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 = getnext(clients))) {
  61                 higher(sel);
  62                 focus(sel);
  63         }
  64         else
  65                 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
  66         drawall();
  67 }
  68
  69 void
  70 dotile(Arg *arg)
  71 {
  72         int n, i, w, h;
  73         Client *c;
  74
  75         w = sw - mw;
  76         for(n = 0, c = clients; c; c = c->next)
  77                 if(c->tags[tsel] && !c->isfloat)
  78                         n++;
  79
  80         if(n > 1)
  81                 h = (sh - bh) / (n - 1);
  82         else
  83                 h = sh - bh;
  84
  85         for(i = 0, c = clients; c; c = c->next) {
  86                 c->ismax = False;
  87                 if(c->tags[tsel]) {
  88                         if(c->isfloat) {
  89                                 higher(c);
  90                                 resize(c, True, TopLeft);
  91                                 continue;
  92                         }
  93                         if(n == 1) {
  94                                 c->x = sx;
  95                                 c->y = sy + bh;
  96                                 c->w = sw - 2;
  97                                 c->h = sh - 2 - bh;
  98                         }
  99                         else if(i == 0) {
 100                                 c->x = sx;
 101                                 c->y = sy + bh;
 102                                 c->w = mw - 2;
 103                                 c->h = sh - 2 - bh;
 104                         }
 105                         else if(h > bh) {
 106                                 c->x = sx + mw;
 107                                 c->y = sy + (i - 1) * h + bh;
 108                                 c->w = w - 2;
 109                                 c->h = h - 2;
 110                         }
 111                         else { /* fallback if h < bh */
 112                                 c->x = sx + mw;
 113                                 c->y = sy + bh;
 114                                 c->w = w - 2;
 115                                 c->h = sh - 2 - bh;
 116                         }
 117                         resize(c, False, TopLeft);
 118                         i++;
 119                 }
 120                 else
 121                         ban(c);
 122         }
 123         if((sel = getnext(clients))) {
 124                 higher(sel);
 125                 focus(sel);
 126         }
 127         else
 128                 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
 129         drawall();
 130 }
 131
 132 Client *
 133 getnext(Client *c)
 134 {
 135         for(; c && !c->tags[tsel]; c = c->next);
 136         return c;
 137 }
 138
 139 Client *
 140 getprev(Client *c)
 141 {
 142         for(; c && !c->tags[tsel]; c = c->prev);
 143         return c;
 144 }
 145
 146 void
 147 initrregs()
 148 {
 149         unsigned int i;
 150         regex_t *reg;
 151
 152         if(rreg)
 153                 return;
 154         len = sizeof(rule) / sizeof(rule[0]);
 155         rreg = emallocz(len * sizeof(RReg));
 156
 157         for(i = 0; i < len; i++) {
 158                 if(rule[i].clpattern) {
 159                         reg = emallocz(sizeof(regex_t));
 160                         if(regcomp(reg, rule[i].clpattern, 0))
 161                                 free(reg);
 162                         else
 163                                 rreg[i].clregex = reg;
 164                 }
 165                 if(rule[i].tpattern) {
 166                         reg = emallocz(sizeof(regex_t));
 167                         if(regcomp(reg, rule[i].tpattern, 0))
 168                                 free(reg);
 169                         else
 170                                 rreg[i].tregex = reg;
 171                 }
 172         }
 173 }
 174
 175 void
 176 replacetag(Arg *arg)
 177 {
 178         int i;
 179
 180         if(!sel)
 181                 return;
 182
 183         for(i = 0; i < ntags; i++)
 184                 sel->tags[i] = False;
 185         appendtag(arg);
 186 }
 187
 188 void
 189 settags(Client *c)
 190 {
 191         char classinst[256];
 192         unsigned int i, j;
 193         regmatch_t tmp;
 194         Bool matched = False;
 195         XClassHint ch;
 196
 197         if(XGetClassHint(dpy, c->win, &ch)) {
 198                 snprintf(classinst, sizeof(classinst), "%s:%s",
 199                                 ch.res_class ? ch.res_class : "",
 200                                 ch.res_name ? ch.res_name : "");
 201                 for(i = 0; !matched && i < len; i++)
 202                         if(rreg[i].clregex && !regexec(rreg[i].clregex, classinst, 1, &tmp, 0)) {
 203                                 c->isfloat = rule[i].isfloat;
 204                                 for(j = 0; rreg[i].tregex && j < ntags; j++) {
 205                                         if(!regexec(rreg[i].tregex, tags[j], 1, &tmp, 0)) {
 206                                                 matched = True;
 207                                                 c->tags[j] = True;
 208                                         }
 209                                 }
 210                         }
 211                 if(ch.res_class)
 212                         XFree(ch.res_class);
 213                 if(ch.res_name)
 214                         XFree(ch.res_name);
 215         }
 216         if(!matched)
 217                 c->tags[tsel] = True;
 218 }
 219
 220 void
 221 togglemode(Arg *arg)
 222 {
 223         arrange = arrange == dofloat ? dotile : dofloat;
 224         arrange(NULL);
 225 }
 226
 227 void
 228 view(Arg *arg)
 229 {
 230         tsel = arg->i;
 231         arrange(NULL);
 232         drawall();
 233 }
 234
 235 void
 236 viewnext(Arg *arg)
 237 {
 238         arg->i = (tsel < ntags-1) ? tsel+1 : 0;
 239         view(arg);
 240 }
 241
 242 void
 243 viewprev(Arg *arg)
 244 {
 245         arg->i = (tsel > 0) ? tsel-1 : ntags-1;
 246         view(arg);
 247 }