Adding two experiment flags to definie the condition to include views in

assist structure (AS).

Flag 1: Add AutofillType != NONE views into AS
Flag 2: Add all views into AS

Both flags are default OFF and will be used to evaluate the impact of AssistStructure generating. Currently, only "importantForAutofill" and "not important views that pass the heuristic" will be included.``
bug:272129221

Change-Id: I64890a56df40b394714506ce58be23f0967fbcae

core/java/android/view/ViewGroup.java

@@ -66,6 +66,7 @@ import android.view.animation.AnimationUtils;
 import android.view.animation.LayoutAnimationController;
 import android.view.animation.Transformation;
 import android.view.autofill.AutofillId;
+import android.view.autofill.AutofillManager;
 import android.view.autofill.Helper;
 import android.view.inspector.InspectableProperty;
 import android.view.inspector.InspectableProperty.EnumEntry;
@@ -3709,6 +3710,20 @@ public abstract class ViewGroup extends View implements ViewParent, ViewManager
         return children;
     }
 
+    private AutofillManager getAutofillManager() {
+        return mContext.getSystemService(AutofillManager.class);
+    }
+
+    private boolean shouldIncludeAllChildrenViewWithAutofillTypeNotNone(AutofillManager afm) {
+        if (afm == null) return false;
+        return afm.shouldIncludeAllChildrenViewsWithAutofillTypeNotNoneInAssistStructure();
+    }
+
+    private boolean shouldIncludeAllChildrenViews(AutofillManager afm){
+        if (afm == null) return false;
+        return afm.shouldIncludeAllChildrenViewInAssistStructure();
+    }
+
     /** @hide */
     private void populateChildrenForAutofill(ArrayList<View> list, @AutofillFlags int flags) {
         final int childrenCount = mChildrenCount;
@@ -3718,6 +3733,7 @@ public abstract class ViewGroup extends View implements ViewParent, ViewManager
         final ArrayList<View> preorderedList = buildOrderedChildList();
         final boolean customOrder = preorderedList == null
                 && isChildrenDrawingOrderEnabled();
+        final AutofillManager afm = getAutofillManager();
         for (int i = 0; i < childrenCount; i++) {
             final int childIndex = getAndVerifyPreorderedIndex(childrenCount, i, customOrder);
             final View child = (preorderedList == null)
@@ -3725,7 +3741,10 @@ public abstract class ViewGroup extends View implements ViewParent, ViewManager
             if ((flags & AUTOFILL_FLAG_INCLUDE_NOT_IMPORTANT_VIEWS) != 0
                     || child.isImportantForAutofill()
                     || (child.isMatchingAutofillableHeuristics()
-                        && !child.isActivityDeniedForAutofillForUnimportantView())) {
+                        && !child.isActivityDeniedForAutofillForUnimportantView())
+                    || (shouldIncludeAllChildrenViewWithAutofillTypeNotNone(afm)
+                        && child.getAutofillType() != AUTOFILL_TYPE_NONE)
+                    || shouldIncludeAllChildrenViews(afm)){
                 list.add(child);
             } else if (child instanceof ViewGroup) {
                 ((ViewGroup) child).populateChildrenForAutofill(list, flags);

core/java/android/view/autofill/AutofillFeatureFlags.java

@@ -193,6 +193,24 @@ public class AutofillFeatureFlags {
     public static final String DEVICE_CONFIG_SHOULD_ENABLE_AUTOFILL_ON_ALL_VIEW_TYPES =
             "should_enable_autofill_on_all_view_types";
 
+    /**
+     * Whether include all autofill type not none views in assist structure
+     *
+     * @hide
+     */
+    public static final String
+        DEVICE_CONFIG_INCLUDE_ALL_AUTOFILL_TYPE_NOT_NONE_VIEWS_IN_ASSIST_STRUCTURE =
+            "include_all_autofill_type_not_none_views_in_assist_structure";
+
+    /**
+     * Whether include all views in assist structure
+     *
+     * @hide
+     */
+    public static final String
+        DEVICE_CONFIG_INCLUDE_ALL_VIEWS_IN_ASSIST_STRUCTURE =
+            "include_all_views_in_assist_structure";
+
     // END AUTOFILL FOR ALL APPS FLAGS //
 
 
@@ -398,6 +416,28 @@ public class AutofillFeatureFlags {
             DeviceConfig.NAMESPACE_AUTOFILL,
             DEVICE_CONFIG_PACKAGE_AND_ACTIVITY_ALLOWLIST_FOR_TRIGGERING_FILL_REQUEST, "");
     }
+    /**
+     * Whether include all views that have autofill type not none in assist structure.
+     *
+     * @hide
+     */
+    public static boolean shouldIncludeAllViewsAutofillTypeNotNoneInAssistStructrue() {
+        return DeviceConfig.getBoolean(
+            DeviceConfig.NAMESPACE_AUTOFILL,
+            DEVICE_CONFIG_INCLUDE_ALL_AUTOFILL_TYPE_NOT_NONE_VIEWS_IN_ASSIST_STRUCTURE, false);
+    }
+
+    /**
+     * Whether include all views in assist structure.
+     *
+     * @hide
+     */
+    public static boolean shouldIncludeAllChildrenViewInAssistStructure() {
+        return DeviceConfig.getBoolean(
+            DeviceConfig.NAMESPACE_AUTOFILL,
+            DEVICE_CONFIG_INCLUDE_ALL_VIEWS_IN_ASSIST_STRUCTURE, false);
+    }
+
 
     // START AUTOFILL PCC CLASSIFICATION FUNCTIONS
 

core/java/android/view/autofill/AutofillManager.java

@@ -707,6 +707,12 @@ public final class AutofillManager {
     // An allowed activity set read from device config
     private Set<String> mAllowedActivitySet = new ArraySet<>();
 
+    // Indicate whether should include all view with autofill type not none in assist structure
+    private boolean mShouldIncludeAllViewsWithAutofillTypeNotNoneInAssistStructure;
+
+    // Indicate whether should include all view in assist structure
+    private boolean mShouldIncludeAllChildrenViewInAssistStructure;
+
     // Indicates whether called the showAutofillDialog() method.
     private boolean mShowAutofillDialogCalled = false;
 
@@ -913,6 +919,12 @@ public final class AutofillManager {
             mAllowedActivitySet = getDeniedOrAllowedActivitySetFromString(
                     allowlistString, packageName);
         }
+
+        mShouldIncludeAllViewsWithAutofillTypeNotNoneInAssistStructure
+            = AutofillFeatureFlags.shouldIncludeAllViewsAutofillTypeNotNoneInAssistStructrue();
+
+        mShouldIncludeAllChildrenViewInAssistStructure
+            = AutofillFeatureFlags.shouldIncludeAllChildrenViewInAssistStructure();
     }
 
     /**
@@ -962,6 +974,20 @@ public final class AutofillManager {
         return listString.indexOf(packageName + ":") != -1;
     }
 
+    /**
+     * @hide
+     */
+    public boolean shouldIncludeAllChildrenViewsWithAutofillTypeNotNoneInAssistStructure()  {
+        return mShouldIncludeAllViewsWithAutofillTypeNotNoneInAssistStructure;
+    }
+
+    /**
+     * @hide
+     */
+    public boolean shouldIncludeAllChildrenViewInAssistStructure() {
+        return mShouldIncludeAllChildrenViewInAssistStructure;
+    }
+
     /**
      * Get the denied or allowed activitiy names under specified package from the list string and
      * set it in fields accordingly