nextcloud-android/src/main/java/com/owncloud/android/datamodel/ThumbnailsCacheManager.java

1250 lines
51 KiB
Java

/*
* ownCloud Android client application
*
* @author Tobias Kaminsky
* @author David A. Velasco
* @author Chris Narkiewicz
* Copyright (C) 2015 ownCloud Inc.
* Copyright (C) 2019 Chris Narkiewicz <hello@ezaquarii.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package com.owncloud.android.datamodel;
import android.accounts.Account;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.Bitmap.CompressFormat;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Point;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.media.MediaMetadataRetriever;
import android.media.ThumbnailUtils;
import android.net.Uri;
import android.os.AsyncTask;
import android.provider.MediaStore;
import android.text.TextUtils;
import android.view.Display;
import android.view.MenuItem;
import android.view.WindowManager;
import android.widget.ImageView;
import com.nextcloud.client.network.ConnectivityService;
import com.owncloud.android.MainApp;
import com.owncloud.android.R;
import com.owncloud.android.lib.common.OwnCloudAccount;
import com.owncloud.android.lib.common.OwnCloudClient;
import com.owncloud.android.lib.common.OwnCloudClientManagerFactory;
import com.owncloud.android.lib.common.operations.RemoteOperation;
import com.owncloud.android.lib.common.utils.Log_OC;
import com.owncloud.android.lib.resources.files.model.ServerFileInterface;
import com.owncloud.android.lib.resources.trashbin.model.TrashbinFile;
import com.owncloud.android.ui.TextDrawable;
import com.owncloud.android.ui.adapter.DiskLruImageCache;
import com.owncloud.android.ui.fragment.FileFragment;
import com.owncloud.android.ui.preview.PreviewImageFragment;
import com.owncloud.android.utils.BitmapUtils;
import com.owncloud.android.utils.DisplayUtils.AvatarGenerationListener;
import com.owncloud.android.utils.FileStorageUtils;
import com.owncloud.android.utils.MimeTypeUtil;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.methods.GetMethod;
import org.jetbrains.annotations.NotNull;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.lang.ref.WeakReference;
import java.net.URLEncoder;
import java.util.List;
import java.util.Locale;
import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
/**
* Manager for concurrent access to thumbnails cache.
*/
public final class ThumbnailsCacheManager {
public static final String PREFIX_RESIZED_IMAGE = "r";
public static final String PREFIX_THUMBNAIL = "t";
private static final String TAG = ThumbnailsCacheManager.class.getSimpleName();
private static final String PNG_MIMETYPE = "image/png";
private static final String CACHE_FOLDER = "thumbnailCache";
public static final String AVATAR = "avatar";
private static final String AVATAR_TIMESTAMP = "avatarTimestamp";
private static final String ETAG = "ETag";
private static final Object mThumbnailsDiskCacheLock = new Object();
private static DiskLruImageCache mThumbnailCache;
private static boolean mThumbnailCacheStarting = true;
private static final int DISK_CACHE_SIZE = 1024 * 1024 * 200; // 200MB
private static final CompressFormat mCompressFormat = CompressFormat.JPEG;
private static final int mCompressQuality = 70;
private static OwnCloudClient mClient;
public static final Bitmap mDefaultImg = BitmapFactory.decodeResource(MainApp.getAppContext().getResources(),
R.drawable.file_image);
public static final Bitmap mDefaultVideo = BitmapFactory.decodeResource(MainApp.getAppContext().getResources(),
R.drawable.file_movie);
private ThumbnailsCacheManager() {
}
public static class InitDiskCacheTask extends AsyncTask<File, Void, Void> {
@Override
protected Void doInBackground(File... params) {
synchronized (mThumbnailsDiskCacheLock) {
mThumbnailCacheStarting = true;
if (mThumbnailCache == null) {
try {
File cacheDir = MainApp.getAppContext().getCacheDir();
if (cacheDir == null) {
throw new FileNotFoundException("Thumbnail cache could not be opened");
}
String cachePath = cacheDir.getPath() + File.separator + CACHE_FOLDER;
Log_OC.d(TAG, "thumbnail cache dir: " + cachePath);
File diskCacheDir = new File(cachePath);
// migrate from external cache to internal cache
File oldCacheDir = MainApp.getAppContext().getExternalCacheDir();
if (oldCacheDir != null && oldCacheDir.exists()) {
String cacheOldPath = oldCacheDir.getPath() + File.separator + CACHE_FOLDER;
