1/*
2 * Copyright (C) 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
17package androidx.navigation;
18
19import android.os.Bundle;
20import android.support.annotation.NonNull;
21import android.support.annotation.Nullable;
22
23/**
24 * A {@link Navigator} that does not have a {@link Navigator.Name} used to test
25 * {@link SimpleNavigatorProvider}.
26 */
27class NoNameNavigator extends Navigator<NavDestination> {
28    @NonNull
29    @Override
30    public NavDestination createDestination() {
31        return new NavDestination(this);
32    }
33
34    @Override
35    public void navigate(@NonNull NavDestination destination, @Nullable Bundle args,
36            @Nullable NavOptions navOptions) {
37        throw new IllegalStateException("navigate is not supported");
38    }
39
40    @Override
41    public boolean popBackStack() {
42        throw new IllegalStateException("popBackStack is not supported");
43    }
44}
45