From 0235a84ef286db5c97239615ae525ce973641941 Mon Sep 17 00:00:00 2001 From: "Anselm R. Garbe" Date: Sat, 15 Sep 2007 22:25:27 +0200 Subject: [PATCH] micromizing dwm step 1 --- Makefile | 6 +- bar.c | 263 --------- client.c | 386 ------------- config.h | 26 +- config.mk | 3 - dwm.c | 1847 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ dwm.h | 147 ----- event.c | 375 ------------- main.c | 296 ---------- screen.c | 340 ------------ tile.c | 85 --- tile.h | 6 - util.c | 52 -- 13 files changed, 1861 insertions(+), 1971 deletions(-) delete mode 100644 bar.c delete mode 100644 client.c create mode 100644 dwm.c delete mode 100644 dwm.h delete mode 100644 event.c delete mode 100644 main.c delete mode 100644 screen.c delete mode 100644 tile.c delete mode 100644 tile.h delete mode 100644 util.c diff --git a/Makefile b/Makefile index 8e48185..4f03721 100644 --- a/Makefile +++ b/Makefile @@ -3,7 +3,7 @@ include config.mk -SRC += bar.c client.c event.c main.c screen.c util.c +SRC = dwm.c OBJ = ${SRC:.c=.o} all: options dwm @@ -18,7 +18,7 @@ options: @echo CC $< @${CC} -c ${CFLAGS} $< -${OBJ}: dwm.h config.h config.mk +${OBJ}: config.h config.mk dwm: ${OBJ} @echo CC -o $@ @@ -32,7 +32,7 @@ dist: clean @echo creating dist tarball @mkdir -p dwm-${VERSION} @cp -R LICENSE Makefile README config.h config.mk \ - dwm.1 dwm.h tile.h ${SRC} dwm-${VERSION} + dwm.1 ${SRC} dwm-${VERSION} @tar -cf dwm-${VERSION}.tar dwm-${VERSION} @gzip dwm-${VERSION}.tar @rm -rf dwm-${VERSION} diff --git a/bar.c b/bar.c deleted file mode 100644 index 91689cf..0000000 --- a/bar.c +++ /dev/null @@ -1,263 +0,0 @@ -/* See LICENSE file for copyright and license details. */ -#include "dwm.h" -#include -#include - -/* static */ - -static void -drawsquare(Bool filled, Bool empty, unsigned long col[ColLast]) { - int x; - XGCValues gcv; - XRectangle r = { dc.x, dc.y, dc.w, dc.h }; - - gcv.foreground = col[ColFG]; - XChangeGC(dpy, dc.gc, GCForeground, &gcv); - x = (dc.font.ascent + dc.font.descent + 2) / 4; - r.x = dc.x + 1; - r.y = dc.y + 1; - if(filled) { - r.width = r.height = x + 1; - XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1); - } - else if(empty) { - r.width = r.height = x; - XDrawRectangles(dpy, dc.drawable, dc.gc, &r, 1); - } -} - -static unsigned long -initcolor(const char *colstr) { - Colormap cmap = DefaultColormap(dpy, screen); - XColor color; - - if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color)) - eprint("error, cannot allocate color '%s'\n", colstr); - return color.pixel; -} - -static void -initfont(const char *fontstr) { - char *def, **missing; - int i, n; - - missing = NULL; - if(dc.font.set) - XFreeFontSet(dpy, dc.font.set); - dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def); - if(missing) { - while(n--) - fprintf(stderr, "dwm: missing fontset: %s\n", missing[n]); - XFreeStringList(missing); - } - if(dc.font.set) { - XFontSetExtents *font_extents; - XFontStruct **xfonts; - char **font_names; - dc.font.ascent = dc.font.descent = 0; - font_extents = XExtentsOfFontSet(dc.font.set); - n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names); - for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) { - if(dc.font.ascent < (*xfonts)->ascent) - dc.font.ascent = (*xfonts)->ascent; - if(dc.font.descent < (*xfonts)->descent) - dc.font.descent = (*xfonts)->descent; - xfonts++; - } - } - else { - if(dc.font.xfont) - XFreeFont(dpy, dc.font.xfont); - dc.font.xfont = NULL; - if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr)) - || !(dc.font.xfont = XLoadQueryFont(dpy, "fixed"))) - eprint("error, cannot load font: '%s'\n", fontstr); - dc.font.ascent = dc.font.xfont->ascent; - dc.font.descent = dc.font.xfont->descent; - } - dc.font.height = dc.font.ascent + dc.font.descent; -} - -static Bool -isoccupied(unsigned int t) { - Client *c; - - for(c = clients; c; c = c->next) - if(c->tags[t]) - return True; - return False; -} - -static unsigned int -textnw(const char *text, unsigned int len) { - XRectangle r; - - if(dc.font.set) { - XmbTextExtents(dc.font.set, text, len, NULL, &r); - return r.width; - } - return XTextWidth(dc.font.xfont, text, len); -} - -static void -drawtext(const char *text, unsigned long col[ColLast]) { - int x, y, w, h; - static char buf[256]; - unsigned int len, olen; - XRectangle r = { dc.x, dc.y, dc.w, dc.h }; - - XSetForeground(dpy, dc.gc, col[ColBG]); - XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1); - if(!text) - return; - w = 0; - olen = len = strlen(text); - if(len >= sizeof buf) - len = sizeof buf - 1; - memcpy(buf, text, len); - buf[len] = 0; - h = dc.font.ascent + dc.font.descent; - y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent; - x = dc.x + (h / 2); - /* shorten text if necessary */ - while(len && (w = textnw(buf, len)) > dc.w - h) - buf[--len] = 0; - if(len < olen) { - if(len > 1) - buf[len - 1] = '.'; - if(len > 2) - buf[len - 2] = '.'; - if(len > 3) - buf[len - 3] = '.'; - } - if(w > dc.w) - return; /* too long */ - XSetForeground(dpy, dc.gc, col[ColFG]); - if(dc.font.set) - XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len); - else - XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len); -} - -/* extern */ - -unsigned int bh; -unsigned int bpos = BARPOS; -DC dc = {0}; -Window barwin; - -void -drawbar(void) { - int i, x; - - dc.x = dc.y = 0; - for(i = 0; i < ntags; i++) { - dc.w = textw(tags[i]); - if(seltags[i]) { - drawtext(tags[i], dc.sel); - drawsquare(sel && sel->tags[i], isoccupied(i), dc.sel); - } - else { - drawtext(tags[i], dc.norm); - drawsquare(sel && sel->tags[i], isoccupied(i), dc.norm); - } - dc.x += dc.w; - } - dc.w = blw; - drawtext(getsymbol(), dc.norm); - x = dc.x + dc.w; - dc.w = textw(stext); - dc.x = sw - dc.w; - if(dc.x < x) { - dc.x = x; - dc.w = sw - x; - } - drawtext(stext, dc.norm); - if((dc.w = dc.x - x) > bh) { - dc.x = x; - if(sel) { - drawtext(sel->name, dc.sel); - drawsquare(sel->ismax, sel->isfloating, dc.sel); - } - else - drawtext(NULL, dc.norm); - } - XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, sw, bh, 0, 0); - XSync(dpy, False); -} - -void -initstyle(void) { - dc.norm[ColBorder] = initcolor(NORMBORDERCOLOR); - dc.norm[ColBG] = initcolor(NORMBGCOLOR); - dc.norm[ColFG] = initcolor(NORMFGCOLOR); - dc.sel[ColBorder] = initcolor(SELBORDERCOLOR); - dc.sel[ColBG] = initcolor(SELBGCOLOR); - dc.sel[ColFG] = initcolor(SELFGCOLOR); - initfont(FONT); - dc.h = bh = dc.font.height + 2; -} - -void -initbar(void) { - XSetWindowAttributes wa; - - wa.override_redirect = 1; - wa.background_pixmap = ParentRelative; - wa.event_mask = ButtonPressMask | ExposureMask; - barwin = XCreateWindow(dpy, root, sx, sy, sw, bh, 0, - DefaultDepth(dpy, screen), CopyFromParent, DefaultVisual(dpy, screen), - CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa); - XDefineCursor(dpy, barwin, cursor[CurNormal]); - updatebarpos(); - XMapRaised(dpy, barwin); - strcpy(stext, "dwm-"VERSION); - dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen)); - dc.gc = XCreateGC(dpy, root, 0, 0); - XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter); - if(!dc.font.set) - XSetFont(dpy, dc.gc, dc.font.xfont->fid); -} - -unsigned int -textw(const char *text) { - return textnw(text, strlen(text)) + dc.font.height; -} - -void -togglebar(const char *arg) { - if(bpos == BarOff) - bpos = (BARPOS == BarOff) ? BarTop : BARPOS; - else - bpos = BarOff; - updatebarpos(); - arrange(); -} - -void -updatebarpos(void) { - XEvent ev; - - wax = sx; - way = sy; - wah = sh; - waw = sw; - switch(bpos) { - default: - wah -= bh; - way += bh; - XMoveWindow(dpy, barwin, sx, sy); - break; - case BarBot: - wah -= bh; - XMoveWindow(dpy, barwin, sx, sy + wah); - break; - case BarOff: - XMoveWindow(dpy, barwin, sx, sy - bh); - break; - } - XSync(dpy, False); - while(XCheckMaskEvent(dpy, EnterWindowMask, &ev)); -} - - diff --git a/client.c b/client.c deleted file mode 100644 index c716625..0000000 --- a/client.c +++ /dev/null @@ -1,386 +0,0 @@ -/* See LICENSE file for copyright and license details. */ -#include "dwm.h" -#include -#include - -/* static */ - -static void -attachstack(Client *c) { - c->snext = stack; - stack = c; -} - -static void -detachstack(Client *c) { - Client **tc; - - for(tc=&stack; *tc && *tc != c; tc=&(*tc)->snext); - *tc = c->snext; -} - -static void -grabbuttons(Client *c, Bool focused) { - XUngrabButton(dpy, AnyButton, AnyModifier, c->win); - - if(focused) { - XGrabButton(dpy, Button1, MODKEY, c->win, False, BUTTONMASK, - GrabModeAsync, GrabModeSync, None, None); - XGrabButton(dpy, Button1, MODKEY | LockMask, c->win, False, BUTTONMASK, - GrabModeAsync, GrabModeSync, None, None); - XGrabButton(dpy, Button1, MODKEY | numlockmask, c->win, False, BUTTONMASK, - GrabModeAsync, GrabModeSync, None, None); - XGrabButton(dpy, Button1, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK, - GrabModeAsync, GrabModeSync, None, None); - - XGrabButton(dpy, Button2, MODKEY, c->win, False, BUTTONMASK, - GrabModeAsync, GrabModeSync, None, None); - XGrabButton(dpy, Button2, MODKEY | LockMask, c->win, False, BUTTONMASK, - GrabModeAsync, GrabModeSync, None, None); - XGrabButton(dpy, Button2, MODKEY | numlockmask, c->win, False, BUTTONMASK, - GrabModeAsync, GrabModeSync, None, None); - XGrabButton(dpy, Button2, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK, - GrabModeAsync, GrabModeSync, None, None); - - XGrabButton(dpy, Button3, MODKEY, c->win, False, BUTTONMASK, - GrabModeAsync, GrabModeSync, None, None); - XGrabButton(dpy, Button3, MODKEY | LockMask, c->win, False, BUTTONMASK, - GrabModeAsync, GrabModeSync, None, None); - XGrabButton(dpy, Button3, MODKEY | numlockmask, c->win, False, BUTTONMASK, - GrabModeAsync, GrabModeSync, None, None); - XGrabButton(dpy, Button3, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK, - GrabModeAsync, GrabModeSync, None, None); - } - else - XGrabButton(dpy, AnyButton, AnyModifier, c->win, False, BUTTONMASK, - GrabModeAsync, GrabModeSync, None, None); -} - -static Bool -isprotodel(Client *c) { - int i, n; - Atom *protocols; - Bool ret = False; - - if(XGetWMProtocols(dpy, c->win, &protocols, &n)) { - for(i = 0; !ret && i < n; i++) - if(protocols[i] == wmatom[WMDelete]) - ret = True; - XFree(protocols); - } - return ret; -} - -static void -setclientstate(Client *c, long state) { - long data[] = {state, None}; - - XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32, - PropModeReplace, (unsigned char *)data, 2); -} - -static int -xerrordummy(Display *dsply, XErrorEvent *ee) { - return 0; -} - -/* extern */ - -void -attach(Client *c) { - if(clients) - clients->prev = c; - c->next = clients; - clients = c; -} - -void -ban(Client *c) { - if(c->isbanned) - return; - XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y); - c->isbanned = True; -} - -void -configure(Client *c) { - XConfigureEvent ce; - - ce.type = ConfigureNotify; - ce.display = dpy; - ce.event = c->win; - ce.window = c->win; - ce.x = c->x; - ce.y = c->y; - ce.width = c->w; - ce.height = c->h; - ce.border_width = c->border; - ce.above = None; - ce.override_redirect = False; - XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce); -} - -void -detach(Client *c) { - if(c->prev) - c->prev->next = c->next; - if(c->next) - c->next->prev = c->prev; - if(c == clients) - clients = c->next; - c->next = c->prev = NULL; -} - -void -focus(Client *c) { - if((!c && selscreen) || (c && !isvisible(c))) - for(c = stack; c && !isvisible(c); c = c->snext); - if(sel && sel != c) { - grabbuttons(sel, False); - XSetWindowBorder(dpy, sel->win, dc.norm[ColBorder]); - } - if(c) { - detachstack(c); - attachstack(c); - grabbuttons(c, True); - } - sel = c; - drawbar(); - if(!selscreen) - return; - if(c) { - XSetWindowBorder(dpy, c->win, dc.sel[ColBorder]); - XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime); - } - else - XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime); -} - -void -killclient(const char *arg) { - XEvent ev; - - if(!sel) - return; - if(isprotodel(sel)) { - ev.type = ClientMessage; - ev.xclient.window = sel->win; - ev.xclient.message_type = wmatom[WMProtocols]; - ev.xclient.format = 32; - ev.xclient.data.l[0] = wmatom[WMDelete]; - ev.xclient.data.l[1] = CurrentTime; - XSendEvent(dpy, sel->win, False, NoEventMask, &ev); - } - else - XKillClient(dpy, sel->win); -} - -void -manage(Window w, XWindowAttributes *wa) { - unsigned int i; - Client *c, *t = NULL; - Window trans; - Status rettrans; - XWindowChanges wc; - - c = emallocz(sizeof(Client)); - c->tags = emallocz(ntags * sizeof(Bool)); - c->win = w; - c->x = wa->x; - c->y = wa->y; - c->w = wa->width; - c->h = wa->height; - c->oldborder = wa->border_width; - if(c->w == sw && c->h == sh) { - c->x = sx; - c->y = sy; - c->border = wa->border_width; - } - else { - if(c->x + c->w + 2 * c->border > wax + waw) - c->x = wax + waw - c->w - 2 * c->border; - if(c->y + c->h + 2 * c->border > way + wah) - c->y = way + wah - c->h - 2 * c->border; - if(c->x < wax) - c->x = wax; - if(c->y < way) - c->y = way; - c->border = BORDERPX; - } - wc.border_width = c->border; - XConfigureWindow(dpy, w, CWBorderWidth, &wc); - XSetWindowBorder(dpy, w, dc.norm[ColBorder]); - configure(c); /* propagates border_width, if size doesn't change */ - updatesizehints(c); - XSelectInput(dpy, w, - StructureNotifyMask | PropertyChangeMask | EnterWindowMask); - grabbuttons(c, False); - updatetitle(c); - if((rettrans = XGetTransientForHint(dpy, w, &trans) == Success)) - for(t = clients; t && t->win != trans; t = t->next); - if(t) - for(i = 0; i < ntags; i++) - c->tags[i] = t->tags[i]; - applyrules(c); - if(!c->isfloating) - c->isfloating = (rettrans == Success) || c->isfixed; - attach(c); - attachstack(c); - XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h); /* some windows require this */ - ban(c); - XMapWindow(dpy, c->win); - setclientstate(c, NormalState); - arrange(); -} - -void -resize(Client *c, int x, int y, int w, int h, Bool sizehints) { - double dx, dy, max, min, ratio; - XWindowChanges wc; - - if(sizehints) { - if(c->minay > 0 && c->maxay > 0 && (h - c->baseh) > 0 && (w - c->basew) > 0) { - dx = (double)(w - c->basew); - dy = (double)(h - c->baseh); - min = (double)(c->minax) / (double)(c->minay); - max = (double)(c->maxax) / (double)(c->maxay); - ratio = dx / dy; - if(max > 0 && min > 0 && ratio > 0) { - if(ratio < min) { - dy = (dx * min + dy) / (min * min + 1); - dx = dy * min; - w = (int)dx + c->basew; - h = (int)dy + c->baseh; - } - else if(ratio > max) { - dy = (dx * min + dy) / (max * max + 1); - dx = dy * min; - w = (int)dx + c->basew; - h = (int)dy + c->baseh; - } - } - } - if(c->minw && w < c->minw) - w = c->minw; - if(c->minh && h < c->minh) - h = c->minh; - if(c->maxw && w > c->maxw) - w = c->maxw; - if(c->maxh && h > c->maxh) - h = c->maxh; - if(c->incw) - w -= (w - c->basew) % c->incw; - if(c->inch) - h -= (h - c->baseh) % c->inch; - } - if(w <= 0 || h <= 0) - return; - /* offscreen appearance fixes */ - if(x > sw) - x = sw - w - 2 * c->border; - if(y > sh) - y = sh - h - 2 * c->border; - if(x + w + 2 * c->border < sx) - x = sx; - if(y + h + 2 * c->border < sy) - y = sy; - if(c->x != x || c->y != y || c->w != w || c->h != h) { - c->x = wc.x = x; - c->y = wc.y = y; - c->w = wc.width = w; - c->h = wc.height = h; - wc.border_width = c->border; - XConfigureWindow(dpy, c->win, CWX | CWY | CWWidth | CWHeight | CWBorderWidth, &wc); - configure(c); - XSync(dpy, False); - } -} - -void -unban(Client *c) { - if(!c->isbanned) - return; - XMoveWindow(dpy, c->win, c->x, c->y); - c->isbanned = False; -} - -void -unmanage(Client *c) { - XWindowChanges wc; - - wc.border_width = c->oldborder; - /* The server grab construct avoids race conditions. */ - XGrabServer(dpy); - XSetErrorHandler(xerrordummy); - XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */ - detach(c); - detachstack(c); - if(sel == c) - focus(NULL); - XUngrabButton(dpy, AnyButton, AnyModifier, c->win); - setclientstate(c, WithdrawnState); - free(c->tags); - free(c); - XSync(dpy, False); - XSetErrorHandler(xerror); - XUngrabServer(dpy); - arrange(); -} - -void -updatesizehints(Client *c) { - long msize; - XSizeHints size; - - if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags) - size.flags = PSize; - c->flags = size.flags; - if(c->flags & PBaseSize) { - c->basew = size.base_width; - c->baseh = size.base_height; - } - else if(c->flags & PMinSize) { - c->basew = size.min_width; - c->baseh = size.min_height; - } - else - c->basew = c->baseh = 0; - if(c->flags & PResizeInc) { - c->incw = size.width_inc; - c->inch = size.height_inc; - } - else - c->incw = c->inch = 0; - if(c->flags & PMaxSize) { - c->maxw = size.max_width; - c->maxh = size.max_height; - } - else - c->maxw = c->maxh = 0; - if(c->flags & PMinSize) { - c->minw = size.min_width; - c->minh = size.min_height; - } - else if(c->flags & PBaseSize) { - c->minw = size.base_width; - c->minh = size.base_height; - } - else - c->minw = c->minh = 0; - if(c->flags & PAspect) { - c->minax = size.min_aspect.x; - c->maxax = size.max_aspect.x; - c->minay = size.min_aspect.y; - c->maxay = size.max_aspect.y; - } - else - c->minax = c->maxax = c->minay = c->maxay = 0; - c->isfixed = (c->maxw && c->minw && c->maxh && c->minh - && c->maxw == c->minw && c->maxh == c->minh); -} - -void -updatetitle(Client *c) { - if(!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name)) - gettextprop(c->win, wmatom[WMName], c->name, sizeof c->name); -} diff --git a/config.h b/config.h index f946407..9dec069 100644 --- a/config.h +++ b/config.h @@ -12,24 +12,20 @@ #define SELFGCOLOR "#fff" /* tagging */ -#define TAGS \ -const char *tags[] = { "1", "2", "3", "4", "5", "6", "7", "8", "9", NULL }; -#define RULES \ -static Rule rules[] = { \ - /* class:instance:title regex tags regex isfloating */ \ - { "Firefox", "3", False }, \ - { "Gimp", NULL, True }, \ - { "MPlayer", NULL, True }, \ - { "Acroread", NULL, True }, \ +static const char *tags[] = { "1", "2", "3", "4", "5", "6", "7", "8", "9", NULL }; +static Rule rules[] = { + /* class:instance:title regex tags regex isfloating */ + { "Firefox", "3", False }, + { "Gimp", NULL, True }, + { "MPlayer", NULL, True }, + { "Acroread", NULL, True }, }; /* layout(s) */ -#include "tile.h" -#define LAYOUTS \ -static Layout layouts[] = { \ - /* symbol function */ \ - { "[]=", tile }, /* first entry is default */ \ - { "><>", floating }, \ +static Layout layouts[] = { + /* symbol function */ + { "[]=", tile }, /* first entry is default */ + { "><>", floating }, }; #define RESIZEHINTS True /* False - respect size hints in tiled resizals */ #define MWFACT 0.6 /* master width factor [0.1 .. 0.9] */ diff --git a/config.mk b/config.mk index 4b2ff6c..3a3ed7a 100644 --- a/config.mk +++ b/config.mk @@ -3,9 +3,6 @@ VERSION = 4.5 # Customize below to fit your system -# additional layouts beside floating -SRC = tile.c - # paths PREFIX = /usr/local MANPREFIX = ${PREFIX}/share/man diff --git a/dwm.c b/dwm.c new file mode 100644 index 0000000..d497f4c --- /dev/null +++ b/dwm.c @@ -0,0 +1,1847 @@ +/* See LICENSE file for copyright and license details. */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* macros */ +#define BUTTONMASK (ButtonPressMask | ButtonReleaseMask) +#define CLEANMASK(mask) (mask & ~(numlockmask | LockMask)) +#define MOUSEMASK (BUTTONMASK | PointerMotionMask) + +/* enums */ +enum { BarTop, BarBot, BarOff }; /* bar position */ +enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */ +enum { ColBorder, ColFG, ColBG, ColLast }; /* color */ +enum { NetSupported, NetWMName, NetLast }; /* EWMH atoms */ +enum { WMProtocols, WMDelete, WMName, WMState, WMLast };/* default atoms */ + +/* typedefs */ +typedef struct Client Client; +struct Client { + char name[256]; + int x, y, w, h; + int rx, ry, rw, rh; /* revert geometry */ + int basew, baseh, incw, inch, maxw, maxh, minw, minh; + int minax, maxax, minay, maxay; + long flags; + unsigned int border, oldborder; + Bool isbanned, isfixed, ismax, isfloating; + Bool *tags; + Client *next; + Client *prev; + Client *snext; + Window win; +}; + +typedef struct { + int x, y, w, h; + unsigned long norm[ColLast]; + unsigned long sel[ColLast]; + Drawable drawable; + GC gc; + struct { + int ascent; + int descent; + int height; + XFontSet set; + XFontStruct *xfont; + } font; +} DC; /* draw context */ + +typedef struct { + unsigned long mod; + KeySym keysym; + void (*func)(const char *arg); + const char *arg; +} Key; + +typedef struct { + const char *symbol; + void (*arrange)(void); +} Layout; + +typedef struct { + const char *prop; + const char *tags; + Bool isfloating; +} Rule; + +typedef struct { + regex_t *propregex; + regex_t *tagregex; +} Regs; + +/* functions */ +static void eprint(const char *errstr, ...); +static void *emallocz(unsigned int size); +static void spawn(const char *arg); +static void drawsquare(Bool filled, Bool empty, unsigned long col[ColLast]); +static unsigned long initcolor(const char *colstr); +static void initfont(const char *fontstr); +static Bool isoccupied(unsigned int t); +static unsigned int textnw(const char *text, unsigned int len); +static void drawtext(const char *text, unsigned long col[ColLast]); +static void drawbar(void); +static void initstyle(void); +static void initbar(void); +static unsigned int textw(const char *text); +static void togglebar(const char *arg); +static void updatebarpos(void); +static void attachstack(Client *c); +static void detachstack(Client *c); +static void grabbuttons(Client *c, Bool focused); +static Bool isprotodel(Client *c); +static void setclientstate(Client *c, long state); +static int xerrordummy(Display *dsply, XErrorEvent *ee); +static void ban(Client *c); +static void configure(Client *c); +static void killclient(const char *arg); +static void manage(Window w, XWindowAttributes *wa); +static void resize(Client *c, int x, int y, int w, int h, Bool sizehints); +static void unban(Client *c); +static void unmanage(Client *c); +static void updatesizehints(Client *c); +static void updatetitle(Client *c); +static Client *getclient(Window w); +static void movemouse(Client *c); +static void resizemouse(Client *c); +static void buttonpress(XEvent *e); +static void configurerequest(XEvent *e); +static void configurenotify(XEvent *e); +static void destroynotify(XEvent *e); +static void enternotify(XEvent *e); +static void expose(XEvent *e); +static void keypress(XEvent *e); +static void leavenotify(XEvent *e); +static void mappingnotify(XEvent *e); +static void maprequest(XEvent *e); +static void propertynotify(XEvent *e); +static void unmapnotify(XEvent *e); +static void grabkeys(void); +static unsigned int idxoftag(const char *tag); +static void floating(void); /* default floating layout */ +static void applyrules(Client *c); +static void compileregs(void); +static void focusnext(const char *arg); +static void focusprev(const char *arg); +static void initlayouts(void); +static Bool isfloating(void); +static Bool isvisible(Client *c); +static void restack(void); +static void setlayout(const char *arg); +static void tag(const char *arg); +static void togglefloating(const char *arg); +static void togglemax(const char *arg); +static void toggletag(const char *arg); +static void toggleview(const char *arg); +static void view(const char *arg); +static void cleanup(void); +static long getstate(Window w); +static void scan(void); +static void setup(void); +static int xerrorstart(Display *dsply, XErrorEvent *ee); +static Bool gettextprop(Window w, Atom atom, char *text, unsigned int size); +static void quit(const char *arg); +static int xerror(Display *dpy, XErrorEvent *ee); +static void arrange(void); +static void attach(Client *c); +static void detach(Client *c); +static void focus(Client *c); +static Bool isarrange(void (*func)()); +static Client *nexttiled(Client *c); +static void setmwfact(const char *arg); +static void tile(void); +static void zoom(const char *arg); + +#include "config.h" + +/* variables */ +static char stext[256]; +static double mwfact = MWFACT; +static int screen, sx, sy, sw, sh, wax, way, waw, wah; +static int (*xerrorxlib)(Display *, XErrorEvent *); +static unsigned int bh; +static unsigned int blw = 0; +static unsigned int bpos = BARPOS; +static unsigned int ltidx = 0; /* default */ +static unsigned int nlayouts = 0; +static unsigned int nrules = 0; +static unsigned int ntags; +static unsigned int numlockmask = 0; +static void (*handler[LASTEvent]) (XEvent *) = { + [ButtonPress] = buttonpress, + [ConfigureRequest] = configurerequest, + [ConfigureNotify] = configurenotify, + [DestroyNotify] = destroynotify, + [EnterNotify] = enternotify, + [LeaveNotify] = leavenotify, + [Expose] = expose, + [KeyPress] = keypress, + [MappingNotify] = mappingnotify, + [MapRequest] = maprequest, + [PropertyNotify] = propertynotify, + [UnmapNotify] = unmapnotify +}; +static Atom wmatom[WMLast], netatom[NetLast]; +static Bool otherwm, readin; +static Bool running = True; +static Bool *seltags; +static Bool selscreen = True; +static Client *clients = NULL; +static Client *sel = NULL; +static Client *stack = NULL; +static Cursor cursor[CurLast]; +static Display *dpy; +static DC dc = {0}; +static Window barwin, root; +static Regs *regs = NULL; + +static void +eprint(const char *errstr, ...) { + va_list ap; + + va_start(ap, errstr); + vfprintf(stderr, errstr, ap); + va_end(ap); + exit(EXIT_FAILURE); +} + +static void * +emallocz(unsigned int size) { + void *res = calloc(1, size); + + if(!res) + eprint("fatal: could not malloc() %u bytes\n", size); + return res; +} + +static void +spawn(const char *arg) { + static char *shell = NULL; + + if(!shell && !