#include <Ecore.h>
#include <Ecore_Input.h>
-#include <Ecore_X.h>
-static GestureCB _global_cb;
-static void *_global_data;
-
-struct _Gestures_Config
-{
- // minimal required length of flick gesture (in pixels)
- int one_finger_flick_min_length;
- // maximal time of gesture
- int one_finger_flick_max_time;
- // timeout period to activate hover gesture (first longpress timeout)
- double one_finger_hover_longpress_timeout;
- // tap timeout - maximal ammount of time allowed between seqiential taps
- double two_fingers_hover_longpress_timeout;
- // tap timeout - maximal ammount of time allowed between seqiential taps
- double one_finger_tap_timeout;
- // tap radius(in pixels)
- int one_finger_tap_radius;
-};
-typedef struct _Gestures_Config Gestures_Config;
-
-typedef enum
-{
- FLICK_DIRECTION_UNDEFINED,
- FLICK_DIRECTION_DOWN,
- FLICK_DIRECTION_UP,
- FLICK_DIRECTION_LEFT,
- FLICK_DIRECTION_RIGHT,
- FLICK_DIRECTION_DOWN_RETURN,
- FLICK_DIRECTION_UP_RETURN,
- FLICK_DIRECTION_LEFT_RETURN,
- FLICK_DIRECTION_RIGHT_RETURN,
-} flick_direction_e;
-
-typedef enum
-{
- GESTURE_NOT_STARTED = 0, // Gesture is ready to start
- GESTURE_ONGOING, // Gesture in progress.
- GESTURE_FINISHED, // Gesture finished - should be emited
- GESTURE_ABORTED // Gesture aborted
-} gesture_state_e;
-
-typedef enum
-{
- ONE_FINGER_GESTURE = 1,
- TWO_FINGERS_GESTURE,
- THREE_FINGERS_GESTURE
-} gesture_type_e;
-
-struct _Cover
-{
- Ecore_X_Window win; /**< Input window covering given zone */
- unsigned int n_taps; /**< Number of fingers touching screen */
- unsigned int event_time;
-
- struct
- {
- gesture_state_e state; // current state of gesture
- unsigned int timestamp[3]; // time of gesture;
- int finger[3]; // finger number which initiates gesture
- int x_org[3], y_org[3]; // coorinates of finger down event
- int x_end[3], y_end[3]; // coorinates of finger up event
- flick_direction_e dir; // direction of flick
- int n_fingers; // number of fingers in gesture
- int n_fingers_left; // number of fingers in gesture
- // still touching screen
- Eina_Bool finger_out[3]; // finger is out of the finger boundary
- Eina_Bool return_flick[3];
- } flick_gesture;
-
- struct
- {
- gesture_state_e state; // currest gesture state
- int x[2], y[2];
- int n_fingers;
- int finger[2];
- unsigned int timestamp; // time of gesture;
- unsigned int last_emission_time; // last time of gesture emission
- Ecore_Timer *timer;
- Eina_Bool longpressed;
- } hover_gesture;
-
- struct
- {
- Eina_Bool started; // indicates if taps recognition process has started
- Eina_Bool pressed; // indicates if finger is down
- int n_taps; // number of taps captures in sequence
- int finger[3]; // device id of finget
- Ecore_Timer *timer; // sequence expiration timer
- int x_org[3], y_org[3]; // coordinates of first tap
- gesture_type_e tap_type;
- } tap_gesture_data;
-};
-typedef struct _Cover Cover;
-
-Gestures_Config *_e_mod_config;
-static Ecore_X_Window scrolled_win;
-static int rx, ry;
-static Eina_List *handlers;
-static Cover *cov;
-static int win_angle;
-
-static void _hover_event_emit(Cover *cov, int state);
-
-static void _event_emit(Gesture g, int x, int y, int x_e, int y_e, int state, int event_time)
-{
- Gesture_Info *info = calloc(sizeof(Gesture_Info), 1);
- EINA_SAFETY_ON_NULL_RETURN(info);
-
- info->type = g;
- info->x_beg = x;
- info->x_end = x_e;
- info->y_beg = y;
- info->y_end = y_e;
- info->state = state;
- info->event_time = event_time;
-
- if (_global_cb)
- _global_cb(_global_data, info);
- free(info);
-}
-
-static void
-_flick_gesture_mouse_down(Ecore_Event_Mouse_Button *ev, Cover *cov)
-{
- if (cov->flick_gesture.state == GESTURE_NOT_STARTED)
- {
- cov->flick_gesture.state = GESTURE_ONGOING;
- cov->flick_gesture.finger[0] = ev->multi.device;
- cov->flick_gesture.x_org[0] = ev->root.x;
- cov->flick_gesture.y_org[0] = ev->root.y;
- cov->flick_gesture.timestamp[0] = ev->timestamp;
- cov->flick_gesture.n_fingers = 1;
- cov->flick_gesture.n_fingers_left = 1;
- cov->flick_gesture.dir = FLICK_DIRECTION_UNDEFINED;
