Get rid of custom negaitve save button label

Removed the ability for an autofill provider to set
a custom string for the negative button. Also make
the old hidden APIs non-abstract to avoid runime
crashes for unimplemented methods.

Test: CtsAutoFillServiceTestCases pass

bug:37649790

Change-Id: If776d26de48382eeb064bdead5d4d5fdb0ff2e7e
diff --git a/api/current.txt b/api/current.txt
index 58d617a..0491fb0 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -37118,6 +37118,8 @@
     method public void writeToParcel(android.os.Parcel, int);
     field public static final android.os.Parcelable.Creator<android.service.autofill.SaveInfo> CREATOR;
     field public static final int FLAG_SAVE_ON_ALL_VIEWS_INVISIBLE = 1; // 0x1
+    field public static final int NEGATIVE_BUTTON_STYLE_CANCEL = 0; // 0x0
+    field public static final int NEGATIVE_BUTTON_STYLE_REJECT = 1; // 0x1
     field public static final int SAVE_DATA_TYPE_ADDRESS = 2; // 0x2
     field public static final int SAVE_DATA_TYPE_CREDIT_CARD = 4; // 0x4
     field public static final int SAVE_DATA_TYPE_EMAIL_ADDRESS = 16; // 0x10
@@ -37131,7 +37133,7 @@
     method public android.service.autofill.SaveInfo build();
     method public android.service.autofill.SaveInfo.Builder setDescription(java.lang.CharSequence);
     method public android.service.autofill.SaveInfo.Builder setFlags(int);
-    method public android.service.autofill.SaveInfo.Builder setNegativeAction(java.lang.CharSequence, android.content.IntentSender);
+    method public android.service.autofill.SaveInfo.Builder setNegativeAction(int, android.content.IntentSender);
     method public android.service.autofill.SaveInfo.Builder setOptionalIds(android.view.autofill.AutofillId[]);
   }
 
diff --git a/api/system-current.txt b/api/system-current.txt
index 3723e7e..c14ece6 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -40233,6 +40233,8 @@
     method public void writeToParcel(android.os.Parcel, int);
     field public static final android.os.Parcelable.Creator<android.service.autofill.SaveInfo> CREATOR;
     field public static final int FLAG_SAVE_ON_ALL_VIEWS_INVISIBLE = 1; // 0x1
+    field public static final int NEGATIVE_BUTTON_STYLE_CANCEL = 0; // 0x0
+    field public static final int NEGATIVE_BUTTON_STYLE_REJECT = 1; // 0x1
     field public static final int SAVE_DATA_TYPE_ADDRESS = 2; // 0x2
     field public static final int SAVE_DATA_TYPE_CREDIT_CARD = 4; // 0x4
     field public static final int SAVE_DATA_TYPE_EMAIL_ADDRESS = 16; // 0x10
@@ -40246,7 +40248,7 @@
     method public android.service.autofill.SaveInfo build();
     method public android.service.autofill.SaveInfo.Builder setDescription(java.lang.CharSequence);
     method public android.service.autofill.SaveInfo.Builder setFlags(int);
-    method public android.service.autofill.SaveInfo.Builder setNegativeAction(java.lang.CharSequence, android.content.IntentSender);
+    method public android.service.autofill.SaveInfo.Builder setNegativeAction(int, android.content.IntentSender);
     method public android.service.autofill.SaveInfo.Builder setOptionalIds(android.view.autofill.AutofillId[]);
   }
 
diff --git a/api/test-current.txt b/api/test-current.txt
index 9f7441c..2ed5644 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -37272,6 +37272,8 @@
     method public void writeToParcel(android.os.Parcel, int);
     field public static final android.os.Parcelable.Creator<android.service.autofill.SaveInfo> CREATOR;
     field public static final int FLAG_SAVE_ON_ALL_VIEWS_INVISIBLE = 1; // 0x1
+    field public static final int NEGATIVE_BUTTON_STYLE_CANCEL = 0; // 0x0
+    field public static final int NEGATIVE_BUTTON_STYLE_REJECT = 1; // 0x1
     field public static final int SAVE_DATA_TYPE_ADDRESS = 2; // 0x2
     field public static final int SAVE_DATA_TYPE_CREDIT_CARD = 4; // 0x4
     field public static final int SAVE_DATA_TYPE_EMAIL_ADDRESS = 16; // 0x10
@@ -37285,7 +37287,7 @@
     method public android.service.autofill.SaveInfo build();
     method public android.service.autofill.SaveInfo.Builder setDescription(java.lang.CharSequence);
     method public android.service.autofill.SaveInfo.Builder setFlags(int);
-    method public android.service.autofill.SaveInfo.Builder setNegativeAction(java.lang.CharSequence, android.content.IntentSender);
+    method public android.service.autofill.SaveInfo.Builder setNegativeAction(int, android.content.IntentSender);
     method public android.service.autofill.SaveInfo.Builder setOptionalIds(android.view.autofill.AutofillId[]);
   }
 
diff --git a/core/java/android/service/autofill/AutofillService.java b/core/java/android/service/autofill/AutofillService.java
index edb9098..32b078f 100644
--- a/core/java/android/service/autofill/AutofillService.java
+++ b/core/java/android/service/autofill/AutofillService.java
@@ -223,9 +223,11 @@
      * @hide
      */
     @Deprecated
-    public abstract void onFillRequest(@NonNull AssistStructure structure, @Nullable Bundle data,
+    public void onFillRequest(@NonNull AssistStructure structure, @Nullable Bundle data,
             int flags, @NonNull CancellationSignal cancellationSignal,
-            @NonNull FillCallback callback);
+            @NonNull FillCallback callback) {
+
+    }
 
