Use GtkApplication inhibit API

This will help prevent users from inadvertently loosing data when logging out
with unsaved files.

Based on: 05918e07ce

xed/xed-commands-file.c

@@ -1125,9 +1125,9 @@ void
 _xed_cmd_file_revert (GtkAction   *action,
                       XedWindow *window)
 {
-    XedTab       *tab;
+    XedTab *tab;
-    XedDocument  *doc;
+    XedDocument *doc;
-    GtkWidget      *dialog;
+    GtkWidget *dialog;
     GtkWindowGroup *wg;
 
     xed_debug (DEBUG_COMMANDS);
@@ -1138,7 +1138,7 @@ _xed_cmd_file_revert (GtkAction   *action,
     /* If we are already displaying a notification
      * reverting will drop local modifications, do
      * not bug the user further */
-    if (xed_tab_get_state (tab) == XED_TAB_STATE_EXTERNALLY_MODIFIED_NOTIFICATION)
+    if (xed_tab_get_state (tab) == XED_TAB_STATE_EXTERNALLY_MODIFIED_NOTIFICATION || _xed_tab_get_can_close (tab))
     {
         do_revert (window, tab);
         return;
@@ -1532,7 +1532,7 @@ tab_can_close (XedTab  *tab,
 
     doc = xed_tab_get_document (tab);
 
-    if (!_xed_tab_can_close (tab))
+    if (!_xed_tab_get_can_close (tab))
     {
         GtkWidget *dlg;
 

xed/xed-notebook.c

@@ -969,6 +969,18 @@ xed_notebook_remove_all_tabs (XedNotebook *nb)
     gtk_container_foreach (GTK_CONTAINER (nb), (GtkCallback)remove_tab, nb);
 }
 
+GList *
+xed_notebook_get_all_tabs (XedNotebook *nb)
+{
+    GList *children = NULL;
+
+    g_return_val_if_fail (XED_IS_NOTEBOOK (nb), NULL);
+
+    children = gtk_container_get_children (GTK_CONTAINER (nb));
+
+    return children;
+}
+
 static void
 set_close_buttons_sensitivity (XedTab      *tab,
                                XedNotebook *nb)

xed/xed-notebook.h

@@ -110,6 +110,8 @@ void		xed_notebook_remove_tab	(XedNotebook *nb,
 
 void		xed_notebook_remove_all_tabs 	(XedNotebook *nb);
 
+GList *xed_notebook_get_all_tabs (XedNotebook *nb);
+
 void		xed_notebook_reorder_tab	(XedNotebook *src,
 			    			 XedTab      *tab,
 			    			 gint           dest_position);

xed/xed-tab.c

@@ -123,7 +123,8 @@ enum
     PROP_NAME,
     PROP_STATE,
     PROP_AUTO_SAVE,
-    PROP_AUTO_SAVE_INTERVAL
+    PROP_AUTO_SAVE_INTERVAL,
+    PROP_CAN_CLOSE
 };
 
 static gboolean xed_tab_auto_save (XedTab *tab);
@@ -227,6 +228,8 @@ xed_tab_get_property (GObject    *object,
         case PROP_AUTO_SAVE_INTERVAL:
             g_value_set_int (value, xed_tab_get_auto_save_interval (tab));
             break;
+        case PROP_CAN_CLOSE:
+            g_value_set_boolean (value, _xed_tab_get_can_close (tab));
         default:
             G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
             break;
@@ -345,6 +348,15 @@ xed_tab_class_init (XedTabClass *klass)
                                                        G_PARAM_READWRITE |
                                                        G_PARAM_STATIC_STRINGS));
 
+    g_object_class_install_property (object_class,
+                                     PROP_CAN_CLOSE,
+                                     g_param_spec_boolean ("can-close",
+                                                           "Can close",
+                                                           "Wheather the tab can be closed",
+                                                           TRUE,
+                                                           G_PARAM_READABLE |
+                                                           G_PARAM_STATIC_STRINGS));
+
     g_type_class_add_private (object_class, sizeof (XedTabPrivate));
 }
 
@@ -475,6 +487,7 @@ xed_tab_set_state (XedTab      *tab,
     update_auto_save_timeout (tab);
 
     g_object_notify (G_OBJECT (tab), "state");
+    g_object_notify (G_OBJECT (tab), "can-close");
 }
 
 static void
@@ -504,6 +517,7 @@ document_modified_changed (GtkTextBuffer *document,
                            XedTab        *tab)
 {
     g_object_notify (G_OBJECT (tab), "name");
+    g_object_notify (G_OBJECT (tab), "can-close");
 }
 
 static void
@@ -2830,7 +2844,7 @@ _xed_tab_mark_for_closing (XedTab *tab)
 }
 
 gboolean
-_xed_tab_can_close (XedTab *tab)
+_xed_tab_get_can_close (XedTab *tab)
 {
     XedDocument *doc;
     XedTabState  ts;

xed/xed-tab.h

@@ -156,7 +156,7 @@ void _xed_tab_save_as_async (XedTab                   *tab,
 void _xed_tab_print (XedTab *tab);
 void _xed_tab_print_preview (XedTab *tab);
 void _xed_tab_mark_for_closing (XedTab *tab);
-gboolean _xed_tab_can_close (XedTab *tab);
+gboolean _xed_tab_get_can_close (XedTab *tab);
 GtkWidget *_xed_tab_get_view_frame (XedTab *tab);
 
