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GSettings: import delayed backend to master
This commit is contained in:
Ryan Lortie
parent
04c1eadfff
commit
d4a4a4ccdb
@ -81,6 +81,8 @@ gio-marshal.c: gio-marshal.h gio-marshal.list
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settings_sources = \
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gsettingsbackendinternal.h \
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gdelayedsettingsbackend.h \
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gdelayedsettingsbackend. \
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gnullsettingsbackend.h \
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gnullsettingsbackend.c \
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gsettingsbackend.c \
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317
gio/gdelayedsettingsbackend.c
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317
gio/gdelayedsettingsbackend.c
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@ -0,0 +1,317 @@
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/*
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* Copyright © 2009, 2010 Codethink Limited
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the licence, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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* Author: Ryan Lortie <desrt@desrt.ca>
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*/
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#include "config.h"
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#include "gdelayedsettingsbackend.h"
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#include "gsettingsbackendinternal.h"
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#include <string.h>
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#include "gioalias.h"
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struct _GDelayedSettingsBackendPrivate
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{
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GSettingsBackend *backend;
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GTree *delayed;
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gpointer owner;
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};
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G_DEFINE_TYPE (GDelayedSettingsBackend,
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g_delayed_settings_backend,
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G_TYPE_SETTINGS_BACKEND)
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static GVariant *
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g_delayed_settings_backend_read (GSettingsBackend *backend,
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const gchar *key,
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const GVariantType *expected_type)
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{
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GDelayedSettingsBackend *delayed = G_DELAYED_SETTINGS_BACKEND (backend);
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GVariant *result;
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if ((result = g_tree_lookup (delayed->priv->delayed, key)))
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return g_variant_ref (result);
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return g_settings_backend_read (delayed->priv->backend,
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key, expected_type);
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}
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static gboolean
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g_delayed_settings_backend_write (GSettingsBackend *backend,
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const gchar *key,
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GVariant *value,
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gpointer origin_tag)
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{
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GDelayedSettingsBackend *delayed = G_DELAYED_SETTINGS_BACKEND (backend);
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gboolean was_empty;
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was_empty = g_tree_nnodes (delayed->priv->delayed) == 0;
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g_tree_insert (delayed->priv->delayed, g_strdup (key),
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g_variant_ref_sink (value));
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g_settings_backend_changed (backend, key, origin_tag);
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if (was_empty && delayed->priv->owner)
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g_object_notify (delayed->priv->owner, "has-unapplied");
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return TRUE;
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}
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static gboolean
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add_to_tree (gpointer key,
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gpointer value,
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gpointer user_data)
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{
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g_tree_insert (user_data, g_strdup (key), g_variant_ref (value));
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return FALSE;
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}
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static gboolean
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g_delayed_settings_backend_write_keys (GSettingsBackend *backend,
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GTree *tree,
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gpointer origin_tag)
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{
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GDelayedSettingsBackend *delayed = G_DELAYED_SETTINGS_BACKEND (backend);
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gboolean was_empty;
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was_empty = g_tree_nnodes (delayed->priv->delayed) == 0;
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g_tree_foreach (tree, add_to_tree, delayed->priv->delayed);
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g_settings_backend_changed_tree (backend, tree, origin_tag);
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if (was_empty && delayed->priv->owner)
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g_object_notify (delayed->priv->owner, "has-unapplied");
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return TRUE;
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}
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static gboolean
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g_delayed_settings_backend_get_writable (GSettingsBackend *backend,
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const gchar *name)
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{
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GDelayedSettingsBackend *delayed = G_DELAYED_SETTINGS_BACKEND (backend);
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return g_settings_backend_get_writable (delayed->priv->backend, name);
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}
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static void
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g_delayed_settings_backend_reset (GSettingsBackend *backend,
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const gchar *key,
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gpointer origin_tag)
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{
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/* deal with this... */
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}
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static void
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g_delayed_settings_backend_reset_path (GSettingsBackend *backend,
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const gchar *path,
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gpointer origin_tag)
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{
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/* deal with this... */
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}
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static void