- cov->flick_gesture.finger_out[0] = EINA_FALSE;
- cov->flick_gesture.return_flick[0] = EINA_FALSE;
- }
- else if (cov->flick_gesture.state == GESTURE_ONGOING)
- {
- // abort gesture if too many fingers touched screen
- if ((cov->n_taps > 3) || (cov->flick_gesture.n_fingers > 2))
- {
- cov->flick_gesture.state = GESTURE_ABORTED;
- return;
- }
-
- cov->flick_gesture.x_org[cov->flick_gesture.n_fingers] = ev->root.x;
- cov->flick_gesture.y_org[cov->flick_gesture.n_fingers] = ev->root.y;
- cov->flick_gesture.timestamp[cov->flick_gesture.n_fingers] = ev->timestamp;
- cov->flick_gesture.finger[cov->flick_gesture.n_fingers] = ev->multi.device;
- cov->flick_gesture.n_fingers++;
- cov->flick_gesture.n_fingers_left++;
- if (cov->flick_gesture.n_fingers < 3) /* n_fingers == 3 makes out of bounds write */
- {
- cov->flick_gesture.finger_out[cov->flick_gesture.n_fingers] = EINA_FALSE;
- cov->flick_gesture.return_flick[cov->flick_gesture.n_fingers] = EINA_FALSE;
- }
- }
-}
-
-static Eina_Bool
-_flick_gesture_time_check(unsigned int event_time, unsigned int gesture_time)
-{
- DEBUG("Flick time: %d", event_time - gesture_time);
- if ((event_time - gesture_time) < _e_mod_config->one_finger_flick_max_time * 2) //Double time because of the possible of return flick
- return EINA_TRUE;
- else
- return EINA_FALSE;
-}
-
-static Eina_Bool
-_flick_gesture_length_check(int x, int y, int x_org, int y_org)
-{
- int dx = x - x_org;
- int dy = y - y_org;
-
- if ((dx * dx + dy * dy) > (_e_mod_config->one_finger_flick_min_length *
- _e_mod_config->one_finger_flick_min_length))
- return EINA_TRUE;
- else
- return EINA_FALSE;
-}
-
-static flick_direction_e
-_flick_gesture_direction_get(int x, int y, int x_org, int y_org)
-{
- int dx = x - x_org;
- int dy = y - y_org;
- int tmp;
-
- switch(win_angle)
- {
- case 90:
- tmp = dx;
- dx = -dy;
- dy = tmp;
- break;
- case 270:
- tmp = dx;
- dx = dy;
- dy = -tmp;
- break;
- }
-
- if ((dy < 0) && (abs(dx) < -dy))
- return FLICK_DIRECTION_UP;
- if ((dy > 0) && (abs(dx) < dy))
- return FLICK_DIRECTION_DOWN;
- if ((dx > 0) && (dx > abs(dy)))
- return FLICK_DIRECTION_RIGHT;
- if ((dx < 0) && (-dx > abs(dy)))
- return FLICK_DIRECTION_LEFT;
-
- return FLICK_DIRECTION_UNDEFINED;
-}
-
-static void
-_flick_event_emit(Cover *cov)
-{
- int ax, ay, axe, aye, i, type = -1;
- ax = ay = axe = aye = 0;
-
- for (i = 0; i < cov->flick_gesture.n_fingers; i++)
- {
- ax += cov->flick_gesture.x_org[i];
- ay += cov->flick_gesture.y_org[i];
- axe += cov->flick_gesture.x_end[i];
- aye += cov->flick_gesture.y_end[i];
- }
-
- ax /= cov->flick_gesture.n_fingers;
- ay /= cov->flick_gesture.n_fingers;
- axe /= cov->flick_gesture.n_fingers;
- aye /= cov->flick_gesture.n_fingers;
-
- if (cov->flick_gesture.dir == FLICK_DIRECTION_LEFT)
- {
- if (cov->flick_gesture.n_fingers == 1)
- type = ONE_FINGER_FLICK_LEFT;
- if (cov->flick_gesture.n_fingers == 2)
- type = TWO_FINGERS_FLICK_LEFT;
- if (cov->flick_gesture.n_fingers == 3)
- type = THREE_FINGERS_FLICK_LEFT;
- }
- else if (cov->flick_gesture.dir == FLICK_DIRECTION_RIGHT)
- {
- if (cov->flick_gesture.n_fingers == 1)
- type = ONE_FINGER_FLICK_RIGHT;
- if (cov->flick_gesture.n_fingers == 2)
- type = TWO_FINGERS_FLICK_RIGHT;
- if (cov->flick_gesture.n_fingers == 3)
- type = THREE_FINGERS_FLICK_RIGHT;
- }
- else if (cov->flick_gesture.dir == FLICK_DIRECTION_UP)
- {
- if (cov->flick_gesture.n_fingers == 1)
- type = ONE_FINGER_FLICK_UP;
- if (cov->flick_gesture.n_fingers == 2)
- type = TWO_FINGERS_FLICK_UP;
- if (cov->flick_gesture.n_fingers == 3)
- type = THREE_FINGERS_FLICK_UP;
- }
- else if (cov->flick_gesture.dir == FLICK_DIRECTION_DOWN)
- {
- if (cov->flick_gesture.n_fingers == 1)
- type = ONE_FINGER_FLICK_DOWN;
- if (cov->flick_gesture.n_fingers == 2)
- type = TWO_FINGERS_FLICK_DOWN;
- if (cov->flick_gesture.n_fingers == 3)
- type = THREE_FINGERS_FLICK_DOWN;
- }
- else if (cov->flick_gesture.dir == FLICK_DIRECTION_DOWN_RETURN)
- {
- if (cov->flick_gesture.n_fingers == 1)
- type = ONE_FINGER_FLICK_DOWN_RETURN;
