| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.documentsui; |
| |
| import android.annotation.CallSuper; |
| import android.os.AsyncTask; |
| import android.os.Handler; |
| |
| import com.android.documentsui.base.CheckedTask; |
| import com.android.documentsui.base.DocumentInfo; |
| |
| /** |
| * A {@link CheckedTask} that takes and query SAF to obtain the |
| * {@link DocumentInfo} of its root document and call supplied callback to handle the |
| * {@link DocumentInfo}. |
| */ |
| public abstract class TimeoutTask<Input, Output> extends CheckedTask<Input, Output> { |
| private static final int DEFAULT_TIMEOUT = -1; |
| |
| private long mTimeout = DEFAULT_TIMEOUT; |
| |
| public TimeoutTask(Check check) { |
| super(check); |
| } |
| |
| public void setTimeout(long timeout) { |
| mTimeout = timeout; |
| } |
| |
| @CallSuper |
| @Override |
| protected void prepare() { |
| if (mTimeout < 0) { |
| return; |
| } |
| |
| Handler handler = new Handler(); |
| handler.postDelayed(() -> { |
| if (getStatus() == AsyncTask.Status.RUNNING) { |
| cancel(true); |
| this.finish(null); |
| } |
| }, mTimeout); |
| } |
| |
| } |