CameraModule.java revision faaee012acc80ad369cb03df9c196e48140f1e7b 
1/*
2 * Copyright (C) 2012 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;
18
19import android.content.Intent;
20import android.content.res.Configuration;
21import android.view.KeyEvent;
22import android.view.View;
23
24import com.android.camera.app.AppController;
25import com.android.camera.app.CameraProvider;
26import com.android.camera.app.CameraServices;
27import com.android.camera.app.MediaSaver;
28import com.android.camera.module.ModuleController;
29
30public abstract class CameraModule implements ModuleController {
31
32    /** Provides common services and functionality to the module. */
33    private final CameraServices mServices;
34    private final CameraProvider mCameraProvider;
35
36    public CameraModule(AppController app) {
37        mServices = app.getServices();
38        mCameraProvider = app.getCameraProvider();
39    }
40
41    @Override
42    public boolean onBackPressed() {
43        return false;
44    }
45
46    @Override
47    public void onPreviewVisibilityChanged(boolean visible) {
48        // Do nothing.
49    }
50
51    @Deprecated
52    public abstract boolean onKeyDown(int keyCode, KeyEvent event);
53
54    @Deprecated
55    public abstract boolean onKeyUp(int keyCode, KeyEvent event);
56
57    @Deprecated
58    public abstract void onSingleTapUp(View view, int x, int y);
59
60    @Deprecated
61    public abstract void onMediaSaverAvailable(MediaSaver s);
62
63    /**
64     * @return An instance containing common services to be used by the module.
65     */
66    protected CameraServices getServices() {
67        return mServices;
68    }
69
70    /**
71     * @return An instance used by the module to get the camera.
72     */
73    protected CameraProvider getCameraProvider() {
74        return mCameraProvider;
75    }
76
77    /**
78     * Requests the back camera through {@link CameraProvider}.
79     * This calls {@link
80     * com.android.camera.app.CameraProvider#requestCamera(int)}. The camera
81     * will be returned through {@link
82     * #onCameraAvailable(com.android.camera.app.CameraManager.CameraProxy)}
83     * when it's available.
84     */
85    protected void requestBackCamera() {
86        mCameraProvider.requestCamera(mCameraProvider.getFirstBackCameraId());
87    }
88}
89