YAMAFFR - Yet Another Major AutoFill Framework Refactoring

- Explicitly split View methods into Assist and AutoFill methods, rather
  than use an overloaded method that takes flags.
- Simarly, renamed ASSIST_FLAG_SANITIZED_TEXT and
  ASSIST_FLAG_NON_SANITIZED_TEXT flags to
  AUTO_FILL_FLAG_TYPE_FILL and AUTO_FILL_FLAG_TYPE_SAVE respectively.
- Created a AutoFillUI class to host the auto-fill bar and other UI
  affordances.
- Moved the temporary notifications to AutoFillUI (eventually that
  class will host the real UI).
- Moved FillData to android.app.view.autofill package.
- Split IAutoFillCallback in 2 (IAutoFillAppCallback and
  IAutoFillServerCallback, residing at the app and system_server
  respectively), so service cannot fill the app directly (which lets
  the framework control the UI).
- Moved assist's IResultReceiver to AutoFillServiceImpl so
  system_server can act as a mediator between the AutoFillService
  implementation and the app being auto-filled.
- Replaced FillData and FillableInputFields by a bunch of new objects:
  - FillResponse contains a group of Datasets, each representing
  different values
    that can be used to auto-fill an activity (for example, different
    user accounts), optional id of fields the service is interested
    to save, and an optional bundle for service-side extras.
  - Dataset contains a name, Fields, and an optional bundle for
    service-side extras.
  - Fields contain an AutoFillId (parcelable) and a value (Bundle)
- Changed the temporary notifications to emulate the new workflow:
  - Initial notification requests the auto-fill data but do not
    auto-fill.
  - Once service calls back, a new notification is shown with the
    results.
  - Then if the user selects a dataset, the activity is auto-filled
    with it.
  - It also shows a notification to emulate what can be saved.
- Created an VirtualViewDelegate for views that uses a virtual
  hierarchy for assist data.
- Added new methods on ViewStructure to add children with virtual ids.
- Added 2 methods on View to support auto-fill:
  - autoFill(Bundle) to auto-fill the view.
  - getAutoFillType() to return how the view can be auto-filled.
- AutoFillType defines the input fields that support auto-fill:
  - Text fields (like EditText)
  - Toggle fields (like CheckBox)
  - Lists (like RadioGroup)
- AutoFillType can also have a sub-type representing its semantic (for
  now only text fields have it, and it's the same as getInputType()).
- etc :-)

Bug: 31001899
Test: manual verification
Change-Id: I2dd2fdedcb3ecd1e4403f9c32fa644cb914e186f

1 files changed, 23 insertions, 2 deletions

diff --git a/core/java/android/widget/CompoundButton.java b/core/java/android/widget/CompoundButton.java
index 3213a34e28f1..718070d0d49a 100644
--- a/core/java/android/widget/CompoundButton.java
+++ b/core/java/android/widget/CompoundButton.java
@@ -34,6 +34,8 @@ import android.view.ViewDebug;
 import android.view.ViewHierarchyEncoder;
 import android.view.accessibility.AccessibilityEvent;
 import android.view.accessibility.AccessibilityNodeInfo;
+import android.view.autofill.AutoFillType;
+import android.view.autofill.AutoFillValue;
 
 import com.android.internal.R;
 
@@ -52,6 +54,7 @@ import com.android.internal.R;
  * </p>
  */
 public abstract class CompoundButton extends Button implements Checkable {
+
     private boolean mChecked;
     private boolean mBroadcasting;
 
@@ -111,6 +114,7 @@ public abstract class CompoundButton extends Button implements Checkable {
         applyButtonTint();
     }
 
+    @Override
     public void toggle() {
         setChecked(!mChecked);
     }
@@ -130,6 +134,7 @@ public abstract class CompoundButton extends Button implements Checkable {
     }
 
     @ViewDebug.ExportedProperty
+    @Override
     public boolean isChecked() {
         return mChecked;
     }
@@ -139,6 +144,7 @@ public abstract class CompoundButton extends Button implements Checkable {
      *
      * @param checked true to check the button, false to uncheck it
      */
+    @Override
     public void setChecked(boolean checked) {
         if (mChecked != checked) {
             mChecked = checked;
@@ -514,12 +520,15 @@ public abstract class CompoundButton extends Button implements Checkable {
                     + " checked=" + checked + "}";
         }
 
-        public static final Parcelable.Creator<SavedState> CREATOR
-                = new Parcelable.Creator<SavedState>() {
+        @SuppressWarnings("hiding")
+        public static final Parcelable.Creator<SavedState> CREATOR =
+                new Parcelable.Creator<SavedState>() {
+            @Override
             public SavedState createFromParcel(Parcel in) {
                 return new SavedState(in);
             }
 
+            @Override
             public SavedState[] newArray(int size) {
                 return new SavedState[size];
             }
@@ -551,4 +560,16 @@ public abstract class CompoundButton extends Button implements Checkable {
         super.encodeProperties(stream);
         stream.addProperty("checked", isChecked());
     }
+
+    // TODO(b/33197203): add unit/CTS tests for auto-fill methods
+
+    @Override
+    public void autoFill(AutoFillValue value) {
+        setChecked(value.getToggleValue());
+    }
+
+    @Override
+    public AutoFillType getAutoFillType() {
+        return AutoFillType.forToggle();
+    }
 }