- if (cov->flick_gesture.n_fingers == 2)
- type = TWO_FINGERS_FLICK_DOWN_RETURN;
- if (cov->flick_gesture.n_fingers == 3)
- type = THREE_FINGERS_FLICK_DOWN_RETURN;
- }
- else if (cov->flick_gesture.dir == FLICK_DIRECTION_UP_RETURN)
- {
- if (cov->flick_gesture.n_fingers == 1)
- type = ONE_FINGER_FLICK_UP_RETURN;
- if (cov->flick_gesture.n_fingers == 2)
- type = TWO_FINGERS_FLICK_UP_RETURN;
- if (cov->flick_gesture.n_fingers == 3)
- type = THREE_FINGERS_FLICK_UP_RETURN;
- }
- else if (cov->flick_gesture.dir == FLICK_DIRECTION_LEFT_RETURN)
- {
- if (cov->flick_gesture.n_fingers == 1)
- type = ONE_FINGER_FLICK_LEFT_RETURN;
- if (cov->flick_gesture.n_fingers == 2)
- type = TWO_FINGERS_FLICK_LEFT_RETURN;
- if (cov->flick_gesture.n_fingers == 3)
- type = THREE_FINGERS_FLICK_LEFT_RETURN;
- }
- else if (cov->flick_gesture.dir == FLICK_DIRECTION_RIGHT_RETURN)
- {
- if (cov->flick_gesture.n_fingers == 1)
- type = ONE_FINGER_FLICK_RIGHT_RETURN;
- if (cov->flick_gesture.n_fingers == 2)
- type = TWO_FINGERS_FLICK_RIGHT_RETURN;
- if (cov->flick_gesture.n_fingers == 3)
- type = THREE_FINGERS_FLICK_RIGHT_RETURN;
- }
- DEBUG("FLICK GESTURE: N: %d F: %d", cov->flick_gesture.n_fingers, cov->flick_gesture.dir);
- _event_emit(type, ax, ay, axe, aye, 2, cov->event_time);
-}
-
-static void
-_flick_gesture_mouse_up(Ecore_Event_Mouse_Button *ev, Cover *cov)
-{
- if (cov->flick_gesture.state == GESTURE_ONGOING)
- {
- int i;
- // check if fingers match
- for (i = 0; i < cov->flick_gesture.n_fingers; i++)
- {
- if (cov->flick_gesture.finger[i] == ev->multi.device)
- break;
- }
- if (i == cov->flick_gesture.n_fingers)
- {
- DEBUG("Finger id not recognized. Gesture aborted.");
- cov->flick_gesture.state = GESTURE_ABORTED;
- goto end;
- }
-
- // check if flick for given finger is valid
- if (!_flick_gesture_time_check(ev->timestamp,
- cov->flick_gesture.timestamp[i]))
- {
- DEBUG("finger flick gesture timeout expired. Gesture aborted.");
- cov->flick_gesture.state = GESTURE_ABORTED;
- goto end;
- }
-
- // check minimal flick length
- if (!_flick_gesture_length_check(ev->root.x, ev->root.y,
- cov->flick_gesture.x_org[i],
- cov->flick_gesture.y_org[i]))
- {
- if (!cov->flick_gesture.finger_out[i])
- {
- DEBUG("Minimal gesture length not reached and no return flick. Gesture aborted.");
- cov->flick_gesture.state = GESTURE_ABORTED;
- goto end;
- }
- cov->flick_gesture.return_flick[i] = EINA_TRUE;
- }
-
- flick_direction_e s = cov->flick_gesture.return_flick[i] ?
- cov->flick_gesture.dir :
- _flick_gesture_direction_get(ev->root.x, ev->root.y,
- cov->flick_gesture.x_org[i],
- cov->flick_gesture.y_org[i]);
-
- cov->flick_gesture.n_fingers_left--;
-
- if ((cov->flick_gesture.dir == FLICK_DIRECTION_UNDEFINED ||
- cov->flick_gesture.dir > FLICK_DIRECTION_RIGHT)
- && cov->flick_gesture.return_flick[i] == EINA_FALSE)
- {
- DEBUG("Flick gesture");
- cov->flick_gesture.dir = s;
- }
-
- // gesture is valid only if all flicks are in same direction
- if (cov->flick_gesture.dir != s)
- {
- DEBUG("Flick in different direction. Gesture aborted.");
- cov->flick_gesture.state = GESTURE_ABORTED;
- goto end;
- }
-
- cov->flick_gesture.x_end[i] = ev->root.x;
- cov->flick_gesture.y_end[i] = ev->root.y;
-
- if (!cov->flick_gesture.n_fingers_left)
- {
- _flick_event_emit(cov);
- cov->flick_gesture.state = GESTURE_NOT_STARTED;
- }
- }
-
-end:
- // if no finger is touching a screen, gesture will be reseted.
- if ((cov->flick_gesture.state == GESTURE_ABORTED) && (cov->n_taps == 0))
- {
- DEBUG("Restet flick gesture");
- cov->flick_gesture.state = GESTURE_NOT_STARTED;
- }
-}
-
-static void
-_flick_gesture_mouse_move(Ecore_Event_Mouse_Move *ev, Cover *cov)
-{
- if (cov->flick_gesture.state == GESTURE_ONGOING)
- {
- int i;
- for(i = 0; i < cov->flick_gesture.n_fingers; ++i)
- {
- if (cov->flick_gesture.finger[i] == ev->multi.device)
- break;
- }
- if (i == cov->flick_gesture.n_fingers)
- {
- if (cov->flick_gesture.n_fingers >= 3) //that is because of the EFL bug. Mouse move event before mouse down(!)
