[gnome-shell] screenShield: Do not take an inhibitor when disabled by lockdown

[Florian Müllner <fmuellner src gnome org>]

commit a786f0bcd2087a34694d67da157fdfea7f98ce47
Author: Florian Müllner <fmuellner gnome org>
Date:   Fri Mar 17 15:48:22 2017 +0100

    screenShield: Do not take an inhibitor when disabled by lockdown
    
    Just as with the normal lock screen settings, we shouldn't request
    a logind inhibitor when locking is disabled via lockdown settings.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=780212

 js/ui/screenShield.js |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/js/ui/screenShield.js b/js/ui/screenShield.js
index fd21fde..fd4f28c 100644
--- a/js/ui/screenShield.js
+++ b/js/ui/screenShield.js
@@ -545,6 +545,7 @@ const ScreenShield = new Lang.Class({
         this._settings.connect('changed::' + LOCK_ENABLED_KEY, Lang.bind(this, this._syncInhibitor));
 
         this._lockSettings = new Gio.Settings({ schema_id: LOCKDOWN_SCHEMA });
+        this._lockSettings.connect('changed::' + DISABLE_LOCK_KEY, Lang.bind(this, this._syncInhibitor));
 
         this._isModal = false;
         this._hasLockScreen = false;
@@ -706,8 +707,10 @@ const ScreenShield = new Lang.Class({
     },
 
     _syncInhibitor: function() {
+        let lockEnabled = this._settings.get_boolean(LOCK_ENABLED_KEY);
+        let lockLocked = this._lockSettings.get_boolean(DISABLE_LOCK_KEY);
         let inhibit = (this._loginSession && this._loginSession.Active &&
-                       !this._isActive && this._settings.get_boolean(LOCK_ENABLED_KEY));
+                       !this._isActive && lockEnabled && !lockLocked);
         if (inhibit) {
             this._loginManager.inhibit(_("GNOME needs to lock the screen"),
                                        Lang.bind(this, function(inhibitor) {