panel: Update .solid style on session mode changes

The .solid style isn't supposed to apply for modes that don't support
windows, but for this to work we have to update the style on session
mode changes.

https://bugzilla.gnome.org/show_bug.cgi?id=783202

diff --git a/js/ui/panel.js b/js/ui/panel.js
index a7d63d23c5bc86798d9121a04f6fbc082895e556..83fda0ea848395cb201afed6889a994c759bdff0 100644 (file)
--- a/js/ui/panel.js
+++ b/js/ui/panel.js
@@ -1015,6 +1015,8 @@ const Panel = new Lang.Class({
         else
             Main.messageTray.bannerAlignment = Clutter.ActorAlign.CENTER;
 
+        this._updateSolidStyle();
+
         if (this._sessionStyle)
             this._removeStyleClassName(this._sessionStyle);