[gnome-panel] toplevel: add position css class

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 601541869ba99fdcc1c8e97c226398c4376118da
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Sat Jan 20 23:06:10 2018 +0200

    toplevel: add position css class

 gnome-panel/panel-toplevel.c |   56 ++++++++++++++++++++++++++++++++---------
 1 files changed, 43 insertions(+), 13 deletions(-)
---
diff --git a/gnome-panel/panel-toplevel.c b/gnome-panel/panel-toplevel.c
index 83710c1..9d3b59c 100644
--- a/gnome-panel/panel-toplevel.c
+++ b/gnome-panel/panel-toplevel.c
@@ -255,6 +255,46 @@ static void panel_toplevel_set_monitor_internal (PanelToplevel *toplevel,
                                                 int            monitor,
                                                 gboolean       force_resize);
 
+static void
+update_style_classes (PanelToplevel *toplevel)
+{
+       GtkStyleContext *context;
+
+       context = gtk_widget_get_style_context (GTK_WIDGET (toplevel));
+
+       gtk_style_context_remove_class (context, GTK_STYLE_CLASS_HORIZONTAL);
+       gtk_style_context_remove_class (context, GTK_STYLE_CLASS_VERTICAL);
+       gtk_style_context_remove_class (context, GTK_STYLE_CLASS_RIGHT);
+       gtk_style_context_remove_class (context, GTK_STYLE_CLASS_LEFT);
+       gtk_style_context_remove_class (context, GTK_STYLE_CLASS_TOP);
+       gtk_style_context_remove_class (context, GTK_STYLE_CLASS_BOTTOM);
+
+       switch (toplevel->priv->orientation) {
+       case PANEL_ORIENTATION_TOP:
+               gtk_style_context_add_class (context, GTK_STYLE_CLASS_HORIZONTAL);
+               gtk_style_context_add_class (context, GTK_STYLE_CLASS_TOP);
+               break;
+
+       case PANEL_ORIENTATION_LEFT:
+               gtk_style_context_add_class (context, GTK_STYLE_CLASS_VERTICAL);
+               gtk_style_context_add_class (context, GTK_STYLE_CLASS_LEFT);
+               break;
+
+       case PANEL_ORIENTATION_BOTTOM:
+               gtk_style_context_add_class (context, GTK_STYLE_CLASS_HORIZONTAL);
+               gtk_style_context_add_class (context, GTK_STYLE_CLASS_BOTTOM);
+               break;
+
+       case PANEL_ORIENTATION_RIGHT:
+               gtk_style_context_add_class (context, GTK_STYLE_CLASS_VERTICAL);
+               gtk_style_context_add_class (context, GTK_STYLE_CLASS_RIGHT);
+               break;
+
+       default:
+               g_assert_not_reached ();
+               break;
+       }
+}
 
 GSList *
 panel_toplevel_list_toplevels (void)
@@ -4024,7 +4064,6 @@ static void
 panel_toplevel_init (PanelToplevel *toplevel)
 {
        GtkWidget *widget;
-       GtkStyleContext *context;
 
        toplevel->priv = PANEL_TOPLEVEL_GET_PRIVATE (toplevel);
 
@@ -4115,7 +4154,7 @@ panel_toplevel_init (PanelToplevel *toplevel)
        panel_toplevel_setup_widgets (toplevel);
        panel_toplevel_update_description (toplevel);
        panel_toplevel_update_gtk_settings (toplevel);
-       
+
        toplevel_list = g_slist_prepend (toplevel_list, toplevel);
 
        /* Prevent the window from being deleted via Alt+F4 by accident.  This
@@ -4126,8 +4165,7 @@ panel_toplevel_init (PanelToplevel *toplevel)
                          G_CALLBACK (gtk_true),
                          NULL);
 
-       context = gtk_widget_get_style_context (GTK_WIDGET (toplevel));
-       gtk_style_context_add_class (context, GTK_STYLE_CLASS_HORIZONTAL);
+       update_style_classes (toplevel);
 }
 
 PanelWidget *
@@ -4466,7 +4504,6 @@ panel_toplevel_set_orientation (PanelToplevel    *toplevel,
        gboolean   rotate;
        int        monitor_width;
        int        monitor_height;
-       GtkStyleContext *context;
 
        g_return_if_fail (PANEL_IS_TOPLEVEL (toplevel));
 
@@ -4534,15 +4571,8 @@ panel_toplevel_set_orientation (PanelToplevel    *toplevel,
        }
 
        toplevel->priv->orientation = orientation;
+       update_style_classes (toplevel);
 
-       context = gtk_widget_get_style_context (GTK_WIDGET (toplevel));
-       if (orientation & PANEL_HORIZONTAL_MASK) {
-               gtk_style_context_add_class (context, GTK_STYLE_CLASS_HORIZONTAL);
-               gtk_style_context_remove_class (context, GTK_STYLE_CLASS_VERTICAL);
-       } else {
-               gtk_style_context_add_class (context, GTK_STYLE_CLASS_VERTICAL);
-               gtk_style_context_remove_class (context, GTK_STYLE_CLASS_HORIZONTAL);
-       }
        gtk_widget_reset_style (GTK_WIDGET (toplevel));
 
        panel_toplevel_update_hide_buttons (toplevel);