[134] | 1 | /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- |
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| 2 | * |
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| 3 | * Copyright (C) 2008 Red Hat, Inc. |
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| 4 | * |
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| 5 | * This program is free software; you can redistribute it and/or modify |
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| 6 | * it under the terms of the GNU General Public License as published by |
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| 7 | * the Free Software Foundation; either version 2 of the License, or |
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| 8 | * (at your option) any later version. |
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| 9 | * |
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| 10 | * This program is distributed in the hope that it will be useful, |
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 13 | * GNU General Public License for more details. |
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| 14 | * |
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| 15 | * You should have received a copy of the GNU General Public License |
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| 16 | * along with this program; if not, write to the Free Software |
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| 17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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| 18 | * |
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| 19 | * Written by: Ray Strode <rstrode@redhat.com> |
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| 20 | */ |
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| 21 | |
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| 22 | #include "config.h" |
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| 23 | |
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| 24 | #include <stdlib.h> |
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| 25 | #include <stdio.h> |
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| 26 | #include <unistd.h> |
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| 27 | #include <string.h> |
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| 28 | #include <errno.h> |
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| 29 | #include <dirent.h> |
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| 30 | #include <sys/stat.h> |
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| 31 | |
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| 32 | #include <glib.h> |
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| 33 | #include <glib/gi18n.h> |
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| 34 | #include <glib/gstdio.h> |
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| 35 | #include <gtk/gtk.h> |
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| 36 | |
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| 37 | #include <gconf/gconf-client.h> |
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| 38 | |
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| 39 | #include "gdm-recent-option-widget.h" |
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| 40 | |
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| 41 | #define GDM_RECENT_OPTION_WIDGET_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GDM_TYPE_RECENT_OPTION_WIDGET, GdmRecentOptionWidgetPrivate)) |
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| 42 | |
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| 43 | struct GdmRecentOptionWidgetPrivate |
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| 44 | { |
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| 45 | GConfClient *gconf_client; |
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| 46 | char *gconf_key; |
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| 47 | guint notification_id; |
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| 48 | GdmRecentOptionLookupItemFunc lookup_item_func; |
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| 49 | |
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| 50 | int max_item_count; |
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| 51 | }; |
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| 52 | |
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| 53 | enum { |
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| 54 | PROP_0, |
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| 55 | PROP_MAX_ITEM_COUNT, |
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| 56 | }; |
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| 57 | |
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| 58 | enum { |
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| 59 | NUMBER_OF_SIGNALS |
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| 60 | }; |
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| 61 | |
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| 62 | static void gdm_recent_option_widget_class_init (GdmRecentOptionWidgetClass *klass); |
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| 63 | static void gdm_recent_option_widget_init (GdmRecentOptionWidget *option_widget); |
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| 64 | static void gdm_recent_option_widget_finalize (GObject *object); |
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| 65 | |
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| 66 | G_DEFINE_TYPE (GdmRecentOptionWidget, gdm_recent_option_widget, GDM_TYPE_OPTION_WIDGET) |
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| 67 | |
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| 68 | static GSList * |
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| 69 | gdm_recent_option_widget_get_list_from_gconf (GdmRecentOptionWidget *widget) |
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| 70 | { |
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| 71 | GConfValue *value; |
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| 72 | GSList *value_list; |
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| 73 | GSList *list; |
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| 74 | GSList *tmp; |
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| 75 | GError *lookup_error; |
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| 76 | |
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| 77 | lookup_error = NULL; |
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| 78 | value = gconf_client_get (widget->priv->gconf_client, |
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| 79 | widget->priv->gconf_key, |
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| 80 | &lookup_error); |
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| 81 | |
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| 82 | if (lookup_error != NULL) { |
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| 83 | g_warning ("could not get gconf key '%s': %s", |
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| 84 | widget->priv->gconf_key, |
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| 85 | lookup_error->message); |
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| 86 | g_error_free (lookup_error); |
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| 87 | return NULL; |
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| 88 | } |
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| 89 | |
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| 90 | if (value == NULL) { |
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| 91 | g_warning ("gconf key '%s' is unset", |
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| 92 | widget->priv->gconf_key); |
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| 93 | return NULL; |
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| 94 | } |
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| 95 | |
