1/*
2 * Copyright (C) 2015 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.systemui.statusbar.car;
18
19import android.content.Context;
20import android.util.AttributeSet;
21import android.view.View;
22import android.widget.LinearLayout;
23
24import com.android.systemui.R;
25import com.android.systemui.statusbar.phone.NavigationBarView;
26
27/**
28 * A custom navigation bar for the automotive use case.
29 * <p>
30 * The navigation bar in the automotive use case is more like a list of shortcuts, rendered
31 * in a linear layout.
32 */
33class CarNavigationBarView extends NavigationBarView {
34    private LinearLayout mNavButtons;
35    private LinearLayout mLightsOutButtons;
36
37    public CarNavigationBarView(Context context, AttributeSet attrs) {
38        super(context, attrs);
39    }
40
41    @Override
42    public void onFinishInflate() {
43        mNavButtons = (LinearLayout) findViewById(R.id.nav_buttons);
44        mLightsOutButtons = (LinearLayout) findViewById(R.id.lights_out);
45    }
46
47    public void addButton(CarNavigationButton button, CarNavigationButton lightsOutButton){
48        mNavButtons.addView(button);
49        mLightsOutButtons.addView(lightsOutButton);
50    }
51
52    @Override
53    public void setDisabledFlags(int disabledFlags, boolean force) {
54        // TODO: Populate.
55    }
56
57    @Override
58    public void reorient() {
59        // We expect the car head unit to always have a fixed rotation so we ignore this. The super
60        // class implentation expects mRotatedViews to be populated, so if you call into it, there
61        // is a possibility of a NullPointerException.
62    }
63
64    @Override
65    public View getCurrentView() {
66        return this;
67    }
68
69    @Override
70    public void setNavigationIconHints(int hints, boolean force) {
71        // We do not need to set the navigation icon hints for a vehicle
72        // Calling setNavigationIconHints in the base class will result in a NPE as the car
73        // navigation bar does not have a back button.
74    }
75}
76