scrcpy/app/src/event_converter.c

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#include "event_converter.h"
#define MAP(FROM, TO) case FROM: *to = TO; return true
#define FAIL default: return false
bool
convert_keycode_action(SDL_EventType from, enum android_keyevent_action *to) {
switch (from) {
MAP(SDL_KEYDOWN, AKEY_EVENT_ACTION_DOWN);
MAP(SDL_KEYUP, AKEY_EVENT_ACTION_UP);
FAIL;
}
}
static enum android_metastate
autocomplete_metastate(enum android_metastate metastate) {
// fill dependent flags
if (metastate & (AMETA_SHIFT_LEFT_ON | AMETA_SHIFT_RIGHT_ON)) {
metastate |= AMETA_SHIFT_ON;
}
if (metastate & (AMETA_CTRL_LEFT_ON | AMETA_CTRL_RIGHT_ON)) {
metastate |= AMETA_CTRL_ON;
}
if (metastate & (AMETA_ALT_LEFT_ON | AMETA_ALT_RIGHT_ON)) {
metastate |= AMETA_ALT_ON;
}
if (metastate & (AMETA_META_LEFT_ON | AMETA_META_RIGHT_ON)) {
metastate |= AMETA_META_ON;
}
return metastate;
}
enum android_metastate
convert_meta_state(SDL_Keymod mod) {
enum android_metastate metastate = 0;
if (mod & KMOD_LSHIFT) {
metastate |= AMETA_SHIFT_LEFT_ON;
}
if (mod & KMOD_RSHIFT) {
metastate |= AMETA_SHIFT_RIGHT_ON;
}
if (mod & KMOD_LCTRL) {
metastate |= AMETA_CTRL_LEFT_ON;
}
if (mod & KMOD_RCTRL) {
metastate |= AMETA_CTRL_RIGHT_ON;
}
if (mod & KMOD_LALT) {
metastate |= AMETA_ALT_LEFT_ON;
}
if (mod & KMOD_RALT) {
metastate |= AMETA_ALT_RIGHT_ON;
}
if (mod & KMOD_LGUI) { // Windows key
metastate |= AMETA_META_LEFT_ON;
}
if (mod & KMOD_RGUI) { // Windows key
metastate |= AMETA_META_RIGHT_ON;
}
if (mod & KMOD_NUM) {
metastate |= AMETA_NUM_LOCK_ON;
}
if (mod & KMOD_CAPS) {
metastate |= AMETA_CAPS_LOCK_ON;
}
if (mod & KMOD_MODE) { // Alt Gr
// no mapping?
}
// fill the dependent fields
return autocomplete_metastate(metastate);
}
bool
convert_keycode(SDL_Keycode from, enum android_keycode *to, uint16_t mod,
bool prefer_text) {
switch (from) {
MAP(SDLK_RETURN, AKEYCODE_ENTER);
MAP(SDLK_KP_ENTER, AKEYCODE_NUMPAD_ENTER);
MAP(SDLK_ESCAPE, AKEYCODE_ESCAPE);
MAP(SDLK_BACKSPACE, AKEYCODE_DEL);
MAP(SDLK_TAB, AKEYCODE_TAB);
MAP(SDLK_PAGEUP, AKEYCODE_PAGE_UP);
MAP(SDLK_DELETE, AKEYCODE_FORWARD_DEL);
MAP(SDLK_HOME, AKEYCODE_MOVE_HOME);
MAP(SDLK_END, AKEYCODE_MOVE_END);
MAP(SDLK_PAGEDOWN, AKEYCODE_PAGE_DOWN);
MAP(SDLK_RIGHT, AKEYCODE_DPAD_RIGHT);
MAP(SDLK_LEFT, AKEYCODE_DPAD_LEFT);
MAP(SDLK_DOWN, AKEYCODE_DPAD_DOWN);
MAP(SDLK_UP, AKEYCODE_DPAD_UP);
MAP(SDLK_LCTRL, AKEYCODE_CTRL_LEFT);
MAP(SDLK_RCTRL, AKEYCODE_CTRL_RIGHT);
MAP(SDLK_LSHIFT, AKEYCODE_SHIFT_LEFT);
MAP(SDLK_RSHIFT, AKEYCODE_SHIFT_RIGHT);
