/* * Copyright (C) 2017 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.dialer.searchfragment.remote; import android.content.Context; import android.database.Cursor; import android.database.MatrixCursor; import android.database.MergeCursor; import android.support.annotation.Nullable; import android.support.annotation.VisibleForTesting; import com.android.dialer.common.Assert; import com.android.dialer.searchfragment.common.SearchCursor; import com.android.dialer.searchfragment.remote.RemoteDirectoriesCursorLoader.Directory; import java.util.ArrayList; import java.util.List; /** * {@link MergeCursor} used for combining remote directory cursors into one cursor. * *
Usually a device with multiple Google accounts will have multiple remote directories returned * by {@link RemoteDirectoriesCursorLoader}, each represented as a {@link Directory}. * *
This cursor merges them together with a header at the start of each cursor/list using {@link
* Directory#getDisplayName()} as the header text.
*/
@VisibleForTesting(otherwise = VisibleForTesting.PACKAGE_PRIVATE)
public final class RemoteContactsCursor extends MergeCursor implements SearchCursor {
/**
* Returns a single cursor with headers inserted between each non-empty cursor. If all cursors are
* empty, null or closed, this method returns null.
*/
@Nullable
@VisibleForTesting(otherwise = VisibleForTesting.PACKAGE_PRIVATE)
public static RemoteContactsCursor newInstance(
Context context, Cursor[] cursors, List