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evdev: Manage LIBINPUT_EVENT_TOUCH_* events

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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 2014-04-25 20:07:53 +02:00
parent 76d48f79d6
commit 50b3d7cd9b
1 changed files with 216 additions and 0 deletions
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216
clutter/evdev/clutter-device-manager-evdev.c
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@ -62,8 +62,15 @@
#define INITIAL_POINTER_X 16 #define INITIAL_POINTER_X 16
#define INITIAL_POINTER_Y 16 #define INITIAL_POINTER_Y 16
typedef struct _ClutterTouchState ClutterTouchState;
typedef struct _ClutterEventFilter ClutterEventFilter; typedef struct _ClutterEventFilter ClutterEventFilter;
struct _ClutterTouchState
{
guint32 id;
ClutterPoint coords;
};
struct _ClutterSeatEvdev struct _ClutterSeatEvdev
{ {
struct libinput_seat *libinput_seat; struct libinput_seat *libinput_seat;
@ -74,6 +81,8 @@ struct _ClutterSeatEvdev
ClutterInputDevice *core_pointer; ClutterInputDevice *core_pointer;
ClutterInputDevice *core_keyboard; ClutterInputDevice *core_keyboard;
GHashTable *touches;
struct xkb_state *xkb; struct xkb_state *xkb;
xkb_led_index_t caps_lock_led; xkb_led_index_t caps_lock_led;
xkb_led_index_t num_lock_led; xkb_led_index_t num_lock_led;
@ -542,6 +551,51 @@ notify_button (ClutterInputDevice *input_device,
clutter_event_set_device (event, seat->core_pointer); clutter_event_set_device (event, seat->core_pointer);
clutter_event_set_source_device (event, input_device); clutter_event_set_source_device (event, input_device);
_clutter_input_device_set_stage (seat->core_pointer, stage);
queue_event (event);
}
static void
notify_touch_event (ClutterInputDevice *input_device,
ClutterEventType evtype,
guint32 time_,
gint32 slot,
gdouble x,
gdouble y)
{
ClutterInputDeviceEvdev *device_evdev;
ClutterSeatEvdev *seat;
ClutterStage *stage;
ClutterEvent *event = NULL;
/* We can drop the event on the floor if no stage has been
* associated with the device yet. */
stage = _clutter_input_device_get_stage (input_device);
if (!stage)
return;
device_evdev = CLUTTER_INPUT_DEVICE_EVDEV (input_device);
seat = _clutter_input_device_evdev_get_seat (device_evdev);
event = clutter_event_new (evtype);
event->touch.time = time_;
event->touch.stage = CLUTTER_STAGE (stage);
event->touch.device = seat->core_pointer;
event->touch.x = x;
event->touch.y = y;
/* "NULL" sequences are special cased in clutter */
event->touch.sequence = GINT_TO_POINTER (slot + 1);
_clutter_xkb_translate_state (event, seat->xkb, seat->button_state);
if (evtype == CLUTTER_TOUCH_BEGIN ||
evtype == CLUTTER_TOUCH_UPDATE)
event->touch.modifier_state |= CLUTTER_BUTTON1_MASK;
clutter_event_set_device (event, seat->core_pointer);
clutter_event_set_source_device (event, input_device);
queue_event (event); queue_event (event);
} }
@ -654,6 +708,12 @@ clutter_event_source_free (ClutterEventSource *source)
g_source_unref (g_source); g_source_unref (g_source);
} }
static void
clutter_touch_state_free (ClutterTouchState *touch_state)
{
g_slice_free (ClutterTouchState, touch_state);
}
static void static void
clutter_seat_evdev_set_libinput_seat (ClutterSeatEvdev *seat, clutter_seat_evdev_set_libinput_seat (ClutterSeatEvdev *seat,
struct libinput_seat *libinput_seat) struct libinput_seat *libinput_seat)
@ -693,6 +753,9 @@ clutter_seat_evdev_new (ClutterDeviceManagerEvdev *manager_evdev)
_clutter_device_manager_add_device (manager, device); _clutter_device_manager_add_device (manager, device);
seat->core_keyboard = device; seat->core_keyboard = device;
seat->touches = g_hash_table_new_full (NULL, NULL, NULL,
(GDestroyNotify) clutter_touch_state_free);
ctx = xkb_context_new(0); ctx = xkb_context_new(0);
g_assert (ctx); g_assert (ctx);
@ -738,6 +801,7 @@ clutter_seat_evdev_free (ClutterSeatEvdev *seat)
g_object_unref (device); g_object_unref (device);
} }
g_slist_free (seat->devices); g_slist_free (seat->devices);
g_hash_table_unref (seat->touches);
xkb_state_unref (seat->xkb); xkb_state_unref (seat->xkb);
@ -986,6 +1050,45 @@ process_base_event (ClutterDeviceManagerEvdev *manager_evdev,
return handled; return handled;
} }
static ClutterTouchState *
_device_seat_add_touch (ClutterInputDevice *input_device,
guint32 id)
{
ClutterInputDeviceEvdev *device_evdev =
CLUTTER_INPUT_DEVICE_EVDEV (input_device);
ClutterSeatEvdev *seat = _clutter_input_device_evdev_get_seat (device_evdev);
