android_webview/native/aw_message_port_service_impl.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef ANDROID_WEBVIEW_NATIVE_AW_MESSAGE_PORT_SERVICE_IMPL_H_
   6 #define ANDROID_WEBVIEW_NATIVE_AW_MESSAGE_PORT_SERVICE_IMPL_H_
   7
   8 #include <jni.h>
   9 #include <map>
  10
  11 #include "android_webview/browser/aw_message_port_service.h"
  12 #include "base/android/jni_weak_ref.h"
  13 #include "base/basictypes.h"
  14 #include "base/memory/ref_counted.h"
  15 #include "base/strings/string16.h"
  16
  17 namespace android_webview {
  18
  19 // This class is the native peer of AwMessagePortService.java. Please see the
  20 // java class for an explanation of use, ownership and lifetime.
  21
  22 // Threading: Created and initialized on UI thread. For other methods, see
  23 // the method level DCHECKS or documentation.
  24 class AwMessagePortServiceImpl : public AwMessagePortService {
  25  public:
  26   static AwMessagePortServiceImpl* GetInstance();
  27
  28   AwMessagePortServiceImpl();
  29   ~AwMessagePortServiceImpl() override;
  30   void Init(JNIEnv* env, jobject object);
  31
  32   void CreateMessageChannel(JNIEnv* env, jobjectArray ports,
  33       scoped_refptr<AwMessagePortMessageFilter> filter);
  34
  35   // AwMessagePortService implementation
  36   void OnConvertedWebToAppMessage(
  37       int message_port_id,
  38       const base::ListValue& message,
  39       const std::vector<int>& sent_message_port_ids) override;
  40   void OnMessagePortMessageFilterClosing(
  41       AwMessagePortMessageFilter* filter) override;
  42   void CleanupPort(int message_port_id) override;
  43
  44   // Methods called from Java.
  45   void PostAppToWebMessage(JNIEnv* env, jobject object, int sender_id,
  46       jstring message, jintArray sent_ports);
  47   void ClosePort(JNIEnv* env, jobject object, int message_port_id);
  48
  49   void RemoveSentPorts(const std::vector<int>& sent_ports);
  50
  51 private:
  52   void PostAppToWebMessageOnIOThread(
  53       int sender_id,
  54       base::string16* message,
  55       std::vector<int>* sent_ports);
  56   void CreateMessageChannelOnIOThread(
  57       scoped_refptr<AwMessagePortMessageFilter> filter,
  58       int* port1,
  59       int* port2);
  60   void OnMessageChannelCreated(
  61       base::android::ScopedJavaGlobalRef<jobjectArray>* ports,
  62       int* port1,
  63       int* port2);
  64   void AddPort(int message_port_id, AwMessagePortMessageFilter* filter);
  65   void PostClosePortMessage(int message_port_id);
  66
  67   JavaObjectWeakGlobalRef java_ref_;
  68   typedef std::map<int, AwMessagePortMessageFilter*> MessagePorts;
  69   MessagePorts ports_; // Access on IO thread
  70
  71   DISALLOW_COPY_AND_ASSIGN(AwMessagePortServiceImpl);
  72 };
  73
  74 bool RegisterAwMessagePortService(JNIEnv* env);
  75
  76 }  // namespace android_webview
  77
  78 #endif  // ANDROID_WEBVIEW_NATIVE_AW_MESSAGE_PORT_SERVICE_IMPL_H_