Dogcows Code - chaz/openbox/blob - obt/link.c

   1 /* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
   2
   3    obt/link.c for the Openbox window manager
   4    Copyright (c) 2009        Dana Jansens
   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    See the COPYING file for a copy of the GNU General Public License.
  17 */
  18
  19 #include "obt/link.h"
  20 #include "obt/ddparse.h"
  21 #include "obt/paths.h"
  22 #include <glib.h>
  23
  24 struct _ObtLink {
  25     guint ref;
  26
  27     ObtLinkType type;
  28     gchar *name; /*!< Specific name for the object (eg Firefox) */
  29     gboolean display; /*<! When false, do not display this link in menus or
  30                            launchers, etc */
  31     gboolean deleted; /*<! When true, the Link could exist but is deleted
  32                            for the current user */
  33     gchar *generic; /*!< Generic name for the object (eg Web Browser) */
  34     gchar *comment; /*!< Comment/description to display for the object */
  35     gchar *icon; /*!< Name/path for an icon for the object */
  36     guint env_required; /*!< The environments that must be present to use this
  37                           link. */
  38     guint env_restricted; /*!< The environments that must _not_ be present to
  39                             use this link. */
  40
  41     union _ObtLinkData {
  42         struct _ObtLinkApp {
  43             gchar *exec; /*!< Executable to run for the app */
  44             gchar *wdir; /*!< Working dir to run the app in */
  45             gboolean term; /*!< Run the app in a terminal or not */
  46             ObtLinkAppOpen open;
  47
  48             /* XXX gchar**? or something better, a mime struct.. maybe
  49                glib has something i can use. */
  50             gchar **mime; /*!< Mime types the app can open */
  51
  52             GQuark *categories; /*!< Array of quarks representing the
  53                                   application's categories */
  54
  55             ObtLinkAppStartup startup;
  56             gchar *startup_wmclass;
  57         } app;
  58         struct _ObtLinkLink {
  59             gchar *addr;
  60         } url;
  61         struct _ObtLinkDir {
  62         } dir;
  63     } d;
  64 };
  65
  66 ObtLink* obt_link_from_ddfile(const gchar *ddname, GSList *paths,
  67                               ObtPaths *p)
  68 {
  69     ObtLink *link;
  70     GHashTable *groups, *keys;
  71     ObtDDParseGroup *g;
  72     ObtDDParseValue *v;
  73
  74     /* parse the file, and get a hash table of the groups */
  75     groups = obt_ddparse_file(ddname, paths);
  76     if (!groups) return NULL; /* parsing failed */
  77     /* grab the Desktop Entry group */
  78     g = g_hash_table_lookup(groups, "Desktop Entry");
  79     g_assert(g != NULL);
  80     /* grab the keys that appeared in the Desktop Entry group */
  81     keys = obt_ddparse_group_keys(g);
  82
  83     /* build the ObtLink (we steal all strings from the parser) */
  84     link = g_slice_new0(ObtLink);
  85     link->ref = 1;
  86     link->display = TRUE;
  87
  88     v = g_hash_table_lookup(keys, "Type");
  89     g_assert(v);
  90     link->type = v->value.enumerable;
  91
  92     if ((v = g_hash_table_lookup(keys, "Hidden")))
  93         link->deleted = v->value.boolean;
  94
  95     if ((v = g_hash_table_lookup(keys, "NoDisplay")))
  96         link->display = !v->value.boolean;
  97
  98     if ((v = g_hash_table_lookup(keys, "GenericName")))
  99         link->generic = v->value.string, v->value.string = NULL;
 100
 101     if ((v = g_hash_table_lookup(keys, "Comment")))
 102         link->comment = v->value.string, v->value.string = NULL;
 103
 104     if ((v = g_hash_table_lookup(keys, "Icon")))
 105         link->icon = v->value.string, v->value.string = NULL;
 106
 107     if ((v = g_hash_table_lookup(keys, "OnlyShowIn")))
 108         link->env_required = v->value.environments;
 109     else
