/* * e-shell.c * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) version 3. * * 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with the program; if not, see * * * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com) * */ #include "e-shell.h" #include #include #include "e-util/e-util-private.h" #include "e-util/e-util.h" #include "e-util/e-module.h" #include "smclient/eggsmclient.h" #include "widgets/misc/e-preferences-window.h" #include "e-shell-backend.h" #include "e-shell-window.h" #include "e-shell-utils.h" #define E_SHELL_GET_PRIVATE(obj) \ (G_TYPE_INSTANCE_GET_PRIVATE \ ((obj), E_TYPE_SHELL, EShellPrivate)) struct _EShellPrivate { GList *watched_windows; EShellSettings *settings; GConfClient *gconf_client; GtkWidget *preferences_window; /* Shell Backends */ GList *loaded_backends; GHashTable *backends_by_name; GHashTable *backends_by_scheme; gpointer preparing_for_line_change; /* weak pointer */ gpointer preparing_for_quit; /* weak pointer */ gchar *geometry; gchar *module_directory; guint auto_reconnect : 1; guint network_available : 1; guint online : 1; guint quit_cancelled : 1; guint safe_mode : 1; guint express_mode : 1; }; enum { PROP_0, PROP_EXPRESS_MODE, PROP_GEOMETRY, PROP_MODULE_DIRECTORY, PROP_NETWORK_AVAILABLE, PROP_ONLINE, PROP_SHELL_SETTINGS }; enum { EVENT, HANDLE_URI, PREPARE_FOR_OFFLINE, PREPARE_FOR_ONLINE, PREPARE_FOR_QUIT, QUIT_REQUESTED, SEND_RECEIVE, WINDOW_CREATED, WINDOW_DESTROYED, LAST_SIGNAL }; enum { DEBUG_KEY_SETTINGS = 1 << 0 }; static GDebugKey debug_keys[] = { { "settings", DEBUG_KEY_SETTINGS } }; static gpointer parent_class; static gpointer default_shell; static guint signals[LAST_SIGNAL]; #if defined(NM_SUPPORT) && NM_SUPPORT gboolean e_shell_dbus_initialize (EShell *shell); #endif static void shell_parse_debug_string (EShell *shell) { guint flags; flags = g_parse_debug_string ( g_getenv ("EVOLUTION_DEBUG"), debug_keys, G_N_ELEMENTS (debug_keys)); if (flags & DEBUG_KEY_SETTINGS) e_shell_settings_enable_debug (shell->priv->settings); } static void shell_notify_online_cb (EShell *shell) { gboolean online; online = e_shell_get_online (shell); e_passwords_set_online (online); } static gboolean shell_window_delete_event_cb (EShell *shell, GtkWindow *window) { /* If other windows are open we can safely close this one. */ if (g_list_length (shell->priv->watched_windows) > 1) return FALSE; /* Otherwise we initiate application quit. */ e_shell_quit (shell); return TRUE; } static gboolean shell_window_focus_in_event_cb (EShell *shell, GdkEventFocus *event, GtkWindow *window) { GList *list, *link; /* Keep the watched windows list sorted by most recently focused, * so the first item in the list should always be the currently * focused window. */ list = shell->priv->watched_windows; link = g_list_find (list, window); g_return_val_if_fail (link != NULL, FALSE); if (link != list) { list = g_list_remove_link (list, link); list = g_list_concat (link, list); } shell->priv->watched_windows = list; return FALSE; } static void shell_window_weak_notify_cb (EShell *shell, GObject *where_the_object_was) { GList *list; list = shell->priv->watched_windows; list = g_list_remove (list, where_the_object_was); shell->priv->watched_windows = list; g_signal_emit (shell, signals[WINDOW_DESTROYED], 0); } static void shell_ready_for_offline (EShell *shell, EActivity *activity, gboolean is_last_ref) { if (!is_last_ref) return; /* Increment the reference count so we can safely emit * a signal without triggering the toggle reference. */ g_object_ref (activity); e_activity_complete (activity); g_object_remove_toggle_ref ( G_OBJECT (activity), (GToggleNotify) shell_ready_for_offline, shell); /* Finalize the activity. */ g_object_unref (activity); shell->priv->online = FALSE; g_object_notify (G_OBJECT (shell), "online"); } static void shell_prepare_for_offline (EShell *shell) { /* Are preparations already in progress? */ if (shell->priv->preparing_for_line_change != NULL) return; shell->priv->preparing_for_line_change = e_activity_new (_("Preparing to go offline...")); g_object_add_toggle_ref ( G_OBJECT (shell->priv->preparing_for_line_change), (GToggleNotify) shell_ready_for_offline, shell); g_object_add_weak_pointer ( G_OBJECT (shell->priv->preparing_for_line_change), &shell->priv->preparing_for_line_change); g_signal_emit ( shell, signals[PREPARE_FOR_OFFLINE], 0, shell->priv->preparing_for_line_change); g_object_unref (shell->priv->preparing_for_line_change); } static void shell_ready_for_online (EShell *shell, EActivity *activity, gboolean is_last_ref) { if (!is_last_ref) return; /* Increment the reference count so we can safely emit * a signal without triggering the toggle reference. */ g_object_ref (activity); e_activity_complete (activity); g_object_remove_toggle_ref ( G_OBJECT (activity), (GToggleNotify) shell_ready_for_online, shell); /* Finalize the activity. */ g_object_unref (activity); shell->priv->online = TRUE; g_object_notify (G_OBJECT (shell), "online"); } static void shell_prepare_for_online (EShell *shell) { /* Are preparations already in progress? */ if (shell->priv->preparing_for_line_change != NULL) return; shell->priv->preparing_for_line_change = e_activity_new (_("Preparing to go online...")); g_object_add_toggle_ref ( G_OBJECT (shell->priv->preparing_for_line_change), (GToggleNotify) shell_ready_for_online, shell); g_object_add_weak_pointer ( G_OBJECT (shell->priv->preparing_for_line_change), &shell->priv->preparing_for_line_change); g_signal_emit ( shell, signals[PREPARE_FOR_ONLINE], 0, shell->priv->preparing_for_line_change); g_object_unref (shell->priv->preparing_for_line_change); } static void shell_ready_for_quit (EShell *shell, EActivity *activity, gboolean is_last_ref) { GList *list; if (!is_last_ref) return; /* Increment the reference count so we can safely emit * a signal without triggering the toggle reference. */ g_object_ref (activity); e_activity_complete (activity); g_object_remove_toggle_ref ( G_OBJECT (activity), (GToggleNotify) shell_ready_for_quit, shell); /* Finalize the activity. */ g_object_ref (activity); /* This handles a strange corner case where --quit is given on * the command-line but no other Evolution process is running. * We bring all the shell backends up and then immediately run * the shutdown procedure, which gets us here. But because no * windows have been shown yet, the usual "main loop ends when * the last window is destroyed" trick won't work. */ if (e_shell_get_watched_windows (shell) == NULL) gtk_main_quit (); /* Destroy all watched windows. Note, we iterate over a -copy- * of the watched windows list because the act of destroying a * watched window will modify the watched windows list, which * would derail the iteration. */ list = g_list_copy (e_shell_get_watched_windows (shell)); g_list_foreach (list, (GFunc) gtk_widget_destroy, NULL); g_list_free (list); } static void shell_prepare_for_quit (EShell *shell) { GList *list, *iter; /* Are preparations already in progress? */ if (shell->priv->preparing_for_quit != NULL) return; shell->priv->preparing_for_quit = e_activity_new (_("Preparing to quit...")); g_object_add_toggle_ref ( G_OBJECT (shell->priv->preparing_for_quit), (GToggleNotify) shell_ready_for_quit, shell); g_object_add_weak_pointer ( G_OBJECT (shell->priv->preparing_for_quit), &shell->priv->preparing_for_quit); g_signal_emit ( shell, signals[PREPARE_FOR_QUIT], 0, shell->priv->preparing_for_quit); g_object_unref (shell->priv->preparing_for_quit); /* Desensitize all watched windows to prevent user action. */ list = e_shell_get_watched_windows (shell); for (iter = list; iter != NULL; iter = iter->next) gtk_widget_set_sensitive (GTK_WIDGET (iter->data), FALSE); } static gboolean shell_request_quit (EShell *shell) { /* Are preparations already in progress? */ if (shell->priv->preparing_for_quit != NULL) return TRUE; /* Give the application a chance to cancel quit. */ shell->priv->quit_cancelled = FALSE; g_signal_emit (shell, signals[QUIT_REQUESTED], 0); return !shell->priv->quit_cancelled; } static void shell_load_modules (EShell *shell) { const gchar *module_directory; GList *modules = NULL; /* Load all shared library modules. */ module_directory = e_shell_get_module_directory (shell); g_return_if_fail (module_directory != NULL); modules = e_module_load_all_in_directory (module_directory); g_list_foreach (modules, (GFunc) g_type_module_unuse, NULL); g_list_free (modules); } /* Helper for shell_add_backend() */ static void shell_split_and_insert_items (GHashTable *hash_table, const gchar *items, EShellBackend *shell_backend) { gpointer key; gchar **strv; gint ii; strv = g_strsplit_set (items, ":", -1); for (ii = 0; strv[ii] != NULL; ii++) { key = (gpointer) g_intern_string (strv[ii]); g_hash_table_insert (hash_table, key, shell_backend); } g_strfreev (strv); } static void shell_add_backend (GType type, EShell *shell) { EShellBackendClass *class; EShellBackend *shell_backend; GHashTable *backends_by_name; GHashTable *backends_by_scheme; const gchar *string; shell_backend = g_object_new (type, "shell", shell, NULL); shell->priv->loaded_backends = g_list_insert_sorted ( shell->priv->loaded_backends, shell_backend, (GCompareFunc) e_shell_backend_compare); /* Bookkeeping */ class = E_SHELL_BACKEND_GET_CLASS (shell_backend); backends_by_name = shell->priv->backends_by_name; backends_by_scheme = shell->priv->backends_by_scheme; if ((string = class->name) != NULL) g_hash_table_insert ( backends_by_name, (gpointer) g_intern_string (string), shell_backend); if ((string = class->aliases) != NULL) shell_split_and_insert_items ( backends_by_name, string, shell_backend); if ((string = class->schemes) != NULL) shell_split_and_insert_items ( backends_by_scheme, string, shell_backend); } static void shell_sm_quit_requested_cb (EShell *shell, EggSMClient *sm_client) { gboolean will_quit; /* If preparations are already in progress then we have already * committed ourselves to quitting, and can answer 'yes'. */ if (shell->priv->preparing_for_quit == NULL) will_quit = shell_request_quit (shell); else will_quit = TRUE; egg_sm_client_will_quit (sm_client, will_quit); } static void shell_sm_quit_cancelled_cb (EShell *shell, EggSMClient *sm_client) { /* Nothing to do. This is just to aid debugging. */ } static void shell_sm_quit_cb (EShell *shell, EggSMClient *sm_client) { shell_prepare_for_quit (shell); } static void shell_set_express_mode (EShell *shell, gboolean express_mode) { shell->priv->express_mode = express_mode; } static void shell_set_geometry (EShell *shell, const gchar *geometry) { g_return_if_fail (shell->priv->geometry == NULL); shell->priv->geometry = g_strdup (geometry); } static void shell_set_module_directory (EShell *shell, const gchar *module_directory) { g_return_if_fail (shell->priv->module_directory == NULL); shell->priv->module_directory = g_strdup (module_directory); } static void shell_set_property (GObject *object, guint property_id, const GValue *value, GParamSpec *pspec) { switch (property_id) { case PROP_EXPRESS_MODE: shell_set_express_mode ( E_SHELL (object), g_value_get_boolean (value)); return; case PROP_GEOMETRY: shell_set_geometry ( E_SHELL (object), g_value_get_string (value)); return; case PROP_MODULE_DIRECTORY: shell_set_module_directory ( E_SHELL (object), g_value_get_string (value)); return; case PROP_NETWORK_AVAILABLE: e_shell_set_network_available ( E_SHELL (object), g_value_get_boolean (value)); return; case PROP_ONLINE: e_shell_set_online ( E_SHELL (object), g_value_get_boolean (value)); return; } G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); } static void shell_get_property (GObject *object, guint property_id, GValue *value, GParamSpec *pspec) { switch (property_id) { case PROP_EXPRESS_MODE: g_value_set_boolean ( value, e_shell_get_express_mode ( E_SHELL (object))); return; case PROP_MODULE_DIRECTORY: g_value_set_string ( value, e_shell_get_module_directory ( E_SHELL (object))); return; case PROP_NETWORK_AVAILABLE: g_value_set_boolean ( value, e_shell_get_network_available ( E_SHELL (object))); return; case PROP_ONLINE: g_value_set_boolean ( value, e_shell_get_online ( E_SHELL (object))); return; case PROP_SHELL_SETTINGS: g_value_set_object ( value, e_shell_get_shell_settings ( E_SHELL (object))); return; } G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); } static void shell_dispose (GObject *object) { EShellPrivate *priv; priv = E_SHELL_GET_PRIVATE (object); if (priv->settings != NULL) { g_object_unref (priv->settings); priv->settings = NULL; } if (priv->gconf_client != NULL) { g_object_unref (priv->gconf_client); priv->gconf_client = NULL; } if (priv->preferences_window != NULL) { g_object_unref (priv->preferences_window); priv->preferences_window = NULL; } g_list_foreach (priv->loaded_backends, (GFunc) g_object_unref, NULL); g_list_free (priv->loaded_backends); priv->loaded_backends = NULL; if (priv->preparing_for_line_change != NULL) { g_object_remove_weak_pointer ( G_OBJECT (priv->preparing_for_line_change), &priv->preparing_for_line_change); } /* Chain up to parent's dispose() method. */ G_OBJECT_CLASS (parent_class)->dispose (object); } static void shell_finalize (GObject *object) { EShellPrivate *priv; priv = E_SHELL_GET_PRIVATE (object); g_hash_table_destroy (priv->backends_by_name); g_hash_table_destroy (priv->backends_by_scheme); /* Indicates a clean shut down to the next session. */ if (!unique_app_is_running (UNIQUE_APP (object))) e_file_lock_destroy (); g_free (priv->geometry); g_free (priv->module_directory); /* Chain up to parent's finalize() method. */ G_OBJECT_CLASS (parent_class)->finalize (object); } static void shell_constructed (GObject *object) { EShellPrivate *priv; priv = E_SHELL_GET_PRIVATE (object); /* The first EShell instance is the default. */ if (default_shell == NULL) { default_shell = object; g_object_add_weak_pointer (object, &default_shell); } /* UniqueApp will have by this point determined whether we're * the only Evolution process running. If so, proceed normally. * Otherwise we just issue commands to the other process. */ if (unique_app_is_running (UNIQUE_APP (object))) return; e_file_lock_create (); shell_load_modules (E_SHELL (object)); e_type_traverse ( E_TYPE_SHELL_BACKEND, (ETypeFunc) shell_add_backend, object); } static UniqueResponse shell_message_handle_new (EShell *shell, UniqueMessageData *data) { gchar *view_name; view_name = unique_message_data_get_text (data); e_shell_create_shell_window (shell, view_name); g_free (view_name); return UNIQUE_RESPONSE_OK; } static UniqueResponse shell_message_handle_open (EShell *shell, UniqueMessageData *data) { gchar **uris; uris = unique_message_data_get_uris (data); if (uris && uris[0] && g_str_equal (uris[0], "--import")) { gint ii; GPtrArray *arr = g_ptr_array_new (); /* skip the first argument */ for (ii = 1; uris[ii] != NULL; ii++) { g_ptr_array_add (arr, uris[ii]); } g_ptr_array_add (arr, NULL); e_shell_handle_uris (shell, (gchar **)arr->pdata, TRUE); g_ptr_array_free (arr, TRUE); } else { e_shell_handle_uris (shell, uris, FALSE); } g_strfreev (uris); return UNIQUE_RESPONSE_OK; } static UniqueResponse shell_message_handle_close (EShell *shell, UniqueMessageData *data) { UniqueResponse response; if (e_shell_quit (shell)) response = UNIQUE_RESPONSE_OK; else response = UNIQUE_RESPONSE_CANCEL; return response; } static UniqueResponse shell_message_received (UniqueApp *app, gint command, UniqueMessageData *data, guint time_) { EShell *shell = E_SHELL (app); switch (command) { case UNIQUE_ACTIVATE: break; /* use the default behavior */ case UNIQUE_NEW: return shell_message_handle_new (shell, data); case UNIQUE_OPEN: return shell_message_handle_open (shell, data); case UNIQUE_CLOSE: return shell_message_handle_close (shell, data); default: break; } /* Chain up to parent's message_received() method. */ return UNIQUE_APP_CLASS (parent_class)-> message_received (app, command, data, time_); } static