sowm/sowm.c
2019-10-12 20:02:35 +03:00

425 lines
8.5 KiB
C

// sowm
// An itsy bitsy floating window manager
// with roots in catwm.
#include <X11/Xlib.h>
#include <X11/XF86keysym.h>
#include <X11/XKBlib.h>
#include <X11/keysym.h>
#include <stdlib.h>
#include <signal.h>
#include <unistd.h>
#define WIN (c=head;c;c=c->next)
typedef union {
const char** com;
const int i;
} Arg;
struct key {
unsigned int mod;
KeySym keysym;
void (*function)(const Arg arg);
const Arg arg;
};
typedef struct client client;
struct client{
client *next, *prev;
Window win;
int f, x, y, w, h;
};
typedef struct ws ws;
struct ws{client *head;};
static void notify_destroy(XEvent *e);
static void notify_enter(XEvent *e);
static void notify_motion(XEvent *e);
static void key_grab();
static void key_press(XEvent *e);
static void button_press(XEvent *e);
static void button_release();
static void win_add(Window w);
static void win_center(Window w);
static void win_center_current();
static void win_del(Window w);
static void win_fs(Window w);
static void win_fs_current();
static void win_kill();
static void win_next();
static void win_to_ws(const Arg arg);
static void win_update(Window w);
static void ws_go(const Arg arg);
static void ws_save(int i);
static void ws_sel(int i);
static void configure_request(XEvent *e);
static void map_request(XEvent *e);
static void run(const Arg arg);
static void wm_init();
static void wm_setup();
static client *head;
static ws ws_list[10];
static int desk = 1, sh, sw;
static Display *dis;
static Window root;
static XButtonEvent start;
static XWindowAttributes attr;
#include "config.h"
static void (*events[LASTEvent])(XEvent *e) = {
[ButtonPress] = button_press,
[ButtonRelease] = button_release,
[ConfigureRequest] = configure_request,
[KeyPress] = key_press,
[MapRequest] = map_request,
[DestroyNotify] = notify_destroy,
[EnterNotify] = notify_enter,
[MotionNotify] = notify_motion
};
void win_add(Window w) {
client *c, *t;
if (!(c = (client *)calloc(1,sizeof(client))))
exit(1);
if (head == NULL) {
c->next = NULL;
c->prev = NULL;
c->win = w;
head = c;
}
else {
for (t=head;t->next;t=t->next);
c->next = NULL;
c->prev = t;
c->win = w;
t->next = c;
}
ws_save(desk);
}
void ws_go(const Arg arg) {
client *c;
int tmp = desk;
if (arg.i == desk)
return;
ws_save(desk);
ws_sel(arg.i);
if (head != NULL)
for WIN XMapWindow(dis, c->win);
ws_sel(tmp);
if (head != NULL)
for WIN XUnmapWindow(dis, c->win);
ws_sel(arg.i);
}
Window win_current() {
Window focused;
int revert_to;
XGetInputFocus(dis, &focused, &revert_to);
return focused;
}
void win_center(Window w) {
XGetWindowAttributes(dis, w, &attr);
int x = (sw / 2) - (attr.width / 2);
int y = (sh / 2) - (attr.height / 2);
XMoveWindow(dis, w, x, y);
}
void win_center_current() {
win_center(win_current());
}
void win_fs_current() {
win_fs(win_current());
}
void win_fs(Window w) {
client *c;
for WIN
if (c->win == w) break;
if (c == NULL) return;
if (c->f != 1) {
XGetWindowAttributes(dis, w, &attr);
c->f = 1;
c->x = attr.x;
c->y = attr.y;
c->w = attr.width;
c->h = attr.height;
XMoveResizeWindow(dis, w, 0, 0, sw, sh);
}
else {
c->f = 0;
XMoveResizeWindow(dis, c->win, c->x, c->y, c->w, c->h);
}
}
void win_to_ws(const Arg arg) {
int tmp = desk;
Window cur = win_current();
if (arg.i == tmp)
return;
ws_sel(arg.i);
win_add(cur);
ws_save(arg.i);
ws_sel(tmp);
XUnmapWindow(dis, cur);
win_del(cur);
ws_save(tmp);
}
void notify_destroy(XEvent *e) {
int i = 0;
client *c;
XDestroyWindowEvent *ev = &e->xdestroywindow;
for WIN
if(ev->window == c->win) i++;
if (i == 0)
return;
win_del(ev->window);
}
void configure_request(XEvent *e) {
