Andrii Kulian | d70cdb9 | 2019-01-08 15:03:50 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2019 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.app.servertransaction; |
| 17 | |
| 18 | import static android.os.Trace.TRACE_TAG_ACTIVITY_MANAGER; |
| 19 | |
Andrii Kulian | 86e70fc | 2019-02-12 11:04:10 +0000 | [diff] [blame] | 20 | import android.app.ActivityTaskManager; |
Andrii Kulian | d70cdb9 | 2019-01-08 15:03:50 -0800 | [diff] [blame] | 21 | import android.app.ClientTransactionHandler; |
| 22 | import android.os.IBinder; |
| 23 | import android.os.Parcel; |
Andrii Kulian | 86e70fc | 2019-02-12 11:04:10 +0000 | [diff] [blame] | 24 | import android.os.RemoteException; |
Andrii Kulian | d70cdb9 | 2019-01-08 15:03:50 -0800 | [diff] [blame] | 25 | import android.os.Trace; |
| 26 | |
| 27 | /** |
| 28 | * Top resumed activity changed callback. |
| 29 | * @hide |
| 30 | */ |
| 31 | public class TopResumedActivityChangeItem extends ClientTransactionItem { |
| 32 | |
| 33 | private boolean mOnTop; |
| 34 | |
| 35 | @Override |
| 36 | public void execute(ClientTransactionHandler client, IBinder token, |
| 37 | PendingTransactionActions pendingActions) { |
| 38 | Trace.traceBegin(TRACE_TAG_ACTIVITY_MANAGER, "topResumedActivityChangeItem"); |
| 39 | client.handleTopResumedActivityChanged(token, mOnTop, "topResumedActivityChangeItem"); |
| 40 | Trace.traceEnd(TRACE_TAG_ACTIVITY_MANAGER); |
| 41 | } |
| 42 | |
Andrii Kulian | 86e70fc | 2019-02-12 11:04:10 +0000 | [diff] [blame] | 43 | @Override |
| 44 | public void postExecute(ClientTransactionHandler client, IBinder token, |
| 45 | PendingTransactionActions pendingActions) { |
| 46 | if (mOnTop) { |
| 47 | return; |
| 48 | } |
| 49 | |
| 50 | // The loss of top resumed state can always be reported immediately in postExecute |
| 51 | // because only three cases are possible: |
| 52 | // 1. Activity is in RESUMED state now and it just handled the callback in #execute(). |
| 53 | // 2. Activity wasn't RESUMED yet, which means that it didn't receive the top state yet. |
| 54 | // 3. Activity is PAUSED or in other lifecycle state after PAUSED. In this case top resumed |
| 55 | // state loss was already called right before pausing. |
| 56 | try { |
| 57 | ActivityTaskManager.getService().activityTopResumedStateLost(); |
| 58 | } catch (RemoteException ex) { |
| 59 | throw ex.rethrowFromSystemServer(); |
| 60 | } |
| 61 | } |
| 62 | |
Andrii Kulian | d70cdb9 | 2019-01-08 15:03:50 -0800 | [diff] [blame] | 63 | |
| 64 | // ObjectPoolItem implementation |
| 65 | |
| 66 | private TopResumedActivityChangeItem() {} |
| 67 | |
| 68 | /** Obtain an instance initialized with provided params. */ |
| 69 | public static TopResumedActivityChangeItem obtain(boolean onTop) { |
| 70 | TopResumedActivityChangeItem instance = |
| 71 | ObjectPool.obtain(TopResumedActivityChangeItem.class); |
| 72 | if (instance == null) { |
| 73 | instance = new TopResumedActivityChangeItem(); |
| 74 | } |
| 75 | instance.mOnTop = onTop; |
| 76 | |
| 77 | return instance; |
| 78 | } |
| 79 | |
| 80 | @Override |
| 81 | public void recycle() { |
| 82 | mOnTop = false; |
| 83 | ObjectPool.recycle(this); |
| 84 | } |
| 85 | |
| 86 | |
| 87 | // Parcelable implementation |
| 88 | |
| 89 | /** Write to Parcel. */ |
| 90 | @Override |
| 91 | public void writeToParcel(Parcel dest, int flags) { |
| 92 | dest.writeBoolean(mOnTop); |
| 93 | } |
| 94 | |
| 95 | /** Read from Parcel. */ |
| 96 | private TopResumedActivityChangeItem(Parcel in) { |
| 97 | mOnTop = in.readBoolean(); |
| 98 | } |
| 99 | |
Jeff Sharkey | 9e8f83d | 2019-02-28 12:06:45 -0700 | [diff] [blame] | 100 | public static final @android.annotation.NonNull Creator<TopResumedActivityChangeItem> CREATOR = |
Andrii Kulian | d70cdb9 | 2019-01-08 15:03:50 -0800 | [diff] [blame] | 101 | new Creator<TopResumedActivityChangeItem>() { |
| 102 | public TopResumedActivityChangeItem createFromParcel(Parcel in) { |
| 103 | return new TopResumedActivityChangeItem(in); |
| 104 | } |
| 105 | |
| 106 | public TopResumedActivityChangeItem[] newArray(int size) { |
| 107 | return new TopResumedActivityChangeItem[size]; |
| 108 | } |
| 109 | }; |
| 110 | |
| 111 | @Override |
| 112 | public boolean equals(Object o) { |
| 113 | if (this == o) { |
| 114 | return true; |
| 115 | } |
| 116 | if (o == null || getClass() != o.getClass()) { |
| 117 | return false; |
| 118 | } |
| 119 | final TopResumedActivityChangeItem other = (TopResumedActivityChangeItem) o; |
| 120 | return mOnTop == other.mOnTop; |
| 121 | } |
| 122 | |
| 123 | @Override |
| 124 | public int hashCode() { |
| 125 | int result = 17; |
| 126 | result = 31 * result + (mOnTop ? 1 : 0); |
| 127 | return result; |
| 128 | } |
| 129 | |
| 130 | @Override |
| 131 | public String toString() { |
| 132 | return "TopResumedActivityChangeItem{onTop=" + mOnTop + "}"; |
| 133 | } |
| 134 | } |