Dogcows Code - chaz/openbox/blob - openbox/actions.c

   1 /* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
   2
   3    actions.h for the Openbox window manager
   4    Copyright (c) 2007        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 "actions.h"
  20 #include "gettext.h"
  21
  22 static void actions_definition_ref(ObActionsDefinition *def);
  23 static void actions_definition_unref(ObActionsDefinition *def);
  24
  25 struct _ObActionsDefinition {
  26     guint ref;
  27
  28     gchar *name;
  29     gboolean allow_interactive;
  30
  31     ObActionsDataSetupFunc setup;
  32     ObActionsDataFreeFunc free;
  33     ObActionsRunFunc run;
  34 };
  35
  36 struct _ObActionsAct {
  37     guint ref;
  38
  39     ObActionsDefinition *def;
  40
  41     gpointer options;
  42 };
  43
  44 static GSList *registered = NULL;
  45
  46
  47 void actions_startup(gboolean reconfig)
  48 {
  49     if (reconfig) return;
  50
  51
  52 }
  53
  54 void actions_shutdown(gboolean reconfig)
  55 {
  56     if (reconfig) return;
  57
  58     /* free all the registered actions */
  59     while (registered) {
  60         actions_definition_unref(registered->data);
  61         registered = g_slist_delete_link(registered, registered);
  62     }
  63 }
  64
  65 gboolean actions_register(const gchar *name,
  66                           gboolean allow_interactive,
  67                           ObActionsDataSetupFunc setup,
  68                           ObActionsDataFreeFunc free,
  69                           ObActionsRunFunc run)
  70 {
  71     GSList *it;
  72     ObActionsDefinition *def;
  73
  74     for (it = registered; it; it = g_slist_next(it)) {
  75         def = it->data;
  76         if (!g_ascii_strcasecmp(name, def->name)) /* already registered */
  77             return FALSE;
  78     }
  79
  80     def = g_new(ObActionsDefinition, 1);
  81     def->ref = 1;
  82     def->name = g_strdup(name);
  83     def->allow_interactive = allow_interactive;
  84     def->setup = setup;
  85     def->free = free;
  86     def->run = run;
  87     return TRUE;
  88 }
  89
  90 static void actions_definition_ref(ObActionsDefinition *def)
  91 {
  92     ++def->ref;
  93 }
  94
  95 static void actions_definition_unref(ObActionsDefinition *def)
  96 {
  97     if (def && --def->ref == 0) {
  98         g_free(def->name);
  99         g_free(def);
 100     }
 101 }
 102
 103 ObActionsAct* actions_parse_string(const gchar *name)
 104 {
 105     GSList *it;
 106     ObActionsDefinition *def;
 107     ObActionsAct *act = NULL;
 108
 109     /* find the requested action */
 110     for (it = registered; it; it = g_slist_next(it)) {
 111         def = it->data;
 112         if (!g_ascii_strcasecmp(name, def->name))
 113             break;
 114         def = NULL;
 115     }
 116
 117     /* if we found the action */
 118     if (def) {
 119         act = g_new(ObActionsAct, 1);
 120         act->ref = 1;
 121         act->def = def;
 122         actions_definition_ref(act->def);
 123         act->options = NULL;
 124     } else
 125         g_message(_("Invalid action '%s' requested. No such action exists."),
 126                   name);
 127
 128     return act;
 129 }
 130
 131 ObActionsAct* actions_parse(ObParseInst *i,
 132                             xmlDocPtr doc,
 133                             xmlNodePtr node)
 134 {
 135     gchar *name;
 136     ObActionsAct *act = NULL;
 137
 138     if (parse_attr_string("name", node, &name)) {
 139         if ((act = actions_parse_string(name)))
 140             /* there is more stuff to parse here */
 141             act->options = act->def->setup(i, doc, node->children);
 142
 143         g_free(name);
 144     }
 145
 146     return act;
 147 }
 148
 149 void actions_act_ref(ObActionsAct *act)
 150 {
 151     ++act->ref;
 152 }
 153
 154 void actions_act_unref(ObActionsAct *act)
 155 {
 156     if (act && --act->ref == 0) {
 157         /* free the action specific options */
 158         act->def->free(act->options);
 159         /* unref the definition */
 160         actions_definition_unref(act->def);
 161         g_free(act);
 162     }
 163 }