     /**
      * Called when user requests service to save the fields of an {@link Activity}.
@@ -260,8 +262,10 @@
      * @hide
      */
     @Deprecated
-    public abstract void onSaveRequest(@NonNull AssistStructure structure, @Nullable Bundle data,
-            @NonNull SaveCallback callback);
+    public void onSaveRequest(@NonNull AssistStructure structure, @Nullable Bundle data,
+            @NonNull SaveCallback callback) {
+
+    }
 
     /**
      * Called when the Android system disconnects from the service.
diff --git a/core/java/android/service/autofill/SaveInfo.java b/core/java/android/service/autofill/SaveInfo.java
index 3a1529f..94e5e3e 100644
--- a/core/java/android/service/autofill/SaveInfo.java
+++ b/core/java/android/service/autofill/SaveInfo.java
@@ -139,6 +139,33 @@
      */
     public static final int SAVE_DATA_TYPE_EMAIL_ADDRESS = 0x10;
 
+    /**
+     * Style for the negative button of the save UI to cancel the
+     * save operation. In this case, the user tapping the negative
+     * button signals that they would prefer to not save the filled
+     * content.
+     */
+    public static final int NEGATIVE_BUTTON_STYLE_CANCEL = 0;
+
+    /**
+     * Style for the negative button of the save UI to reject the
+     * save operation. This could be useful if the user needs to
+     * opt-in your service and the save prompt is an advertisement
+     * of the potential value you can add to the user. In this
+     * case, the user tapping the negative button sends a strong
+     * signal that the feature may not be useful and you may
+     * consider some backoff strategy.
+     */
+    public static final int NEGATIVE_BUTTON_STYLE_REJECT = 1;
+
+    /** @hide */
+    @IntDef(
+        value = {
+                NEGATIVE_BUTTON_STYLE_CANCEL,
+                NEGATIVE_BUTTON_STYLE_REJECT})
+    @Retention(RetentionPolicy.SOURCE)
+    @interface NegativeButtonStyle{}
+
     /** @hide */
     @IntDef(
        flag = true,
@@ -166,7 +193,7 @@
     @interface SaveInfoFlags{}
 
     private final @SaveDataType int mType;
-    private final CharSequence mNegativeActionTitle;
+    private final @NegativeButtonStyle int mNegativeButtonStyle;
     private final IntentSender mNegativeActionListener;
     private final AutofillId[] mRequiredIds;
     private final AutofillId[] mOptionalIds;
@@ -175,7 +202,7 @@
 
     private SaveInfo(Builder builder) {
         mType = builder.mType;
-        mNegativeActionTitle = builder.mNegativeActionTitle;
+        mNegativeButtonStyle = builder.mNegativeButtonStyle;
         mNegativeActionListener = builder.mNegativeActionListener;
         mRequiredIds = builder.mRequiredIds;
         mOptionalIds = builder.mOptionalIds;
@@ -184,8 +211,8 @@
     }
 
     /** @hide */
-    public @Nullable CharSequence getNegativeActionTitle() {
-        return mNegativeActionTitle;
+    public @NegativeButtonStyle int getNegativeActionStyle() {
+        return mNegativeButtonStyle;
     }
 
     /** @hide */
@@ -224,7 +251,7 @@
     public static final class Builder {
 
         private final @SaveDataType int mType;
-        private CharSequence mNegativeActionTitle;
+        private @NegativeButtonStyle int mNegativeButtonStyle = NEGATIVE_BUTTON_STYLE_CANCEL;
         private IntentSender mNegativeActionListener;
         private final AutofillId[] mRequiredIds;
         private AutofillId[] mOptionalIds;
@@ -298,38 +325,42 @@
             return this;
         }
 
