src/remoting/host/fake_host_extension.cc

   1 // Copyright 2014 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 #include "remoting/host/fake_host_extension.h"
   6
   7 #include <string>
   8
   9 #include "base/logging.h"
  10 #include "remoting/codec/video_encoder.h"
  11 #include "remoting/host/host_extension_session.h"
  12 #include "remoting/proto/control.pb.h"
  13 #include "third_party/webrtc/modules/desktop_capture/desktop_capturer.h"
  14
  15 namespace remoting {
  16
  17 class FakeExtension::Session : public HostExtensionSession {
  18  public:
  19   Session(FakeExtension* extension, const std::string& message_type);
  20   ~Session() override {}
  21
  22   // HostExtensionSession interface.
  23   void OnCreateVideoCapturer(
  24       scoped_ptr<webrtc::DesktopCapturer>* encoder) override;
  25   void OnCreateVideoEncoder(scoped_ptr<VideoEncoder>* encoder) override;
  26   bool ModifiesVideoPipeline() const override;
  27   bool OnExtensionMessage(ClientSessionControl* client_session_control,
  28                           protocol::ClientStub* client_stub,
  29                           const protocol::ExtensionMessage& message) override;
  30
  31  private:
  32   FakeExtension* extension_;
  33   std::string message_type_;
  34
  35   DISALLOW_COPY_AND_ASSIGN(Session);
  36 };
  37
  38 FakeExtension::Session::Session(
  39     FakeExtension* extension, const std::string& message_type)
  40   : extension_(extension),
  41     message_type_(message_type) {
  42 }
  43
  44 void FakeExtension::Session::OnCreateVideoCapturer(
  45     scoped_ptr<webrtc::DesktopCapturer>* capturer) {
  46   extension_->has_wrapped_video_capturer_ = true;
  47   if (extension_->steal_video_capturer_) {
  48     capturer->reset();
  49   }
  50 }
  51
  52 void FakeExtension::Session::OnCreateVideoEncoder(
  53     scoped_ptr<VideoEncoder>* encoder) {
  54   extension_->has_wrapped_video_encoder_ = true;
  55 }
  56
  57 bool FakeExtension::Session::ModifiesVideoPipeline() const {
  58   return extension_->steal_video_capturer_;
  59 }
  60
  61 bool FakeExtension::Session::OnExtensionMessage(
  62     ClientSessionControl* client_session_control,
  63     protocol::ClientStub* client_stub,
  64     const protocol::ExtensionMessage& message) {
  65   if (message.type() == message_type_) {
  66     extension_->has_handled_message_ = true;
  67     return true;
  68   }
  69   return false;
  70 }
  71
  72 FakeExtension::FakeExtension(const std::string& message_type,
  73                              const std::string& capability)
  74   : message_type_(message_type),
  75     capability_(capability),
  76     steal_video_capturer_(false),
  77     has_handled_message_(false),
  78     has_wrapped_video_encoder_(false),
  79     has_wrapped_video_capturer_(false),
  80     was_instantiated_(false) {
  81 }
  82
  83 FakeExtension::~FakeExtension() {
  84 }
  85
  86 std::string FakeExtension::capability() const {
  87   return capability_;
  88 }
  89
  90 scoped_ptr<HostExtensionSession> FakeExtension::CreateExtensionSession(
  91     ClientSessionControl* client_session_control,
  92     protocol::ClientStub* client_stub) {
  93   DCHECK(!was_instantiated());
  94   was_instantiated_ = true;
  95   scoped_ptr<HostExtensionSession> session(new Session(this, message_type_));
  96   return session.Pass();
  97 }
  98
  99 } // namespace remoting