File diskOldCacheDir = new File(cacheOldPath);
FileStorageUtils.copyDirs(diskOldCacheDir, diskCacheDir);
FileStorageUtils.deleteRecursive(diskOldCacheDir);
}
mThumbnailCache = new DiskLruImageCache(diskCacheDir, DISK_CACHE_SIZE, mCompressFormat,
mCompressQuality);
} catch (Exception e) {
Log_OC.d(TAG, String.format(Locale.US, "Disk cache init failed: %s", e.getMessage()));
mThumbnailCache = null;
}
}
mThumbnailCacheStarting = false; // Finished initialization
mThumbnailsDiskCacheLock.notifyAll(); // Wake any waiting threads
}
return null;
}
}
/**
* Converts size of file icon from dp to pixel
* @return int
*/
private static int getThumbnailDimension(){
// Converts dp to pixel
Resources r = MainApp.getAppContext().getResources();
return Math.round(r.getDimension(R.dimen.file_icon_size_grid));
}
/**
* Converts dimension of screen as point
*
* @return Point
*/
private static Point getScreenDimension() {
WindowManager wm = (WindowManager) MainApp.getAppContext().getSystemService(Context.WINDOW_SERVICE);
Display display = wm.getDefaultDisplay();
Point point = new Point();
display.getSize(point);
return point;
}
/**
* Add thumbnail to cache
* @param imageKey: thumb key
* @param bitmap: image for extracting thumbnail
* @param path: image path
* @param pxW: thumbnail width in pixel
* @param pxH: thumbnail height in pixel
* @return Bitmap
*/
private static Bitmap addThumbnailToCache(String imageKey, Bitmap bitmap, String path, int pxW, int pxH){
Bitmap thumbnail = ThumbnailUtils.extractThumbnail(bitmap, pxW, pxH);
// Rotate image, obeying exif tag
thumbnail = BitmapUtils.rotateImage(thumbnail,path);
// Add thumbnail to cache
addBitmapToCache(imageKey, thumbnail);
return thumbnail;
}
public static void addBitmapToCache(String key, Bitmap bitmap) {
synchronized (mThumbnailsDiskCacheLock) {
if (mThumbnailCache != null) {
mThumbnailCache.put(key, bitmap);
}
}
}
public static boolean containsBitmap(String key) {
return mThumbnailCache.containsKey(key);
}
public static Bitmap getBitmapFromDiskCache(String key) {
synchronized (mThumbnailsDiskCacheLock) {
// Wait while disk cache is started from background thread
while (mThumbnailCacheStarting) {
try {
mThumbnailsDiskCacheLock.wait();
} catch (InterruptedException e) {
Log_OC.e(TAG, "Wait in mThumbnailsDiskCacheLock was interrupted", e);
}
}
if (mThumbnailCache != null) {
return mThumbnailCache.getBitmap(key);
}
}
return null;
}
public static class ResizedImageGenerationTask extends AsyncTask<Object, Void, Bitmap> {
private FileFragment fileFragment;
private FileDataStorageManager storageManager;
private Account account;
private WeakReference<ImageView> imageViewReference;
private OCFile file;
private ConnectivityService connectivityService;
public ResizedImageGenerationTask(FileFragment fileFragment,
ImageView imageView,
FileDataStorageManager storageManager,
ConnectivityService connectivityService,
Account account)
throws IllegalArgumentException {
this.fileFragment = fileFragment;
imageViewReference = new WeakReference<>(imageView);
this.storageManager = storageManager;
this.connectivityService = connectivityService;
this.account = account;
}
@Override
protected Bitmap doInBackground(Object... params) {
Bitmap thumbnail = null;
file = (OCFile) params[0];
try {
if (account != null) {
OwnCloudAccount ocAccount = new OwnCloudAccount(account, MainApp.getAppContext());
mClient = OwnCloudClientManagerFactory.getDefaultSingleton().getClientFor(ocAccount,
MainApp.getAppContext());
}
thumbnail = doResizedImageInBackground();
if (MimeTypeUtil.isVideo(file) && thumbnail != null) {
thumbnail = addVideoOverlay(thumbnail);
}
} catch (OutOfMemoryError oome) {
Log_OC.e(TAG, "Out of memory");
} catch (Throwable t) {
// the app should never break due to a problem with thumbnails
Log_OC.e(TAG, "Generation of thumbnail for " + file + " failed", t);
}
return thumbnail;
}
private Bitmap doResizedImageInBackground() {
Bitmap thumbnail;
String imageKey = PREFIX_RESIZED_IMAGE + file.getRemoteId();
// Check disk cache in background thread
thumbnail = getBitmapFromDiskCache(imageKey);
// Not found in disk cache
if (thumbnail == null || file.isUpdateThumbnailNeeded()) {
Point p = getScreenDimension();
int pxW = p.x;
int pxH = p.y;
if (file.isDown()) {
Bitmap bitmap = BitmapUtils.decodeSampledBitmapFromFile(file.getStoragePath(), pxW, pxH);
