[CRD iOS] Hook the touch input feedback

remoting/client/gesture_interpreter.h

Index: remoting/client/gesture_interpreter.h
diff --git a/remoting/client/gesture_interpreter.h b/remoting/client/gesture_interpreter.h
index f4d369b8af60ccf4ad225baba3f2e2cd2382a283..920ff98593b4b485679772238ba6f4e81a35c9fb 100644
--- a/remoting/client/gesture_interpreter.h
+++ b/remoting/client/gesture_interpreter.h
@@ -7,14 +7,15 @@
 
 #include <memory>
 
-#include "remoting/client/chromoting_session.h"
 #include "remoting/client/desktop_viewport.h"
 #include "remoting/client/fling_animation.h"
+#include "remoting/client/input_strategy.h"
 #include "remoting/proto/event.pb.h"
 
 namespace remoting {
 
-class InputStrategy;
+class ChromotingSession;
+class RenderStub;
 
 // This is a class for interpreting a raw touch input into actions like moving
 // the viewport and injecting mouse clicks.
@@ -22,9 +23,7 @@ class GestureInterpreter {
  public:
   enum GestureState { GESTURE_BEGAN, GESTURE_CHANGED, GESTURE_ENDED };
 
-  GestureInterpreter(
-      const DesktopViewport::TransformationCallback& on_transformation_changed,
-      ChromotingSession* input_stub);
+  GestureInterpreter(RenderStub* render_stub, ChromotingSession* input_stub);
   ~GestureInterpreter();
 
   // Coordinates of the OpenGL view surface will be used.
@@ -65,8 +64,26 @@ class GestureInterpreter {
                         float y,
                         protocol::MouseEvent_MouseButton button);
 
+  // Tracks the touch point and gets back the cursor position from the input
+  // strategy.
+  void TrackAndGetPosition(float touch_x,
+                           float touch_y,
+                           float* cursor_x,
+                           float* cursor_y);
+
+  // If the cursor is visible, send the cursor position from the input strategy
+  // to the render stub.
+  void SetCursorPositionOnRenderStub();
+
+  // Starts the given feedback at (cursor_x, cursor_y) if the feedback radius
+  // is non-zero.
+  void StartInputFeedback(float cursor_x,
+                          float cursor_y,
+                          InputStrategy::InputFeedbackType feedback_type);
+
   std::unique_ptr<InputStrategy> input_strategy_;
   DesktopViewport viewport_;
+  RenderStub* render_stub_;
   ChromotingSession* input_stub_;
   bool is_dragging_mode_ = false;