[Cast,Android] Handle some PresentationAPI edge cases

chrome/browser/media/android/router/media_router_android_bridge.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 "chrome/browser/media/android/router/media_router_android_bridge.h"
+
+#include "base/android/jni_android.h"
+#include "base/android/jni_string.h"
+#include "chrome/browser/media/android/router/media_router_android.h"
+#include "jni/ChromeMediaRouter_jni.h"
+
+using base::android::ConvertUTF8ToJavaString;
+using base::android::ConvertJavaStringToUTF8;
+using base::android::JavaRef;
+using base::android::ScopedJavaLocalRef;
+using base::android::AttachCurrentThread;
+
+namespace media_router {
+
+MediaRouterAndroidBridge::MediaRouterAndroidBridge(MediaRouterAndroid* router)
+    : native_media_router_(router) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  java_media_router_.Reset(
+      Java_ChromeMediaRouter_create(env, reinterpret_cast<jlong>(this)));
+}
+
+MediaRouterAndroidBridge::~MediaRouterAndroidBridge() = default;
+
+// static
+bool MediaRouterAndroidBridge::Register(JNIEnv* env) {
+  bool ret = RegisterNativesImpl(env);
+  DCHECK(g_ChromeMediaRouter_clazz);
+  return ret;
+}
+
+void MediaRouterAndroidBridge::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) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  ScopedJavaLocalRef<jstring> jsource_id =
+      base::android::ConvertUTF8ToJavaString(env, source_id);
+  ScopedJavaLocalRef<jstring> jsink_id =
+      base::android::ConvertUTF8ToJavaString(env, sink_id);
+  ScopedJavaLocalRef<jstring> jpresentation_id =
+      base::android::ConvertUTF8ToJavaString(env, presentation_id);
+  // TODO(crbug.com/685358): Unique origins should not be considered
+  // same-origin.
+  ScopedJavaLocalRef<jstring> jorigin =
+      base::android::ConvertUTF8ToJavaString(env, origin.GetURL().spec());
+
+  Java_ChromeMediaRouter_createRoute(env, java_media_router_, jsource_id,
+                                     jsink_id, jpresentation_id, jorigin,
+                                     tab_id, is_incognito, route_request_id);
+}
+
+void MediaRouterAndroidBridge::JoinRoute(const MediaSource::Id& source_id,
+                                         const std::string& presentation_id,
+                                         const url::Origin& origin,
+                                         int tab_id,
+                                         int route_request_id) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  ScopedJavaLocalRef<jstring> jsource_id =
+      base::android::ConvertUTF8ToJavaString(env, source_id);
+  ScopedJavaLocalRef<jstring> jpresentation_id =
+      base::android::ConvertUTF8ToJavaString(env, presentation_id);
+  ScopedJavaLocalRef<jstring> jorigin =
+      base::android::ConvertUTF8ToJavaString(env, origin.GetURL().spec());
+
+  Java_ChromeMediaRouter_joinRoute(env, java_media_router_, jsource_id,
+                                   jpresentation_id, jorigin, tab_id,
+                                   route_request_id);
+}
+
+void MediaRouterAndroidBridge::TerminateRoute(const MediaRoute::Id& route_id) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  ScopedJavaLocalRef<jstring> jroute_id =
+      base::android::ConvertUTF8ToJavaString(env, route_id);
+  Java_ChromeMediaRouter_closeRoute(env, java_media_router_, jroute_id);
+}
+
+void MediaRouterAndroidBridge::SendRouteMessage(const MediaRoute::Id& route_id,
+                                                const std::string& message,
+                                                int callback_id) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  ScopedJavaLocalRef<jstring> jroute_id =
+      base::android::ConvertUTF8ToJavaString(env, route_id);
+  ScopedJavaLocalRef<jstring> jmessage =
+      base::android::ConvertUTF8ToJavaString(env, message);
+  Java_ChromeMediaRouter_sendStringMessage(env, java_media_router_, jroute_id,
+                                           jmessage, callback_id);
