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             ObtLinkAppStartup startup;
  53             gchar *startup_wmclass;
  54         } app;
  55         struct _ObtLinkLink {
  56             gchar *addr;
  57         } url;
  58         struct _ObtLinkDir {
  59         } dir;
  60     } d;
  61 };
  62
  63 ObtLink* obt_link_from_ddfile(const gchar *ddname, GSList *paths,
  64                               ObtPaths *p)
  65 {
  66     ObtLink *link;
  67     GHashTable *groups, *keys;
  68     ObtDDParseGroup *g;
  69     ObtDDParseValue *v;
  70
  71     /* parse the file, and get a hash table of the groups */
  72     groups = obt_ddparse_file(ddname, paths);
  73     if (!groups) return NULL; /* parsing failed */
  74     /* grab the Desktop Entry group */
  75     g = g_hash_table_lookup(groups, "Desktop Entry");
  76     g_assert(g != NULL);
  77     /* grab the keys that appeared in the Desktop Entry group */
  78     keys = obt_ddparse_group_keys(g);
  79
  80     /* build the ObtLink (we steal all strings from the parser) */
  81     link = g_slice_new0(ObtLink);
  82     link->ref = 1;
  83     link->display = TRUE;
  84
  85     v = g_hash_table_lookup(keys, "Type");
  86     g_assert(v);
  87     link->type = v->value.enumerable;
  88
  89     if ((v = g_hash_table_lookup(keys, "Hidden")))
  90         link->deleted = v->value.boolean;
  91
  92     if ((v = g_hash_table_lookup(keys, "NoDisplay")))
  93         link->display = !v->value.boolean;
  94
  95     if ((v = g_hash_table_lookup(keys, "GenericName")))
  96         link->generic = v->value.string, v->value.string = NULL;
  97
  98     if ((v = g_hash_table_lookup(keys, "Comment")))
  99         link->comment = v->value.string, v->value.string = NULL;
 100
 101     if ((v = g_hash_table_lookup(keys, "Icon")))
 102         link->icon = v->value.string, v->value.string = NULL;
 103
 104     if ((v = g_hash_table_lookup(keys, "OnlyShowIn")))
 105         link->env_required = v->value.environments;
 106     else
 107         link->env_required = 0;
 108
 109     if ((v = g_hash_table_lookup(keys, "NotShowIn")))
 110         link->env_restricted = v->value.environments;
 111     else
 112         link->env_restricted = 0;
 113
 114     /* type-specific keys */
 115
 116     if (link->type == OBT_LINK_TYPE_APPLICATION) {
 117         gchar *c;
 118         gboolean percent;
 119
 120         v = g_hash_table_lookup(keys, "Exec");
 121         g_assert(v);
 122         link->d.app.exec = v->value.string;
 123         v->value.string = NULL;
 124
 125         /* parse link->d.app.exec to determine link->d.app.open */
 126         percent = FALSE;
 127         for (c = link->d.app.exec; *c; ++c) {
 128             if (*c == '%') percent = !percent;
 129             if (percent) {
 130                 switch (*c) {
 131                 case 'f': link->d.app.open = OBT_LINK_APP_SINGLE_LOCAL; break;
 132                 case 'F': link->d.app.open = OBT_LINK_APP_MULTI_LOCAL; break;
 133                 case 'u': link->d.app.open = OBT_LINK_APP_SINGLE_URL; break;
 134                 case 'U': link->d.app.open = OBT_LINK_APP_MULTI_URL; break;
 135                 }
 136             }
 137         }
 138
 139         if ((v = g_hash_table_lookup(keys, "TryExec"))) {
 140             /* XXX spawn a thread to check TryExec? */
 141             link->display = link->display &&
 142                 obt_paths_try_exec(p, v->value.string);
 143         }
 144
 145         if ((v = g_hash_table_lookup(keys, "Path"))) {
 146             /* steal the string */
 147             link->d.app.wdir = v->value.string;
 148             v->value.string = NULL;
 149         }
 150
 151         if ((v = g_hash_table_lookup(keys, "Terminal")))
 152             link->d.app.term = v->value.boolean;
 153
 154         if ((v = g_hash_table_lookup(keys, "StartupNotify")))
 155             link->d.app.startup = v->value.boolean ?
 156                 OBT_LINK_APP_STARTUP_PROTOCOL_SUPPORT :
 157                 OBT_LINK_APP_STARTUP_NO_SUPPORT;
 158         else {
 159             link->d.app.startup = OBT_LINK_APP_STARTUP_LEGACY_SUPPORT;
 160             if ((v = g_hash_table_lookup(keys, "StartupWMClass"))) {
 161                 /* steal the string */
 162                 link->d.app.startup_wmclass = v->value.string;
 163                 v->value.string = NULL;
 164             }
 165         }
 166
 167         /* XXX there's more app specific stuff */
 168     }
 169     else if (link->type == OBT_LINK_TYPE_URL) {
 170         v = g_hash_table_lookup(keys, "URL");
 171         g_assert(v);
 172         link->d.url.addr = v->value.string;
 173         v->value.string = NULL;
 174     }
 175
 176     return link;
 177 }
 178
 179 void obt_link_ref(ObtLink *dd)
 180 {
 181     ++dd->ref;
 182 }
 183
 184 void obt_link_unref(ObtLink *dd)
 185 {
 186     if (--dd->ref < 1) {
 187         g_slice_free(ObtLink, dd);
 188     }
 189 }