Touch Events capability negotiation

remoting/client/plugin/chromoting_instance.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 "remoting/client/plugin/chromoting_instance.h"
 
 #include <string>
 #include <vector>
 
 #if defined(OS_NACL)
@@ skipping 335 matching lines @@
     HandleExtensionMessage(*data);
   } else if (method == "allowMouseLock") {
     HandleAllowMouseLockMessage();
   } else if (method == "sendMouseInputWhenUnfocused") {
     HandleSendMouseInputWhenUnfocused();
   } else if (method == "delegateLargeCursors") {
     HandleDelegateLargeCursors();
   } else if (method == "enableDebugRegion") {
     HandleEnableDebugRegion(*data);
   } else if (method == "enableTouchEvents") {
-    HandleEnableTouchEvents();
+    HandleEnableTouchEvents(*data);
   }
 }
 
 void ChromotingInstance::DidChangeFocus(bool has_focus) {
   DCHECK(plugin_task_runner_->BelongsToCurrentThread());
 
   if (!IsConnected())
     return;
 
   input_handler_.DidChangeFocus(has_focus);
@@ skipping 611 matching lines @@
     const base::DictionaryValue& data) {
   bool enable = false;
   if (!data.GetBoolean("enable", &enable)) {
     LOG(ERROR) << "Invalid enableDebugRegion.";
     return;
   }
 
   video_renderer_->EnableDebugDirtyRegion(enable);
 }
 
-void ChromotingInstance::HandleEnableTouchEvents() {
-  RequestInputEvents(PP_INPUTEVENT_CLASS_TOUCH);
+void ChromotingInstance::HandleEnableTouchEvents(
+    const base::DictionaryValue& data) {
+  bool enable = false;
+  if (!data.GetBoolean("enable", &enable)) {
+    LOG(ERROR) << "Invalid handleTouchEvents.";
+    return;
+  }
+
+  if (enable) {
+    RequestInputEvents(PP_INPUTEVENT_CLASS_TOUCH);
+  } else {
+    ClearInputEventRequest(PP_INPUTEVENT_CLASS_TOUCH);
+  }
 }
 
 void ChromotingInstance::Disconnect() {
   DCHECK(plugin_task_runner_->BelongsToCurrentThread());
 
   VLOG(0) << "Disconnecting from host.";
 
   // Disconnect the input pipeline and teardown the connection.
   mouse_input_filter_.set_input_stub(nullptr);
   client_.reset();
@@ skipping 185 matching lines @@
 
 #if !defined(OS_NACL)
   // Log messages are forwarded to the webapp only in PNaCl version of the
   // plugin, so ProcessLogToUI() needs to be called explicitly in the non-PNaCl
   // version.
   ProcessLogToUI(message);
 #endif  // !defined(OS_NACL)
 }
 
 }  // namespace remoting