Implement pepper interface and plumbing for HRD's UI on ChromeOS

ppapi/proxy/talk_resource.cc

 // Copyright (c) 2012 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 "ppapi/proxy/talk_resource.h"
 
 #include "ppapi/proxy/ppapi_messages.h"
 
 namespace ppapi {
 namespace proxy {
 
 TalkResource::TalkResource(Connection connection, PP_Instance instance)
-    : PluginResource(connection, instance) {
+    : PluginResource(connection, instance),
+      event_callback_(NULL),
+      event_callback_user_data_(NULL) {
+  SendCreate(BROWSER, PpapiHostMsg_Talk_Create());
 }
 
 TalkResource::~TalkResource() {
 }
 
 thunk::PPB_Talk_Private_API* TalkResource::AsPPB_Talk_Private_API() {
   return this;
 }
 
-int32_t TalkResource::GetPermission(scoped_refptr<TrackedCallback> callback) {
-  if (TrackedCallback::IsPending(callback_))
+int32_t TalkResource::RequestPermission(
+    PP_TalkPermission permission,
+    scoped_refptr<TrackedCallback> callback) {
+  if (TrackedCallback::IsPending(permission_callback_))
     return PP_ERROR_INPROGRESS;
-  callback_ = callback;
 
-  if (!sent_create_to_browser())
-    SendCreate(BROWSER, PpapiHostMsg_Talk_Create());
+  permission_callback_ = callback;
 
-  Call<PpapiPluginMsg_Talk_GetPermissionReply>(
+  Call<PpapiPluginMsg_Talk_RequestPermissionReply>(
       BROWSER,
-      PpapiHostMsg_Talk_GetPermission(),
-      base::Bind(&TalkResource::GetPermissionReply, base::Unretained(this)));
+      PpapiHostMsg_Talk_RequestPermission(permission),
+      base::Bind(&TalkResource::OnRequestPermissionReply,
+                 base::Unretained(this)));
   return PP_OK_COMPLETIONPENDING;
 }
 
-void TalkResource::GetPermissionReply(
+int32_t TalkResource::StartRemoting(PP_TalkEventCallback event_callback,
+                                    void* user_data,
+                                    scoped_refptr<TrackedCallback> callback) {
+  if (TrackedCallback::IsPending(start_callback_) ||
+      event_callback_ != NULL)
+    return PP_ERROR_INPROGRESS;
+
+  start_callback_ = callback;
+  event_callback_ = event_callback;
+  event_callback_user_data_ = user_data;
+
+  Call<PpapiPluginMsg_Talk_StartRemotingReply>(
+      BROWSER,
+      PpapiHostMsg_Talk_StartRemoting(),
+      base::Bind(&TalkResource::OnStartRemotingReply,
+                 base::Unretained(this)));
+  return PP_OK_COMPLETIONPENDING;
+}
+
+int32_t TalkResource::StopRemoting(scoped_refptr<TrackedCallback> callback) {
+  if (TrackedCallback::IsPending(stop_callback_))
+    return PP_ERROR_INPROGRESS;
+
+  if (event_callback_ == NULL)
+    return PP_ERROR_FAILED;
+
+  stop_callback_ = callback;
+
+  Call<PpapiPluginMsg_Talk_StopRemotingReply>(
+      BROWSER,
+      PpapiHostMsg_Talk_StopRemoting(),
+      base::Bind(&TalkResource::OnStopRemotingReply,
+                 base::Unretained(this)));
+  return PP_OK_COMPLETIONPENDING;
+}
+
+void TalkResource::OnReplyReceived(const ResourceMessageReplyParams& params,
+                                   const IPC::Message& msg) {
+  IPC_BEGIN_MESSAGE_MAP(TalkResource, msg)
+    PPAPI_DISPATCH_PLUGIN_RESOURCE_CALL(
+        PpapiPluginMsg_Talk_NotifyEvent,
+        OnNotifyEvent)
+    PPAPI_DISPATCH_PLUGIN_RESOURCE_CALL_UNHANDLED(
+        PluginResource::OnReplyReceived(params, msg))
+  IPC_END_MESSAGE_MAP()
+}
+
+void TalkResource::OnNotifyEvent(const ResourceMessageReplyParams& params,
+                                 PP_TalkEvent event) {
+  if (event_callback_ != NULL)
+    event_callback_(event_callback_user_data_, event);
+}
+
+void TalkResource::OnRequestPermissionReply(
     const ResourceMessageReplyParams& params) {
-  callback_->Run(params.result());
+  permission_callback_->Run(params.result());
+}
+
+void TalkResource::OnStartRemotingReply(
+    const ResourceMessageReplyParams& params) {
+  start_callback_->Run(params.result());
+}
+
+void TalkResource::OnStopRemotingReply(
+    const ResourceMessageReplyParams& params) {
+  event_callback_ = NULL;
+  event_callback_user_data_ = NULL;
+  stop_callback_->Run(params.result());
 }
 
 }  // namespace proxy
 }  // namespace ppapi