-        /**
-         * Sets the title and listener for the negative save action.
-         *
-         * <p>This allows a fill-provider to customize the text and be
-         * notified when the user selects the negative action in the save
-         * UI. Note that selecting the negative action regardless of its text
-         * and listener being customized would dismiss the save UI and if a
-         * custom listener intent is provided then this intent will be
-         * started.</p>
-         *
-         * <p>This customization could be useful for providing additional
-         * semantics to the negative action. For example, a fill-provider
-         * can use this mechanism to add a "Disable" function or a "More info"
-         * function, etc. Note that the save action is exclusively controlled
-         * by the platform to ensure user consent is collected to release
-         * data from the filled app to the fill-provider.</p>
-         *
-         * @param title The action title.
-         * @param listener The action listener.
-         * @return This builder.
-         *
-         * @throws IllegalArgumentException If the title and the listener
-         *     are not both either null or non-null.
-         */
+        /** @hide */
+        // TODO (b/37563972): Remove when callers migrate
         public @NonNull Builder setNegativeAction(@Nullable CharSequence title,
                 @Nullable IntentSender listener) {
             throwIfDestroyed();
-            if (title == null ^ listener == null) {
-                throw new IllegalArgumentException("title and listener"
-                        + " must be both non-null or null");
+            setNegativeAction(NEGATIVE_BUTTON_STYLE_CANCEL, listener);
+            return this;
+        }
+
+        /**
+         * Sets the style and listener for the negative save action.
+         *
+         * <p>This allows a fill-provider to customize the style and be
+         * notified when the user selects the negative action in the save
+         * UI. Note that selecting the negative action regardless of its style
+         * and listener being customized would dismiss the save UI and if a
+         * custom listener intent is provided then this intent will be
+         * started. The default style is {@link #NEGATIVE_BUTTON_STYLE_CANCEL}</p>
+         *
+         * @param style The action style.
+         * @param listener The action listener.
+         * @return This builder.
+         *
+         * @see #NEGATIVE_BUTTON_STYLE_CANCEL
+         * @see #NEGATIVE_BUTTON_STYLE_REJECT
+         *
+         * @throws IllegalArgumentException If the style is invalid
+         */
+        public @NonNull Builder setNegativeAction(@NegativeButtonStyle int style,
+                @Nullable IntentSender listener) {
+            throwIfDestroyed();
+            if (style != NEGATIVE_BUTTON_STYLE_CANCEL
+                    && style != NEGATIVE_BUTTON_STYLE_REJECT) {
+                throw new IllegalArgumentException("Invalid style: " + style);
             }
-            mNegativeActionTitle = title;
+            mNegativeButtonStyle = style;
             mNegativeActionListener = listener;
             return this;
         }
@@ -363,6 +394,8 @@
                 .append(", requiredIds=").append(Arrays.toString(mRequiredIds))
                 .append(", optionalIds=").append(Arrays.toString(mOptionalIds))
                 .append(", description=").append(mDescription)
+                .append(DebugUtils.flagsToString(SaveInfo.class, "NEGATIVE_BUTTON_STYLE_",
+                        mNegativeButtonStyle))
                 .append(", mFlags=").append(mFlags)
                 .append("]").toString();
     }
@@ -380,7 +413,7 @@
     public void writeToParcel(Parcel parcel, int flags) {
         parcel.writeInt(mType);
         parcel.writeParcelableArray(mRequiredIds, flags);
-        parcel.writeCharSequence(mNegativeActionTitle);
+        parcel.writeInt(mNegativeButtonStyle);
         parcel.writeParcelable(mNegativeActionListener, flags);
         parcel.writeParcelableArray(mOptionalIds, flags);
         parcel.writeCharSequence(mDescription);
@@ -395,7 +428,7 @@
             // using specially crafted parcels.
             final Builder builder = new Builder(parcel.readInt(),
                     parcel.readParcelableArray(null, AutofillId.class));
-            builder.setNegativeAction(parcel.readCharSequence(), parcel.readParcelable(null));
+            builder.setNegativeAction(parcel.readInt(), parcel.readParcelable(null));
             builder.setOptionalIds(parcel.readParcelableArray(null, AutofillId.class));
             builder.setDescription(parcel.readCharSequence());
             builder.setFlags(parcel.readInt());
diff --git a/services/autofill/java/com/android/server/autofill/ui/SaveUi.java b/services/autofill/java/com/android/server/autofill/ui/SaveUi.java
index 9bba1ad..cbaaef7 100644
--- a/services/autofill/java/com/android/server/autofill/ui/SaveUi.java
+++ b/services/autofill/java/com/android/server/autofill/ui/SaveUi.java
@@ -159,19 +159,20 @@
         }
 
         final TextView noButton = view.findViewById(R.id.autofill_save_no);
-        if (info.getNegativeActionTitle() != null) {
-            noButton.setText(info.getNegativeActionTitle());
-            noButton.setOnClickListener((v) -> mListener.onCancel(
-                    info.getNegativeActionListener()));
+        if (info.getNegativeActionStyle() == SaveInfo.NEGATIVE_BUTTON_STYLE_REJECT) {
+            noButton.setText(R.string.save_password_notnow);
         } else {
-            noButton.setOnClickListener((v) -> mListener.onCancel(null));
+            noButton.setText(R.string.autofill_save_no);
         }
+        noButton.setOnClickListener((v) -> mListener.onCancel(
+                info.getNegativeActionListener()));
 
         final View yesButton = view.findViewById(R.id.autofill_save_yes);
         yesButton.setOnClickListener((v) -> mListener.onSave());
 
         final View closeButton = view.findViewById(R.id.autofill_save_close);
-        closeButton.setOnClickListener((v) -> mListener.onCancel(null));
+        closeButton.setOnClickListener((v) -> mListener.onCancel(
+                info.getNegativeActionListener()));
 
         mDialog = new Dialog(context, R.style.Theme_Material_Panel);
         mDialog.setContentView(view);