- {
- ERROR("Finger id not recognized. Gesture aborted.");
- cov->flick_gesture.state = GESTURE_ABORTED;
- return;
- }
- }
- if(!cov->flick_gesture.finger_out[i])
- {
- int dx = ev->root.x - cov->flick_gesture.x_org[i];
- int dy = ev->root.y - cov->flick_gesture.y_org[i];
- int tmp;
-
- switch(win_angle)
- {
- case 90:
- tmp = dx;
- dx = -dy;
- dy = tmp;
- break;
- case 270:
- tmp = dx;
- dx = dy;
- dy = -tmp;
- break;
- }
-
- if (abs(dx) > _e_mod_config->one_finger_flick_min_length)
- {
- cov->flick_gesture.finger_out[i] = EINA_TRUE;
- if (dx > 0)
- {
- if (cov->flick_gesture.dir == FLICK_DIRECTION_UNDEFINED ||
- cov->flick_gesture.dir == FLICK_DIRECTION_RIGHT_RETURN)
- {
- cov->flick_gesture.dir = FLICK_DIRECTION_RIGHT_RETURN;
- }
- else
- {
- ERROR("Invalid direction, abort");
- cov->flick_gesture.state = GESTURE_ABORTED;
- }
- }
- else
- {
- if (cov->flick_gesture.dir == FLICK_DIRECTION_UNDEFINED ||
- cov->flick_gesture.dir == FLICK_DIRECTION_LEFT_RETURN)
- {
- cov->flick_gesture.dir = FLICK_DIRECTION_LEFT_RETURN;
- }
- else
- {
- ERROR("Invalid direction, abort");
- cov->flick_gesture.state = GESTURE_ABORTED;
- }
- }
- return;
- }
-
- else if (abs(dy) > _e_mod_config->one_finger_flick_min_length)
- {
- cov->flick_gesture.finger_out[i] = EINA_TRUE;
- if (dy > 0)
- {
- if (cov->flick_gesture.dir == FLICK_DIRECTION_UNDEFINED ||
- cov->flick_gesture.dir == FLICK_DIRECTION_DOWN_RETURN)
- {
- cov->flick_gesture.dir = FLICK_DIRECTION_DOWN_RETURN;
- }
- else
- {
- ERROR("Invalid direction, abort");
- cov->flick_gesture.state = GESTURE_ABORTED;
- }
- }
- else
- {
- if (cov->flick_gesture.dir == FLICK_DIRECTION_UNDEFINED ||
- cov->flick_gesture.dir == FLICK_DIRECTION_UP_RETURN)
- {
- cov->flick_gesture.dir = FLICK_DIRECTION_UP_RETURN;
- }
- else
- {
- ERROR("Invalid direction, abort");
- cov->flick_gesture.state = GESTURE_ABORTED;
- }
- }
- return;
- }
- }
- }
- return;
-}
-
-static Eina_Bool
-_on_hover_timeout(void *data)
-{
- Cover *cov = data;
- DEBUG("Hover timer expierd");
-
- cov->hover_gesture.longpressed = EINA_TRUE;
- cov->hover_gesture.timer = NULL;
-
- if (cov->hover_gesture.last_emission_time == -1)
- {
- _hover_event_emit(cov, 0);
- cov->hover_gesture.last_emission_time = cov->event_time;
- }
- return EINA_FALSE;
-}
-
-static void
-_hover_gesture_timer_reset(Cover *cov, double time)
-{
- DEBUG("Hover timer reset");
- cov->hover_gesture.longpressed = EINA_FALSE;
- if (cov->hover_gesture.timer)
- {
- ecore_timer_reset(cov->hover_gesture.timer);
- return;
- }
- cov->hover_gesture.timer = ecore_timer_add(time, _on_hover_timeout, cov);
-}
-
-static void
-_hover_gesture_mouse_down(Ecore_Event_Mouse_Button *ev, Cover *cov)
-{
- if (cov->hover_gesture.state == GESTURE_NOT_STARTED &&
- cov->n_taps == 1)
- {
- cov->hover_gesture.state = GESTURE_ONGOING;
- cov->hover_gesture.timestamp = ev->timestamp;
- cov->hover_gesture.last_emission_time = -1;
- cov->hover_gesture.x[0] = ev->root.x;
- cov->hover_gesture.y[0] = ev->root.y;
- cov->hover_gesture.finger[0] = ev->multi.device;
- cov->hover_gesture.n_fingers = 1;
- _hover_gesture_timer_reset(cov, _e_mod_config->one_finger_hover_longpress_timeout);
- }
- if (cov->hover_gesture.state == GESTURE_ONGOING &&
- cov->n_taps == 2)
- {
- if (cov->hover_gesture.longpressed)
- {
- _hover_event_emit(cov, 2);
- goto abort;
- }
- cov->hover_gesture.timestamp = -1;
- cov->hover_gesture.last_emission_time = -1;
- cov->hover_gesture.x[1] = ev->root.x;
- cov->hover_gesture.y[1] = ev->root.y;
- cov->hover_gesture.finger[1] = ev->multi.device;
- cov->hover_gesture.n_fingers = 2;
- _hover_gesture_timer_reset(cov, _e_mod_config->one_finger_hover_longpress_timeout);
- }
- // abort gesture if more then 2 fingers touched screen
- if ((cov->hover_gesture.state == GESTURE_ONGOING) &&
- cov->n_taps > 2)
- {
- DEBUG("More then 2 finged. Abort hover gesture");
- _hover_event_emit(cov, 2);
- goto abort;
- }
- return;
-
-abort:
- cov->hover_gesture.state = GESTURE_ABORTED;
- if (cov->hover_gesture.timer)
- ecore_timer_del(cov->hover_gesture.timer);
