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Discard unknown SDL events

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Mouse and keyboard events with unknown button/keycode/scancode cannot be
handled properly. Discard them without forwarding them to the
keyboard or mouse processors.

This can happen for example if a more recent version of SDL introduces
new enum values.

PR #5270 <https://github.com/Genymobile/scrcpy/pull/5270>
This commit is contained in:
Romain Vimont 2024-09-13 22:00:24 +02:00
parent de8455400c
commit c8479fe8bf
1 changed files with 23 additions and 9 deletions
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32
app/src/input_manager.c
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@ -400,7 +400,7 @@ sc_input_manager_process_key(struct sc_input_manager *im,
bool paused = im->screen->paused;
bool video = im->screen->video;
SDL_Keycode keycode = event->keysym.sym;
SDL_Keycode sdl_keycode = event->keysym.sym;
uint16_t mod = event->keysym.mod;
bool down = event->type == SDL_KEYDOWN;
bool ctrl = event->keysym.mod & KMOD_CTRL;
@ -412,21 +412,21 @@ sc_input_manager_process_key(struct sc_input_manager *im,
// The second condition is necessary to ignore the release of the modifier
// key (because in this case mod is 0).
bool is_shortcut = is_shortcut_mod(im, mod)
|| is_shortcut_key(im, keycode);
|| is_shortcut_key(im, sdl_keycode);
if (down && !repeat) {
if (keycode == im->last_keycode && mod == im->last_mod) {
if (sdl_keycode == im->last_keycode && mod == im->last_mod) {
++im->key_repeat;
} else {
im->key_repeat = 0;
im->last_keycode = keycode;
im->last_keycode = sdl_keycode;
im->last_mod = mod;
}
}
if (is_shortcut) {
enum sc_action action = down ? SC_ACTION_DOWN : SC_ACTION_UP;
switch (keycode) {
switch (sdl_keycode) {
case SDLK_h:
if (im->kp && !shift && !repeat && !paused) {
action_home(im, action);
@ -585,7 +585,7 @@ sc_input_manager_process_key(struct sc_input_manager *im,
}
uint64_t ack_to_wait = SC_SEQUENCE_INVALID;
bool is_ctrl_v = ctrl && !shift && keycode == SDLK_v && down && !repeat;
bool is_ctrl_v = ctrl && !shift && sdl_keycode == SDLK_v && down && !repeat;
if (im->clipboard_autosync && is_ctrl_v) {
if (im->legacy_paste) {
// inject the text as input events
@ -613,10 +613,20 @@ sc_input_manager_process_key(struct sc_input_manager *im,
}
}
enum sc_keycode keycode = sc_keycode_from_sdl(sdl_keycode);
if (keycode == SC_KEYCODE_UNKNOWN) {
return;
}
enum sc_scancode scancode = sc_scancode_from_sdl(event->keysym.scancode);
if (scancode == SC_SCANCODE_UNKNOWN) {
return;
}
struct sc_key_event evt = {
.action = sc_action_from_sdl_keyboard_type(event->type),
.keycode = sc_keycode_from_sdl(event->keysym.sym),
.scancode = sc_scancode_from_sdl(event->keysym.scancode),
.keycode = keycode,
.scancode = scancode,
.repeat = event->repeat,
.mods_state = sc_mods_state_from_sdl(event->keysym.mod),
};
@ -739,6 +749,10 @@ sc_input_manager_process_mouse_button(struct sc_input_manager *im,
bool down = event->type == SDL_MOUSEBUTTONDOWN;
enum sc_mouse_button button = sc_mouse_button_from_sdl(event->button);
if (button == SC_MOUSE_BUTTON_UNKNOWN) {
return;
}
if (!down) {
// Mark the button as released
im->mouse_buttons_state &= ~button;
@ -827,7 +841,7 @@ sc_input_manager_process_mouse_button(struct sc_input_manager *im,
struct sc_mouse_click_event evt = {
.position = sc_input_manager_get_position(im, event->x, event->y),
.action = sc_action_from_sdl_mousebutton_type(event->type),
.button = sc_mouse_button_from_sdl(event->button),
.button = button,
.pointer_id = use_finger ? SC_POINTER_ID_GENERIC_FINGER
: SC_POINTER_ID_MOUSE,
.buttons_state = im->mouse_buttons_state,