372 lines
11 KiB
C
372 lines
11 KiB
C
/* See LICENSE file for copyright and license details. */
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#include <errno.h>
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#include <locale.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/select.h>
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#include <X11/cursorfont.h>
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#include <X11/keysym.h>
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#include <X11/Xatom.h>
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#include <X11/Xproto.h>
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#include <X11/Xutil.h>
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#include "jdwm.h"
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#include "util.h"
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#include "event.h"
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#include "layout.h"
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#include "tag.h"
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/* extern */
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extern void (*handler[LASTEvent]) (XEvent *, jdwm_config *); /* event handler */
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int screen, sx, sy, sw, sh, wax, way, waw, wah;
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int bh;
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Atom jdwmprops, wmatom[WMLast], netatom[NetLast];
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Bool selscreen = True;
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Client *clients = NULL;
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Client *sel = NULL;
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Client *stack = NULL;
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Cursor cursor[CurLast];
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DC dc;
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Window barwin;
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/* static */
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static int (*xerrorxlib) (Display *, XErrorEvent *);
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static Bool otherwm = False, readin = True;
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static Bool running = True;
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Bool
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gettextprop(Display *disp, Window w, Atom atom, char *text, unsigned int size)
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{
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char **list = NULL;
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int n;
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XTextProperty name;
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if(!text || size == 0)
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return False;
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text[0] = '\0';
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XGetTextProperty(disp, w, &name, atom);
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if(!name.nitems)
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return False;
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if(name.encoding == XA_STRING)
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strncpy(text, (char *) name.value, size - 1);
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else if(XmbTextPropertyToTextList(disp, &name, &list, &n) >= Success && n > 0 && *list)
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{
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strncpy(text, *list, size - 1);
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XFreeStringList(list);
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}
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text[size - 1] = '\0';
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XFree(name.value);
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return True;
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}
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static void
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cleanup(Display *disp, jdwm_config *jdwmconf)
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{
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close(STDIN_FILENO);
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while(stack)
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{
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unban(stack);
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unmanage(stack, &dc, NormalState, jdwmconf);
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}
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if(dc.font.set)
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XFreeFontSet(disp, dc.font.set);
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else
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XFreeFont(disp, dc.font.xfont);
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XUngrabKey(disp, AnyKey, AnyModifier, DefaultRootWindow(disp));
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XFreePixmap(disp, dc.drawable);
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XFreeGC(disp, dc.gc);
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XDestroyWindow(disp, barwin);
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XFreeCursor(disp, cursor[CurNormal]);
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XFreeCursor(disp, cursor[CurResize]);
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XFreeCursor(disp, cursor[CurMove]);
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XSetInputFocus(disp, PointerRoot, RevertToPointerRoot, CurrentTime);
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XSync(disp, False);
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}
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static long
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getstate(Display *disp, Window w)
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{
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int format, status;
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long result = -1;
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unsigned char *p = NULL;
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unsigned long n, extra;
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Atom real;
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status = XGetWindowProperty(disp, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
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&real, &format, &n, &extra, (unsigned char **) &p);
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if(status != Success)
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return -1;
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if(n != 0)
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result = *p;
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XFree(p);
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return result;
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}
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static void
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scan(Display *disp, jdwm_config *jdwmconf)
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{
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unsigned int i, num;
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Window *wins, d1, d2;
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XWindowAttributes wa;
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wins = NULL;
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if(XQueryTree(disp, DefaultRootWindow(disp), &d1, &d2, &wins, &num))
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for(i = 0; i < num; i++)
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{
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if(!XGetWindowAttributes(disp, wins[i], &wa)
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|| wa.override_redirect || XGetTransientForHint(disp, wins[i], &d1))
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continue;
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if(wa.map_state == IsViewable || getstate(disp, wins[i]) == IconicState)
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manage(disp, &dc, wins[i], &wa, jdwmconf);
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}
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/* now the transients */
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for(i = 0; i < num; i++)
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{
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if(!XGetWindowAttributes(disp, wins[i], &wa))
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continue;
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if(XGetTransientForHint(disp, wins[i], &d1)
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&& (wa.map_state == IsViewable || getstate(disp, wins[i]) == IconicState))
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manage(disp, &dc, wins[i], &wa, jdwmconf);
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}
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if(wins)
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XFree(wins);
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}
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/** Setup everything before running
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* \param disp Display ref
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* \param jdwmconf jdwm config ref
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* \todo clean things...
