moving from https://github.com/perberos/mate-desktop-environment

1 files changed, 413 insertions, 0 deletions

diff --git a/mate-session/gsm-store.c b/mate-session/gsm-store.c
new file mode 100644
index 0000000..e250d8d
--- /dev/null
+++ b/mate-session/gsm-store.c
@@ -0,0 +1,413 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2007-2008 William Jon McCann <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <string.h>
+
+#include <glib.h>
+#include <glib/gi18n.h>
+#include <glib-object.h>
+
+#include "gsm-store.h"
+
+#define GSM_STORE_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GSM_TYPE_STORE, GsmStorePrivate))
+
+struct GsmStorePrivate
+{
+        GHashTable *objects;
+        gboolean    locked;
+};
+
+enum {
+        ADDED,
+        REMOVED,
+        LAST_SIGNAL
+};
+
+enum {
+        PROP_0,
+        PROP_LOCKED
+};
+
+static guint signals [LAST_SIGNAL] = { 0 };
+
+static void     gsm_store_class_init    (GsmStoreClass *klass);
+static void     gsm_store_init          (GsmStore      *store);
+static void     gsm_store_finalize      (GObject       *object);
+
+G_DEFINE_TYPE (GsmStore, gsm_store, G_TYPE_OBJECT)
+
+GQuark
+gsm_store_error_quark (void)
+{
+        static GQuark ret = 0;
+        if (ret == 0) {
+                ret = g_quark_from_static_string ("gsm_store_error");
+        }
+
+        return ret;
+}
+
+guint
+gsm_store_size (GsmStore    *store)
+{
+        return g_hash_table_size (store->priv->objects);
+}
+
+gboolean
+gsm_store_remove (GsmStore   *store,
+                  const char *id)
+{
+        GObject *found;
+        gboolean removed;
+        char    *id_copy;
+
+        g_return_val_if_fail (store != NULL, FALSE);
+
+        found = g_hash_table_lookup (store->priv->objects, id);
+        if (found == NULL) {
+                return FALSE;
+        }
+
+        id_copy = g_strdup (id);
+
+        g_object_ref (found);
+
+        removed = g_hash_table_remove (store->priv->objects, id_copy);
+        g_assert (removed);
+
+        g_signal_emit (store, signals [REMOVED], 0, id_copy);
+
+        g_object_unref (found);
+        g_free (id_copy);
+
+        return TRUE;
+}
+
+void
+gsm_store_foreach (GsmStore    *store,
+                   GsmStoreFunc func,
+                   gpointer     user_data)
+{
+        g_return_if_fail (store != NULL);
+        g_return_if_fail (func != NULL);
+
+        g_hash_table_find (store->priv->objects,
+                           (GHRFunc)func,
+                           user_data);
+}
+
+GObject *
+gsm_store_find (GsmStore    *store,
+                GsmStoreFunc predicate,
+                gpointer     user_data)
+{
+        GObject *object;
+
+        g_return_val_if_fail (store != NULL, NULL);
+        g_return_val_if_fail (predicate != NULL, NULL);
+
+        object = g_hash_table_find (store->priv->objects,
+                                    (GHRFunc)predicate,
+                                    user_data);
+        return object;
+}
+
+GObject *
+gsm_store_lookup (GsmStore   *store,
+                  const char *id)
+{
+        GObject *object;
+
+        g_return_val_if_fail (store != NULL, NULL);
+        g_return_val_if_fail (id != NULL, NULL);
+
+        object = g_hash_table_lookup (store->priv->objects, id);
+
+        return object;
+}
+
+
+typedef struct
+{
+        GsmStoreFunc func;
+        gpointer     user_data;
+        GsmStore    *store;
+        GList       *removed;
+} WrapperData;
+
+static gboolean
+foreach_remove_wrapper (const char  *id,
+                        GObject     *object,
+                        WrapperData *data)
+{
+        gboolean res;
+
+        res = (data->func) (id, object, data->user_data);
+        if (res) {
+                data->removed = g_list_prepend (data->removed, g_strdup (id));
+        }
+
+        return res;
+}
+
+guint
+gsm_store_foreach_remove (GsmStore    *store,
+                          GsmStoreFunc func,
+                          gpointer     user_data)
+{
+        guint       ret;
+        WrapperData data;
+
+        g_return_val_if_fail (store != NULL, 0);
+        g_return_val_if_fail (func != NULL, 0);
+
+        data.store = store;
+        data.user_data = user_data;
+        data.func = func;
+        data.removed = NULL;
+
+        ret = g_hash_table_foreach_remove (store->priv->objects,
+                                           (GHRFunc)foreach_remove_wrapper,
+                                           &data);
+
+        while (data.removed != NULL) {
+                char *id;
+                id = data.removed->data;
+                g_debug ("GsmStore: emitting removed for %s", id);
+                g_signal_emit (store, signals [REMOVED], 0, id);
+                g_free (data.removed->data);
+                data.removed->data = NULL;
+                data.removed = g_list_delete_link (data.removed, data.removed);
+        }
+
+        return ret;
+}
+
+static gboolean
+_remove_all (const char *id,
+             GObject    *object,
+             gpointer    data)
+{
+        return TRUE;
+}
+
+void
+gsm_store_clear (GsmStore *store)
+{
+        g_return_if_fail (store != NULL);
+
+        g_debug ("GsmStore: Clearing object store");
+
+        gsm_store_foreach_remove (store,
+                                  _remove_all,
+                                  NULL);
+}
+
+gboolean
+gsm_store_add (GsmStore   *store,
+               const char *id,
+               GObject    *object)
+{