void shell_window_destroyed (EShell *shell) { if (e_shell_get_watched_windows (shell) == NULL) gtk_main_quit (); } static void shell_class_init (EShellClass *class) { GObjectClass *object_class; UniqueAppClass *unique_app_class; parent_class = g_type_class_peek_parent (class); g_type_class_add_private (class, sizeof (EShellPrivate)); object_class = G_OBJECT_CLASS (class); object_class->set_property = shell_set_property; object_class->get_property = shell_get_property; object_class->dispose = shell_dispose; object_class->finalize = shell_finalize; object_class->constructed = shell_constructed; unique_app_class = UNIQUE_APP_CLASS (class); unique_app_class->message_received = shell_message_received; class->window_destroyed = shell_window_destroyed; /** * EShell:express-mode * * Express mode alters Evolution's user interface to be more * usable on devices with small screens. **/ g_object_class_install_property ( object_class, PROP_EXPRESS_MODE, g_param_spec_boolean ( "express-mode", "Express Mode", "Whether express mode is enabled", FALSE, G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY)); /** * EShell:geometry * * User-specified initial window geometry string to apply * to the first #EShellWindow created. **/ g_object_class_install_property ( object_class, PROP_GEOMETRY, g_param_spec_string ( "geometry", _("Geometry"), _("Initial window geometry string"), NULL, G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY)); /** * EShell:module-directory * * The directory from which to load #EModules. **/ g_object_class_install_property ( object_class, PROP_MODULE_DIRECTORY, g_param_spec_string ( "module-directory", _("Module Directory"), _("The directory from which to load EModules"), NULL, G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY)); /** * EShell:network-available * * Whether the network is available. **/ g_object_class_install_property ( object_class, PROP_NETWORK_AVAILABLE, g_param_spec_boolean ( "network-available", _("Network Available"), _("Whether the network is available"), TRUE, G_PARAM_READWRITE | G_PARAM_CONSTRUCT)); /** * EShell:online * * Whether the shell is online. **/ g_object_class_install_property ( object_class, PROP_ONLINE, g_param_spec_boolean ( "online", _("Online"), _("Whether the shell is online"), FALSE, G_PARAM_READWRITE | G_PARAM_CONSTRUCT)); /** * EShell:settings * * The #EShellSettings object stores application settings. **/ g_object_class_install_property ( object_class, PROP_SHELL_SETTINGS, g_param_spec_object ( "shell-settings", _("Shell Settings"), _("Application-wide settings"), E_TYPE_SHELL_SETTINGS, G_PARAM_READABLE)); /** * EShell::event * @shell: the #EShell which emitted the signal * @event_data: data associated with the event * * This signal is used to broadcast custom events to the entire * application. The nature of @event_data depends on the event * being broadcast. The signal's detail denotes the event. **/ signals[EVENT] = g_signal_new ( "event", G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_FIRST | G_SIGNAL_DETAILED | G_SIGNAL_ACTION, 0, NULL, NULL, g_cclosure_marshal_VOID__POINTER, G_TYPE_NONE, 1, G_TYPE_POINTER); /** * EShell::handle-uri * @shell: the #EShell which emitted the signal * @uri: the URI to be handled * * Emitted when @shell receives a URI to be handled, usually by * way of a command-line argument. An #EShellBackend should listen * for this signal and try to handle the URI, usually by opening an * editor window for the identified resource. * * Returns: %TRUE if the URI could be handled, %FALSE otherwise **/ signals[HANDLE_URI] = g_signal_new ( "handle-uri", G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (EShellClass, handle_uri), g_signal_accumulator_true_handled, NULL, e_marshal_BOOLEAN__STRING, G_TYPE_BOOLEAN, 1, G_TYPE_STRING); /** * EShell::prepare-for-offline * @shell: the #EShell which emitted the signal * @activity: the #EActivity for offline preparations * * Emitted when the user elects to work offline. An #EShellBackend * should listen for this signal and make preparations for working * in offline mode. * * If preparations for working offline cannot immediately be * completed (such as when synchronizing with a remote server), * the #EShellBackend should reference the @activity until * preparations are complete, and then unreference the @activity. * This will delay Evolution from actually going to offline mode * until all backends have unreferenced @activity. **/ signals[PREPARE_FOR_OFFLINE] = g_signal_new ( "prepare-for-offline", G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (EShellClass, prepare_for_offline), NULL, NULL, g_cclosure_marshal_VOID__OBJECT, G_TYPE_NONE, 1, E_TYPE_ACTIVITY); /** * EShell::prepare-for-online * @shell: the #EShell which emitted the signal * @activity: the #EActivity for offline preparations * * Emitted when the user elects to work online. An #EShellBackend * should listen for this signal and make preparations for working * in online mode. * * If preparations for working online cannot immediately be * completed (such as when re-connecting to a remote server), the * #EShellBackend should reference the @activity until preparations * are complete, and then unreference the @activity. This will * delay Evolution from actually going to online mode until all * backends have