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| 96 | if (value->type != GCONF_VALUE_LIST || |
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| 97 | gconf_value_get_list_type (value) != GCONF_VALUE_STRING) { |
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| 98 | g_warning ("gconf key is not a list of strings"); |
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| 99 | return NULL; |
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| 100 | } |
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| 101 | |
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| 102 | value_list = gconf_value_get_list (value); |
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| 103 | |
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| 104 | list = NULL; |
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| 105 | for (tmp = value_list; tmp != NULL; tmp = tmp->next) { |
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| 106 | const char *id; |
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| 107 | |
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| 108 | id = gconf_value_get_string ((GConfValue *)tmp->data); |
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| 109 | |
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| 110 | list = g_slist_prepend (list, g_strdup (id)); |
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| 111 | } |
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| 112 | list = g_slist_reverse (list); |
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| 113 | |
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| 114 | gconf_value_free (value); |
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| 115 | |
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| 116 | return list; |
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| 117 | } |
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| 118 | |
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| 119 | static GSList * |
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| 120 | truncate_list (GSList *list, |
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| 121 | int size) |
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| 122 | { |
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| 123 | GSList *tmp; |
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| 124 | GSList *next_node; |
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| 125 | |
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| 126 | tmp = g_slist_nth (list, size); |
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| 127 | do { |
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| 128 | next_node = tmp->next; |
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| 129 | |
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| 130 | g_free (tmp->data); |
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| 131 | list = g_slist_delete_link (list, tmp); |
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| 132 | tmp = next_node; |
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| 133 | } while (tmp != NULL); |
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| 134 | |
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| 135 | return list; |
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| 136 | } |
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| 137 | |
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| 138 | static void |
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| 139 | gdm_recent_option_widget_sync_items_from_gconf (GdmRecentOptionWidget *widget) |
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| 140 | { |
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| 141 | GSList *list; |
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| 142 | GSList *tmp; |
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| 143 | gboolean default_is_set; |
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| 144 | |
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| 145 | list = gdm_recent_option_widget_get_list_from_gconf (widget); |
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| 146 | |
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| 147 | if (widget->priv->max_item_count > 0 && g_slist_length (list) > widget->priv->max_item_count) { |
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| 148 | list = truncate_list (list, widget->priv->max_item_count); |
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| 149 | gconf_client_set_list (widget->priv->gconf_client, |
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| 150 | widget->priv->gconf_key, |
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| 151 | GCONF_VALUE_STRING, list, NULL); |
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| 152 | g_slist_foreach (list, (GFunc) g_free, NULL); |
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| 153 | g_slist_free (list); |
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| 154 | |
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| 155 | list = gdm_recent_option_widget_get_list_from_gconf (widget); |
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| 156 | } |
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| 157 | |
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| 158 | gdm_option_widget_remove_all_items (GDM_OPTION_WIDGET (widget)); |
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| 159 | default_is_set = FALSE; |
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| 160 | |
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| 161 | for (tmp = list; tmp != NULL; tmp = tmp->next) { |
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| 162 | const char *key; |
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| 163 | char *id; |
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| 164 | char *name; |
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| 165 | char *comment; |
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| 166 | |
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| 167 | key = (char *) tmp->data; |
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| 168 | |
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| 169 | id = widget->priv->lookup_item_func (widget, key, &name, &comment); |
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| 170 | |
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| 171 | if (id != NULL) { |
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| 172 | gboolean item_exists; |
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| 173 | |
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| 174 | item_exists = gdm_option_widget_lookup_item (GDM_OPTION_WIDGET (widget), id, NULL, NULL, NULL); |
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| 175 | |
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| 176 | if (item_exists) { |
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| 177 | continue; |
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| 178 | } |
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| 179 | |
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| 180 | gdm_option_widget_add_item (GDM_OPTION_WIDGET (widget), |
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| 181 | id, name, comment, |
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| 182 | GDM_OPTION_WIDGET_POSITION_MIDDLE); |
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| 183 | if (!default_is_set) { |
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| 184 | gdm_option_widget_set_active_item (GDM_OPTION_WIDGET (widget), |
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| 185 | id); |
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| 186 | default_is_set = TRUE; |
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| 187 | } |
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| 188 | |
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| 189 | g_free (name); |
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| 190 | g_free (comment); |