- cov->hover_gesture.timer = NULL;
-}
-
-static void
-_hover_gesture_mouse_up(Ecore_Event_Mouse_Button *ev, Cover *cov)
-{
- int i;
- if (cov->hover_gesture.state == GESTURE_ONGOING)
- {
-
- for (i = 0; i < cov->hover_gesture.n_fingers; i++)
- {
- if (cov->hover_gesture.finger[i] == ev->multi.device)
- break;
- }
- if (i == cov->hover_gesture.n_fingers)
- {
- DEBUG("Invalid finger id: %d", ev->multi.device);
- return;
- }
- else
- {
- cov->hover_gesture.state = GESTURE_ABORTED;
- if (cov->hover_gesture.timer)
- ecore_timer_del(cov->hover_gesture.timer);
- cov->hover_gesture.timer = NULL;
- // aditionally emit event to complete sequence
- if (cov->hover_gesture.longpressed)
- _hover_event_emit(cov, 2);
- }
- }
- // reset gesture only if user released all his fingers
- if (cov->n_taps == 0)
- cov->hover_gesture.state = GESTURE_NOT_STARTED;
-}
-
-static void _get_root_coords(Ecore_X_Window win, int *x, int *y)
-{
- Ecore_X_Window root = ecore_x_window_root_first_get();
- Ecore_X_Window parent = ecore_x_window_parent_get(win);
- int wx, wy;
-
- if (x) *x = 0;
- if (y) *y = 0;
-
- while (parent && (root != parent))
- {
- ecore_x_window_geometry_get(parent, &wx, &wy, NULL, NULL);
- if (x) *x += wx;
- if (y) *y += wy;
- parent = ecore_x_window_parent_get(parent);
- }
-}
void
start_scroll(int x, int y)
{
- Ecore_X_Window under = ecore_x_window_at_xy_get(x, y);
- _get_root_coords(under, &rx, &ry);
- DEBUG("Send down: %d %d", x - rx, y - ry);
- ecore_x_mouse_in_send(under, x - rx, y - ry);
- ecore_x_window_focus(under);
- ecore_x_mouse_down_send(under, x - rx, y - ry, 1);
- scrolled_win = under;
}
void
continue_scroll(int x, int y)
{
- DEBUG("Send move: %d %d", x - rx, y - ry);
- ecore_x_mouse_move_send(scrolled_win, x - rx, y - ry);
}
void
end_scroll(int x, int y)
{
- DEBUG("Send up: %d %d", x - rx, y - ry);
- ecore_x_mouse_up_send(scrolled_win, x - rx, y - ry, 1);
- ecore_x_mouse_out_send(scrolled_win, x - rx, y - ry);
-}
-
-static void
-_hover_event_emit(Cover *cov, int state)
-{
- int ax = 0, ay = 0, j;
- for (j = 0; j < cov->hover_gesture.n_fingers; j++)
- {
- ax += cov->hover_gesture.x[j];
- ay += cov->hover_gesture.y[j];
- }
-
- ax /= cov->hover_gesture.n_fingers;
- ay /= cov->hover_gesture.n_fingers;
-
- switch (cov->hover_gesture.n_fingers)
- {
- case 1:
- INFO("ON FINGER HOVER");
- _event_emit(ONE_FINGER_HOVER, ax, ay, ax, ay, state, cov->event_time);
- break;
- case 2:
- INFO("TWO FINGERS HOVER");
- _event_emit(TWO_FINGERS_HOVER, ax, ay, ax, ay, state, cov->event_time);
- if (state == 0)
- start_scroll(ax, ay);
- else if (state == 1)
- continue_scroll(ax, ay);
- else if (state == 2)
- end_scroll(ax, ay);
- break;
- default:
- break;
- }
-}
-
-static void
-_hover_gesture_mouse_move(Ecore_Event_Mouse_Move *ev, Cover *cov)
-{
- if (cov->hover_gesture.state == GESTURE_ONGOING)
- {
- // check fingers
- int i;
- if (!cov->hover_gesture.longpressed)
- return;
-
- for (i = 0; i < cov->hover_gesture.n_fingers; i++)
- {
- if (cov->hover_gesture.finger[i] == ev->multi.device)
- break;
- }
- if (i == cov->hover_gesture.n_fingers)
- {
- DEBUG("Invalid finger id: %d", ev->multi.device);
- return;
- }
- cov->hover_gesture.x[i] = ev->root.x;
- cov->hover_gesture.y[i] = ev->root.y;
- _hover_event_emit(cov, 1);
- }
-}
-
-static void
-_tap_event_emit(Cover *cov, int state)
-{
- switch (cov->tap_gesture_data.n_taps)
- {
- case 1:
- if(cov->tap_gesture_data.tap_type == ONE_FINGER_GESTURE)
- {
- DEBUG("ONE_FINGER_SINGLE_TAP");
- _event_emit(ONE_FINGER_SINGLE_TAP,
- cov->tap_gesture_data.x_org[0], cov->tap_gesture_data.y_org[0],
- cov->tap_gesture_data.x_org[0], cov->tap_gesture_data.y_org[0],
- state, cov->event_time);
- }
- else if(cov->tap_gesture_data.tap_type == TWO_FINGERS_GESTURE)
- {
- DEBUG("TWO_FINGERS_SINGLE_TAP");
- _event_emit(TWO_FINGERS_SINGLE_TAP,
- cov->tap_gesture_data.x_org[0], cov->tap_gesture_data.y_org[0],
- cov->tap_gesture_data.x_org[1], cov->tap_gesture_data.y_org[1],
- state, cov->event_time);
- }
- else if(cov->tap_gesture_data.tap_type == THREE_FINGERS_GESTURE)
- {
