310 lines
7.5 KiB
C
310 lines
7.5 KiB
C
// sowm - An itsy bitsy floating window manager.
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#include <X11/Xlib.h>
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#include <X11/XF86keysym.h>
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#include <X11/keysym.h>
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#include <X11/XKBlib.h>
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#include <stdlib.h>
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#include <signal.h>
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#include <unistd.h>
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#include "sowm.h"
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static client *list = {0}, *ws_list[10] = {0}, *cur;
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static int ws = 1, sw, sh, wx, wy, numlock = 0;
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static unsigned int ww, wh;
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static int s;
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static Display *d;
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static XButtonEvent mouse;
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static Window root;
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static void (*events[LASTEvent])(XEvent *e) = {
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[ButtonPress] = button_press,
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[ButtonRelease] = button_release,
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[ConfigureRequest] = configure_request,
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[KeyPress] = key_press,
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[MapRequest] = map_request,
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[MappingNotify] = mapping_notify,
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[DestroyNotify] = notify_destroy,
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[EnterNotify] = notify_enter,
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[MotionNotify] = notify_motion
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};
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#include "config.h"
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unsigned long getcolor(const char *col) {
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Colormap m = DefaultColormap(d, s);
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XColor c;
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return (!XAllocNamedColor(d, m, col, &c, &c))?0:c.pixel;
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}
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void win_focus(client *c) {
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cur = c;
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XSetInputFocus(d, cur->w, RevertToParent, CurrentTime);
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}
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void notify_destroy(XEvent *e) {
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win_del(e->xdestroywindow.window);
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if (list) win_focus(list->prev);
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}
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void notify_enter(XEvent *e) {
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while(XCheckTypedEvent(d, EnterNotify, e));
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while(XCheckTypedWindowEvent(d, mouse.subwindow, MotionNotify, e));
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for win if (c->w == e->xcrossing.window) win_focus(c);
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}
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void notify_motion(XEvent *e) {
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if (!mouse.subwindow || cur->f) return;
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while(XCheckTypedEvent(d, MotionNotify, e));
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int xd = e->xbutton.x_root - mouse.x_root;
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int yd = e->xbutton.y_root - mouse.y_root;
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XMoveResizeWindow(d, mouse.subwindow,
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wx + (mouse.button == 1 ? xd : 0),
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wy + (mouse.button == 1 ? yd : 0),
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MAX(1, ww + (mouse.button == 3 ? xd : 0)),
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MAX(1, wh + (mouse.button == 3 ? yd : 0)));
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}
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void key_press(XEvent *e) {
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KeySym keysym = XkbKeycodeToKeysym(d, e->xkey.keycode, 0, 0);
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for (unsigned int i=0; i < sizeof(keys)/sizeof(*keys); ++i)
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if (keys[i].keysym == keysym &&
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mod_clean(keys[i].mod) == mod_clean(e->xkey.state))
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keys[i].function(keys[i].arg);
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}
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void button_press(XEvent *e) {
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if (!e->xbutton.subwindow) return;
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win_size(e->xbutton.subwindow, &wx, &wy, &ww, &wh);
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XRaiseWindow(d, e->xbutton.subwindow);
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mouse = e->xbutton;
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}
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void button_release(XEvent *e) {
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mouse.subwindow = 0;
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}
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void win_add(Window w) {
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client *c;
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if (!(c = (client *) calloc(1, sizeof(client))))
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exit(1);
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c->w = w;
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if (list) {
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list->prev->next = c;
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c->prev = list->prev;
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list->prev = c;
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c->next = list;
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} else {
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list = c;
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list->prev = list->next = list;
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}
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ws_save(ws);
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}
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void win_del(Window w) {
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client *x = 0;
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for win if (c->w == w) x = c;
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if (!list || !x) return;
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if (x->prev == x) list = 0;
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if (list == x) list = x->next;
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if (x->next) x->next->prev = x->prev;
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if (x->prev) x->prev->next = x->next;
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free(x);
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ws_save(ws);
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}
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void win_kill(const Arg arg) {
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if (!cur) return;
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XEvent ev = { .type = ClientMessage };
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ev.xclient.window = cur->w;
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ev.xclient.format = 32;
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ev.xclient.message_type = XInternAtom(d, "WM_PROTOCOLS", True);
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ev.xclient.data.l[0] = XInternAtom(d, "WM_DELETE_WINDOW", True);
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ev.xclient.data.l[1] = CurrentTime;
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XSendEvent(d, cur->w, False, NoEventMask, &ev);
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}
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void win_center(const Arg arg) {
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if (!cur) return;
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win_size(cur->w, &(int){0}, &(int){0}, &ww, &wh);