XConfigureRequestEvent *ev = &e->xconfigurerequest;
XWindowChanges wc;
wc.x = ev->x;
wc.y = ev->y;
wc.width = ev->width;
wc.height = ev->height;
wc.sibling = ev->above;
wc.stack_mode = ev->detail;
XConfigureWindow(dis, ev->window, ev->value_mask, &wc);
}
void win_update(Window w) {
XSetInputFocus(dis, w, RevertToParent, CurrentTime);
}
void notify_enter(XEvent *e) {
XSetInputFocus(dis, e->xcrossing.window, RevertToParent, CurrentTime);
}
void key_grab() {
KeyCode code;
for(int i=0; i < sizeof(keys)/sizeof(*keys); ++i)
if ((code = XKeysymToKeycode(dis, keys[i].keysym)))
XGrabKey(dis, code, keys[i].mod, root,
True, GrabModeAsync, GrabModeAsync);
}
void key_press(XEvent *e) {
XKeyEvent ke = e->xkey;
KeySym keysym = XkbKeycodeToKeysym(dis,ke.keycode,0,0);
for(int i=0; i < sizeof(keys)/sizeof(*keys); ++i) {
if (keys[i].keysym == keysym && keys[i].mod == ke.state)
keys[i].function(keys[i].arg);
}
}
void button_press(XEvent *e) {
XButtonEvent bu = e->xbutton;
if (bu.subwindow != None) {
XGetWindowAttributes(dis, bu.subwindow, &attr);
XRaiseWindow(dis, bu.subwindow);
start = bu;
}
}
void notify_motion(XEvent *e) {
XButtonEvent bu = e->xbutton;
if (start.subwindow != None) {
int xdiff = bu.x_root - start.x_root;
int ydiff = bu.y_root - start.y_root;
XMoveResizeWindow(dis, start.subwindow,
attr.x + (start.button==1 ? xdiff : 0),
attr.y + (start.button==1 ? ydiff : 0),
attr.width + (start.button==3 ? xdiff : 0),
attr.height + (start.button==3 ? ydiff : 0));
}
}
void button_release() {
start.subwindow = None;
}
void win_kill() {
Window cur = win_current();
if (cur != root)
XKillClient(dis, cur);
}
void map_request(XEvent *e) {
XMapRequestEvent *ev = &e->xmaprequest;
XSelectInput(dis, ev->window, PropertyChangeMask|StructureNotifyMask|
EnterWindowMask|FocusChangeMask);
win_center(ev->window);
XMapWindow(dis, ev->window);
win_update(ev->window);
win_add(ev->window);
}
void win_next() {
Window cur = win_current();
client *c;
if (head != NULL) {
for WIN
if (c->win == cur) break;
c = c->next;
if (c == NULL) c = head;
win_update(c->win);
XRaiseWindow(dis, c->win);
}
}
void win_del(Window w) {
client *c;
for WIN {
if (c->win != w) continue;
if (c->prev == NULL && c->next == NULL) {
free(head);
head = NULL;
ws_save(desk);
return;
}
if (c->prev == NULL) {
head = c->next;
c->next->prev = NULL;
}
else if (c->next == NULL) {
c->prev->next = NULL;
}
else {
c->prev->next = c->next;
c->next->prev = c->prev;
}
free(c);
ws_save(desk);
return;
}
}
void ws_save(int i) {
ws_list[i].head = head;
}
void ws_sel(int i) {
head = ws_list[i].head;
desk = i;
}
void wm_setup() {
signal(SIGCHLD, SIG_IGN);
int s = DefaultScreen(dis);
root = RootWindow(dis, s);
sw = XDisplayWidth(dis, s);
sh = XDisplayHeight(dis, s);
key_grab();
for(int i=0; i < sizeof(ws_list)/sizeof(*ws_list); ++i)
ws_list[i].head = NULL;
const Arg arg = {.i = 1};
ws_go(arg);
XSelectInput(dis, root, SubstructureNotifyMask|SubstructureRedirectMask|
EnterWindowMask|LeaveWindowMask);
}
void run(const Arg arg) {
if (fork()) return;
if (dis) close(ConnectionNumber(dis));
setsid();
execvp((char*)arg.com[0], (char**)arg.com);
}
void wm_init() {
XEvent ev;
XGrabButton(dis, 1, Mod4Mask, DefaultRootWindow(dis), True,
ButtonPressMask|ButtonReleaseMask|PointerMotionMask, GrabModeAsync, GrabModeAsync, None, None);
XGrabButton(dis, 3, Mod4Mask, DefaultRootWindow(dis), True,
ButtonPressMask|ButtonReleaseMask|PointerMotionMask, GrabModeAsync, GrabModeAsync, None, None);
start.subwindow = None;
while(1 && !XNextEvent(dis,&ev))
if (events[ev.type]) events[ev.type](&ev);
}
int main() {
if ((dis = XOpenDisplay(NULL))) {
wm_setup();
wm_init();
XCloseDisplay(dis);
}
return 0;
}