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/*
* Copyright (C) 2016 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.dialer.callcomposer.util;
import android.annotation.TargetApi;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Bitmap.CompressFormat;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Build.VERSION_CODES;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import com.android.dialer.common.Assert;
import com.android.dialer.common.LogUtil;
import com.android.dialer.common.concurrent.FallibleAsyncTask;
import com.android.dialer.util.DialerUtils;
import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStream;
/** Task for copying and resizing images to be shared with RCS process. */
@TargetApi(VERSION_CODES.M)
public class CopyAndResizeImageTask extends FallibleAsyncTask<Void, Void, File> {
public static final int MAX_OUTPUT_RESOLUTION = 640;
private static final String MIME_TYPE = "image/jpeg";
private final Context context;
private final Uri uri;
private final Callback callback;
public CopyAndResizeImageTask(
@NonNull Context context, @NonNull Uri uri, @NonNull Callback callback) {
this.context = Assert.isNotNull(context);
this.uri = Assert.isNotNull(uri);
this.callback = Assert.isNotNull(callback);
}
@Nullable
@Override
protected File doInBackgroundFallible(Void... params) throws Throwable {
Bitmap bitmap = BitmapFactory.decodeStream(context.getContentResolver().openInputStream(uri));
bitmap = resizeForEnrichedCalling(bitmap);
File outputFile = DialerUtils.createShareableFile(context);
try (OutputStream outputStream = new FileOutputStream(outputFile)) {
// Encode images to jpeg as it is better for camera pictures which we expect to be sending
bitmap.compress(CompressFormat.JPEG, 80, outputStream);
return outputFile;
}
}
@Override
protected void onPostExecute(FallibleTaskResult<File> result) {
if (result.isFailure()) {
callback.onCopyFailed(result.getThrowable());
} else {
callback.onCopySuccessful(result.getResult(), MIME_TYPE);
}
}
public static Bitmap resizeForEnrichedCalling(Bitmap image) {
Assert.isWorkerThread();
int width = image.getWidth();
int height = image.getHeight();
LogUtil.i(
"CopyAndResizeImageTask.resizeForEnrichedCalling",
"starting height: %d, width: %d",
height,
width);
if (width <= MAX_OUTPUT_RESOLUTION && height <= MAX_OUTPUT_RESOLUTION) {
LogUtil.i("CopyAndResizeImageTask.resizeForEnrichedCalling", "no resizing needed");
return image;
}
if (width > height) {
// landscape
float ratio = width / (float) MAX_OUTPUT_RESOLUTION;
width = MAX_OUTPUT_RESOLUTION;
height = (int) (height / ratio);
} else if (height > width) {
// portrait
float ratio = height / (float) MAX_OUTPUT_RESOLUTION;
height = MAX_OUTPUT_RESOLUTION;
width = (int) (width / ratio);
} else {
// square
height = MAX_OUTPUT_RESOLUTION;
width = MAX_OUTPUT_RESOLUTION;
}
LogUtil.i(
"CopyAndResizeImageTask.resizeForEnrichedCalling",
"ending height: %d, width: %d",
height,
width);
return Bitmap.createScaledBitmap(image, width, height, true);
}
/** Callback for callers to know when the task has finished */
public interface Callback {
void onCopySuccessful(File file, String mimeType);
void onCopyFailed(Throwable throwable);
}
}
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