mirror of https://github.com/k0kubun/xremap
Split tools sources
Takashi Kokubun
8 years ago
parent
b2ddabbe25
commit
c4660da45d
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <X11/Xatom.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/keysym.h>
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int
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error_handler(Display *display, XErrorEvent *event)
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{
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// FIXME: log error properly
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fprintf(stderr, "error detected!\n");
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return 0;
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}
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XKeyEvent
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create_key_event(Display *display, Window window, KeySym keysym, unsigned int modifiers, int type)
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{
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return (XKeyEvent){
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.display = display,
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.window = window,
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.root = XDefaultRootWindow(display),
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.subwindow = None,
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.time = CurrentTime,
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.x = 1,
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.y = 1,
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.x_root = 1,
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.y_root = 1,
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.same_screen = True,
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.keycode = XKeysymToKeycode(display, keysym),
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.state = modifiers,
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.type = type,
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};
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}
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Window
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get_focused_window(Display *display)
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{
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Window window;
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int focus_state;
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XGetInputFocus(display, &window, &focus_state);
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return window;
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}
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void
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input_key(Display *display, KeySym keysym, unsigned int modifiers)
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{
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Window window = get_focused_window(display);
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XKeyEvent event = create_key_event(display, window, keysym, modifiers, KeyPress);
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XSendEvent(display, window, True, KeyPressMask, (XEvent *)&event);
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event = create_key_event(display, window, keysym, modifiers, KeyRelease);
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XSendEvent(display, window, True, KeyReleaseMask, (XEvent *)&event);
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}
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void
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grab_keys(Display *display)
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{
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Window root = XDefaultRootWindow(display);
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XGrabKey(display, XKeysymToKeycode(display, XK_b), ControlMask, root, True, GrabModeAsync, GrabModeAsync);
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}
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void
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fetch_window_name(Display *display, Window window)
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{
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Atom net_wm_name = XInternAtom(display, "_NET_WM_NAME", True);
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XTextProperty prop;
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XGetTextProperty(display, window, &prop, net_wm_name);
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if (prop.nitems == 0) {
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XGetWMName(display, window, &prop);
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}
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if (prop.nitems > 0 && prop.value) {
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if (prop.encoding == XA_STRING) {
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printf("XA_STRING: %s\n", (char *)prop.value);
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} else {
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char **l = NULL;
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int count;
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XmbTextPropertyToTextList(display, &prop, &l, &count);
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if (count > 0 && *l)
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printf("Not XA_STRING: %s\n", *l);
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XFreeStringList(l);
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}
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}
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}
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void
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fetch_window_class(Display *display, Window window)
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{
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Atom net_wm_name = XInternAtom(display, "WM_CLASS", True);
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XTextProperty prop;
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XGetTextProperty(display, window, &prop, net_wm_name);
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if (prop.nitems > 0 && prop.value) {
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if (prop.encoding == XA_STRING) {
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printf("class XA_STRING: %s\n", (char *)prop.value);
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} else {
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char **l = NULL;
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int count;
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XmbTextPropertyToTextList(display, &prop, &l, &count);
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if (count > 0 && *l)
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printf("class Not XA_STRING: %s\n", *l);
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XFreeStringList(l);
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}
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}
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}
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void
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fetch_window_pid(Display *display, Window window)
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{
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int format;
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unsigned long nitems, after;
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unsigned char *data = NULL;
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Atom ret_type;
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Atom targ_atom = XInternAtom(display, "_NET_WM_PID", True);
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if (XGetWindowProperty(display, window, targ_atom, 0, 65536, False,
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XA_CARDINAL, &ret_type, &format, &nitems, &after, &data) == Success && nitems > 0) {
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unsigned char *r = data;
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if (r) {
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int pid = (r[1] * 256) + r[0];
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printf("pid: %d\n", pid);
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XFree(r);
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}
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}
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}
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void
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event_loop(Display *display)
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{
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XEvent event;
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while (1) {
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XNextEvent(display, &event);
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switch (event.type) {
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case KeyPress:
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input_key(display, XK_Left, 0);
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break;
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case KeyRelease:
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// ignore. Is it necessary to handle this?
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break;
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case PropertyNotify:
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fetch_window_name(display, get_focused_window(display));
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fetch_window_class(display, get_focused_window(display));
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fetch_window_pid(display, get_focused_window(display));
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break;
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case MappingNotify:
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// FIXME: refresh mapping and grag keys again
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fprintf(stderr, "mapping notify detected!\n");
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break;
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default:
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fprintf(stderr, "unexpected event detected! (%d)\n", event.type);
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break;
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}
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}
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}
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void
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remap_keys()
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{
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Display *display = XOpenDisplay(NULL);
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if (!display) {
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fprintf(stderr, "Failed to open connection with X server!\n");
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exit(1);
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}
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XSetErrorHandler(error_handler);
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XSelectInput(display, XDefaultRootWindow(display), KeyPressMask | PropertyChangeMask);
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grab_keys(display);
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event_loop(display);
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// Close this on atexit?
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XCloseDisplay(display);
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}
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@ -0,0 +1 @@
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extern int remap_keys();
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