mirror of
https://github.com/M66B/FairEmail.git
synced 2026-03-30 21:58:52 +02:00
Refactoring
This commit is contained in:
M66B
453
app/src/main/java/eu/faircode/email/AdapterMedia.java
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453
app/src/main/java/eu/faircode/email/AdapterMedia.java
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package eu.faircode.email;
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/*
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This file is part of FairEmail.
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FairEmail is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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FairEmail is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with FairEmail. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2018-2024 by Marcel Bokhorst (M66B)
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*/
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import android.content.Context;
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import android.content.SharedPreferences;
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import android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import android.graphics.Canvas;
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import android.graphics.Color;
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import android.graphics.drawable.BitmapDrawable;
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import android.graphics.drawable.Drawable;
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import android.graphics.pdf.PdfRenderer;
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import android.os.Build;
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import android.os.Bundle;
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import android.os.ParcelFileDescriptor;
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import android.text.TextUtils;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.ImageView;
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import android.widget.TextView;
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import androidx.annotation.NonNull;
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import androidx.fragment.app.Fragment;
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import androidx.lifecycle.Lifecycle;
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import androidx.lifecycle.LifecycleObserver;
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import androidx.lifecycle.LifecycleOwner;
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import androidx.lifecycle.OnLifecycleEvent;
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import androidx.preference.PreferenceManager;
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import androidx.recyclerview.widget.DiffUtil;
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import androidx.recyclerview.widget.ListUpdateCallback;
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import androidx.recyclerview.widget.RecyclerView;
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import java.io.File;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.Comparator;
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import java.util.List;
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public class AdapterMedia extends RecyclerView.Adapter<AdapterMedia.ViewHolder> {
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private Fragment parentFragment;
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private final Context context;
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private final LayoutInflater inflater;
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private final LifecycleOwner owner;
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private List<EntityAttachment> items = new ArrayList<>();
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private static final int PDF_WIDTH = 120;
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public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener, View.OnLongClickListener {
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private final View view;
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private final ImageView ivImage;
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private final TextView tvCaption;
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private final TextView tvProperties;
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ViewHolder(View itemView) {
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super(itemView);
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view = itemView.findViewById(R.id.clItem);
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ivImage = itemView.findViewById(R.id.ivImage);
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tvCaption = itemView.findViewById(R.id.tvCaption);
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tvProperties = itemView.findViewById(R.id.tvProperties);
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}
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private void wire() {
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view.setOnClickListener(this);
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view.setOnLongClickListener(this);
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}
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private void unwire() {
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view.setOnClickListener(null);
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view.setOnLongClickListener(null);
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}
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private void bindTo(EntityAttachment attachment) {
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tvCaption.setText(attachment.name);
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tvCaption.setVisibility(TextUtils.isEmpty(attachment.name) ? View.GONE : View.VISIBLE);
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tvProperties.setVisibility(View.GONE);
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if (attachment.available) {
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Bundle args = new Bundle();
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args.putSerializable("file", attachment.getFile(context));
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args.putString("type", attachment.getMimeType());
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args.putInt("max", context.getResources().getDisplayMetrics().widthPixels);
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new SimpleTask<Drawable>() {
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@Override
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protected void onPreExecute(Bundle args) {
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ivImage.setImageResource(R.drawable.twotone_hourglass_top_24);
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}
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@Override
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protected Drawable onExecute(Context context, Bundle args) throws Throwable {
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File file = (File) args.getSerializable("file");
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String type = args.getString("type");
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int max = args.getInt("max");
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if ("application/pdf".equals(type)) {
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// https://developer.android.com/reference/android/graphics/pdf/PdfRenderer
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try (ParcelFileDescriptor pfd = ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY)) {
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try (PdfRenderer pdf = new PdfRenderer(pfd)) {
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try (PdfRenderer.Page page = pdf.openPage(0)) {
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int width = Helper.dp2pixels(context, PDF_WIDTH);
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int height = (int) ((float) width / page.getWidth() * page.getHeight());
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Bitmap bm = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
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Canvas canvas = new Canvas(bm);
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canvas.drawColor(Color.WHITE);
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page.render(bm, null, null, PdfRenderer.Page.RENDER_MODE_FOR_DISPLAY);
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return new BitmapDrawable(context.getResources(), bm);
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}
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}
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} catch (Throwable ex) {
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Log.w(ex);
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return null;
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}
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} else {
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SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
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boolean webp = prefs.getBoolean("webp", true);
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if ("image/webp".equalsIgnoreCase(type) && !webp) {
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args.putBoolean("nowebp", true);
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return null;
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}
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args.putLong("size", file.length());
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try {
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BitmapFactory.Options options = new BitmapFactory.Options();
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options.inJustDecodeBounds = true;
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BitmapFactory.decodeFile(file.getAbsolutePath(), options);
