6 #include <X11/Xproto.h>
7 #include <X11/keysym.h>
13 /* Internal structures */
25 wm_proto, wm_focus, natoms
31 void *win_cache = NULL;
33 /* Conversion functions */
34 keymap_t key2sym[] = {
35 {key_left , XK_Left },
36 {key_right , XK_Right},
38 {key_down , XK_Down },
39 {key_home , XK_Home },
41 {key_pageup , XK_Prior},
42 {key_pagedown, XK_Next },
58 mod_t x2mod(unsigned int state, int up)
61 .alt = !!(state & Mod1Mask ),
62 .ctrl = !!(state & ControlMask),
63 .shift = !!(state & ShiftMask ),
64 .win = !!(state & Mod4Mask ),
69 unsigned int mod2x(mod_t mod)
71 return (mod.alt ? Mod1Mask : 0)
72 | (mod.ctrl ? ControlMask : 0)
73 | (mod.shift ? ShiftMask : 0)
74 | (mod.win ? Mod4Mask : 0);
78 Key_t x2key(KeySym sym)
80 keymap_t *km = map_getr(key2sym,sym);
81 return km ? km->key : sym;
84 KeySym key2x(Key_t key)
86 keymap_t *km = map_get(key2sym,key);
87 return km ? km->sym : key;
92 return btn + key_mouse0;
97 return key - key_mouse0;
101 ptr_t x2ptr(XEvent *_ev)
103 XKeyEvent *ev = &_ev->xkey;
104 return (ptr_t){ev->x, ev->y, ev->x_root, ev->y_root};
106 Window getfocus(win_t *root, XEvent *event)
109 Window focus = PointerRoot;
110 if (event->type == KeyPress || event->type == KeyRelease)
111 XGetInputFocus(root->sys->dpy, &focus, &revert);
112 if (focus == PointerRoot)
113 focus = event->xkey.subwindow;
115 focus = event->xkey.window;
119 /* Helper functions */
120 win_t *win_new(Display *dpy, Window xid)
122 XWindowAttributes attr;
123 XGetWindowAttributes(dpy, xid, &attr);
124 win_t *win = new0(win_t);
128 win->h = attr.height;
129 win->sys = new0(win_sys_t);
132 printf("win_new: %p = %p, %d\n", win, dpy, (int)xid);
136 int win_cmp(const void *_a, const void *_b)
138 const win_t *a = _a, *b = _b;
139 if (a->sys->dpy < b->sys->dpy) return -1;
140 if (a->sys->dpy > b->sys->dpy) return 1;
141 if (a->sys->xid < b->sys->xid) return -1;
142 if (a->sys->xid > b->sys->xid) return 1;
146 win_t *win_find(Display *dpy, Window xid)
150 //printf("win_find: %p, %d\n", dpy, (int)xid);
151 win_sys_t sys = {.dpy=dpy, .xid=xid};
152 win_t tmp = {.sys=&sys};
153 return *(win_t**)(tfind(&tmp, &win_cache, win_cmp) ?:
154 tsearch(win_new(dpy,xid), &win_cache, win_cmp));
157 void win_remove(win_t *win)
159 tdelete(win, &win_cache, win_cmp);
165 void process_event(int type, XEvent *ev, win_t *root)
167 Display *dpy = root->sys->dpy;
169 /* Common data for all these events ... */
170 win_t *win = NULL; ptr_t ptr; mod_t mod;
171 if (type == KeyPress || type == KeyRelease ||
172 type == ButtonPress || type == ButtonRelease ||
173 type == MotionNotify) {
174 Window xid = getfocus(root, ev);
175 win = win_find(dpy,xid);
177 mod = x2mod(ev->xkey.state, type==KeyRelease||type==ButtonRelease);
180 /* Split based on event */
181 //printf("event: %d\n", type);
182 if (type == KeyPress) {
183 while (XCheckTypedEvent(dpy, KeyPress, ev));
184 KeySym sym = XKeycodeToKeysym(dpy, ev->xkey.keycode, 0);
185 wm_handle_key(win, x2key(sym), mod, ptr);
187 else if (type == KeyRelease) {
188 //printf("release: %d\n", type);
190 else if (type == ButtonPress) {
191 wm_handle_key(win, x2btn(ev->xbutton.button), mod, ptr);
192 XGrabPointer(dpy, win->sys->xid, True, PointerMotionMask|ButtonReleaseMask,
193 GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
195 else if (type == ButtonRelease) {
