+#include <stdio.h>
+#include <stdlib.h>
+#include <search.h>
+
+#include <X11/Xlib.h>
+#include <X11/Xproto.h>
+#include <X11/keysym.h>
+
+#include "util.h"
+#include "sys.h"
+#include "wm.h"
+
+/* Internal structures */
+struct win_sys {
+ Window xid;
+ Display *dpy;
+};
+
+typedef struct {
+ Key_t key;
+ int sym;
+} keymap_t;
+
+/* Global data */
+void *win_cache = NULL;
+
+/* Conversion functions */
+keymap_t key2sym[] = {
+ {key_left , XK_Left },
+ {key_right , XK_Right},
+ {key_up , XK_Up },
+ {key_down , XK_Down },
+ {key_home , XK_Home },
+ {key_end , XK_End },
+ {key_pageup , XK_Prior},
+ {key_pagedown, XK_Next },
+ {key_f1 , XK_F1 },
+ {key_f2 , XK_F2 },
+ {key_f3 , XK_F3 },
+ {key_f4 , XK_F4 },
+ {key_f5 , XK_F5 },
+ {key_f6 , XK_F6 },
+ {key_f7 , XK_F7 },
+ {key_f8 , XK_F8 },
+ {key_f9 , XK_F9 },
+ {key_f10 , XK_F10 },
+ {key_f11 , XK_F11 },
+ {key_f12 , XK_F12 },
+};
+
+/* - Modifiers */
+mod_t x2mod(unsigned int state, int up)
+{
+ return (mod_t){
+ .alt = !!(state & Mod1Mask ),
+ .ctrl = !!(state & ControlMask),
+ .shift = !!(state & ShiftMask ),
+ .win = !!(state & Mod4Mask ),
+ .up = up,
+ };
+}
+
+unsigned int mod2x(mod_t mod)
+{
+ return mod.alt ? Mod1Mask : 0
+ | mod.ctrl ? ControlMask : 0
+ | mod.shift ? ShiftMask : 0
+ | mod.win ? Mod4Mask : 0;
+}
+
+/* - Keycodes */
+Key_t x2key(KeySym sym)
+{
+ keymap_t *km = map_getr(key2sym,sym);
+ return km ? km->key : sym;
+}
+
+KeySym key2x(Key_t key)
+{
+ keymap_t *km = map_get(key2sym,key);
+ return km ? km->sym : key;
+}
+
+Key_t x2btn(int btn)
+{
+ return btn + key_mouse0;
+}
+
+int btn2x(Key_t key)
+{
+ return key - key_mouse0;
+}
+
+/* - Pointers */
+ptr_t x2ptr(XEvent *_ev)
+{
+ XKeyEvent *ev = &_ev->xkey;
+ return (ptr_t){ev->x, ev->y, ev->x_root, ev->y_root};
+}
+
+/* Helper functions */
+win_t *win_new(Display *dpy, Window xid)
+{
+ XWindowAttributes attr;
+ XGetWindowAttributes(dpy, xid, &attr);
+ win_t *win = new0(win_t);
+ win->x = attr.x;
+ win->y = attr.y;
+ win->w = attr.width;
+ win->h = attr.height;
+ win->sys = new0(win_sys_t);
+ win->sys->dpy = dpy;
+ win->sys->xid = xid;
+ printf("win_new: %p = %p, %d\n", win, dpy, (int)xid);
+ return win;
+}
+
+int win_cmp(const void *_a, const void *_b)
+{
+ const win_t *a = _a, *b = _b;
+ if (a->sys->dpy < b->sys->dpy) return -1;
+ if (a->sys->dpy > b->sys->dpy) return 1;
+ if (a->sys->xid < b->sys->xid) return -1;
+ if (a->sys->xid > b->sys->xid) return 1;
+ return 0;
+}
+
+win_t *win_find(Display *dpy, Window xid)
+{
+ if (!dpy || !xid)
+ return NULL;
+ //printf("win_find: %p, %d\n", dpy, (int)xid);
+ win_sys_t sys = {.dpy=dpy, .xid=xid};
+ win_t tmp = {.sys=&sys};
+ return *(win_t**)(tfind(&tmp, &win_cache, win_cmp) ?:
+ tsearch(win_new(dpy,xid), &win_cache, win_cmp));
+}
+
+void win_remove(win_t *win)
+{
+ tdelete(win, &win_cache, win_cmp);
+ free(win->sys);
+ free(win);
+}
+
+/* Callbacks */
+void process_event(int type, XEvent *ev, win_t *root)
+{
+ Display *dpy = root->sys->dpy;
+ Window rid = root->sys->xid;
+
+ /* Common data for all these events ... */
+ win_t *win = NULL; ptr_t ptr; mod_t mod;
+ if (type == KeyPress || type == KeyRelease ||
+ type == ButtonPress || type == ButtonRelease ||
+ type == MotionNotify) {
+ Window xid = ev->xkey.subwindow ?: rid;
+ win = win_find(dpy,xid);
+ ptr = x2ptr(ev);
+ mod = x2mod(ev->xkey.state, type==KeyRelease||type==ButtonRelease);
+ }
+
+ /* Split based on event */