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| 191 | g_free (id); |
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| 192 | } |
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| 193 | } |
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| 194 | |
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| 195 | g_slist_foreach (list, (GFunc) g_free, NULL); |
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| 196 | g_slist_free (list); |
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| 197 | } |
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| 198 | |
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| 199 | static void |
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| 200 | gdm_recent_option_widget_notify_func (GConfClient *client, |
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| 201 | guint connection_id, |
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| 202 | GConfEntry *entry, |
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| 203 | gpointer user_data) |
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| 204 | { |
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| 205 | gdm_recent_option_widget_sync_items_from_gconf (GDM_RECENT_OPTION_WIDGET (user_data)); |
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| 206 | } |
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| 207 | |
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| 208 | gboolean |
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| 209 | gdm_recent_option_widget_set_gconf_key (GdmRecentOptionWidget *widget, |
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| 210 | const char *gconf_key, |
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| 211 | GdmRecentOptionLookupItemFunc lookup_item_func, |
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| 212 | GError **error) |
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| 213 | { |
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| 214 | GError *notify_error; |
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| 215 | |
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| 216 | if (widget->priv->gconf_key != NULL && |
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| 217 | strcmp (widget->priv->gconf_key, gconf_key) == 0) { |
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| 218 | return TRUE; |
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| 219 | } |
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| 220 | |
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| 221 | if (widget->priv->notification_id != 0) { |
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| 222 | gconf_client_notify_remove (widget->priv->gconf_client, |
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| 223 | widget->priv->notification_id); |
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| 224 | |
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| 225 | widget->priv->notification_id = 0; |
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| 226 | } |
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| 227 | |
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| 228 | g_free (widget->priv->gconf_key); |
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| 229 | widget->priv->gconf_key = g_strdup (gconf_key); |
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| 230 | |
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| 231 | widget->priv->lookup_item_func = lookup_item_func; |
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| 232 | |
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| 233 | gdm_recent_option_widget_sync_items_from_gconf (widget); |
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| 234 | |
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| 235 | notify_error = NULL; |
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| 236 | widget->priv->notification_id = gconf_client_notify_add (widget->priv->gconf_client, |
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| 237 | gconf_key, |
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| 238 | (GConfClientNotifyFunc) |
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| 239 | gdm_recent_option_widget_notify_func, |
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| 240 | widget, NULL, ¬ify_error); |
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| 241 | if (notify_error != NULL) { |
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| 242 | g_propagate_error (error, notify_error); |
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| 243 | return FALSE; |
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| 244 | } |
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| 245 | |
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| 246 | return TRUE; |
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| 247 | } |
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| 248 | |
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| 249 | static void |
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| 250 | gdm_recent_option_widget_dispose (GObject *object) |
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| 251 | { |
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| 252 | G_OBJECT_CLASS (gdm_recent_option_widget_parent_class)->dispose (object); |
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| 253 | } |
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| 254 | |
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| 255 | static void |
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| 256 | gdm_recent_option_widget_set_property (GObject *object, |
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| 257 | guint prop_id, |
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| 258 | const GValue *value, |
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| 259 | GParamSpec *pspec) |
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| 260 | { |
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| 261 | GdmRecentOptionWidget *self; |
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| 262 | |
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| 263 | self = GDM_RECENT_OPTION_WIDGET (object); |
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| 264 | |
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| 265 | switch (prop_id) { |
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| 266 | case PROP_MAX_ITEM_COUNT: |
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| 267 | self->priv->max_item_count = g_value_get_int (value); |
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| 268 | break; |
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| 269 | |
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| 270 | default: |
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| 271 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
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| 272 | break; |
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| 273 | } |
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| 274 | } |
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| 275 | |
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| 276 | static void |
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| 277 | gdm_recent_option_widget_get_property (GObject *object, |
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| 278 | guint prop_id, |
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| 279 | GValue *value, |
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| 280 | GParamSpec *pspec) |
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| 281 | { |
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| 282 | GdmRecentOptionWidget *self; |
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| 283 | |
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| 284 | self = GDM_RECENT_OPTION_WIDGET (object); |
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| 285 | |
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| 286 | switch (prop_id) { |
