Allow mouse-input to be enabled even if the plugin does not have keyboard focus.

BUG=376070

Review URL: https://codereview.chromium.org/296943003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@272330 0039d316-1c4b-4281-b951-d872f2087c98

remoting/client/plugin/chromoting_instance.cc

@@ -360,6 +360,8 @@ void ChromotingInstance::HandleMessage(const pp::Var& message) {
     HandleAllowMouseLockMessage();
   } else if (method == "enableMediaSourceRendering") {
     HandleEnableMediaSourceRendering();
+  } else if (method == "sendMouseInputWhenUnfocused") {
+    HandleSendMouseInputWhenUnfocused();
   }
 }
 
@@ -964,6 +966,10 @@ void ChromotingInstance::HandleEnableMediaSourceRendering() {
   use_media_source_rendering_ = true;
 }
 
+void ChromotingInstance::HandleSendMouseInputWhenUnfocused() {
+  input_handler_.set_send_mouse_input_when_unfocused(true);
+}
+
 ChromotingStats* ChromotingInstance::GetStats() {
   if (!video_renderer_.get())
     return NULL;

remoting/client/plugin/chromoting_instance.h

@@ -209,6 +209,7 @@ class ChromotingInstance :
   void HandleExtensionMessage(const base::DictionaryValue& data);
   void HandleAllowMouseLockMessage();
   void HandleEnableMediaSourceRendering();
+  void HandleSendMouseInputWhenUnfocused();
 
   // Helper method called from Connect() to connect with parsed config.
   void ConnectWithConfig(const ClientConfig& config,

remoting/client/plugin/pepper_input_handler.cc

@@ -23,6 +23,7 @@ PepperInputHandler::PepperInputHandler(
       input_stub_(NULL),
       callback_factory_(this),
       has_focus_(false),
+      send_mouse_input_when_unfocused_(false),
       mouse_lock_state_(MouseLockDisallowed),
       wheel_delta_x_(0),
       wheel_delta_y_(0),
@@ -74,7 +75,7 @@ bool PepperInputHandler::HandleInputEvent(const pp::InputEvent& event) {
 
     case PP_INPUTEVENT_TYPE_MOUSEDOWN:
     case PP_INPUTEVENT_TYPE_MOUSEUP: {
-      if (!has_focus_)
+      if (!has_focus_ && !send_mouse_input_when_unfocused_)
         return false;
 
       pp::MouseInputEvent pp_mouse_event(event);
@@ -114,7 +115,7 @@ bool PepperInputHandler::HandleInputEvent(const pp::InputEvent& event) {
     case PP_INPUTEVENT_TYPE_MOUSEMOVE:
     case PP_INPUTEVENT_TYPE_MOUSEENTER:
     case PP_INPUTEVENT_TYPE_MOUSELEAVE: {
-      if (!has_focus_)
+      if (!has_focus_ && !send_mouse_input_when_unfocused_)
         return false;
 
       pp::MouseInputEvent pp_mouse_event(event);
@@ -135,7 +136,7 @@ bool PepperInputHandler::HandleInputEvent(const pp::InputEvent& event) {
     }
 
     case PP_INPUTEVENT_TYPE_WHEEL: {
-      if (!has_focus_)
+      if (!has_focus_ && !send_mouse_input_when_unfocused_)
         return false;
 
       pp::WheelInputEvent pp_wheel_event(event);

remoting/client/plugin/pepper_input_handler.h

@@ -48,6 +48,12 @@ class PepperInputHandler : public pp::MouseLock {
   void SetMouseCursor(scoped_ptr<pp::ImageData> image,
                       const pp::Point& hotspot);
 
+  // Enable or disable sending mouse input when the plugin does not have input
+  // focus.
+  void set_send_mouse_input_when_unfocused(bool send) {
+    send_mouse_input_when_unfocused_ = send;
+  }
+
  private:
   enum MouseLockState {
     MouseLockDisallowed,
@@ -90,6 +96,10 @@ class PepperInputHandler : public pp::MouseLock {
   // True if the plugin has focus.
   bool has_focus_;
 
+  // True if the plugin should respond to mouse input even if it does not have
+  // keyboard focus.
+  bool send_mouse_input_when_unfocused_;
+
   MouseLockState mouse_lock_state_;
 
   // Accumulated sub-pixel and sub-tick deltas from wheel events.