Fix customizer state

QSFragment uses QSCustomizer#isCustomizing to determine what to show.
isCustomizing() = mCustomizing || mOpening.

Before this CL, if the customizer was hidden before it was fully opened,
it would thing it was still opening and QS would not be updated
correctly.

Test: manual
Fixes: 160509272
Change-Id: Iec9c896621502a1825f717f733b24bde2fe22509

packages/SystemUI/src/com/android/systemui/qs/QSDetailClipper.java

@@ -104,4 +104,13 @@ public class QSDetailClipper {
     public void showBackground() {
         mBackground.showSecondLayer();
     }
+
+    /**
+     * Cancels the animator if it's running.
+     */
+    public void cancelAnimator() {
+        if (mAnimator != null) {
+            mAnimator.cancel();
+        }
+    }
 }

packages/SystemUI/src/com/android/systemui/qs/customize/QSCustomizer.java

@@ -208,6 +208,7 @@ public class QSCustomizer extends LinearLayout implements OnMenuItemClickListene
     public void showImmediately() {
         if (!isShown) {
             setVisibility(VISIBLE);
+            mClipper.cancelAnimator();
             mClipper.showBackground();
             isShown = true;
             setTileSpecs();
@@ -230,6 +231,10 @@ public class QSCustomizer extends LinearLayout implements OnMenuItemClickListene
             mUiEventLogger.log(QSEditEvent.QS_EDIT_CLOSED);
             isShown = false;
             mToolbar.dismissPopupMenus();
+            mClipper.cancelAnimator();
+            // Make sure we're not opening (because we're closing). Nobody can think we are
+            // customizing after the next two lines.
+            mOpening = false;
             setCustomizing(false);
             save();
             if (animate) {