- DEBUG("THREE_FINGERS_SINGLE_TAP");
- _event_emit(THREE_FINGERS_SINGLE_TAP,
- cov->tap_gesture_data.x_org[0], cov->tap_gesture_data.y_org[0],
- cov->tap_gesture_data.x_org[2], cov->tap_gesture_data.y_org[2],
- state, cov->event_time);
- }
- else
- {
- ERROR("Unknown tap");
- }
- break;
- case 2:
- if(cov->tap_gesture_data.tap_type == ONE_FINGER_GESTURE)
- {
- DEBUG("ONE_FINGER_DOUBLE_TAP");
- _event_emit(ONE_FINGER_DOUBLE_TAP,
- cov->tap_gesture_data.x_org[0], cov->tap_gesture_data.y_org[0],
- cov->tap_gesture_data.x_org[0], cov->tap_gesture_data.y_org[0],
- state, cov->event_time);
- }
- else if(cov->tap_gesture_data.tap_type == TWO_FINGERS_GESTURE)
- {
- DEBUG("TWO_FINGERS_DOUBLE_TAP");
- _event_emit(TWO_FINGERS_DOUBLE_TAP,
- cov->tap_gesture_data.x_org[0], cov->tap_gesture_data.y_org[0],
- cov->tap_gesture_data.x_org[1], cov->tap_gesture_data.y_org[1],
- state, cov->event_time);
- }
- else if(cov->tap_gesture_data.tap_type == THREE_FINGERS_GESTURE)
- {
- DEBUG("THREE_FINGERS_DOUBLE_TAP");
- _event_emit(THREE_FINGERS_DOUBLE_TAP,
- cov->tap_gesture_data.x_org[0], cov->tap_gesture_data.y_org[0],
- cov->tap_gesture_data.x_org[2], cov->tap_gesture_data.y_org[2],
- state, cov->event_time);
- }
- else
- {
- ERROR("Unknown tap");
- }
- break;
- case 3:
- if(cov->tap_gesture_data.tap_type == ONE_FINGER_GESTURE)
- {
- DEBUG("ONE_FINGER_TRIPLE_TAP");
- _event_emit(ONE_FINGER_TRIPLE_TAP,
- cov->tap_gesture_data.x_org[0], cov->tap_gesture_data.y_org[0],
- cov->tap_gesture_data.x_org[0], cov->tap_gesture_data.y_org[0],
- state, cov->event_time);
- }
- else if(cov->tap_gesture_data.tap_type == TWO_FINGERS_GESTURE)
- {
- DEBUG("TWO_FINGERS_TRIPLE_TAP");
- _event_emit(TWO_FINGERS_TRIPLE_TAP,
- cov->tap_gesture_data.x_org[0], cov->tap_gesture_data.y_org[0],
- cov->tap_gesture_data.x_org[1], cov->tap_gesture_data.y_org[1],
- state, cov->event_time);
- }
- else if(cov->tap_gesture_data.tap_type == THREE_FINGERS_GESTURE)
- {
- DEBUG("THREE_FINGERS_TRIPLE_TAP");
- _event_emit(THREE_FINGERS_TRIPLE_TAP,
- cov->tap_gesture_data.x_org[0], cov->tap_gesture_data.y_org[0],
- cov->tap_gesture_data.x_org[2], cov->tap_gesture_data.y_org[2],
- state, cov->event_time);
- }
- else
- {
- ERROR("Unknown tap");
- }
- break;
- default:
- ERROR("Unknown tap");
- break;
- }
-}
-
-static Eina_Bool
-_on_tap_timer_expire(void *data)
-{
- Cover *cov = data;
- DEBUG("Timer expired");
-
- if (cov->tap_gesture_data.started && !cov->tap_gesture_data.pressed)
- _tap_event_emit(cov,2);
- else
- _tap_event_emit(cov,3);
-
- // finish gesture
- cov->tap_gesture_data.started = EINA_FALSE;
- cov->tap_gesture_data.timer = NULL;
- cov->tap_gesture_data.tap_type = ONE_FINGER_GESTURE;
- cov->tap_gesture_data.finger[0] = -1;
- cov->tap_gesture_data.finger[1] = -1;
- cov->tap_gesture_data.finger[2] = -1;
-
- return EINA_FALSE;
-}
-
-static int _tap_gesture_finger_check(Cover *cov, int x, int y)
-{
- int dx = x - cov->tap_gesture_data.x_org[0];
- int dy = y - cov->tap_gesture_data.y_org[0];
-
- if (cov->tap_gesture_data.finger[0] != -1 &&
- (dx * dx + dy * dy < _e_mod_config->one_finger_tap_radius *
- _e_mod_config->one_finger_tap_radius))
- {
- return 0;
- }
-
- dx = x - cov->tap_gesture_data.x_org[1];
- dy = y - cov->tap_gesture_data.y_org[1];
- if (cov->tap_gesture_data.finger[1] != -1 &&
- (dx * dx + dy * dy < _e_mod_config->one_finger_tap_radius *
- _e_mod_config->one_finger_tap_radius))
- {
- return 1;
- }
-
- dx = x - cov->tap_gesture_data.x_org[2];
- dy = y - cov->tap_gesture_data.y_org[2];
- if (cov->tap_gesture_data.finger[2] != -1 &&
- (dx * dx + dy * dy < _e_mod_config->one_finger_tap_radius *
- _e_mod_config->one_finger_tap_radius))
- {
- return 2;
- }
-
- return -1;
-}
-
-static void
-_tap_gestures_mouse_down(Ecore_Event_Mouse_Button *ev, Cover *cov)
-{
- if (cov->n_taps > 4)
- {
- ERROR("Too many fingers");
- return;
- }
-
- cov->tap_gesture_data.pressed = EINA_TRUE;
-
- if (cov->tap_gesture_data.started == EINA_FALSE)
- {
- DEBUG("First finger down");
- cov->tap_gesture_data.started = EINA_TRUE;
- cov->tap_gesture_data.finger[0] = ev->multi.device;
