config.c

   1 /*
   2  * config.c - configuration management
   3  *
   4  * Copyright © 2007-2008 Julien Danjou <julien@danjou.info>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  */
  21
  22 /**
  23  * @defgroup ui_callback User Interface Callbacks
  24  */
  25
  26 #include <X11/keysym.h>
  27
  28 #include "config.h"
  29 #include "statusbar.h"
  30 #include "tag.h"
  31 #include "rules.h"
  32 #include "screen.h"
  33 #include "widget.h"
  34 #include "xutil.h"
  35 #include "ewmh.h"
  36 #include "defconfig.h"
  37 #include "layouts/tile.h"
  38 #include "common/configopts.h"
  39 #include "common/configopts.h"
  40
  41 /* Permit to use mouse with many more buttons */
  42 #ifndef Button6
  43 #define Button6 6
  44 #endif
  45 #ifndef Button7
  46 #define Button7 7
  47 #endif
  48
  49 extern AwesomeConf globalconf;
  50 extern cfg_opt_t awesome_opts[];
  51
  52 /** Link a name to a key symbol */
  53 typedef struct
  54 {
  55     const char *name;
  56     KeySym keysym;
  57 } KeyMod;
  58
  59 /** Link a name to a mouse button symbol */
  60 typedef struct
  61 {
  62     const char *name;
  63     unsigned int button;
  64 } MouseButton;
  65
  66 extern const name_func_link_t UicbList[];
  67 extern const name_func_link_t WidgetList[];
  68 extern const name_func_link_t LayoutList[];
  69
  70 /** Lookup for a key mask from its name
  71  * \param keyname Key name
  72  * \return Key mask or 0 if not found
  73  */
  74 static KeySym
  75 key_mask_lookup(const char *keyname)
  76 {
  77     /** List of keyname and corresponding X11 mask codes */
  78     static const KeyMod KeyModList[] =
  79     {
  80         {"Shift", ShiftMask},
  81         {"Lock", LockMask},
  82         {"Control", ControlMask},
  83         {"Mod1", Mod1Mask},
  84         {"Mod2", Mod2Mask},
  85         {"Mod3", Mod3Mask},
  86         {"Mod4", Mod4Mask},
  87         {"Mod5", Mod5Mask},
  88         {NULL, NoSymbol}
  89     };
  90     int i;
  91
  92     if(keyname)
  93         for(i = 0; KeyModList[i].name; i++)
  94             if(!a_strcmp(keyname, KeyModList[i].name))
  95                 return KeyModList[i].keysym;
  96
  97     return NoSymbol;
  98 }
  99
 100 /** Lookup for a mouse button from its name
 101  * \param button Mouse button name
 102  * \return Mouse button or 0 if not found
 103  */
 104 static unsigned int
 105 mouse_button_lookup(const char *button)
 106 {
 107     /** List of button name and corresponding X11 mask codes */
 108     static const MouseButton MouseButtonList[] =
 109     {
 110         {"1", Button1},
 111         {"2", Button2},
 112         {"3", Button3},
 113         {"4", Button4},
 114         {"5", Button5},
 115         {"6", Button6},
 116         {"7", Button7},
 117         {NULL, 0}
 118     };
 119     int i;
 120
 121     if(button)
 122         for(i = 0; MouseButtonList[i].name; i++)
 123             if(!a_strcmp(button, MouseButtonList[i].name))
 124                 return MouseButtonList[i].button;
 125
 126     return 0;
 127 }
 128
 129 static Button *
 130 parse_mouse_bindings(cfg_t * cfg, const char *secname, Bool handle_arg)
 131 {
 132     int i, j;
 133     cfg_t *cfgsectmp;
 134     Button *b = NULL, *head = NULL;
 135
 136     /* Mouse: layout click bindings */
 137     for(i = cfg_size(cfg, secname) - 1; i >= 0; i--)
 138     {
 139         b = p_new(Button, 1);
 140
 141         cfgsectmp = cfg_getnsec(cfg, secname, i);
 142         for(j = cfg_size(cfgsectmp, "modkey") - 1; j >= 0; j--)
 143             b->mod |= key_mask_lookup(cfg_getnstr(cfgsectmp, "modkey", j));
 144         b->button = mouse_button_lookup(cfg_getstr(cfgsectmp, "button"));
