[gnome-shell/gnome-3-30] appFolder: Don't block all shortcuts

[Florian Müllner <fmuellner src gnome org>]

commit 54f8232a9339692c5307ff5220f83f27d5542622
Author: Florian Müllner <fmuellner gnome org>
Date:   Thu Oct 11 18:12:54 2018 +0000

    appFolder: Don't block all shortcuts
    
    App folder popups take a grab when opened, and as we don't pass any
    particular pushModal() parameters, all keybindings are blocked. While
    this makes sense for most keybindings that would interfere with the
    popup interaction, others like volume/brightness keys or screenshots
    can be allowed safely.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/issues/648
    
    
    (cherry picked from commit 76117fd3063bcbbc8c8a0287c1ecf351d1a22039)

 js/ui/appDisplay.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/js/ui/appDisplay.js b/js/ui/appDisplay.js
index 67b796a26..bfc6ec440 100644
--- a/js/ui/appDisplay.js
+++ b/js/ui/appDisplay.js
@@ -1462,7 +1462,9 @@ var AppFolderPopup = new Lang.Class({
         global.focus_manager.add_group(this.actor);
 
         source.actor.connect('destroy', () => { this.actor.destroy(); });
-        this._grabHelper = new GrabHelper.GrabHelper(this.actor);
+        this._grabHelper = new GrabHelper.GrabHelper(this.actor, {
+            actionMode: Shell.ActionMode.POPUP
+        });
         this._grabHelper.addActor(Main.layoutManager.overviewGroup);
         this.actor.connect('key-press-event', this._onKeyPress.bind(this));
     },