(shell = getenv("SHELL"))) + shell = "/bin/sh"; + if(!arg) + return; + /* The double-fork construct avoids zombie processes and keeps the code + * clean from stupid signal handlers. */ + if(fork() == 0) { + if(fork() == 0) { + if(dpy) + close(ConnectionNumber(dpy)); + setsid(); + execl(shell, shell, "-c", arg, (char *)NULL); + fprintf(stderr, "dwm: execl '%s -c %s'", shell, arg); + perror(" failed"); + } + exit(0); + } + wait(0); +} + +static void +drawsquare(Bool filled, Bool empty, unsigned long col[ColLast]) { + int x; + XGCValues gcv; + XRectangle r = { dc.x, dc.y, dc.w, dc.h }; + + gcv.foreground = col[ColFG]; + XChangeGC(dpy, dc.gc, GCForeground, &gcv); + x = (dc.font.ascent + dc.font.descent + 2) / 4; + r.x = dc.x + 1; + r.y = dc.y + 1; + if(filled) { + r.width = r.height = x + 1; + XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1); + } + else if(empty) { + r.width = r.height = x; + XDrawRectangles(dpy, dc.drawable, dc.gc, &r, 1); + } +} + +static unsigned long +initcolor(const char *colstr) { + Colormap cmap = DefaultColormap(dpy, screen); + XColor color; + + if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color)) + eprint("error, cannot allocate color '%s'\n", colstr); + return color.pixel; +} + +static void +initfont(const char *fontstr) { + char *def, **missing; + int i, n; + + missing = NULL; + if(dc.font.set) + XFreeFontSet(dpy, dc.font.set); + dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def); + if(missing) { + while(n--) + fprintf(stderr, "dwm: missing fontset: %s\n", missing[n]); + XFreeStringList(missing); + } + if(dc.font.set) { + XFontSetExtents *font_extents; + XFontStruct **xfonts; + char **font_names; + dc.font.ascent = dc.font.descent = 0; + font_extents = XExtentsOfFontSet(dc.font.set); + n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names); + for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) { + if(dc.font.ascent < (*xfonts)->ascent) + dc.font.ascent = (*xfonts)->ascent; + if(dc.font.descent < (*xfonts)->descent) + dc.font.descent = (*xfonts)->descent; + xfonts++; + } + } + else { + if(dc.font.xfont) + XFreeFont(dpy, dc.font.xfont); + dc.font.xfont = NULL; + if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr)) + || !(dc.font.xfont = XLoadQueryFont(dpy, "fixed"))) + eprint("error, cannot load font: '%s'\n", fontstr); + dc.font.ascent = dc.font.xfont->ascent; + dc.font.descent = dc.font.xfont->descent; + } + dc.font.height = dc.font.ascent + dc.font.descent; +} + +static Bool +isoccupied(unsigned int t) { + Client *c; + + for(c = clients; c; c = c->next) + if(c->tags[t]) + return True; + return False; +} + +static unsigned int +textnw(const char *text, unsigned int len) { + XRectangle r; + + if(dc.font.set) { + XmbTextExtents(dc.font.set, text, len, NULL, &r); + return r.width; + } + return XTextWidth(dc.font.xfont, text, len); +} + +static void +drawtext(const char *text, unsigned long col[ColLast]) { + int x, y, w, h; + static char buf[256]; + unsigned int len, olen; + XRectangle r = { dc.x, dc.y, dc.w, dc.h }; + + XSetForeground(dpy, dc.gc, col[ColBG]); + XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1); + if(!text) + return; + w = 0; + olen = len = strlen(text); + if(len >= sizeof buf) + len = sizeof buf - 1; + memcpy(buf, text, len); + buf[len] = 0; + h = dc.font.ascent + dc.font.descent; + y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent; + x = dc.x + (h / 2); + /* shorten text if necessary */ + while(len && (w = textnw(buf, len)) > dc.w - h) + buf[--len] = 0; + if(len < olen) { + if(len > 1) + buf[len - 1] = '.'; + if(len > 2) + buf[len - 2] = '.'; + if(len > 3) + buf[len - 3] = '.'; + } + if(w > dc.w) + return; /* too long */ + XSetForeground(dpy, dc.gc, col[ColFG]); + if(dc.font.set) + XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len); + else + XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len); +} + +static void +drawbar(void) { + int i, x; + + dc.x = dc.y = 0; + for(i = 0; i < ntags; i++) { + dc.w = textw(tags[i]); + if(seltags[i]) { + drawtext(tags[i], dc.sel); + drawsquare(sel && sel->tags[i], isoccupied(i), dc.sel); + } + else { + drawtext(tags[i], dc.norm); + drawsquare(sel && sel->tags[i], isoccupied(i), dc.norm); + } + dc.x += dc.w; + } + dc.w = blw; + drawtext(layouts[ltidx].symbol, dc.norm); + x = dc.x + dc.w; + dc.w = textw(stext); + dc.x = sw - dc.w; + if(dc.x < x) { + dc.x = x; + dc.w = sw - x; + } + drawtext(stext, dc.norm); + if((dc.w = dc.x - x) > bh) { + dc.x = x; + if(sel) { + drawtext(sel->name, dc.sel); + drawsquare(sel->ismax, sel->isfloating, dc.sel); + } + else + drawtext(NULL, dc.norm); + } + XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, sw, bh, 0, 0); + XSync(dpy, False); +} + +static void +initstyle(void) { + dc.norm[ColBorder] = initcolor(NORMBORDERCOLOR); + dc.norm[ColBG] = initcolor(NORMBGCOLOR); + dc.norm[ColFG] = initcolor(NORMFGCOLOR); + dc.sel[ColBorder] = initcolor(SELBORDERCOLOR); + dc.sel[ColBG] = initcolor(SELBGCOLOR); + dc.sel[ColFG] = initcolor(SELFGCOLOR); + initfont(FONT); + dc.h = bh = dc.font.height + 2; +} + +static void +initbar(void) { + XSetWindowAttributes wa; + + wa.override_redirect = 1; + wa.background_pixmap = ParentRelative; + wa.event_mask = ButtonPressMask | ExposureMask; + barwin = XCreateWindow(dpy, root, sx, sy, sw, bh, 0, + DefaultDepth(dpy, screen), CopyFromParent, DefaultVisual(dpy, screen), + CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa); + XDefineCursor(dpy, barwin, cursor[CurNormal]); + updatebarpos(); + XMapRaised(dpy, barwin); + strcpy(stext, "dwm-"VERSION); + dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen)); + dc.gc = XCreateGC(dpy, root, 0, 0); + XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter); + if(!dc.font.set) + XSetFont(dpy, dc.gc, dc.font.xfont->fid); +} + +static unsigned int +textw(const char *text) { + return textnw(text, strlen(text)) + dc.font.height; +} + +static void +togglebar(const char *arg) { + if(bpos == BarOff) + bpos = (BARPOS == BarOff) ? BarTop : BARPOS; + else + bpos = BarOff; + updatebarpos(); + arrange(); +} + +static void +updatebarpos(void) { + XEvent ev; + + wax = sx; + way = sy; + wah = sh; + waw = sw; + switch(bpos) { + default: + wah -= bh; + way += bh; + XMoveWindow(dpy, barwin, sx, sy); + break; + case BarBot: + wah -= bh; + XMoveWindow(dpy, barwin, sx, sy + wah); + break; + case BarOff: + XMoveWindow(dpy, barwin, sx, sy - bh); + break; + } + XSync(dpy, False); + while(XCheckMaskEvent(dpy, EnterWindowMask, &ev)); +} + +static void +attachstack(Client *c) { + c->snext = stack; + stack = c; +} + +static void +detachstack(Client *c) { + Client **tc; + + for(tc=&stack; *tc && *tc != c; tc=&(*tc)->snext); + *tc = c->snext; +} + +static void +grabbuttons(Client *c, Bool focused) { + XUngrabButton(dpy, AnyButton, AnyModifier, c->win); + + if(focused) { + XGrabButton(dpy, Button1, MODKEY, c->win, False, BUTTONMASK, + GrabModeAsync, GrabModeSync, None, None); + XGrabButton(dpy, Button1, MODKEY | LockMask, c->win, False, BUTTONMASK, + GrabModeAsync, GrabModeSync, None, None); + XGrabButton(dpy, Button1, MODKEY | numlockmask, c->win, False, BUTTONMASK, + GrabModeAsync, GrabModeSync, None, None); + XGrabButton(dpy, Button1, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK, + GrabModeAsync, GrabModeSync, None, None); + + XGrabButton(dpy, Button2, MODKEY, c->win, False, BUTTONMASK, + GrabModeAsync, GrabModeSync, None, None); + XGrabButton(dpy, Button2, MODKEY | LockMask, c->win, False, BUTTONMASK, + GrabModeAsync, GrabModeSync, None, None); + XGrabButton(dpy, Button2, MODKEY | numlockmask, c->win, False, BUTTONMASK, + GrabModeAsync, GrabModeSync, None, None); + XGrabButton(dpy, Button2, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK, + GrabModeAsync, GrabModeSync, None, None); + + XGrabButton(dpy, Button3, MODKEY, c->win, False, BUTTONMASK, + GrabModeAsync, GrabModeSync, None, None); + XGrabButton(dpy, Button3, MODKEY | LockMask, c->win, False, BUTTONMASK, + GrabModeAsync, GrabModeSync, None, None); + XGrabButton(dpy, Button3, MODKEY | numlockmask, c->win, False, BUTTONMASK, + GrabModeAsync, GrabModeSync, None, None); + XGrabButton(dpy, Button3, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK, + GrabModeAsync, GrabModeSync, None, None); + } + else + XGrabButton(dpy, AnyButton, AnyModifier, c->win, False, BUTTONMASK, + GrabModeAsync, GrabModeSync, None, None); +} + +static Bool +isprotodel(Client *c) { + int i, n; + Atom *protocols; + Bool ret = False; + + if(XGetWMProtocols(dpy, c->win, &protocols, &n)) { + for(i = 0; !ret && i < n; i++) + if(protocols[i] == wmatom[WMDelete]) + ret = True; + XFree(protocols); + } + return ret; +} + +static void +setclientstate(Client *c, long state) { + long data[] = {state, None}; + + XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32, + PropModeReplace, (unsigned char *)data, 2); +} + +static int +xerrordummy(Display *dsply, XErrorEvent *ee) { + return 0; +} + +static void +ban(Client *c) { + if(c->isbanned) + return; + XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y); + c->isbanned = True; +} + +static void +configure(Client *c) { + XConfigureEvent ce; + + ce.type = ConfigureNotify; + ce.display = dpy; + ce.event = c->win; + ce.window = c->win; + ce.x = c->x; + ce.y = c->y; + ce.width = c->w; + ce.height = c->h; + ce.border_width = c->border; + ce.above = None; + ce.override_redirect = False; + XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce); +} + +static void +killclient(const char *arg) { + XEvent ev; + + if(!sel) + return; + if(isprotodel(sel)) { + ev.type = ClientMessage; + ev.xclient.window = sel->win; + ev.xclient.message_type = wmatom[WMProtocols]; + ev.xclient.format = 32; + ev.xclient.data.l[0] = wmatom[WMDelete]; + ev.xclient.data.l[1] = CurrentTime; + XSendEvent(dpy, sel->win, False, NoEventMask, &ev); + } + else + XKillClient(dpy, sel->win); +} + +static void +manage(Window w, XWindowAttributes *wa) { + unsigned int i; + Client *c, *t = NULL; + Window trans; + Status rettrans; + XWindowChanges wc; + + c = emallocz(sizeof(Client)); + c->tags = emallocz(ntags * sizeof(Bool)); + c->win = w; + c->x = wa->x; + c->y = wa->y; + c->w = wa->width; + c->h = wa->height; + c->oldborder = wa->border_width; + if(c->w == sw && c->h == sh) { + c->x = sx; + c->y = sy; + c->border = wa->border_width; + } + else { + if(c->x + c->w + 2 * c->border > wax + waw) + c->x = wax + waw - c->w - 2 * c->border; + if(c->y + c->h + 2 * c->border > way + wah) + c->y = way + wah - c->h - 2 * c->border; + if(c->x < wax) + c->x = wax; + if(c->y < way) + c->y = way; + c->border = BORDERPX; + } + wc.border_width = c->border; + XConfigureWindow(dpy, w, CWBorderWidth, &wc); + XSetWindowBorder(dpy, w, dc.norm[ColBorder]); + configure(c); /* propagates border_width, if size doesn't change */ + updatesizehints(c); + XSelectInput(dpy, w, + StructureNotifyMask | PropertyChangeMask | EnterWindowMask); + grabbuttons(c, False); + updatetitle(c); + if((rettrans = XGetTransientForHint(dpy, w, &trans) == Success)) + for(t = clients; t && t->win != trans; t = t->next); + if(t) + for(i = 0; i < ntags; i++) + c->tags[i] = t->tags[i]; + applyrules(c); + if(!c->isfloating) + c->isfloating = (rettrans == Success) || c->isfixed; + attach(c); + attachstack(c); + XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h); /* some windows require this */ + ban(c); + XMapWindow(dpy, c->win); + setclientstate(c, NormalState); + arrange(); +} + +static void +resize(Client *c, int x, int y, int w, int h, Bool sizehints) { + double dx, dy, max, min, ratio; + XWindowChanges wc; + + if(sizehints) { + if(c->minay > 0 && c->maxay > 0 && (h - c->baseh) > 0 && (w - c->basew) > 0) { + dx = (double)(w - c->basew); + dy = (double)(h - c->baseh); + min = (double)(c->minax) / (double)(c->minay); + max = (double)(c->maxax) / (double)(c->maxay); + ratio = dx / dy; + if(max > 0 && min > 0 && ratio > 0) { + if(ratio < min) { + dy = (dx * min + dy) / (min * min + 1); + dx = dy * min; + w = (int)dx + c->basew; + h = (int)dy + c->baseh; + } + else if(ratio > max) { + dy = (dx * min + dy) / (max * max + 1); + dx = dy * min; + w = (int)dx + c->basew; + h = (int)dy + c->baseh; + } + } + } + if(c->minw && w < c->minw) + w = c->minw; + if(c->minh && h < c->minh) + h = c->minh; + if(c->maxw && w > c->maxw) + w = c->maxw; + if(c->maxh && h > c->maxh) + h = c->maxh; + if(c->incw) + w -= (w - c->basew) % c->incw; + if(c->inch) + h -= (h - c->baseh) % c->inch; + } + if(w <= 0 || h <= 0) + return; + /* offscreen appearance fixes */ + if(x > sw) + x = sw - w - 2 * c->border; + if(y > sh) + y = sh - h - 2 * c->border; + if(x + w + 2 * c->border < sx) + x = sx; + if(y + h + 2 * c->border < sy) + y = sy; + if(c->x != x || c->y != y || c->w != w || c->h != h) { + c->x = wc.x = x; + c->y = wc.y = y; + c->w = wc.width = w; + c->h = wc.height = h; + wc.border_width = c->border; + XConfigureWindow(dpy, c->win, CWX | CWY | CWWidth | CWHeight | CWBorderWidth, &wc); + configure(c); + XSync(dpy, False); + } +} + +static void +unban(Client *c) { + if(!c->isbanned) + return; + XMoveWindow(dpy, c->win, c->x, c->y); + c->isbanned = False; +} + +static void +unmanage(Client *c) { + XWindowChanges wc; + + wc.border_width = c->oldborder; + /* The server grab construct avoids race conditions. */ + XGrabServer(dpy); + XSetErrorHandler(xerrordummy); + XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */ + detach(c); + detachstack(c); + if(sel == c) + focus(NULL); + XUngrabButton(dpy, AnyButton, AnyModifier, c->win); + setclientstate(c, WithdrawnState); + free(c->tags); + free(c); + XSync(dpy, False); + XSetErrorHandler(xerror); + XUngrabServer(dpy); + arrange(); +} + +static void +updatesizehints(Client *c) { + long msize; + XSizeHints size; + + if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags) + size.flags = PSize; + c->flags = size.flags; + if(c->flags & PBaseSize) { + c->basew = size.base_width; + c->baseh = size.base_height; + } + else if(c->flags & PMinSize) { + c->basew = size.min_width; + c->baseh = size.min_height; + } + else + c->basew = c->baseh = 0; + if(c->flags & PResizeInc) { + c->incw = size.width_inc; + c->inch = size.height_inc; + } + else + c->incw = c->inch = 0; + if(c->flags & PMaxSize) { + c->maxw = size.max_width; + c->maxh = size.max_height; + } + else + c->maxw = c->maxh = 0; + if(c->flags & PMinSize) { + c->minw = size.min_width; + c->minh = size.min_height; + } + else if(c->flags & PBaseSize) { + c->minw = size.base_width; + c->minh = size.base_height; + } + else + c->minw = c->minh = 0; + if(c->flags & PAspect) { + c->minax = size.min_aspect.x; + c->maxax = size.max_aspect.x; + c->minay = size.min_aspect.y; + c->maxay = size.max_aspect.y; + } + else + c->minax = c->maxax = c->minay = c->maxay = 0; + c->isfixed = (c->maxw && c->minw && c->maxh && c->minh + && c->maxw == c->minw && c->maxh == c->minh); +} + +static void +updatetitle(Client *c) { + if(!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name)) + gettextprop(c->win, wmatom[WMName], c->name, sizeof c->name); +} + +static Client * +getclient(Window w) { + Client *c; + + for(c = clients; c && c->win != w; c = c->next); + return c; +} + +static void +movemouse(Client *c) { + int x1, y1, ocx, ocy, di, nx, ny; + unsigned int dui; + Window dummy; + XEvent ev; + + ocx = nx = c->x; + ocy = ny = c->y; + if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, + None, cursor[CurMove], CurrentTime) != GrabSuccess) + return; + c->ismax = False; + XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui); + for(;;) { + XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask, &ev); + switch (ev.type) { + case ButtonRelease: + XUngrabPointer(dpy, CurrentTime); + return; + case ConfigureRequest: + case Expose: + case MapRequest: + handler[ev.type](&ev); + break; + case MotionNotify: + XSync(dpy, False); + nx = ocx + (ev.xmotion.x - x1); + ny = ocy + (ev.xmotion.y - y1); + if(abs(wax + nx) < SNAP) + nx = wax; + else if(abs((wax + waw) - (nx + c->w + 2 * c->border)) < SNAP) + nx = wax + waw - c->w - 2 * c->border; + if(abs(way - ny) < SNAP) + ny = way; + else if(abs((way + wah) - (ny + c->h + 2 * c->border)) < SNAP) + ny = way + wah - c->h - 2 * c->border; + resize(c, nx, ny, c->w, c->h, False); + break; + } + } +} + +static void +resizemouse(Client *c) { + int ocx, ocy; + int nw, nh; + XEvent ev; + + ocx = c->x; + ocy = c->y; + if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, + None, cursor[CurResize], CurrentTime) != GrabSuccess) + return; + c->ismax = False; + XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->border - 1, c->h + c->border - 1); + for(;;) { + XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask , &ev); + switch(ev.type) { + case ButtonRelease: + XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, + c->w + c->border - 1, c->h + c->border - 1); + XUngrabPointer(dpy, CurrentTime); + while(XCheckMaskEvent(dpy, EnterWindowMask, &ev)); + return; + case ConfigureRequest: + case Expose: + case MapRequest: + handler[ev.type](&ev); + break; + case MotionNotify: + XSync(dpy, False); + if((nw = ev.xmotion.x - ocx - 2 * c->border + 1) <= 0) + nw = 1; + if((nh = ev.xmotion.y - ocy - 2 * c->border + 1) <= 0) + nh = 1; + resize(c, c->x, c->y, nw, nh, True); + break; + } + } +} + +static void +buttonpress(XEvent *e) { + unsigned int i, x; + Client *c; + XButtonPressedEvent *ev = &e->xbutton; + + if(barwin == ev->window) { + x = 0; + for(i = 0; i < ntags; i++) { + x += textw(tags[i]); + if(ev->x < x) { + if(ev->button == Button1) { + if(ev->state & MODKEY) + tag(tags[i]); + else + view(tags[i]); + } + else if(ev->button == Button3) { + if(ev->state & MODKEY) + toggletag(tags[i]); + else + toggleview(tags[i]); + } + return; + } + } + if((ev->x < x + blw) && ev->button == Button1) + setlayout(NULL); + } + else if((c = getclient(ev->window))) { + focus(c); + if(CLEANMASK(ev->state) != MODKEY) + return; + if(ev->button == Button1 && (isfloating() || c->isfloating)) { + restack(); + movemouse(c); + } + else if(ev->button == Button2) + zoom(NULL); + else if(ev->button == Button3 + && (isfloating() || c->isfloating) && !c->isfixed) + { + restack(); + resizemouse(c); + } + } +} + +static void +configurerequest(XEvent *e) { + Client *c; + XConfigureRequestEvent *ev = &e->xconfigurerequest; + XWindowChanges wc; + + if((c = getclient(ev->window))) { + c->ismax = False; + if(ev->value_mask & CWBorderWidth) + c->border = ev->border_width; + if(c->isfixed || c->isfloating || isfloating()) { + if(ev->value_mask & CWX) + c->x = ev->x; + if(ev->value_mask & CWY) + c->y = ev->y; + if(ev->value_mask & CWWidth) + c->w = ev->width; + if(ev->value_mask & CWHeight) + c->h = ev->height; + if((c->x + c->w) > sw && c->isfloating) + c->x = sw / 2 - c->w / 2; /* center in x direction */ + if((c->y + c->h) > sh && c->isfloating) + c->y = sh / 2 - c->h / 2; /* center in y direction */ + if((ev->value_mask & (CWX | CWY)) + && !(ev->value_mask & (CWWidth | CWHeight))) + configure(c); + if(isvisible(c)) + XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h); + } + else + configure(c); + } + else { + wc.x = ev->x; + wc.y = ev->y; + wc.width = ev->width; + wc.height = ev->height; + wc.border_width = ev->border_width; + wc.sibling = ev->above; + wc.stack_mode = ev->detail; + XConfigureWindow(dpy, ev->window, ev->value_mask, &wc); + } + XSync(dpy, False); +} + +static void +configurenotify(XEvent *e) { + XConfigureEvent *ev = &e->xconfigure; + + if (ev->window == root && (ev->width != sw || ev->height != sh)) { + sw = ev->width; + sh = ev->height; + XFreePixmap(dpy, dc.drawable); + dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen)); + XResizeWindow(dpy, barwin, sw, bh); + updatebarpos(); + arrange(); + } +} + +static void +destroynotify(XEvent *e) { + Client *c; + XDestroyWindowEvent *ev = &e->xdestroywindow; + + if((c = getclient(ev->window))) + unmanage(c); +} + +static void +enternotify(XEvent *e) { + Client *c; + XCrossingEvent *ev = &e->xcrossing; + + if(ev->mode != NotifyNormal || ev->detail == NotifyInferior) + return; + if((c = getclient(ev->window))) + focus(c); + else if(ev->window == root) { + selscreen = True; + focus(NULL); + } +} + +static void +expose(XEvent *e) { + XExposeEvent *ev = &e->xexpose; + + if(ev->count == 0) { + if(barwin == ev->window) + drawbar(); + } +} + +static void +keypress(XEvent *e) { + KEYS + unsigned int len = sizeof keys / sizeof keys[0]; + unsigned int i; + KeySym keysym; + XKeyEvent *ev = &e->xkey; + + keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0); + for(i = 0; i < len; i++) + if(keysym == keys[i].keysym + && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)) + { + if(keys[i].func) + keys[i].func(keys[i].arg); + } +} + +static void +leavenotify(XEvent *e) { + XCrossingEvent *ev = &e->xcrossing; + + if((ev->window == root) && !ev->same_screen) { + selscreen = False; + focus(NULL); + } +} + +static void +mappingnotify(XEvent *e) { + XMappingEvent *ev = &e->xmapping; + + XRefreshKeyboardMapping(ev); + if(ev->request == MappingKeyboard) + grabkeys(); +} + +static void +maprequest(XEvent *e) { + static XWindowAttributes wa; + XMapRequestEvent *ev = &e->xmaprequest; + + if(!XGetWindowAttributes(dpy, ev->window, &wa)) + return; + if(wa.override_redirect) + return; + if(!getclient(ev->window)) + manage(ev->window, &wa); +} + +static void +propertynotify(XEvent *e) { + Client *c; + Window trans; + XPropertyEvent *ev = &e->xproperty; + + if(ev->state == PropertyDelete) + return; /* ignore */ + if((c = getclient(ev->window))) { + switch (ev->atom) { + default: break; + case XA_WM_TRANSIENT_FOR: + XGetTransientForHint(dpy, c->win, &trans); + if(!c->isfloating && (c->isfloating = (getclient(trans) != NULL))) + arrange(); + break; + case XA_WM_NORMAL_HINTS: + updatesizehints(c); + break; + } + if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) { + updatetitle(c); + if(c == sel) + drawbar(); + } + } +} + +static void +unmapnotify(XEvent *e) { + Client *c; + XUnmapEvent *ev = &e->xunmap; + + if((c = getclient(ev->window))) + unmanage(c); +} + +static void +grabkeys(void) { + KEYS + unsigned int len = sizeof keys / sizeof keys[0]; + unsigned int i; + KeyCode code; + + XUngrabKey(dpy, AnyKey, AnyModifier, root); + for(i = 0; i < len; i++) { + code = XKeysymToKeycode(dpy, keys[i].keysym); + XGrabKey(dpy, code, keys[i].mod, root, True, + GrabModeAsync, GrabModeAsync); + XGrabKey(dpy, code, keys[i].mod | LockMask, root, True, + GrabModeAsync, GrabModeAsync); + XGrabKey(dpy, code, keys[i].mod | numlockmask, root, True, + GrabModeAsync, GrabModeAsync); + XGrabKey(dpy, code, keys[i].mod | numlockmask | LockMask, root, True, + GrabModeAsync, GrabModeAsync); + } +} + +static unsigned int +idxoftag(const char *tag) { + unsigned int i; + + for(i = 0; i < ntags; i++) + if(tags[i] == tag) + return i; + return 0; +} + +static void +floating(void) { /* default floating layout */ + Client *c; + + for(c = clients; c; c = c->next) + if(isvisible(c)) + resize(c, c->x, c->y, c->w, c->h, True); +} + +static void +applyrules(Client *c) { + static char buf[512]; + unsigned int i, j; + regmatch_t tmp; + Bool matched = False; + XClassHint ch = { 0 }; + + /* rule matching */ + XGetClassHint(dpy, c->win, &ch); + snprintf(buf, sizeof buf, "%s:%s:%s", + ch.res_class ? ch.res_class : "", + ch.res_name ? ch.res_name : "", c->name); + for(i = 0; i < nrules; i++) + if(regs[i].propregex && !regexec(regs[i].propregex, buf, 1, &tmp, 0)) { + c->isfloating = rules[i].isfloating; + for(j = 0; regs[i].tagregex && j < ntags; j++) { + if(!regexec(regs[i].tagregex, tags[j], 1, &tmp, 0)) { + matched = True; + c->tags[j] = True; + } + } + } + if(ch.res_class) + XFree(ch.res_class); + if(ch.res_name) + XFree(ch.res_name); + if(!matched) + for(i = 0; i < ntags; i++) + c->tags[i] = seltags[i]; +} + +static void +compileregs(void) { + unsigned int i; + regex_t *reg; + + if(regs) + return; + nrules = sizeof rules / sizeof rules[0]; + regs = emallocz(nrules * sizeof(Regs)); + for(i = 0; i < nrules; i++) { + if(rules[i].prop) { + reg = emallocz(sizeof(regex_t)); + if(regcomp(reg, rules[i].prop, REG_EXTENDED)) + free(reg); + else + regs[i].propregex = reg; + } + if(rules[i].tags) { + reg = emallocz(sizeof(regex_t)); + if(regcomp(reg, rules[i].tags, REG_EXTENDED)) + free(reg); + else + regs[i].tagregex = reg; + } + } +} + +static void +focusnext(const char *arg) { + Client *c; + + if(!sel) + return; + for(c = sel->next; c && !isvisible(c); c = c->next); + if(!c) + for(c = clients; c && !isvisible(c); c = c->next); + if(c) { + focus(c); + restack(); + } +} + +static void +focusprev(const char *arg) { + Client *c; + + if(!sel) + return; + for(c = sel->prev; c && !isvisible(c); c = c->prev); + if(!c) { + for(c = clients; c && c->next; c = c->next); + for(; c && !isvisible(c); c = c->prev); + } + if(c) { + focus(c); + restack(); + } +} + +static void +initlayouts(void) { + unsigned int i, w; + + nlayouts = sizeof layouts / sizeof layouts[0]; + for(blw = i = 0; i < nlayouts; i++) { + w = textw(layouts[i].symbol); + if(w > blw) + blw = w; + } +} + +static Bool +isfloating(void) { + return layouts[ltidx].arrange == floating; +} + +static Bool +isvisible(Client *c) { + unsigned int i; + + for(i = 0; i < ntags; i++) + if(c->tags[i] && seltags[i]) + return True; + return False; +} + +static void +restack(void) { + Client *c; + XEvent ev; + XWindowChanges wc; + + drawbar(); + if(!sel) + return; + if(sel->isfloating || isfloating()) + XRaiseWindow(dpy, sel->win); + if(!isfloating()) { + wc.stack_mode = Below; + wc.sibling = barwin; + if(!sel->isfloating) { + XConfigureWindow(dpy, sel->win, CWSibling | CWStackMode, &wc); + wc.sibling = sel->win; + } + for(c = nexttiled(clients); c; c = nexttiled(c->next)) { + if(c == sel) + continue; + XConfigureWindow(dpy, c->win, CWSibling | CWStackMode, &wc); + wc.sibling = c->win; + } + } + XSync(dpy, False); + while(XCheckMaskEvent(dpy, EnterWindowMask, &ev)); +} + +static void +setlayout(const char *arg) { + unsigned int i; + + if(!arg) { + if(++ltidx == nlayouts) + ltidx = 0;; + } + else { + for(i = 0; i < nlayouts; i++) + if(!strcmp(arg, layouts[i].symbol)) + break; + if(i == nlayouts) + return; + ltidx = i; + } + if(sel) + arrange(); + else + drawbar(); +} + +static void +tag(const char *arg) { + unsigned int i; + + if(!sel) + return; + for(i = 0; i < ntags; i++) + sel->tags[i] = arg == NULL; + i = idxoftag(arg); + if(i >= 0 && i < ntags) + sel->tags[i] = True; + arrange(); +} + +static void +togglefloating(const char *arg) { + if(!sel) + return; + sel->isfloating = !sel->isfloating; + if(sel->isfloating) + resize(sel, sel->x, sel->y, sel->w, sel->h, True); + arrange(); +} + +static void +togglemax(const char *arg) { + XEvent ev; + + if(!sel || (!isfloating() && !sel->isfloating) || sel->isfixed) + return; + if((sel->ismax = !sel->ismax)) { + sel->rx = sel->x; + sel->ry = sel->y; + sel->rw = sel->w; + sel->rh = sel->h; + resize(sel, wax, way, waw - 2 * sel->border, wah - 2 * sel->border, True); + } + else + resize(sel, sel->rx, sel->ry, sel->rw, sel->rh, True); + drawbar(); + while(XCheckMaskEvent(dpy, EnterWindowMask, &ev)); +} + +static void +toggletag(const char *arg) { + unsigned int i, j; + + if(!sel) + return; + i = idxoftag(arg); + sel->tags[i] = !sel->tags[i]; + for(j = 0; j < ntags && !sel->tags[j]; j++); + if(j == ntags) + sel->tags[i] = True; + arrange(); +} + +static void +toggleview(const char *arg) { + unsigned int i, j; + + i = idxoftag(arg); + seltags[i] = !seltags[i]; + for(j = 0; j < ntags && !seltags[j]; j++); + if(j == ntags) + seltags[i] = True; /* cannot toggle last view */ + arrange(); +} + +static void +view(const char *arg) { + unsigned int i; + + for(i = 0; i < ntags; i++) + seltags[i] = arg == NULL; + i = idxoftag(arg); + if(i >= 0 && i < ntags) + seltags[i] = True; + arrange(); +} + +static void +cleanup(void) { + close(STDIN_FILENO); + while(stack) { + unban(stack); + unmanage(stack); + } + if(dc.font.set) + XFreeFontSet(dpy, dc.font.set); + else + XFreeFont(dpy, dc.font.xfont); + XUngrabKey(dpy, AnyKey, AnyModifier, root); + XFreePixmap(dpy, dc.drawable); + XFreeGC(dpy, dc.gc); + XDestroyWindow(dpy, barwin); + XFreeCursor(dpy, cursor[CurNormal]); + XFreeCursor(dpy, cursor[CurResize]); + XFreeCursor(dpy, cursor[CurMove]); + XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime); + XSync(dpy, False); + free(seltags); +} + +static long +getstate(Window w) { + int format, status; + long result = -1; + unsigned char *p = NULL; + unsigned long n, extra; + Atom real; + + status = XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState], + &real, &format, &n, &extra, (unsigned char **)&p); + if(status != Success) + return -1; + if(n != 0) + result = *p; + XFree(p); + return result; +} + +static void +scan(void) { + unsigned int i, num; + Window *wins, d1, d2; + XWindowAttributes wa; + + wins = NULL; + if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) { + for(i = 0; i < num; i++) { + if(!XGetWindowAttributes(dpy, wins[i], &wa) + || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1)) + continue; + if(wa.map_state == IsViewable || getstate(wins[i]) == IconicState) + manage(wins[i], &wa); + } + for(i = 0; i < num; i++) { /* now the transients */ + if(!XGetWindowAttributes(dpy, wins[i], &wa)) + continue; + if(XGetTransientForHint(dpy, wins[i], &d1) + && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState)) + manage(wins[i], &wa); + } + } + if(wins) + XFree(wins); +} + +static void +setup(void) { + int i, j; + unsigned int mask; + Window w; + XModifierKeymap *modmap; + XSetWindowAttributes wa; + + /* init atoms */ + wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False); + wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False); + wmatom[WMName] = XInternAtom(dpy, "WM_NAME", False); + wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False); + netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False); + netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False); + XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32, + PropModeReplace, (unsigned char *) netatom, NetLast); + /* init cursors */ + cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr); + cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing); + cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur); + /* init modifier map */ + modmap = XGetModifierMapping(dpy); + for (i = 0; i < 8; i++) + for (j = 0; j < modmap->max_keypermod; j++) { + if(modmap->modifiermap[i * modmap->max_keypermod + j] + == XKeysymToKeycode(dpy, XK_Num_Lock)) + numlockmask = (1 << i); + } + XFreeModifiermap(modmap); + /* select for events */ + wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask + | EnterWindowMask | LeaveWindowMask | StructureNotifyMask; + wa.cursor = cursor[CurNormal]; + XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa); + XSelectInput(dpy, root, wa.event_mask); + grabkeys(); + compileregs(); + for(ntags = 0; tags[ntags]; ntags++); + seltags = emallocz(sizeof(Bool) * ntags); + seltags[0] = True; + /* geometry */ + sx = sy = 0; + sw = DisplayWidth(dpy, screen); + sh = DisplayHeight(dpy, screen); + initstyle(); + initlayouts(); + initbar(); + /* multihead support */ + selscreen = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask); +} + +/* + * Startup Error handler to check if another window manager + * is already running. + */ +static int +xerrorstart(Display *dsply, XErrorEvent *ee) { + otherwm = True; + return -1; +} + +static Bool +gettextprop(Window w, Atom atom, char *text, unsigned int size) { + char **list = NULL; + int n; + XTextProperty name; + + if(!text || size == 0) + return False; + text[0] = '\0'; + XGetTextProperty(dpy, w, &name, atom); + if(!name.nitems) + return False; + if(name.encoding == XA_STRING) + strncpy(text, (char *)name.value, size - 1); + else { + if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success + && n > 0 && *list) + { + strncpy(text, *list, size - 1); + XFreeStringList(list); + } + } + text[size - 1] = '\0'; + XFree(name.value); + return True; +} + +static void +quit(const char *arg) { + readin = running = False; +} + +/* There's no way to check accesses to destroyed windows, thus those cases are + * ignored (especially on UnmapNotify's). Other types of errors call Xlibs + * default error handler, which may call exit. + */ +static int +xerror(Display *dpy, XErrorEvent *ee) { + if(ee->error_code == BadWindow + || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch) + || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable) + || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable) + || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable) + || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch) + || (ee->request_code == X_GrabKey && ee->error_code == BadAccess) + || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable)) + return 0; + fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n", + ee->request_code, ee->error_code); + return xerrorxlib(dpy, ee); /* may call exit */ +} + +static void +arrange(void) { + Client *c; + + for(c = clients; c; c = c->next) + if(isvisible(c)) + unban(c); + else + ban(c); + layouts[ltidx].arrange(); + focus(NULL); + restack(); +} + +static void +attach(Client *c) { + if(clients) + clients->prev = c; + c->next = clients; + clients = c; +} + +static void +detach(Client *c) { + if(c->prev) + c->prev->next = c->next; + if(c->next) + c->next->prev = c->prev; + if(c == clients) + clients = c->next; + c->next = c->prev = NULL; +} + +static void +focus(Client *c) { + if((!c && selscreen) || (c && !isvisible(c))) + for(c = stack; c && !isvisible(c); c = c->snext); + if(sel && sel != c) { + grabbuttons(sel, False); + XSetWindowBorder(dpy, sel->win, dc.norm[ColBorder]); + } + if(c) { + detachstack(c); + attachstack(c); + grabbuttons(c, True); + } + sel = c; + drawbar(); + if(!selscreen) + return; + if(c) { + XSetWindowBorder(dpy, c->win, dc.sel[ColBorder]); + XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime); + } + else + XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime); +} + +static Bool +isarrange(void (*func)()) +{ + return func == layouts[ltidx].arrange; +} + +static Client * +nexttiled(Client *c) { + for(; c && (c->isfloating || !isvisible(c)); c = c->next); + return c; +} + +static void +setmwfact(const char *arg) { + double delta; + + if(!isarrange(tile)) + return; + /* arg handling, manipulate mwfact */ + if(arg == NULL) + mwfact = MWFACT; + else if(1 == sscanf(arg, "%lf", &delta)) { + if(arg[0] != '+' && arg[0] != '-') + mwfact = delta; + else + mwfact += delta; + if(mwfact < 0.1) + mwfact = 0.1; + else if(mwfact > 0.9) + mwfact = 0.9; + } + arrange(); +} + +static void +tile(void) { + unsigned int i, n, nx, ny, nw, nh, mw, th; + Client *c; + + for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next)) + n++; + + /* window geoms */ + mw = (n == 1) ? waw : mwfact * waw; + th = (n > 1) ? wah / (n - 1) : 0; + if(n > 1 && th < bh) + th = wah; + + nx = wax; + ny = way; + for(i = 0, c = nexttiled(clients); c; c = nexttiled(c->next), i++) { + c->ismax = False; + if(i == 0) { /* master */ + nw = mw - 2 * c->border; + nh = wah - 2 * c->border; + } + else { /* tile window */ + if(i == 1) { + ny = way; + nx += mw; + } + nw = waw - mw - 2 * c->border; + if(i + 1 == n) /* remainder */ + nh = (way + wah) - ny - 2 * c->border; + else + nh = th - 2 * c->border; + } + resize(c, nx, ny, nw, nh, RESIZEHINTS); + if(n > 1 && th != wah) + ny += nh + 2 * c->border; + } +} + +static void +zoom(const char *arg) { + Client *c; + + if(!sel || !isarrange(tile) || sel->isfloating) + return; + if((c = sel) == nexttiled(clients)) + if(!