[gnome-builder] libide/editor: add scaffolding for inhibit logout

[Christian Hergert <chergert src gnome org>]

commit 5add2144e016d50d7fa9abe8730b28935fd8fd2b
Author: Christian Hergert <chergert redhat com>
Date:   Tue Sep 13 17:38:38 2022 -0700

    libide/editor: add scaffolding for inhibit logout

 src/libide/editor/ide-editor-page-private.h |  3 +++
 src/libide/editor/ide-editor-page.c         | 34 +++++++++++++++++++++++++++++
 2 files changed, 37 insertions(+)
---
diff --git a/src/libide/editor/ide-editor-page-private.h b/src/libide/editor/ide-editor-page-private.h
index 86fa88ab9..d904d7c5b 100644
--- a/src/libide/editor/ide-editor-page-private.h
+++ b/src/libide/editor/ide-editor-page-private.h
@@ -37,6 +37,9 @@ struct _IdeEditorPage
   IdeBuffer               *buffer;
   IdeGutter               *gutter;
 
+  /* Inhibit logout from */
+  guint                    inhibit_cookie;
+
   /* Settings Management */
   IdeBindingGroup         *buffer_file_settings;
   IdeBindingGroup         *view_file_settings;
diff --git a/src/libide/editor/ide-editor-page.c b/src/libide/editor/ide-editor-page.c
index 144dd0ba5..366a09074 100644
--- a/src/libide/editor/ide-editor-page.c
+++ b/src/libide/editor/ide-editor-page.c
@@ -50,6 +50,38 @@ G_DEFINE_TYPE (IdeEditorPage, ide_editor_page, IDE_TYPE_PAGE)
 
 static GParamSpec *properties [N_PROPS];
 
+static void
+ide_editor_page_set_inhibit_logout (IdeEditorPage *self,
+                                    gboolean       inhibit_logout)
+{
+  GtkApplication *app;
+  GtkRoot *window;
+
+  g_assert (IDE_IS_EDITOR_PAGE (self));
+
+  inhibit_logout = !!inhibit_logout;
+
+  if (inhibit_logout == !!self->inhibit_cookie)
+    return;
+
+  app = GTK_APPLICATION (IDE_APPLICATION_DEFAULT);
+  window = gtk_widget_get_root (GTK_WIDGET (self));
+
+  if (self->inhibit_cookie)
+    {
+      gtk_application_uninhibit (app, self->inhibit_cookie);
+      self->inhibit_cookie = 0;
+    }
+  else if (GTK_IS_WINDOW (window))
+    {
+      self->inhibit_cookie =
+        gtk_application_inhibit (app,
+                                 GTK_WINDOW (window),
+                                 GTK_APPLICATION_INHIBIT_LOGOUT,
+                                 _("There are unsaved documents"));
+    }
+}
+
 static void
 ide_editor_page_query_file_info_cb (GObject      *object,
                                     GAsyncResult *result,
@@ -596,6 +628,8 @@ ide_editor_page_dispose (GObject *object)
 {
   IdeEditorPage *self = (IdeEditorPage *)object;
 
+  ide_editor_page_set_inhibit_logout (self, FALSE);
+
   ide_editor_page_set_gutter (self, NULL);
 
   ide_clear_and_destroy_object (&self->addins);