clutter: Add smooth scroll and touch API to virtual devices

So far only implemented on the evdev backend,as X11 doesn't support touch
devices nor smooth scrolling via XTEST.

5 files changed, 304 insertions, 0 deletions

diff --git a/clutter/clutter/clutter-virtual-input-device.c b/clutter/clutter/clutter-virtual-input-device.c
index 8cab4bce8..d86433361 100644
--- a/clutter/clutter/clutter-virtual-input-device.c
+++ b/clutter/clutter/clutter-virtual-input-device.c
@@ -128,6 +128,61 @@ clutter_virtual_input_device_notify_discrete_scroll (ClutterVirtualInputDevice *
                                  direction, scroll_source);
 }
 
+void
+clutter_virtual_input_device_notify_scroll_continuous (ClutterVirtualInputDevice *virtual_device,
+                                                       uint64_t                   time_us,
+                                                       double                     dx,
+                                                       double                     dy,
+                                                       ClutterScrollSource        scroll_source,
+                                                       ClutterScrollFinishFlags   finish_flags)
+{
+  ClutterVirtualInputDeviceClass *klass =
+    CLUTTER_VIRTUAL_INPUT_DEVICE_GET_CLASS (virtual_device);
+
+  klass->notify_scroll_continuous (virtual_device, time_us,
+                                   dx, dy, scroll_source, finish_flags);
+}
+
+void
+clutter_virtual_input_device_notify_touch_down (ClutterVirtualInputDevice *virtual_device,
+                                                uint64_t                   time_us,
+                                                int                        slot,
+                                                double                     x,
+                                                double                     y)
+{
+  ClutterVirtualInputDeviceClass *klass =
+    CLUTTER_VIRTUAL_INPUT_DEVICE_GET_CLASS (virtual_device);
+
+  klass->notify_touch_down (virtual_device, time_us,
+                            slot, x, y);
+}
+
+void
+clutter_virtual_input_device_notify_touch_motion (ClutterVirtualInputDevice *virtual_device,
+                                                  uint64_t                   time_us,
+                                                  int                        slot,
+                                                  double                     x,
+                                                  double                     y)
+{
+  ClutterVirtualInputDeviceClass *klass =
+    CLUTTER_VIRTUAL_INPUT_DEVICE_GET_CLASS (virtual_device);
+
+  klass->notify_touch_motion (virtual_device, time_us,
+                              slot, x, y);
+}
+
+void
+clutter_virtual_input_device_notify_touch_up (ClutterVirtualInputDevice *virtual_device,
+                                              uint64_t                   time_us,
+                                              int                        slot)
+{
+  ClutterVirtualInputDeviceClass *klass =
+    CLUTTER_VIRTUAL_INPUT_DEVICE_GET_CLASS (virtual_device);
+
+  klass->notify_touch_up (virtual_device, time_us,
+                          slot);
+}
+
 /**
  * clutter_virtual_input_device_get_manager:
  * @virtual_device: a virtual device
diff --git a/clutter/clutter/clutter-virtual-input-device.h b/clutter/clutter/clutter-virtual-input-device.h
index a2a0b30ba..11b747a7f 100644
--- a/clutter/clutter/clutter-virtual-input-device.h
+++ b/clutter/clutter/clutter-virtual-input-device.h
@@ -81,6 +81,29 @@ struct _ClutterVirtualInputDeviceClass
                                   uint64_t                   time_us,
                                   ClutterScrollDirection     direction,
                                   ClutterScrollSource        scroll_source);
+
+  void (*notify_scroll_continuous) (ClutterVirtualInputDevice *virtual_device,
+                                    uint64_t                   time_us,
+                                    double                     dx,
+                                    double                     dy,
+                                    ClutterScrollSource        scroll_source,
+                                    ClutterScrollFinishFlags   finish_flags);
+
+  void (*notify_touch_down) (ClutterVirtualInputDevice *virtual_device,
+                             uint64_t                   time_us,
+                             int                        slot,
+                             double                     x,
+                             double                     y);
+
+  void (*notify_touch_motion) (ClutterVirtualInputDevice *virtual_device,
+                               uint64_t                   time_us,
+                               int                        slot,
+                               double                     x,
+                               double                     y);
+
+  void (*notify_touch_up) (ClutterVirtualInputDevice *virtual_device,
+                           uint64_t                   time_us,
+                           int                        slot);
 };
 
 CLUTTER_AVAILABLE_IN_ALL
@@ -119,6 +142,32 @@ void clutter_virtual_input_device_notify_discrete_scroll (ClutterVirtualInputDev
                                                           ClutterScrollDirection     direction,
                                                           ClutterScrollSource        scroll_source);
 