(c = nexttiled(c->next))) + return; + detach(c); + attach(c); + focus(c); + arrange(); +} + +int +main(int argc, char *argv[]) { + char *p; + int r, xfd; + fd_set rd; + XEvent ev; + + if(argc == 2 && !strcmp("-v", argv[1])) + eprint("dwm-"VERSION", © 2006-2007 A. R. Garbe, S. van Dijk, J. Salmi, P. Hruby, S. Nagy\n"); + else if(argc != 1) + eprint("usage: dwm [-v]\n"); + setlocale(LC_CTYPE, ""); + if(!(dpy = XOpenDisplay(0))) + eprint("dwm: cannot open display\n"); + xfd = ConnectionNumber(dpy); + screen = DefaultScreen(dpy); + root = RootWindow(dpy, screen); + otherwm = False; + XSetErrorHandler(xerrorstart); + /* this causes an error if some other window manager is running */ + XSelectInput(dpy, root, SubstructureRedirectMask); + XSync(dpy, False); + if(otherwm) + eprint("dwm: another window manager is already running\n"); + + XSync(dpy, False); + XSetErrorHandler(NULL); + xerrorxlib = XSetErrorHandler(xerror); + XSync(dpy, False); + setup(); + drawbar(); + scan(); + + /* main event loop, also reads status text from stdin */ + XSync(dpy, False); + readin = True; + while(running) { + FD_ZERO(&rd); + if(readin) + FD_SET(STDIN_FILENO, &rd); + FD_SET(xfd, &rd); + if(select(xfd + 1, &rd, NULL, NULL, NULL) == -1) { + if(errno == EINTR) + continue; + eprint("select failed\n"); + } + if(FD_ISSET(STDIN_FILENO, &rd)) { + switch(r = read(STDIN_FILENO, stext, sizeof stext - 1)) { + case -1: + strncpy(stext, strerror(errno), sizeof stext - 1); + stext[sizeof stext - 1] = '\0'; + readin = False; + break; + case 0: + strncpy(stext, "EOF", 4); + readin = False; + break; + default: + for(stext[r] = '\0', p = stext + strlen(stext) - 1; p >= stext && *p == '\n'; *p-- = '\0'); + for(; p >= stext && *p != '\n'; --p); + if(p > stext) + strncpy(stext, p + 1, sizeof stext); + } + drawbar(); + } + while(XPending(dpy)) { + XNextEvent(dpy, &ev); + if(handler[ev.type]) + (handler[ev.type])(&ev); /* call handler */ + } + } + cleanup(); + XCloseDisplay(dpy); + return 0; +} diff --git a/dwm.h b/dwm.h deleted file mode 100644 index 8c9a141..0000000 --- a/dwm.h +++ /dev/null @@ -1,147 +0,0 @@ -/* See LICENSE file for copyright and license details. - * - * dynamic window manager is designed like any other X client as well. It is - * driven through handling X events. In contrast to other X clients, a window - * manager selects for SubstructureRedirectMask on the root window, to receive - * events about window (dis-)appearance. Only one X connection at a time is - * allowed to select for this event mask. - * - * Calls to fetch an X event from the event queue are blocking. Due reading - * status text from standard input, a select()-driven main loop has been - * implemented which selects for reads on the X connection and STDIN_FILENO to - * handle all data smoothly. The event handlers of dwm are organized in an - * array which is accessed whenever a new event has been fetched. This allows - * event dispatching in O(1) time. - * - * Each child of the root window is called a client, except windows which have - * set the override_redirect flag. Clients are organized in a global - * doubly-linked client list, the focus history is remembered through a global - * stack list. Each client contains an array of Bools of the same size as the - * global tags array to indicate the tags of a client. For each client dwm - * creates a small title window, which is resized whenever the (_NET_)WM_NAME - * properties are updated or the client is moved/resized. - * - * Keys and tagging rules are organized as arrays and defined in the config.h - * file. These arrays are kept static in event.o and tag.o respectively, - * because no other part of dwm needs access to them. The current layout is - * represented by the lt pointer. - * - * To understand everything else, start reading main.c:main(). - */ - -#include "config.h" -#include - -/* mask shorthands, used in event.c and client.c */ -#define BUTTONMASK (ButtonPressMask | ButtonReleaseMask) - -enum { BarTop, BarBot, BarOff }; /* bar position */ -enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */ -enum { ColBorder, ColFG, ColBG, ColLast }; /* color */ -enum { NetSupported, NetWMName, NetLast }; /* EWMH atoms */ -enum { WMProtocols, WMDelete, WMName, WMState, WMLast };/* default atoms */ - -typedef struct Client Client; -struct Client { - char name[256]; - int x, y, w, h; - int rx, ry, rw, rh; /* revert geometry */ - int basew, baseh, incw, inch, maxw, maxh, minw, minh; - int minax, maxax, minay, maxay; - long flags; - unsigned int border, oldborder; - Bool isbanned, isfixed, ismax, isfloating; - Bool *tags; - Client *next; - Client *prev; - Client *snext; - Window win; -}; - -typedef struct { - int x, y, w, h; - unsigned long norm[ColLast]; - unsigned long sel[ColLast]; - Drawable drawable; - GC gc; - struct { - int ascent; - int descent; - int height; - XFontSet set; - XFontStruct *xfont; - } font; -} DC; /* draw context */ - -extern const char *tags[]; /* all tags */ -extern char stext[256]; /* status text */ -extern int screen, sx, sy, sw, sh; /* screen geometry */ -extern int wax, way, wah, waw; /* windowarea geometry */ -extern unsigned int bh, blw, bpos; /* bar height, bar layout label width, bar position */ -extern unsigned int ntags, numlockmask; /* number of tags, numlock mask */ -extern void (*handler[LASTEvent])(XEvent *); /* event handler */ -extern Atom wmatom[WMLast], netatom[NetLast]; -extern Bool selscreen, *seltags; /* seltags is array of Bool */ -extern Client *clients, *sel, *stack; /* global client list and stack */ -extern Cursor cursor[CurLast]; -extern DC dc; /* global draw context */ -extern Display *dpy; -extern Window root, barwin; - -/* bar.c */ -void drawbar(void); /* draw the bar */ -void initbar(void); /* initializes the bar */ -void initstyle(void); /* initializes colors and font */ -unsigned int textw(const char *text); /* return the width of text in px*/ -void togglebar(const char *arg); /* shows/hides the bar */ -void updatebarpos(void); /* updates the bar position */ - -/* client.c */ -void attach(Client *c); /* attaches c to global client list */ -void ban(Client *c); /* bans c */ -void configure(Client *c); /* send synthetic configure event */ -void detach(Client *c); /* detaches c from global client list */ -void focus(Client *c); /* focus c if visible && !NULL, or focus top visible */ -void killclient(const char *arg); /* kill sel nicely */ -void manage(Window w, XWindowAttributes *wa); /* manage new client */ -void resize(Client *c, int x, int y, - int w, int h, Bool sizehints); /* resize with given coordinates c*/ -void unban(Client *c); /* unbans c */ -void unmanage(Client *c); /* unmanage c */ -void updatesizehints(Client *c); /* update the size hint variables of c */ -void updatetitle(Client *c); /* update the name of c */ - -/* event.c */ -void grabkeys(void); /* grab all keys defined in config.h */ - -/* main.c */ -Bool gettextprop(Window w, Atom atom, - char *text, unsigned int size); /* return text property, UTF-8 compliant */ -void quit(const char *arg); /* quit dwm nicely */ -int xerror(Display *dsply, XErrorEvent *ee); /* dwm's X error handler */ - -/* screen.c */ -void applyrules(Client *c); /* applies rules to c */ -void arrange(void); /* arranges all windows depending on the layout in use */ -void compileregs(void); /* initialize regexps of rules defined in config.h */ -void focusnext(const char *arg); /* focuses next visible client */ -void focusprev(const char *arg); /* focuses prev visible client */ -const char *getsymbol(void); /* returns symbol of enabled layout */ -void initlayouts(void); /* initialize layout array */ -Bool isarrange(void (*func)()); /* returns True if func is the layout function in use */ -Bool isfloating(void); /* returns True if floating layout is enabled */ -Bool isvisible(Client *c); /* returns True if client is visible */ -Client *nexttiled(Client *c); /* returns tiled successor of c */ -void restack(void); /* restores z layers of all clients */ -void setlayout(const char *arg); /* sets layout, NULL means next layout */ -void tag(const char *arg); /* tags sel with arg's index */ -void togglefloating(const char *arg); /* toggles sel between floating/tiled state */ -void togglemax(const char *arg); /* toggles maximization of floating client */ -void toggletag(const char *arg); /* toggles sel tags with arg's index */ -void toggleview(const char *arg); /* toggles the tag with arg's index (in)visible */ -void view(const char *arg); /* views the tag with arg's index */ - -/* util.c */ -void *emallocz(unsigned int size); /* allocates zero-initialized memory, exits on error */ -void eprint(const char *errstr, ...); /* prints errstr and exits with 1 */ -void spawn(const char *arg); /* forks a new subprocess with arg's cmd */ diff --git a/event.c b/event.c deleted file mode 100644 index 16201f3..0000000 --- a/event.c +++ /dev/null @@ -1,375 +0,0 @@ -/* See LICENSE file for copyright and license details. */ -#include "dwm.h" -#include -#include -#include -#include - -/* static */ - -typedef struct { - unsigned long mod; - KeySym keysym; - void (*func)(const char *arg); - const char *arg; -} Key; - -#define CLEANMASK(mask) (mask & ~(numlockmask | LockMask)) -#define MOUSEMASK (BUTTONMASK | PointerMotionMask) - -static Client * -getclient(Window w) { - Client *c; - - for(c = clients; c && c->win != w; c = c->next); - return c; -} - -static void -movemouse(Client *c) { - int x1, y1, ocx, ocy, di, nx, ny; - unsigned int dui; - Window dummy; - XEvent ev; - - ocx = nx = c->x; - ocy = ny = c->y; - if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, - None, cursor[CurMove], CurrentTime) != GrabSuccess) - return; - c->ismax = False; - XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui); - for(;;) { - XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask, &ev); - switch (ev.type) { - case ButtonRelease: - XUngrabPointer(dpy, CurrentTime); - return; - case ConfigureRequest: - case Expose: - case MapRequest: - handler[ev.type](&ev); - break; - case MotionNotify: - XSync(dpy, False); - nx = ocx + (ev.xmotion.x - x1); - ny = ocy + (ev.xmotion.y - y1); - if(abs(wax + nx) < SNAP) - nx = wax; - else if(abs((wax + waw) - (nx + c->w + 2 * c->border)) < SNAP) - nx = wax + waw - c->w - 2 * c->border; - if(abs(way - ny) < SNAP) - ny = way; - else if(abs((way + wah) - (ny + c->h + 2 * c->border)) < SNAP) - ny = way + wah - c->h - 2 * c->border; - resize(c, nx, ny, c->w, c->h, False); - break; - } - } -} - -static void -resizemouse(Client *c) { - int ocx, ocy; - int nw, nh; - XEvent ev; - - ocx = c->x; - ocy = c->y; - if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, - None, cursor[CurResize], CurrentTime) != GrabSuccess) - return; - c->ismax = False; - XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->border - 1, c->h + c->border - 1); - for(;;) { - XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask , &ev); - switch(ev.type) { - case ButtonRelease: - XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, - c->w + c->border - 1, c->h + c->border - 1); - XUngrabPointer(dpy, CurrentTime); - while(XCheckMaskEvent(dpy, EnterWindowMask, &ev)); - return; - case ConfigureRequest: - case Expose: - case MapRequest: - handler[ev.type](&ev); - break; - case MotionNotify: - XSync(dpy, False); - if((nw = ev.xmotion.x - ocx - 2 * c->border + 1) <= 0) - nw = 1; - if((nh = ev.xmotion.y - ocy - 2 * c->border + 1) <= 0) - nh = 1; - resize(c, c->x, c->y, nw, nh, True); - break; - } - } -} - -static void -buttonpress(XEvent *e) { - unsigned int i, x; - Client *c; - XButtonPressedEvent *ev = &e->xbutton; - - if(barwin == ev->window) { - x = 0; - for(i = 0; i < ntags; i++) { - x += textw(tags[i]); - if(ev->x < x) { - if(ev->button == Button1) { - if(ev->state & MODKEY) - tag(tags[i]); - else - view(tags[i]); - } - else if(ev->button == Button3) { - if(ev->state & MODKEY) - toggletag(tags[i]); - else - toggleview(tags[i]); - } - return; - } - } - if((ev->x < x + blw) && ev->button == Button1) - setlayout(NULL); - } - else if((c = getclient(ev->window))) { - focus(c); - if(CLEANMASK(ev->state) != MODKEY) - return; - if(ev->button == Button1 && (isfloating() || c->isfloating)) { - restack(); - movemouse(c); - } - else if(ev->button == Button2) - zoom(NULL); - else if(ev->button == Button3 - && (isfloating() || c->isfloating) && !c->isfixed) - { - restack(); - resizemouse(c); - } - } -} - -static void -configurerequest(XEvent *e) { - Client *c; - XConfigureRequestEvent *ev = &e->xconfigurerequest; - XWindowChanges wc; - - if((c = getclient(ev->window))) { - c->ismax = False; - if(ev->value_mask & CWBorderWidth) - c->border = ev->border_width; - if(c->isfixed || c->isfloating || isfloating()) { - if(ev->value_mask & CWX) - c->x = ev->x; - if(ev->value_mask & CWY) - c->y = ev->y; - if(ev->value_mask & CWWidth) - c->w = ev->width; - if(ev->value_mask & CWHeight) - c->h = ev->height; - if((c->x + c->w) > sw && c->isfloating) - c->x = sw / 2 - c->w / 2; /* center in x direction */ - if((c->y + c->h) > sh && c->isfloating) - c->y = sh / 2 - c->h / 2; /* center in y direction */ - if((ev->value_mask & (CWX | CWY)) - && !(ev->value_mask & (CWWidth | CWHeight))) - configure(c); - if(isvisible(c)) - XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h); - } - else - configure(c); - } - else { - wc.x = ev->x; - wc.y = ev->y; - wc.width = ev->width; - wc.height = ev->height; - wc.border_width = ev->border_width; - wc.sibling = ev->above; - wc.stack_mode = ev->detail; - XConfigureWindow(dpy, ev->window, ev->value_mask, &wc); - } - XSync(dpy, False); -} - -static void -configurenotify(XEvent *e) { - XConfigureEvent *ev = &e->xconfigure; - - if (ev->window == root && (ev->width != sw || ev->height != sh)) { - sw = ev->width; - sh = ev->height; - XFreePixmap(dpy, dc.drawable); - dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen)); - XResizeWindow(dpy, barwin, sw, bh); - updatebarpos(); - arrange(); - } -} - -static void -destroynotify(XEvent *e) { - Client *c; - XDestroyWindowEvent *ev = &e->xdestroywindow; - - if((c = getclient(ev->window))) - unmanage(c); -} - -static void -enternotify(XEvent *e) { - Client *c; - XCrossingEvent *ev = &e->xcrossing; - - if(ev->mode != NotifyNormal || ev->detail == NotifyInferior) - return; - if((c = getclient(ev->window))) - focus(c); - else if(ev->window == root) { - selscreen = True; - focus(NULL); - } -} - -static void -expose(XEvent *e) { - XExposeEvent *ev = &e->xexpose; - - if(ev->count == 0) { - if(barwin == ev->window) - drawbar(); - } -} - -static void -keypress(XEvent *e) { - KEYS - unsigned int len = sizeof keys / sizeof keys[0]; - unsigned int i; - KeySym keysym; - XKeyEvent *ev = &e->xkey; - - keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0); - for(i = 0; i < len; i++) - if(keysym == keys[i].keysym - && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)) - { - if(keys[i].func) - keys[i].func(keys[i].arg); - } -} - -static void -leavenotify(XEvent *e) { - XCrossingEvent *ev = &e->xcrossing; - - if((ev->window == root) && !ev->same_screen) { - selscreen = False; - focus(NULL); - } -} - -static void -mappingnotify(XEvent *e) { - XMappingEvent *ev = &e->xmapping; - - XRefreshKeyboardMapping(ev); - if(ev->request == MappingKeyboard) - grabkeys(); -} - -static void -maprequest(XEvent *e) { - static XWindowAttributes wa; - XMapRequestEvent *ev = &e->xmaprequest; - - if(!XGetWindowAttributes(dpy, ev->window, &wa)) - return; - if(wa.override_redirect) - return; - if(!getclient(ev->window)) - manage(ev->window, &wa); -} - -static void -propertynotify(XEvent *e) { - Client *c; - Window trans; - XPropertyEvent *ev = &e->xproperty; - - if(ev->state == PropertyDelete) - return; /* ignore */ - if((c = getclient(ev->window))) { - switch (ev->atom) { - default: break; - case XA_WM_TRANSIENT_FOR: - XGetTransientForHint(dpy, c->win, &trans); - if(!c->isfloating && (c->isfloating = (getclient(trans) != NULL))) - arrange(); - break; - case XA_WM_NORMAL_HINTS: - updatesizehints(c); - break; - } - if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) { - updatetitle(c); - if(c == sel) - drawbar(); - } - } -} - -static void -unmapnotify(XEvent *e) { - Client *c; - XUnmapEvent *ev = &e->xunmap; - - if((c = getclient(ev->window))) - unmanage(c); -} - -/* extern */ - -void (*handler[LASTEvent]) (XEvent *) = { - [ButtonPress] = buttonpress, - [ConfigureRequest] = configurerequest, - [ConfigureNotify] = configurenotify, - [DestroyNotify] = destroynotify, - [EnterNotify] = enternotify, - [LeaveNotify] = leavenotify, - [Expose] = expose, - [KeyPress] = keypress, - [MappingNotify] = mappingnotify, - [MapRequest] = maprequest, - [PropertyNotify] = propertynotify, - [UnmapNotify] = unmapnotify -}; - -void -grabkeys(void) { - KEYS - unsigned int len = sizeof keys / sizeof keys[0]; - unsigned int i; - KeyCode code; - - XUngrabKey(dpy, AnyKey, AnyModifier, root); - for(i = 0; i < len; i++) { - code = XKeysymToKeycode(dpy, keys[i].keysym); - XGrabKey(dpy, code, keys[i].mod, root, True, - GrabModeAsync, GrabModeAsync); - XGrabKey(dpy, code, keys[i].mod | LockMask, root, True, - GrabModeAsync, GrabModeAsync); - XGrabKey(dpy, code, keys[i].mod | numlockmask, root, True, - GrabModeAsync, GrabModeAsync); - XGrabKey(dpy, code, keys[i].mod | numlockmask | LockMask, root, True, - GrabModeAsync, GrabModeAsync); - } -} diff --git a/main.c b/main.c deleted file mode 100644 index 1e1ad4c..0000000 --- a/main.c +++ /dev/null @@ -1,296 +0,0 @@ -/* See LICENSE file for copyright and license details. */ -#include "dwm.h" -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -/* extern */ - -char stext[256]; -int screen, sx, sy, sw, sh, wax, way, waw, wah; -unsigned int ntags; -unsigned int numlockmask = 0; -Atom wmatom[WMLast], netatom[NetLast]; -Bool *seltags; -Bool selscreen = True; -Client *clients = NULL; -Client *sel = NULL; -Client *stack = NULL; -Cursor cursor[CurLast]; -Display *dpy; -Window root; - -/* static */ - -static int (*xerrorxlib)(Display *, XErrorEvent *); -static Bool otherwm, readin; -static Bool running = True; - -static void -cleanup(void) { - close(STDIN_FILENO); - while(stack) { - unban(stack); - unmanage(stack); - } - if(dc.font.set) - XFreeFontSet(dpy, dc.font.set); - else - XFreeFont(dpy, dc.font.xfont); - XUngrabKey(dpy, AnyKey, AnyModifier, root); - XFreePixmap(dpy, dc.drawable); - XFreeGC(dpy, dc.gc); - XDestroyWindow(dpy, barwin); - XFreeCursor(dpy, cursor[CurNormal]); - XFreeCursor(dpy, cursor[CurResize]); - XFreeCursor(dpy, cursor[CurMove]); - XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime); - XSync(dpy, False); - free(seltags); -} - -static long -getstate(Window w) { - int format, status; - long result = -1; - unsigned char *p = NULL; - unsigned long n, extra; - Atom real; - - status = XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState], - &real, &format, &n, &extra, (unsigned char **)&p); - if(status != Success) - return -1; - if(n != 0) - result = *p; - XFree(p); - return result; -} - -static void -scan(void) { - unsigned int i, num; - Window *wins, d1, d2; - XWindowAttributes wa; - - wins = NULL; - if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) { - for(i = 0; i < num; i++) { - if(!XGetWindowAttributes(dpy, wins[i], &wa) - || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1)) - continue; - if(wa.map_state == IsViewable || getstate(wins[i]) == IconicState) - manage(wins[i], &wa); - } - for(i = 0; i < num; i++) { /* now the transients */ - if(!XGetWindowAttributes(dpy, wins[i], &wa)) - continue; - if(XGetTransientForHint(dpy, wins[i], &d1) - && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState)) - manage(wins[i], &wa); - } - } - if(wins) - XFree(wins); -} - -static void -setup(void) { - int i, j; - unsigned int mask; - Window w; - XModifierKeymap *modmap; - XSetWindowAttributes wa; - - /* init atoms */ - wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False); - wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False); - wmatom[WMName] = XInternAtom(dpy, "WM_NAME", False); - wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False); - netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False); - netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False); - XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32, - PropModeReplace, (unsigned char *) netatom, NetLast); - /* init cursors */ - cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr); - cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing); - cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur); - /* init modifier map */ - modmap = XGetModifierMapping(dpy); - for (i = 0; i < 8; i++) - for (j = 0; j < modmap->max_keypermod; j++) { - if(modmap->modifiermap[i * modmap->max_keypermod + j] - == XKeysymToKeycode(dpy, XK_Num_Lock)) - numlockmask = (1 << i); - } - XFreeModifiermap(modmap); - /* select for events */ - wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask - | EnterWindowMask | LeaveWindowMask | StructureNotifyMask; - wa.cursor = cursor[CurNormal]; - XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa); - XSelectInput(dpy, root, wa.event_mask); - grabkeys(); - compileregs(); - for(ntags = 0; tags[ntags]; ntags++); - seltags = emallocz(sizeof(Bool) * ntags); - seltags[0] = True; - /* geometry */ - sx = sy = 0; - sw = DisplayWidth(dpy, screen); - sh = DisplayHeight(dpy, screen); - initstyle(); - initlayouts(); - initbar(); - /* multihead support */ - selscreen = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask); -} - -/* - * Startup Error handler to check if another window manager - * is already running. - */ -static int -xerrorstart(Display *dsply, XErrorEvent *ee) { - otherwm = True; - return -1; -} - -/* extern */ - -Bool -gettextprop(Window w, Atom atom, char *text, unsigned int size) { - char **list = NULL; - int n; - XTextProperty name; - - if(!text || size == 0) - return False; - text[0] = '\0'; - XGetTextProperty(dpy, w, &name, atom); - if(!name.nitems) - return False; - if(name.encoding == XA_STRING) - strncpy(text, (char *)name.value, size - 1); - else { - if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success - && n > 0 && *list) - { - strncpy(text, *list, size - 1); - XFreeStringList(list); - } - } - text[size - 1] = '\0'; - XFree(name.value); - return True; -} - -void -quit(const char *arg) { - readin = running = False; -} - -/* There's no way to check accesses to destroyed windows, thus those cases are - * ignored (especially on UnmapNotify's). Other types of errors call Xlibs - * default error handler, which may call exit. - */ -int -xerror(Display *dpy, XErrorEvent *ee) { - if(ee->error_code == BadWindow - || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch) - || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable) - || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable) - || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable) - || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch) - || (ee->request_code == X_GrabKey && ee->error_code == BadAccess) - || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable)) - return 0; - fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n", - ee->request_code, ee->error_code); - return xerrorxlib(dpy, ee); /* may call exit */ -} - -int -main(int argc, char *argv[]) { - char *p; - int r, xfd; - fd_set rd; - XEvent ev; - - if(argc == 2 && !strcmp("-v", argv[1])) - eprint("dwm-"VERSION", © 2006-2007 A. R. Garbe, S. van Dijk, J. Salmi, P. Hruby, S. Nagy\n"); - else if(argc != 1) - eprint("usage: dwm [-v]\n"); - setlocale(LC_CTYPE, ""); - if(!