unreferenced @activity. **/ signals[PREPARE_FOR_ONLINE] = g_signal_new ( "prepare-for-online", G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (EShellClass, prepare_for_online), NULL, NULL, g_cclosure_marshal_VOID__OBJECT, G_TYPE_NONE, 1, E_TYPE_ACTIVITY); /** * EShell::prepare-for-quit * @shell: the #EShell which emitted the signal * @activity: the #EActivity for quit preparations * * Emitted when the user elects to quit the application, after * #EShell::quit-requested. An #EShellBackend should listen for * this signal and make preparations for shutting down. * * If preparations for shutting down cannot immediately be completed * (such as when there are uncompleted network operations), the * #EShellBackend should reference the @activity until preparations * are complete, and then unreference the @activity. This will * delay Evolution from actually shutting down until all backends * have unreferenced @activity. **/ signals[PREPARE_FOR_QUIT] = g_signal_new ( "prepare-for-quit", G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (EShellClass, prepare_for_quit), NULL, NULL, g_cclosure_marshal_VOID__OBJECT, G_TYPE_NONE, 1, E_TYPE_ACTIVITY); /** * EShell::quit-requested * @shell: the #EShell which emitted the signal * * Emitted when the user elects to quit the application, before * #EShell::prepare-for-quit. * * #EShellBackends and editor windows can listen for * this signal to prompt the user to save changes or finish * scheduled operations immediately (such as sending mail in * Outbox). If the user elects to cancel, the signal handler * should call e_shell_cancel_quit() to abort the quit. **/ signals[QUIT_REQUESTED] = g_signal_new ( "quit-requested", G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (EShellClass, quit_requested), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); /** * EShell::send-receive * @shell: the #EShell which emitted the signal * @parent: a parent #GtkWindow * * Emitted when the user chooses the "Send / Receive" action. * The parent window can be used for showing transient windows. **/ signals[SEND_RECEIVE] = g_signal_new ( "send-receive", G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (EShellClass, send_receive), NULL, NULL, g_cclosure_marshal_VOID__OBJECT, G_TYPE_NONE, 1, GTK_TYPE_WINDOW); /** * EShell::window-created * @shell: the #EShell which emitted the signal * @window: the newly created #GtkWindow * * Emitted when @shell begins watching a newly created window. **/ signals[WINDOW_CREATED] = g_signal_new ( "window-created", G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (EShellClass, window_created), NULL, NULL, g_cclosure_marshal_VOID__OBJECT, G_TYPE_NONE, 1, GTK_TYPE_WINDOW); /** * EShell::window-destroyed * @shell: the #EShell which emitted the signal * * Emitted when a watched is destroyed. **/ signals[WINDOW_DESTROYED] = g_signal_new ( "window-destroyed", G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (EShellClass, window_destroyed), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); } static void shell_init (EShell *shell) { GHashTable *backends_by_name; GHashTable *backends_by_scheme; GtkIconTheme *icon_theme; EggSMClient *sm_client; shell->priv = E_SHELL_GET_PRIVATE (shell); backends_by_name = g_hash_table_new (g_str_hash, g_str_equal); backends_by_scheme = g_hash_table_new (g_str_hash, g_str_equal); shell->priv->settings = g_object_new (E_TYPE_SHELL_SETTINGS, NULL); shell->priv->gconf_client = gconf_client_get_default (); shell->priv->preferences_window = e_preferences_window_new (); shell->priv->backends_by_name = backends_by_name; shell->priv->backends_by_scheme = backends_by_scheme; shell->priv->safe_mode = e_file_lock_exists (); g_object_ref_sink (shell->priv->preferences_window); #if defined(NM_SUPPORT) && NM_SUPPORT e_shell_dbus_initialize (shell); #endif /* Add our icon directory to the theme's search path * here instead of in main() so Anjal picks it up. */ icon_theme = gtk_icon_theme_get_default (); gtk_icon_theme_append_search_path (icon_theme, EVOLUTION_ICONDIR); shell_parse_debug_string (shell); g_signal_connect ( shell, "notify::online", G_CALLBACK (shell_notify_online_cb), NULL); /* XXX Do this after creating the EShellSettings instance, * otherwise the GConf bindings will not get set up. */ e_shell_settings_install_property_for_key ( "file-chooser-folder", "/apps/evolution/shell/file_chooser_folder"); e_shell_settings_install_property_for_key ( "start-offline", "/apps/evolution/shell/start_offline"); #ifndef G_OS_WIN32 e_shell_settings_install_property_for_key ( "disable-application-handlers", "/desktop/gnome/lockdown/disable_application_handlers"); e_shell_settings_install_property_for_key ( "disable-command-line", "/desktop/gnome/lockdown/disable_command_line"); e_shell_settings_install_property_for_key ( "disable-printing", "/desktop/gnome/lockdown/disable_printing"); e_shell_settings_install_property_for_key ( "disable-print-setup", "/desktop/gnome/lockdown/disable_print_setup"); e_shell_settings_install_property_for_key ( "disable-save-to-disk", "/desktop/gnome/lockdown/disable_save_to_disk"); #endif /* G_OS_WIN32 */ /*** Session Management ***/ sm_client = egg_sm_client_get (); /* Not participating in session saving yet. */ egg_sm_client_set_mode (EGG_SM_CLIENT_MODE_NO_RESTART); g_signal_connect_swapped ( sm_client, "quit-requested", G_CALLBACK (shell_sm_quit_requested_cb), shell); g_signal_connect_swapped ( sm_client, "quit-cancelled", G_CALLBACK (shell_sm_quit_cancelled_cb), shell); g_signal_connect_swapped ( sm_client, "quit", G_CALLBACK (shell_sm_quit_cb), shell); } GType e_shell_get_type (void) { static GType type = 0; if (G_UNLIKELY (type == 0)) { const GTypeInfo type_info = { sizeof (EShellClass), (GBaseInitFunc) NULL, (GBaseFinalizeFunc) NULL, (GClassInitFunc) shell_class_init, (GClassFinalizeFunc) NULL, NULL, /* class_data */ sizeof (EShell), 0, /* n_preallocs */ (GInstanceInitFunc) shell_init, NULL /* value_table */ }; type = g_type_register_static ( UNIQUE_TYPE_APP, "EShell", &type_info, 0); } return type; } /** * e_shell_get_default: * * Returns the #EShell created by main(). * * Try to obtain the #EShell from elsewhere if you can. This function * is intended as a temporary workaround for when that proves difficult. * * Returns: the #EShell singleton **/ EShell * e_shell_get_default (void) { return default_shell; } /** * e_shell_get_shell_backends: * @shell: an #EShell * * Returns a list of loaded #EShellBackend instances. The list is * owned by @shell and should not be modified or freed. * * Returns: a list of loaded #EShellBackend instances **/ GList * e_shell_get_shell_backends (EShell *shell) { g_return_val_if_fail (E_IS_SHELL (shell), NULL); return shell->priv->loaded_backends; } /** * e_shell_get_canonical_name: * @shell: an #EShell * @name: the name or alias of an #EShellBackend * * Returns the canonical name for the #EShellBackend whose name or alias * is @name. * * Returns: the canonical #EShellBackend name **/ const gchar * e_shell_get_canonical_name (EShell *shell, const gchar *name) { EShellBackend *shell_backend; g_return_val_if_fail (E_IS_SHELL (shell), NULL); /* Handle NULL name arguments silently. */ if (name == NULL) return NULL; shell_backend = e_shell_get_backend_by_name (shell, name); if (shell_backend == NULL) return NULL; return E_SHELL_BACKEND_GET_CLASS (shell_backend)->name; } /** * e_shell_get_backend_by_name: * @shell: an #EShell * @name: the name or alias of an #EShellBackend * * Returns the corresponding #EShellBackend for the given name or alias, * or %NULL if @name is not recognized. * * Returns: the #EShellBackend named @name, or %NULL **/ EShellBackend * e_shell_get_backend_by_name (EShell *shell, const gchar *name) { GHashTable *hash_table; g_return_val_if_fail (E_IS_SHELL (shell), NULL); g_return_val_if_fail (name != NULL, NULL); hash_table = shell->priv->backends_by_name; return g_hash_table_lookup (hash_table, name); } /** * e_shell_get_backend_by_scheme: * @shell: an #EShell * @scheme: a URI scheme * * Returns the #EShellBackend that implements the given URI scheme, * or %NULL if @scheme is not recognized. * * Returns: the #EShellBackend that implements @scheme, or %NULL **/ EShellBackend * e_shell_get_backend_by_scheme (EShell *shell, const gchar *scheme) { GHashTable *hash_table; g_return_val_if_fail (E_IS_SHELL (shell), NULL); g_return_val_if_fail (scheme != NULL, NULL); hash_table = shell->priv->backends_by_scheme; return g_hash_table_lookup (hash_table, scheme); } /** * e_shell_get_shell_settings: * @shell: an #EShell * * Returns the #EShellSettings instance for @shell. * * Returns: the #EShellSettings instance for @shell **/ EShellSettings * e_shell_get_shell_settings (EShell *shell) { g_return_val_if_fail (E_IS_SHELL (shell), NULL); return shell->priv->settings; } /** * e_shell_get_gconf_client: * @shell: an #EShell * * Returns the default #GConfClient. This function is purely for * convenience. The @shell owns the reference so you don't have to. * * Returns: the default #GConfClient **/ GConfClient * e_shell_get_gconf_client (EShell *shell) { g_return_val_if_fail (E_IS_SHELL (shell), NULL); return shell->priv->gconf_client; } /** * e_shell_create_shell_window: * @shell: an #EShell * @view_name: name of the initial shell view, or %NULL * * Creates a new #EShellWindow and emits the #EShell::window-created * signal. Use this function instead of e_shell_window_new() so that * @shell can track the window. * * Returns: a new #EShellWindow **/ GtkWidget * e_shell_create_shell_window (EShell *shell, const gchar *view_name) { GtkWidget *shell_window; UniqueMessageData *data; UniqueApp *app; g_return_val_if_fail (E_IS_SHELL (shell), NULL); app = UNIQUE_APP (shell); if (unique_app_is_running (app)) goto unique; view_name = e_shell_get_canonical_name (shell, view_name); /* EShellWindow initializes its active view from a GConf key, * so set the key ahead of time to control the intial view. */ if (view_name != NULL) { GConfClient *client; const gchar *key; GError *error = NULL; client = e_shell_get_gconf_client (shell); key = "/apps/evolution/shell/view_defaults/component_id"; gconf_client_set_string (client, key, view_name, &error); if (error != NULL) { g_warning ("%s", error->message); g_error_free (error); } } shell_window = e_shell_window_new ( shell, shell->priv->safe_mode, shell->priv->geometry); /* Clear the first-time-only options. */ shell->priv->safe_mode = FALSE; g_free (shell->priv->geometry); shell->priv->geometry = NULL; gtk_widget_show (shell_window); return shell_window; unique: /* Send a message to the other Evolution process. */ /* XXX Do