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*/
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static void
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setup(Display *disp, jdwm_config *jdwmconf)
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{
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int i;
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unsigned int mask;
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Window w;
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XSetWindowAttributes wa;
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/* init atoms */
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jdwmprops = XInternAtom(disp, "_JDWM_PROPERTIES", False);
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wmatom[WMProtocols] = XInternAtom(disp, "WM_PROTOCOLS", False);
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wmatom[WMDelete] = XInternAtom(disp, "WM_DELETE_WINDOW", False);
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wmatom[WMName] = XInternAtom(disp, "WM_NAME", False);
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wmatom[WMState] = XInternAtom(disp, "WM_STATE", False);
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netatom[NetSupported] = XInternAtom(disp, "_NET_SUPPORTED", False);
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netatom[NetWMName] = XInternAtom(disp, "_NET_WM_NAME", False);
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XChangeProperty(disp, DefaultRootWindow(disp), netatom[NetSupported], XA_ATOM, 32,
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PropModeReplace, (unsigned char *) netatom, NetLast);
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/* init cursors */
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cursor[CurNormal] = XCreateFontCursor(disp, XC_left_ptr);
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cursor[CurResize] = XCreateFontCursor(disp, XC_sizing);
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cursor[CurMove] = XCreateFontCursor(disp, XC_fleur);
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/* select for events */
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wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask
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| EnterWindowMask | LeaveWindowMask | StructureNotifyMask;
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wa.cursor = cursor[CurNormal];
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XChangeWindowAttributes(disp, DefaultRootWindow(disp), CWEventMask | CWCursor, &wa);
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XSelectInput(disp, DefaultRootWindow(disp), wa.event_mask);
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grabkeys(disp, jdwmconf);
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compileregs(jdwmconf);
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/* geometry */
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sx = sy = 0;
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sw = DisplayWidth(disp, screen);
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sh = DisplayHeight(disp, screen);
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initlayouts(jdwmconf);
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/* bar */
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dc.h = bh = dc.font.height + 2;
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wa.override_redirect = 1;
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wa.background_pixmap = ParentRelative;
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wa.event_mask = ButtonPressMask | ExposureMask;
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barwin = XCreateWindow(disp, DefaultRootWindow(disp), sx, sy, sw, bh, 0,
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DefaultDepth(disp, screen), CopyFromParent,
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DefaultVisual(disp, screen),
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CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
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XDefineCursor(disp, barwin, cursor[CurNormal]);
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updatebarpos(disp, jdwmconf->current_bpos);
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XMapRaised(disp, barwin);
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/* pixmap for everything */
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dc.drawable = XCreatePixmap(disp, DefaultRootWindow(disp), sw, bh, DefaultDepth(disp, screen));
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dc.gc = XCreateGC(disp, DefaultRootWindow(disp), 0, 0);
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XSetLineAttributes(disp, dc.gc, 1, LineSolid, CapButt, JoinMiter);
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if(!dc.font.set)
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XSetFont(disp, dc.gc, dc.font.xfont->fid);
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/* multihead support */
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selscreen = XQueryPointer(disp, DefaultRootWindow(disp), &w, &w, &i, &i, &i, &i, &mask);
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loadjdwmprops(disp, jdwmconf);
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}
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/*
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* Startup Error handler to check if another window manager
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* is already running.
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*/
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static int
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xerrorstart(Display * dsply __attribute__ ((unused)), XErrorEvent * ee __attribute__ ((unused)))
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{
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otherwm = True;
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return -1;
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}
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/* extern */
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void
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uicb_quit(Display *disp __attribute__ ((unused)),
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jdwm_config *jdwmconf __attribute__((unused)),
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const char *arg __attribute__ ((unused)))
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{
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readin = running = False;
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}
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void
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updatebarpos(Display *disp, int bpos)
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{
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XEvent ev;
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wax = sx;
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way = sy;
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wah = sh;
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waw = sw;
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switch (bpos)
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{
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default:
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wah -= bh;
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way += bh;
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XMoveWindow(disp, barwin, sx, sy);
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break;
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case BarBot:
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wah -= bh;
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XMoveWindow(disp, barwin, sx, sy + wah);
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break;
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case BarOff:
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XMoveWindow(disp, barwin, sx, sy - bh);
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break;
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}
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XSync(disp, False);
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while(XCheckMaskEvent(disp, EnterWindowMask, &ev));
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}
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/* There's no way to check accesses to destroyed windows, thus those cases are
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* ignored (especially on UnmapNotify's). Other types of errors call Xlibs
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* default error handler, which may call exit.
