[gtk+] window: Hide frame buttons when appropriate

[Matthias Clasen <matthiasc src gnome org>]

commit 93c345e49f4190800128178348f4680bc40c7fbe
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Mar 9 22:28:39 2013 -0500

    window: Hide frame buttons when appropriate
    
    Hide the close button if the window is not deletable, hide the
    maximize button if the window is not resizable, and hide all
    buttons if the window is a dialog.
    
    Update buttons when the window state changes.

 gtk/gtkwindow.c |   63 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 63 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkwindow.c b/gtk/gtkwindow.c
index 968655d..a6bfa20 100644
--- a/gtk/gtkwindow.c
+++ b/gtk/gtkwindow.c
@@ -435,6 +435,7 @@ static void     gtk_window_unrealize_icon             (GtkWindow    *window);
 static void     resize_grip_create_window             (GtkWindow    *window);
 static void     resize_grip_destroy_window            (GtkWindow    *window);
 static void     update_grip_visibility                (GtkWindow    *window);
+static void     update_window_buttons                 (GtkWindow    *window);
 
 static void        gtk_window_notify_keys_changed (GtkWindow   *window);
 static GtkKeyHash *gtk_window_get_key_hash        (GtkWindow   *window);
@@ -2901,6 +2902,8 @@ gtk_window_set_type_hint (GtkWindow           *window,
 
   priv->reset_type_hint = TRUE;
   priv->gdk_type_hint = hint;
+
+  update_window_buttons (window);
 }
 
 /**
@@ -3414,6 +3417,9 @@ gtk_window_set_decorated (GtkWindow *window,
                                     0);
     }
 
+  update_window_buttons (window);
+  gtk_widget_queue_resize (GTK_WIDGET (window));
+
   g_object_notify (G_OBJECT (window), "decorated");
 }
 
@@ -3481,6 +3487,8 @@ gtk_window_set_deletable (GtkWindow *window,
                                  GDK_FUNC_ALL | GDK_FUNC_CLOSE);
     }
 
+  update_window_buttons (window);
+
   g_object_notify (G_OBJECT (window), "deletable");  
 }
 
@@ -4855,6 +4863,52 @@ get_default_title (void)
 }
 
 static void
+update_window_buttons (GtkWindow *window)
+{
+  GtkWindowPrivate *priv = window->priv;
+
+  if (priv->client_decorated)
+    {
+      if (priv->title_box != NULL)
+        gtk_widget_show (priv->title_box);
+
+      if (priv->title_min_button != NULL)
+        {
+          if (priv->gdk_type_hint == GDK_WINDOW_TYPE_HINT_NORMAL)
+            gtk_widget_show (priv->title_min_button);
+          else
+            gtk_widget_hide (priv->title_min_button);
+        }
+
+      if (priv->title_max_button != NULL)
+        {
+          if (priv->resizable &&
+              priv->gdk_type_hint == GDK_WINDOW_TYPE_HINT_NORMAL)
+            gtk_widget_show (priv->title_max_button);
+          else
+            gtk_widget_hide (priv->title_max_button);
+        }
+
+     if (priv->title_close_button != NULL)
+        {
+          if (priv->deletable &&
+              priv->gdk_type_hint == GDK_WINDOW_TYPE_HINT_NORMAL)
+            gtk_widget_show_all (priv->title_close_button);
+          else
+            gtk_widget_hide (priv->title_close_button);
+        }
+
+      if (priv->title_label != NULL)
+        gtk_widget_show (priv->title_label);
+    }
+  else
+    {
+      if (priv->title_box != NULL)
+        gtk_widget_hide (priv->title_box);
+    }
+}
+
+static void
 create_decoration (GtkWidget *widget)
 {
   GtkWindow *window = GTK_WINDOW (widget);
@@ -4926,6 +4980,8 @@ create_decoration (GtkWidget *widget)
                     G_CALLBACK (gtk_window_title_close_clicked), window);
 
   gtk_widget_show_all (priv->title_box);
+
+  update_window_buttons (window);
 }
 
 static void
@@ -5933,6 +5989,12 @@ gtk_window_state_event (GtkWidget           *widget,
         gtk_widget_set_visible (priv->title_box, !priv->fullscreen);
     }
 
+  if (event->changed_mask & (GDK_WINDOW_STATE_FULLSCREEN | GDK_WINDOW_STATE_MAXIMIZED))
+    {
+      update_window_buttons (window);
+      gtk_widget_queue_draw (GTK_WIDGET (window));
+    }
+
   return FALSE;
 }
 
@@ -8735,6 +8797,7 @@ gtk_window_set_resizable (GtkWindow *window,
       priv->resizable = resizable;
 
       update_grip_visibility (window);
+      update_window_buttons (window);
 
       gtk_widget_queue_resize_no_redraw (GTK_WIDGET (window));