[recipes] window: Add fullscreen api

[Matthias Clasen <matthiasc src gnome org>]

commit e28d2c04219d201d62778bb76d96362db74c6dbe
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Jan 23 18:42:44 2017 +0300

    window: Add fullscreen api
    
    We can't just use the GtkWindow api unfortunately, since there is
    no way to query the current state.

 src/gr-window.c |   12 ++++++++++++
 src/gr-window.h |    2 ++
 2 files changed, 14 insertions(+), 0 deletions(-)
---
diff --git a/src/gr-window.c b/src/gr-window.c
index eb7b85e..38cc95d 100644
--- a/src/gr-window.c
+++ b/src/gr-window.c
@@ -66,6 +66,7 @@ struct _GrWindow
         GrRecipeImporter *importer;
 
         GQueue *back_entry_stack;
+        gboolean is_fullscreen;
 };
 
 G_DEFINE_TYPE (GrWindow, gr_window, GTK_TYPE_APPLICATION_WINDOW)
@@ -173,6 +174,17 @@ add_recipe (GrWindow *window)
         }
 }
 
+void
+gr_window_set_fullscreen (GrWindow *window,
+                          gboolean  fullscreen)
+{
+        if (fullscreen)
+                gtk_window_fullscreen (GTK_WINDOW (window));
+        else
+                gtk_window_unfullscreen (GTK_WINDOW (window));
+        window->is_fullscreen = fullscreen;
+}
+
 static void
 stop_search (GrWindow *window)
 {
diff --git a/src/gr-window.h b/src/gr-window.h
index a83f397..c53f08b 100644
--- a/src/gr-window.h
+++ b/src/gr-window.h
@@ -62,5 +62,7 @@ void            gr_window_show_search_by_ingredients (GrWindow   *window,
                                                       const char *ingredient);
 void            gr_window_offer_undelete             (GrWindow   *window,
                                                       GrRecipe   *recipe);
+void            gr_window_set_fullscreen             (GrWindow   *window,
+                                                      gboolean    fullscreen);
 
 G_END_DECLS