Adding upstream version 3.38.2.1.upstream/3.38.2.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 331 insertions, 0 deletions

diff --git a/daemon/gdm-display-store.c b/daemon/gdm-display-store.c
new file mode 100644
index 0000000..7df69d9
--- /dev/null
+++ b/daemon/gdm-display-store.c
@@ -0,0 +1,331 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2007 William Jon McCann <mccann@jhu.edu>
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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 "gdm-display-store.h"
+#include "gdm-display.h"
+
+struct GdmDisplayStorePrivate
+{
+        GHashTable *displays;
+};
+
+typedef struct
+{
+        GdmDisplayStore *store;
+        GdmDisplay      *display;
+} StoredDisplay;
+
+enum {
+        DISPLAY_ADDED,
+        DISPLAY_REMOVED,
+        LAST_SIGNAL
+};
+
+static guint signals [LAST_SIGNAL] = { 0, };
+
+static void     gdm_display_store_class_init    (GdmDisplayStoreClass *klass);
+static void     gdm_display_store_init          (GdmDisplayStore      *display_store);
+static void     gdm_display_store_finalize      (GObject              *object);
+
+G_DEFINE_TYPE_WITH_PRIVATE (GdmDisplayStore, gdm_display_store, G_TYPE_OBJECT)
+
+static StoredDisplay *
+stored_display_new (GdmDisplayStore *store,
+                    GdmDisplay      *display)
+{
+        StoredDisplay *stored_display;
+
+        stored_display = g_slice_new (StoredDisplay);
+        stored_display->store = store;
+        stored_display->display = g_object_ref (display);
+
+        return stored_display;
+}
+
+static void
+stored_display_free (StoredDisplay *stored_display)
+{
+        g_signal_emit (G_OBJECT (stored_display->store),
+                       signals[DISPLAY_REMOVED],
+                       0,
+                       stored_display->display);
+
+        g_debug ("GdmDisplayStore: Unreffing display: %p",
+                 stored_display->display);
+        g_object_unref (stored_display->display);
+
+        g_slice_free (StoredDisplay, stored_display);
+}
+
+GQuark
+gdm_display_store_error_quark (void)
+{
+        static GQuark ret = 0;
+        if (ret == 0) {
+                ret = g_quark_from_static_string ("gdm_display_store_error");
+        }
+
+        return ret;
+}
+
+void
+gdm_display_store_clear (GdmDisplayStore    *store)
+{
+        g_return_if_fail (store != NULL);
+        g_debug ("GdmDisplayStore: Clearing display store");
+        g_hash_table_remove_all (store->priv->displays);
+}
+
+static gboolean
+remove_display (char              *id,
+                GdmDisplay        *display,
+                GdmDisplay        *display_to_remove)
+{
+        if (display == display_to_remove) {
+                return TRUE;
+        }
+        return FALSE;
+}
+
+gboolean
+gdm_display_store_remove (GdmDisplayStore    *store,
+                          GdmDisplay         *display)
+{
+        g_return_val_if_fail (store != NULL, FALSE);
+
+        gdm_display_store_foreach_remove (store,
+                                          (GdmDisplayStoreFunc)remove_display,
+                                          display);
+        return FALSE;
+}
+
+typedef struct
+{
+        GdmDisplayStoreFunc predicate;
+        gpointer            user_data;
+} FindClosure;
+
+static gboolean
+find_func (const char    *id,
+           StoredDisplay *stored_display,
+           FindClosure   *closure)
+{
+        return closure->predicate (id,
+                                   stored_display->display,
+                                   closure->user_data);
+}
+
+static void
+foreach_func (const char    *id,
+              StoredDisplay *stored_display,
+              FindClosure   *closure)
+{
+        (void) closure->predicate (id,
+                                   stored_display->display,
+                                   closure->user_data);
+}
+
+void
+gdm_display_store_foreach (GdmDisplayStore    *store,
+                           GdmDisplayStoreFunc func,
+                           gpointer            user_data)
+{
+        FindClosure  closure;
+
+        g_return_if_fail (store != NULL);
+        g_return_if_fail (func != NULL);
+
+        closure.predicate = func;
+        closure.user_data = user_data;
+
+        g_hash_table_foreach (store->priv->displays,
+                              (GHFunc) foreach_func,
+                              &closure);
+}
+
+GdmDisplay *
+gdm_display_store_lookup (GdmDisplayStore *store,
+                          const char      *id)
+{
+        StoredDisplay *stored_display;
+
+        g_return_val_if_fail (store != NULL, NULL);
+        g_return_val_if_fail (id != NULL, NULL);
+
+        stored_display = g_hash_table_lookup (store->priv->displays,