196 XUngrabPointer(dpy, CurrentTime);
197 wm_handle_key(win, x2btn(ev->xbutton.button), mod, ptr);
199 else if (type == MotionNotify) {
200 while (XCheckTypedEvent(dpy, MotionNotify, ev));
201 wm_handle_ptr(win, ptr);
203 else if (type == ConfigureNotify) {
204 //printf("configure: %d\n", type);
206 else if (type == MapNotify) {
207 //printf("map: %d\n", type);
209 else if (type == DestroyNotify) {
210 //printf("destory: %d\n", type);
211 win_remove(win_find(dpy,ev->xdestroywindow.window));
213 else if (type == UnmapNotify) {
214 //printf("unmap: %d\n", type);
215 wm_remove(win_find(dpy,ev->xmap.window));
217 else if (type == ConfigureRequest) {
218 XConfigureRequestEvent *cre = &ev->xconfigurerequest;
219 XWindowChanges wc = {
220 .x = cre->x, .y = cre->y,
221 .width = cre->width, .height = cre->height,
223 printf("configure_req: %d - %x, (0x%lx) %dx%d @ %d,%d\n",
224 type, (int)cre->window, cre->value_mask,
225 cre->height, cre->width, cre->x, cre->y);
226 XConfigureWindow(dpy, cre->window, cre->value_mask, &wc);
228 else if (type == MapRequest) {
229 printf("map_req: %d\n", type);
230 wm_insert(win_find(dpy,ev->xmaprequest.window));
231 XMapWindow(dpy,ev->xmaprequest.window);
234 printf("unknown event: %d\n", type);
241 void sys_move(win_t *win, int x, int y, int w, int h)
243 //printf("sys_move: %p - %d,%d %dx%d\n", win, x, y, w, h);
244 win->x = x; win->y = y;
245 win->w = w; win->h = h;
246 XMoveResizeWindow(win->sys->dpy, win->sys->xid, x, y, w, h);
249 void sys_raise(win_t *win)
251 //printf("sys_raise: %p\n", win);
252 XRaiseWindow(win->sys->dpy, win->sys->xid);
255 void sys_focus(win_t *win)
257 //printf("sys_raise: %p\n", win);
259 .type = ClientMessage,
260 .xclient.window = win->sys->xid,
261 .xclient.message_type = atoms[wm_proto],
262 .xclient.format = 32,
263 .xclient.data.l[0] = atoms[wm_focus],
264 .xclient.data.l[1] = CurrentTime,
266 XSetInputFocus(win->sys->dpy, win->sys->xid,
267 RevertToPointerRoot, CurrentTime);
268 //XSetInputFocus(win->sys->dpy, PointerRoot,
269 // RevertToPointerRoot, CurrentTime);
270 XSendEvent(win->sys->dpy, win->sys->xid, False, NoEventMask, &ev);
273 void sys_watch(win_t *win, Key_t key, mod_t mod)
275 //printf("sys_watch: %p - %x %hhx\n", win, key, mod);
276 if (key_mouse0 <= key && key <= key_mouse7)
277 XGrabButton(win->sys->dpy, btn2x(key), mod2x(mod), win->sys->xid, True,
278 mod.up ? ButtonReleaseMask : ButtonPressMask,
279 GrabModeAsync, GrabModeAsync, None, None);
281 XGrabKey(win->sys->dpy, XKeysymToKeycode(win->sys->dpy, key2x(key)),
282 mod2x(mod), win->sys->xid, True, GrabModeAsync, GrabModeAsync);
285 win_t *sys_init(void)
287 Display *dpy = XOpenDisplay(NULL);
288 Window xid = DefaultRootWindow(dpy);
289 atoms[wm_proto] = XInternAtom(dpy, "WM_PROTOCOLS", False);
290 atoms[wm_focus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
291 XSelectInput(dpy, xid, SubstructureNotifyMask|SubstructureRedirectMask);
292 return win_find(dpy, xid);
295 void sys_run(win_t *root)
297 /* Add each initial window */
299 Window par, win, *kids = NULL;
300 if (XQueryTree(root->sys->dpy, root->sys->xid,
301 &par, &win, &kids, &nkids))
302 for(int i = 0; i < nkids; i++)
303 wm_insert(win_find(root->sys->dpy, kids[i]));
309 XNextEvent(root->sys->dpy, &ev);
310 process_event(ev.type, &ev, root);