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g_delayed_settings_backend_subscribe (GSettingsBackend *backend,
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const char *name)
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{
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GDelayedSettingsBackend *delayed = G_DELAYED_SETTINGS_BACKEND (backend);
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g_settings_backend_subscribe (delayed->priv->backend, name);
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}
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static void
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g_delayed_settings_backend_unsubscribe (GSettingsBackend *backend,
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const char *name)
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{
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GDelayedSettingsBackend *delayed = G_DELAYED_SETTINGS_BACKEND (backend);
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g_settings_backend_unsubscribe (delayed->priv->backend, name);
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}
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/* method calls */
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gboolean
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g_delayed_settings_backend_get_has_unapplied (GDelayedSettingsBackend *delayed)
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{
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return g_tree_nnodes (delayed->priv->delayed) > 0;
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}
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void
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g_delayed_settings_backend_apply (GDelayedSettingsBackend *delayed)
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{
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if (g_tree_nnodes (delayed->priv->delayed) > 0)
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{
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GTree *tmp;
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tmp = delayed->priv->delayed;
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delayed->priv->delayed = g_settings_backend_create_tree ();
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g_settings_backend_write_keys (delayed->priv->backend,
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tmp, delayed->priv);
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g_tree_unref (tmp);
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if (delayed->priv->owner)
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g_object_notify (delayed->priv->owner, "has-unapplied");
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}
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}
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void
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g_delayed_settings_backend_revert (GDelayedSettingsBackend *delayed)
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{
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if (g_tree_nnodes (delayed->priv->delayed) > 0)
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{
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GTree *tmp;
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tmp = delayed->priv->delayed;
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delayed->priv->delayed = g_settings_backend_create_tree ();
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g_settings_backend_changed_tree (G_SETTINGS_BACKEND (delayed), tmp, NULL);
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g_tree_unref (tmp);
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if (delayed->priv->owner)
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g_object_notify (delayed->priv->owner, "has-unapplied");
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}
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}
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/* change notification */
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static void
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delayed_backend_changed (GSettingsBackend *backend,
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const gchar *key,
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gpointer origin_tag,
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gpointer user_data)
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{
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GDelayedSettingsBackend *delayed = G_DELAYED_SETTINGS_BACKEND (user_data);
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if (origin_tag != delayed->priv)
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g_settings_backend_changed (G_SETTINGS_BACKEND (delayed),
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key, origin_tag);
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}
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static void
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delayed_backend_keys_changed (GSettingsBackend *backend,
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const gchar *path,
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const gchar * const *items,
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gpointer origin_tag,
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gpointer user_data)
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{
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GDelayedSettingsBackend *delayed = G_DELAYED_SETTINGS_BACKEND (user_data);
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if (origin_tag != delayed->priv)
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g_settings_backend_keys_changed (G_SETTINGS_BACKEND (delayed),
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path, items, origin_tag);
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}
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static void
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delayed_backend_path_changed (GSettingsBackend *backend,
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const gchar *path,
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gpointer origin_tag,
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gpointer user_data)
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{
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GDelayedSettingsBackend *delayed = G_DELAYED_SETTINGS_BACKEND (user_data);
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if (origin_tag != delayed->priv)
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g_settings_backend_path_changed (G_SETTINGS_BACKEND (delayed),
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path, origin_tag);
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}
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static void
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delayed_backend_writable_changed (GSettingsBackend *backend,
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const gchar *key,
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gpointer user_data)
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{
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GDelayedSettingsBackend *delayed = G_DELAYED_SETTINGS_BACKEND (user_data);
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/* XXX: maybe drop keys from the delayed-apply settings
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* if they became non-writable?
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*/
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g_settings_backend_writable_changed (G_SETTINGS_BACKEND (delayed), key);
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}
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static void
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delayed_backend_path_writable_changed (GSettingsBackend *backend,
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const gchar *path,
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gpointer user_data)
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{
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GDelayedSettingsBackend *delayed = G_DELAYED_SETTINGS_BACKEND (user_data);
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/* XXX: maybe drop keys from the delayed-apply settings
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* if they became non-writable?
