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#ifdef HAVE_ELPUT
#include <e.h>
#include <Eina.h>
#include <grp.h>
#include <sys/types.h>
#include <pwd.h>
#include <Elput.h>
static Eina_Hash *active_gestures;
static Elput_Manager *manager;
typedef struct {
Eina_Vector2 pos;
unsigned int fingers;
struct {
Evas_Object *visuals, *win;
} visuals;
} Swipe_Stats;
static int gesture_capable_devices = 0;
static E_Bindings_Swipe_Live_Update live_update;
static void* live_update_data;
static Swipe_Stats*
_find_swipe_gesture_recognizition(Elput_Device *dev)
{
Swipe_Stats *stats = eina_hash_find(active_gestures, dev);
return stats;
}
static Swipe_Stats*
_start_swipe_gesture_recognizition(Elput_Device *dev)
{
Swipe_Stats *stats = _find_swipe_gesture_recognizition(dev);
if (stats)
eina_hash_del_by_key(active_gestures, dev);
stats = calloc(1, sizeof(Swipe_Stats));
EINA_SAFETY_ON_NULL_RETURN_VAL(stats, NULL);
if (e_bindings_swipe_available())
{
E_Zone *zone = e_zone_current_get();
stats->visuals.win = elm_notify_add(zone->base);
elm_notify_align_set(stats->visuals.win, 0.5, 0.5);
elm_object_tree_focus_allow_set(stats->visuals.win, EINA_FALSE);
evas_object_layer_set(stats->visuals.win, E_LAYER_CLIENT_PRIO);
evas_object_show(stats->visuals.win);
stats->visuals.visuals = elm_progressbar_add(stats->visuals.win);
elm_object_text_set(stats->visuals.visuals, "Progress of visuals");
evas_object_size_hint_min_set(stats->visuals.visuals, 300, 50);
evas_object_show(stats->visuals.visuals);
elm_object_content_set(stats->visuals.win, stats->visuals.visuals);
}
eina_hash_add(active_gestures, dev, stats);
return stats;
}
static void
_end_swipe_gesture_recognizition(Elput_Device *dev)
{
eina_hash_del_by_key(active_gestures, dev);
}
static double
_config_angle(Eina_Vector2 pos)
{
double res = atan(pos.y/pos.x);
if (res < 0) res += M_PI;
if (pos.y < 0) res += M_PI;
return res;
}
static void
_stats_free(void *ptr)
{
Swipe_Stats *stats = ptr;
evas_object_del(stats->visuals.win);
free(stats);
}
static void
_apply_visual_changes(Swipe_Stats *stats)
{
if (live_update)
{
live_update(live_update_data, EINA_FALSE, _config_angle(stats->pos), eina_vector2_length_get(&stats->pos), 0.8, stats->fingers);
}
else if (stats->visuals.win)
{
Eina_Inarray *res = e_bindings_swipe_find_candidates(E_BINDING_CONTEXT_NONE, _config_angle (stats->pos), eina_vector2_length_get(&stats->pos), stats->fingers);
E_Binding_Swipe_Candidate *itr;
double total = 0.0f;
unsigned int len = 0;
EINA_INARRAY_FOREACH(res, itr)
{
total += itr->acceptance;
len ++;
}
if (len > 0)
{
char text_buffer[1000];
snprintf(text_buffer, sizeof(text_buffer), "%d gestures possible", len);
elm_progressbar_value_set(stats->visuals.visuals, total/len);
elm_object_text_set(stats->visuals.visuals, text_buffer);
}
else
{
elm_progressbar_value_set(stats->visuals.visuals, 0.0f);
elm_object_text_set(stats->visuals.visuals, "No gesture found");
}
eina_inarray_free(res);
}
}
static Eina_Bool
_swipe_cb(void *data EINA_UNUSED, int type, void *event)
{
Elput_Swipe_Gesture *gesture = event;
Elput_Device *dev = elput_swipe_device_get(gesture);
if (type == ELPUT_EVENT_SWIPE_BEGIN)
{
Swipe_Stats *stats = _start_swipe_gesture_recognizition(dev);
stats->fingers = elput_swipe_finger_count_get(gesture);
stats->pos.x = stats->pos.y = 0;
}
else if (type == ELPUT_EVENT_SWIPE_UPDATE)
{
Swipe_Stats *stats = _find_swipe_gesture_recognizition(dev);
stats->pos.x += elput_swipe_dx_get(gesture);
stats->pos.y += elput_swipe_dy_get(gesture);
_apply_visual_changes(stats);
}
else if (type == ELPUT_EVENT_SWIPE_END)
{
Swipe_Stats *stats = _find_swipe_gesture_recognizition(dev);
if (live_update)
live_update(live_update_data, EINA_TRUE, _config_angle(stats->pos), eina_vector2_length_get(&stats->pos), 0.8, stats->fingers);
else
e_bindings_swipe_handle(E_BINDING_CONTEXT_NONE, NULL, _config_angle(stats->pos), eina_vector2_length_get(&stats->pos), stats->fingers);
_end_swipe_gesture_recognizition(dev);
}
return ECORE_CALLBACK_PASS_ON;
}
static Eina_Bool
_debug(void *data EINA_UNUSED, int type EINA_UNUSED, void *event EINA_UNUSED)
{
Elput_Event_Seat_Caps *caps = event;
const Eina_List *node, *devices = elput_seat_devices_get(caps->seat);
Elput_Device *device;
int number_of_gesture_devices = 0;
EINA_LIST_FOREACH(devices, node, device)
{
if (elput_device_caps_get(device) & ELPUT_DEVICE_CAPS_GESTURE)
{
number_of_gesture_devices++;
}
}
gesture_capable_devices= number_of_gesture_devices;
return ECORE_CALLBACK_PASS_ON;
}
static void
_init_for_x11(void)
{
const char *device = NULL;
if (!elput_init())
{
ERR("Failed to init elput");
return;
}
device = getenv("XDG_SEAT");
if (!device) device = "seat0";
manager = elput_manager_connect_gestures(device, 0);
EINA_SAFETY_ON_NULL_RETURN(manager);
elput_input_init(manager);
}
static void
_shutdown_for_x11(void)
{
elput_manager_disconnect(manager);
manager = NULL;
elput_shutdown();
}
E_API int
e_gesture_init(void)
{
if (e_comp->comp_type == E_PIXMAP_TYPE_X)
{
_init_for_x11();
}
active_gestures = eina_hash_pointer_new(_stats_free);
ecore_event_handler_add(ELPUT_EVENT_SWIPE_BEGIN, _swipe_cb, NULL);
ecore_event_handler_add(ELPUT_EVENT_SWIPE_UPDATE, _swipe_cb, NULL);
ecore_event_handler_add(ELPUT_EVENT_SWIPE_END, _swipe_cb, NULL);
ecore_event_handler_add(ELPUT_EVENT_SEAT_CAPS, _debug, NULL);
return 1;
}
E_API int
e_gesture_shutdown(void)
{
if (e_comp->comp_type == E_PIXMAP_TYPE_X)
{
_shutdown_for_x11();
}
return 1;
}
E_API void
e_bindings_swipe_live_update_hook_set(E_Bindings_Swipe_Live_Update update, void *data)
{
live_update = update;
live_update_data = data;
}
E_API int
e_bindings_gesture_capable_devices_get(void)
{
return gesture_capable_devices;
}
#endif