+        g_return_val_if_fail (store != NULL, FALSE);
+        g_return_val_if_fail (id != NULL, FALSE);
+        g_return_val_if_fail (object != NULL, FALSE);
+
+        /* If we're locked, we don't accept any new session
+           objects. */
+        if (store->priv->locked) {
+                return FALSE;
+        }
+
+        g_debug ("GsmStore: Adding object id %s to store", id);
+
+        g_hash_table_insert (store->priv->objects,
+                             g_strdup (id),
+                             g_object_ref (object));
+
+        g_signal_emit (store, signals [ADDED], 0, id);
+
+        return TRUE;
+}
+
+void
+gsm_store_set_locked (GsmStore *store,
+                      gboolean  locked)
+{
+        g_return_if_fail (GSM_IS_STORE (store));
+
+        store->priv->locked = locked;
+}
+
+gboolean
+gsm_store_get_locked (GsmStore *store)
+{
+        g_return_val_if_fail (GSM_IS_STORE (store), FALSE);
+
+        return store->priv->locked;
+}
+
+static void
+gsm_store_set_property (GObject      *object,
+                        guint         prop_id,
+                        const GValue *value,
+                        GParamSpec   *pspec)
+{
+        GsmStore *self;
+
+        self = GSM_STORE (object);
+
+        switch (prop_id) {
+        case PROP_LOCKED:
+                gsm_store_set_locked (self, g_value_get_boolean (value));
+                break;
+        default:
+                G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+                break;
+        }
+}
+
+static void
+gsm_store_get_property (GObject    *object,
+                        guint       prop_id,
+                        GValue     *value,
+                        GParamSpec *pspec)
+{
+        GsmStore *self;
+
+        self = GSM_STORE (object);
+
+        switch (prop_id) {
+        case PROP_LOCKED:
+                g_value_set_boolean (value, self->priv->locked);
+                break;
+        default:
+                G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+                break;
+        }
+}
+
+static void
+gsm_store_dispose (GObject *object)
+{
+        GsmStore *store;
+
+        g_return_if_fail (object != NULL);
+        g_return_if_fail (GSM_IS_STORE (object));
+
+        store = GSM_STORE (object);
+
+        gsm_store_clear (store);
+
+        G_OBJECT_CLASS (gsm_store_parent_class)->dispose (object);
+}
+
+static void
+gsm_store_class_init (GsmStoreClass *klass)
+{
+        GObjectClass   *object_class = G_OBJECT_CLASS (klass);
+
+        object_class->get_property = gsm_store_get_property;
+        object_class->set_property = gsm_store_set_property;
+        object_class->finalize = gsm_store_finalize;
+        object_class->dispose = gsm_store_dispose;
+
+        signals [ADDED] =
+                g_signal_new ("added",
+                              G_TYPE_FROM_CLASS (object_class),
+                              G_SIGNAL_RUN_LAST,
+                              G_STRUCT_OFFSET (GsmStoreClass, added),
+                              NULL,
+                              NULL,
+                              g_cclosure_marshal_VOID__STRING,
+                              G_TYPE_NONE,
+                              1, G_TYPE_STRING);
+        signals [REMOVED] =
+                g_signal_new ("removed",
+                              G_TYPE_FROM_CLASS (object_class),
+                              G_SIGNAL_RUN_LAST,
+                              G_STRUCT_OFFSET (GsmStoreClass, removed),
+                              NULL,
+                              NULL,
+                              g_cclosure_marshal_VOID__STRING,
+                              G_TYPE_NONE,
+                              1, G_TYPE_STRING);
+        g_object_class_install_property (object_class,
+                                         PROP_LOCKED,
+                                         g_param_spec_boolean ("locked",
+                                                               NULL,
+                                                               NULL,
+                                                               FALSE,
+                                                               G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
+
+        g_type_class_add_private (klass, sizeof (GsmStorePrivate));
+}
+
+static void
+_destroy_object (GObject *object)
+{
+        g_debug ("GsmStore: Unreffing object: %p", object);
+        g_object_unref (object);
+}
+
+static void
+gsm_store_init (GsmStore *store)
+{
+
+        store->priv = GSM_STORE_GET_PRIVATE (store);
+
+        store->priv->objects = g_hash_table_new_full (g_str_hash,
+                                                      g_str_equal,
+                                                      g_free,
+                                                      (GDestroyNotify) _destroy_object);
+}
+
+static void
+gsm_store_finalize (GObject *object)
+{
+        GsmStore *store;
+
+        g_return_if_fail (object != NULL);
+        g_return_if_fail (GSM_IS_STORE (object));
+
+        store = GSM_STORE (object);
+
+        g_return_if_fail (store->priv != NULL);
+
+        g_hash_table_destroy (store->priv->objects);
+
+        G_OBJECT_CLASS (gsm_store_parent_class)->finalize (object);
+}
+
+GsmStore *
+gsm_store_new (void)
+{
+        GObject *object;
+
+        object = g_object_new (GSM_TYPE_STORE,
+                               NULL);
+
+        return GSM_STORE (object);
+}