ppapi: PPB_VpnProvider: Define API

ppapi/proxy/vpn_provider_resource.h

+// Copyright (c) 2015 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 PPAPI_PROXY_VPN_PROVIDER_RESOURCE_H_
+#define PPAPI_PROXY_VPN_PROVIDER_RESOURCE_H_
+
+#include "ppapi/c/ppb_vpn_provider.h"
+#include "ppapi/proxy/plugin_dispatcher.h"
+#include "ppapi/proxy/plugin_resource.h"
+#include "ppapi/shared_impl/tracked_callback.h"
+#include "ppapi/thunk/ppb_vpn_provider_api.h"
+
+namespace ppapi {
+namespace proxy {
+
+class PPAPI_PROXY_EXPORT VpnProviderResource
+    : public PluginResource,
+      public NON_EXPORTED_BASE(thunk::PPB_VpnProvider_API) {
+ public:
+  VpnProviderResource(Connection connection, PP_Instance instance);
+  virtual ~VpnProviderResource();
+
+  // PluginResource implementation.
+  virtual thunk::PPB_VpnProvider_API* AsPPB_VpnProvider_API() override;
+
+  // PPB_VpnProvider_API implementation.
+  virtual int32_t CreateConfig(
+      const PP_Var& name,
+      PP_Var* id,
+      const scoped_refptr<TrackedCallback>& callback) override;
+  virtual int32_t DestroyConfig(
+      const PP_Var& id,
+      const scoped_refptr<TrackedCallback>& callback) override;
+  virtual int32_t SetParameters(
+      const PP_Var& address,
+      const PP_Var& broadcast_address,
+      int32_t mtu,
+      const PP_Var& exclusion_list,
+      const PP_Var& inclusion_list,
+      const PP_Var& domain_search,
+      const PP_Var& dns_servers,
+      const scoped_refptr<TrackedCallback>& callback) override;
+  virtual int32_t SendPacket(const PP_Var& packet) override;
+  virtual int32_t NotifyConnectionStateChanged(
+      PP_VpnProvider_VpnConnectionState status,
+      const scoped_refptr<TrackedCallback>& callback) override;
+  virtual int32_t GetPacket(
+      PP_Var* packet,
+      const scoped_refptr<TrackedCallback>& callback) override;
+  virtual int32_t GetPlatformMessage(
+      PP_Var* message,
+      const scoped_refptr<TrackedCallback>& callback) override;
+  virtual int32_t GetConfigMessage(
+      PP_Var* message,
+      const scoped_refptr<TrackedCallback>& callback) override;
+  virtual int32_t GetUIMessage(
+      PP_Var* message,
+      const scoped_refptr<TrackedCallback>& callback) override;
+
+ private:
+  // PluginResource overrides.
+  virtual void OnReplyReceived(const ResourceMessageReplyParams& params,
+                               const IPC::Message& msg) override;
+
+  // PPB_VpnProvider IPC Replies
+  void OnPluginMsgCreateConfigReply(const ResourceMessageReplyParams& params,
+                                    int32_t result,
+                                    const std::string& id);
+  void OnPluginMsgDestroyConfigReply(const ResourceMessageReplyParams& params,
+                                     int32_t result);
+  void OnPluginMsgSetParametersReply(const ResourceMessageReplyParams& params,
+                                     int32_t result);
+  void OnPluginMsgNotifyConnectionStateChangedReply(
+      const ResourceMessageReplyParams& params,
+      int32_t result);
+
+  // Browser callbacks
+  void OnPluginMsgOnPlatformMessage(const ResourceMessageReplyParams& params,
+                                    const std::string& id,
+                                    PP_VpnProvider_PlatformMessage status,
+                                    const std::string& message);
+  void OnPluginMsgOnPacketReceived(const ResourceMessageReplyParams& params,
+                                   const std::vector<char>& data);
+  void OnPluginMsgOnConfigEvent(const ResourceMessageReplyParams& params,
+                                const std::string& id,
+                                PP_VpnProvider_ConfigMessage message,
+                                const std::string& name,
+                                const std::string& data);
+  void OnPluginMsgOnUIEvent(const ResourceMessageReplyParams& params,
+                            PP_VpnProvider_UIEvent event,
+                            const std::string& id);
+
+  // Picks up a received message and moves it to user receiving buffer. This
+  // function is used in both Get*() for fast returning path, and
+  // OnPluginMsgOn*() for delayed callback invocations.
+  void WritePacket();
+  void WritePlatformMessage();
+  void WriteConfigMessage();
+  void WriteUIMessage();
+
+  // Holds user callbacks to invoke later.
+  scoped_refptr<TrackedCallback> create_config_callback_;
+  scoped_refptr<TrackedCallback> destroy_config_callback_;
+  scoped_refptr<TrackedCallback> set_parameters_callback_;
+  scoped_refptr<TrackedCallback> send_state_change_notification_callback_;
+
+  scoped_refptr<TrackedCallback> get_packet_callback_;
+  scoped_refptr<TrackedCallback> get_platform_message_callback_;
+  scoped_refptr<TrackedCallback> get_config_message_callback_;
+  scoped_refptr<TrackedCallback> get_ui_message_callback_;
+
+  // Keeps a pointer to the callback variable provided.
+  // Received data will be copied to this variable on ready.
+  PP_Var* create_config_callback_var_;
+  PP_Var* get_packet_callback_var_;
+  PP_Var* get_platform_message_callback_var_;
+  PP_Var* get_config_message_callback_var_;
+  PP_Var* get_ui_message_callback_var_;
+
+  // Keeps received data.
+  std::queue<scoped_refptr<Var>> received_packets_;
+  std::queue<scoped_refptr<Var>> received_platform_messages_;
+  std::queue<scoped_refptr<Var>> received_config_messages_;
+  std::queue<scoped_refptr<Var>> received_ui_messages_;
+
+  DISALLOW_COPY_AND_ASSIGN(VpnProviderResource);
+};
+
+}  // namespace proxy
+}  // namespace ppapi
+
+#endif  // PPAPI_PROXY_VPN_PROVIDER_RESOURCE_H_