if (bitmap != null) {
// Handle PNG
if (PNG_MIMETYPE.equalsIgnoreCase(file.getMimeType())) {
bitmap = handlePNG(bitmap, pxW, pxH);
}
thumbnail = addThumbnailToCache(imageKey, bitmap, file.getStoragePath(), pxW, pxH);
file.setUpdateThumbnailNeeded(false);
storageManager.saveFile(file);
}
} else {
// Download thumbnail from server
if (mClient != null) {
GetMethod getMethod = null;
try {
String uri = mClient.getBaseUri() + "/index.php/core/preview.png?file="
+ URLEncoder.encode(file.getRemotePath())
+ "&x=" + pxW + "&y=" + pxH + "&a=1&mode=cover&forceIcon=0";
getMethod = new GetMethod(uri);
int status = mClient.executeMethod(getMethod);
if (status == HttpStatus.SC_OK) {
InputStream inputStream = getMethod.getResponseBodyAsStream();
thumbnail = BitmapFactory.decodeStream(inputStream);
} else {
mClient.exhaustResponse(getMethod.getResponseBodyAsStream());
}
// Handle PNG
if (thumbnail != null && PNG_MIMETYPE.equalsIgnoreCase(file.getMimeType())) {
thumbnail = handlePNG(thumbnail, thumbnail.getWidth(), thumbnail.getHeight());
}
// Add thumbnail to cache
if (thumbnail != null) {
Log_OC.d(TAG, "add thumbnail to cache: " + file.getFileName());
addBitmapToCache(imageKey, thumbnail);
}
} catch (Exception e) {
Log_OC.d(TAG, e.getMessage(), e);
} finally {
if (getMethod != null) {
getMethod.releaseConnection();
}
}
}
}
}
return thumbnail;
}
protected void onPostExecute(Bitmap bitmap) {
if (imageViewReference != null) {
final ImageView imageView = imageViewReference.get();
if (bitmap != null) {
final ResizedImageGenerationTask bitmapWorkerTask = getResizedImageGenerationWorkerTask(imageView);
if (this == bitmapWorkerTask) {
String tagId = String.valueOf(file.getFileId());
if (String.valueOf(imageView.getTag()).equals(tagId)) {
imageView.setImageBitmap(bitmap);
}
}
} else {
new Thread(() -> {
if (connectivityService.isInternetWalled()) {
if (fileFragment instanceof PreviewImageFragment) {
((PreviewImageFragment) fileFragment).setNoConnectionErrorMessage();
}
} else {
if (fileFragment instanceof PreviewImageFragment) {
((PreviewImageFragment) fileFragment).setErrorPreviewMessage();
}
}
}).start();
}
}
}
}
public static class ThumbnailGenerationTaskObject {
private Object file;
private String imageKey;
public ThumbnailGenerationTaskObject(Object file, String imageKey) {
this.file = file;
this.imageKey = imageKey;
}
private Object getFile() {
return file;
}
private String getImageKey() {
return imageKey;
}
}
public static class ThumbnailGenerationTask extends AsyncTask<ThumbnailGenerationTaskObject, Void, Bitmap> {
private final WeakReference<ImageView> mImageViewReference;
private static Account mAccount;
private List<ThumbnailGenerationTask> mAsyncTasks;
private Object mFile;
private String mImageKey;
private FileDataStorageManager mStorageManager;
private GetMethod getMethod;
public ThumbnailGenerationTask(ImageView imageView, FileDataStorageManager storageManager, Account account)
throws IllegalArgumentException {
this(imageView, storageManager, account, null);
}
public ThumbnailGenerationTask(ImageView imageView, FileDataStorageManager storageManager,
Account account, List<ThumbnailGenerationTask> asyncTasks)
throws IllegalArgumentException {
// Use a WeakReference to ensure the ImageView can be garbage collected
mImageViewReference = new WeakReference<>(imageView);
if (storageManager == null) {
throw new IllegalArgumentException("storageManager must not be NULL");
}
mStorageManager = storageManager;
mAccount = account;
mAsyncTasks = asyncTasks;
}
public GetMethod getGetMethod() {
return getMethod;
}
public ThumbnailGenerationTask(FileDataStorageManager storageManager, Account account){
if (storageManager == null) {
throw new IllegalArgumentException("storageManager must not be NULL");
}
mStorageManager = storageManager;
mAccount = account;
mImageViewReference = null;
}
public ThumbnailGenerationTask(ImageView imageView) {
// Use a WeakReference to ensure the ImageView can be garbage collected
mImageViewReference = new WeakReference<>(imageView);
}
@SuppressFBWarnings("Dm")
@Override
protected Bitmap doInBackground(ThumbnailGenerationTaskObject... params) {
Bitmap thumbnail = null;
try {
if (mAccount != null) {
OwnCloudAccount ocAccount = new OwnCloudAccount(
mAccount,
MainApp.getAppContext()
);
mClient = OwnCloudClientManagerFactory.getDefaultSingleton().
