mirror of https://github.com/M66B/FairEmail.git
M66B
6 years ago
parent
4f0d9a15c1
commit
c49be8bd69
@ -1,247 +0,0 @@
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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 2018-2019 by Marcel Bokhorst (M66B)
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*/
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import android.content.Context;
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import android.content.Intent;
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import android.content.pm.PackageManager;
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import android.net.Uri;
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import android.os.Bundle;
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import android.util.Base64;
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import android.view.ContextMenu;
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import android.view.LayoutInflater;
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import android.view.Menu;
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import android.view.MenuItem;
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import android.view.View;
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import android.view.ViewGroup;
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import android.webkit.DownloadListener;
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import android.webkit.WebChromeClient;
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import android.webkit.WebSettings;
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import android.webkit.WebView;
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import android.webkit.WebViewClient;
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import android.widget.ProgressBar;
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import android.widget.Toast;
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import org.jsoup.Jsoup;
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import org.jsoup.nodes.Document;
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import org.jsoup.nodes.Element;
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import java.io.BufferedInputStream;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import androidx.lifecycle.Lifecycle;
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// https://developer.android.com/reference/android/webkit/WebView
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public class FragmentWebView extends FragmentBase {
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private ProgressBar progressBar;
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private WebView webview;
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@Override
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@Nullable
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public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
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View view = inflater.inflate(R.layout.fragment_webview, container, false);
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progressBar = view.findViewById(R.id.progressbar);
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webview = view.findViewById(R.id.webview);
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progressBar.setProgress(0);
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progressBar.setVisibility(View.VISIBLE);
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WebSettings settings = webview.getSettings();
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settings.setJavaScriptEnabled(true);
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settings.setUseWideViewPort(true);
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settings.setLoadWithOverviewMode(true);
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settings.setBuiltInZoomControls(true);
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settings.setDisplayZoomControls(false);
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settings.setMixedContentMode(WebSettings.MIXED_CONTENT_ALWAYS_ALLOW);
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webview.setWebViewClient(new WebViewClient() {
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public boolean shouldOverrideUrlLoading(WebView view, String url) {
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if (getViewLifecycleOwner().getLifecycle().getCurrentState().isAtLeast(Lifecycle.State.RESUMED)) {
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Helper.view(getContext(), getViewLifecycleOwner(), Uri.parse(url), true);
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return true;
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}
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return false;
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}
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});
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webview.setWebChromeClient(new WebChromeClient() {
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public void onProgressChanged(WebView view, int progress) {
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progressBar.setProgress(progress);
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if (progress == 100)
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progressBar.setVisibility(View.GONE);
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}
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});
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webview.setDownloadListener(new DownloadListener() {
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public void onDownloadStart(
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String url, String userAgent, String contentDisposition, String mimetype, long contentLength) {
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Log.i("Download url=" + url + " mime type=" + mimetype);
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Uri uri = Uri.parse(url);
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Intent intent = new Intent(Intent.ACTION_VIEW);
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intent.setData(uri);
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PackageManager pm = getContext().getPackageManager();
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if (intent.resolveActivity(pm) == null)
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Toast.makeText(getContext(), getString(R.string.title_no_viewer, uri.toString()), Toast.LENGTH_LONG).show();
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else
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startActivity(intent);
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}
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});
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registerForContextMenu(webview);
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onLoad();
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((ActivityBase) getActivity()).addBackPressedListener(onBackPressedListener);
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return view;
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}
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private void onLoad() {
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Bundle args = getArguments();
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if (args.containsKey("url")) {
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String url = args.getString("url");
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webview.loadUrl(url);
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setSubtitle(url);
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} else if (args.containsKey("id")) {
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new SimpleTask<String>() {
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@Override
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protected String onExecute(Context context, Bundle args) throws Throwable {
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long id = args.getLong("id");
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String html = Helper.readText(EntityMessage.getFile(context, id));
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Document doc = Jsoup.parse(html);
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for (Element img : doc.select("img"))
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try {
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String src = img.attr("src");
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if (src.startsWith("cid")) {
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String[] cids = src.split(":");
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if (cids.length > 1) {
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String cid = "<" + cids[1] + ">";
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EntityAttachment attachment = DB.getInstance(context).attachment().getAttachment(id, cid);
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if (attachment != null && attachment.available) {
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InputStream is = null;
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try {
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File file = EntityAttachment.getFile(context, attachment.id);
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is = new BufferedInputStream(new FileInputStream(file));
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byte[] bytes = new byte[(int) file.length()];
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if (is.read(bytes) != bytes.length)
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throw new IOException("length");
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StringBuilder sb = new StringBuilder();
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sb.append("data:");
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sb.append(attachment.type);
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sb.append(";base64,");
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sb.append(Base64.encodeToString(bytes, Base64.DEFAULT));
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img.attr("src", sb.toString());
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} finally {
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if (is != null)
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is.close();
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}
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}
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}
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}
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} catch (Throwable ex) {
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Log.e(ex);
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}
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return doc.html();
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}
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@Override
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protected void onExecuted(Bundle args, String html) {
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String from = args.getString("from");
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webview.loadDataWithBaseURL("email://", html, "text/html", "UTF-8", null);
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setSubtitle(from);
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}
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@Override
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protected void onException(Bundle args, Throwable ex) {
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Helper.unexpectedError(getContext(), getViewLifecycleOwner(), ex);
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}
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}.execute(this, args, "webview:format");
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}
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}
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@Override
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public void onDestroyView() {
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((ActivityBase) getActivity()).removeBackPressedListener(onBackPressedListener);
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super.onDestroyView();
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}
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@Override
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public void onCreateContextMenu(ContextMenu menu, View view, ContextMenu.ContextMenuInfo menuInfo) {
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super.onCreateContextMenu(menu, view, menuInfo);
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if (view instanceof WebView) {
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final WebView.HitTestResult result = ((WebView) view).getHitTestResult();
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if (result.getType() == WebView.HitTestResult.IMAGE_TYPE ||
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result.getType() == WebView.HitTestResult.SRC_IMAGE_ANCHOR_TYPE) {
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Log.i("Context menu url=" + result.getExtra());
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menu.add(Menu.NONE, 1, 0, R.string.title_view)
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.setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
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@Override
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public boolean onMenuItemClick(MenuItem item) {
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Uri uri = Uri.parse(result.getExtra());
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Intent intent = new Intent(Intent.ACTION_VIEW);
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intent.setData(uri);
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PackageManager pm = getContext().getPackageManager();
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if (intent.resolveActivity(pm) == null)
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Toast.makeText(getContext(), getString(R.string.title_no_viewer, uri.toString()), Toast.LENGTH_LONG).show();
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else
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startActivity(intent);
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return true;
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}
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});
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}
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}
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}
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ActivityBase.IBackPressedListener onBackPressedListener = new ActivityBase.IBackPressedListener() {
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@Override
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public boolean onBackPressed() {
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boolean can = webview.canGoBack();
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if (can)
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webview.goBack();
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Bundle args = getArguments();
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if (args.containsKey("from") && !webview.canGoBack())
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setSubtitle(args.getString("from"));
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return can;
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}
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};
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}
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