Disable time and user switcher click targets when collapsed

Bug: 15125632
Change-Id: Ibdeeb47a696a574204b02b90ce6881cd78047738

packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarHeaderView.java

@@ -134,6 +134,7 @@ public class StatusBarHeaderView extends RelativeLayout implements View.OnClickL
             updateSystemIconsLayoutParams();
             updateBrightnessControllerState();
             updateZTranslation();
+            updateClickTargets();
             if (mQSPanel != null) {
                 mQSPanel.setExpanded(expanded);
             }
@@ -208,6 +209,11 @@ public class StatusBarHeaderView extends RelativeLayout implements View.OnClickL
         }
     }
 
+    private void updateClickTargets() {
+        mDateTime.setClickable(mExpanded);
+        mMultiUserSwitch.setClickable(mExpanded);
+    }
+
     private void updateZTranslation() {
 
         // If we are on the Keyguard, we need to set our z position to zero, so we don't get