247 lines
9.5 KiB
Java
247 lines
9.5 KiB
Java
package eu.siacs.conversations.ui.adapter;
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import android.content.Context;
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import android.content.res.Resources;
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import android.graphics.Bitmap;
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import android.graphics.drawable.BitmapDrawable;
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import android.graphics.drawable.Drawable;
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import android.os.AsyncTask;
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import android.util.Log;
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import android.view.LayoutInflater;
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import android.view.ViewGroup;
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import android.widget.ImageView;
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import androidx.annotation.AttrRes;
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import androidx.annotation.DimenRes;
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import androidx.annotation.NonNull;
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import androidx.databinding.DataBindingUtil;
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import androidx.recyclerview.widget.RecyclerView;
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import java.lang.ref.WeakReference;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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import java.util.concurrent.RejectedExecutionException;
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import eu.siacs.conversations.Config;
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import eu.siacs.conversations.R;
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import eu.siacs.conversations.databinding.MediaBinding;
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import eu.siacs.conversations.services.ExportBackupService;
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import eu.siacs.conversations.ui.XmppActivity;
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import eu.siacs.conversations.ui.util.Attachment;
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import eu.siacs.conversations.ui.util.StyledAttributes;
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import eu.siacs.conversations.ui.util.ViewUtil;
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public class MediaAdapter extends RecyclerView.Adapter<MediaAdapter.MediaViewHolder> {
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public static final List<String> DOCUMENT_MIMES = Arrays.asList(
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"application/pdf",
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"application/vnd.oasis.opendocument.text",
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"application/msword",
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"application/vnd.openxmlformats-officedocument.wordprocessingml.document",
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"text/x-tex",
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"text/plain"
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);
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private final ArrayList<Attachment> attachments = new ArrayList<>();
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private final XmppActivity activity;
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private int mediaSize = 0;
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public MediaAdapter(XmppActivity activity, @DimenRes int mediaSize) {
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this.activity = activity;
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this.mediaSize = Math.round(activity.getResources().getDimension(mediaSize));
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}
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@SuppressWarnings("rawtypes")
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public static void setMediaSize(RecyclerView recyclerView, int mediaSize) {
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final RecyclerView.Adapter adapter = recyclerView.getAdapter();
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if (adapter instanceof MediaAdapter) {
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((MediaAdapter) adapter).setMediaSize(mediaSize);
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}
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}
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private static @AttrRes
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int getImageAttr(Attachment attachment) {
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final @AttrRes int attr;
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if (attachment.getType() == Attachment.Type.LOCATION) {
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attr = R.attr.media_preview_location;
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} else if (attachment.getType() == Attachment.Type.RECORDING) {
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attr = R.attr.media_preview_recording;
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} else {
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final String mime = attachment.getMime();
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Log.d(Config.LOGTAG, "mime=" + mime);
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if (mime == null) {
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attr = R.attr.media_preview_unknown;
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} else if (mime.startsWith("audio/")) {
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attr = R.attr.media_preview_audio;
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} else if (mime.equals("text/calendar") || (mime.equals("text/x-vcalendar"))) {
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attr = R.attr.media_preview_calendar;
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} else if (mime.equals("text/x-vcard")) {
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attr = R.attr.media_preview_contact;
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} else if (mime.equals("application/vnd.android.package-archive")) {
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attr = R.attr.media_preview_app;
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} else if (mime.equals("application/zip") || mime.equals("application/rar")) {
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attr = R.attr.media_preview_archive;
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} else if (mime.equals("application/epub+zip") || mime.equals("application/vnd.amazon.mobi8-ebook")) {
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attr = R.attr.media_preview_ebook;
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} else if (mime.equals(ExportBackupService.MIME_TYPE)) {
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attr = R.attr.media_preview_backup;
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} else if (DOCUMENT_MIMES.contains(mime)) {
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attr = R.attr.media_preview_document;
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} else if (mime.equals("application/gpx+xml")) {
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attr = R.attr.media_preview_tour;
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} else if (mime.startsWith("image/")) {
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attr = R.attr.media_preview_image;
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} else {
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attr = R.attr.media_preview_unknown;
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}
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}
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return attr;
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}
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static void renderPreview(Context context, Attachment attachment, ImageView imageView) {
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imageView.setBackgroundColor(StyledAttributes.getColor(context, R.attr.color_background_tertiary));
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imageView.setImageAlpha(Math.round(StyledAttributes.getFloat(context, R.attr.icon_alpha) * 255));
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imageView.setImageDrawable(StyledAttributes.getDrawable(context, getImageAttr(attachment)));
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}
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private static boolean cancelPotentialWork(Attachment attachment, ImageView imageView) {
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final BitmapWorkerTask bitmapWorkerTask = getBitmapWorkerTask(imageView);
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if (bitmapWorkerTask != null) {
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final Attachment oldAttachment = bitmapWorkerTask.attachment;
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if (oldAttachment == null || !oldAttachment.equals(attachment)) {
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bitmapWorkerTask.cancel(true);
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} else {
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return false;
