[Cast,Android] Handle some PresentationAPI edge cases

chrome/browser/media/android/router/media_router_android_bridge.h

+// 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.
+
+#ifndef CHROME_BROWSER_MEDIA_ANDROID_ROUTER_MEDIA_ROUTER_ANDROID_BRIDGE_H_
+#define CHROME_BROWSER_MEDIA_ANDROID_ROUTER_MEDIA_ROUTER_ANDROID_BRIDGE_H_
+
+#include <jni.h>
+
+#include "base/android/scoped_java_ref.h"
+#include "base/macros.h"
+#include "chrome/browser/media/router/media_route.h"
+#include "chrome/browser/media/router/media_sink.h"
+#include "chrome/browser/media/router/media_source.h"
+#include "url/origin.h"
+
+namespace media_router {
+
+class MediaRouterAndroid;
+
+// Wraps the JNI layer between MediaRouterAndroid and ChromeMediaRouter.
+class MediaRouterAndroidBridge {
+ public:
+  explicit MediaRouterAndroidBridge(MediaRouterAndroid* router);
+  ~MediaRouterAndroidBridge();
+
+  static bool Register(JNIEnv* env);
+
+  // Implement the corresponding calls for the MediaRouterAndroid class.
+  // Virtual so could be overridden by tests.
+  virtual void CreateRoute(const MediaSource::Id& source_id,
+                           const MediaSink::Id& sink_id,
+                           const std::string& presentation_id,
+                           const url::Origin& origin,
+                           int tab_id,
+                           bool is_incognito,
+                           int route_request_id);
+  virtual void JoinRoute(const MediaSource::Id& source_id,
+                         const std::string& presentation_id,
+                         const url::Origin& origin,
+                         int tab_id,
+                         int route_request_id);
+  virtual void TerminateRoute(const MediaRoute::Id& route_id);
+  virtual void SendRouteMessage(const MediaRoute::Id& route_id,
+                                const std::string& message,
+                                int callback_id);
+  virtual void DetachRoute(const MediaRoute::Id& route_id);
+  virtual bool StartObservingMediaSinks(const MediaSource::Id& source_id);
+  virtual void StopObservingMediaSinks(const MediaSource::Id& source_id);
+
+  // Methods called by the Java counterpart.
+  void OnSinksReceived(JNIEnv* env,
+                       const base::android::JavaRef<jobject>& obj,
+                       const base::android::JavaRef<jstring>& jsource_urn,
+                       jint jcount);
+  void OnRouteCreated(JNIEnv* env,
+                      const base::android::JavaRef<jobject>& obj,
+                      const base::android::JavaRef<jstring>& jmedia_route_id,
+                      const base::android::JavaRef<jstring>& jmedia_sink_id,
+                      jint jroute_request_id,
+                      jboolean jis_local);
+  void OnRouteRequestError(JNIEnv* env,
+                           const base::android::JavaRef<jobject>& obj,
+                           const base::android::JavaRef<jstring>& jerror_text,
+                           jint jroute_request_id);
+  void OnRouteClosed(JNIEnv* env,
+                     const base::android::JavaRef<jobject>& obj,
+                     const base::android::JavaRef<jstring>& jmedia_route_id);
+  void OnRouteClosedWithError(
+      JNIEnv* env,
+      const base::android::JavaRef<jobject>& obj,
+      const base::android::JavaRef<jstring>& jmedia_route_id,
+      const base::android::JavaRef<jstring>& jmessage);
+  void OnMessageSentResult(JNIEnv* env,
+                           const base::android::JavaRef<jobject>& obj,
+                           jboolean jsuccess,
+                           jint jcallback_id);
+  void OnMessage(JNIEnv* env,
+                 const base::android::JavaRef<jobject>& obj,
+                 const base::android::JavaRef<jstring>& jmedia_route_id,
+                 const base::android::JavaRef<jstring>& jmessage);
+
+ private:
+  MediaRouterAndroid* native_media_router_;
+  base::android::ScopedJavaGlobalRef<jobject> java_media_router_;
+
+  DISALLOW_COPY_AND_ASSIGN(MediaRouterAndroidBridge);
+};
+
+}  // namespace media_router
+
+#endif  // CHROME_BROWSER_MEDIA_ANDROID_ROUTER_MEDIA_ROUTER_ANDROID_BRIDGE_H_