From af9183664c534c39d12e34b5c8e7c14ea189ce8b Mon Sep 17 00:00:00 2001 From: Lars Uebernickel Date: Wed, 5 Sep 2012 15:21:16 +0200 Subject: Watch desktop files for changes This introduces a slightly clumsy "destroy" signal for AppSection to notify outsiders that the desktop file was deleted. This will do for now, but a larger refactoring which pulls all the desktop-file-reading code out of appsection is in order. --- src/app-section.c | 121 ++++++++++++++++++++++++++++++++++++++++++++++-------- 1 file changed, 105 insertions(+), 16 deletions(-) (limited to 'src/app-section.c') diff --git a/src/app-section.c b/src/app-section.c index bed1302..58f1612 100644 --- a/src/app-section.c +++ b/src/app-section.c @@ -37,6 +37,7 @@ with this program. If not, see . struct _AppSectionPrivate { GDesktopAppInfo * appinfo; + GFileMonitor *desktop_file_monitor; guint unreadcount; IndicatorDesktopShortcuts * ids; @@ -64,6 +65,7 @@ enum { }; static GParamSpec *properties[NUM_PROPERTIES]; +guint destroy_signal; /* Prototypes */ static void app_section_class_init (AppSectionClass *klass); @@ -98,6 +100,11 @@ static void action_removed (GActionGroup *group, const gchar *action_name, gpointer user_data); static gboolean action_draws_attention (GVariant *state); +static void desktop_file_changed_cb (GFileMonitor *monitor, + GFile *file, + GFile *other_file, + GFileMonitorEvent event, + gpointer user_data); /* GObject Boilerplate */ G_DEFINE_TYPE (AppSection, app_section, G_TYPE_OBJECT); @@ -138,6 +145,14 @@ app_section_class_init (AppSectionClass *klass) G_PARAM_READABLE); g_object_class_install_properties (object_class, NUM_PROPERTIES, properties); + + destroy_signal = g_signal_new ("destroy", + APP_SECTION_TYPE, + G_SIGNAL_RUN_FIRST, + 0, + NULL, NULL, + g_cclosure_marshal_VOID__VOID, + G_TYPE_NONE, 0); } static void @@ -209,12 +224,18 @@ app_section_set_property (GObject *object, G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); } } + static void app_section_dispose (GObject *object) { AppSection * self = APP_SECTION(object); AppSectionPrivate * priv = self->priv; + if (priv->desktop_file_monitor) { + g_signal_handlers_disconnect_by_func (priv->desktop_file_monitor, desktop_file_changed_cb, self); + g_clear_object (&priv->desktop_file_monitor); + } + g_clear_object (&priv->menu); g_clear_object (&priv->static_shortcuts); @@ -289,6 +310,9 @@ keyfile_loaded (GObject *source_object, G_KEY_FILE_DESKTOP_GROUP, "X-MessagingMenu-UsesChatSection", &error); + + g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_USES_CHAT_STATUS]); + if (error) { if (error->code != G_KEY_FILE_ERROR_KEY_NOT_FOUND) { g_warning ("could not read X-MessagingMenu-UsesChatSection: %s", @@ -298,34 +322,48 @@ keyfile_loaded (GObject *source_object, goto out; } - if (self->priv->uses_chat_status) - g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_USES_CHAT_STATUS]); - out: g_key_file_free (keyfile); g_free (contents); } static void -app_section_set_app_info (AppSection *self, - GDesktopAppInfo *appinfo) +g_menu_clear (GMenu *menu) +{ + gint n_items = g_menu_model_get_n_items (G_MENU_MODEL (menu)); + + while (n_items--) + g_menu_remove (menu, 0); +} + +static void +g_simple_action_group_clear (GSimpleActionGroup *group) +{ + gchar **actions; + gchar **it; + + actions = g_action_group_list_actions (G_ACTION_GROUP (group)); + for (it = actions; *it; it++) + g_simple_action_group_remove (group, *it); + + g_strfreev (actions); +} + +static void +app_section_update_menu (AppSection *self) { AppSectionPrivate *priv = self->priv; GSimpleAction *launch; GFile *keyfile; GMenuItem *item; gchar *iconstr; + gboolean is_running; - g_return_if_fail (priv->appinfo == NULL); + g_menu_clear (priv->menu); + g_simple_action_group_clear (priv->static_shortcuts); - if (appinfo == NULL) { - g_warning ("appinfo must not be NULL"); - return; - } - - priv->appinfo = g_object_ref (appinfo); - - launch = g_simple_action_new_stateful ("launch", NULL, g_variant_new_boolean (FALSE)); + is_running = priv->name_watch_id > 0; + launch = g_simple_action_new_stateful ("launch", NULL, g_variant_new_boolean (is_running)); g_signal_connect (launch, "activate", G_CALLBACK (activate_cb), self); g_signal_connect (launch, "change-state", G_CALLBACK (launch_action_change_state), self); g_simple_action_group_insert (priv->static_shortcuts, G_ACTION (launch)); @@ -366,14 +404,65 @@ app_section_set_app_info (AppSection *self, keyfile = g_file_new_for_path (g_desktop_app_info_get_filename (priv->appinfo)); g_file_load_contents_async (keyfile, NULL, keyfile_loaded, self); - g_object_unref (keyfile); - g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_APPINFO]); g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_ACTIONS]); + g_object_unref (keyfile); g_object_unref (launch); } +static void +desktop_file_changed_cb (GFileMonitor *monitor, + GFile *file, + GFile *other_file, + GFileMonitorEvent event, + gpointer user_data) +{ + AppSection *self = user_data; + + if (event == G_FILE_MONITOR_EVENT_CHANGED) { + app_section_update_menu (self); + } + else if (event == G_FILE_MONITOR_EVENT_DELETED || + event == G_FILE_MONITOR_EVENT_UNMOUNTED) { + g_signal_emit (self, destroy_signal, 0); + } +} + +static void +app_section_set_app_info (AppSection *self, + GDesktopAppInfo *appinfo) +{ + AppSectionPrivate *priv = self->priv; + GFile *desktop_file; + GError *error = NULL; + + g_return_if_fail (priv->appinfo == NULL); + g_return_if_fail (priv->desktop_file_monitor == NULL); + + if (appinfo == NULL) { + g_warning ("appinfo must not be NULL"); + return; + } + + priv->appinfo = g_object_ref (appinfo); + + desktop_file = g_file_new_for_path (g_desktop_app_info_get_filename (appinfo)); + priv->desktop_file_monitor = g_file_monitor (desktop_file, G_FILE_MONITOR_SEND_MOVED, NULL, &error); + if (priv->desktop_file_monitor == NULL) { + g_warning ("unable to watch desktop file: %s", error->message); + g_error_free (error); + } + g_signal_connect (priv->desktop_file_monitor, "changed", + G_CALLBACK (desktop_file_changed_cb), self); + + g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_APPINFO]); + + app_section_update_menu (self); + + g_object_unref (desktop_file); +} + AppSection * app_section_new (GDesktopAppInfo *appinfo) { -- cgit v1.2.3