1/*
2 * Copyright (C) 2010 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.camera.ui;
18
19import com.android.camera.CameraPreference.OnPreferenceChangedListener;
20import com.android.camera.ListPreference;
21import com.android.camera.R;
22
23import android.content.Context;
24import android.hardware.Camera.CameraInfo;
25import android.view.View;
26
27/**
28 * A view for switching the front/back camera.
29 */
30public class CameraPicker extends RotateImageView implements View.OnClickListener {
31    private static int mImageResource;
32
33    private OnPreferenceChangedListener mListener;
34    private ListPreference mPreference;
35    private CharSequence[] mCameras;
36
37    public CameraPicker(Context context) {
38        super(context);
39        setImageResource(mImageResource);
40        setContentDescription(getResources().getString(
41                R.string.accessibility_camera_picker));
42    }
43
44    public static void setImageResourceId(int imageResource) {
45        mImageResource = imageResource;
46    }
47
48    public void setListener(OnPreferenceChangedListener listener) {
49        mListener = listener;
50    }
51
52    public void initialize(ListPreference pref) {
53        mPreference = pref;
54        mCameras = pref.getEntryValues();
55        if (mCameras == null) return;
56        setOnClickListener(this);
57        setVisibility(View.VISIBLE);
58    }
59
60    @Override
61    public void onClick(View v) {
62        if (mCameras == null) return;
63        int index = mPreference.findIndexOfValue(mPreference.getValue());
64        CharSequence[] values = mPreference.getEntryValues();
65        index = (index + 1) % values.length;
66        mPreference.setValue((String) mCameras[index]);
67        mListener.onSharedPreferenceChanged();
68    }
69}
70