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evdev: Manage LIBINPUT_EVENT_TOUCH_* events
Those are translated into CLUTTER_TOUCH_* ClutterEvents. As the "NULL" ClutterEventSequence is special cased, the slot=0 value is avoided. Frame events are ignored, as there is no Clutter equivalence, and Cancel events are sent to all current individual touches. https://bugzilla.gnome.org/show_bug.cgi?id=728968
This commit is contained in:
Carlos Garnacho
parent
76d48f79d6
commit
50b3d7cd9b
@ -62,8 +62,15 @@
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#define INITIAL_POINTER_X 16
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#define INITIAL_POINTER_Y 16
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typedef struct _ClutterTouchState ClutterTouchState;
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typedef struct _ClutterEventFilter ClutterEventFilter;
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struct _ClutterTouchState
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{
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guint32 id;
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ClutterPoint coords;
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};
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struct _ClutterSeatEvdev
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{
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struct libinput_seat *libinput_seat;
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@ -74,6 +81,8 @@ struct _ClutterSeatEvdev
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ClutterInputDevice *core_pointer;
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ClutterInputDevice *core_keyboard;
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GHashTable *touches;
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struct xkb_state *xkb;
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xkb_led_index_t caps_lock_led;
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xkb_led_index_t num_lock_led;
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@ -542,6 +551,51 @@ notify_button (ClutterInputDevice *input_device,
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clutter_event_set_device (event, seat->core_pointer);
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clutter_event_set_source_device (event, input_device);
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_clutter_input_device_set_stage (seat->core_pointer, stage);
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queue_event (event);
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}
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static void
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notify_touch_event (ClutterInputDevice *input_device,
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ClutterEventType evtype,
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guint32 time_,
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gint32 slot,
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gdouble x,
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gdouble y)
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{
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ClutterInputDeviceEvdev *device_evdev;
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ClutterSeatEvdev *seat;
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ClutterStage *stage;
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ClutterEvent *event = NULL;
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/* We can drop the event on the floor if no stage has been
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* associated with the device yet. */
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stage = _clutter_input_device_get_stage (input_device);
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if (!stage)
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return;
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device_evdev = CLUTTER_INPUT_DEVICE_EVDEV (input_device);
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seat = _clutter_input_device_evdev_get_seat (device_evdev);
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event = clutter_event_new (evtype);
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event->touch.time = time_;
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event->touch.stage = CLUTTER_STAGE (stage);
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event->touch.device = seat->core_pointer;
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event->touch.x = x;
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event->touch.y = y;
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/* "NULL" sequences are special cased in clutter */
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event->touch.sequence = GINT_TO_POINTER (slot + 1);
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_clutter_xkb_translate_state (event, seat->xkb, seat->button_state);
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if (evtype == CLUTTER_TOUCH_BEGIN ||
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evtype == CLUTTER_TOUCH_UPDATE)
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event->touch.modifier_state |= CLUTTER_BUTTON1_MASK;
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clutter_event_set_device (event, seat->core_pointer);
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clutter_event_set_source_device (event, input_device);
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queue_event (event);
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}
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@ -654,6 +708,12 @@ clutter_event_source_free (ClutterEventSource *source)
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g_source_unref (g_source);
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}
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static void
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clutter_touch_state_free (ClutterTouchState *touch_state)
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{
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g_slice_free (ClutterTouchState, touch_state);
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}
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static void
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clutter_seat_evdev_set_libinput_seat (ClutterSeatEvdev *seat,
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struct libinput_seat *libinput_seat)
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@ -693,6 +753,9 @@ clutter_seat_evdev_new (ClutterDeviceManagerEvdev *manager_evdev)
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_clutter_device_manager_add_device (manager, device);
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seat->core_keyboard = device;
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seat->touches = g_hash_table_new_full (NULL, NULL, NULL,
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(GDestroyNotify) clutter_touch_state_free);
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ctx = xkb_context_new(0);
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g_assert (ctx);
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@ -738,6 +801,7 @@ clutter_seat_evdev_free (ClutterSeatEvdev *seat)
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g_object_unref (device);
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}
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g_slist_free (seat->devices);
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g_hash_table_unref (seat->touches);
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xkb_state_unref (seat->xkb);
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@ -986,6 +1050,45 @@ process_base_event (ClutterDeviceManagerEvdev *manager_evdev,
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return handled;
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}
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static ClutterTouchState *
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_device_seat_add_touch (ClutterInputDevice *input_device,
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guint32 id)
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{
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ClutterInputDeviceEvdev *device_evdev =
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CLUTTER_INPUT_DEVICE_EVDEV (input_device);
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ClutterSeatEvdev *seat = _clutter_input_device_evdev_get_seat (device_evdev);
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ClutterTouchState *touch;
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touch = g_slice_new0 (ClutterTouchState);
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touch->id = id;
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g_hash_table_insert (seat->touches, GUINT_TO_POINTER (id), touch);
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return touch;
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}
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static void
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_device_seat_remove_touch (ClutterInputDevice *input_device,
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guint32 id)
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{
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ClutterInputDeviceEvdev *device_evdev =
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CLUTTER_INPUT_DEVICE_EVDEV (input_device);
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ClutterSeatEvdev *seat = _clutter_input_device_evdev_get_seat (device_evdev);
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g_hash_table_remove (seat->touches, GUINT_TO_POINTER (id));
