Add direct touchscreen mouse support

input.cpp

@@ -8,6 +8,9 @@
 
 #define KEY_PREFIX 0x80
 
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#define MAX(a, b) ((a) > (b) ? (a) : (b))
+
 static int ConvertPPButtonToLiButton(PP_InputEvent_MouseButton ppButton) {
     switch (ppButton) {
         case PP_INPUTEVENT_MOUSEBUTTON_LEFT:
@@ -231,6 +234,39 @@ bool MoonlightInstance::HandleInputEvent(const pp::InputEvent& event) {
             return true;
         }
 
+        case PP_INPUTEVENT_TYPE_TOUCHMOVE:
+        case PP_INPUTEVENT_TYPE_TOUCHSTART: {
+            pp::TouchInputEvent touchEvent(event);
+
+            pp::FloatPoint touchPoint = touchEvent.GetTouchByIndex(PP_TOUCHLIST_TYPE_TARGETTOUCHES, 0).position();
+
+            // Scale the touch coordinates to the video rect
+            //
+            // For some reason, the x coordinate is already relative to the plugin rect,
+            // while the y coordinate is not. No clue why that is the case but oh well...
+            short x = MIN(MAX(touchPoint.x(), 0), m_PluginRect.width());
+            short y = MIN(MAX(touchPoint.y() - m_PluginRect.y(), 0), m_PluginRect.height());
+
+            // Update the mouse position prior to sending the button down
+            LiSendMousePositionEvent(x, y, m_PluginRect.width(), m_PluginRect.height());
+
+            if (event.GetType() == PP_INPUTEVENT_TYPE_TOUCHSTART &&
+                    touchEvent.GetTouchCount(PP_TOUCHLIST_TYPE_TARGETTOUCHES) == 1) {
+                LiSendMouseButtonEvent(BUTTON_ACTION_PRESS, BUTTON_LEFT);
+            }
+            return true;
+        }
+
+        case PP_INPUTEVENT_TYPE_TOUCHCANCEL:
+        case PP_INPUTEVENT_TYPE_TOUCHEND: {
+            pp::TouchInputEvent touchEvent(event);
+
+            if (touchEvent.GetTouchCount(PP_TOUCHLIST_TYPE_TARGETTOUCHES) == 1) {
+                LiSendMouseButtonEvent(BUTTON_ACTION_RELEASE, BUTTON_LEFT);
+            }
+            return true;
+        }
+        
         default: {
             return false;
         }

main.cpp

@@ -40,7 +40,7 @@ void MoonlightInstance::OnConnectionStarted(uint32_t unused) {
     PostMessage(response);
     
     // Start receiving input events
-    RequestInputEvents(PP_INPUTEVENT_CLASS_MOUSE | PP_INPUTEVENT_CLASS_WHEEL);
+    RequestInputEvents(PP_INPUTEVENT_CLASS_MOUSE | PP_INPUTEVENT_CLASS_WHEEL | PP_INPUTEVENT_CLASS_TOUCH);
     
     // Filtering is suboptimal but it ensures that we can pass keyboard events
     // to the browser when mouse lock is disabled. This is neccessary for Esc
@@ -53,7 +53,10 @@ void MoonlightInstance::OnConnectionStopped(uint32_t error) {
     m_Running = false;
     
     // Stop receiving input events
-    ClearInputEventRequest(PP_INPUTEVENT_CLASS_MOUSE | PP_INPUTEVENT_CLASS_WHEEL | PP_INPUTEVENT_CLASS_KEYBOARD);
+    ClearInputEventRequest(PP_INPUTEVENT_CLASS_MOUSE |
+                           PP_INPUTEVENT_CLASS_WHEEL |
+                           PP_INPUTEVENT_CLASS_KEYBOARD |
+                           PP_INPUTEVENT_CLASS_TOUCH);
     
     // Unlock the mouse
     UnlockMouse();

moonlight-common-c

@@ -1 +1 @@
-Subproject commit f489c9d725d22517d3b3a017f6bbb0a22ed43707
+Subproject commit 247b1fe0e32d80ce02ede4c2b4a835b9c085abe4

moonlight.hpp

@@ -143,6 +143,7 @@ class MoonlightInstance : public pp::Instance, public pp::MouseLock {
         void PaintPicture(void);
         bool InitializeRenderingSurface(int width, int height);
         void DidChangeFocus(bool got_focus);
+        void DidChangeView(const pp::View& view);
         
         static int VidDecSetup(int videoFormat, int width, int height, int redrawRate, void* context, int drFlags);
         static void VidDecCleanup(void);
@@ -185,6 +186,8 @@ class MoonlightInstance : public pp::Instance, public pp::MouseLock {
         bool m_IsPainting;
         bool m_RequestIdrFrame;
 
+        pp::Rect m_PluginRect;
+    
         OpusMSDecoder* m_OpusDecoder;
         pp::Audio m_AudioPlayer;
         

viddec.cpp

@@ -66,6 +66,10 @@ void MoonlightInstance::DidChangeFocus(bool got_focus) {
     }
 }
 
+void MoonlightInstance::DidChangeView(const pp::View& view) {
+    m_PluginRect = view.GetRect();
+}
+
 bool MoonlightInstance::InitializeRenderingSurface(int width, int height) {
     if (!glInitializePPAPI(pp::Module::Get()->get_browser_interface())) {
         return false;