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/*
* Copyright (C) 2012 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.camera;
import android.view.KeyEvent;
import android.view.View;
import com.android.camera.app.AppController;
import com.android.camera.app.CameraProvider;
import com.android.camera.app.CameraServices;
import com.android.camera.module.ModuleController;
public abstract class CameraModule implements ModuleController {
/** Provides common services and functionality to the module. */
private final CameraServices mServices;
private final CameraProvider mCameraProvider;
public CameraModule(AppController app) {
mServices = app.getServices();
mCameraProvider = app.getCameraProvider();
}
@Override
public boolean onBackPressed() {
return false;
}
@Override
public void onPreviewVisibilityChanged(int visibility) {
// Do nothing.
}
@Deprecated
public abstract boolean onKeyDown(int keyCode, KeyEvent event);
@Deprecated
public abstract boolean onKeyUp(int keyCode, KeyEvent event);
@Deprecated
public abstract void onSingleTapUp(View view, int x, int y);
/**
* @return An instance containing common services to be used by the module.
*/
protected CameraServices getServices() {
return mServices;
}
/**
* @return An instance used by the module to get the camera.
*/
protected CameraProvider getCameraProvider() {
return mCameraProvider;
}
/**
* Requests the back camera through {@link CameraProvider}.
* This calls {@link
* com.android.camera.app.CameraProvider#requestCamera(int)}. The camera
* will be returned through {@link
* #onCameraAvailable(com.android.ex.camera2.portability.CameraAgent.CameraProxy)}
* when it's available. This is a no-op when there's no back camera
* available.
*/
protected void requestBackCamera() {
int backCameraId = mCameraProvider.getFirstBackCameraId();
if (backCameraId != -1) {
mCameraProvider.requestCamera(backCameraId);
}
}
public void onPreviewInitialDataReceived() {}
/**
* Releases the back camera through {@link CameraProvider}.
* This calls {@link
* com.android.camera.app.CameraProvider#releaseCamera(int)}.
* This is a no-op when there's no back camera available.
*/
protected void releaseBackCamera() {
int backCameraId = mCameraProvider.getFirstBackCameraId();
if (backCameraId != -1) {
mCameraProvider.releaseCamera(backCameraId);
}
}
/**
* @return An accessibility String to be announced during the peek animation.
*/
public abstract String getPeekAccessibilityString();
}
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