 145         b->func = name_func_lookup(cfg_getstr(cfgsectmp, "command"), UicbList);
 146         if(!b->func)
 147             warn("unknown command %s\n", cfg_getstr(cfgsectmp, "command"));
 148         if(handle_arg)
 149             b->arg = a_strdup(cfg_getstr(cfgsectmp, "arg"));
 150         else
 151             b->arg = NULL;
 152
 153         button_list_push(&head, b);
 154     }
 155
 156     return head;
 157 }
 158
 159
 160 static void
 161 set_key_info(Key *key, cfg_t *cfg)
 162 {
 163     unsigned int j;
 164
 165     for(j = 0; j < cfg_size(cfg, "modkey"); j++)
 166         key->mod |= key_mask_lookup(cfg_getnstr(cfg, "modkey", j));
 167     key->func = name_func_lookup(cfg_getstr(cfg, "command"), UicbList);
 168     if(!key->func)
 169         warn("unknown command %s\n", cfg_getstr(cfg, "command"));
 170 }
 171
 172 static KeySym
 173 key_to_keysym(char *str)
 174 {
 175     KeyCode kc;
 176     int ikc;
 177
 178     if(a_strncmp(str, "#", 1))
 179         return XStringToKeysym(str);
 180
 181     ikc = atoi(str + 1);
 182     memcpy(&kc, &ikc, sizeof(KeyCode));
 183     return XKeycodeToKeysym(globalconf.display, kc, 0);
 184 }
 185
 186 static Key *
 187 section_keys(cfg_t *cfg_keys)
 188 {
 189     Key *key = NULL, *head = NULL;
 190     int i, j, numkeys;
 191     cfg_t *cfgkeytmp;
 192
 193     for(i = cfg_size(cfg_keys, "key") - 1; i >= 0; i--)
 194     {
 195         key = p_new(Key, 1);
 196         cfgkeytmp = cfg_getnsec(cfg_keys, "key", i);
 197         set_key_info(key, cfgkeytmp);
 198         key->keysym = key_to_keysym(cfg_getstr(cfgkeytmp, "key"));
 199         key->arg = a_strdup(cfg_getstr(cfgkeytmp, "arg"));
 200         key_list_push(&head, key);
 201     }
 202
 203     for(i = cfg_size(cfg_keys, "keylist") - 1; i >= 0; i--)
 204     {
 205         cfgkeytmp = cfg_getnsec(cfg_keys, "keylist", i);
 206         numkeys = cfg_size(cfgkeytmp, "keylist");
 207         if(numkeys != (int) cfg_size(cfgkeytmp, "arglist"))
 208         {
 209             warn("number of keys != number of args in keylist");
 210             continue;
 211         }
 212
 213         for(j = 0; j < numkeys; j++)
 214         {
 215             key = p_new(Key, 1);
 216             set_key_info(key, cfgkeytmp);
 217             key->keysym = key_to_keysym(cfg_getnstr(cfgkeytmp, "keylist", j));
 218             key->arg = a_strdup(cfg_getnstr(cfgkeytmp, "arglist", j));
 219             key_list_push(&head, key);
 220         }
 221     }
 222
 223     return head;
 224 }
 225
 226
 227 static int
 228 cmp_widget_cfg(const void *a, const void *b)
 229 {
 230     if (((cfg_t*)a)->line < ((cfg_t*)b)->line)
 231         return -1;
 232
 233     if (((cfg_t*)a)->line > ((cfg_t*)b)->line)
 234         return 1;
 235
 236     return 0;
 237 }
 238
 239 static void
 240 create_widgets(cfg_t* cfg_statusbar, Statusbar *statusbar)
 241 {
 242     cfg_t* widgets, *wptr;
 243     Widget *widget = NULL;
 244     unsigned int i, j, numwidgets = 0;
 245     WidgetConstructor *widget_new;
 246
 247     for(i = 0; WidgetList[i].name; i++)
 248         numwidgets += cfg_size(cfg_statusbar, WidgetList[i].name);
 249
 250     widgets = p_new(cfg_t, numwidgets);
 251     wptr = widgets;
 252
 253     for(i = 0; WidgetList[i].name; i++)
 254         for (j = 0; j < cfg_size(cfg_statusbar, WidgetList[i].name); j++)
 255         {
 256             memcpy(wptr,
 257                    cfg_getnsec(cfg_statusbar, WidgetList[i].name, j),
 258                    sizeof(cfg_t));
 259             wptr++;
 260         }
 261
 262     qsort(widgets, numwidgets, sizeof(cfg_t), cmp_widget_cfg);
 263
 264     for(i = 0; i < numwidgets; i++)
 265     {
 266         wptr = widgets + i;
 267         widget_new = name_func_lookup(cfg_name(wptr), WidgetList);
