mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-21 22:08:08 +00:00
feat(core/emu): handle arrow buttons as swipes
[no changelog]
This commit is contained in:
obrusvit
Vít Obrusník
parent
58187625f1
commit
54468abd89
@ -31,17 +31,166 @@
|
||||
extern int sdl_display_res_x, sdl_display_res_y;
|
||||
extern int sdl_touch_offset_x, sdl_touch_offset_y;
|
||||
|
||||
static bool _touch_detected = false;
|
||||
static int _touch_x = 0;
|
||||
static int _touch_y = 0;
|
||||
|
||||
// distance from the edge where arrow button swipe starts [px]
|
||||
static const int _btn_swipe_begin = 20;
|
||||
// length of the arrow button swipe [px]
|
||||
static const int _btn_swipe_length = 60;
|
||||
|
||||
// A state machine to handle both mouse inputs (simulating touch) and arrow
|
||||
// buttons (to simulate scroll movements). The variable `input_state` is used to
|
||||
// ensure that arrow keys are not processed when mouse input is in progress and
|
||||
// that mouse actions are not processed while arrow button swipe is not
|
||||
// finished.
|
||||
typedef enum {
|
||||
IDLE,
|
||||
MOUSE_DOWN_INSIDE,
|
||||
MOUSE_DOWN_OUTSIDE,
|
||||
BUTTON_SWIPE_LEFT_INITIATED,
|
||||
BUTTON_SWIPE_RIGHT_INITIATED,
|
||||
BUTTON_SWIPE_UP_INITIATED,
|
||||
BUTTON_SWIPE_DOWN_INITIATED,
|
||||
BUTTON_SWIPE_COMPLETED
|
||||
} touch_input_state_t;
|
||||
|
||||
static touch_input_state_t input_state = IDLE;
|
||||
|
||||
static bool is_inside_display(int x, int y) {
|
||||
return (x >= sdl_touch_offset_x && y >= sdl_touch_offset_y &&
|
||||
x - sdl_touch_offset_x < sdl_display_res_x &&
|
||||
y - sdl_touch_offset_y < sdl_display_res_y);
|
||||
return x >= sdl_touch_offset_x && y >= sdl_touch_offset_y &&
|
||||
x - sdl_touch_offset_x < sdl_display_res_x &&
|
||||
y - sdl_touch_offset_y < sdl_display_res_y;
|
||||
}
|
||||
|
||||
static bool is_button_swipe_initiated() {
|
||||
return input_state == BUTTON_SWIPE_LEFT_INITIATED ||
|
||||
input_state == BUTTON_SWIPE_RIGHT_INITIATED ||
|
||||
input_state == BUTTON_SWIPE_UP_INITIATED ||
|
||||
input_state == BUTTON_SWIPE_DOWN_INITIATED;
|
||||
}
|
||||
|
||||
static void handle_mouse_events(SDL_Event event, int* ev_type, int* ev_x,
|
||||
int* ev_y) {
|
||||
bool inside_display = is_inside_display(event.button.x, event.button.y);
|
||||
switch (event.type) {
|
||||
case SDL_MOUSEBUTTONDOWN:
|
||||
if (inside_display) {
|
||||
*ev_x = event.button.x - sdl_touch_offset_x;
|
||||
*ev_y = event.button.y - sdl_touch_offset_y;
|
||||
*ev_type = TOUCH_START;
|
||||
input_state = MOUSE_DOWN_INSIDE;
|
||||
}
|
||||
break;
|
||||
|
||||
case SDL_MOUSEBUTTONUP:
|
||||
if (input_state != IDLE) {
|
||||
*ev_x = inside_display ? event.button.x - sdl_touch_offset_x : _touch_x;
|
||||
*ev_y = inside_display ? event.button.y - sdl_touch_offset_y : _touch_y;
|
||||
*ev_type = TOUCH_END;
|
||||
input_state = IDLE;
|
||||
}
|
||||
break;
|
||||
|
||||
case SDL_MOUSEMOTION:
|
||||
if (input_state != IDLE) {
|
||||
if (inside_display) {
|
||||
*ev_x = event.motion.x - sdl_touch_offset_x;
|
||||
*ev_y = event.motion.y - sdl_touch_offset_y;
|
||||
// simulate TOUCH_START if pressed in mouse returned on visible area
|
||||
*ev_type =
|
||||
(input_state == MOUSE_DOWN_OUTSIDE) ? TOUCH_START : TOUCH_MOVE;
|
||||
input_state = MOUSE_DOWN_INSIDE;
|
||||
} else {
|
||||
if (input_state == MOUSE_DOWN_INSIDE) {
|
||||
// use last valid coordinates and simulate TOUCH_END
|
||||
*ev_x = _touch_x;
|
||||
*ev_y = _touch_y;
|
||||
*ev_type = TOUCH_END;
|
||||
}
|
||||
input_state = MOUSE_DOWN_OUTSIDE;
|
||||
}
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void handle_button_events(SDL_Event event, int* ev_type, int* ev_x,
|
||||
int* ev_y) {
|
||||
// Handle arrow buttons to trigger a scroll movement by set length in the
|
||||
// direction of the button
|
||||
if (event.type == SDL_KEYDOWN && !event.key.repeat &&
|
||||
!is_button_swipe_initiated()) {
|
||||
switch (event.key.keysym.sym) {
|
||||
case SDLK_LEFT:
|
||||
*ev_x = _btn_swipe_begin;
|
||||
*ev_y = sdl_display_res_y / 2;
|
||||
*ev_type = TOUCH_START;
|
||||
input_state = BUTTON_SWIPE_LEFT_INITIATED;
|
||||
break;
|
||||
case SDLK_RIGHT:
|
||||
*ev_x = sdl_display_res_x - _btn_swipe_begin;
|
||||
*ev_y = sdl_display_res_y / 2;
|
||||
*ev_type = TOUCH_START;
|
||||
input_state = BUTTON_SWIPE_RIGHT_INITIATED;
|
||||
break;
|
||||
case SDLK_UP:
|
||||
*ev_x = sdl_display_res_x / 2;
|
||||
*ev_y = _btn_swipe_begin;
|
||||
*ev_type = TOUCH_START;
|
||||
input_state = BUTTON_SWIPE_UP_INITIATED;
|
||||
break;
|
||||
case SDLK_DOWN:
|
||||
*ev_x = sdl_display_res_x / 2;
|
||||
*ev_y = sdl_display_res_y - _btn_swipe_begin;
|
||||
*ev_type = TOUCH_START;
|
||||
input_state = BUTTON_SWIPE_DOWN_INITIATED;
|
||||
break;
|
||||
}
|
||||
} else if (event.type == SDL_KEYUP && input_state != IDLE) {
|
||||
switch (event.key.keysym.sym) {
|
||||
case SDLK_LEFT:
|
||||
if (input_state == BUTTON_SWIPE_LEFT_INITIATED) {
|
||||
*ev_x = _btn_swipe_begin + _btn_swipe_length;
|
||||
*ev_y = sdl_display_res_y / 2;
|
||||
*ev_type = TOUCH_MOVE;
|
||||
input_state = BUTTON_SWIPE_COMPLETED;
|
||||
}
|
||||
break;
|
||||
case SDLK_RIGHT:
|
||||
if (input_state == BUTTON_SWIPE_RIGHT_INITIATED) {
|
||||
*ev_x = sdl_display_res_x - _btn_swipe_begin - _btn_swipe_length;
|
||||
*ev_y = sdl_display_res_y / 2;
|
||||
*ev_type = TOUCH_MOVE;
|
||||
input_state = BUTTON_SWIPE_COMPLETED;
|
||||
}
|
||||
break;
|
||||
case SDLK_UP:
|
||||
if (input_state == BUTTON_SWIPE_UP_INITIATED) {
|
||||
*ev_x = sdl_display_res_x / 2;
|
||||
*ev_y = _btn_swipe_begin + _btn_swipe_length;
|
||||
*ev_type = TOUCH_MOVE;
|
||||
input_state = BUTTON_SWIPE_COMPLETED;
|
||||
}
|
||||
break;
|
||||
case SDLK_DOWN:
|
||||
if (input_state == BUTTON_SWIPE_DOWN_INITIATED) {
|
||||
*ev_x = sdl_display_res_x / 2;
|
||||
*ev_y = sdl_display_res_y - _btn_swipe_begin - _btn_swipe_length;