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*/
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g_settings_backend_path_writable_changed (G_SETTINGS_BACKEND (delayed),
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path);
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}
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static void
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g_delayed_settings_backend_finalize (GObject *object)
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{
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GDelayedSettingsBackend *delayed = G_DELAYED_SETTINGS_BACKEND (object);
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g_settings_backend_unwatch (delayed->priv->backend, delayed);
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g_object_unref (delayed->priv->backend);
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}
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static void
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g_delayed_settings_backend_class_init (GDelayedSettingsBackendClass *class)
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{
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GSettingsBackendClass *backend_class = G_SETTINGS_BACKEND_CLASS (class);
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GObjectClass *object_class = G_OBJECT_CLASS (class);
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g_type_class_add_private (class, sizeof (GDelayedSettingsBackendPrivate));
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backend_class->read = g_delayed_settings_backend_read;
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backend_class->write = g_delayed_settings_backend_write;
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backend_class->write_keys = g_delayed_settings_backend_write_keys;
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backend_class->reset = g_delayed_settings_backend_reset;
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backend_class->reset_path = g_delayed_settings_backend_reset_path;
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backend_class->get_writable = g_delayed_settings_backend_get_writable;
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backend_class->subscribe = g_delayed_settings_backend_subscribe;
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backend_class->unsubscribe = g_delayed_settings_backend_unsubscribe;
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object_class->finalize = g_delayed_settings_backend_finalize;
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}
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static void
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g_delayed_settings_backend_init (GDelayedSettingsBackend *delayed)
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{
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delayed->priv =
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G_TYPE_INSTANCE_GET_PRIVATE (delayed, G_TYPE_DELAYED_SETTINGS_BACKEND,
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GDelayedSettingsBackendPrivate);
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delayed->priv->delayed = g_settings_backend_create_tree ();
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}
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GDelayedSettingsBackend *
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g_delayed_settings_backend_new (GSettingsBackend *backend,
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gpointer owner)
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{
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GDelayedSettingsBackend *delayed;
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delayed = g_object_new (G_TYPE_DELAYED_SETTINGS_BACKEND, NULL);
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delayed->priv->backend = g_object_ref (backend);
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delayed->priv->owner = owner;
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g_settings_backend_watch (delayed->priv->backend,
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delayed_backend_changed,
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delayed_backend_path_changed,
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delayed_backend_keys_changed,
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delayed_backend_writable_changed,
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delayed_backend_path_writable_changed,
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delayed);
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return delayed;
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}
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73
gio/gdelayedsettingsbackend.h
Normal file
73
gio/gdelayedsettingsbackend.h
Normal file
@ -0,0 +1,73 @@
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/*
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* Copyright © 2009, 2010 Codethink Limited
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the licence, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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* Author: Ryan Lortie <desrt@desrt.ca>
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*/
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#ifndef __G_DELAYED_SETTINGS_BACKEND_H__
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#define __G_DELAYED_SETTINGS_BACKEND_H__
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#include <glib-object.h>
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#include <gio/gsettingsbackend.h>
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#define G_TYPE_DELAYED_SETTINGS_BACKEND (g_delayed_settings_backend_get_type ())
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#define G_DELAYED_SETTINGS_BACKEND(inst) (G_TYPE_CHECK_INSTANCE_CAST ((inst), \
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G_TYPE_DELAYED_SETTINGS_BACKEND, \
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GDelayedSettingsBackend))
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#define G_DELAYED_SETTINGS_BACKEND_CLASS(class) (G_TYPE_CHECK_CLASS_CAST ((class), \
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G_TYPE_DELAYED_SETTINGS_BACKEND, \
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GDelayedSettingsBackendClass))
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#define G_IS_DELAYED_SETTINGS_BACKEND(inst) (G_TYPE_CHECK_INSTANCE_TYPE ((inst), \
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G_TYPE_DELAYED_SETTINGS_BACKEND))
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#define G_IS_DELAYED_SETTINGS_BACKEND_CLASS(class) (G_TYPE_CHECK_CLASS_TYPE ((class), \
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G_TYPE_DELAYED_SETTINGS_BACKEND))
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#define G_DELAYED_SETTINGS_BACKEND_GET_CLASS(inst) (G_TYPE_INSTANCE_GET_CLASS ((inst), \
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G_TYPE_DELAYED_SETTINGS_BACKEND, \
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GDelayedSettingsBackendClass))
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typedef struct _GDelayedSettingsBackendPrivate GDelayedSettingsBackendPrivate;
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typedef struct _GDelayedSettingsBackendClass GDelayedSettingsBackendClass;
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typedef struct _GDelayedSettingsBackend GDelayedSettingsBackend;
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struct _GDelayedSettingsBackendClass
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{
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GSettingsBackendClass parent_class;
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};
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struct _GDelayedSettingsBackend
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{
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GSettingsBackend parent_instance;
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GDelayedSettingsBackendPrivate *priv;
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};
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G_GNUC_INTERNAL
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GType g_delayed_settings_backend_get_type (void);
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G_GNUC_INTERNAL
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GDelayedSettingsBackend * g_delayed_settings_backend_new (GSettingsBackend *backend,
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gpointer owner);
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G_GNUC_INTERNAL
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void g_delayed_settings_backend_disown (GDelayedSettingsBackend *backend);
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G_GNUC_INTERNAL
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void g_delayed_settings_backend_revert (GDelayedSettingsBackend *delayed);
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G_GNUC_INTERNAL
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void g_delayed_settings_backend_apply (GDelayedSettingsBackend *delayed);
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G_GNUC_INTERNAL
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gboolean g_delayed_settings_backend_get_has_unapplied (GDelayedSettingsBackend *delayed);
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#endif /* __G_DELAYED_SETTINGS_BACKEND_H__ */
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