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small changes to dwm.1, rearranged order within main event loop
[dwm.git] / tag.c
diff --git a/tag.c b/tag.c
index 48f1f2a..cdb0f52 100644 (file)
--- a/tag.c
+++ b/tag.c
@@ -3,71 +3,68 @@
  * See LICENSE file for license details.
  */
 #include "dwm.h"
-
+#include <regex.h>
+#include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
+#include <sys/types.h>
 #include <X11/Xutil.h>
 
-/********** CUSTOMIZE **********/
 
-char *tags[TLast] = {
-       [Tscratch] = "scratch",
-       [Tdev] = "dev",
-       [Twww] = "www",
-       [Twork] = "work",
-};
+typedef struct {
+       const char *clpattern;
+       const char *tpattern;
+       Bool isfloat;
+} Rule;
 
-static Rule rule[] = {
-       /* class                        instance        tags                                            isfloat */
-       { "Firefox-bin",        "Gecko",        { [Twww] = "www" },                     False },
-};
+typedef struct {
+       regex_t *clregex;
+       regex_t *tregex;
+} RReg;
 
-/********** CUSTOMIZE **********/
+/* static */
 
-/* extern functions */
+TAGS
+RULES
 
-void (*arrange)(Arg *) = dotile;
+static RReg *rreg = NULL;
+static unsigned int len = 0;
 
-void
-appendtag(Arg *arg)
-{
-       if(!sel)
-               return;
+void (*arrange)(Arg *) = DEFMODE;
 
-       sel->tags[arg->i] = tags[arg->i];
-       arrange(NULL);
-}
+/* extern */
 
 void
 dofloat(Arg *arg)
 {
        Client *c;
 
-       arrange = dofloat;
        for(c = clients; c; c = c->next) {
-               if(c->tags[tsel])
-                       resize(c, True);
+               c->ismax = False;
+               if(isvisible(c)) {
+                       resize(c, True, TopLeft);
+               }
                else
                        ban(c);
        }
-       if(sel && !sel->tags[tsel]) {
-               if((sel = getnext(clients))) {
-                       higher(sel);
-                       focus(sel);
-               }
-       }
-       drawall();
+       if(!sel || !isvisible(sel))
+               sel = getnext(clients);
+       if(sel)
+               focus(sel);
+       else
+               XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
+       restack();
 }
 
 void
 dotile(Arg *arg)
 {
+       int h, i, n, w;
        Client *c;
-       int n, i, w, h;
 
        w = sw - mw;
-       arrange = dotile;
        for(n = 0, c = clients; c; c = c->next)
-               if(c->tags[tsel] && !c->isfloat)
+               if(isvisible(c) && !c->isfloat)
                        n++;
 
        if(n > 1)
@@ -76,104 +73,256 @@ dotile(Arg *arg)
                h = sh - bh;
 
        for(i = 0, c = clients; c; c = c->next) {
-               if(c->tags[tsel]) {
+               c->ismax = False;
+               if(isvisible(c)) {
                        if(c->isfloat) {
-                               higher(c);
-                               resize(c, True);
+                               resize(c, True, TopLeft);
                                continue;
                        }
                        if(n == 1) {
                                c->x = sx;
                                c->y = sy + bh;
-                               c->w = sw - 2 * c->border;
-                               c->h = sh - 2 * c->border - bh;
+                               c->w = sw - 2;
+                               c->h = sh - 2 - bh;
                        }
                        else if(i == 0) {
                                c->x = sx;
                                c->y = sy + bh;
-                               c->w = mw - 2 * c->border;
-                               c->h = sh - 2 * c->border - bh;
+                               c->w = mw - 2;
+                               c->h = sh - 2 - bh;
                        }
-                       else {
+                       else if(h > bh) {
                                c->x = sx + mw;
                                c->y = sy + (i - 1) * h + bh;
-                               c->w = w - 2 * c->border;
-                               c->h = h - 2 * c->border;
+                               c->w = w - 2;
+                               if(i + 1 == n)
+                                       c->h = sh - c->y - 2;
+                               else
+                                       c->h = h - 2;
+                       }
+                       else { /* fallback if h < bh */
+                               c->x = sx + mw;
+                               c->y = sy + bh;
+                               c->w = w - 2;
+                               c->h = sh - 2 - bh;
                        }
-                       resize(c, False);
+                       resize(c, False, TopLeft);
                        i++;
                }
                else
                        ban(c);
        }
-       if(!sel || (sel && !sel->tags[tsel])) {
-               if((sel = getnext(clients))) {
-                       higher(sel);
-                       focus(sel);
-               }
-       }
-       drawall();
+       if(!sel || !isvisible(sel))
+               sel = getnext(clients);
+       if(sel)
+               focus(sel);
+       else
+               XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
+       restack();
 }
 
 Client *
 getnext(Client *c)
 {
-       for(; c && !c->tags[tsel]; c = c->next);
+       for(; c && !isvisible(c); c = c->next);
+       return c;
+}
+
+Client *
+getprev(Client *c)
+{
+       for(; c && !isvisible(c); c = c->prev);
        return c;
 }
 
 void
-replacetag(Arg *arg)
+initrregs()
 {
-       int i;
-       if(!sel)
+       unsigned int i;
+       regex_t *reg;
+
+       if(rreg)
                return;
+       len = sizeof(rule) / sizeof(rule[0]);
+       rreg = emallocz(len * sizeof(RReg));
+
+       for(i = 0; i < len; i++) {
+               if(rule[i].clpattern) {
+                       reg = emallocz(sizeof(regex_t));
+                       if(regcomp(reg, rule[i].clpattern, 0))
+                               free(reg);
+                       else
+                               rreg[i].clregex = reg;
+               }
+               if(rule[i].tpattern) {
+                       reg = emallocz(sizeof(regex_t));
+                       if(regcomp(reg, rule[i].tpattern, 0))
+                               free(reg);
+                       else
+                               rreg[i].tregex = reg;
+               }
+       }
+}
+
+Bool
+isvisible(Client *c)
+{
+       unsigned int i;
 