- cov->tap_gesture_data.x_org[0] = ev->root.x;
- cov->tap_gesture_data.y_org[0] = ev->root.y;
- cov->tap_gesture_data.finger[1] = -1;
- cov->tap_gesture_data.finger[2] = -1;
- cov->tap_gesture_data.n_taps = 0;
- cov->tap_gesture_data.timer = ecore_timer_add(
- _e_mod_config->one_finger_tap_timeout,
- _on_tap_timer_expire, cov);
- cov->tap_gesture_data.tap_type = ONE_FINGER_GESTURE;
- }
-
- else
- {
- if (ev->multi.device == cov->tap_gesture_data.finger[0])
- {
- DEBUG("First finger down");
-
- if (_tap_gesture_finger_check(cov, ev->root.x, ev->root.y) == -1)
- {
- ERROR("Abort gesture");
- cov->tap_gesture_data.started = EINA_FALSE;
- ecore_timer_del(cov->tap_gesture_data.timer);
- cov->tap_gesture_data.timer = NULL;
- cov->tap_gesture_data.tap_type = ONE_FINGER_GESTURE;
- cov->tap_gesture_data.finger[0] = -1;
- cov->tap_gesture_data.finger[1] = -1;
- cov->tap_gesture_data.finger[2] = -1;
- _tap_gestures_mouse_down(ev, cov);
- return;
- }
-
- cov->tap_gesture_data.x_org[0] = ev->root.x;
- cov->tap_gesture_data.y_org[0] = ev->root.y;
- }
- else if (cov->tap_gesture_data.finger[1] == -1 ||
- cov->tap_gesture_data.finger[1] == ev->multi.device)
- {
- DEBUG("Second finger down");
- cov->tap_gesture_data.finger[1] = ev->multi.device;
-
- cov->tap_gesture_data.x_org[1] = ev->root.x;
- cov->tap_gesture_data.y_org[1] = ev->root.y;
- if (cov->tap_gesture_data.tap_type < TWO_FINGERS_GESTURE)
- cov->tap_gesture_data.tap_type = TWO_FINGERS_GESTURE;
- }
- else if (cov->tap_gesture_data.finger[2] == -1 ||
- cov->tap_gesture_data.finger[2] == ev->multi.device)
- {
- DEBUG("Third finger down");
- cov->tap_gesture_data.finger[2] = ev->multi.device;
-
- cov->tap_gesture_data.x_org[2] = ev->root.x;
- cov->tap_gesture_data.y_org[2] = ev->root.y;
- if (cov->tap_gesture_data.tap_type < THREE_FINGERS_GESTURE)
- cov->tap_gesture_data.tap_type = THREE_FINGERS_GESTURE;
- }
- else
- {
- ERROR("Unknown finger down");
- }
- ecore_timer_reset(cov->tap_gesture_data.timer);
- }
-}
-
-static void
-_tap_gestures_mouse_up(Ecore_Event_Mouse_Button *ev, Cover *cov)
-{
- if (cov->tap_gesture_data.timer)
- {
- cov->tap_gesture_data.pressed = EINA_FALSE;
-
- if (ev->multi.device == cov->tap_gesture_data.finger[0])
- {
- DEBUG("First finger up");
-
- int dx = ev->root.x - cov->tap_gesture_data.x_org[0];
- int dy = ev->root.y - cov->tap_gesture_data.y_org[0];
-
- if((dx * dx + dy * dy) < _e_mod_config->one_finger_tap_radius *
- _e_mod_config->one_finger_tap_radius)
- {
- if (cov->n_taps == 0)
- {
- cov->tap_gesture_data.n_taps++;
- }
- }
- else
- {
- ERROR("Abort gesture");
- cov->tap_gesture_data.started = EINA_FALSE;
- }
- }
- else if (ev->multi.device == cov->tap_gesture_data.finger[1])
- {
- DEBUG("Second finger up");
-
- int dx = ev->root.x - cov->tap_gesture_data.x_org[1];
- int dy = ev->root.y - cov->tap_gesture_data.y_org[1];
-
- if((dx * dx + dy * dy) < _e_mod_config->one_finger_tap_radius *
- _e_mod_config->one_finger_tap_radius)
- {
- if (cov->n_taps == 0)
- {
- cov->tap_gesture_data.n_taps++;
- }
- }
- else
- {
- ERROR("Abort gesture");
- cov->tap_gesture_data.started = EINA_FALSE;
- }
- }
- else if (ev->multi.device == cov->tap_gesture_data.finger[2])
- {
- DEBUG("Third finger up");
-
- int dx = ev->root.x - cov->tap_gesture_data.x_org[2];
- int dy = ev->root.y - cov->tap_gesture_data.y_org[2];
-
- if((dx * dx + dy * dy) < _e_mod_config->one_finger_tap_radius *
- _e_mod_config->one_finger_tap_radius)
- {
- if (cov->n_taps == 0)
- {
- cov->tap_gesture_data.n_taps++;
- }
- }
- else
- {
- ERROR("Abort gesture");
- cov->tap_gesture_data.started = EINA_FALSE;
- }
- }
- else
- {
- ERROR("Unknown finger up, abort gesture");
- cov->tap_gesture_data.started = EINA_FALSE;
- }
- }
-}
-
-static void
-_tap_gestures_move(Ecore_Event_Mouse_Move *ev, Cover *cov)
-{
- int i;
- for (i = 0; i < sizeof(cov->tap_gesture_data.finger)/sizeof(cov->tap_gesture_data.finger[0]); i++)
- {
- if (ev->multi.device == cov->tap_gesture_data.finger[i])
- {
- int dx = ev->root.x - cov->tap_gesture_data.x_org[i];
