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             gchar **mime; /*!< Mime types the app can open */
  49
  50             GQuark *categories; /*!< Array of quarks representing the
  51                                   application's categories */
  52             gulong  n_categories; /*!< Number of categories for the app */
  53
  54             ObtLinkAppStartup startup;
  55             gchar *startup_wmclass;
  56         } app;
  57         struct _ObtLinkLink {
  58             gchar *addr;
  59         } url;
  60         struct _ObtLinkDir {
  61         } dir;
  62     } d;
  63 };
  64
  65 ObtLink* obt_link_from_ddfile(const gchar *ddname, GSList *paths,
  66                               ObtPaths *p)
  67 {
  68     ObtLink *link;
  69     GHashTable *groups, *keys;
  70     ObtDDParseGroup *g;
  71     ObtDDParseValue *v;
  72
  73     /* parse the file, and get a hash table of the groups */
  74     groups = obt_ddparse_file(ddname, paths);
  75     if (!groups) return NULL; /* parsing failed */
  76     /* grab the Desktop Entry group */
  77     g = g_hash_table_lookup(groups, "Desktop Entry");
  78     g_assert(g != NULL);
  79     /* grab the keys that appeared in the Desktop Entry group */
  80     keys = obt_ddparse_group_keys(g);
  81
  82     /* build the ObtLink (we steal all strings from the parser) */
  83     link = g_slice_new0(ObtLink);
  84     link->ref = 1;
  85     link->display = TRUE;
  86
  87     v = g_hash_table_lookup(keys, "Type");
  88     g_assert(v);
  89     link->type = v->value.enumerable;
  90
  91     if ((v = g_hash_table_lookup(keys, "Hidden")))
  92         link->deleted = v->value.boolean;
  93
  94     if ((v = g_hash_table_lookup(keys, "NoDisplay")))
  95         link->display = !v->value.boolean;
  96
  97     if ((v = g_hash_table_lookup(keys, "GenericName")))
  98         link->generic = v->value.string, v->value.string = NULL;
  99
 100     if ((v = g_hash_table_lookup(keys, "Comment")))
 101         link->comment = v->value.string, v->value.string = NULL;
 102
 103     if ((v = g_hash_table_lookup(keys, "Icon")))
 104         link->icon = v->value.string, v->value.string = NULL;
 105
 106     if ((v = g_hash_table_lookup(keys, "OnlyShowIn")))
 107         link->env_required = v->value.environments;
 108     else
 109         link->env_required = 0;
 110
 111     if ((v = g_hash_table_lookup(keys, "NotShowIn")))
 112         link->env_restricted = v->value.environments;
 113     else
 114         link->env_restricted = 0;
 115
 116     /* type-specific keys */
 117
 118     if (link->type == OBT_LINK_TYPE_APPLICATION) {
 119         gchar *c;
 120         gboolean percent;
 121
 122         v = g_hash_table_lookup(keys, "Exec");
 123         g_assert(v);
 124         link->d.app.exec = v->value.string;
 125         v->value.string = NULL;
 126
 127         /* parse link->d.app.exec to determine link->d.app.open */
 128         percent = FALSE;
 129         for (c = link->d.app.exec; *c; ++c) {
 130             if (percent) {
 131                 switch (*c) {
 132                 case 'f': link->d.app.open = OBT_LINK_APP_SINGLE_LOCAL; break;
 133                 case 'F': link->d.app.open = OBT_LINK_APP_MULTI_LOCAL; break;
 134                 case 'u': link->d.app.open = OBT_LINK_APP_SINGLE_URL; break;
 135                 case 'U': link->d.app.open = OBT_LINK_APP_MULTI_URL; break;
 136                 default: percent = FALSE;
 137                 }
 138                 if (percent) break; /* found f/F/u/U */
 139             }
 140             else if (*c == '%') percent = TRUE;
 141         }
 142
 143         if ((v = g_hash_table_lookup(keys, "TryExec"))) {
 144             /* XXX spawn a thread to check TryExec? */
 145             link->display = link->display &&
 146                 obt_paths_try_exec(p, v->value.string);
 147         }
 148
 149         if ((v = g_hash_table_lookup(keys, "Path"))) {
 150             /* steal the string */
 151             link->d.app.wdir = v->value.string;
 152             v->value.string = NULL;
 153         }
 154
 155         if ((v = g_hash_table_lookup(keys, "Terminal")))
 156             link->d.app.term = v->value.boolean;
 157
 158         if ((v = g_hash_table_lookup(keys, "StartupNotify")))
 159             link->d.app.startup = v->value.boolean ?
 160                 OBT_LINK_APP_STARTUP_PROTOCOL_SUPPORT :
 161                 OBT_LINK_APP_STARTUP_NO_SUPPORT;
 162         else {
 163             link->d.app.startup = OBT_LINK_APP_STARTUP_LEGACY_SUPPORT;
 164             if ((v = g_hash_table_lookup(keys, "StartupWMClass"))) {
 165                 /* steal the string */
 166                 link->d.app.startup_wmclass = v->value.string;
 167                 v->value.string = NULL;
 168             }
 169         }
 170
 171         if ((v = g_hash_table_lookup(keys, "Categories"))) {
 172             gulong i;
 173             gchar *end;
 174
 175             link->d.app.categories = g_new(GQuark, v->value.strings.n);
 176             link->d.app.n_categories = v->value.strings.n;
 177
 178             for (i = 0; i < v->value.strings.n; ++i) {
 179                 link->d.app.categories[i] =
 180                     g_quark_from_string(v->value.strings.a[i]);
 181                 c = end = end+1; /* next */
 182             }
 183         }
 184
 185         if ((v = g_hash_table_lookup(keys, "MimeType"))) {
 186             /* steal the string array */
 187             link->d.app.mime = v->value.strings.a;
 188             v->value.strings.a = NULL;
 189             v->value.strings.n = 0;
 190         }
 191     }
 192     else if (link->type == OBT_LINK_TYPE_URL) {
 193         v = g_hash_table_lookup(keys, "URL");
 194         g_assert(v);
 195         link->d.url.addr = v->value.string;
 196         v->value.string = NULL;
 197     }
 198
 199     /* destroy the parsing info */
 200     g_hash_table_destroy(groups);
 201
 202     return link;
 203 }
 204
 205 void obt_link_ref(ObtLink *dd)
 206 {
 207     ++dd->ref;
 208 }
 209
 210 void obt_link_unref(ObtLink *dd)
 211 {
 212     if (--dd->ref < 1) {
 213         g_free(dd->name);
 214         g_free(dd->generic);
 215         g_free(dd->comment);
 216         g_free(dd->icon);
 217         if (dd->type == OBT_LINK_TYPE_APPLICATION) {
 218             g_free(dd->d.app.exec);
 219             g_free(dd->d.app.wdir);
 220             g_strfreev(dd->d.app.mime);
 221             g_free(dd->d.app.categories);
 222             g_free(dd->d.app.startup_wmclass);
 223         }
 224         else if (dd->type == OBT_LINK_TYPE_URL)
 225             g_free(dd->d.url.addr);
 226         g_slice_free(ObtLink, dd);
 227     }
 228 }
 229
 230 const GQuark* obt_link_app_categories(ObtLink *e, gulong *n)
 231 {
 232     g_return_val_if_fail(e != NULL, NULL);
 233     g_return_val_if_fail(e->type == OBT_LINK_TYPE_APPLICATION, NULL);
 234     g_return_val_if_fail(n != NULL, NULL);
 235
 236     *n = e->d.app.n_categories;
 237     return e->d.app.categories;
 238 }