getClientFor(ocAccount, MainApp.getAppContext());
}
ThumbnailGenerationTaskObject object = params[0];
mFile = object.getFile();
mImageKey = object.getImageKey();
if (mFile instanceof ServerFileInterface) {
thumbnail = doThumbnailFromOCFileInBackground();
if (MimeTypeUtil.isVideo((ServerFileInterface) mFile) && thumbnail != null) {
thumbnail = addVideoOverlay(thumbnail);
}
} else if (mFile instanceof File) {
thumbnail = doFileInBackground();
String url = ((File) mFile).getAbsolutePath();
String mMimeType = FileStorageUtils.getMimeTypeFromName(url);
if (MimeTypeUtil.isVideo(mMimeType) && thumbnail != null) {
thumbnail = addVideoOverlay(thumbnail);
}
//} else { do nothing
}
} catch(OutOfMemoryError oome) {
Log_OC.e(TAG, "Out of memory");
} catch (Throwable t) {
// the app should never break due to a problem with thumbnails
Log_OC.e(TAG, "Generation of thumbnail for " + mFile + " failed", t);
}
return thumbnail;
}
protected void onPostExecute(Bitmap bitmap) {
if (bitmap != null && mImageViewReference != null) {
final ImageView imageView = mImageViewReference.get();
final ThumbnailGenerationTask bitmapWorkerTask = getBitmapWorkerTask(imageView);
if (this == bitmapWorkerTask) {
String tagId = "";
if (mFile instanceof OCFile) {
tagId = String.valueOf(((OCFile)mFile).getFileId());
} else if (mFile instanceof File) {
tagId = String.valueOf(mFile.hashCode());
} else if (mFile instanceof TrashbinFile) {
tagId = String.valueOf(((TrashbinFile) mFile).getRemoteId());
}
if (String.valueOf(imageView.getTag()).equals(tagId)) {
imageView.setImageBitmap(bitmap);
}
}
}
if (mAsyncTasks != null) {
mAsyncTasks.remove(this);
}
}
private Bitmap doThumbnailFromOCFileInBackground() {
Bitmap thumbnail;
ServerFileInterface file = (ServerFileInterface) mFile;
String imageKey = PREFIX_THUMBNAIL + file.getRemoteId();
// Check disk cache in background thread
thumbnail = getBitmapFromDiskCache(imageKey);
// Not found in disk cache
if (thumbnail == null || (file instanceof OCFile && ((OCFile) file).isUpdateThumbnailNeeded())) {
int pxW;
int pxH;
pxW = pxH = getThumbnailDimension();
if (file instanceof OCFile) {
OCFile ocFile = (OCFile) file;
if (ocFile.isDown()) {
Bitmap bitmap;
if (MimeTypeUtil.isVideo(ocFile)) {
bitmap = ThumbnailUtils.createVideoThumbnail(ocFile.getStoragePath(),
MediaStore.Images.Thumbnails.MINI_KIND);
} else {
bitmap = BitmapUtils.decodeSampledBitmapFromFile(ocFile.getStoragePath(), pxW, pxH);
}
if (bitmap != null) {
// Handle PNG
if (PNG_MIMETYPE.equalsIgnoreCase(ocFile.getMimeType())) {
bitmap = handlePNG(bitmap, pxW, pxH);
}
thumbnail = addThumbnailToCache(imageKey, bitmap, ocFile.getStoragePath(), pxW, pxH);
ocFile.setUpdateThumbnailNeeded(false);
mStorageManager.saveFile(ocFile);
}
}
}
if (thumbnail == null) {
// check if resized version is available
String resizedImageKey = PREFIX_RESIZED_IMAGE + file.getRemoteId();
Bitmap resizedImage = getBitmapFromDiskCache(resizedImageKey);
if (resizedImage != null) {
thumbnail = ThumbnailUtils.extractThumbnail(resizedImage, pxW, pxH);
} else {
// Download thumbnail from server
if (mClient != null) {
getMethod = null;
try {
// thumbnail
String uri;
if (file instanceof OCFile) {
uri = mClient.getBaseUri() + "/index.php/apps/files/api/v1/thumbnail/" +
pxW + "/" + pxH + Uri.encode(file.getRemotePath(), "/");
} else {
uri = mClient.getBaseUri() + "/index.php/apps/files_trashbin/preview?fileId=" +
file.getLocalId() + "&x=" + pxW + "&y=" + pxH;
}
Log_OC.d(TAG, "generate thumbnail: " + file.getFileName() + " URI: " + uri);
getMethod = new GetMethod(uri);
getMethod.setRequestHeader("Cookie",
"nc_sameSiteCookielax=true;nc_sameSiteCookiestrict=true");
getMethod.setRequestHeader(RemoteOperation.OCS_API_HEADER,
RemoteOperation.OCS_API_HEADER_VALUE);
int status = mClient.executeMethod(getMethod);
if (status == HttpStatus.SC_OK) {
InputStream inputStream = getMethod.getResponseBodyAsStream();
Bitmap bitmap = BitmapFactory.decodeStream(inputStream);
thumbnail = ThumbnailUtils.extractThumbnail(bitmap, pxW, pxH);
} else {
mClient.exhaustResponse(getMethod.getResponseBodyAsStream());
}
// Handle PNG
if (PNG_MIMETYPE.equalsIgnoreCase(file.getMimeType())) {
thumbnail = handlePNG(thumbnail, pxW, pxH);
}
} catch (Exception e) {
Log_OC.d(TAG, e.getMessage(), e);
} finally {
if (getMethod != null) {
getMethod.releaseConnection();
}
}
}
}
// Add thumbnail to cache
