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package de.danoeh.antennapod.fragment.preferences;
import android.os.Bundle;
import android.view.View;
import android.widget.ListView;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AlertDialog;
import androidx.fragment.app.ListFragment;
import de.danoeh.antennapod.R;
import de.danoeh.antennapod.activity.PreferenceActivity;
import de.danoeh.antennapod.adapter.SimpleIconListAdapter;
import de.danoeh.antennapod.core.util.IntentUtils;
import io.reactivex.Single;
import io.reactivex.SingleOnSubscribe;
import io.reactivex.android.schedulers.AndroidSchedulers;
import io.reactivex.disposables.Disposable;
import io.reactivex.schedulers.Schedulers;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.NodeList;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
public class AboutLicensesFragment extends ListFragment {
private Disposable licensesLoader;
private final ArrayList<LicenseItem> licenses = new ArrayList<>();
@Override
public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
getListView().setDivider(null);
licensesLoader = Single.create((SingleOnSubscribe<ArrayList<LicenseItem>>) emitter -> {
licenses.clear();
InputStream stream = getContext().getAssets().open("licenses.xml");
DocumentBuilder docBuilder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
NodeList libraryList = docBuilder.parse(stream).getElementsByTagName("library");
for (int i = 0; i < libraryList.getLength(); i++) {
NamedNodeMap lib = libraryList.item(i).getAttributes();
licenses.add(new LicenseItem(
lib.getNamedItem("name").getTextContent(),
String.format("By %s, %s license",
lib.getNamedItem("author").getTextContent(),
lib.getNamedItem("license").getTextContent()),
null,
lib.getNamedItem("website").getTextContent(),
lib.getNamedItem("licenseText").getTextContent()));
}
emitter.onSuccess(licenses);
})
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(
developers -> setListAdapter(new SimpleIconListAdapter<LicenseItem>(getContext(), developers)),
error -> Toast.makeText(getContext(), "Error while loading licenses", Toast.LENGTH_LONG).show()
);
}
private static class LicenseItem extends SimpleIconListAdapter.ListItem {
final String licenseUrl;
final String licenseTextFile;
LicenseItem(String title, String subtitle, String imageUrl, String licenseUrl, String licenseTextFile) {
super(title, subtitle, imageUrl);
this.licenseUrl = licenseUrl;
this.licenseTextFile = licenseTextFile;
}
}
@Override
public void onListItemClick(@NonNull ListView l, @NonNull View v, int position, long id) {
super.onListItemClick(l, v, position, id);
LicenseItem item = licenses.get(position);
CharSequence[] items = {"View website", "View license"};
new AlertDialog.Builder(getContext())
.setTitle(item.title)
.setItems(items, (dialog, which) -> {
if (which == 0) {
IntentUtils.openInBrowser(getContext(), item.licenseUrl);
} else if (which == 1) {
showLicenseText(item.licenseTextFile);
}
}).show();
}
private void showLicenseText(String licenseTextFile) {
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(
getContext().getAssets().open(licenseTextFile)));
StringBuilder licenseText = new StringBuilder();
String line;
while ((line = reader.readLine()) != null) {
licenseText.append(line).append("\n");
}
new AlertDialog.Builder(getContext())
.setMessage(licenseText)
.show();
} catch (IOException e) {
e.printStackTrace();
}
}
@Override
public void onStop() {
super.onStop();
if (licensesLoader != null) {
licensesLoader.dispose();
}
}
@Override
public void onStart() {
super.onStart();
((PreferenceActivity) getActivity()).getSupportActionBar().setTitle(R.string.licenses);
}
}
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