+CLUTTER_AVAILABLE_IN_ALL
+void clutter_virtual_input_device_notify_scroll_continuous (ClutterVirtualInputDevice *virtual_device,
+                                                            uint64_t                   time_us,
+                                                            double                     dx,
+                                                            double                     dy,
+                                                            ClutterScrollSource        scroll_source,
+                                                            ClutterScrollFinishFlags   finish_flags);
+
+CLUTTER_AVAILABLE_IN_ALL
+void clutter_virtual_input_device_notify_touch_down (ClutterVirtualInputDevice *virtual_device,
+                                                     uint64_t                   time_us,
+                                                     int                        slot,
+                                                     double                     x,
+                                                     double                     y);
+
+CLUTTER_AVAILABLE_IN_ALL
+void clutter_virtual_input_device_notify_touch_motion (ClutterVirtualInputDevice *virtual_device,
+                                                       uint64_t                   time_us,
+                                                       int                        slot,
+                                                       double                     x,
+                                                       double                     y);
+
+CLUTTER_AVAILABLE_IN_ALL
+void clutter_virtual_input_device_notify_touch_up (ClutterVirtualInputDevice *virtual_device,
+                                                   uint64_t                   time_us,
+                                                   int                        slot);
 
 CLUTTER_AVAILABLE_IN_ALL
 ClutterDeviceManager * clutter_virtual_input_device_get_manager (ClutterVirtualInputDevice *virtual_device);
diff --git a/clutter/clutter/evdev/clutter-input-device-evdev.c b/clutter/clutter/evdev/clutter-input-device-evdev.c
index 322f5224e..6c52361ee 100644
--- a/clutter/clutter/evdev/clutter-input-device-evdev.c
+++ b/clutter/clutter/evdev/clutter-input-device-evdev.c
@@ -1393,6 +1393,9 @@ _clutter_input_device_evdev_new_virtual (ClutterDeviceManager *manager,
     case CLUTTER_POINTER_DEVICE:
       name = "Virtual pointer device for seat";
       break;
+    case CLUTTER_TOUCHSCREEN_DEVICE:
+      name = "Virtual touchscreen device for seat";
+      break;
     default:
       name = "Virtual device for seat";
       break;
diff --git a/clutter/clutter/evdev/clutter-virtual-input-device-evdev.c b/clutter/clutter/evdev/clutter-virtual-input-device-evdev.c
index e487708d9..fe628da85 100644
--- a/clutter/clutter/evdev/clutter-virtual-input-device-evdev.c
+++ b/clutter/clutter/evdev/clutter-virtual-input-device-evdev.c
@@ -449,6 +449,124 @@ clutter_virtual_input_device_evdev_notify_discrete_scroll (ClutterVirtualInputDe
 }
 