if (thumbnail != null) {
Log_OC.d(TAG, "add thumbnail to cache: " + file.getFileName());
addBitmapToCache(imageKey, thumbnail);
}
}
}
return thumbnail;
}
/**
* Converts size of file icon from dp to pixel
*
* @return int
*/
private int getThumbnailDimension() {
// Converts dp to pixel
Resources r = MainApp.getAppContext().getResources();
Double d = Math.pow(2, Math.floor(Math.log(r.getDimension(R.dimen.file_icon_size_grid)) / Math.log(2)));
return d.intValue();
}
private Bitmap doFileInBackground() {
File file = (File)mFile;
final String imageKey;
if (mImageKey != null) {
imageKey = mImageKey;
} else {
imageKey = String.valueOf(file.hashCode());
}
// local file should always generate a thumbnail
mImageKey = PREFIX_THUMBNAIL + mImageKey;
// Check disk cache in background thread
Bitmap thumbnail = getBitmapFromDiskCache(imageKey);
// Not found in disk cache
if (thumbnail == null) {
int pxW;
int pxH;
pxW = pxH = getThumbnailDimension();
Bitmap bitmap = BitmapUtils.decodeSampledBitmapFromFile(file.getAbsolutePath(), pxW, pxH);
if (bitmap != null) {
thumbnail = addThumbnailToCache(imageKey, bitmap, file.getPath(), pxW, pxH);
}
}
return thumbnail;
}
}
public static class MediaThumbnailGenerationTask extends AsyncTask<Object, Void, Bitmap> {
private static final int IMAGE_KEY_PARAMS_LENGTH = 2;
private enum Type {IMAGE, VIDEO}
private final WeakReference<ImageView> mImageViewReference;
private File mFile;
private String mImageKey;
private Context mContext;
public MediaThumbnailGenerationTask(ImageView imageView, Context context) {
// Use a WeakReference to ensure the ImageView can be garbage collected
mImageViewReference = new WeakReference<>(imageView);
mContext = context;
}
@Override
protected Bitmap doInBackground(Object... params) {
Bitmap thumbnail = null;
try {
if (params[0] instanceof File) {
mFile = (File) params[0];
if (params.length == IMAGE_KEY_PARAMS_LENGTH) {
mImageKey = (String) params[1];
}
if (MimeTypeUtil.isImage(mFile)) {
thumbnail = doFileInBackground(mFile, Type.IMAGE);
} else if (MimeTypeUtil.isVideo(mFile)) {
thumbnail = doFileInBackground(mFile, Type.VIDEO);
}
}
} // the app should never break due to a problem with thumbnails
catch (OutOfMemoryError t) {
Log_OC.e(TAG, "Generation of thumbnail for " + mFile.getAbsolutePath() + " failed", t);
Log_OC.e(TAG, "Out of memory");
} catch (Throwable t) {
// the app should never break due to a problem with thumbnails
Log_OC.e(TAG, "Generation of thumbnail for " + mFile.getAbsolutePath() + " failed", t);
}
return thumbnail;
}
protected void onPostExecute(Bitmap bitmap) {
String tagId = "";
final ImageView imageView = mImageViewReference.get();
if (imageView != null) {
if (mFile != null) {
tagId = String.valueOf(mFile.hashCode());
}
if (bitmap != null) {
if (tagId.equals(String.valueOf(imageView.getTag()))) {
imageView.setImageBitmap(bitmap);
}
} else {
if (mFile != null) {
if (mFile.isDirectory()) {
imageView.setImageDrawable(MimeTypeUtil.getDefaultFolderIcon(mContext));
} else {
if (MimeTypeUtil.isVideo(mFile)) {
imageView.setImageBitmap(ThumbnailsCacheManager.mDefaultVideo);
} else {
imageView.setImageDrawable(MimeTypeUtil.getFileTypeIcon(null, mFile.getName(),
mContext));
}
}
}
}
}
}
private Bitmap doFileInBackground(File file, Type type) {
final String imageKey;
if (mImageKey != null) {
imageKey = mImageKey;
} else {
imageKey = String.valueOf(file.hashCode());
}
// Check disk cache in background thread
Bitmap thumbnail = getBitmapFromDiskCache(imageKey);
// Not found in disk cache
if (thumbnail == null) {
if (Type.IMAGE.equals(type)) {
int px = getThumbnailDimension();
Bitmap bitmap = BitmapUtils.decodeSampledBitmapFromFile(file.getAbsolutePath(), px, px);
if (bitmap != null) {
thumbnail = addThumbnailToCache(imageKey, bitmap, file.getPath(), px, px);
}
} else if (Type.VIDEO.equals(type)) {
MediaMetadataRetriever retriever = new MediaMetadataRetriever();
try {
retriever.setDataSource(file.getAbsolutePath());
thumbnail = retriever.getFrameAtTime(-1);
} catch (Exception ex) {
// can't create a bitmap
Log_OC.w(TAG, "Failed to create bitmap from video " + file.getAbsolutePath());
} finally {
try {
retriever.release();
} catch (RuntimeException ex) {
// Ignore failure at this point.
Log_OC.w(TAG, "Failed release MediaMetadataRetriever for " + file.getAbsolutePath());
}
}
if (thumbnail != null) {
// Scale down bitmap if too large.
