[gnome-shell] viewSelector: Clean up focusTrap in search results

[Florian MÃllner <fmuellner src gnome org>]

commit ea14d7414126c214a6c0257a244de21b6f8b232c
Author: Florian MÃllner <fmuellner gnome org>
Date:   Sat Mar 10 01:33:31 2012 +0100

    viewSelector: Clean up focusTrap in search results
    
    Rather than relying on implementation details of StWidget's keyboard
    navigation to "hide" the focusTrap from arrow key navigation, implement
    the desired behavior explicitly in a custom widget.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=663901

 js/ui/viewSelector.js |   23 +++++++++++++++--------
 1 files changed, 15 insertions(+), 8 deletions(-)
---
diff --git a/js/ui/viewSelector.js b/js/ui/viewSelector.js
index ae9127d..df86dc6 100644
--- a/js/ui/viewSelector.js
+++ b/js/ui/viewSelector.js
@@ -21,6 +21,19 @@ const Wanda = imports.ui.wanda;
 const WorkspacesView = imports.ui.workspacesView;
 
 
+const FocusTrap = new Lang.Class({
+    Name: 'FocusTrap',
+    Extends: St.Widget,
+
+    vfunc_navigate_focus: function(from, direction) {
+        if (direction == Gtk.DirectionType.TAB_FORWARD ||
+            direction == Gtk.DirectionType.TAB_BACKWARD)
+            return this.parent(from, direction);
+        return false;
+    }
+});
+
+
 const ViewSelector = new Lang.Class({
     Name: 'ViewSelector',
 
@@ -94,17 +107,11 @@ const ViewSelector = new Lang.Class({
 
         // Since the entry isn't inside the results container we install this
         // dummy widget as the last results container child so that we can
-        // include the entry in the keynav tab path...
-        this._focusTrap = new St.Bin({ can_focus: true });
+        // include the entry in the keynav tab path
+        this._focusTrap = new FocusTrap({ can_focus: true });
         this._focusTrap.connect('key-focus-in', Lang.bind(this, function() {
             this._entry.grab_key_focus();
         }));
-        // ... but make it unfocusable using arrow keys keynav by making its
-        // bounding box always contain the possible focus source's bounding
-        // box since StWidget's keynav logic won't ever select it as a target
-        // in that case.
-        this._focusTrap.add_constraint(new Clutter.BindConstraint({ source: this._searchResults.actor,
-                                                                    coordinate: Clutter.BindCoordinate.ALL }));
         this._searchResults.actor.add_actor(this._focusTrap);
 
         global.focus_manager.add_group(this._searchResults.actor);