 G_END_DECLS

xed/xed-window-private.h

@@ -107,6 +107,8 @@ struct _XedWindowPrivate
     gint            height;
     GdkWindowState  window_state;
 
+    guint inhibition_cookie;
+
     gint side_panel_size;
     gint bottom_panel_size;
 

xed/xed-window.c

@@ -2406,6 +2406,43 @@ update_window_state (XedWindow *window)
     }
 }
 
+static void
+update_can_close (XedWindow *window)
+{
+    XedWindowPrivate *priv = window->priv;
+    GList *tabs;
+    GList *l;
+    gboolean can_close = TRUE;
+
+    tabs = xed_notebook_get_all_tabs (priv->notebook);
+
+    for (l = tabs; l != NULL; l = g_list_next (l))
+    {
+        XedTab *tab = l->data;
+
+        if (!_xed_tab_get_can_close (tab))
+        {
+            can_close = FALSE;
+            break;
+        }
+    }
+
+    if (can_close && (priv->inhibition_cookie != 0))
+    {
+        gtk_application_uninhibit (GTK_APPLICATION (g_application_get_default ()), priv->inhibition_cookie);
+        priv->inhibition_cookie = 0;
+    }
+    else if (!can_close && (priv->inhibition_cookie == 0))
+    {
+        priv->inhibition_cookie = gtk_application_inhibit (GTK_APPLICATION (g_application_get_default ()),
+                                                           GTK_WINDOW (window),
+                                                           GTK_APPLICATION_INHIBIT_LOGOUT,
+                                                           _("There are unsaved documents"));
+    }
+
+    g_list_free (tabs);
+}
+
 static void
 sync_state (XedTab *tab,
             GParamSpec *pspec,
@@ -2463,6 +2500,14 @@ sync_name (XedTab *tab,
     peas_extension_set_call (window->priv->extensions, "update_state");
 }
 
+static void
+sync_can_close (XedTab     *tab,
+                GParamSpec *pspec,
+                XedWindow  *window)
+{
+    update_can_close (window);
+}
+
 static XedWindow *
 get_drop_window (GtkWidget *widget)
 {
@@ -2942,24 +2987,26 @@ notebook_tab_added (XedNotebook *notebook,
     /* IMPORTANT: remember to disconnect the signal in notebook_tab_removed
      * if a new signal is connected here */
 
-    g_signal_connect(tab, "notify::name", G_CALLBACK (sync_name), window);
+    g_signal_connect (tab, "notify::name", G_CALLBACK (sync_name), window);
-    g_signal_connect(tab, "notify::state", G_CALLBACK (sync_state), window);
+    g_signal_connect (tab, "notify::state", G_CALLBACK (sync_state), window);
+    g_signal_connect (tab, "notify::can-close", G_CALLBACK (sync_can_close), window);
 
-    g_signal_connect(doc, "cursor-moved", G_CALLBACK (update_cursor_position_statusbar), window);
+    g_signal_connect (doc, "cursor-moved", G_CALLBACK (update_cursor_position_statusbar), window);
-    g_signal_connect(doc, "notify::search-text", G_CALLBACK (search_text_notify_cb), window);
+    g_signal_connect (doc, "notify::search-text", G_CALLBACK (search_text_notify_cb), window);
-    g_signal_connect(doc, "notify::can-undo", G_CALLBACK (can_undo), window);
+    g_signal_connect (doc, "notify::can-undo", G_CALLBACK (can_undo), window);
-    g_signal_connect(doc, "notify::can-redo", G_CALLBACK (can_redo), window);
+    g_signal_connect (doc, "notify::can-redo", G_CALLBACK (can_redo), window);
-    g_signal_connect(doc, "notify::has-selection", G_CALLBACK (selection_changed), window);
+    g_signal_connect (doc, "notify::has-selection", G_CALLBACK (selection_changed), window);
-    g_signal_connect(doc, "notify::language", G_CALLBACK (sync_languages_menu), window);
+    g_signal_connect (doc, "notify::language", G_CALLBACK (sync_languages_menu), window);
-    g_signal_connect(doc, "notify::read-only", G_CALLBACK (readonly_changed), window);
+    g_signal_connect (doc, "notify::read-only", G_CALLBACK (readonly_changed), window);
-    g_signal_connect(view, "toggle_overwrite", G_CALLBACK (update_overwrite_mode_statusbar), window);
+    g_signal_connect (view, "toggle_overwrite", G_CALLBACK (update_overwrite_mode_statusbar), window);
-    g_signal_connect(view, "notify::editable", G_CALLBACK (editable_changed), window);
+    g_signal_connect (view, "notify::editable", G_CALLBACK (editable_changed), window);
 