ClutterTouchState *touch;
touch = g_slice_new0 (ClutterTouchState);
touch->id = id;
g_hash_table_insert (seat->touches, GUINT_TO_POINTER (id), touch);
return touch;
}
static void
_device_seat_remove_touch (ClutterInputDevice *input_device,
guint32 id)
{
ClutterInputDeviceEvdev *device_evdev =
CLUTTER_INPUT_DEVICE_EVDEV (input_device);
ClutterSeatEvdev *seat = _clutter_input_device_evdev_get_seat (device_evdev);
g_hash_table_remove (seat->touches, GUINT_TO_POINTER (id));
}
static ClutterTouchState *
_device_seat_get_touch (ClutterInputDevice *input_device,
guint32 id)
{
ClutterInputDeviceEvdev *device_evdev =
CLUTTER_INPUT_DEVICE_EVDEV (input_device);
ClutterSeatEvdev *seat = _clutter_input_device_evdev_get_seat (device_evdev);
return g_hash_table_lookup (seat->touches, GUINT_TO_POINTER (id));
}
static gboolean static gboolean
process_device_event (ClutterDeviceManagerEvdev *manager_evdev, process_device_event (ClutterDeviceManagerEvdev *manager_evdev,
struct libinput_event *event) struct libinput_event *event)
@ -1107,6 +1210,119 @@ process_device_event (ClutterDeviceManagerEvdev *manager_evdev,
} }
case LIBINPUT_EVENT_TOUCH_DOWN:
{
gint32 slot;
guint32 time;
li_fixed_t x, y;
gfloat stage_width, stage_height;
ClutterStage *stage;
ClutterTouchState *touch_state;
struct libinput_event_touch *touch_event =
libinput_event_get_touch_event (event);
device = libinput_device_get_user_data (libinput_device);
stage = _clutter_input_device_get_stage (device);
if (!stage)
break;
stage_width = clutter_actor_get_width (CLUTTER_ACTOR (stage));
stage_height = clutter_actor_get_height (CLUTTER_ACTOR (stage));
slot = libinput_event_touch_get_slot (touch_event);
time = libinput_event_touch_get_time (touch_event);
x = libinput_event_touch_get_x_transformed (touch_event,
stage_width);
y = libinput_event_touch_get_y_transformed (touch_event,
stage_height);
touch_state = _device_seat_add_touch (device, slot);
touch_state->coords.x = li_fixed_to_double (x);
touch_state->coords.y = li_fixed_to_double (y);
notify_touch_event (device, CLUTTER_TOUCH_BEGIN, time, slot,
touch_state->coords.x, touch_state->coords.y);
break;
}
case LIBINPUT_EVENT_TOUCH_UP:
{
gint32 slot;
guint32 time;
ClutterTouchState *touch_state;
struct libinput_event_touch *touch_event =
libinput_event_get_touch_event (event);
device = libinput_device_get_user_data (libinput_device);
slot = libinput_event_touch_get_slot (touch_event);
time = libinput_event_touch_get_time (touch_event);
touch_state = _device_seat_get_touch (device, slot);
notify_touch_event (device, CLUTTER_TOUCH_END, time, slot,
touch_state->coords.x, touch_state->coords.y);
_device_seat_remove_touch (device, slot);
break;
}
case LIBINPUT_EVENT_TOUCH_MOTION:
{
gint32 slot;
guint32 time;
li_fixed_t x, y;
gfloat stage_width, stage_height;
ClutterStage *stage;
ClutterTouchState *touch_state;
struct libinput_event_touch *touch_event =
libinput_event_get_touch_event (event);
device = libinput_device_get_user_data (libinput_device);
stage = _clutter_input_device_get_stage (device);
if (!stage)
break;
stage_width = clutter_actor_get_width (CLUTTER_ACTOR (stage));
stage_height = clutter_actor_get_height (CLUTTER_ACTOR (stage));
slot = libinput_event_touch_get_slot (touch_event);
time = libinput_event_touch_get_time (touch_event);
x = libinput_event_touch_get_x_transformed (touch_event,
stage_width);
y = libinput_event_touch_get_y_transformed (touch_event,
stage_height);
touch_state = _device_seat_get_touch (device, slot);
touch_state->coords.x = li_fixed_to_double (x);
touch_state->coords.y = li_fixed_to_double (y);
notify_touch_event (device, CLUTTER_TOUCH_UPDATE, time, slot,
touch_state->coords.x, touch_state->coords.y);
break;
}
case LIBINPUT_EVENT_TOUCH_CANCEL:
{
ClutterTouchState *touch_state;
GHashTableIter iter;
guint32 time;
struct libinput_event_touch *touch_event =
libinput_event_get_touch_event (event);
ClutterSeatEvdev *seat;
device = libinput_device_get_user_data (libinput_device);
time = libinput_event_touch_get_time (touch_event);
seat = _clutter_input_device_evdev_get_seat (CLUTTER_INPUT_DEVICE_EVDEV (device));
g_hash_table_iter_init (&iter, seat->touches);
while (g_hash_table_iter_next (&iter, NULL, (gpointer*) &touch_state))
{
notify_touch_event (device, CLUTTER_TOUCH_CANCEL,
time, touch_state->id,
touch_state->coords.x, touch_state->coords.y);
g_hash_table_iter_remove (&iter);
}
break;
}
default: default:
handled = FALSE; handled = FALSE;
} }