1/*
2 * Copyright (C) 2016 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
17package com.android.dialer.shortcuts;
18
19import android.content.Context;
20import android.os.Build;
21import android.support.annotation.MainThread;
22import android.support.annotation.NonNull;
23import android.support.annotation.WorkerThread;
24import com.android.contacts.common.list.ContactEntry;
25import com.android.dialer.common.Assert;
26import com.android.dialer.common.LogUtil;
27import com.android.dialer.common.concurrent.AsyncTaskExecutor;
28import com.android.dialer.common.concurrent.AsyncTaskExecutors;
29import com.android.dialer.common.concurrent.FallibleAsyncTask;
30import java.util.ArrayList;
31import java.util.List;
32
33/** Refreshes launcher shortcuts from UI components using provided list of contacts. */
34public final class ShortcutRefresher {
35
36  private static final AsyncTaskExecutor EXECUTOR = AsyncTaskExecutors.createThreadPoolExecutor();
37
38  /** Asynchronously updates launcher shortcuts using the provided list of contacts. */
39  @MainThread
40  public static void refresh(@NonNull Context context, List<ContactEntry> contacts) {
41    Assert.isMainThread();
42    Assert.isNotNull(context);
43
44    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N_MR1) {
45      return;
46    }
47
48    if (!Shortcuts.areDynamicShortcutsEnabled(context)) {
49      return;
50    }
51
52    //noinspection unchecked
53    EXECUTOR.submit(Task.ID, new Task(context), new ArrayList<>(contacts));
54  }
55
56  private static final class Task extends FallibleAsyncTask<List<ContactEntry>, Void, Void> {
57    private static final String ID = "ShortcutRefresher.Task";
58
59    private final Context context;
60
61    Task(Context context) {
62      this.context = context;
63    }
64
65    /**
66     * @param params array containing exactly one element, the list of contacts from favorites
67     *     tiles, ordered in tile order.
68     */
69    @SafeVarargs
70    @Override
71    @NonNull
72    @WorkerThread
73    protected final Void doInBackgroundFallible(List<ContactEntry>... params) {
74      Assert.isWorkerThread();
75      LogUtil.enterBlock("ShortcutRefresher.Task.doInBackground");
76
77      // Only dynamic shortcuts are maintained from UI components. Pinned shortcuts are maintained
78      // by the job scheduler. This is because a pinned contact may not necessarily still be in the
79      // favorites tiles, so refreshing it would require an additional database query. We don't want
80      // to incur the cost of that extra database query every time the favorites tiles change.
81      new DynamicShortcuts(context, new IconFactory(context)).refresh(params[0]); // Blocking
82
83      return null;
84    }
85  }
86}
87