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#include "app.h"
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#include <x11 xutil.h=""></x11>
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#include <x11 extensions="" xtest.h=""></x11>
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int inputInit(Input *in, App *app) {
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LOGDBG("input: init");
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in->app = app;
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in->mappedKeyCode = 0;
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in->mappedPressed = 0;
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LOGDBG("input: init: connect to X11");
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in->dpy = XOpenDisplay(NULL);
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if (!in->dpy)
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return LOGERR("input: init: cannot connect to X11");
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LOGDBG("input: init: search free keycode for temporary mappings");
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int kk = 0, kc0 = 0, kc1 = 0;
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XDisplayKeycodes(in->dpy, &kc0, &kc1);
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KeySym *ks = XGetKeyboardMapping(in->dpy, kc0, kc1 - kc0 + 1, &kk);
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for(int kc = kc0; kc <= kc1; ++kc) {
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int found = 1;
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for(int i = 0; i < kk; ++i, ++ks)
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if (ks[kc*kk + i]) { found = 0; break; }
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if (found)
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{ in->mappedKeyCode = kc; break; }
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}
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return 1;
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LOGDBG("input: init: found keycode %d", in->mappedKeyCode);
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if (!in->mappedKeyCode)
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LOGWRN("input: init: cannot found free keycode for temporary mappings, some keys may not work");
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return 1;
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}
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void inputDeinit(Input *in) {
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LOGDBG("input: deinit");
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XCloseDisplay(in->dpy);
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}
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void inputEvent(Input *in, unsigned int keySym, int press) {
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LOGDBG("input: event: keySym=%u press=%d", keySym, press);
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KeyCode keycode = XKeysymToKeycode(in->dpy, keySym);
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if (!keycode) {
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if (!in->mappedKeyCode) {
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LOGWRN("input: event: no keycode mapped to keySym[%u], and no free keycodes for temporary mapping", keySym);
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return;
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}
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keycode = in->mappedKeyCode;
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LOGDBG("input: event: temporary remap: keySym[%u] -> keycode[%hhu]", keySym, keycode);
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if (in->mappedPressed) {
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LOGWRN("input: event: temporary remap: mapped keys collision, release previously mapped key");
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XTestFakeKeyEvent(in->dpy, keycode, False, CurrentTime);
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XSync(in->dpy, False);
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}
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KeySym ks[2];
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XConvertCase(keySym, &ks[0], &ks[1]);
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LOGDBG("input: event: temporary remap: keySym[%u] -> keySyms[%lu, %lu]", keySym, ks[0], ks[1]);
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XChangeKeyboardMapping(in->dpy, keycode, ks[0] == ks[1] ? 1 : 2, ks, 1);
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XSync(in->dpy, False);
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}
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if (keycode == in->mappedKeyCode)
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in->mappedPressed = press;
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LOGDBG("input: event: keycode=%hhu press=%d", keycode, press);
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XTestFakeKeyEvent(in->dpy, keycode, press, CurrentTime);
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XSync(in->dpy, False);
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}
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