 static void
+clutter_virtual_input_device_evdev_notify_scroll_continuous (ClutterVirtualInputDevice *virtual_device,
+                                                             uint64_t                   time_us,
+                                                             double                     dx,
+                                                             double                     dy,
+                                                             ClutterScrollSource        scroll_source,
+                                                             ClutterScrollFinishFlags   finish_flags)
+{
+  ClutterVirtualInputDeviceEvdev *virtual_evdev =
+    CLUTTER_VIRTUAL_INPUT_DEVICE_EVDEV (virtual_device);
+
+  if (time_us == CLUTTER_CURRENT_TIME)
+    time_us = g_get_monotonic_time ();
+
+  clutter_seat_evdev_notify_scroll_continuous (virtual_evdev->seat,
+                                               virtual_evdev->device,
+                                               time_us,
+                                               dx, dy,
+                                               scroll_source,
+                                               CLUTTER_SCROLL_FINISHED_NONE);
+}
+
+static void
+clutter_virtual_input_device_evdev_notify_touch_down (ClutterVirtualInputDevice *virtual_device,
+                                                      uint64_t                   time_us,
+                                                      int                        device_slot,
+                                                      double                     x,
+                                                      double                     y)
+{
+  ClutterVirtualInputDeviceEvdev *virtual_evdev =
+    CLUTTER_VIRTUAL_INPUT_DEVICE_EVDEV (virtual_device);
+  ClutterInputDeviceEvdev *device_evdev =
+    CLUTTER_INPUT_DEVICE_EVDEV (virtual_evdev->device);
+  ClutterTouchState *touch_state;
+
+  if (time_us == CLUTTER_CURRENT_TIME)
+    time_us = g_get_monotonic_time ();
+
+  touch_state = clutter_input_device_evdev_acquire_touch_state (device_evdev,
+                                                                device_slot);
+  if (!touch_state)
+    return;
+
+  touch_state->coords.x = x;
+  touch_state->coords.y = y;
+
+  clutter_seat_evdev_notify_touch_event (virtual_evdev->seat,
+                                         virtual_evdev->device,
+                                         CLUTTER_TOUCH_BEGIN,
+                                         time_us,
+                                         touch_state->seat_slot,
+                                         touch_state->coords.x,
+                                         touch_state->coords.y);
+}
+
+static void
+clutter_virtual_input_device_evdev_notify_touch_motion (ClutterVirtualInputDevice *virtual_device,
+                                                        uint64_t                   time_us,
+                                                        int                        device_slot,
+                                                        double                     x,
+                                                        double                     y)
+{
+  ClutterVirtualInputDeviceEvdev *virtual_evdev =
+    CLUTTER_VIRTUAL_INPUT_DEVICE_EVDEV (virtual_device);
+  ClutterInputDeviceEvdev *device_evdev =
+    CLUTTER_INPUT_DEVICE_EVDEV (virtual_evdev->device);
+  ClutterTouchState *touch_state;
+
+  if (time_us == CLUTTER_CURRENT_TIME)
+    time_us = g_get_monotonic_time ();
+
+  touch_state = clutter_input_device_evdev_lookup_touch_state (device_evdev,
+                                                               device_slot);
+  if (!touch_state)
+    return;
+
+  touch_state->coords.x = x;
+  touch_state->coords.y = y;
+
+  clutter_seat_evdev_notify_touch_event (virtual_evdev->seat,
+                                         virtual_evdev->device,
+                                         CLUTTER_TOUCH_BEGIN,
+                                         time_us,
+                                         touch_state->seat_slot,
+                                         touch_state->coords.x,
+                                         touch_state->coords.y);
+}
+
+static void
+clutter_virtual_input_device_evdev_notify_touch_up (ClutterVirtualInputDevice *virtual_device,
+                                                    uint64_t                   time_us,
+                                                    int                        device_slot)
+{
+  ClutterVirtualInputDeviceEvdev *virtual_evdev =
+    CLUTTER_VIRTUAL_INPUT_DEVICE_EVDEV (virtual_device);
+  ClutterInputDeviceEvdev *device_evdev =
+    CLUTTER_INPUT_DEVICE_EVDEV (virtual_evdev->device);
+  ClutterTouchState *touch_state;
+
+  if (time_us == CLUTTER_CURRENT_TIME)
+    time_us = g_get_monotonic_time ();
+
+  touch_state = clutter_input_device_evdev_lookup_touch_state (device_evdev,
+                                                               device_slot);
+  if (!touch_state)
+    return;
+
+  clutter_seat_evdev_notify_touch_event (virtual_evdev->seat,
+                                         virtual_evdev->device,
+                                         CLUTTER_TOUCH_BEGIN,
+                                         time_us,
+                                         touch_state->seat_slot,
+                                         touch_state->coords.x,
+                                         touch_state->coords.y);
+
+  clutter_input_device_evdev_release_touch_state (device_evdev, touch_state);
+}
+
+static void
 clutter_virtual_input_device_evdev_get_property (GObject    *object,
                                                  guint       prop_id,
                                                  GValue     *value,
@@ -552,6 +670,10 @@ clutter_virtual_input_device_evdev_class_init (ClutterVirtualInputDeviceEvdevCla
   virtual_input_device_class->notify_key = clutter_virtual_input_device_evdev_notify_key;
   virtual_input_device_class->notify_keyval = clutter_virtual_input_device_evdev_notify_keyval;
   virtual_input_device_class->notify_discrete_scroll = clutter_virtual_input_device_evdev_notify_discrete_scroll;
+  virtual_input_device_class->notify_scroll_continuous = clutter_virtual_input_device_evdev_notify_scroll_continuous;
+  virtual_input_device_class->notify_touch_down = clutter_virtual_input_device_evdev_notify_touch_down;
+  virtual_input_device_class->notify_touch_motion = clutter_virtual_input_device_evdev_notify_touch_motion;
+  virtual_input_device_class->notify_touch_up = clutter_virtual_input_device_evdev_notify_touch_up;
 
