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      1 /*
      2  * Copyright (C) 2017 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 package android.view.autofill;
     17 
     18 import android.annotation.TestApi;
     19 import android.os.Parcel;
     20 import android.os.Parcelable;
     21 import android.view.View;
     22 
     23 /**
     24  * A unique identifier for an autofill node inside an {@link android.app.Activity}.
     25  */
     26 public final class AutofillId implements Parcelable {
     27 
     28     private final int mViewId;
     29     private final boolean mVirtual;
     30     private final int mVirtualId;
     31 
     32     /** @hide */
     33     @TestApi
     34     public AutofillId(int id) {
     35         mVirtual = false;
     36         mViewId = id;
     37         mVirtualId = View.NO_ID;
     38     }
     39 
     40     /** @hide */
     41     public AutofillId(AutofillId parent, int virtualChildId) {
     42         mVirtual = true;
     43         mViewId = parent.mViewId;
     44         mVirtualId = virtualChildId;
     45     }
     46 
     47     /** @hide */
     48     public AutofillId(int parentId, int virtualChildId) {
     49         mVirtual = true;
     50         mViewId = parentId;
     51         mVirtualId = virtualChildId;
     52     }
     53 
     54     /** @hide */
     55     public int getViewId() {
     56         return mViewId;
     57     }
     58 
     59     /** @hide */
     60     public int getVirtualChildId() {
     61         return mVirtualId;
     62     }
     63 
     64     /** @hide */
     65     public boolean isVirtual() {
     66         return mVirtual;
     67     }
     68 
     69     /////////////////////////////////
     70     //  Object "contract" methods. //
     71     /////////////////////////////////
     72 
     73     @Override
     74     public int hashCode() {
     75         final int prime = 31;
     76         int result = 1;
     77         result = prime * result + mViewId;
     78         result = prime * result + mVirtualId;
     79         return result;
     80     }
     81 
     82     @Override
     83     public boolean equals(Object obj) {
     84         if (this == obj) return true;
     85         if (obj == null) return false;
     86         if (getClass() != obj.getClass()) return false;
     87         final AutofillId other = (AutofillId) obj;
     88         if (mViewId != other.mViewId) return false;
     89         if (mVirtualId != other.mVirtualId) return false;
     90         return true;
     91     }
     92 
     93     @Override
     94     public String toString() {
     95         final StringBuilder builder = new StringBuilder().append(mViewId);
     96         if (mVirtual) {
     97             builder.append(':').append(mVirtualId);
     98         }
     99         return builder.toString();
    100     }
    101 
    102     @Override
    103     public int describeContents() {
    104         return 0;
    105     }
    106 
    107     @Override
    108     public void writeToParcel(Parcel parcel, int flags) {
    109         parcel.writeInt(mViewId);
    110         parcel.writeInt(mVirtual ? 1 : 0);
    111         parcel.writeInt(mVirtualId);
    112     }
    113 
    114     private AutofillId(Parcel parcel) {
    115         mViewId = parcel.readInt();
    116         mVirtual = parcel.readInt() == 1;
    117         mVirtualId = parcel.readInt();
    118     }
    119 
    120     public static final Parcelable.Creator<AutofillId> CREATOR =
    121             new Parcelable.Creator<AutofillId>() {
    122         @Override
    123         public AutofillId createFromParcel(Parcel source) {
    124             return new AutofillId(source);
    125         }
    126 
    127         @Override
    128         public AutofillId[] newArray(int size) {
    129             return new AutofillId[size];
    130         }
    131     };
    132 }
    133