core: Add MetaSessionState
This is an abstract base class to implement a "client session", carrying the accounting of the windows, and allowing to serialize/read their state into a Gvdb table. Since different windowing backends may require slightly different data to be saved for each window, this is meant to have windowing-specific implementations. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3825>
This commit is contained in:
Carlos Garnacho
Marge Bot
parent
777c89f10d
commit
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3 changed files with 254 additions and 0 deletions
177
src/core/meta-session-state.c
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177
src/core/meta-session-state.c
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/*
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* Copyright (C) 2024 Red Hat Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* 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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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*
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* Author: Carlos Garnacho <carlosg@gnome.org>
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*/
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#include "config.h"
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#include "core/meta-session-state.h"
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#include "meta/util.h"
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enum
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{
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PROP_0,
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PROP_NAME,
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N_PROPS,
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};
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static GParamSpec *props[N_PROPS] = { 0, };
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typedef struct _MetaSessionStatePrivate MetaSessionStatePrivate;
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struct _MetaSessionStatePrivate
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{
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char *name;
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};
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G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE (MetaSessionState, meta_session_state, G_TYPE_OBJECT)
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const char *
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meta_session_state_get_name (MetaSessionState *state)
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{
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MetaSessionStatePrivate *priv =
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meta_session_state_get_instance_private (state);
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return priv->name;
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}
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gboolean
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meta_session_state_serialize (MetaSessionState *state,
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GHashTable *gvdb_data)
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{
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meta_topic (META_DEBUG_SESSION_MANAGEMENT, "Serializing state");
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return META_SESSION_STATE_GET_CLASS (state)->serialize (state, gvdb_data);
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}
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gboolean
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meta_session_state_parse (MetaSessionState *state,
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GvdbTable *data,
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GError **error)
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{
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meta_topic (META_DEBUG_SESSION_MANAGEMENT, "Parsing state");
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return META_SESSION_STATE_GET_CLASS (state)->parse (state, data, error);
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}
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void
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meta_session_state_save_window (MetaSessionState *state,
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const char *name,
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MetaWindow *window)
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{
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meta_topic (META_DEBUG_SESSION_MANAGEMENT, "Saving window %s", name);
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META_SESSION_STATE_GET_CLASS (state)->save_window (state, name, window);
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}
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gboolean
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meta_session_state_restore_window (MetaSessionState *state,
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const char *name,
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MetaWindow *window)
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{
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meta_topic (META_DEBUG_SESSION_MANAGEMENT, "Restoring window %s", name);
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return META_SESSION_STATE_GET_CLASS (state)->restore_window (state,
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name,
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window);
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}
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void
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meta_session_state_remove_window (MetaSessionState *state,
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const char *name)
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{
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meta_topic (META_DEBUG_SESSION_MANAGEMENT, "Removing window %s", name);
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META_SESSION_STATE_GET_CLASS (state)->remove_window (state, name);
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}
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static void
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meta_session_state_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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MetaSessionState *session_state = META_SESSION_STATE (object);
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MetaSessionStatePrivate *priv =
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meta_session_state_get_instance_private (session_state);
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switch (prop_id)
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{
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case PROP_NAME:
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priv->name = g_value_dup_string (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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meta_session_state_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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MetaSessionState *session_state = META_SESSION_STATE (object);
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MetaSessionStatePrivate *priv =
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meta_session_state_get_instance_private (session_state);
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switch (prop_id)
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{
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case PROP_NAME:
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g_value_set_string (value, priv->name);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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meta_session_state_finalize (GObject *object)
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{
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MetaSessionState *session_state = META_SESSION_STATE (object);
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MetaSessionStatePrivate *priv =
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meta_session_state_get_instance_private (session_state);
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g_clear_pointer (&priv->name, g_free);
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G_OBJECT_CLASS (meta_session_state_parent_class)->finalize (object);
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}
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static void
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meta_session_state_class_init (MetaSessionStateClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->set_property = meta_session_state_set_property;
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object_class->get_property = meta_session_state_get_property;
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object_class->finalize = meta_session_state_finalize;
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props[PROP_NAME] =
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g_param_spec_string ("name", NULL, NULL,
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NULL,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
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G_PARAM_CONSTRUCT_ONLY);
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g_object_class_install_properties (object_class, N_PROPS, props);
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}
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static void
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meta_session_state_init (MetaSessionState *state)
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{
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}
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76
src/core/meta-session-state.h
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76
src/core/meta-session-state.h
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@ -0,0 +1,76 @@
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/*
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* Copyright (C) 2024 Red Hat Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* 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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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*
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* Author: Carlos Garnacho <carlosg@gnome.org>
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*/
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#pragma once
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#include <glib-object.h>
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#include <gvdb/gvdb-builder.h>
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#include <gvdb/gvdb-reader.h>
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#include "meta/window.h"
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#define META_TYPE_SESSION_STATE (meta_session_state_get_type ())
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G_DECLARE_DERIVABLE_TYPE (MetaSessionState,
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meta_session_state,
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META, SESSION_STATE,
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GObject)
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struct _MetaSessionStateClass
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{
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GObjectClass parent_class;
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gboolean (* serialize) (MetaSessionState *state,
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GHashTable *gvdb_data);
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gboolean (* parse) (MetaSessionState *state,
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GvdbTable *data,
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GError **error);
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void (* save_window) (MetaSessionState *state,
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const char *name,
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MetaWindow *window);
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gboolean (* restore_window) (MetaSessionState *state,
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const char *name,
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MetaWindow *window);
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void (* remove_window) (MetaSessionState *state,
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const char *name);
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};
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const char * meta_session_state_get_name (MetaSessionState *state);
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gboolean meta_session_state_serialize (MetaSessionState *state,
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GHashTable *gvdb_data);
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gboolean meta_session_state_parse (MetaSessionState *state,
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GvdbTable *data,
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GError **error);
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void meta_session_state_save_window (MetaSessionState *state,
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const char *name,
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MetaWindow *window);
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gboolean meta_session_state_restore_window (MetaSessionState *state,
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const char *name,
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MetaWindow *window);
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void meta_session_state_remove_window (MetaSessionState *state,
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const char *name);
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@ -372,6 +372,7 @@ mutter_sources = [
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'core/meta-selection.c',
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'core/meta-selection-source.c',
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'core/meta-selection-source-memory.c',
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'core/meta-session-state.c',
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'core/meta-sound-player.c',
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'core/meta-tablet-action-mapper.c',
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'core/meta-tool-action-mapper.c',
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