1 /* 2 * Copyright 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 17 package android.app.servertransaction; 18 19 import static android.os.Trace.TRACE_TAG_ACTIVITY_MANAGER; 20 import static android.view.Display.INVALID_DISPLAY; 21 22 import android.annotation.NonNull; 23 import android.annotation.Nullable; 24 import android.app.ActivityThread.ActivityClientRecord; 25 import android.app.ClientTransactionHandler; 26 import android.content.res.Configuration; 27 import android.os.IBinder; 28 import android.os.Parcel; 29 import android.os.Trace; 30 31 import java.util.Objects; 32 33 /** 34 * Activity configuration changed callback. 35 * @hide 36 */ 37 public class ActivityConfigurationChangeItem extends ActivityTransactionItem { 38 39 private Configuration mConfiguration; 40 41 @Override preExecute(android.app.ClientTransactionHandler client, IBinder token)42 public void preExecute(android.app.ClientTransactionHandler client, IBinder token) { 43 // Notify the client of an upcoming change in the token configuration. This ensures that 44 // batches of config change items only process the newest configuration. 45 client.updatePendingActivityConfiguration(token, mConfiguration); 46 } 47 48 @Override execute(ClientTransactionHandler client, ActivityClientRecord r, PendingTransactionActions pendingActions)49 public void execute(ClientTransactionHandler client, ActivityClientRecord r, 50 PendingTransactionActions pendingActions) { 51 // TODO(lifecycler): detect if PIP or multi-window mode changed and report it here. 52 Trace.traceBegin(TRACE_TAG_ACTIVITY_MANAGER, "activityConfigChanged"); 53 client.handleActivityConfigurationChanged(r, mConfiguration, INVALID_DISPLAY); 54 Trace.traceEnd(TRACE_TAG_ACTIVITY_MANAGER); 55 } 56 57 58 // ObjectPoolItem implementation 59 ActivityConfigurationChangeItem()60 private ActivityConfigurationChangeItem() {} 61 62 /** Obtain an instance initialized with provided params. */ obtain(@onNull Configuration config)63 public static ActivityConfigurationChangeItem obtain(@NonNull Configuration config) { 64 if (config == null) { 65 throw new IllegalArgumentException("Config must not be null."); 66 } 67 68 ActivityConfigurationChangeItem instance = 69 ObjectPool.obtain(ActivityConfigurationChangeItem.class); 70 if (instance == null) { 71 instance = new ActivityConfigurationChangeItem(); 72 } 73 instance.mConfiguration = config; 74 75 return instance; 76 } 77 78 @Override recycle()79 public void recycle() { 80 mConfiguration = Configuration.EMPTY; 81 ObjectPool.recycle(this); 82 } 83 84 85 // Parcelable implementation 86 87 /** Write to Parcel. */ 88 @Override writeToParcel(Parcel dest, int flags)89 public void writeToParcel(Parcel dest, int flags) { 90 dest.writeTypedObject(mConfiguration, flags); 91 } 92 93 /** Read from Parcel. */ ActivityConfigurationChangeItem(Parcel in)94 private ActivityConfigurationChangeItem(Parcel in) { 95 mConfiguration = in.readTypedObject(Configuration.CREATOR); 96 } 97 98 public static final @NonNull Creator<ActivityConfigurationChangeItem> CREATOR = 99 new Creator<ActivityConfigurationChangeItem>() { 100 public ActivityConfigurationChangeItem createFromParcel(Parcel in) { 101 return new ActivityConfigurationChangeItem(in); 102 } 103 104 public ActivityConfigurationChangeItem[] newArray(int size) { 105 return new ActivityConfigurationChangeItem[size]; 106 } 107 }; 108 109 @Override equals(@ullable Object o)110 public boolean equals(@Nullable Object o) { 111 if (this == o) { 112 return true; 113 } 114 if (o == null || getClass() != o.getClass()) { 115 return false; 116 } 117 final ActivityConfigurationChangeItem other = (ActivityConfigurationChangeItem) o; 118 return Objects.equals(mConfiguration, other.mConfiguration); 119 } 120 121 @Override hashCode()122 public int hashCode() { 123 return mConfiguration.hashCode(); 124 } 125 126 @Override toString()127 public String toString() { 128 return "ActivityConfigurationChange{config=" + mConfiguration + "}"; 129 } 130 } 131