 268         if(widget_new)
 269         {
 270             widget = widget_new(statusbar, wptr);
 271             widget_list_append(&statusbar->widgets, widget);
 272             widget->buttons = parse_mouse_bindings(wptr, "mouse", a_strcmp(cfg_name(wptr), "taglist"));
 273         }
 274         else
 275             warn("Ignoring unknown widget: %s.\n", cfg_name(widgets + i));
 276     }
 277 }
 278
 279 static void
 280 config_parse_screen(cfg_t *cfg, int screen)
 281 {
 282     char buf[2];
 283     const char *tmp;
 284     Layout *layout = NULL;
 285     Tag *tag = NULL;
 286     Statusbar *statusbar = NULL;
 287     cfg_t *cfg_general, *cfg_colors, *cfg_screen, *cfg_tags,
 288           *cfg_layouts, *cfg_padding, *cfgsectmp;
 289     VirtScreen *virtscreen = &globalconf.screens[screen];
 290     int i, phys_screen = get_phys_screen(screen);
 291
 292     snprintf(buf, sizeof(buf), "%d", screen);
 293     cfg_screen = cfg_gettsec(cfg, "screen", buf);
 294     if(!cfg_screen)
 295         cfg_screen = cfg_getsec(cfg, "screen");
 296
 297     if(!cfg_screen)
 298     {
 299         warn("parsing configuration file failed, no screen section found\n");
 300         cfg_parse_buf(cfg, AWESOME_DEFAULT_CONFIG);
 301         cfg_screen = cfg_getsec(cfg, "screen");
 302     }
 303
 304     /* get screen specific sections */
 305     cfg_tags = cfg_getsec(cfg_screen, "tags");
 306     cfg_colors = cfg_getsec(cfg_screen, "colors");
 307     cfg_general = cfg_getsec(cfg_screen, "general");
 308     cfg_layouts = cfg_getsec(cfg_screen, "layouts");
 309     cfg_padding = cfg_getsec(cfg_screen, "padding");
 310
 311
 312     /* General section */
 313     virtscreen->borderpx = cfg_getint(cfg_general, "border");
 314     virtscreen->snap = cfg_getint(cfg_general, "snap");
 315     virtscreen->resize_hints = cfg_getbool(cfg_general, "resize_hints");
 316     virtscreen->sloppy_focus = cfg_getbool(cfg_general, "sloppy_focus");
 317     virtscreen->sloppy_focus_raise = cfg_getbool(cfg_general, "sloppy_focus_raise");
 318     virtscreen->new_become_master = cfg_getbool(cfg_general, "new_become_master");
 319     virtscreen->new_get_focus = cfg_getbool(cfg_general, "new_get_focus");
 320     virtscreen->font = XftFontOpenName(globalconf.display,
 321                                        phys_screen,
 322                                        cfg_getstr(cfg_general, "font"));
 323     if(!virtscreen->font)
 324         eprint("awesome: cannot init font\n");
 325
 326     /* Colors */
 327     virtscreen->colors_normal[ColBorder] = draw_color_new(globalconf.display, phys_screen,
 328                                                           cfg_getstr(cfg_colors, "normal_border"));
 329     virtscreen->colors_normal[ColBG] = draw_color_new(globalconf.display, phys_screen,
 330                                                       cfg_getstr(cfg_colors, "normal_bg"));
 331     virtscreen->colors_normal[ColFG] = draw_color_new(globalconf.display, phys_screen,
 332                                                       cfg_getstr(cfg_colors, "normal_fg"));
 333     virtscreen->colors_selected[ColBorder] = draw_color_new(globalconf.display, phys_screen,
 334                                                             cfg_getstr(cfg_colors, "focus_border"));
 335     virtscreen->colors_selected[ColBG] = draw_color_new(globalconf.display, phys_screen,
 336                                                         cfg_getstr(cfg_colors, "focus_bg"));
 337     virtscreen->colors_selected[ColFG] = draw_color_new(globalconf.display, phys_screen,
 338                                                         cfg_getstr(cfg_colors, "focus_fg"));