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args.putInt("width", options.outWidth);
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args.putInt("height", options.outHeight);
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
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if (options.outColorSpace != null)
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args.putString("color", options.outColorSpace.getModel().name());
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if (options.outConfig != null)
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args.putString("config", options.outConfig.name());
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}
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} catch (Throwable ex) {
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Log.w(ex);
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}
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P &&
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!"image/svg+xml".equals(type) &&
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!"svg".equals(Helper.getExtension(file.getName())))
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try {
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return ImageHelper.getScaledDrawable(context, file, type, max);
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} catch (Throwable ex) {
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Log.w(ex);
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}
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Bitmap bm = ImageHelper.decodeImage(file, type, max);
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if (bm == null)
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return null;
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return new BitmapDrawable(context.getResources(), bm);
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}
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}
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@Override
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protected void onExecuted(Bundle args, Drawable image) {
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if (image == null)
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if (args.getBoolean("nowebp"))
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ivImage.setImageResource(R.drawable.twotone_warning_24);
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else
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ivImage.setImageResource(R.drawable.twotone_broken_image_24);
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else
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ivImage.setImageDrawable(image);
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ImageHelper.animate(context, image);
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StringBuilder sb = new StringBuilder();
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int width = args.getInt("width");
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int height = args.getInt("height");
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if (width > 0 && height > 0)
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sb.append(width)
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.append("\u00d7") // ×
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.append(height);
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if (BuildConfig.DEBUG) {
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String color = args.getString("color");
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if (color != null) {
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if (sb.length() > 0)
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sb.append(' ');
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sb.append(color);
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}
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String config = args.getString("config");
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if (config != null) {
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if (sb.length() > 0)
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sb.append(' ');
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sb.append(config);
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}
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}
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long size = args.getLong("size");
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if (size > 0) {
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if (sb.length() > 0)
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sb.append(" \u2013 "); // –
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sb.append(Helper.humanReadableByteCount(size));
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}
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if (sb.length() > 0) {
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tvProperties.setText(sb);
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tvProperties.setVisibility(View.VISIBLE);
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}
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}
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@Override
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protected void onException(Bundle args, Throwable ex) {
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tvCaption.setText(Log.formatThrowable(ex));
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tvCaption.setVisibility(View.VISIBLE);
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ivImage.setImageResource(R.drawable.twotone_broken_image_24);
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}
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}.execute(context, owner, args, "image:load");
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} else
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ivImage.setImageResource(attachment.progress == null
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? R.drawable.twotone_image_24 : R.drawable.twotone_hourglass_top_24);
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}
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@Override
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public void onClick(View view) {
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int pos = getAdapterPosition();
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if (pos == RecyclerView.NO_POSITION)
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return;
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EntityAttachment attachment = items.get(pos);
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if (attachment.available)
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try {
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Helper.share(context, attachment.getFile(context), attachment.getMimeType(), attachment.name);
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} catch (Throwable ex) {
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Log.unexpectedError(parentFragment.getParentFragmentManager(), ex);
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}
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else {
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if (attachment.progress == null) {
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Bundle args = new Bundle();
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args.putLong("id", attachment.id);
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args.putLong("message", attachment.message);
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new SimpleTask<Void>() {
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@Override
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protected Void onExecute(Context context, Bundle args) {
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long id = args.getLong("id");
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long mid = args.getLong("message");
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Long reload = null;
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DB db = DB.getInstance(context);
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try {
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db.beginTransaction();
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EntityMessage message = db.message().getMessage(mid);
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if (message == null)
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return null;
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EntityAccount account = db.account().getAccount(message.account);
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if (account == null)
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return null;
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if (account.protocol == EntityAccount.TYPE_IMAP && message.uid == null)
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return null;
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if (!"connected".equals(account.state) && !account.isTransient(context))
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reload = account.id;
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EntityAttachment attachment = db.attachment().getAttachment(id);
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if (attachment == null || attachment.progress != null || attachment.available)
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return null;
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EntityOperation.queue(context, message, EntityOperation.ATTACHMENT, id);
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db.setTransactionSuccessful();
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} finally {
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db.endTransaction();
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}
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if (reload == null)
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ServiceSynchronize.eval(context, "media");
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else