int px = getThumbnailDimension();
int width = thumbnail.getWidth();
int height = thumbnail.getHeight();
int max = Math.max(width, height);
if (max > px) {
thumbnail = BitmapUtils.scaleBitmap(thumbnail, px, width, height, max);
thumbnail = addThumbnailToCache(imageKey, thumbnail, file.getPath(), px, px);
}
}
}
}
return thumbnail;
}
}
public static class AvatarGenerationTask extends AsyncTask<String, Void, Drawable> {
private final WeakReference<AvatarGenerationListener> mAvatarGenerationListener;
private final Object mCallContext;
private final Resources mResources;
private final float mAvatarRadius;
private Account mAccount;
private String mUserId;
private String mServerName;
private Context mContext;
public AvatarGenerationTask(AvatarGenerationListener avatarGenerationListener, Object callContext,
Account account, Resources resources, float avatarRadius, String userId,
String serverName, Context context) {
mAvatarGenerationListener = new WeakReference<>(avatarGenerationListener);
mCallContext = callContext;
mAccount = account;
mResources = resources;
mAvatarRadius = avatarRadius;
mUserId = userId;
mServerName = serverName;
mContext = context;
}
@SuppressFBWarnings("Dm")
@Override
protected Drawable doInBackground(String... params) {
Drawable thumbnail = null;
try {
if (mAccount != null) {
OwnCloudAccount ocAccount = new OwnCloudAccount(mAccount, mContext);
mClient = OwnCloudClientManagerFactory.getDefaultSingleton().getClientFor(ocAccount, mContext);
}
thumbnail = doAvatarInBackground();
} catch (OutOfMemoryError oome) {
Log_OC.e(TAG, "Out of memory");
} catch (Throwable t) {
// the app should never break due to a problem with avatars
Log_OC.e(TAG, "Generation of avatar for " + mUserId + " failed", t);
}
return thumbnail;
}
protected void onPostExecute(Drawable drawable) {
if (drawable != null) {
AvatarGenerationListener listener = mAvatarGenerationListener.get();
if (listener != null) {
AvatarGenerationTask avatarWorkerTask = getAvatarWorkerTask(mCallContext);
if (this == avatarWorkerTask && listener.shouldCallGeneratedCallback(mUserId, mCallContext)) {
listener.avatarGenerated(drawable, mCallContext);
}
}
}
}
/**
* Converts size of file icon from dp to pixel
*
* @return int
*/
private int getAvatarDimension() {
// Converts dp to pixel
Resources r = MainApp.getAppContext().getResources();
return Math.round(r.getDimension(R.dimen.file_avatar_size));
}
private @NotNull
Drawable doAvatarInBackground() {
Bitmap avatar;
String accountName = mUserId + "@" + mServerName;
ArbitraryDataProvider arbitraryDataProvider = new ArbitraryDataProvider(mContext.getContentResolver());
String eTag = arbitraryDataProvider.getValue(accountName, ThumbnailsCacheManager.AVATAR);
long timestamp = arbitraryDataProvider.getLongValue(accountName, ThumbnailsCacheManager.AVATAR_TIMESTAMP);
String avatarKey = "a_" + mUserId + "_" + mServerName + "_" + eTag;
avatar = getBitmapFromDiskCache(avatarKey);
// Download avatar from server, only if older than 60 min or avatar does not exist
if ((System.currentTimeMillis() - timestamp >= 60 * 60 * 1000 || avatar == null) && mClient != null) {
GetMethod get = null;
try {
int px = getAvatarDimension();
String uri = mClient.getBaseUri() + "/index.php/avatar/" + Uri.encode(mUserId) + "/" + px;
Log_OC.d("Avatar", "URI: " + uri);
get = new GetMethod(uri);
// only use eTag if available and corresponding avatar is still there
// (might be deleted from cache)
if (!eTag.isEmpty() && avatar != null) {
get.setRequestHeader("If-None-Match", eTag);
}
int status = mClient.executeMethod(get);
// we are using eTag to download a new avatar only if it changed
switch (status) {
case HttpStatus.SC_OK:
case HttpStatus.SC_CREATED:
// new avatar
InputStream inputStream = get.getResponseBodyAsStream();
String newETag = null;
if (get.getResponseHeader(ETAG) != null) {
newETag = get.getResponseHeader(ETAG).getValue().replace("\"", "");
arbitraryDataProvider.storeOrUpdateKeyValue(accountName, AVATAR, newETag);
}
Bitmap bitmap = BitmapFactory.decodeStream(inputStream);
avatar = ThumbnailUtils.extractThumbnail(bitmap, px, px);
// Add avatar to cache
if (avatar != null && !TextUtils.isEmpty(newETag)) {
avatar = handlePNG(avatar, px, px);
String newImageKey = "a_" + mUserId + "_" + mServerName + "_" + newETag;
addBitmapToCache(newImageKey, avatar);
arbitraryDataProvider.storeOrUpdateKeyValue(accountName,
ThumbnailsCacheManager.AVATAR_TIMESTAMP,
System.currentTimeMillis());
} else {
return TextDrawable.createAvatar(mAccount, mAvatarRadius);
}
break;
case HttpStatus.SC_NOT_MODIFIED:
// old avatar
mClient.exhaustResponse(get.getResponseBodyAsStream());
arbitraryDataProvider.storeOrUpdateKeyValue(accountName,
ThumbnailsCacheManager.AVATAR_TIMESTAMP,
System.currentTimeMillis());
break;
default:
// everything else
