[libpanel/wip/chergert/fix-14] frame: attempt to save modified pages with save delegates

[Christian Hergert <chergert src gnome org>]

commit 002e6ad9326ac285fce1f47ae8b31969af450b57
Author: Christian Hergert <chergert redhat com>
Date:   Tue Sep 13 06:04:53 2022 -0700

    frame: attempt to save modified pages with save delegates
    
    If the page has enough information for us to perform a save request, then
    we should go about doing that as part of the close-page process.

 src/panel-frame.c  | 67 +++++++++++++++++++++++++++++++++++++++++++++++++++++-
 src/panel-frame.ui |  1 +
 2 files changed, 67 insertions(+), 1 deletion(-)
---
diff --git a/src/panel-frame.c b/src/panel-frame.c
index 5b1dc22..9c4a8f7 100644
--- a/src/panel-frame.c
+++ b/src/panel-frame.c
@@ -80,6 +80,69 @@ panel_frame_new (void)
   return g_object_new (PANEL_TYPE_FRAME, NULL);
 }
 
+static void
+panel_frame_close_page_save_cb (GObject      *object,
+                                GAsyncResult *result,
+                                gpointer      user_data)
+{
+  PanelSaveDialog *dialog = (PanelSaveDialog *)object;
+  PanelFrame *self = user_data;
+  GError *error = NULL;
+
+  g_assert (PANEL_IS_SAVE_DIALOG (dialog));
+  g_assert (G_IS_ASYNC_RESULT (result));
+  g_assert (PANEL_IS_FRAME (self));
+
+  if (!panel_save_dialog_run_finish (dialog, result, &error))
+    {
+      if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
+        g_warning ("%s", error->message);
+      g_clear_error (&error);
+    }
+
+  g_clear_object (&self);
+}
+
+static gboolean
+panel_frame_close_page_cb (PanelFrame *self,
+                           AdwTabPage *tab_page,
+                           AdwTabView *tab_view)
+{
+  PanelSaveDelegate *delegate;
+  PanelSaveDialog *dialog;
+  PanelWidget *widget;
+  GtkRoot *root;
+
+  g_assert (PANEL_IS_FRAME (self));
+  g_assert (ADW_IS_TAB_PAGE (tab_page));
+  g_assert (ADW_IS_TAB_VIEW (tab_view));
+
+  widget = PANEL_WIDGET (adw_tab_page_get_child (tab_page));
+
+  if (widget != panel_frame_get_visible_child (self))
+    adw_tab_view_set_selected_page (tab_view, tab_page);
+
+  if (!_panel_widget_can_save (widget))
+    return FALSE;
+
+  root = gtk_widget_get_root (GTK_WIDGET (self));
+  delegate = panel_widget_get_save_delegate (widget);
+  dialog = PANEL_SAVE_DIALOG (panel_save_dialog_new ());
+
+  gtk_window_set_transient_for (GTK_WINDOW (dialog), GTK_WINDOW (root));
+  gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
+  panel_save_dialog_add_delegate (dialog, delegate);
+
+  panel_save_dialog_run_async (dialog,
+                               NULL,
+                               panel_frame_close_page_save_cb,
+                               g_object_ref (self));
+
+  adw_tab_view_close_page_finish (tab_view, tab_page, FALSE);
+
+  return TRUE;
+}
+
 static void
 close_page_or_frame_action (GtkWidget  *widget,
                             const char *action_name,
@@ -713,8 +776,10 @@ panel_frame_class_init (PanelFrameClass *klass)
   gtk_widget_class_bind_template_child_private (widget_class, PanelFrame, frame_menu);
   gtk_widget_class_bind_template_child_private (widget_class, PanelFrame, drop_controls);
   gtk_widget_class_bind_template_child_private (widget_class, PanelFrame, controls_overlay);
-  gtk_widget_class_bind_template_callback (widget_class, panel_frame_setup_menu_cb);
+
+  gtk_widget_class_bind_template_callback (widget_class, panel_frame_close_page_cb);
   gtk_widget_class_bind_template_callback (widget_class, panel_frame_notify_selected_page_cb);
+  gtk_widget_class_bind_template_callback (widget_class, panel_frame_setup_menu_cb);
 
   gtk_widget_class_install_action (widget_class, "page.move-right", NULL, page_move_right_action);
   gtk_widget_class_install_action (widget_class, "page.move-left", NULL, page_move_left_action);
diff --git a/src/panel-frame.ui b/src/panel-frame.ui
index 1f57983..d269e72 100644
--- a/src/panel-frame.ui
+++ b/src/panel-frame.ui
@@ -40,6 +40,7 @@
                 <property name="hexpand">true</property>
                 <child>
                   <object class="AdwTabView" id="tab_view">
+                    <signal name="close-page" handler="panel_frame_close_page_cb" swapped="true" 
object="PanelFrame"/>
                     <signal name="notify::selected-page" handler="panel_frame_notify_selected_page_cb" 
swapped="true" after="true" object="PanelFrame"/>
                     <signal name="setup-menu" handler="panel_frame_setup_menu_cb"/>
                     <layout>