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      1 /*
      2  * Copyright (C) 2011 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 com.android.server.wm;
     18 
     19 import com.android.server.policy.WindowManagerPolicy.StartingSurface;
     20 
     21 /**
     22  * Represents the model about how a starting window should be constructed.
     23  */
     24 public abstract class StartingData {
     25 
     26     protected final WindowManagerService mService;
     27 
     28     protected StartingData(WindowManagerService service) {
     29         mService = service;
     30     }
     31 
     32     /**
     33      * Creates the actual starting window surface. DO NOT HOLD THE WINDOW MANAGER LOCK WHEN CALLING
     34      * THIS METHOD.
     35      *
     36      * @param atoken the app to add the starting window to
     37      * @return a class implementing {@link StartingSurface} for easy removal with
     38      *         {@link StartingSurface#remove}
     39      */
     40     abstract StartingSurface createStartingSurface(AppWindowToken atoken);
     41 }