diff --git a/src/video/x11/SDL_x11window.c b/src/video/x11/SDL_x11window.c index 19bae22b8..8ed2a4437 100644 --- a/src/video/x11/SDL_x11window.c +++ b/src/video/x11/SDL_x11window.c @@ -1623,6 +1623,8 @@ X11_SetWindowMouseGrab(_THIS, SDL_Window * window, SDL_bool grabbed) } } + X11_Xinput2GrabTouch(_this, window); + /* Raise the window if we grab the mouse */ X11_XRaiseWindow(display, data->xwindow); @@ -1632,6 +1634,8 @@ X11_SetWindowMouseGrab(_THIS, SDL_Window * window, SDL_bool grabbed) } } else { X11_XUngrabPointer(display, CurrentTime); + + X11_Xinput2UngrabTouch(_this, window); } X11_XSync(display, False); } diff --git a/src/video/x11/SDL_x11xinput2.c b/src/video/x11/SDL_x11xinput2.c index 6634490e4..9f30da4b6 100644 --- a/src/video/x11/SDL_x11xinput2.c +++ b/src/video/x11/SDL_x11xinput2.c @@ -343,6 +343,50 @@ X11_Xinput2IsMultitouchSupported() #endif } +void +X11_Xinput2GrabTouch(_THIS, SDL_Window *window) +{ +#if SDL_VIDEO_DRIVER_X11_XINPUT2_SUPPORTS_MULTITOUCH + SDL_WindowData *data = (SDL_WindowData *) window->driverdata; + Display *display = data->videodata->display; + + unsigned char mask[4] = { 0, 0, 0, 0 }; + XIGrabModifiers mods; + XIEventMask eventmask; + + mods.modifiers = XIAnyModifier; + mods.status = 0; + + eventmask.deviceid = XIAllDevices; + eventmask.mask_len = sizeof(mask); + eventmask.mask = mask; + + XISetMask(eventmask.mask, XI_TouchBegin); + XISetMask(eventmask.mask, XI_TouchUpdate); + XISetMask(eventmask.mask, XI_TouchEnd); + XISetMask(eventmask.mask, XI_Motion); + + XIGrabTouchBegin(display, XIAllDevices, data->xwindow, True, &eventmask, 1, &mods); +#endif +} + +void +X11_Xinput2UngrabTouch(_THIS, SDL_Window *window) +{ +#if SDL_VIDEO_DRIVER_X11_XINPUT2_SUPPORTS_MULTITOUCH + SDL_WindowData *data = (SDL_WindowData *) window->driverdata; + Display *display = data->videodata->display; + + XIGrabModifiers mods; + + mods.modifiers = XIAnyModifier; + mods.status = 0; + + XIUngrabTouchBegin(display, XIAllDevices, data->xwindow, 1, &mods); +#endif +} + + #endif /* SDL_VIDEO_DRIVER_X11 */ /* vi: set ts=4 sw=4 expandtab: */ diff --git a/src/video/x11/SDL_x11xinput2.h b/src/video/x11/SDL_x11xinput2.h index 7fe4fb87a..5dd69266a 100644 --- a/src/video/x11/SDL_x11xinput2.h +++ b/src/video/x11/SDL_x11xinput2.h @@ -36,6 +36,8 @@ extern int X11_HandleXinput2Event(SDL_VideoData *videodata,XGenericEventCookie * extern int X11_Xinput2IsInitialized(void); extern int X11_Xinput2IsMultitouchSupported(void); extern void X11_Xinput2SelectTouch(_THIS, SDL_Window *window); +extern void X11_Xinput2GrabTouch(_THIS, SDL_Window *window); +extern void X11_Xinput2UngrabTouch(_THIS, SDL_Window *window); #endif /* SDL_x11xinput2_h_ */