|
||||
*ev_type = TOUCH_MOVE;
|
||||
input_state = BUTTON_SWIPE_COMPLETED;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
uint32_t touch_read(void) {
|
||||
if (input_state == BUTTON_SWIPE_COMPLETED) {
|
||||
input_state = IDLE;
|
||||
return TOUCH_END | touch_pack_xy(_touch_x, _touch_y);
|
||||
}
|
||||
|
||||
emulator_poll_events();
|
||||
SDL_Event event;
|
||||
SDL_PumpEvents();
|
||||
@ -51,68 +200,20 @@ uint32_t touch_read(void) {
|
||||
int ev_type = 0;
|
||||
|
||||
while (SDL_PollEvent(&event) > 0) {
|
||||
switch (event.type) {
|
||||
case SDL_MOUSEBUTTONDOWN:
|
||||
if (is_inside_display(event.button.x, event.button.y)) {
|
||||
ev_x = event.button.x - sdl_touch_offset_x;
|
||||
ev_y = event.button.y - sdl_touch_offset_y;
|
||||
ev_type = TOUCH_START;
|
||||
}
|
||||
|
||||
break;
|
||||
|
||||
case SDL_MOUSEBUTTONUP:
|
||||
if (_touch_detected) {
|
||||
if (is_inside_display(event.button.x, event.button.y)) {
|
||||
ev_x = event.button.x - sdl_touch_offset_x;
|
||||
ev_y = event.button.y - sdl_touch_offset_y;
|
||||
} else {
|
||||
// use last valid coordinates
|
||||
ev_x = _touch_x;
|
||||
ev_y = _touch_y;
|
||||
}
|
||||
ev_type = TOUCH_END;
|
||||
}
|
||||
break;
|
||||
|
||||
case SDL_MOUSEMOTION:
|
||||
if (is_inside_display(event.motion.x, event.motion.y)) {
|
||||
ev_x = event.motion.x - sdl_touch_offset_x;
|
||||
ev_y = event.motion.y - sdl_touch_offset_y;
|
||||
|
||||
if (_touch_detected) {
|
||||
ev_type = TOUCH_MOVE;
|
||||
} else if (event.motion.state != 0) { // button pressed ?
|
||||
// simulate TOUCH_START
|
||||
ev_type = TOUCH_START;
|
||||
}
|
||||
} else {
|
||||
if (_touch_detected) {
|
||||
// use last valid coordinates and simulate TOUCH_END
|
||||
ev_x = _touch_x;
|
||||
ev_y = _touch_y;
|
||||
ev_type = TOUCH_END;
|
||||
}
|
||||
}
|
||||
break;
|
||||
if (input_state == IDLE || input_state == MOUSE_DOWN_INSIDE ||
|
||||
input_state == MOUSE_DOWN_OUTSIDE) {
|
||||
handle_mouse_events(event, &ev_type, &ev_x, &ev_y);
|
||||
}
|
||||
if (input_state == IDLE || is_button_swipe_initiated()) {
|
||||
handle_button_events(event, &ev_type, &ev_x, &ev_y);
|
||||
}
|
||||
|
||||
if (ev_type != 0) {
|
||||
_touch_x = ev_x;
|
||||
_touch_y = ev_y;
|
||||
|
||||
if (ev_type == TOUCH_START) {
|
||||
_touch_detected = true;
|
||||
break;
|
||||
}
|
||||
|
||||
if (ev_type == TOUCH_END) {
|
||||
_touch_detected = false;
|
||||
break;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return ev_type | touch_pack_xy(ev_x, ev_y);
|
||||
}
|
||||
|
||||
@ -120,7 +221,9 @@ void touch_init(void) {}
|
||||
void touch_power_on(void) {}
|
||||
void touch_wait_until_ready(void) {}
|
||||
|
||||
uint32_t touch_is_detected(void) { return _touch_detected; }
|
||||
uint32_t touch_is_detected(void) {
|
||||
return input_state == MOUSE_DOWN_INSIDE || is_button_swipe_initiated();
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user