 339     virtscreen->colors_urgent[ColBG] = draw_color_new(globalconf.display, phys_screen,
 340                                                       cfg_getstr(cfg_colors, "urgent_bg"));
 341     virtscreen->colors_urgent[ColFG] = draw_color_new(globalconf.display, phys_screen,
 342                                                       cfg_getstr(cfg_colors, "urgent_fg"));
 343
 344     /* Statusbar */
 345
 346     statusbar_list_init(&virtscreen->statusbar);
 347     for(i = cfg_size(cfg_screen, "statusbar") - 1; i >= 0; i--)
 348     {
 349         statusbar = p_new(Statusbar, 1);
 350         cfgsectmp = cfg_getnsec(cfg_screen, "statusbar", i);
 351         statusbar->position = statusbar->dposition =
 352             statusbar_get_position_from_str(cfg_getstr(cfgsectmp, "position"));
 353         statusbar->height = cfg_getint(cfgsectmp, "height");
 354         statusbar->width = cfg_getint(cfgsectmp, "width");
 355         statusbar->name = a_strdup(cfg_title(cfgsectmp));
 356         statusbar->screen = screen;
 357         statusbar_preinit(statusbar);
 358         create_widgets(cfgsectmp, statusbar);
 359         statusbar_list_push(&virtscreen->statusbar, statusbar);
 360     }
 361
 362     /* Layouts */
 363     layout_list_init(&virtscreen->layouts);
 364     if((i = cfg_size(cfg_layouts, "layout")))
 365         for(--i; i >= 0; i--)
 366         {
 367             layout = p_new(Layout, 1);
 368             cfgsectmp = cfg_getnsec(cfg_layouts, "layout", i);
 369             layout->arrange = name_func_lookup(cfg_title(cfgsectmp), LayoutList);
 370             if(!layout->arrange)
 371             {
 372                 warn("unknown layout %s in configuration file\n", cfg_title(cfgsectmp));
 373                 layout->image = NULL;
 374                 continue;
 375             }
 376             layout->image = a_strdup(cfg_getstr(cfgsectmp, "image"));
 377
 378             layout_list_push(&virtscreen->layouts, layout);
 379         }
 380     else
 381     {
 382         warn("no default layout available\n");
 383         layout->arrange = layout_tile;
 384     }
 385
 386     /* Tags */
 387     tag_list_init(&virtscreen->tags);
 388     if((i = cfg_size(cfg_tags, "tag")))
 389         for(--i; i >= 0; i--)
 390         {
 391             cfgsectmp = cfg_getnsec(cfg_tags, "tag", i);
 392
 393             tmp = cfg_getstr(cfgsectmp, "layout");
 394             for(layout = virtscreen->layouts;
 395                 layout && layout->arrange != name_func_lookup(tmp, LayoutList);
 396                 layout = layout->next);
 397             if(!layout)
 398                 layout = virtscreen->layouts;
 399
 400             tag = tag_new(cfg_title(cfgsectmp),
 401                           layout,
 402                           cfg_getfloat(cfgsectmp, "mwfact"),
 403                           cfg_getint(cfgsectmp, "nmaster"),
 404                           cfg_getint(cfgsectmp, "ncol"));
 405
 406             tag_push_to_screen(tag, screen);
 407         }
 408     else
 409     {
 410         warn("fatal: no tags found in configuration file\n");
 411         tag->name = a_strdup("default");
 412         tag->layout = virtscreen->layouts;
 413         tag->nmaster = 1;
 414         tag->ncol = 1;
 415         tag->mwfact = 0.5;
 416     }
 417
 418     ewmh_update_net_numbers_of_desktop(phys_screen);
 419     ewmh_update_net_current_desktop(phys_screen);
 420     ewmh_update_net_desktop_names(phys_screen);
 421
 422     /* select first tag by default */
 423     virtscreen->tags[0].selected = True;
 424     virtscreen->tags[0].was_selected = True;
 425
 426     /* padding */
 427     virtscreen->padding.top = cfg_getint(cfg_padding, "top");