+}
+
+void MediaRouterAndroidBridge::DetachRoute(const MediaRoute::Id& route_id) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  ScopedJavaLocalRef<jstring> jroute_id =
+      base::android::ConvertUTF8ToJavaString(env, route_id);
+  Java_ChromeMediaRouter_detachRoute(env, java_media_router_, jroute_id);
+}
+
+bool MediaRouterAndroidBridge::StartObservingMediaSinks(
+    const MediaSource::Id& source_id) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  ScopedJavaLocalRef<jstring> jsource_id =
+      base::android::ConvertUTF8ToJavaString(env, source_id);
+  return Java_ChromeMediaRouter_startObservingMediaSinks(
+      env, java_media_router_, jsource_id);
+}
+
+void MediaRouterAndroidBridge::StopObservingMediaSinks(
+    const MediaSource::Id& source_id) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  ScopedJavaLocalRef<jstring> jsource_id =
+      base::android::ConvertUTF8ToJavaString(env, source_id);
+  Java_ChromeMediaRouter_stopObservingMediaSinks(env, java_media_router_,
+                                                 jsource_id);
+}
+
+void MediaRouterAndroidBridge::OnSinksReceived(
+    JNIEnv* env,
+    const JavaRef<jobject>& obj,
+    const JavaRef<jstring>& jsource_urn,
+    jint jcount) {
+  std::vector<MediaSink> sinks_converted;
+  sinks_converted.reserve(jcount);
+  for (int i = 0; i < jcount; ++i) {
+    ScopedJavaLocalRef<jstring> jsink_urn = Java_ChromeMediaRouter_getSinkUrn(
+        env, java_media_router_, jsource_urn, i);
+    ScopedJavaLocalRef<jstring> jsink_name = Java_ChromeMediaRouter_getSinkName(
+        env, java_media_router_, jsource_urn, i);
+    sinks_converted.push_back(MediaSink(
+        ConvertJavaStringToUTF8(env, jsink_urn.obj()),
+        ConvertJavaStringToUTF8(env, jsink_name.obj()), MediaSink::GENERIC));
+  }
+  native_media_router_->OnSinksReceived(
+      ConvertJavaStringToUTF8(env, jsource_urn), sinks_converted);
+}
+
+void MediaRouterAndroidBridge::OnRouteCreated(
+    JNIEnv* env,
+    const JavaRef<jobject>& obj,
+    const JavaRef<jstring>& jmedia_route_id,
+    const JavaRef<jstring>& jsink_id,
+    jint jroute_request_id,
+    jboolean jis_local) {
+  native_media_router_->OnRouteCreated(
+      ConvertJavaStringToUTF8(env, jmedia_route_id),
+      ConvertJavaStringToUTF8(env, jsink_id), jroute_request_id, jis_local);
+}
+
+void MediaRouterAndroidBridge::OnRouteRequestError(
+    JNIEnv* env,
+    const JavaRef<jobject>& obj,
+    const JavaRef<jstring>& jerror_text,
+    jint jroute_request_id) {
+  native_media_router_->OnRouteRequestError(
+      ConvertJavaStringToUTF8(jerror_text), jroute_request_id);
+}
+
+void MediaRouterAndroidBridge::OnRouteClosed(
+    JNIEnv* env,
+    const JavaRef<jobject>& obj,
+    const JavaRef<jstring>& jmedia_route_id) {
+  native_media_router_->OnRouteClosed(
+      ConvertJavaStringToUTF8(env, jmedia_route_id));
+}
+
+void MediaRouterAndroidBridge::OnRouteClosedWithError(
+    JNIEnv* env,
+    const JavaRef<jobject>& obj,
+    const JavaRef<jstring>& jmedia_route_id,
+    const JavaRef<jstring>& jmessage) {
+  native_media_router_->OnRouteClosedWithError(
+      ConvertJavaStringToUTF8(env, jmedia_route_id),
+      ConvertJavaStringToUTF8(env, jmessage));
+}
+
+void MediaRouterAndroidBridge::OnMessageSentResult(JNIEnv* env,
+                                                   const JavaRef<jobject>& obj,
+                                                   jboolean jsuccess,
+                                                   jint jcallback_id) {
+  native_media_router_->OnMessageSentResult(jsuccess, jcallback_id);
+}
+
+void MediaRouterAndroidBridge::OnMessage(
+    JNIEnv* env,
+    const JavaRef<jobject>& obj,
+    const JavaRef<jstring>& jmedia_route_id,
+    const JavaRef<jstring>& jmessage) {
+  native_media_router_->OnMessage(ConvertJavaStringToUTF8(env, jmedia_route_id),
+                                  ConvertJavaStringToUTF8(env, jmessage));
+}
+
+}  // namespace media_router