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 
21 import android.annotation.NonNull;
22 import android.annotation.Nullable;
23 import android.app.ActivityThread.ActivityClientRecord;
24 import android.app.ClientTransactionHandler;
25 import android.os.IBinder;
26 import android.os.Parcel;
27 import android.os.Trace;
28 
29 /**
30  * Request to move an activity to stopped state.
31  * @hide
32  */
33 public class StopActivityItem extends ActivityLifecycleItem {
34 
35     private static final String TAG = "StopActivityItem";
36 
37     private int mConfigChanges;
38 
39     @Override
execute(ClientTransactionHandler client, ActivityClientRecord r, PendingTransactionActions pendingActions)40     public void execute(ClientTransactionHandler client, ActivityClientRecord r,
41             PendingTransactionActions pendingActions) {
42         Trace.traceBegin(TRACE_TAG_ACTIVITY_MANAGER, "activityStop");
43         client.handleStopActivity(r, mConfigChanges, pendingActions,
44                 true /* finalStateRequest */, "STOP_ACTIVITY_ITEM");
45         Trace.traceEnd(TRACE_TAG_ACTIVITY_MANAGER);
46     }
47 
48     @Override
postExecute(ClientTransactionHandler client, IBinder token, PendingTransactionActions pendingActions)49     public void postExecute(ClientTransactionHandler client, IBinder token,
50             PendingTransactionActions pendingActions) {
51         client.reportStop(pendingActions);
52     }
53 
54     @Override
getTargetState()55     public int getTargetState() {
56         return ON_STOP;
57     }
58 
59 
60     // ObjectPoolItem implementation
61 
StopActivityItem()62     private StopActivityItem() {}
63 
64     /**
65      * Obtain an instance initialized with provided params.
66      * @param configChanges Configuration pieces that changed.
67      */
obtain(int configChanges)68     public static StopActivityItem obtain(int configChanges) {
69         StopActivityItem instance = ObjectPool.obtain(StopActivityItem.class);
70         if (instance == null) {
71             instance = new StopActivityItem();
72         }
73         instance.mConfigChanges = configChanges;
74 
75         return instance;
76     }
77 
78     @Override
recycle()79     public void recycle() {
80         super.recycle();
81         mConfigChanges = 0;
82         ObjectPool.recycle(this);
83     }
84 
85 
86     // Parcelable implementation
87 
88     /** Write to Parcel. */
89     @Override
writeToParcel(Parcel dest, int flags)90     public void writeToParcel(Parcel dest, int flags) {
91         dest.writeInt(mConfigChanges);
92     }
93 
94     /** Read from Parcel. */
StopActivityItem(Parcel in)95     private StopActivityItem(Parcel in) {
96         mConfigChanges = in.readInt();
97     }
98 
99     public static final @NonNull Creator<StopActivityItem> CREATOR =
100             new Creator<StopActivityItem>() {
101         public StopActivityItem createFromParcel(Parcel in) {
102             return new StopActivityItem(in);
103         }
104 
105         public StopActivityItem[] newArray(int size) {
106             return new StopActivityItem[size];
107         }
108     };
109 
110     @Override
equals(@ullable Object o)111     public boolean equals(@Nullable Object o) {
112         if (this == o) {
113             return true;
114         }
115         if (o == null || getClass() != o.getClass()) {
116             return false;
117         }
118         final StopActivityItem other = (StopActivityItem) o;
119         return mConfigChanges == other.mConfigChanges;
120     }
121 
122     @Override
hashCode()123     public int hashCode() {
124         int result = 17;
125         result = 31 * result + mConfigChanges;
126         return result;
127     }
128 
129     @Override
toString()130     public String toString() {
131         return "StopActivityItem{configChanges=" + mConfigChanges + "}";
132     }
133 }
134