- int dy = ev->root.y - cov->tap_gesture_data.y_org[i];
-
- if((dx * dx + dy * dy) > _e_mod_config->one_finger_tap_radius *
- _e_mod_config->one_finger_tap_radius)
- {
- DEBUG("abort tap gesutre");
- cov->tap_gesture_data.started = EINA_FALSE;
- ecore_timer_del(cov->tap_gesture_data.timer);
- cov->tap_gesture_data.timer = NULL;
- cov->tap_gesture_data.tap_type = ONE_FINGER_GESTURE;
- cov->tap_gesture_data.finger[0] = -1;
- cov->tap_gesture_data.finger[1] = -1;
- cov->tap_gesture_data.finger[2] = -1;
- }
- break;
- }
- }
-}
-
-static unsigned int
-_win_angle_get(void)
-{
- Ecore_X_Window root, first_root;
- int ret;
- int count;
- int angle = 0;
- unsigned char *prop_data = NULL;
-
- first_root = ecore_x_window_root_first_get();
- root = ecore_x_window_root_get(first_root);
- ret = ecore_x_window_prop_property_get(root, ECORE_X_ATOM_E_ILLUME_ROTATE_ROOT_ANGLE,
- ECORE_X_ATOM_CARDINAL, 32, &prop_data, &count);
-
- if (ret && prop_data)
- memcpy (&angle, prop_data, sizeof (int));
-
- if (prop_data)
- free (prop_data);
-
- return angle;
-}
-
-static Eina_Bool
-_cb_mouse_down(void *data EINA_UNUSED,
- int type EINA_UNUSED,
- void *event)
-{
- Ecore_Event_Mouse_Button *ev = event;
-
- cov->n_taps++;
- cov->event_time = ev->timestamp;
-
- DEBUG("mouse down: multi.device: %d, taps: %d", ev->multi.device, cov->n_taps);
-
- win_angle = _win_angle_get();
-
- _flick_gesture_mouse_down(ev, cov);
- _hover_gesture_mouse_down(ev, cov);
- _tap_gestures_mouse_down(ev, cov);
-
- return ECORE_CALLBACK_PASS_ON;
-}
-
-static Eina_Bool
-_cb_mouse_up(void *data EINA_UNUSED,
- int type EINA_UNUSED,
- void *event)
-{
- Ecore_Event_Mouse_Button *ev = event;
-
- cov->n_taps--;
- cov->event_time = ev->timestamp;
-
- DEBUG("mouse up, multi.device: %d, taps: %d", ev->multi.device, cov->n_taps);
-
- _flick_gesture_mouse_up(ev, cov);
- _hover_gesture_mouse_up(ev, cov);
- _tap_gestures_mouse_up(ev, cov);
-
- return ECORE_CALLBACK_PASS_ON;
-}
-
-static Eina_Bool
-_cb_mouse_move(void *data EINA_UNUSED,
- int type EINA_UNUSED,
- void *event)
-{
- Ecore_Event_Mouse_Move *ev = event;
-
- cov->event_time = ev->timestamp;
-
- _flick_gesture_mouse_move(ev, cov);
- _hover_gesture_mouse_move(ev, cov);
- _tap_gestures_move(ev, cov);
-
- return ECORE_CALLBACK_PASS_ON;
}
Eina_Bool screen_reader_gestures_init(void)
{
- ecore_init();
- ecore_x_init(NULL);
-
- if (!ecore_x_pointer_grab(ecore_x_window_root_first_get()))
- {
- ERROR("Failed to grab pointer on: %x", ecore_x_window_root_first_get());
- return EINA_FALSE;
- }
- if (!ecore_x_input_touch_devices_grab(ecore_x_window_root_first_get()))
- {
- ERROR("Failed to grab devices on: %x", ecore_x_window_root_first_get());
- ecore_x_pointer_ungrab();
- return EINA_FALSE;
- }
-
- ecore_x_input_multi_select(ecore_x_window_root_first_get());
- _e_mod_config = calloc(sizeof(Gestures_Config), 1);
- cov = calloc(sizeof(Cover), 1);
-
- _e_mod_config->one_finger_flick_min_length = 100;
- _e_mod_config->one_finger_flick_max_time = 400;
- _e_mod_config->one_finger_hover_longpress_timeout = 0.81;
- _e_mod_config->two_fingers_hover_longpress_timeout = 0.1;
- _e_mod_config->one_finger_tap_timeout = 0.4;
- _e_mod_config->one_finger_tap_radius = 100;
-
- handlers = eina_list_append(NULL, ecore_event_handler_add(ECORE_EVENT_MOUSE_MOVE, _cb_mouse_move, NULL));
- handlers = eina_list_append(handlers, ecore_event_handler_add(ECORE_EVENT_MOUSE_BUTTON_UP, _cb_mouse_up, NULL));
- handlers = eina_list_append(handlers, ecore_event_handler_add(ECORE_EVENT_MOUSE_BUTTON_DOWN, _cb_mouse_down, NULL));
-
return EINA_TRUE;
}
void screen_reader_gestures_shutdown(void)
{
- Ecore_Event_Handler *hdlr;
- EINA_LIST_FREE(handlers, hdlr)
- {
- ecore_event_handler_del(hdlr);
- }
-
- ecore_x_pointer_ungrab();
- ecore_x_input_touch_devices_ungrab();
- ecore_x_shutdown();
- ecore_shutdown();
- free(_e_mod_config);
- free(cov);
}
void screen_reader_gestures_tracker_register(GestureCB cb, void *data)
{
- _global_cb = cb;
- _global_data = data;
}
projects / profile / tv / apps / native / screen-reader.git / commitdiff