+                                              id);
+        if (stored_display == NULL) {
+                return NULL;
+        }
+
+        return stored_display->display;
+}
+
+GdmDisplay *
+gdm_display_store_find (GdmDisplayStore    *store,
+                        GdmDisplayStoreFunc predicate,
+                        gpointer            user_data)
+{
+        StoredDisplay *stored_display;
+        FindClosure    closure;
+
+        g_return_val_if_fail (store != NULL, NULL);
+        g_return_val_if_fail (predicate != NULL, NULL);
+
+        closure.predicate = predicate;
+        closure.user_data = user_data;
+
+        stored_display = g_hash_table_find (store->priv->displays,
+                                            (GHRFunc) find_func,
+                                            &closure);
+
+        if (stored_display == NULL) {
+                return NULL;
+        }
+
+        return stored_display->display;
+}
+
+guint
+gdm_display_store_foreach_remove (GdmDisplayStore    *store,
+                                  GdmDisplayStoreFunc func,
+                                  gpointer            user_data)
+{
+        FindClosure closure;
+        guint       ret;
+
+        g_return_val_if_fail (store != NULL, 0);
+        g_return_val_if_fail (func != NULL, 0);
+
+        closure.predicate = func;
+        closure.user_data = user_data;
+
+        ret = g_hash_table_foreach_remove (store->priv->displays,
+                                           (GHRFunc) find_func,
+                                           &closure);
+        return ret;
+}
+
+void
+gdm_display_store_add (GdmDisplayStore *store,
+                       GdmDisplay      *display)
+{
+        char          *id;
+        StoredDisplay *stored_display;
+
+        g_return_if_fail (store != NULL);
+        g_return_if_fail (display != NULL);
+
+        gdm_display_get_id (display, &id, NULL);
+
+        g_debug ("GdmDisplayStore: Adding display %s to store", id);
+
+        stored_display = stored_display_new (store, display);
+        g_hash_table_insert (store->priv->displays,
+                             id,
+                             stored_display);
+
+        g_signal_emit (G_OBJECT (store),
+                       signals[DISPLAY_ADDED],
+                       0,
+                       id);
+}
+
+static void
+gdm_display_store_class_init (GdmDisplayStoreClass *klass)
+{
+        GObjectClass   *object_class = G_OBJECT_CLASS (klass);
+
+        object_class->finalize = gdm_display_store_finalize;
+
+        signals [DISPLAY_ADDED] =
+                g_signal_new ("display-added",
+                              G_TYPE_FROM_CLASS (object_class),
+                              G_SIGNAL_RUN_LAST,
+                              G_STRUCT_OFFSET (GdmDisplayStoreClass, display_added),
+                              NULL,
+                              NULL,
+                              g_cclosure_marshal_VOID__STRING,
+                              G_TYPE_NONE,
+                              1, G_TYPE_STRING);
+        signals [DISPLAY_REMOVED] =
+                g_signal_new ("display-removed",
+                              G_TYPE_FROM_CLASS (object_class),
+                              G_SIGNAL_RUN_LAST,
+                              G_STRUCT_OFFSET (GdmDisplayStoreClass, display_removed),
+                              NULL,
+                              NULL,
+                              g_cclosure_marshal_VOID__OBJECT,
+                              G_TYPE_NONE,
+                              1, G_TYPE_OBJECT);
+}
+
+static void
+gdm_display_store_init (GdmDisplayStore *store)
+{
+
+        store->priv = gdm_display_store_get_instance_private (store);
+
+        store->priv->displays = g_hash_table_new_full (g_str_hash,
+                                                       g_str_equal,
+                                                       g_free,
+                                                       (GDestroyNotify)
+                                                       stored_display_free);
+}
+
+static void
+gdm_display_store_finalize (GObject *object)
+{
+        GdmDisplayStore *store;
+
+        g_return_if_fail (object != NULL);
+        g_return_if_fail (GDM_IS_DISPLAY_STORE (object));
+
+        store = GDM_DISPLAY_STORE (object);
+
+        g_return_if_fail (store->priv != NULL);
+
+        g_hash_table_destroy (store->priv->displays);
+
+        G_OBJECT_CLASS (gdm_display_store_parent_class)->finalize (object);
+}
+
+GdmDisplayStore *
+gdm_display_store_new (void)
+{
+        GObject *object;
+
+        object = g_object_new (GDM_TYPE_DISPLAY_STORE,
+                               NULL);
+
+        return GDM_DISPLAY_STORE (object);
+}