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(isvisible(c)) {
  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(isvisible(c) && !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(isvisible(c)) {
  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                                 if(i + 1 == n)
 110                                         c->h = sh - c->y - 2;
 111                                 else
 112                                         c->h = h - 2;
 113                         }
 114                         else { /* fallback if h < bh */
 115                                 c->x = sx + mw;
 116                                 c->y = sy + bh;
 117                                 c->w = w - 2;
 118                                 c->h = sh - 2 - bh;
 119                         }
 120                         resize(c, False, TopLeft);
 121                         i++;
 122                 }
 123                 else
 124                         ban(c);
 125         }
 126         if((sel = getnext(clients))) {
 127                 higher(sel);
 128                 focus(sel);
 129         }
 130         else
 131                 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
 132         drawall();
 133 }
 134
 135 Client *
 136 getnext(Client *c)
 137 {
 138         for(; c && !isvisible(c); c = c->next);
 139         return c;
 140 }
 141
 142 Client *
 143 getprev(Client *c)
 144 {
 145         for(; c && !isvisible(c); c = c->prev);
 146         return c;
 147 }
 148
 149 void
 150 initrregs()
 151 {
 152         unsigned int i;
 153         regex_t *reg;
 154
 155         if(rreg)
 156                 return;
 157         len = sizeof(rule) / sizeof(rule[0]);
 158         rreg = emallocz(len * sizeof(RReg));
 159
 160         for(i = 0; i < len; i++) {
 161                 if(rule[i].clpattern) {
 162                         reg = emallocz(sizeof(regex_t));
 163                         if(regcomp(reg, rule[i].clpattern, 0))
 164                                 free(reg);
 165                         else
 166                                 rreg[i].clregex = reg;
 167                 }
 168                 if(rule[i].tpattern) {
 169                         reg = emallocz(sizeof(regex_t));
 170                         if(regcomp(reg, rule[i].tpattern, 0))
 171                                 free(reg);
 172                         else
 173                                 rreg[i].tregex = reg;
 174                 }
 175         }
 176 }
 177
 178 Bool
 179 isvisible(Client *c)
 180 {
 181         unsigned int i;
 182
 183         for(i = 0; i < ntags; i++)
 184                 if(c->tags[i] && tsel[i])
 185                         return True;
 186         return False;
 187 }
 188
 189 void
 190 replacetag(Arg *arg)
 191 {
 192         int i;
 193
 194         if(!sel)
 195                 return;
 196
 197         for(i = 0; i < ntags; i++)
 198                 sel->tags[i] = False;
 199         appendtag(arg);
 200 }
 201
 202 void
 203 settags(Client *c)
 204 {
 205         char classinst[256];
 206         unsigned int i, j;
 207         regmatch_t tmp;
 208         Bool matched = False;
 209         XClassHint ch;
 210
 211         if(XGetClassHint(dpy, c->win, &ch)) {
 212                 snprintf(classinst, sizeof(classinst), "%s:%s",
 213                                 ch.res_class ? ch.res_class : "",
 214                                 ch.res_name ? ch.res_name : "");
 215                 for(i = 0; !matched && i < len; i++)
 216                         if(rreg[i].clregex && !regexec(rreg[i].clregex, classinst, 1, &tmp, 0)) {
 217                                 c->isfloat = rule[i].isfloat;
 218                                 for(j = 0; rreg[i].tregex && j < ntags; j++) {
 219                                         if(!regexec(rreg[i].tregex, tags[j], 1, &tmp, 0)) {
 220                                                 matched = True;
 221                                                 c->tags[j] = True;
 222                                         }
 223                                 }
 224                         }
 225                 if(ch.res_class)
 226                         XFree(ch.res_class);
 227                 if(ch.res_name)
 228                         XFree(ch.res_name);
 229         }
 230         if(!matched)
 231                 for(i = 0; i < ntags; i++)
 232                         c->tags[i] = tsel[i];
 233 }
 234
 235 void
 236 togglemode(Arg *arg)
 237 {
 238         arrange = arrange == dofloat ? dotile : dofloat;
 239         arrange(NULL);
 240 }
 241
 242 void
 243 view(Arg *arg)
 244 {
 245         unsigned int i;
 246
 247         for(i = 0; i < ntags; i++)
 248                 tsel[i] = False;
 249         tsel[arg->i] = True;
 250         arrange(NULL);
 251         drawall();
 252 }
 253
 254 void
 255 viewnext(Arg *arg)
 256 {
 257         unsigned int i;
 258
 259         for(i = 0; !tsel[i]; i++);
 260         arg->i = (i < ntags-1) ? i+1 : 0;
 261         view(arg);
 262 }
 263
 264 void
 265 viewprev(Arg *arg)
 266 {
 267         unsigned int i;
 268
 269         for(i = 0; !tsel[i]; i++);
 270         arg->i = (i > 0) ? i-1 : ntags-1;
 271         view(arg);
 272 }