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Commit bcbf8231 authored by Taran Singh's avatar Taran Singh
Browse files

TestApi for easy HandwritingGesture serial/deserialization 

Introduce TestApi for easier serialization and deserialization of
HandwritingGesture.

Bug: 217957587
Test: atest CtsInputMethodTestCases

Change-Id: I37b3c24bb427ca22b33e14aa2c40b21821cab4e4
parent 9513eb2d

core/api/test-current.txt

+2 −0
Original line number Diff line number Diff line
@@ -3321,7 +3321,9 @@ package android.view.displayhash { 
package android.view.inputmethod {



  public abstract class HandwritingGesture {

    method @NonNull public static android.view.inputmethod.HandwritingGesture fromByteArray(@NonNull byte[]);

    method public final int getGestureType();

    method @NonNull public final byte[] toByteArray();

    field public static final int GESTURE_TYPE_DELETE = 4; // 0x4

    field public static final int GESTURE_TYPE_DELETE_RANGE = 64; // 0x40

    field public static final int GESTURE_TYPE_INSERT = 2; // 0x2

core/java/android/view/inputmethod/HandwritingGesture.java

+55 −0
Original line number Diff line number Diff line
@@ -17,10 +17,13 @@ 
package android.view.inputmethod;



import android.annotation.IntDef;

import android.annotation.NonNull;

import android.annotation.Nullable;

import android.annotation.TestApi;

import android.graphics.RectF;

import android.inputmethodservice.InputMethodService;

import android.os.Parcel;

import android.os.Parcelable;

import android.view.MotionEvent;



import java.lang.annotation.Retention;
@@ -198,4 +201,56 @@ public abstract class HandwritingGesture { 
    public final String getFallbackText() {

        return mFallbackText;

    }



    /**

     * Dump data into a byte array so that you can pass the data across process boundary.

     *

     * @return byte array data.

     * @see #fromByteArray(byte[])

     * @hide

     */

    @TestApi

    @NonNull

    public final byte[] toByteArray() {

        if (!(this instanceof Parcelable)) {

            throw new UnsupportedOperationException(getClass() + " is not Parcelable");

        }

        final Parcelable self = (Parcelable) this;

        if ((self.describeContents() & Parcelable.CONTENTS_FILE_DESCRIPTOR) != 0) {

            throw new UnsupportedOperationException("Gesture that contains FD is not supported");

        }

        Parcel parcel = null;

        try {

            parcel = Parcel.obtain();

            ParcelableHandwritingGesture.of(this).writeToParcel(parcel, 0);

            return parcel.marshall();

        } finally {

            if (parcel != null) {

                parcel.recycle();

            }

        }

    }



    /**

     * Create a new instance from byte array obtained from {@link #toByteArray()}.

     *

     * @param buffer byte array obtained from {@link #toByteArray()}

     * @return A new instance of {@link HandwritingGesture} subclass.

     * @hide

     */

    @TestApi

    @NonNull

    public static HandwritingGesture fromByteArray(@NonNull byte[] buffer) {

        Parcel parcel = null;

        try {

            parcel = Parcel.obtain();

            parcel.unmarshall(buffer, 0, buffer.length);

            parcel.setDataPosition(0);

            return ParcelableHandwritingGesture.CREATOR.createFromParcel(parcel).get();

        } finally {

            if (parcel != null) {

                parcel.recycle();

            }

        }

    }

}