}
if (!(mod & (KMOD_NUM | KMOD_SHIFT))) {
// Handle Numpad events when Num Lock is disabled
// If SHIFT is pressed, a text event will be sent instead
switch(from) {
MAP(SDLK_KP_0, AKEYCODE_INSERT);
MAP(SDLK_KP_1, AKEYCODE_MOVE_END);
MAP(SDLK_KP_2, AKEYCODE_DPAD_DOWN);
MAP(SDLK_KP_3, AKEYCODE_PAGE_DOWN);
MAP(SDLK_KP_4, AKEYCODE_DPAD_LEFT);
MAP(SDLK_KP_6, AKEYCODE_DPAD_RIGHT);
MAP(SDLK_KP_7, AKEYCODE_MOVE_HOME);
MAP(SDLK_KP_8, AKEYCODE_DPAD_UP);
MAP(SDLK_KP_9, AKEYCODE_PAGE_UP);
MAP(SDLK_KP_PERIOD, AKEYCODE_FORWARD_DEL);
}
}
if (prefer_text && !(mod & KMOD_CTRL)) {
// do not forward alpha and space key events (unless Ctrl is pressed)
return false;
}
if (mod & (KMOD_LALT | KMOD_RALT | KMOD_LGUI | KMOD_RGUI)) {
return false;
}
// if ALT and META are not pressed, also handle letters and space
switch (from) {
MAP(SDLK_a, AKEYCODE_A);
MAP(SDLK_b, AKEYCODE_B);
MAP(SDLK_c, AKEYCODE_C);
MAP(SDLK_d, AKEYCODE_D);
MAP(SDLK_e, AKEYCODE_E);
MAP(SDLK_f, AKEYCODE_F);
MAP(SDLK_g, AKEYCODE_G);
MAP(SDLK_h, AKEYCODE_H);
MAP(SDLK_i, AKEYCODE_I);
MAP(SDLK_j, AKEYCODE_J);
MAP(SDLK_k, AKEYCODE_K);
MAP(SDLK_l, AKEYCODE_L);
MAP(SDLK_m, AKEYCODE_M);
MAP(SDLK_n, AKEYCODE_N);
MAP(SDLK_o, AKEYCODE_O);
MAP(SDLK_p, AKEYCODE_P);
MAP(SDLK_q, AKEYCODE_Q);
MAP(SDLK_r, AKEYCODE_R);
MAP(SDLK_s, AKEYCODE_S);
MAP(SDLK_t, AKEYCODE_T);
MAP(SDLK_u, AKEYCODE_U);
MAP(SDLK_v, AKEYCODE_V);
MAP(SDLK_w, AKEYCODE_W);
MAP(SDLK_x, AKEYCODE_X);
MAP(SDLK_y, AKEYCODE_Y);
MAP(SDLK_z, AKEYCODE_Z);
MAP(SDLK_SPACE, AKEYCODE_SPACE);
FAIL;
}
}
enum android_motionevent_buttons
convert_mouse_buttons(uint32_t state) {
enum android_motionevent_buttons buttons = 0;
if (state & SDL_BUTTON_LMASK) {
buttons |= AMOTION_EVENT_BUTTON_PRIMARY;
}
if (state & SDL_BUTTON_RMASK) {
buttons |= AMOTION_EVENT_BUTTON_SECONDARY;
}
if (state & SDL_BUTTON_MMASK) {
buttons |= AMOTION_EVENT_BUTTON_TERTIARY;
}
if (state & SDL_BUTTON_X1MASK) {
buttons |= AMOTION_EVENT_BUTTON_BACK;
}
if (state & SDL_BUTTON_X2MASK) {
buttons |= AMOTION_EVENT_BUTTON_FORWARD;
}
return buttons;
}
bool
convert_mouse_action(SDL_EventType from, enum android_motionevent_action *to) {
switch (from) {
MAP(SDL_MOUSEBUTTONDOWN, AMOTION_EVENT_ACTION_DOWN);
MAP(SDL_MOUSEBUTTONUP, AMOTION_EVENT_ACTION_UP);
FAIL;
}
}
bool
convert_touch_action(SDL_EventType from, enum android_motionevent_action *to) {
switch (from) {
MAP(SDL_FINGERMOTION, AMOTION_EVENT_ACTION_MOVE);
MAP(SDL_FINGERDOWN, AMOTION_EVENT_ACTION_DOWN);
MAP(SDL_FINGERUP, AMOTION_EVENT_ACTION_UP);
FAIL;
}
}