(dpy = XOpenDisplay(0))) - eprint("dwm: cannot open display\n"); - xfd = ConnectionNumber(dpy); - screen = DefaultScreen(dpy); - root = RootWindow(dpy, screen); - otherwm = False; - XSetErrorHandler(xerrorstart); - /* this causes an error if some other window manager is running */ - XSelectInput(dpy, root, SubstructureRedirectMask); - XSync(dpy, False); - if(otherwm) - eprint("dwm: another window manager is already running\n"); - - XSync(dpy, False); - XSetErrorHandler(NULL); - xerrorxlib = XSetErrorHandler(xerror); - XSync(dpy, False); - setup(); - drawbar(); - scan(); - - /* main event loop, also reads status text from stdin */ - XSync(dpy, False); - readin = True; - while(running) { - FD_ZERO(&rd); - if(readin) - FD_SET(STDIN_FILENO, &rd); - FD_SET(xfd, &rd); - if(select(xfd + 1, &rd, NULL, NULL, NULL) == -1) { - if(errno == EINTR) - continue; - eprint("select failed\n"); - } - if(FD_ISSET(STDIN_FILENO, &rd)) { - switch(r = read(STDIN_FILENO, stext, sizeof stext - 1)) { - case -1: - strncpy(stext, strerror(errno), sizeof stext - 1); - stext[sizeof stext - 1] = '\0'; - readin = False; - break; - case 0: - strncpy(stext, "EOF", 4); - readin = False; - break; - default: - for(stext[r] = '\0', p = stext + strlen(stext) - 1; p >= stext && *p == '\n'; *p-- = '\0'); - for(; p >= stext && *p != '\n'; --p); - if(p > stext) - strncpy(stext, p + 1, sizeof stext); - } - drawbar(); - } - while(XPending(dpy)) { - XNextEvent(dpy, &ev); - if(handler[ev.type]) - (handler[ev.type])(&ev); /* call handler */ - } - } - cleanup(); - XCloseDisplay(dpy); - return 0; -} diff --git a/screen.c b/screen.c deleted file mode 100644 index 142ed56..0000000 --- a/screen.c +++ /dev/null @@ -1,340 +0,0 @@ -/* See LICENSE file for copyright and license details. */ -#include "dwm.h" -#include -#include -#include -#include -#include - -/* static */ - -typedef struct { - const char *symbol; - void (*arrange)(void); -} Layout; - -typedef struct { - const char *prop; - const char *tags; - Bool isfloating; -} Rule; - -typedef struct { - regex_t *propregex; - regex_t *tagregex; -} Regs; - -TAGS -RULES - -static unsigned int nrules = 0; -static unsigned int nlayouts = 0; -static unsigned int ltidx = 0; /* default */ -static Regs *regs = NULL; - -static unsigned int -idxoftag(const char *tag) { - unsigned int i; - - for(i = 0; i < ntags; i++) - if(tags[i] == tag) - return i; - return 0; -} - -static void -floating(void) { /* default floating layout */ - Client *c; - - for(c = clients; c; c = c->next) - if(isvisible(c)) - resize(c, c->x, c->y, c->w, c->h, True); -} - -LAYOUTS - -/* extern */ - -unsigned int blw = 0; - -void -applyrules(Client *c) { - static char buf[512]; - unsigned int i, j; - regmatch_t tmp; - Bool matched = False; - XClassHint ch = { 0 }; - - /* rule matching */ - XGetClassHint(dpy, c->win, &ch); - snprintf(buf, sizeof buf, "%s:%s:%s", - ch.res_class ? ch.res_class : "", - ch.res_name ? ch.res_name : "", c->name); - for(i = 0; i < nrules; i++) - if(regs[i].propregex && !regexec(regs[i].propregex, buf, 1, &tmp, 0)) { - c->isfloating = rules[i].isfloating; - for(j = 0; regs[i].tagregex && j < ntags; j++) { - if(!regexec(regs[i].tagregex, tags[j], 1, &tmp, 0)) { - matched = True; - c->tags[j] = True; - } - } - } - if(ch.res_class) - XFree(ch.res_class); - if(ch.res_name) - XFree(ch.res_name); - if(!matched) - for(i = 0; i < ntags; i++) - c->tags[i] = seltags[i]; -} - -void -arrange(void) { - Client *c; - - for(c = clients; c; c = c->next) - if(isvisible(c)) - unban(c); - else - ban(c); - layouts[ltidx].arrange(); - focus(NULL); - restack(); -} - -void -compileregs(void) { - unsigned int i; - regex_t *reg; - - if(regs) - return; - nrules = sizeof rules / sizeof rules[0]; - regs = emallocz(nrules * sizeof(Regs)); - for(i = 0; i < nrules; i++) { - if(rules[i].prop) { - reg = emallocz(sizeof(regex_t)); - if(regcomp(reg, rules[i].prop, REG_EXTENDED)) - free(reg); - else - regs[i].propregex = reg; - } - if(rules[i].tags) { - reg = emallocz(sizeof(regex_t)); - if(regcomp(reg, rules[i].tags, REG_EXTENDED)) - free(reg); - else - regs[i].tagregex = reg; - } - } -} - -void -focusnext(const char *arg) { - Client *c; - - if(!sel) - return; - for(c = sel->next; c && !isvisible(c); c = c->next); - if(!c) - for(c = clients; c && !isvisible(c); c = c->next); - if(c) { - focus(c); - restack(); - } -} - -void -focusprev(const char *arg) { - Client *c; - - if(!sel) - return; - for(c = sel->prev; c && !isvisible(c); c = c->prev); - if(!c) { - for(c = clients; c && c->next; c = c->next); - for(; c && !isvisible(c); c = c->prev); - } - if(c) { - focus(c); - restack(); - } -} - -const char * -getsymbol(void) -{ - return layouts[ltidx].symbol; -} - -void -initlayouts(void) { - unsigned int i, w; - - nlayouts = sizeof layouts / sizeof layouts[0]; - for(blw = i = 0; i < nlayouts; i++) { - w = textw(layouts[i].symbol); - if(w > blw) - blw = w; - } -} - -Bool -isfloating(void) { - return layouts[ltidx].arrange == floating; -} - -Bool -isarrange(void (*func)()) -{ - return func == layouts[ltidx].arrange; -} - -Bool -isvisible(Client *c) { - unsigned int i; - - for(i = 0; i < ntags; i++) - if(c->tags[i] && seltags[i]) - return True; - return False; -} - -Client * -nexttiled(Client *c) { - for(; c && (c->isfloating || !isvisible(c)); c = c->next); - return c; -} - -void -restack(void) { - Client *c; - XEvent ev; - XWindowChanges wc; - - drawbar(); - if(!sel) - return; - if(sel->isfloating || isfloating()) - XRaiseWindow(dpy, sel->win); - if(!isfloating()) { - wc.stack_mode = Below; - wc.sibling = barwin; - if(!sel->isfloating) { - XConfigureWindow(dpy, sel->win, CWSibling | CWStackMode, &wc); - wc.sibling = sel->win; - } - for(c = nexttiled(clients); c; c = nexttiled(c->next)) { - if(c == sel) - continue; - XConfigureWindow(dpy, c->win, CWSibling | CWStackMode, &wc); - wc.sibling = c->win; - } - } - XSync(dpy, False); - while(XCheckMaskEvent(dpy, EnterWindowMask, &ev)); -} - -void -setlayout(const char *arg) { - unsigned int i; - - if(!arg) { - if(++ltidx == nlayouts) - ltidx = 0;; - } - else { - for(i = 0; i < nlayouts; i++) - if(!strcmp(arg, layouts[i].symbol)) - break; - if(i == nlayouts) - return; - ltidx = i; - } - if(sel) - arrange(); - else - drawbar(); -} - -void -tag(const char *arg) { - unsigned int i; - - if(!sel) - return; - for(i = 0; i < ntags; i++) - sel->tags[i] = arg == NULL; - i = idxoftag(arg); - if(i >= 0 && i < ntags) - sel->tags[i] = True; - arrange(); -} - -void -togglefloating(const char *arg) { - if(!sel) - return; - sel->isfloating = !sel->isfloating; - if(sel->isfloating) - resize(sel, sel->x, sel->y, sel->w, sel->h, True); - arrange(); -} - -void -togglemax(const char *arg) { - XEvent ev; - - if(!sel || (!isfloating() && !sel->isfloating) || sel->isfixed) - return; - if((sel->ismax = !sel->ismax)) { - sel->rx = sel->x; - sel->ry = sel->y; - sel->rw = sel->w; - sel->rh = sel->h; - resize(sel, wax, way, waw - 2 * sel->border, wah - 2 * sel->border, True); - } - else - resize(sel, sel->rx, sel->ry, sel->rw, sel->rh, True); - drawbar(); - while(XCheckMaskEvent(dpy, EnterWindowMask, &ev)); -} - -void -toggletag(const char *arg) { - unsigned int i, j; - - if(!sel) - return; - i = idxoftag(arg); - sel->tags[i] = !sel->tags[i]; - for(j = 0; j < ntags && !sel->tags[j]; j++); - if(j == ntags) - sel->tags[i] = True; - arrange(); -} - -void -toggleview(const char *arg) { - unsigned int i, j; - - i = idxoftag(arg); - seltags[i] = !seltags[i]; - for(j = 0; j < ntags && !seltags[j]; j++); - if(j == ntags) - seltags[i] = True; /* cannot toggle last view */ - arrange(); -} - -void -view(const char *arg) { - unsigned int i; - - for(i = 0; i < ntags; i++) - seltags[i] = arg == NULL; - i = idxoftag(arg); - if(i >= 0 && i < ntags) - seltags[i] = True; - arrange(); -} diff --git a/tile.c b/tile.c deleted file mode 100644 index 56a06d3..0000000 --- a/tile.c +++ /dev/null @@ -1,85 +0,0 @@ -/* See LICENSE file for copyright and license details. */ -#include "dwm.h" -#include - -/* static */ - -static double mwfact = MWFACT; - -/* extern */ - -void -setmwfact(const char *arg) { - double delta; - - if(!isarrange(tile)) - return; - /* arg handling, manipulate mwfact */ - if(arg == NULL) - mwfact = MWFACT; - else if(1 == sscanf(arg, "%lf", &delta)) { - if(arg[0] != '+' && arg[0] != '-') - mwfact = delta; - else - mwfact += delta; - if(mwfact < 0.1) - mwfact = 0.1; - else if(mwfact > 0.9) - mwfact = 0.9; - } - arrange(); -} - -void -tile(void) { - unsigned int i, n, nx, ny, nw, nh, mw, th; - Client *c; - - for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next)) - n++; - - /* window geoms */ - mw = (n == 1) ? waw : mwfact * waw; - th = (n > 1) ? wah / (n - 1) : 0; - if(n > 1 && th < bh) - th = wah; - - nx = wax; - ny = way; - for(i = 0, c = nexttiled(clients); c; c = nexttiled(c->next), i++) { - c->ismax = False; - if(i == 0) { /* master */ - nw = mw - 2 * c->border; - nh = wah - 2 * c->border; - } - else { /* tile window */ - if(i == 1) { - ny = way; - nx += mw; - } - nw = waw - mw - 2 * c->border; - if(i + 1 == n) /* remainder */ - nh = (way + wah) - ny - 2 * c->border; - else - nh = th - 2 * c->border; - } - resize(c, nx, ny, nw, nh, RESIZEHINTS); - if(n > 1 && th != wah) - ny += nh + 2 * c->border; - } -} - -void -zoom(const char *arg) { - Client *c; - - if(!sel || !isarrange(tile) || sel->isfloating) - return; - if((c = sel) == nexttiled(clients)) - if(!(c = nexttiled(c->next))) - return; - detach(c); - attach(c); - focus(c); - arrange(); -} diff --git a/tile.h b/tile.h deleted file mode 100644 index 38e0c76..0000000 --- a/tile.h +++ /dev/null @@ -1,6 +0,0 @@ -/* See LICENSE file for copyright and license details. */ - -/* tile.c */ -void setmwfact(const char *arg); /* sets master width factor */ -void tile(void); /* arranges all windows tiled */ -void zoom(const char *arg); /* zooms the focused client to master area, arg is ignored */ diff --git a/util.c b/util.c deleted file mode 100644 index d39d73c..0000000 --- a/util.c +++ /dev/null @@ -1,52 +0,0 @@ -/* See LICENSE file for copyright and license details. */ -#include "dwm.h" -#include -#include -#include -#include -#include - -/* extern */ - -void * -emallocz(unsigned int size) { - void *res = calloc(1, size); - - if(!res) - eprint("fatal: could not malloc() %u bytes\n", size); - return res; -} - -void -eprint(const char *errstr, ...) { - va_list ap; - - va_start(ap, errstr); - vfprintf(stderr, errstr, ap); - va_end(ap); - exit(EXIT_FAILURE); -} - -void -spawn(const char *arg) { - static char *shell = NULL; - - if(!shell && !(shell = getenv("SHELL"))) - shell = "/bin/sh"; - if(!arg) - return; - /* The double-fork construct avoids zombie processes and keeps the code - * clean from stupid signal handlers. */ - if(fork() == 0) { - if(fork() == 0) { - if(dpy) - close(ConnectionNumber(dpy)); - setsid(); - execl(shell, shell, "-c", arg, (char *)NULL); - fprintf(stderr, "dwm: execl '%s -c %s'", shell, arg); - perror(" failed"); - } - exit(0); - } - wait(0); -} -- 1.7.10.4