-       for(i = 0; i < TLast; i++)
-               sel->tags[i] = NULL;
-       appendtag(arg);
+       for(i = 0; i < ntags; i++)
+               if(c->tags[i] && seltag[i])
+                       return True;
+       return False;
 }
 
 void
-settags(Client *c)
+restack()
 {
-       XClassHint ch;
-       static unsigned int len = rule ? sizeof(rule) / sizeof(rule[0]) : 0;
-       unsigned int i, j;
-       Bool matched = False;
+       static unsigned int nwins = 0;
+       static Window *wins = NULL;
+       unsigned int f, fi, m, mi, n;
+       Client *c;
+       XEvent ev;
 
-       if(!len) {
-               c->tags[tsel] = tags[tsel];
+       for(f = 0, m = 0, c = clients; c; c = c->next)
+               if(isvisible(c)) {
+                       if(c->isfloat || arrange == dofloat)
+                               f++;
+                       else
+                               m++;
+               }
+       if(!(n = 2 * (f + m))) {
+               drawstatus();
                return;
        }
+       if(nwins < n) {
+               nwins = n;
+               wins = erealloc(wins, nwins * sizeof(Window));
+       }
+
+       fi = 0;
+       mi = 2 * f;
+       if(sel->isfloat || arrange == dofloat) {
+               wins[fi++] = sel->title;
+               wins[fi++] = sel->win;
+       }
+       else {
+               wins[mi++] = sel->title;
+               wins[mi++] = sel->win;
+       }
+       for(c = clients; c; c = c->next)
+               if(isvisible(c) && c != sel) {
+                       if(c->isfloat || arrange == dofloat) {
+                               wins[fi++] = c->title;
+                               wins[fi++] = c->win;
+                       }
+                       else {
+                               wins[mi++] = c->title;
+                               wins[mi++] = c->win;
+                       }
+               }
+       XRestackWindows(dpy, wins, n);
+       drawall();
+       XSync(dpy, False);
+       while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
+}
+
+void
+settags(Client *c)
+{
+       char classinst[256];
+       unsigned int i, j;
+       regmatch_t tmp;
+       Bool matched = False;
+       XClassHint ch;
 
        if(XGetClassHint(dpy, c->win, &ch)) {
-               if(ch.res_class && ch.res_name) {
-                       for(i = 0; i < len; i++)
-                               if(!strncmp(rule[i].class, ch.res_class, sizeof(rule[i].class))
-                                       && !strncmp(rule[i].instance, ch.res_name, sizeof(rule[i].instance)))
-                               {
-                                       for(j = 0; j < TLast; j++)
-                                               c->tags[j] = rule[i].tags[j];
-                                       c->isfloat = rule[i].isfloat;
-                                       matched = True;
-                                       break;
+               snprintf(classinst, sizeof(classinst), "%s:%s",
+                               ch.res_class ? ch.res_class : "",
+                               ch.res_name ? ch.res_name : "");
+               for(i = 0; !matched && i < len; i++)
+                       if(rreg[i].clregex && !regexec(rreg[i].clregex, classinst, 1, &tmp, 0)) {
+                               c->isfloat = rule[i].isfloat;
+                               for(j = 0; rreg[i].tregex && j < ntags; j++) {
+                                       if(!regexec(rreg[i].tregex, 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)
-               c->tags[tsel] = tags[tsel];
+               for(i = 0; i < ntags; i++)
+                       c->tags[i] = seltag[i];
+}
+
+void
+tag(Arg *arg)
+{
+       unsigned int i;
+
+       if(!sel)
+               return;
+
+       for(i = 0; i < ntags; i++)
+               sel->tags[i] = False;
+       sel->tags[arg->i] = True;
+       settitle(sel);
+       if(!isvisible(sel))
+               arrange(NULL);
+}
+
+void
+togglemode(Arg *arg)
+{
+       arrange = arrange == dofloat ? dotile : dofloat;
+       if(sel)
+               arrange(NULL);
+       else
+               drawstatus();
+}
+
+void
+toggletag(Arg *arg)
+{
+       unsigned int i;
+
+       if(!sel)
+               return;
+
+       sel->tags[arg->i] = !sel->tags[arg->i];
+       for(i = 0; i < ntags && !sel->tags[i]; i++);
+       if(i == ntags)
+               sel->tags[arg->i] = True;
+       settitle(sel);
+       if(!isvisible(sel))
+               arrange(NULL);
+}
+
+
+void
+toggleview(Arg *arg)
+{
+       unsigned int i;
+
+       seltag[arg->i] = !seltag[arg->i];
+       for(i = 0; i < ntags && !seltag[i]; i++);
+       if(i == ntags)
+               seltag[arg->i] = True; /* cannot toggle last view */
+       arrange(NULL);
 }
 
 void
 view(Arg *arg)
 {
-       tsel = arg->i;
+       unsigned int i;
+
+       for(i = 0; i < ntags; i++)
+               seltag[i] = False;
+       seltag[arg->i] = True;
        arrange(NULL);
-       drawall();
 }