[DevTools] Emulation domain implementation (browser side).

content/browser/devtools/protocol/page_handler.cc

 // Copyright 2014 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 "content/browser/devtools/protocol/page_handler.h"
 
 #include <string>
 
 #include "base/base64.h"
 #include "base/bind.h"
@@ skipping 103 matching lines @@
       screencast_max_height_(-1),
       capture_retry_count_(0),
       has_compositor_frame_metadata_(false),
       screencast_frame_sent_(0),
       screencast_frame_acked_(0),
       processing_screencast_frame_(false),
       color_picker_(new ColorPicker(base::Bind(
           &PageHandler::OnColorPicked, base::Unretained(this)))),
       frame_recorder_(new FrameRecorder()),
       host_(nullptr),
+      screencast_listener_(nullptr),
       weak_factory_(this) {
 }
 
 PageHandler::~PageHandler() {
 }
 
 void PageHandler::SetRenderViewHost(RenderViewHostImpl* host) {
   if (host_ == host)
     return;
 
@@ skipping 36 matching lines @@
     return;
   client_->InterstitialShown(InterstitialShownParams::Create());
 }
 
 void PageHandler::DidDetachInterstitialPage() {
   if (!enabled_)
     return;
   client_->InterstitialHidden(InterstitialHiddenParams::Create());
 }
 
+void PageHandler::SetScreencastListener(ScreencastListener* listener) {
+  screencast_listener_ = listener;
+}
+
 Response PageHandler::Enable() {
   enabled_ = true;
   return Response::FallThrough();
 }
 
 Response PageHandler::Disable() {
   enabled_ = false;
   touch_emulation_enabled_ = false;
   screencast_enabled_ = false;
   device_emulation_enabled_ = false;
   UpdateTouchEventEmulationState();
   UpdateDeviceEmulationState();
   color_picker_->SetEnabled(false);
+  if (screencast_listener_)
+    screencast_listener_->ScreencastEnabledChanged();
   return Response::FallThrough();
 }
 
 Response PageHandler::Reload(const bool* ignoreCache,
                              const std::string* script_to_evaluate_on_load,
                              const std::string* script_preprocessor) {
   if (!host_)
     return Response::InternalError("Could not connect to view");
 
   WebContents* web_contents = WebContents::FromRenderViewHost(host_);
@@ skipping 229 matching lines @@
 
   UpdateTouchEventEmulationState();
   bool visible = !host_->is_hidden();
   NotifyScreencastVisibility(visible);
   if (visible) {
     if (has_compositor_frame_metadata_)
       InnerSwapCompositorFrame();
     else
       host_->Send(new ViewMsg_ForceRedraw(host_->GetRoutingID(), 0));
   }
+  if (screencast_listener_)
+    screencast_listener_->ScreencastEnabledChanged();
   return Response::FallThrough();
 }
 
 Response PageHandler::StopScreencast() {
   screencast_enabled_ = false;
   UpdateTouchEventEmulationState();
+  if (screencast_listener_)
+    screencast_listener_->ScreencastEnabledChanged();
   return Response::FallThrough();
 }
 
 Response PageHandler::StartRecordingFrames(int max_frame_count) {
   return frame_recorder_->StartRecordingFrames(max_frame_count);
 }
 
 Response PageHandler::StopRecordingFrames(DevToolsCommandId command_id) {
   return frame_recorder_->StopRecordingFrames(base::Bind(
       &PageHandler::OnFramesRecorded, base::Unretained(this), command_id));
@@ skipping 210 matching lines @@
 
 void PageHandler::OnFramesRecorded(
     DevToolsCommandId command_id,
     scoped_refptr<StopRecordingFramesResponse> response_data) {
   client_->SendStopRecordingFramesResponse(command_id, response_data);
 }
 
 }  // namespace page
 }  // namespace devtools
 }  // namespace content