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XMoveWindow(d, cur->w, (sw - ww) / 2, (sh - wh) / 2);
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}
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void win_fs(const Arg arg) {
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if (!cur) return;
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if ((cur->f = cur->f ? 0 : 1)) {
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win_size(cur->w, &cur->wx, &cur->wy, &cur->ww, &cur->wh);
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XMoveResizeWindow(d, cur->w, 0, 0, sw, sh);
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} else {
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XMoveResizeWindow(d, cur->w, cur->wx, cur->wy, cur->ww, cur->wh);
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}
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}
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void win_to_ws(const Arg arg) {
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int tmp = ws;
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if (arg.i == tmp) return;
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ws_sel(arg.i);
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win_add(cur->w);
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ws_save(arg.i);
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ws_sel(tmp);
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win_del(cur->w);
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XUnmapWindow(d, cur->w);
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ws_save(tmp);
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if (list) win_focus(list);
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}
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void win_prev(const Arg arg) {
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if (!cur) return;
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XRaiseWindow(d, cur->prev->w);
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win_focus(cur->prev);
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}
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void win_next(const Arg arg) {
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if (!cur) return;
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XRaiseWindow(d, cur->next->w);
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win_focus(cur->next);
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}
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void ws_go(const Arg arg) {
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int tmp = ws;
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if (arg.i == ws) return;
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ws_save(ws);
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ws_sel(arg.i);
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for win XMapWindow(d, c->w);
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ws_sel(tmp);
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for win XUnmapWindow(d, c->w);
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ws_sel(arg.i);
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if (list) win_focus(list); else cur = 0;
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}
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void configure_request(XEvent *e) {
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XConfigureRequestEvent *ev = &e->xconfigurerequest;
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XConfigureWindow(d, ev->window, ev->value_mask, &(XWindowChanges) {
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.x = ev->x,
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.y = ev->y,
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.width = ev->width,
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.height = ev->height,
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.sibling = ev->above,
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.stack_mode = ev->detail
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});
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}
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void map_request(XEvent *e) {
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Window w = e->xmaprequest.window;
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XSelectInput(d, w, StructureNotifyMask|EnterWindowMask);
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win_size(w, &wx, &wy, &ww, &wh);
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win_add(w);
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cur = list->prev;
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XSetWindowBorder(d, w, getcolor(BORDER_COLOR));
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XConfigureWindow(d, w, CWBorderWidth, &(XWindowChanges){.border_width = BORDER_WIDTH});
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if (wx + wy == 0) win_center((Arg){0});
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XMapWindow(d, w);
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win_focus(list->prev);
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}
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void mapping_notify(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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input_grab(root);
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}
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}
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void run(const Arg arg) {
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if (fork()) return;
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if (d) close(ConnectionNumber(d));
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setsid();
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execvp((char*)arg.com[0], (char**)arg.com);
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}
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void input_grab(Window root) {
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unsigned int i, j, modifiers[] = {0, LockMask, numlock, numlock|LockMask};
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XModifierKeymap *modmap = XGetModifierMapping(d);
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KeyCode code;
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for (i = 0; i < 8; i++)
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for (int k = 0; k < modmap->max_keypermod; k++)
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if (modmap->modifiermap[i * modmap->max_keypermod + k]
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== XKeysymToKeycode(d, 0xff7f))
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numlock = (1 << i);
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XUngrabKey(d, AnyKey, AnyModifier, root);
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for (i = 0; i < sizeof(keys)/sizeof(*keys); i++)
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if ((code = XKeysymToKeycode(d, keys[i].keysym)))
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for (j = 0; j < sizeof(modifiers)/sizeof(*modifiers); j++)
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XGrabKey(d, code, keys[i].mod | modifiers[j], root,
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True, GrabModeAsync, GrabModeAsync);
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for (i = 1; i < 4; i += 2)
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for (j = 0; j < sizeof(modifiers)/sizeof(*modifiers); j++)
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XGrabButton(d, i, MOD | modifiers[j], root, True,
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ButtonPressMask|ButtonReleaseMask|PointerMotionMask,
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GrabModeAsync, GrabModeAsync, 0, 0);
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XFreeModifiermap(modmap);
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}
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int main(void) {
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XEvent ev;
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if (!(d = XOpenDisplay(0))) exit(1);
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signal(SIGCHLD, SIG_IGN);
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XSetErrorHandler(xerror);
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root = RootWindow(d, s);
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sw = XDisplayWidth(d, s) - (2*BORDER_WIDTH);
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sh = XDisplayHeight(d, s) - (2*BORDER_WIDTH);
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XSelectInput(d, root, SubstructureRedirectMask);
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XDefineCursor(d, root, XCreateFontCursor(d, 68));
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input_grab(root);
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while (1 && !XNextEvent(d, &ev)) // 1 && will forever be here.
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if (events[ev.type]) events[ev.type](&ev);
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}
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