     update_documents_list_menu (window);
 
     g_signal_connect(view, "drop_uris", G_CALLBACK (drop_uris_cb), NULL);
 
     update_window_state (window);
+    update_can_close (window);
 
     g_signal_emit (G_OBJECT(window), signals[TAB_ADDED], 0, tab);
 }
@@ -2981,18 +3028,19 @@ notebook_tab_removed (XedNotebook *notebook,
     view = xed_tab_get_view (tab);
     doc = xed_tab_get_document (tab);
 
-    g_signal_handlers_disconnect_by_func(tab, G_CALLBACK (sync_name), window);
+    g_signal_handlers_disconnect_by_func (tab, G_CALLBACK (sync_name), window);
-    g_signal_handlers_disconnect_by_func(tab, G_CALLBACK (sync_state), window);
+    g_signal_handlers_disconnect_by_func (tab, G_CALLBACK (sync_state), window);
-    g_signal_handlers_disconnect_by_func(doc, G_CALLBACK (update_cursor_position_statusbar), window);
+    g_signal_handlers_disconnect_by_func (tab, G_CALLBACK (sync_can_close), window);
-    g_signal_handlers_disconnect_by_func(doc, G_CALLBACK (search_text_notify_cb), window);
+    g_signal_handlers_disconnect_by_func (doc, G_CALLBACK (update_cursor_position_statusbar), window);
-    g_signal_handlers_disconnect_by_func(doc, G_CALLBACK (can_undo), window);
+    g_signal_handlers_disconnect_by_func (doc, G_CALLBACK (search_text_notify_cb), window);
-    g_signal_handlers_disconnect_by_func(doc, G_CALLBACK (can_redo), window);
+    g_signal_handlers_disconnect_by_func (doc, G_CALLBACK (can_undo), window);
-    g_signal_handlers_disconnect_by_func(doc, G_CALLBACK (selection_changed), window);
+    g_signal_handlers_disconnect_by_func (doc, G_CALLBACK (can_redo), window);
-    g_signal_handlers_disconnect_by_func(doc, G_CALLBACK (sync_languages_menu), window);
+    g_signal_handlers_disconnect_by_func (doc, G_CALLBACK (selection_changed), window);
-    g_signal_handlers_disconnect_by_func(doc, G_CALLBACK (readonly_changed), window);
+    g_signal_handlers_disconnect_by_func (doc, G_CALLBACK (sync_languages_menu), window);
-    g_signal_handlers_disconnect_by_func(view, G_CALLBACK (update_overwrite_mode_statusbar), window);
+    g_signal_handlers_disconnect_by_func (doc, G_CALLBACK (readonly_changed), window);
-    g_signal_handlers_disconnect_by_func(view, G_CALLBACK (editable_changed), window);
+    g_signal_handlers_disconnect_by_func (view, G_CALLBACK (update_overwrite_mode_statusbar), window);
-    g_signal_handlers_disconnect_by_func(view, G_CALLBACK (drop_uris_cb), NULL);
+    g_signal_handlers_disconnect_by_func (view, G_CALLBACK (editable_changed), window);
+    g_signal_handlers_disconnect_by_func (view, G_CALLBACK (drop_uris_cb), NULL);
 
     if (window->priv->tab_width_id && tab == xed_window_get_active_tab (window))
     {
@@ -3056,6 +3104,7 @@ notebook_tab_removed (XedNotebook *notebook,
     }
 
     update_window_state (window);
+    update_can_close (window);
 
     g_signal_emit (G_OBJECT(window), signals[TAB_REMOVED], 0, tab);
 }
@@ -3502,6 +3551,7 @@ xed_window_init (XedWindow *window)
     window->priv->num_tabs = 0;
     window->priv->removing_tabs = FALSE;
     window->priv->state = XED_WINDOW_STATE_NORMAL;
+    window->priv->inhibition_cookie = 0;
     window->priv->dispose_has_run = FALSE;
     window->priv->fullscreen_controls = NULL;
     window->priv->fullscreen_animation_timeout_id = 0;
@@ -4152,7 +4202,7 @@ xed_window_get_unsaved_documents (XedWindow *window)
     {
         XedTab *tab;
         tab = XED_TAB(l->data);
-        if (!_xed_tab_can_close (tab))
+        if (!_xed_tab_get_can_close (tab))
         {
             XedDocument *doc;
             doc = xed_tab_get_document (tab);