90 lines
No EOL
2.8 KiB
C
90 lines
No EOL
2.8 KiB
C
// Taken from https://github.com/mackstann/tinywm
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#include <X11/Xlib.h>
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#include <X11/keysym.h>
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#include <X11/XKBlib.h>
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#define MODMASK Mod1Mask
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#define MAX(a, b) ((a) > (b) ? (a) : (b))
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static Window root;
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static Display* dpy;
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static XWindowAttributes attr;
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static XButtonEvent start;
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void grab_input(Window* root) {
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XGrabKey(dpy, XKeysymToKeycode(dpy, XStringToKeysym("1")), MODMASK, *root, True, GrabModeAsync, GrabModeAsync);
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XGrabKey(dpy, XKeysymToKeycode(dpy, XStringToKeysym("Q")), MODMASK, *root, True, GrabModeAsync, GrabModeAsync);
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XGrabButton(dpy, 1, MODMASK, *root, True, ButtonPressMask|ButtonReleaseMask|PointerMotionMask, GrabModeAsync, GrabModeAsync, None, None);
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XGrabButton(dpy, 3, MODMASK, *root, True, ButtonPressMask|ButtonReleaseMask|PointerMotionMask, GrabModeAsync, GrabModeAsync, None, None);
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}
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void handle_event_keypress(XEvent *e) {
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if (e->xkey.subwindow != None) {
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KeySym keysym = XkbKeycodeToKeysym(dpy, e->xkey.keycode, 0, 0);
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if (keysym == XK_q) {
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XKillClient(dpy, e->xkey.subwindow);
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} else if (keysym == XK_1) {
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XRaiseWindow(dpy, e->xkey.subwindow);
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}
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}
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}
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void handle_event_buttonpress(XEvent *e) {
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if (e->xkey.subwindow != None) {
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XGetWindowAttributes(dpy, e->xbutton.subwindow, &attr);
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start = e->xbutton;
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}
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}
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void handle_event_motionnotify(XEvent *e) {
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if (start.subwindow != None) {
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int xdiff = e->xbutton.x_root - start.x_root;
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int ydiff = e->xbutton.y_root - start.y_root;
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XMoveResizeWindow(dpy, start.subwindow,
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attr.x + (start.button==1 ? xdiff : 0),
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attr.y + (start.button==1 ? ydiff : 0),
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MAX(1, attr.width + (start.button==3 ? xdiff : 0)),
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MAX(1, attr.height + (start.button==3 ? ydiff : 0)));
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}
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}
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void handle_event_buttonrelease(XEvent *e) {
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start.subwindow = None;
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}
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void handle_event_mappingnotify(XEvent *e) {
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XMappingEvent *ev = &e->xmapping;
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if (ev->request == MappingKeyboard || ev->request == MappingModifier) {
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XRefreshKeyboardMapping(ev);
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grab_input(&root);
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}
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}
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static void (*event_handlers[LASTEvent])(XEvent *e) = {
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[KeyPress] = handle_event_keypress,
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[ButtonPress] = handle_event_buttonpress,
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[ButtonRelease] = handle_event_buttonrelease,
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[MotionNotify] = handle_event_motionnotify,
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// Below are events that are not 100% needed but without them some programs may break!
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// TODO: MapRequest, ConfigureRequest
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[MappingNotify] = handle_event_mappingnotify
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};
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int main() {
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if(!(dpy = XOpenDisplay(0x0))) return 1;
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XEvent ev;
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root = DefaultRootWindow(dpy);
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grab_input(&root);
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start.subwindow = None;
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for (;;) {
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XNextEvent(dpy, &ev);
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if (event_handlers[ev.type]) event_handlers[ev.type](&ev);
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}
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return 0;
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} |