tag.c

   1 /*
   2  * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
   3  * See LICENSE file for license details.
   4  */
   5 #include "dwm.h"
   6 #include <regex.h>
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9 #include <string.h>
  10 #include <sys/types.h>
  11 #include <X11/Xutil.h>
  12
  13
  14 typedef struct {
  15         const char *clpattern;
  16         const char *tpattern;
  17         Bool isfloat;
  18 } Rule;
  19
  20 typedef struct {
  21         regex_t *clregex;
  22         regex_t *tregex;
  23 } RReg;
  24
  25 /* static */
  26
  27 TAGS
  28 RULES
  29
  30 static RReg *rreg = NULL;
  31 static unsigned int len = 0;
  32
  33 void (*arrange)(Arg *) = DEFMODE;
  34
  35 /* extern */
  36
  37 void
  38 appendtag(Arg *arg)
  39 {
  40         if(!sel)
  41                 return;
  42
  43         sel->tags[arg->i] = True;
  44         arrange(NULL);
  45 }
  46
  47 void
  48 dofloat(Arg *arg)
  49 {
  50         Client *c;
  51
  52         for(c = clients; c; c = c->next) {
  53                 c->ismax = False;
  54                 if(c->tags[tsel]) {
  55                         resize(c, True, TopLeft);
  56                 }
  57                 else
  58                         ban(c);
  59         }
  60         if(sel && !sel->tags[tsel]) {
  61                 if((sel = getnext(clients))) {
  62                         higher(sel);
  63                         focus(sel);
  64                 }
  65                 else
  66                         XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
  67         }
  68         drawall();
  69 }
  70
  71 void
  72 dotile(Arg *arg)
  73 {
  74         int n, i, w, h;
  75         Client *c;
  76
  77         w = sw - mw;
  78         for(n = 0, c = clients; c; c = c->next)
  79                 if(c->tags[tsel] && !c->isfloat)
  80                         n++;
  81
  82         if(n > 1)
  83                 h = (sh - bh) / (n - 1);
  84         else
  85                 h = sh - bh;
  86
  87         for(i = 0, c = clients; c; c = c->next) {
  88                 c->ismax = False;
  89                 if(c->tags[tsel]) {
  90                         if(c->isfloat) {
  91                                 higher(c);
  92                                 resize(c, True, TopLeft);
  93                                 continue;
  94                         }
  95                         if(n == 1) {
  96                                 c->x = sx;
  97                                 c->y = sy + bh;
  98                                 c->w = sw - 2;
  99                                 c->h = sh - 2 - bh;
 100                         }
 101                         else if(i == 0) {
 102                                 c->x = sx;
 103                                 c->y = sy + bh;
 104                                 c->w = mw - 2;
 105                                 c->h = sh - 2 - bh;
 106                         }
 107                         else if(h > bh) {
 108                                 c->x = sx + mw;
 109                                 c->y = sy + (i - 1) * h + bh;
 110                                 c->w = w - 2;
 111                                 c->h = h - 2;
 112                         }
 113                         else { /* fallback if h < bh */
 114                                 c->x = sx + mw;
 115                                 c->y = sy + bh;
 116                                 c->w = w - 2;
 117                                 c->h = sh - 2 - bh;
 118                         }
 119                         resize(c, False, TopLeft);
 120                         i++;
 121                 }
 122                 else
 123                         ban(c);
 124         }
 125         if(!sel || (sel && !sel->tags[tsel])) {
 126                 if((sel = getnext(clients))) {
 127                         higher(sel);
 128                         focus(sel);
 129                 }
 130                 else
 131                         XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
 132         }
 133         drawall();
 134 }
 135
 136 Client *
 137 getnext(Client *c)
 138 {
 139         for(; c && !c->tags[tsel]; c = c->next);
 140         return c;
 141 }
 142
 143 Client *
 144 getprev(Client *c)
 145 {
 146         for(; c && !c->tags[tsel]; c = c->prev);
 147         return c;
 148 }
 149
 150 void
 151 initrregs()
 152 {
 153         unsigned int i;
 154         regex_t *reg;
 155
 156         if(rreg)
 157                 return;
 158         len = sizeof(rule) / sizeof(rule[0]);
 159         rreg = emallocz(len * sizeof(RReg));
 160
 161         for(i = 0; i < len; i++) {
 162                 if(rule[i].clpattern) {
 163                         reg = emallocz(sizeof(regex_t));
 164                         if(regcomp(reg, rule[i].clpattern, 0))
 165                                 free(reg);
 166                         else
 167                                 rreg[i].clregex = reg;
 168                 }
 169                 if(rule[i].tpattern) {
 170                         reg = emallocz(sizeof(regex_t));
 171                         if(regcomp(reg, rule[i].tpattern, 0))
 172                                 free(reg);
 173                         else
 174                                 rreg[i].tregex = reg;
 175                 }
 176         }
 177 }
 178
 179 void
 180 replacetag(Arg *arg)
 181 {
 182         int i;
 183
 184         if(!sel)
 185                 return;
 186
 187         for(i = 0; i < ntags; i++)
 188                 sel->tags[i] = False;
 189         appendtag(arg);
 190 }
 191
 192 void
 193 settags(Client *c)
 194 {
 195         char classinst[256];
 196         unsigned int i, j;
 197         regmatch_t tmp;
 198         Bool matched = False;
 199         XClassHint ch;
 200
 201         if(XGetClassHint(dpy, c->win, &ch)) {
 202                 snprintf(classinst, sizeof(classinst), "%s:%s",
 203                                 ch.res_class ? ch.res_class : "",
 204                                 ch.res_name ? ch.res_name : "");
 205                 for(i = 0; !matched && i < len; i++)
 206                         if(rreg[i].clregex && !regexec(rreg[i].clregex, classinst, 1, &tmp, 0)) {
 207                                 c->isfloat = rule[i].isfloat;
 208                                 for(j = 0; rreg[i].tregex && j < ntags; j++) {
 209                                         if(!regexec(rreg[i].tregex, tags[j], 1, &tmp, 0)) {
 210                                                 matched = True;
 211                                                 c->tags[j] = True;
 212                                         }
 213                                 }
 214                         }
 215                 if(ch.res_class)
 216                         XFree(ch.res_class);
 217                 if(ch.res_name)
 218                         XFree(ch.res_name);
 219         }
 220         if(!matched)
 221                 c->tags[tsel] = True;
 222 }
 223
 224 void
 225 togglemode(Arg *arg)
 226 {
 227         arrange = arrange == dofloat ? dotile : dofloat;
 228         arrange(NULL);
 229 }
 230
 231 void
 232 view(Arg *arg)
 233 {
 234         tsel = arg->i;
 235         arrange(NULL);
 236         drawall();
 237 }
 238
 239 void
 240 viewnext(Arg *arg)
 241 {
 242         arg->i = (tsel < ntags-1) ? tsel+1 : 0;
 243         view(arg);
 244 }
 245
 246 void
 247 viewprev(Arg *arg)
 248 {
 249         arg->i = (tsel > 0) ? tsel-1 : ntags-1;
 250         view(arg);
 251 }