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ServiceSynchronize.reload(context, reload, false, "media");
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return null;
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}
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@Override
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protected void onException(Bundle args, Throwable ex) {
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Log.unexpectedError(parentFragment.getParentFragmentManager(), ex);
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}
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}.execute(context, owner, args, "media:fetch");
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}
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}
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}
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@Override
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public boolean onLongClick(View v) {
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int pos = getAdapterPosition();
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if (pos == RecyclerView.NO_POSITION)
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return false;
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EntityAttachment attachment = items.get(pos);
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if (!attachment.available)
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return false;
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((FragmentBase) parentFragment).onStoreAttachment(attachment);
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return true;
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}
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}
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AdapterMedia(Fragment parentFragment) {
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this.parentFragment = parentFragment;
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this.context = parentFragment.getContext();
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this.owner = parentFragment.getViewLifecycleOwner();
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this.inflater = LayoutInflater.from(context);
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setHasStableIds(true);
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owner.getLifecycle().addObserver(new LifecycleObserver() {
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@OnLifecycleEvent(Lifecycle.Event.ON_DESTROY)
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public void onDestroyed() {
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Log.d(AdapterMedia.this + " parent destroyed");
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AdapterMedia.this.parentFragment = null;
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owner.getLifecycle().removeObserver(this);
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}
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});
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}
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public void set(@NonNull List<EntityAttachment> attachments) {
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Log.i("Set media=" + attachments.size());
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Collections.sort(attachments, new Comparator<EntityAttachment>() {
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@Override
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public int compare(EntityAttachment a1, EntityAttachment a2) {
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return a1.sequence.compareTo(a2.sequence);
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}
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});
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DiffUtil.DiffResult diff = DiffUtil.calculateDiff(new DiffCallback(items, attachments), false);
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items = attachments;
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diff.dispatchUpdatesTo(new ListUpdateCallback() {
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@Override
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public void onInserted(int position, int count) {
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Log.d("Inserted @" + position + " #" + count);
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}
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@Override
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public void onRemoved(int position, int count) {
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Log.d("Removed @" + position + " #" + count);
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}
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@Override
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public void onMoved(int fromPosition, int toPosition) {
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Log.d("Moved " + fromPosition + ">" + toPosition);
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}
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@Override
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public void onChanged(int position, int count, Object payload) {
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Log.d("Changed @" + position + " #" + count);
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}
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});
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try {
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diff.dispatchUpdatesTo(this);
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} catch (Throwable ex) {
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Log.e(ex);
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}
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}
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private static class DiffCallback extends DiffUtil.Callback {
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private final List<EntityAttachment> prev = new ArrayList<>();
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private final List<EntityAttachment> next = new ArrayList<>();
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DiffCallback(List<EntityAttachment> prev, List<EntityAttachment> next) {
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this.prev.addAll(prev);
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this.next.addAll(next);
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}
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@Override
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public int getOldListSize() {
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return prev.size();
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}
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@Override
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public int getNewListSize() {
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return next.size();
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}
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@Override
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public boolean areItemsTheSame(int oldItemPosition, int newItemPosition) {
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EntityAttachment a1 = prev.get(oldItemPosition);
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EntityAttachment a2 = next.get(newItemPosition);
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return a1.id.equals(a2.id);
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}
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@Override
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public boolean areContentsTheSame(int oldItemPosition, int newItemPosition) {
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EntityAttachment a1 = prev.get(oldItemPosition);
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EntityAttachment a2 = next.get(newItemPosition);
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return a1.equals(a2);
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}
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}
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@Override
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public long getItemId(int position) {
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return items.get(position).id;
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}
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@Override
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public int getItemCount() {
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return items.size();
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}
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@Override
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@NonNull
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public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
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return new ViewHolder(inflater.inflate(R.layout.item_media, parent, false));
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}
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@Override
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public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
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holder.unwire();
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EntityAttachment attachment = items.get(position);
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holder.bindTo(attachment);
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holder.wire();
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}
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@Override
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public void onViewRecycled(@NonNull AdapterMedia.ViewHolder holder) {
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holder.ivImage.setImageDrawable(null);
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}
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}
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Reference in New Issue
Block a user