diff options
Diffstat (limited to 'cut-n-paste-code/libegg/eggsmclient.c')
| -rw-r--r-- | cut-n-paste-code/libegg/eggsmclient.c | 612 |
1 files changed, 0 insertions, 612 deletions
diff --git a/cut-n-paste-code/libegg/eggsmclient.c b/cut-n-paste-code/libegg/eggsmclient.c deleted file mode 100644 index 4886f147..00000000 --- a/cut-n-paste-code/libegg/eggsmclient.c +++ /dev/null @@ -1,612 +0,0 @@ -/* - * Copyright (C) 2007 Novell, Inc. - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library 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 - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, - * Boston, MA 02110-1301, USA. - */ - -#include "config.h" - -#include <string.h> -#include <glib/gi18n.h> - -#include "eggsmclient.h" -#include "eggsmclient-private.h" - -static void egg_sm_client_debug_handler (const char *log_domain, - GLogLevelFlags log_level, - const char *message, - gpointer user_data); - -enum -{ - SAVE_STATE, - QUIT_REQUESTED, - QUIT_CANCELLED, - QUIT, - LAST_SIGNAL -}; - -static guint signals[LAST_SIGNAL] = { 0 }; - -struct _EggSMClientPrivate -{ - GKeyFile *state_file; -}; - -#define EGG_SM_CLIENT_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), EGG_TYPE_SM_CLIENT, EggSMClientPrivate)) - -G_DEFINE_TYPE (EggSMClient, egg_sm_client, G_TYPE_OBJECT) - -static EggSMClient *global_client; -static EggSMClientMode global_client_mode = EGG_SM_CLIENT_MODE_NORMAL; - -static gboolean -running_in_mate (void) -{ - return (g_strcmp0 (g_getenv ("XDG_CURRENT_DESKTOP"), "MATE") == 0) - || (g_strcmp0 (g_getenv ("XDG_SESSION_DESKTOP"), "MATE") == 0) - || (g_strcmp0 (g_getenv ("DESKTOP_SESSION"), "MATE") == 0); -} - -static void -egg_sm_client_init (EggSMClient *client) -{ - ; -} - -static void -egg_sm_client_class_init (EggSMClientClass *klass) -{ - GObjectClass *object_class = G_OBJECT_CLASS (klass); - - g_type_class_add_private (klass, sizeof (EggSMClientPrivate)); - - /** - * EggSMClient::save_state: - * @client: the client - * @state_file: a #GKeyFile to save state information into - * - * Emitted when the session manager has requested that the - * application save information about its current state. The - * application should save its state into @state_file, and then the - * session manager may then restart the application in a future - * session and tell it to initialize itself from that state. - * - * You should not save any data into @state_file's "start group" - * (ie, the %NULL group). Instead, applications should save their - * data into groups with names that start with the application name, - * and libraries that connect to this signal should save their data - * into groups with names that start with the library name. - * - * Alternatively, rather than (or in addition to) using @state_file, - * the application can save its state by calling - * egg_sm_client_set_restart_command() during the processing of this - * signal (eg, to include a list of files to open). - **/ - signals[SAVE_STATE] = - g_signal_new ("save_state", - G_OBJECT_CLASS_TYPE (object_class), - G_SIGNAL_RUN_LAST, - G_STRUCT_OFFSET (EggSMClientClass, save_state), - NULL, NULL, - g_cclosure_marshal_VOID__POINTER, - G_TYPE_NONE, - 1, G_TYPE_POINTER); - - /** - * EggSMClient::quit_requested: - * @client: the client - * - * Emitted when the session manager requests that the application - * exit (generally because the user is logging out). The application - * should decide whether or not it is willing to quit (perhaps after - * asking the user what to do with documents that have unsaved - * changes) and then call egg_sm_client_will_quit(), passing %TRUE - * or %FALSE to give its answer to the session manager. (It does not - * need to give an answer before returning from the signal handler; - * it can interact with the user asynchronously and then give its - * answer later on.) If the application does not connect to this - * signal, then #EggSMClient will automatically return %TRUE on its - * behalf. - * - * The application should not save its session state as part of - * handling this signal; if the user has requested that the session - * be saved when logging out, then ::save_state will be emitted - * separately. - * - * If the application agrees to quit, it should then wait for either - * the ::quit_cancelled or ::quit signals to be emitted. - **/ - signals[QUIT_REQUESTED] = - g_signal_new ("quit_requested", - G_OBJECT_CLASS_TYPE (object_class), - G_SIGNAL_RUN_LAST, - G_STRUCT_OFFSET (EggSMClientClass, quit_requested), - NULL, NULL, - g_cclosure_marshal_VOID__VOID, - G_TYPE_NONE, - 