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}
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static ClutterTouchState *
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_device_seat_get_touch (ClutterInputDevice *input_device,
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guint32 id)
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{
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ClutterInputDeviceEvdev *device_evdev =
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CLUTTER_INPUT_DEVICE_EVDEV (input_device);
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ClutterSeatEvdev *seat = _clutter_input_device_evdev_get_seat (device_evdev);
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return g_hash_table_lookup (seat->touches, GUINT_TO_POINTER (id));
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}
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static gboolean
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process_device_event (ClutterDeviceManagerEvdev *manager_evdev,
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struct libinput_event *event)
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@ -1107,6 +1210,119 @@ process_device_event (ClutterDeviceManagerEvdev *manager_evdev,
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}
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case LIBINPUT_EVENT_TOUCH_DOWN:
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{
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gint32 slot;
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guint32 time;
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li_fixed_t x, y;
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gfloat stage_width, stage_height;
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ClutterStage *stage;
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ClutterTouchState *touch_state;
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struct libinput_event_touch *touch_event =
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libinput_event_get_touch_event (event);
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device = libinput_device_get_user_data (libinput_device);
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stage = _clutter_input_device_get_stage (device);
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if (!stage)
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break;
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stage_width = clutter_actor_get_width (CLUTTER_ACTOR (stage));
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stage_height = clutter_actor_get_height (CLUTTER_ACTOR (stage));
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slot = libinput_event_touch_get_slot (touch_event);
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time = libinput_event_touch_get_time (touch_event);
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x = libinput_event_touch_get_x_transformed (touch_event,
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stage_width);
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y = libinput_event_touch_get_y_transformed (touch_event,
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stage_height);
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touch_state = _device_seat_add_touch (device, slot);
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touch_state->coords.x = li_fixed_to_double (x);
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touch_state->coords.y = li_fixed_to_double (y);
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notify_touch_event (device, CLUTTER_TOUCH_BEGIN, time, slot,
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touch_state->coords.x, touch_state->coords.y);
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break;
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}
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case LIBINPUT_EVENT_TOUCH_UP:
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{
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gint32 slot;
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guint32 time;
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ClutterTouchState *touch_state;
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struct libinput_event_touch *touch_event =
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libinput_event_get_touch_event (event);
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device = libinput_device_get_user_data (libinput_device);
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slot = libinput_event_touch_get_slot (touch_event);
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time = libinput_event_touch_get_time (touch_event);
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touch_state = _device_seat_get_touch (device, slot);
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notify_touch_event (device, CLUTTER_TOUCH_END, time, slot,
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touch_state->coords.x, touch_state->coords.y);
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_device_seat_remove_touch (device, slot);
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break;
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}
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case LIBINPUT_EVENT_TOUCH_MOTION:
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{
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gint32 slot;
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guint32 time;
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li_fixed_t x, y;
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gfloat stage_width, stage_height;
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ClutterStage *stage;
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ClutterTouchState *touch_state;
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struct libinput_event_touch *touch_event =
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libinput_event_get_touch_event (event);
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device = libinput_device_get_user_data (libinput_device);
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stage = _clutter_input_device_get_stage (device);
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if (!stage)
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break;
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stage_width = clutter_actor_get_width (CLUTTER_ACTOR (stage));
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stage_height = clutter_actor_get_height (CLUTTER_ACTOR (stage));
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slot = libinput_event_touch_get_slot (touch_event);
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time = libinput_event_touch_get_time (touch_event);
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x = libinput_event_touch_get_x_transformed (touch_event,
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stage_width);
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y = libinput_event_touch_get_y_transformed (touch_event,
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stage_height);
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touch_state = _device_seat_get_touch (device, slot);
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touch_state->coords.x = li_fixed_to_double (x);
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touch_state->coords.y = li_fixed_to_double (y);
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notify_touch_event (device, CLUTTER_TOUCH_UPDATE, time, slot,
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touch_state->coords.x, touch_state->coords.y);
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break;
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}
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case LIBINPUT_EVENT_TOUCH_CANCEL:
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{
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ClutterTouchState *touch_state;
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GHashTableIter iter;
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guint32 time;
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struct libinput_event_touch *touch_event =
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libinput_event_get_touch_event (event);
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ClutterSeatEvdev *seat;
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device = libinput_device_get_user_data (libinput_device);
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time = libinput_event_touch_get_time (touch_event);
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seat = _clutter_input_device_evdev_get_seat (CLUTTER_INPUT_DEVICE_EVDEV (device));
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g_hash_table_iter_init (&iter, seat->touches);
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while (g_hash_table_iter_next (&iter, NULL, (gpointer*) &touch_state))
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{
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notify_touch_event (device, CLUTTER_TOUCH_CANCEL,
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time, touch_state->id,
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touch_state->coords.x, touch_state->coords.y);
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g_hash_table_iter_remove (&iter);
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}
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break;
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}
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default:
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handled = FALSE;
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}
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