static void eventLoop(struct aOpts *opts, struct aXInfo *xi) {
Display *dpy = xi->display;
XEvent ev;
KeySym ks;
char cbuf[10];
wchar_t pass[128];
unsigned int clen;
unsigned int pass_pos = 0, pass_len = 0;
unsigned long keypress_time = 0;
char rbuf[sizeof(pass)];
debug("entering event main loop");
for (;;) {
if (keypress_time) {
/* check for any key press event */
if (XCheckWindowEvent(dpy, xi->window[0], KeyPressMask, &ev) == False) {
/* user fell asleep while typing (5 seconds inactivity) */
if (alock_mtime() - keypress_time > 5000) {
opts->input->setstate(AINPUT_STATE_NONE);
keypress_time = 0;
}
/* wait a bit */
usleep(25000);
continue;
}
}
else {
/* block until any key press event arrives */
XWindowEvent(dpy, xi->window[0], KeyPressMask, &ev);
}
switch (ev.type) {
case KeyPress:
/* swallow up first key press to indicate "enter mode" */
if (keypress_time == 0) {
opts->input->setstate(AINPUT_STATE_INIT);
keypress_time = alock_mtime();
pass_pos = pass_len = 0;
pass[0] = '\0';
break;
}
keypress_time = alock_mtime();
clen = XLookupString(&ev.xkey, cbuf, sizeof(cbuf), &ks, NULL);
debug("key input: %lx, %d, `%s`", ks, clen, cbuf);
/* translate key press symbol */
ks = opts->input->keypress(ks);
switch (ks) {
case NoSymbol:
break;
/* clear/initialize input buffer */
case XK_Escape:
case XK_Clear:
pass_pos = pass_len = 0;
pass[0] = '\0';
break;
/* input position navigation */
case XK_Begin:
case XK_Home:
pass_pos = 0;
break;
case XK_End:
pass_pos = pass_len;
break;
case XK_Left:
if (pass_pos > 0)
pass_pos--;
break;
case XK_Right:
if (pass_pos < pass_len)
pass_pos++;
break;
/* remove entered characters */
case XK_Delete:
if (pass_pos < pass_len) {
wmemmove(&pass[pass_pos], &pass[pass_pos + 1], pass_len - pass_pos);
pass_len--;
}
break;
case XK_BackSpace:
if (pass_pos > 0) {
wmemmove(&pass[pass_pos - 1], &pass[pass_pos], pass_len - pass_pos + 1);
pass_pos--;
pass_len--;
}
break;
/* input confirmation and authentication test */
case XK_Linefeed:
case XK_Return:
opts->input->setstate(AINPUT_STATE_CHECK);
wcstombs(rbuf, pass, sizeof(rbuf));
if (opts->auth->auth(rbuf)) {
opts->input->setstate(AINPUT_STATE_VALID);
return;
}
opts->input->setstate(AINPUT_STATE_ERROR);
opts->input->setstate(AINPUT_STATE_INIT);
keypress_time = alock_mtime();
pass_pos = pass_len = 0;
pass[0] = '\0';
break;
/* input new character at the current input position */
default:
if (clen > 0 && !iscntrl(cbuf[0]) && pass_len < (sizeof(pass) / sizeof(*pass) - 1)) {
wmemmove(&pass[pass_pos + 1], &pass[pass_pos], pass_len - pass_pos + 1);
mbtowc(&pass[pass_pos], cbuf, clen);
pass_pos++;
pass_len++;
}
break;
}
debug("entered phrase [%zu]: `%ls`", wcslen(pass), pass);
break;
case Expose:
XClearWindow(xi->display, ((XExposeEvent*)&ev)->window);
break;
}
}
}
static void eventLoop(Display *display, struct aModules *modules) {
XEvent ev;
KeySym ks;
char cbuf[10];
wchar_t pass[128];
unsigned int clen;
unsigned int pass_pos = 0, pass_len = 0;
unsigned long keypress_time = 0;
/* if possible do not page this address to the swap area */
mlock(pass, sizeof(pass));
debug("entering event main loop");
for (;;) {
if (keypress_time) {
/* check for any key press event (or root window state change) */
if (XCheckMaskEvent(display, KeyPressMask | StructureNotifyMask, &ev) == False) {