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*/
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int
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xerror(Display * edpy, XErrorEvent * ee)
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{
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if(ee->error_code == BadWindow
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|| (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
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|| (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
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|| (ee->request_code == X_PolyFillRectangle
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&& ee->error_code == BadDrawable)
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|| (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
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|| (ee->request_code == X_ConfigureWindow
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&& ee->error_code == BadMatch) || (ee->request_code == X_GrabKey
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&& ee->error_code == BadAccess)
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|| (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
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return 0;
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fprintf(stderr, "jdwm: fatal error: request code=%d, error code=%d\n",
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ee->request_code, ee->error_code);
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return xerrorxlib(edpy, ee); /* may call exit */
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}
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int
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main(int argc, char *argv[])
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{
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char *p;
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int r, xfd;
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fd_set rd;
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XEvent ev;
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Display * dpy;
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Window root;
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jdwm_config jdwmconf;
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if(argc == 2 && !strcmp("-v", argv[1]))
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eprint("jdwm-" VERSION " © 2007 Julien Danjou\n");
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else if(argc != 1)
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eprint("usage: jdwm [-v]\n");
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setlocale(LC_CTYPE, "");
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if(!(dpy = XOpenDisplay(NULL)))
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eprint("jdwm: cannot open display\n");
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xfd = ConnectionNumber(dpy);
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screen = DefaultScreen(dpy);
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root = RootWindow(dpy, screen);
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XSetErrorHandler(xerrorstart);
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/* this causes an error if some other window manager is running */
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XSelectInput(dpy, root, SubstructureRedirectMask);
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XSync(dpy, False);
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if(otherwm)
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eprint("jdwm: another window manager is already running\n");
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XSync(dpy, False);
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XSetErrorHandler(NULL);
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xerrorxlib = XSetErrorHandler(xerror);
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XSync(dpy, False);
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parse_config(dpy, screen, &dc, &jdwmconf);
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setup(dpy, &jdwmconf);
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drawstatus(dpy, &jdwmconf);
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scan(dpy, &jdwmconf);
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XSync(dpy, False);
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/* main event loop, also reads status text from stdin */
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while(running)
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{
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FD_ZERO(&rd);
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if(readin)
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FD_SET(STDIN_FILENO, &rd);
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FD_SET(xfd, &rd);
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if(select(xfd + 1, &rd, NULL, NULL, NULL) == -1)
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{
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if(errno == EINTR)
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continue;
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eprint("select failed\n");
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}
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if(FD_ISSET(STDIN_FILENO, &rd))
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{
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switch (r = read(STDIN_FILENO, jdwmconf.statustext, sizeof(jdwmconf.statustext) - 1))
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{
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case -1:
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strncpy(jdwmconf.statustext, strerror(errno), sizeof(jdwmconf.statustext) - 1);
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jdwmconf.statustext[sizeof(jdwmconf.statustext) - 1] = '\0';
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readin = False;
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break;
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case 0:
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strncpy(jdwmconf.statustext, "EOF", 4);
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readin = False;
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break;
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default:
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for(jdwmconf.statustext[r] = '\0', p = jdwmconf.statustext + strlen(jdwmconf.statustext) - 1;
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p >= jdwmconf.statustext && *p == '\n'; *p-- = '\0');
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for(; p >= jdwmconf.statustext && *p != '\n'; --p);
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if(p > jdwmconf.statustext)
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strncpy(jdwmconf.statustext, p + 1, sizeof(jdwmconf.statustext));
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}
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drawstatus(dpy, &jdwmconf);
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}
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while(XPending(dpy))
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{
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XNextEvent(dpy, &ev);
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if(handler[ev.type])
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(handler[ev.type]) (&ev, &jdwmconf); /* call handler */
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}
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}
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cleanup(dpy, &jdwmconf);
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XCloseDisplay(dpy);
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return 0;
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}
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