[gnome-shell] ScreenShield: don't create an unlock dialog if the screen is not locked

[Giovanni Campagna <gcampagna src gnome org>]

commit 1b8580f12b4e704076388240409ca3ecdacd5288
Author: Giovanni Campagna <gcampagna src gnome org>
Date:   Sat Jun 8 18:59:20 2013 +0200

    ScreenShield: don't create an unlock dialog if the screen is not locked
    
    Creating the unlock dialog starts the GDM conversation and activates
    the fingerprint sensors, so don't do it unless necessary.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=697833

 js/ui/screenShield.js |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/js/ui/screenShield.js b/js/ui/screenShield.js
index 4776333..b5e2743 100644
--- a/js/ui/screenShield.js
+++ b/js/ui/screenShield.js
@@ -622,7 +622,8 @@ const ScreenShield = new Lang.Class({
         if (!isEnter && !(GLib.unichar_isprint(unichar) || symbol == Clutter.KEY_Escape))
             return false;
 
-        if (this._ensureUnlockDialog(true, true) &&
+        if (this._isLocked &&
+            this._ensureUnlockDialog(true, true) &&
             GLib.unichar_isgraph(unichar))
             this._dialog.addCharacter(unichar);