/* user fell asleep while typing (5 seconds inactivity) */
if (alock_mtime() - keypress_time > 5000) {
modules->input->setstate(AINPUT_STATE_NONE);
keypress_time = 0;
}
/* wait a bit */
usleep(25000);
continue;
}
}
else {
#if WITH_XBLIGHT
/* dim out display backlight */
if (modules->backlight != -1)
setBacklightBrightness(0);
#endif /* WITH_XBLIGHT */
/* block until any key press event arrives */
XMaskEvent(display, KeyPressMask | StructureNotifyMask, &ev);
#if WITH_XBLIGHT
/* restore original backlight brightness value */
if (modules->backlight != -1)
setBacklightBrightness(modules->backlight);
#endif /* WITH_XBLIGHT */
}
switch (ev.type) {
case KeyPress:
/* swallow up first key press to indicate "enter mode" */
if (keypress_time == 0) {
modules->input->setstate(AINPUT_STATE_INIT);
keypress_time = alock_mtime();
pass_pos = pass_len = 0;
pass[0] = '\0';
break;
}
keypress_time = alock_mtime();
clen = XLookupString(&ev.xkey, cbuf, sizeof(cbuf), &ks, NULL);
debug("key input: %lx, %d, `%.*s`", ks, clen, clen, cbuf);
/* terminal-like key remapping */
if (clen == 1 && iscntrl(cbuf[0]))
switch (cbuf[0]) {
case 0x03 /* Ctrl-C */ :
ks = XK_Escape;
break;
case 0x08 /* Ctrl-H */ :
ks = XK_BackSpace;
break;
case 0x0A /* Ctrl-J */ :
case 0x0D /* Ctrl-M */ :
ks = XK_Return;
break;
}
/* translate key press symbol */
ks = modules->input->keypress(ks);
switch (ks) {
case NoSymbol:
break;
/* clear/initialize input buffer */
case XK_Escape:
case XK_Clear:
pass_pos = pass_len = 0;
pass[0] = '\0';
break;
/* input position navigation */
case XK_Begin:
case XK_Home:
pass_pos = 0;
break;
case XK_End:
pass_pos = pass_len;
break;
case XK_Left:
if (pass_pos > 0)
pass_pos--;
break;
case XK_Right:
if (pass_pos < pass_len)
pass_pos++;
break;
/* remove entered characters */
case XK_Delete:
if (pass_pos < pass_len) {
wmemmove(&pass[pass_pos], &pass[pass_pos + 1], pass_len - pass_pos);
pass_len--;
}
break;
case XK_BackSpace:
if (pass_pos > 0) {
wmemmove(&pass[pass_pos - 1], &pass[pass_pos], pass_len - pass_pos + 1);
pass_pos--;
pass_len--;
}
break;
/* input confirmation and authentication test */
case XK_KP_Enter:
case XK_Linefeed:
case XK_Return: {
char rbuf[sizeof(pass)];
int rv;
modules->input->setstate(AINPUT_STATE_CHECK);
wcstombs(rbuf, pass, sizeof(rbuf));
rv = modules->auth->authenticate(rbuf);
memset(rbuf, 0, sizeof(rbuf));
memset(pass, 0, sizeof(pass));
pass_pos = pass_len = 0;
if (rv == 0) { /* successful authentication */
modules->input->setstate(AINPUT_STATE_VALID);
return;
}
modules->input->setstate(AINPUT_STATE_ERROR);
modules->input->setstate(AINPUT_STATE_INIT);
keypress_time = alock_mtime();
break;
}
/* input new character at the current input position */
default:
if (clen > 0 && !iscntrl(cbuf[0]) && pass_len < (sizeof(pass) / sizeof(*pass) - 1)) {
wmemmove(&pass[pass_pos + 1], &pass[pass_pos], pass_len - pass_pos + 1);
mbtowc(&pass[pass_pos], cbuf, clen);
pass_pos++;
pass_len++;
}
break;
}
debug("entered phrase [%zu]: `%ls`", wcslen(pass), pass);
break;
case ConfigureNotify:
/* NOTE: This event should be generated for the root window upon
* the display reconfiguration (e.g. resolution change). */
debug("received configure notify event");
break;
#if 0
case Expose:
XClearWindow(dpy, ((XExposeEvent*)&ev)->window);
break;
#endif
}
}
}