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| 287 | case PROP_MAX_ITEM_COUNT: |
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| 288 | g_value_set_int (value, |
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| 289 | self->priv->max_item_count); |
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| 290 | break; |
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| 291 | default: |
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| 292 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
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| 293 | break; |
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| 294 | } |
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| 295 | } |
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| 296 | |
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| 297 | static void |
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| 298 | gdm_recent_option_widget_class_init (GdmRecentOptionWidgetClass *klass) |
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| 299 | { |
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| 300 | GObjectClass *object_class = G_OBJECT_CLASS (klass); |
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| 301 | |
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| 302 | object_class->get_property = gdm_recent_option_widget_get_property; |
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| 303 | object_class->set_property = gdm_recent_option_widget_set_property; |
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| 304 | object_class->dispose = gdm_recent_option_widget_dispose; |
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| 305 | object_class->finalize = gdm_recent_option_widget_finalize; |
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| 306 | |
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| 307 | g_object_class_install_property (object_class, |
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| 308 | PROP_MAX_ITEM_COUNT, |
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| 309 | g_param_spec_int ("max-item-count", |
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| 310 | _("Max Item Count"), |
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| 311 | _("The maximum number of items to keep around in the list"), |
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| 312 | 0, G_MAXINT, 5, |
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| 313 | (G_PARAM_READWRITE | |
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| 314 | G_PARAM_CONSTRUCT))); |
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| 315 | |
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| 316 | |
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| 317 | g_type_class_add_private (klass, sizeof (GdmRecentOptionWidgetPrivate)); |
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| 318 | } |
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| 319 | |
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| 320 | static void |
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| 321 | gdm_recent_option_widget_init (GdmRecentOptionWidget *widget) |
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| 322 | { |
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| 323 | widget->priv = GDM_RECENT_OPTION_WIDGET_GET_PRIVATE (widget); |
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| 324 | |
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| 325 | widget->priv->gconf_client = gconf_client_get_default (); |
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| 326 | widget->priv->max_item_count = 5; |
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| 327 | } |
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| 328 | |
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| 329 | static void |
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| 330 | gdm_recent_option_widget_finalize (GObject *object) |
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| 331 | { |
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| 332 | GdmRecentOptionWidget *widget; |
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| 333 | |
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| 334 | g_return_if_fail (object != NULL); |
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| 335 | g_return_if_fail (GDM_IS_OPTION_WIDGET (object)); |
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| 336 | |
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| 337 | widget = GDM_RECENT_OPTION_WIDGET (object); |
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| 338 | |
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| 339 | g_return_if_fail (widget->priv != NULL); |
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| 340 | |
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| 341 | g_object_unref (widget->priv->gconf_client); |
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| 342 | |
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| 343 | G_OBJECT_CLASS (gdm_recent_option_widget_parent_class)->finalize (object); |
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| 344 | } |
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| 345 | |
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| 346 | GtkWidget * |
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| 347 | gdm_recent_option_widget_new (const char *label_text, |
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| 348 | int max_item_count) |
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| 349 | { |
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| 350 | GObject *object; |
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| 351 | |
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| 352 | object = g_object_new (GDM_TYPE_RECENT_OPTION_WIDGET, |
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| 353 | "label-text", label_text, |
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| 354 | "max-item-count", max_item_count, |
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| 355 | NULL); |
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| 356 | |
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| 357 | return GTK_WIDGET (object); |
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| 358 | } |
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| 359 | |
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| 360 | void |
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| 361 | gdm_recent_option_widget_add_item (GdmRecentOptionWidget *widget, |
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| 362 | const char *id) |
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| 363 | { |
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| 364 | GSList *list; |
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| 365 | |
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| 366 | list = gdm_recent_option_widget_get_list_from_gconf (widget); |
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| 367 | |
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| 368 | list = g_slist_prepend (list, g_strdup (id)); |
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| 369 | |
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| 370 | gconf_client_set_list (widget->priv->gconf_client, |
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| 371 | widget->priv->gconf_key, |
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| 372 | GCONF_VALUE_STRING, list, NULL); |
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| 373 | |
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| 374 | g_slist_foreach (list, (GFunc) g_free, NULL); |
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| 375 | g_slist_free (list); |
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| 376 | |
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| 377 | gdm_recent_option_widget_sync_items_from_gconf (widget); |
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| 378 | } |
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