something with UniqueResponse? */ if (view_name != NULL) { data = unique_message_data_new (); unique_message_data_set_text (data, view_name, -1); unique_app_send_message (app, UNIQUE_NEW, data); unique_message_data_free (data); } else unique_app_send_message (app, UNIQUE_ACTIVATE, NULL); return NULL; } /** * e_shell_handle_uris: * @shell: an #EShell * @uris: %NULL-terminated list of URIs * @do_import: request an import of the URIs * * Emits the #EShell::handle-uri signal for each URI. * * Returns: the number of URIs successfully handled **/ guint e_shell_handle_uris (EShell *shell, gchar **uris, gboolean do_import) { UniqueApp *app; UniqueMessageData *data; guint n_handled = 0; gint ii; g_return_val_if_fail (E_IS_SHELL (shell), FALSE); g_return_val_if_fail (uris != NULL, FALSE); app = UNIQUE_APP (shell); if (unique_app_is_running (app)) goto unique; if (do_import) { n_handled = e_shell_utils_import_uris (shell, uris, FALSE); } else { for (ii = 0; uris[ii] != NULL; ii++) { gboolean handled; g_signal_emit ( shell, signals[HANDLE_URI], 0, uris[ii], &handled); n_handled += handled ? 1 : 0; } if (n_handled == 0) n_handled = e_shell_utils_import_uris (shell, uris, TRUE); } return n_handled; unique: /* Send a message to the other Evolution process. */ /* XXX Do something with UniqueResponse? */ data = unique_message_data_new (); if (do_import) { GPtrArray *arr = g_ptr_array_new (); g_ptr_array_add (arr, (gpointer)"--import"); for (ii = 0; uris[ii] != NULL; ii++) { g_ptr_array_add (arr, uris[ii]); } g_ptr_array_add (arr, NULL); unique_message_data_set_uris (data, (gchar **)arr->pdata); g_ptr_array_free (arr, TRUE); } else { unique_message_data_set_uris (data, uris); } unique_app_send_message (app, UNIQUE_OPEN, data); unique_message_data_free (data); /* As far as we're concerned, all URIs have been handled. */ return g_strv_length (uris); } /** * e_shell_watch_window: * @shell: an #EShell * @window: a #GtkWindow * * Makes @shell "watch" a newly created toplevel window, and emits the * #EShell::window-created signal. All #EShellWindows should be * watched, along with any editor or viewer windows that may be shown in * response to e_shell_handle_uris(). When the last watched window is * closed, Evolution terminates. **/ void e_shell_watch_window (EShell *shell, GtkWindow *window) { GList *list; gchar *role; g_return_if_fail (E_IS_SHELL (shell)); g_return_if_fail (GTK_IS_WINDOW (window)); list = shell->priv->watched_windows; /* Ignore duplicates. */ if (g_list_find (list, window) != NULL) return; list = g_list_prepend (list, window); shell->priv->watched_windows = list; unique_app_watch_window (UNIQUE_APP (shell), window); /* We use the window's own type name and memory * address to form a unique window role for X11. */ role = g_strdup_printf ( "%s-%" G_GINTPTR_FORMAT, G_OBJECT_TYPE_NAME (window), (gintptr) window); gtk_window_set_role (window, role); g_free (role); g_signal_connect_swapped ( window, "delete-event", G_CALLBACK (shell_window_delete_event_cb), shell); g_signal_connect_swapped ( window, "focus-in-event", G_CALLBACK (shell_window_focus_in_event_cb), shell); g_object_weak_ref ( G_OBJECT (window), (GWeakNotify) shell_window_weak_notify_cb, shell); g_signal_emit (shell, signals[WINDOW_CREATED], 0, window); } /** * e_shell_get_watched_windows: * @shell: an #EShell * * Returns a list of windows being watched by @shell. The list is sorted * by the most recently focused window, such that the first instance is the * currently focused window. (Useful for choosing a parent for a transient * window.) The list is owned by @shell and should not be modified or freed. * * Returns: a list of watched windows **/ GList * e_shell_get_watched_windows (EShell *shell) { g_return_val_if_fail (E_IS_SHELL (shell), NULL); return shell->priv->watched_windows; } /** * e_shell_get_active_window: * @shell: an #EShell or %NULL to use the default shell * * Returns the most recently focused watched window, according to * e_shell_get_watched_windows(). Convenient for finding a parent * for a transient window. * * Note the returned window is not necessarily an #EShellWindow. * * Returns: the most recently focused watched window **/ GtkWindow * e_shell_get_active_window (EShell *shell) { GList *watched_windows; if (shell == NULL) shell = e_shell_get_default (); g_return_val_if_fail (E_IS_SHELL (shell), NULL); watched_windows = e_shell_get_watched_windows (shell); if (!watched_windows) return NULL; /* Sanity check */ g_return_val_if_fail (GTK_IS_WINDOW (watched_windows->data), NULL); return GTK_WINDOW (watched_windows->data); } /** * e_shell_send_receive: * @shell: an #EShell * @parent: the parent #GtkWindow * * Emits the #EShell::send-receive signal. **/ void e_shell_send_receive (EShell *shell, GtkWindow *parent) { g_return_if_fail (E_IS_SHELL (shell)); g_return_if_fail (GTK_IS_WINDOW (parent)); g_signal_emit (shell, signals[SEND_RECEIVE], 0, parent); } /** * e_shell_get_express_mode: * @shell: an #EShell * * Returns %TRUE if Evolution is in express mode. * * Returns: %TRUE if Evolution is in express mode **/ gboolean e_shell_get_express_mode (EShell *shell) { g_return_val_if_fail (E_IS_SHELL (shell), FALSE); return shell->priv->express_mode; } /** * e_shell_get_module_directory: * @shell: an #EShell * * Returns the directory from which #EModules were loaded. * * Returns: the #EModule directory **/ const gchar * e_shell_get_module_directory (EShell *shell) { g_return_val_if_fail (E_IS_SHELL (shell), NULL); return shell->priv->module_directory; } /** * e_shell_get_network_available: * @shell: an #EShell * * Returns %TRUE if a network is available. * * Returns: %TRUE if a network is available **/ gboolean e_shell_get_network_available (EShell *shell) { g_return_val_if_fail (E_IS_SHELL (shell), FALSE); return shell->priv->network_available; } /** * e_shell_set_network_available: * @shell: an #EShell * @network_available: whether a network is available * * Sets whether a network is available. This is usually called in * response to a status change signal from NetworkManager. If the * network becomes unavailable while #EShell:online is %TRUE, the * @shell will force #EShell:online to %FALSE until the network * becomes available again. **/ void e_shell_set_network_available (EShell *shell, gboolean network_available) { g_return_if_fail (E_IS_SHELL (shell)); if (network_available == shell->priv->network_available) return; shell->priv->network_available = network_available; g_object_notify (G_OBJECT (shell), "network-available"); /* If we're being forced offline, perhaps due to a network outage, * reconnect automatically when the network becomes available. */ if (!network_available && shell->priv->online) { g_message ("Network disconnected. Forced offline."); e_shell_set_online (shell, FALSE); shell->priv->auto_reconnect = TRUE; } else if (network_available && shell->priv->auto_reconnect) { g_message ("Connection established. Going online."); e_shell_set_online (shell, TRUE); shell->priv->auto_reconnect = FALSE; } } /** * e_shell_get_online: * @shell: an #EShell * * Returns %TRUE if Evolution is online, %FALSE if Evolution is offline. * Evolution may be offline because the user elected to work offline, or * because the network has become unavailable. * * Returns: %TRUE if Evolution is online **/ gboolean e_shell_get_online (EShell *shell) { g_return_val_if_fail (E_IS_SHELL (shell), FALSE); return shell->priv->online; } /** * e_shell_set_online: * @shell: an #EShell * @online: %TRUE to go online, %FALSE to go offline * * Asynchronously places Evolution in online or offline mode. **/ void e_shell_set_online (EShell *shell, gboolean online) { g_return_if_fail (E_IS_SHELL (shell)); if (online == shell->priv->online) return; if (online) shell_prepare_for_online (shell); else shell_prepare_for_offline (shell); } /** * e_shell_get_preferences_window: * @shell: an #EShell * * Returns the Evolution Preferences window. * * Returns: the preferences window **/ GtkWidget * e_shell_get_preferences_window (EShell *shell) { g_return_val_if_fail (E_IS_SHELL (shell), NULL); return shell->priv->preferences_window; } /** * e_shell_event: * @shell: an #EShell * @event_name: the name of the event * @event_data: data associated with the event * * The #EShell::event signal acts as a cheap mechanism for broadcasting * events to the rest of the application, such as new mail arriving. The * @event_name is used as the signal detail, and @event_data may point to * an object or data structure associated with the event. **/ void e_shell_event (EShell *shell, const gchar *event_name, gpointer event_data) { GQuark detail; g_return_if_fail (E_IS_SHELL (shell)); g_return_if_fail (event_name != NULL); detail = g_quark_from_string (event_name); g_signal_emit (shell, signals[EVENT], detail, event_data); } /** * e_shell_quit: * @shell: an #EShell * * Requests an application shutdown. This happens in two phases: the * first is synchronous, the second is asynchronous. * * In the first phase, the @shell emits a #EShell::quit-requested signal * to potentially give the user a chance to cancel shutdown. If the user * cancels shutdown, the function returns %FALSE. Otherwise it proceeds * into the second phase. * * In the second phase, the @shell emits a #EShell::prepare-for-quit * signal and immediately returns %TRUE. Signal handlers may delay the * actual application shutdown while they clean up resources, but there * is no way to cancel shutdown at this point. * * Consult the documentation for these two signals for details on how * to handle them. * * Returns: %TRUE if shutdown is underway, %FALSE if it was cancelled **/ gboolean e_shell_quit (EShell *shell) { UniqueApp *app; UniqueResponse response; g_return_val_if_fail (E_IS_SHELL (shell), FALSE); app = UNIQUE_APP (shell); if (unique_app_is_running (app)) goto unique; if (!shell_request_quit (shell)) return FALSE; shell_prepare_for_quit (shell); return TRUE; unique: /* Send a message to the other Evolution process. */ response = unique_app_send_message (app, UNIQUE_CLOSE, NULL); return (response == UNIQUE_RESPONSE_OK); } /** * e_shell_cancel_quit: * @shell: an #EShell * * This function may only be called from #EShell::quit-requested signal * handlers to prevent Evolution from quitting. Calling this will stop * further emission of the #EShell::quit-requested signal. * * Note: This function has no effect during a #EShell::prepare-for-quit * signal emission. **/ void e_shell_cancel_quit (EShell *shell) { g_return_if_fail (E_IS_SHELL (shell)); shell->priv->quit_cancelled = TRUE; g_signal_stop_emission (shell, signals[QUIT_REQUESTED], 0); }