mClient.exhaustResponse(get.getResponseBodyAsStream());
break;
}
} catch (Exception e) {
try {
return TextDrawable.createAvatar(mAccount, mAvatarRadius);
} catch (Exception e1) {
Log_OC.e(TAG, "Error generating fallback avatar");
}
} finally {
if (get != null) {
get.releaseConnection();
}
}
}
if (avatar == null) {
try {
return TextDrawable.createAvatar(mAccount, mAvatarRadius);
} catch (Exception e1) {
return mResources.getDrawable(R.drawable.ic_user);
}
} else {
return BitmapUtils.bitmapToCircularBitmapDrawable(mResources, avatar);
}
}
}
public static boolean cancelPotentialThumbnailWork(Object file, ImageView imageView) {
final ThumbnailGenerationTask bitmapWorkerTask = getBitmapWorkerTask(imageView);
if (bitmapWorkerTask != null) {
final Object bitmapData = bitmapWorkerTask.mFile;
// If bitmapData is not yet set or it differs from the new data
if (bitmapData == null || !bitmapData.equals(file)) {
// Cancel previous task
bitmapWorkerTask.cancel(true);
Log_OC.v(TAG, "Cancelled generation of thumbnail for a reused imageView");
} else {
// The same work is already in progress
return false;
}
}
// No task associated with the ImageView, or an existing task was cancelled
return true;
}
public static boolean cancelPotentialAvatarWork(Object file, Object callContext) {
if (callContext instanceof ImageView) {
return cancelPotentialAvatarWork(file, (ImageView) callContext);
} else if (callContext instanceof MenuItem) {
return cancelPotentialAvatarWork(file, (MenuItem)callContext);
}
return false;
}
public static boolean cancelPotentialAvatarWork(Object file, ImageView imageView) {
final AvatarGenerationTask avatarWorkerTask = getAvatarWorkerTask(imageView);
if (avatarWorkerTask != null) {
final Object usernameData = avatarWorkerTask.mUserId;
// If usernameData is not yet set or it differs from the new data
if (usernameData == null || !usernameData.equals(file)) {
// Cancel previous task
avatarWorkerTask.cancel(true);
Log_OC.v(TAG, "Cancelled generation of avatar for a reused imageView");
} else {
// The same work is already in progress
return false;
}
}
// No task associated with the ImageView, or an existing task was cancelled
return true;
}
public static boolean cancelPotentialAvatarWork(Object file, MenuItem menuItem) {
final AvatarGenerationTask avatarWorkerTask = getAvatarWorkerTask(menuItem);
if (avatarWorkerTask != null) {
final Object usernameData = avatarWorkerTask.mUserId;
// If usernameData is not yet set or it differs from the new data
if (usernameData == null || !usernameData.equals(file)) {
// Cancel previous task
avatarWorkerTask.cancel(true);
Log_OC.v(TAG, "Cancelled generation of avatar for a reused imageView");
} else {
// The same work is already in progress
return false;
}
}
// No task associated with the ImageView, or an existing task was cancelled
return true;
}
public static ThumbnailGenerationTask getBitmapWorkerTask(ImageView imageView) {
if (imageView != null) {
final Drawable drawable = imageView.getDrawable();
if (drawable instanceof AsyncThumbnailDrawable) {
final AsyncThumbnailDrawable asyncDrawable = (AsyncThumbnailDrawable) drawable;
return asyncDrawable.getBitmapWorkerTask();
}
}
return null;
}
private static ResizedImageGenerationTask getResizedImageGenerationWorkerTask(ImageView imageView) {
if (imageView != null) {
final Drawable drawable = imageView.getDrawable();
if (drawable instanceof AsyncResizedImageDrawable) {
final AsyncResizedImageDrawable asyncDrawable = (AsyncResizedImageDrawable) drawable;
return asyncDrawable.getBitmapWorkerTask();
}
}
return null;
}
public static Bitmap addVideoOverlay(Bitmap thumbnail){
Drawable playButtonDrawable = MainApp.getAppContext().getResources().getDrawable(R.drawable.view_play);
Bitmap playButton = BitmapUtils.drawableToBitmap(playButtonDrawable);
Bitmap resizedPlayButton = Bitmap.createScaledBitmap(playButton,
(int) (thumbnail.getWidth() * 0.3),
(int) (thumbnail.getHeight() * 0.3), true);
Bitmap resultBitmap = Bitmap.createBitmap(thumbnail.getWidth(),
thumbnail.getHeight(),
Bitmap.Config.ARGB_8888);
Canvas c = new Canvas(resultBitmap);
// compute visual center of play button, according to resized image
int x1 = resizedPlayButton.getWidth();
int y1 = resizedPlayButton.getHeight() / 2;
int x2 = 0;
int y2 = resizedPlayButton.getWidth();
int x3 = 0;
int y3 = 0;
double ym = ( ((Math.pow(x3,2) - Math.pow(x1,2) + Math.pow(y3,2) - Math.pow(y1,2)) *
(x2 - x1)) - (Math.pow(x2,2) - Math.pow(x1,2) + Math.pow(y2,2) -
Math.pow(y1,2)) * (x3 - x1) ) / (2 * ( ((y3 - y1) * (x2 - x1)) -
((y2 - y1) * (x3 - x1)) ));
double xm = ( (Math.pow(x2,2) - Math.pow(x1,2)) + (Math.pow(y2,2) - Math.pow(y1,2)) -
(2*ym*(y2 - y1)) ) / (2*(x2 - x1));
// offset to top left
double ox = - xm;
c.drawBitmap(thumbnail, 0, 0, null);
Paint p = new Paint();
