Check WindowState when looking for animation.

The method setTokenVisibilityLocked returns true when animations are
delaying the exit of an app. Previously this only checked AppToken
animations but that caused exiting WindowState animations to be
ignored.

In particular if an application both hid an AppToken and then
dismissed the AppToken, the AppToken was being removed from
mClosingTokens before the animation finished. This caused
rebuildAppWindowListLocked to lose a WindowState. Furthermore
Surfaces were not being removed when a WindowState was lost and
we were leaking Surfaces.

Fixes bug 6297563.

Change-Id: Ie75c71064518199237ec4a17d3f65e2a2dd29674

Author: Craig Mautner

services/java/com/android/server/wm/WindowManagerService.java

@@ -3974,7 +3974,6 @@ boolean setTokenVisibilityLocked(AppWindowToken wtoken, WindowManager.LayoutPara
 
         wtoken.willBeHidden = false;
         if (wtoken.hidden == visible) {
-            final int N = wtoken.allAppWindows.size();
             boolean changed = false;
             if (DEBUG_APP_TRANSITIONS) Slog.v(
                 TAG, "Changing app " + wtoken + " hidden=" + wtoken.hidden
@@ -3986,23 +3985,19 @@ boolean setTokenVisibilityLocked(AppWindowToken wtoken, WindowManager.LayoutPara
                 if (wtoken.mAppAnimator.animation == sDummyAnimation) {
                     wtoken.mAppAnimator.animation = null;
                 }
-                applyAnimationLocked(wtoken, lp, transit, visible);
-                changed = true;
-                if (wtoken.mAppAnimator.animation != null) {
+                if (applyAnimationLocked(wtoken, lp, transit, visible)) {
                     delayed = runningAppAnimation = true;
                 }
+                changed = true;
             }
 
+            final int N = wtoken.allAppWindows.size();
             for (int i=0; i<N; i++) {
                 WindowState win = wtoken.allAppWindows.get(i);
                 if (win == wtoken.startingWindow) {
                     continue;
                 }
 
-                if (win.mWinAnimator.isAnimating()) {
-                    delayed = true;
-                }
-
                 //Slog.i(TAG, "Window " + win + ": vis=" + win.isVisible());
                 //win.dump("  ");
                 if (visible) {
@@ -4055,6 +4050,12 @@ boolean setTokenVisibilityLocked(AppWindowToken wtoken, WindowManager.LayoutPara
             delayed = true;
         }
 
+        for (int i = wtoken.allAppWindows.size() - 1; i >= 0 && !delayed; i--) {
+            if (wtoken.allAppWindows.get(i).mWinAnimator.isWindowAnimating()) {
+                delayed = true;
+            }
+        }
+
         return delayed;
     }
 
@@ -7262,6 +7263,7 @@ final void rebuildAppWindowListLocked() {
                     pw.flush();
                     Slog.w(TAG, "This window was lost: " + ws);
                     Slog.w(TAG, sw.toString());
+                    ws.mWinAnimator.destroySurfaceLocked();
                 }
             }
             Slog.w(TAG, "Current app token list:");
@@ -9331,7 +9333,7 @@ void dumpWindowsLocked(FileDescriptor fd, PrintWriter pw, boolean dumpAll,
                     pw.print(" mWaitingForConfig="); pw.println(mWaitingForConfig);
             pw.print("  mRotation="); pw.print(mRotation);
                     pw.print(" mAltOrientation="); pw.println(mAltOrientation);
-            pw.print("  mLastWindowForcedOrientation"); pw.print(mLastWindowForcedOrientation);
+            pw.print("  mLastWindowForcedOrientation="); pw.print(mLastWindowForcedOrientation);
                     pw.print(" mForcedAppOrientation="); pw.println(mForcedAppOrientation);
             pw.print("  mDeferredRotationPauseCount="); pw.println(mDeferredRotationPauseCount);
             if (mAnimator.mScreenRotationAnimation != null) {
@@ -9533,4 +9535,9 @@ void debugLayoutRepeats(final String msg, int pendingLayoutChanges) {
     void bulkSetParameters(final int bulkUpdateParams) {
         mH.sendMessage(mH.obtainMessage(H.BULK_UPDATE_PARAMETERS, bulkUpdateParams, 0));
     }
+
+    static String getCaller() {
+        StackTraceElement caller = Thread.currentThread().getStackTrace()[4];
+        return caller.getClassName() + "." + caller.getMethodName() + ":" + caller.getLineNumber();
+    }
 }