 428     virtscreen->padding.bottom = cfg_getint(cfg_padding, "bottom");
 429     virtscreen->padding.left = cfg_getint(cfg_padding, "left");
 430     virtscreen->padding.right = cfg_getint(cfg_padding, "right");
 431 }
 432
 433 /** Parse configuration file and initialize some stuff
 434  * \param confpatharg Path to configuration file
 435  */
 436 void
 437 config_parse(const char *confpatharg)
 438 {
 439     cfg_t *cfg, *cfg_rules, *cfg_keys, *cfg_mouse, *cfgsectmp;
 440     int ret, screen, i;
 441     char *confpath;
 442     Rule *rule = NULL;
 443     FILE *defconfig = NULL;
 444
 445     if(confpatharg)
 446         confpath = a_strdup(confpatharg);
 447     else
 448         confpath = config_file();
 449
 450     globalconf.configpath = a_strdup(confpath);
 451
 452     cfg = cfg_init(awesome_opts, CFGF_NONE);
 453
 454     ret = cfg_parse(cfg, confpath);
 455
 456     switch(ret)
 457     {
 458       case CFG_FILE_ERROR:
 459         perror("awesome: parsing configuration file failed");
 460         if(!(defconfig = fopen(confpath, "w")))
 461            perror("awesome: unable to create default configuration file");
 462         break;
 463       case CFG_PARSE_ERROR:
 464         cfg_error(cfg, "awesome: parsing configuration file %s failed.\n", confpath);
 465         break;
 466     }
 467
 468     if(ret != CFG_SUCCESS)
 469     {
 470         warn("using default compile-time configuration\n");
 471         cfg_free(cfg);
 472         cfg = cfg_init(awesome_opts, CFGF_NONE);
 473         cfg_parse_buf(cfg, AWESOME_DEFAULT_CONFIG);
 474     }
 475
 476     /* get the right screen section */
 477     for(screen = 0; screen < globalconf.nscreen; screen++)
 478         config_parse_screen(cfg, screen);
 479
 480     /* get general sections */
 481     cfg_rules = cfg_getsec(cfg, "rules");
 482     cfg_keys = cfg_getsec(cfg, "keys");
 483     cfg_mouse = cfg_getsec(cfg, "mouse");
 484
 485     /* Rules */
 486     rule_list_init(&globalconf.rules);
 487     for(i = cfg_size(cfg_rules, "rule") - 1; i >= 0; i--)
 488     {
 489         rule = p_new(Rule, 1);
 490         cfgsectmp = cfg_getnsec(cfg_rules, "rule", i);
 491         rule->prop_r = rules_compile_regex(cfg_getstr(cfgsectmp, "name"));
 492         rule->tags_r = rules_compile_regex(cfg_getstr(cfgsectmp, "tags"));
 493         rule->xprop = a_strdup(cfg_getstr(cfgsectmp, "xproperty_name"));
 494         rule->xpropval_r = rules_compile_regex(cfg_getstr(cfgsectmp, "xproperty_value"));
 495         rule->icon = a_strdup(cfg_getstr(cfgsectmp, "icon"));
 496         rule->isfloating = rules_get_float_from_str(cfg_getstr(cfgsectmp, "float"));
 497         rule->screen = cfg_getint(cfgsectmp, "screen");
 498         rule->not_master = cfg_getbool(cfgsectmp, "not_master");
 499         rule->opacity = cfg_getfloat(cfgsectmp, "opacity");
 500         if(rule->screen >= globalconf.nscreen)
 501             rule->screen = 0;
 502
 503         rule_list_push(&globalconf.rules, rule);
 504     }
 505
 506     /* Mouse: root window click bindings */
 507     globalconf.buttons.root = parse_mouse_bindings(cfg_mouse, "root", True);
 508
 509     /* Mouse: client windows click bindings */
 510     globalconf.buttons.client = parse_mouse_bindings(cfg_mouse, "client", True);
 511
 512     /* Keys */
 513     globalconf.numlockmask = get_numlockmask(globalconf.display);
 514
 515     globalconf.keys = section_keys(cfg_keys);
 516
 517     if(defconfig)
 518     {
 519         cfg_print(cfg, defconfig);
 520         fclose(defconfig);
 521     }
 522
 523     /* Free! Like a river! */
 524     cfg_free(cfg);
 525     p_delete(&confpath);
 526 }
 527
 528 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80