Allow to finish session when all views are gone

An service can option to finish the session once all views that it
declared as important. Views that are important are all autofillable
views of any partition and the saveable fields of the last partition.

Test: CtsAutoFillServiceTestCases
Fixes: 35708237
Change-Id: I0ccade8ebb427e5d8928697ef0007c75d3f83df0

1 files changed, 55 insertions, 5 deletions

diff --git a/core/java/android/app/Activity.java b/core/java/android/app/Activity.java
index b36a1600bae5..169dcb01c90a 100644
--- a/core/java/android/app/Activity.java
+++ b/core/java/android/app/Activity.java
@@ -16,21 +16,16 @@
 
 package android.app;
 
-import android.metrics.LogMaker;
 import android.graphics.Rect;
 import android.os.SystemClock;
 import android.view.ViewRootImpl.ActivityConfigCallback;
-import android.view.autofill.AutofillId;
 import android.view.autofill.AutofillManager;
 import android.view.autofill.AutofillPopupWindow;
-import android.view.autofill.AutofillValue;
 import android.view.autofill.IAutofillWindowPresenter;
 import com.android.internal.annotations.GuardedBy;
 import com.android.internal.app.IVoiceInteractor;
 import com.android.internal.app.ToolbarActionBar;
 import com.android.internal.app.WindowDecorActionBar;
-import com.android.internal.logging.MetricsLogger;
-import com.android.internal.logging.nano.MetricsProto;
 import com.android.internal.policy.PhoneWindow;
 
 import android.annotation.CallSuper;
@@ -1234,6 +1229,13 @@ public class Activity extends ContextThemeWrapper
         mFragments.doLoaderStart();
 
         getApplication().dispatchActivityStarted(this);
+
+        if (mAutoFillResetNeeded) {
+            AutofillManager afm = getAutofillManager();
+            if (afm != null) {
+                afm.onVisibleForAutofill();
+            }
+        }
     }
 
     /**
@@ -7407,6 +7409,54 @@ public class Activity extends ContextThemeWrapper
         return true;
     }
 
+    /** @hide */
+    @Override
+    public boolean getViewVisibility(int viewId) {
+        Window window = getWindow();
+        if (window == null) {
+            Log.i(TAG, "no window");
+            return false;
+        }
+
+        View decorView = window.peekDecorView();
+        if (decorView == null) {
+            Log.i(TAG, "no decorView");
+            return false;
+        }
+
+        View view = decorView.findViewByAccessibilityIdTraversal(viewId);
+        if (view == null) {
+            Log.i(TAG, "cannot find view");
+            return false;
+        }
+
+        // Check if the view is visible by checking all parents
+        while (view != null) {
+            if (view == decorView) {
+                break;
+            }
+
+            if (view.getVisibility() != View.VISIBLE) {
+                Log.i(TAG, view + " is not visible");
+                return false;
+            }
+
+            if (view.getParent() instanceof View) {
+                view = (View) view.getParent();
+            } else {
+                break;
+            }
+        }
+
+        return true;
+    }
+
+    /** @hide */
+    @Override
+    public boolean isVisibleForAutofill() {
+        return !mStopped;
+    }
+
     /**
      * If set to true, this indicates to the system that it should never take a
      * screenshot of the activity to be used as a representation while it is not in a started state.