroidOverlayProviderProxy_wrap(env, unwrapped_provider.obj()));
+}
+
+AndroidOverlayProviderProxy::~AndroidOverlayProviderProxy() {}
+
+std::unique_ptr<AndroidOverlayProxy> AndroidOverlayProviderProxy::CreateOverlay(
+    base::ProcessHandle pid,
+    int frame_id,
+    const Config& config,
+    const AndroidOverlayProxy::Callback& callback) {
+  JNIEnv* env = AttachCurrentThread();
+
+  std::unique_ptr<AndroidOverlayCallback> wrapped_callback(
+      new AndroidOverlayCallback(callback));
+
+  ScopedJavaGlobalRef<jobject> result(
+      Java_AndroidOverlayProviderProxy_createOverlay(
+          env, j_wrapped_provider_.obj(), pid, frame_id,
+          wrapped_callback->obj(), config.rect.x(), config.rect.y(),
+          config.rect.width(), config.rect.height()));
+
+  std::unique_ptr<AndroidOverlayProxy> surface;
+  if (!result.is_null()) {
+    surface.reset(new AndroidOverlayProxy(result, std::move(wrapped_callback)));
+  }
+
+  return surface;
+}
+
+}  // namespace media