   obj_props[PROP_SEAT] = g_param_spec_pointer ("seat",
                                                P_("ClutterSeatEvdev"),
diff --git a/clutter/clutter/x11/clutter-virtual-input-device-x11.c b/clutter/clutter/x11/clutter-virtual-input-device-x11.c
index 704de5d59..17a1b99c4 100644
--- a/clutter/clutter/x11/clutter-virtual-input-device-x11.c
+++ b/clutter/clutter/x11/clutter-virtual-input-device-x11.c
@@ -69,6 +69,48 @@ clutter_virtual_input_device_x11_notify_button (ClutterVirtualInputDevice *virtu
 }
 
 static void
+clutter_virtual_input_device_x11_notify_discrete_scroll (ClutterVirtualInputDevice *virtual_device,
+                                                         uint64_t                   time_us,
+                                                         ClutterScrollDirection     direction,
+                                                         ClutterScrollSource        scroll_source)
+{
+  Display *xdisplay = clutter_x11_get_default_display ();
+  int button;
+
+  switch (direction)
+    {
+    case CLUTTER_SCROLL_UP:
+      button = 4;
+      break;
+    case CLUTTER_SCROLL_DOWN:
+      button = 5;
+      break;
+    case CLUTTER_SCROLL_LEFT:
+      button = 6;
+      break;
+    case CLUTTER_SCROLL_RIGHT:
+      button = 7;
+      break;
+    default:
+      g_warn_if_reached ();
+      return;
+    }
+
+  XTestFakeButtonEvent (xdisplay, button, True, 0);
+  XTestFakeButtonEvent (xdisplay, button, False, 0);
+}
+
+static void
+clutter_virtual_input_device_x11_notify_scroll_continuous (ClutterVirtualInputDevice *virtual_device,
+                                                           uint64_t                   time_us,
+                                                           double                     dx,
+                                                           double                     dy,
+                                                           ClutterScrollSource        scroll_source,
+                                                           ClutterScrollFinishFlags   finish_flags)
+{
+}
+
+static void
 clutter_virtual_input_device_x11_notify_key (ClutterVirtualInputDevice *virtual_device,
                                              uint64_t                   time_us,
                                              uint32_t                   key,
@@ -92,6 +134,34 @@ clutter_virtual_input_device_x11_notify_keyval (ClutterVirtualInputDevice *virtu
 }
 
 static void
+clutter_virtual_input_device_x11_notify_touch_down (ClutterVirtualInputDevice *virtual_device,
+                                                    uint64_t                   time_us,
+                                                    int                        device_slot,
+                                                    double                     x,
+                                                    double                     y)
+{
+  g_warning ("Virtual touch motion not implemented under X11");
+}
+
+static void
+clutter_virtual_input_device_x11_notify_touch_motion (ClutterVirtualInputDevice *virtual_device,
+                                                      uint64_t                   time_us,
+                                                      int                        device_slot,
+                                                      double                     x,
+                                                      double                     y)
+{
+  g_warning ("Virtual touch motion not implemented under X11");
+}
+
+static void
+clutter_virtual_input_device_x11_notify_touch_up (ClutterVirtualInputDevice *virtual_device,
+                                                  uint64_t                   time_us,
+                                                  int                        device_slot)
+{
+  g_warning ("Virtual touch motion not implemented under X11");
+}
+
+static void
 clutter_virtual_input_device_x11_init (ClutterVirtualInputDeviceX11 *virtual_device_x11)
 {
 }
@@ -105,6 +175,11 @@ clutter_virtual_input_device_x11_class_init (ClutterVirtualInputDeviceX11Class *
   virtual_input_device_class->notify_relative_motion = clutter_virtual_input_device_x11_notify_relative_motion;
   virtual_input_device_class->notify_absolute_motion = clutter_virtual_input_device_x11_notify_absolute_motion;
   virtual_input_device_class->notify_button = clutter_virtual_input_device_x11_notify_button;
+  virtual_input_device_class->notify_discrete_scroll = clutter_virtual_input_device_x11_notify_discrete_scroll;
+  virtual_input_device_class->notify_scroll_continuous = clutter_virtual_input_device_x11_notify_scroll_continuous;
   virtual_input_device_class->notify_key = clutter_virtual_input_device_x11_notify_key;
   virtual_input_device_class->notify_keyval = clutter_virtual_input_device_x11_notify_keyval;
+  virtual_input_device_class->notify_touch_down = clutter_virtual_input_device_x11_notify_touch_down;
+  virtual_input_device_class->notify_touch_motion = clutter_virtual_input_device_x11_notify_touch_motion;
+  virtual_input_device_class->notify_touch_up = clutter_virtual_input_device_x11_notify_touch_up;
 }