+ //printf("event: %d\n", type);
+ if (type == KeyPress) {
+ while (XCheckTypedEvent(dpy, KeyPress, ev));
+ KeySym sym = XKeycodeToKeysym(dpy, ev->xkey.keycode, 0);
+ wm_handle_key(win, x2key(sym), mod, ptr);
+ }
+ else if (type == KeyRelease) {
+ //printf("release: %d\n", type);
+ }
+ else if (type == ButtonPress) {
+ wm_handle_key(win, x2btn(ev->xbutton.button), mod, ptr);
+ XGrabPointer(dpy, win->sys->xid, True, PointerMotionMask|ButtonReleaseMask,
+ GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
+ }
+ else if (type == ButtonRelease) {
+ XUngrabPointer(dpy, CurrentTime);
+ wm_handle_key(win, x2btn(ev->xbutton.button), mod, ptr);
+ }
+ else if (type == MotionNotify) {
+ while (XCheckTypedEvent(dpy, MotionNotify, ev));
+ wm_handle_ptr(win, ptr);
+ }
+ else if (type == ConfigureNotify) {
+ //printf("configure: %d\n", type);
+ }
+ else if (type == MapNotify) {
+ //printf("map: %d\n", type);
+ }
+ else if (type == DestroyNotify) {
+ //printf("destory: %d\n", type);
+ win_remove(win_find(dpy,ev->xdestroywindow.window));
+ }
+ else if (type == UnmapNotify) {
+ //printf("unmap: %d\n", type);
+ wm_remove(win_find(dpy,ev->xmap.window));
+ }
+ else if (type == ConfigureRequest) {
+ XConfigureRequestEvent *cre = &ev->xconfigurerequest;
+ XWindowChanges wc = {
+ .x = cre->x, .y = cre->y,
+ .width = cre->width, .height = cre->height,
+ };
+ printf("configure_req: %d - %x, (0x%lx) %dx%d @ %d,%d\n",
+ type, (int)cre->window, cre->value_mask,
+ cre->height, cre->width, cre->x, cre->y);
+ XConfigureWindow(dpy, cre->window, cre->value_mask, &wc);
+ }
+ else if (type == MapRequest) {
+ printf("map_req: %d\n", type);
+ wm_insert(win_find(dpy,ev->xmaprequest.window));
+ XMapWindow(dpy,ev->xmaprequest.window);
+ }
+ else {
+ printf("unknown event: %d\n", type);
+ }
+}
+
+/*****************
+ * Sys functions *
+ *****************/
+void sys_move(win_t *win, int x, int y, int w, int h)
+{
+ //printf("sys_move: %p - %d,%d %dx%d\n", win, x, y, w, h);
+ win->x = x; win->y = y;
+ win->w = w; win->h = h;
+ XMoveResizeWindow(win->sys->dpy, win->sys->xid, x, y, w, h);
+}
+
+void sys_raise(win_t *win)
+{
+ //printf("sys_raise: %p\n", win);
+ XRaiseWindow(win->sys->dpy, win->sys->xid);
+}
+
+void sys_focus(win_t *win)
+{
+ //printf("sys_raise: %p\n", win);
+ XSetInputFocus(win->sys->dpy, win->sys->xid,
+ RevertToNone, CurrentTime);
+}
+
+void sys_watch(win_t *win, Key_t key, mod_t mod)
+{
+ if (key_mouse0 <= key && key <= key_mouse7)
+ XGrabButton(win->sys->dpy, btn2x(key), mod2x(mod), win->sys->xid, True,
+ mod.up ? ButtonReleaseMask : ButtonPressMask,
+ GrabModeAsync, GrabModeAsync, None, None);
+ else
+ XGrabKey(win->sys->dpy, XKeysymToKeycode(win->sys->dpy, key2x(key)),
+ mod2x(mod), win->sys->xid, True, GrabModeAsync, GrabModeAsync);
+}
+
+win_t *sys_init(void)
+{
+ Display *dpy = XOpenDisplay(NULL);
+ Window xid = DefaultRootWindow(dpy);
+ XSelectInput(dpy, xid, SubstructureNotifyMask|SubstructureRedirectMask);
+ return win_find(dpy, xid);
+}
+
+void sys_run(win_t *root)
+{
+ /* Add each initial window */
+ unsigned int nkids;
+ Window par, win, *kids = NULL;
+ if (XQueryTree(root->sys->dpy, root->sys->xid,
+ &par, &win, &kids, &nkids))
+ for(int i = 0; i < nkids; i++)
+ wm_insert(win_find(root->sys->dpy, kids[i]));
+
+ /* Main loop */
+ for(;;)
+ {
+ XEvent ev;
+ XNextEvent(root->sys->dpy, &ev);
+ process_event(ev.type, &ev, root);
+ }
+}
projects / wmpus / blobdiff