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}
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}
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return true;
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}
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private static BitmapWorkerTask getBitmapWorkerTask(ImageView imageView) {
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if (imageView != null) {
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final Drawable drawable = imageView.getDrawable();
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if (drawable instanceof AsyncDrawable) {
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final AsyncDrawable asyncDrawable = (AsyncDrawable) drawable;
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return asyncDrawable.getBitmapWorkerTask();
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}
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}
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return null;
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}
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@NonNull
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@Override
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public MediaViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
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LayoutInflater layoutInflater = LayoutInflater.from(parent.getContext());
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MediaBinding binding = DataBindingUtil.inflate(layoutInflater, R.layout.media, parent, false);
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return new MediaViewHolder(binding);
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}
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@Override
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public void onBindViewHolder(@NonNull MediaViewHolder holder, int position) {
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final Attachment attachment = attachments.get(position);
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if (attachment.renderThumbnail()) {
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holder.binding.media.setImageAlpha(255);
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loadPreview(attachment, holder.binding.media);
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} else {
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cancelPotentialWork(attachment, holder.binding.media);
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renderPreview(activity, attachment, holder.binding.media);
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}
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holder.binding.getRoot().setOnClickListener(v -> ViewUtil.view(activity, attachment));
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}
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public void setAttachments(List<Attachment> attachments) {
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this.attachments.clear();
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this.attachments.addAll(attachments);
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notifyDataSetChanged();
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}
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private void setMediaSize(int mediaSize) {
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this.mediaSize = mediaSize;
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}
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private void loadPreview(Attachment attachment, ImageView imageView) {
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if (cancelPotentialWork(attachment, imageView)) {
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final Bitmap bm = activity.xmppConnectionService.getFileBackend().getPreviewForUri(attachment, mediaSize, true);
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if (bm != null) {
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cancelPotentialWork(attachment, imageView);
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imageView.setImageBitmap(bm);
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imageView.setBackgroundColor(0x00000000);
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} else {
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imageView.setBackgroundColor(0xff333333);
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imageView.setImageDrawable(null);
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final BitmapWorkerTask task = new BitmapWorkerTask(mediaSize, imageView);
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final AsyncDrawable asyncDrawable = new AsyncDrawable(activity.getResources(), null, task);
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imageView.setImageDrawable(asyncDrawable);
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try {
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task.execute(attachment);
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} catch (final RejectedExecutionException ignored) {
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}
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}
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}
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}
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@Override
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public int getItemCount() {
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return attachments.size();
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}
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static class AsyncDrawable extends BitmapDrawable {
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private final WeakReference<BitmapWorkerTask> bitmapWorkerTaskReference;
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AsyncDrawable(Resources res, Bitmap bitmap, BitmapWorkerTask bitmapWorkerTask) {
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super(res, bitmap);
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bitmapWorkerTaskReference = new WeakReference<>(bitmapWorkerTask);
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}
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BitmapWorkerTask getBitmapWorkerTask() {
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return bitmapWorkerTaskReference.get();
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}
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}
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class MediaViewHolder extends RecyclerView.ViewHolder {
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private final MediaBinding binding;
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MediaViewHolder(MediaBinding binding) {
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super(binding.getRoot());
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this.binding = binding;
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}
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}
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private static class BitmapWorkerTask extends AsyncTask<Attachment, Void, Bitmap> {
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private final WeakReference<ImageView> imageViewReference;
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private Attachment attachment = null;
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private final int mediaSize;
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BitmapWorkerTask(int mediaSize, ImageView imageView) {
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this.mediaSize = mediaSize;
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imageViewReference = new WeakReference<>(imageView);
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}
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@Override
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protected Bitmap doInBackground(Attachment... params) {
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this.attachment = params[0];
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final XmppActivity activity = XmppActivity.find(imageViewReference);
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if (activity == null) {
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return null;
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}
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return activity.xmppConnectionService.getFileBackend().getPreviewForUri(this.attachment, mediaSize, false);
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}
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@Override
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protected void onPostExecute(Bitmap bitmap) {
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if (bitmap != null && !isCancelled()) {
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final ImageView imageView = imageViewReference.get();
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if (imageView != null) {
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imageView.setImageBitmap(bitmap);
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imageView.setBackgroundColor(0x00000000);
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}
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}
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}
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}
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}
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