p.setAlpha(230);
c.drawBitmap(resizedPlayButton, (float) ((thumbnail.getWidth() / 2) + ox),
(float) ((thumbnail.getHeight() / 2) - ym), p);
return resultBitmap;
}
public static AvatarGenerationTask getAvatarWorkerTask(Object callContext) {
if (callContext instanceof ImageView) {
return getAvatarWorkerTask(((ImageView)callContext).getDrawable());
} else if (callContext instanceof MenuItem) {
return getAvatarWorkerTask(((MenuItem)callContext).getIcon());
}
return null;
}
private static AvatarGenerationTask getAvatarWorkerTask(Drawable drawable) {
if (drawable instanceof AsyncAvatarDrawable) {
final AsyncAvatarDrawable asyncDrawable = (AsyncAvatarDrawable) drawable;
return asyncDrawable.getAvatarWorkerTask();
}
return null;
}
public static class AsyncThumbnailDrawable extends BitmapDrawable {
private final WeakReference<ThumbnailGenerationTask> bitmapWorkerTaskReference;
public AsyncThumbnailDrawable(
Resources res, Bitmap bitmap, ThumbnailGenerationTask bitmapWorkerTask
) {
super(res, bitmap);
bitmapWorkerTaskReference = new WeakReference<>(bitmapWorkerTask);
}
public ThumbnailGenerationTask getBitmapWorkerTask() {
return bitmapWorkerTaskReference.get();
}
}
public static class AsyncResizedImageDrawable extends BitmapDrawable {
private final WeakReference<ResizedImageGenerationTask> bitmapWorkerTaskReference;
public AsyncResizedImageDrawable(Resources res, Bitmap bitmap, ResizedImageGenerationTask bitmapWorkerTask) {
super(res, bitmap);
bitmapWorkerTaskReference = new WeakReference<>(bitmapWorkerTask);
}
private ResizedImageGenerationTask getBitmapWorkerTask() {
return bitmapWorkerTaskReference.get();
}
}
public static class AsyncMediaThumbnailDrawable extends BitmapDrawable {
private final WeakReference<MediaThumbnailGenerationTask> bitmapWorkerTaskReference;
public AsyncMediaThumbnailDrawable(Resources res, Bitmap bitmap,
MediaThumbnailGenerationTask bitmapWorkerTask) {
super(res, bitmap);
bitmapWorkerTaskReference = new WeakReference<>(bitmapWorkerTask);
}
}
public static class AsyncAvatarDrawable extends BitmapDrawable {
private final WeakReference<AvatarGenerationTask> avatarWorkerTaskReference;
public AsyncAvatarDrawable(Resources res, Drawable bitmap, AvatarGenerationTask avatarWorkerTask) {
super(res, BitmapUtils.drawableToBitmap(bitmap));
avatarWorkerTaskReference = new WeakReference<>(avatarWorkerTask);
}
public AvatarGenerationTask getAvatarWorkerTask() {
return avatarWorkerTaskReference.get();
}
}
private static Bitmap handlePNG(Bitmap bitmap, int pxW, int pxH) {
Bitmap resultBitmap = Bitmap.createBitmap(pxW, pxH, Bitmap.Config.ARGB_8888);
Canvas c = new Canvas(resultBitmap);
// TODO check based on https://github.com/nextcloud/android/pull/3459#discussion_r339935975
c.drawColor(MainApp.getAppContext().getResources().getColor(R.color.background_color_png));
c.drawBitmap(bitmap, 0, 0, null);
return resultBitmap;
}
public static void generateResizedImage(OCFile file) {
Point p = getScreenDimension();
int pxW = p.x;
int pxH = p.y;
String imageKey = PREFIX_RESIZED_IMAGE + file.getRemoteId();
Bitmap bitmap = BitmapUtils.decodeSampledBitmapFromFile(file.getStoragePath(), pxW, pxH);
if (bitmap != null) {
// Handle PNG
if (PNG_MIMETYPE.equalsIgnoreCase(file.getMimeType())) {
bitmap = handlePNG(bitmap, pxW, pxH);
}
addThumbnailToCache(imageKey, bitmap, file.getStoragePath(), pxW, pxH);
}
}
public static void generateThumbnailFromOCFile(OCFile file) {
int pxW;
int pxH;
pxW = pxH = getThumbnailDimension();
String imageKey = PREFIX_THUMBNAIL + file.getRemoteId();
GetMethod getMethod = null;
try {
Bitmap thumbnail = null;
String uri = mClient.getBaseUri() + "/index.php/apps/files/api/v1/thumbnail/" +
pxW + "/" + pxH + Uri.encode(file.getRemotePath(), "/");
Log_OC.d(TAG, "generate thumbnail: " + file.getFileName() + " URI: " + uri);
getMethod = new GetMethod(uri);
getMethod.setRequestHeader("Cookie", "nc_sameSiteCookielax=true;nc_sameSiteCookiestrict=true");
getMethod.setRequestHeader(RemoteOperation.OCS_API_HEADER,
RemoteOperation.OCS_API_HEADER_VALUE);
int status = mClient.executeMethod(getMethod);
if (status == HttpStatus.SC_OK) {
InputStream inputStream = getMethod.getResponseBodyAsStream();
Bitmap bitmap = BitmapFactory.decodeStream(inputStream);
thumbnail = ThumbnailUtils.extractThumbnail(bitmap, pxW, pxH);
} else {
mClient.exhaustResponse(getMethod.getResponseBodyAsStream());
}
// Add thumbnail to cache
if (thumbnail != null) {
// Handle PNG
if (PNG_MIMETYPE.equalsIgnoreCase(file.getMimeType())) {
thumbnail = handlePNG(thumbnail, pxW, pxH);
}
Log_OC.d(TAG, "add thumbnail to cache: " + file.getFileName());
addBitmapToCache(imageKey, thumbnail);
}
} catch (Exception e) {
Log_OC.d(TAG, e.getMessage(), e);
} finally {
if (getMethod != null) {
getMethod.releaseConnection();
}
}
}
}