Signal-Android/app/src/main/java/org/thoughtcrime/securesms/mediasend/camerax/FlashModeConverter.java

79 lines
2.3 KiB
Java

/*
* Copyright 2019 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 org.thoughtcrime.securesms.mediasend.camerax;
import static androidx.camera.core.ImageCapture.FLASH_MODE_AUTO;
import static androidx.camera.core.ImageCapture.FLASH_MODE_OFF;
import static androidx.camera.core.ImageCapture.FLASH_MODE_ON;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.camera.core.ImageCapture.FlashMode;
/**
* Helper class that defines certain enum-like methods for {@link FlashMode}
*/
final class FlashModeConverter {
private FlashModeConverter() {
}
/**
* Returns the {@link FlashMode} constant for the specified name
*
* @param name The name of the {@link FlashMode} to return
* @return The {@link FlashMode} constant for the specified name
*/
@FlashMode
public static int valueOf(@Nullable final String name) {
if (name == null) {
throw new NullPointerException("name cannot be null");
}
switch (name) {
case "AUTO":
return FLASH_MODE_AUTO;
case "ON":
return FLASH_MODE_ON;
case "OFF":
return FLASH_MODE_OFF;
default:
throw new IllegalArgumentException("Unknown flash mode name " + name);
}
}
/**
* Returns the name of the {@link FlashMode} constant, exactly as it is declared.
*
* @param flashMode A {@link FlashMode} constant
* @return The name of the {@link FlashMode} constant.
*/
@NonNull
public static String nameOf(@FlashMode final int flashMode) {
switch (flashMode) {
case FLASH_MODE_AUTO:
return "AUTO";
case FLASH_MODE_ON:
return "ON";
case FLASH_MODE_OFF:
return "OFF";
default:
throw new IllegalArgumentException("Unknown flash mode " + flashMode);
}
}
}