 110         link->env_required = 0;
 111
 112     if ((v = g_hash_table_lookup(keys, "NotShowIn")))
 113         link->env_restricted = v->value.environments;
 114     else
 115         link->env_restricted = 0;
 116
 117     /* type-specific keys */
 118
 119     if (link->type == OBT_LINK_TYPE_APPLICATION) {
 120         gchar *c;
 121         gboolean percent;
 122
 123         v = g_hash_table_lookup(keys, "Exec");
 124         g_assert(v);
 125         link->d.app.exec = v->value.string;
 126         v->value.string = NULL;
 127
 128         /* parse link->d.app.exec to determine link->d.app.open */
 129         percent = FALSE;
 130         for (c = link->d.app.exec; *c; ++c) {
 131             if (*c == '%') percent = !percent;
 132             if (percent) {
 133                 switch (*c) {
 134                 case 'f': link->d.app.open = OBT_LINK_APP_SINGLE_LOCAL; break;
 135                 case 'F': link->d.app.open = OBT_LINK_APP_MULTI_LOCAL; break;
 136                 case 'u': link->d.app.open = OBT_LINK_APP_SINGLE_URL; break;
 137                 case 'U': link->d.app.open = OBT_LINK_APP_MULTI_URL; break;
 138                 }
 139             }
 140         }
 141
 142         if ((v = g_hash_table_lookup(keys, "TryExec"))) {
 143             /* XXX spawn a thread to check TryExec? */
 144             link->display = link->display &&
 145                 obt_paths_try_exec(p, v->value.string);
 146         }
 147
 148         if ((v = g_hash_table_lookup(keys, "Path"))) {
 149             /* steal the string */
 150             link->d.app.wdir = v->value.string;
 151             v->value.string = NULL;
 152         }
 153
 154         if ((v = g_hash_table_lookup(keys, "Terminal")))
 155             link->d.app.term = v->value.boolean;
 156
 157         if ((v = g_hash_table_lookup(keys, "StartupNotify")))
 158             link->d.app.startup = v->value.boolean ?
 159                 OBT_LINK_APP_STARTUP_PROTOCOL_SUPPORT :
 160                 OBT_LINK_APP_STARTUP_NO_SUPPORT;
 161         else {
 162             link->d.app.startup = OBT_LINK_APP_STARTUP_LEGACY_SUPPORT;
 163             if ((v = g_hash_table_lookup(keys, "StartupWMClass"))) {
 164                 /* steal the string */
 165                 link->d.app.startup_wmclass = v->value.string;
 166                 v->value.string = NULL;
 167             }
 168         }
 169
 170         if ((v = g_hash_table_lookup(keys, "Categories"))) {
 171             gulong i;
 172             gchar *end;
 173
 174             link->d.app.categories = g_new(GQuark, v->value.strings.n);
 175
 176             c = end = v->value.strings.s;
 177             for (i = 0; i < v->value.strings.n; ++i) {
 178                 while (*end) ++end;
 179                 link->d.app.categories[i] = g_quark_from_string(c);
 180                 c = end = end+1; /* next */
 181             }
 182         }
 183
 184         /* XXX do something with mime types */
 185     }
 186     else if (link->type == OBT_LINK_TYPE_URL) {
 187         v = g_hash_table_lookup(keys, "URL");
 188         g_assert(v);
 189         link->d.url.addr = v->value.string;
 190         v->value.string = NULL;
 191     }
 192
 193     /* destroy the parsing info */
 194     g_hash_table_destroy(groups);
 195
 196     return link;
 197 }
 198
 199 void obt_link_ref(ObtLink *dd)
 200 {
 201     ++dd->ref;
 202 }
 203
 204 void obt_link_unref(ObtLink *dd)
 205 {
 206     if (--dd->ref < 1) {
 207         g_free(dd->name);
 208         g_free(dd->generic);
 209         g_free(dd->comment);
 210         g_free(dd->icon);
 211         if (dd->type == OBT_LINK_TYPE_APPLICATION) {
 212             g_free(dd->d.app.exec);
 213             g_free(dd->d.app.wdir);
 214             g_free(dd->d.app.categories);
 215             g_free(dd->d.app.startup_wmclass);
 216         }
 217         else if (dd->type == OBT_LINK_TYPE_URL)
 218             g_free(dd->d.url.addr);
 219         g_slice_free(ObtLink, dd);
 220     }
 221 }