From d524c8e88f558b9f2aebff39b6fbe77eab51e081 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 19:43:08 +0200 Subject: Adding upstream version 43.0. Signed-off-by: Daniel Baumann --- daemon/gdm-display-store.c | 331 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 331 insertions(+) create mode 100644 daemon/gdm-display-store.c (limited to 'daemon/gdm-display-store.c') 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 + * + * 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 +#include +#include +#include +#include + +#include +#include +#include + +#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); +} -- cgit v1.2.3