0); - - /** - * EggSMClient::quit_cancelled: - * @client: the client - * - * Emitted when the session manager decides to cancel a logout after - * the application has already agreed to quit. After receiving this - * signal, the application can go back to what it was doing before - * receiving the ::quit_requested signal. - **/ - signals[QUIT_CANCELLED] = - g_signal_new ("quit_cancelled", - G_OBJECT_CLASS_TYPE (object_class), - G_SIGNAL_RUN_LAST, - G_STRUCT_OFFSET (EggSMClientClass, quit_cancelled), - NULL, NULL, - g_cclosure_marshal_VOID__VOID, - G_TYPE_NONE, - 0); - - /** - * EggSMClient::quit: - * @client: the client - * - * Emitted when the session manager wants the application to quit - * (generally because the user is logging out). The application - * should exit as soon as possible after receiving this signal; if - * it does not, the session manager may choose to forcibly kill it. - * - * Normally a GUI application would only be sent a ::quit if it - * agreed to quit in response to a ::quit_requested signal. However, - * this is not guaranteed; in some situations the session manager - * may decide to end the session without giving applications a - * chance to object. - **/ - signals[QUIT] = - g_signal_new ("quit", - G_OBJECT_CLASS_TYPE (object_class), - G_SIGNAL_RUN_LAST, - G_STRUCT_OFFSET (EggSMClientClass, quit), - NULL, NULL, - g_cclosure_marshal_VOID__VOID, - G_TYPE_NONE, - 0); -} - -static gboolean sm_client_disable = FALSE; -static char *sm_client_state_file = NULL; -static char *sm_client_id = NULL; -static char *sm_config_prefix = NULL; - -static gboolean -sm_client_post_parse_func (GOptionContext *context, - GOptionGroup *group, - gpointer data, - GError **error) -{ - EggSMClient *client = egg_sm_client_get (); - - if (sm_client_id == NULL) - { - const gchar *desktop_autostart_id; - - desktop_autostart_id = g_getenv ("DESKTOP_AUTOSTART_ID"); - - if (desktop_autostart_id != NULL) - sm_client_id = g_strdup (desktop_autostart_id); - } - - /* Unset DESKTOP_AUTOSTART_ID in order to avoid child processes to - * use the same client id. */ - g_unsetenv ("DESKTOP_AUTOSTART_ID"); - - if (EGG_SM_CLIENT_GET_CLASS (client)->startup) - EGG_SM_CLIENT_GET_CLASS (client)->startup (client, sm_client_id); - return TRUE; -} - -/** - * egg_sm_client_get_option_group: - * - * Creates a %GOptionGroup containing the session-management-related - * options. You should add this group to the application's - * %GOptionContext if you want to use #EggSMClient. - * - * Return value: the %GOptionGroup - **/ -GOptionGroup * -egg_sm_client_get_option_group (void) -{ - const GOptionEntry entries[] = - { - { - "sm-client-disable", 0, 0, - G_OPTION_ARG_NONE, &sm_client_disable, - N_("Disable connection to session manager"), NULL - }, - { - "sm-client-state-file", 0, 0, - G_OPTION_ARG_FILENAME, &sm_client_state_file, - N_("Specify file containing saved configuration"), N_("FILE") - }, - { - "sm-client-id", 0, 0, - G_OPTION_ARG_STRING, &sm_client_id, - N_("Specify session management ID"), N_("ID") - }, - /* MateClient compatibility option */ - { - "sm-disable", 0, G_OPTION_FLAG_HIDDEN, - G_OPTION_ARG_NONE, &sm_client_disable, - NULL, NULL - }, - /* MateClient compatibility option. This is a dummy option that only - * exists so that sessions saved by apps with MateClient can be restored - * later when they've switched to EggSMClient. See bug #575308. - */ - { - "sm-config-prefix", 0, G_OPTION_FLAG_HIDDEN, - G_OPTION_ARG_STRING, &sm_config_prefix, - NULL, NULL - }, - { NULL } - }; - GOptionGroup *group; - - /* Use our own debug handler for the "EggSMClient" domain. */ - g_log_set_handler (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, - egg_sm_client_debug_handler, NULL); - - group = g_option_group_new ("sm-client", - _("Session management options:"), - _("Show session management options"), - NULL, NULL); - g_option_group_add_entries (group, entries); - g_option_group_set_parse_hooks (group, NULL, sm_client_post_parse_func); - - return group; -} - -/** - * egg_sm_client_set_mode: - * @mode: an #EggSMClient mode - * - * Sets the "mode" of #EggSMClient as follows: - * - * %EGG_SM_CLIENT_MODE_DISABLED: Session management is completely - * disabled. The application will not even connect to the session - * manager. (egg_sm_client_get() will still return an #EggSMClient, - * but it will just be a dummy object.) - * - * %EGG_SM_CLIENT_MODE_NO_RESTART: The application will connect to - * the session manager (and thus will receive notification when the - * user is logging out, etc), but will request to not be - * automatically restarted with saved state in future sessions. - * - * %EGG_SM_CLIENT_MODE_NORMAL: The default. #EggSMCLient will - * function normally. - * - * This must be called before the application's main loop begins. - **/ -void -egg_sm_client_set_mode (EggSMClientMode mode) -{ - global_client_mode = mode; -} - -/** - * egg_sm_client_get_mode: - * - * Gets the global #EggSMClientMode. See egg_sm_client_set_mode() - * for details. - * - * Return value: the global #EggSMClientMode - **/ -EggSMClientMode -egg_sm_client_get_mode (void) -{ - return global_client_mode; -} - -/** - * egg_sm_client_get: - * - * Returns the master #EggSMClient for the application. - * - * On platforms that support saved sessions (ie, POSIX/X11), the - * application will only request to be restarted by the session - * manager if you call egg_set_desktop_file() to set an application - * desktop file. In particular, if the desktop file contains the key - * "X - * - * Return value: the master #EggSMClient. - **/ -EggSMClient * -egg_sm_client_get (void) -{ - if (!global_client) - { - if (global_client_mode != EGG_SM_CLIENT_MODE_DISABLED && - !sm_client_disable) - { - /* If both D-Bus and XSMP are compiled in, try XSMP first - * (since it supports state saving) and fall back to D-Bus - * if XSMP isn't available. - */ -#ifdef EGG_SM_CLIENT_BACKEND_XSMP - global_client = egg_sm_client_xsmp_new (); -#endif -#ifdef EGG_SM_CLIENT_BACKEND_DBUS - if (!global_client) - global_client = egg_sm_client_dbus_new (); -#endif - } - - /* Fallback: create a dummy client, so that callers don't have - * to worry about a %NULL return value. - */ - if (!global_client) - global_client = g_object_new (EGG_TYPE_SM_CLIENT, NULL); - /*FIXME - Disabling when root/not in MATE in GtkApplication builds - as egg_sm_client_set_mode must be called prior to start of main loop - to stop caja restart but this is diffcult in GtkApplication */ - - if (geteuid () == 0 || !running_in_mate ()){ - global_client = g_object_new (EGG_TYPE_SM_CLIENT, NULL); - } - } - - return global_client; -} - -/** - * egg_sm_client_is_resumed: - * @client: the client - * - * Checks whether or not the current session has been resumed from - * a previous saved session. If so, the application should call - * egg_sm_client_get_state_file() and restore its state from the - * returned #GKeyFile. - * - * Return value: %TRUE if the session has been resumed - **/ -gboolean -egg_sm_client_is_resumed (EggSMClient *client) -{ - g_return_val_if_fail (client == global_client, FALSE); - - return sm_client_state_file != NULL; -} - -/** - * egg_sm_client_get_state_file: - * @client: the client - * - * If the application was resumed by the session manager, this will - * return the #GKeyFile containing its state from the previous - * session. - * - * Note that other libraries and #EggSMClient itself may also store - * state in the key file, so if you call egg_sm_client_get_groups(), - * on it, the return value will likely include groups that you did not - * put there yourself. (It is also not guaranteed that the first - * group created by the application will still be the "start group" - * when it is resumed.) - * - * Return value: the #GKeyFile containing the application's earlier - * state, or %NULL on error. You should not free this key file; it - * is owned by @client. - **/ -GKeyFile * -egg_sm_client_get_state_file (EggSMClient *client) -{ - EggSMClientPrivate *priv = EGG_SM_CLIENT_GET_PRIVATE (client); - char *state_file_path; - GError *err = NULL; - - g_return_val_if_fail (client == global_client, NULL); - - if (!sm_client_state_file) - return NULL; - if (priv->state_file) - return priv->state_file; - - if (!strncmp (sm_client_state_file, "file://", 7)) - state_file_path = g_filename_from_uri (sm_client_state_file, NULL, NULL); - else - state_file_path = g_strdup (sm_client_state_file); - - priv->state_file = g_key_file_new (); - if (!g_key_file_load_from_file (priv->state_file, state_file_path, 0, &err)) - { - g_warning ("Could not load SM state file '%s': %s", - sm_client_state_file, err->message); - g_clear_error (&err); - g_key_file_free (priv->state_file); - priv->state_file = NULL; - } - - g_free (state_file_path); - return priv->state_file; -} - -/** - * egg_sm_client_set_restart_command: - * @client: the client - * @argc: the length of @argv - * @argv: argument vector - * - * Sets the command used to restart @client if it does not have a - * .desktop file that can be used to find its restart command. - * - * This can also be used when handling the ::save_state signal, to - * save the current state via an updated command line. (Eg, providing - * a list of filenames to open when the application is resumed.) - **/ -void -egg_sm_client_set_restart_command (EggSMClient *client, - int argc, - const char **argv) -{ - g_return_if_fail (EGG_IS_SM_CLIENT (client)); - - if (EGG_SM_CLIENT_GET_CLASS (client)->set_restart_command) - EGG_SM_CLIENT_GET_CLASS (client)->set_restart_command (client, argc, argv); -} - -/** - * egg_sm_client_will_quit: - * @client: the client - * @will_quit: whether or not the application is willing to quit - * - * This MUST be called in response to the ::quit_requested signal, to - * indicate whether or not the application is willing to quit. The - * application may call it either directly from the signal handler, or - * at some later point (eg, after asynchronously interacting with the - * user). - * - * If the application does not connect to ::quit_requested, - * #EggSMClient will call this method on its behalf (passing %TRUE - * for @will_quit). - * - * After calling this method, the application should wait to receive - * either ::quit_cancelled or ::quit. - **/ -void -egg_sm_client_will_quit (EggSMClient *client, - gboolean will_quit) -{ - g_return_if_fail (EGG_IS_SM_CLIENT (client)); - - if (EGG_SM_CLIENT_GET_CLASS (client)->will_quit) - EGG_SM_CLIENT_GET_CLASS (client)->will_quit (client, will_quit); -} - -/** - * egg_sm_client_end_session: - * @style: a hint at how to end the session - * @request_confirmation: whether or not the user should get a chance - * to confirm the action - * - * Requests that the session manager end the current session. @style - * indicates how the session should be ended, and - * @request_confirmation indicates whether or not the user should be - * given a chance to confirm the logout/reboot/shutdown. Both of these - * flags are merely hints though; the session manager may choose to - * ignore them. - * - * Return value: %TRUE if the request was sent; %FALSE if it could not - * be (eg, because it could not connect to the session manager). - **/ -gboolean -egg_sm_client_end_session (EggSMClientEndStyle style, - gboolean request_confirmation) -{ - EggSMClient *client = egg_sm_client_get (); - - g_return_val_if_fail (EGG_IS_SM_CLIENT (client), FALSE); - - if (EGG_SM_CLIENT_GET_CLASS (client)->end_session) - { - return EGG_SM_CLIENT_GET_CLASS (client)->end_session (client, style, - request_confirmation); - } - else - return FALSE; -} - -/* Signal-emitting callbacks from platform-specific code */ - -GKeyFile * -egg_sm_client_save_state (EggSMClient *client) -{ - GKeyFile *state_file; - char *group; - - g_return_val_if_fail (client == global_client, NULL); - - state_file = g_key_file_new (); - - g_debug ("Emitting save_state"); - g_signal_emit (client, signals[SAVE_STATE], 0, state_file); - g_debug ("Done emitting save_state"); - - group = g_key_file_get_start_group (state_file); - if (group) - { - g_free (group); - return state_file; - } - else - { - g_key_file_free (state_file); - return NULL; - } -} - -void -egg_sm_client_quit_requested (EggSMClient *client) -{ - g_return_if_fail (client == global_client); - - if (!g_signal_has_handler_pending (client, signals[QUIT_REQUESTED], 0, FALSE)) - { - g_debug ("Not emitting quit_requested because no one is listening"); - egg_sm_client_will_quit (client, TRUE); - return; - } - - g_debug ("Emitting quit_requested"); - g_signal_emit (client, signals[QUIT_REQUESTED], 0); - g_debug ("Done emitting quit_requested"); -} - -void -egg_sm_client_quit_cancelled (EggSMClient *client) -{ - g_return_if_fail (client == global_client); - - g_debug ("Emitting quit_cancelled"); - g_signal_emit (client, signals[QUIT_CANCELLED], 0); - g_debug ("Done emitting quit_cancelled"); -} - -void -egg_sm_client_quit (EggSMClient *client) -{ - g_return_if_fail (client == global_client); - - g_debug ("Emitting quit"); - g_signal_emit (client, signals[QUIT], 0); - g_debug ("Done emitting quit"); - - /* FIXME: should we just call gtk_main_quit() here? */ -} - -static void -egg_sm_client_debug_handler (const char *log_domain, - GLogLevelFlags log_level, - const char *message, - gpointer user_data) -{ - static int debug = -1; - - if (debug < 0) - debug = (g_getenv ("EGG_SM_CLIENT_DEBUG") != NULL); - - if (debug) - g_log_default_handler (log_domain, log_level, message, NULL); -} |