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package it.niedermann.owncloud.notes.android.fragment;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.Typeface;
import android.net.Uri;
import android.os.Bundle;
import android.text.Layout;
import android.text.SpannableString;
import android.text.TextUtils;
import android.text.method.LinkMovementMethod;
import android.util.TypedValue;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ScrollView;
import android.widget.TextView;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.core.view.ViewCompat;
import androidx.preference.PreferenceManager;
import androidx.swiperefreshlayout.widget.SwipeRefreshLayout.OnRefreshListener;
import com.google.android.material.floatingactionbutton.FloatingActionButton;
import com.nextcloud.android.sso.exceptions.NextcloudFilesAppAccountNotFoundException;
import com.nextcloud.android.sso.exceptions.NoCurrentAccountSelectedException;
import com.nextcloud.android.sso.helper.SingleAccountHelper;
import com.nextcloud.android.sso.model.SingleSignOnAccount;
import com.yydcdut.markdown.MarkdownProcessor;
import com.yydcdut.markdown.syntax.text.TextFactory;
import it.niedermann.owncloud.notes.R;
import it.niedermann.owncloud.notes.android.activity.EditNoteActivity;
import it.niedermann.owncloud.notes.databinding.FragmentNotePreviewBinding;
import it.niedermann.owncloud.notes.model.LoginStatus;
import it.niedermann.owncloud.notes.persistence.NotesDatabase;
import it.niedermann.owncloud.notes.util.DisplayUtils;
import it.niedermann.owncloud.notes.util.MarkDownUtil;
import it.niedermann.owncloud.notes.util.NoteLinksUtils;
import it.niedermann.owncloud.notes.util.SSOUtil;
import static it.niedermann.owncloud.notes.util.MarkDownUtil.CHECKBOX_CHECKED_MINUS;
import static it.niedermann.owncloud.notes.util.MarkDownUtil.CHECKBOX_CHECKED_STAR;
import static it.niedermann.owncloud.notes.util.MarkDownUtil.CHECKBOX_UNCHECKED_MINUS;
import static it.niedermann.owncloud.notes.util.MarkDownUtil.CHECKBOX_UNCHECKED_STAR;
public class NotePreviewFragment extends SearchableBaseNoteFragment implements OnRefreshListener {
private String changedText;
private MarkdownProcessor markdownProcessor;
private FragmentNotePreviewBinding binding;
public static NotePreviewFragment newInstance(long accountId, long noteId) {
NotePreviewFragment f = new NotePreviewFragment();
Bundle b = new Bundle();
b.putLong(PARAM_NOTE_ID, noteId);
b.putLong(PARAM_ACCOUNT_ID, accountId);
f.setArguments(b);
return f;
}
@Override
public void onPrepareOptionsMenu(@NonNull Menu menu) {
super.onPrepareOptionsMenu(menu);
menu.findItem(R.id.menu_edit).setVisible(true);
menu.findItem(R.id.menu_preview).setVisible(false);
}
@Override
public ScrollView getScrollView() {
return binding.scrollView;
}
@Override
protected FloatingActionButton getSearchNextButton() {
return binding.searchNext;
}
@Override
protected FloatingActionButton getSearchPrevButton() {
return binding.searchPrev;
}
@Override
protected Layout getLayout() {
binding.singleNoteContent.onPreDraw();
return binding.singleNoteContent.getLayout();
}
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup
container, @Nullable Bundle savedInstanceState) {
binding = FragmentNotePreviewBinding.inflate(inflater, container, false);
return binding.getRoot();
}
@Override
public void onActivityCreated(@Nullable Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
markdownProcessor = new MarkdownProcessor(requireContext());
markdownProcessor.factory(TextFactory.create());
markdownProcessor.config(
MarkDownUtil.getMarkDownConfiguration(binding.singleNoteContent.getContext())
.setOnTodoClickCallback((view, line, lineNumber) -> {
try {
String[] lines = TextUtils.split(note.getContent(), "\\r?\\n");
/*
* Workaround for RxMarkdown-bug:
* When (un)checking a checkbox in a note which contains code-blocks, the "`"-characters get stripped out in the TextView and therefore the given lineNumber is wrong
* Find number of lines starting with ``` before lineNumber
*/
for (int i = 0; i < lines.length; i++) {
if (lines[i].startsWith("```")) {
lineNumber++;
}
if (i == lineNumber) {
break;
}
}
/*
* Workaround for multiple RxMarkdown-bugs:
* When (un)checking a checkbox which is in the last line, every time it gets toggled, the last character of the line gets lost.
* When (un)checking a checkbox, every markdown gets stripped in the given line argument
*/
if (lines[lineNumber].startsWith(CHECKBOX_UNCHECKED_MINUS) || lines[lineNumber].startsWith(CHECKBOX_UNCHECKED_STAR)) {
lines[lineNumber] = lines[lineNumber].replace(CHECKBOX_UNCHECKED_MINUS, CHECKBOX_CHECKED_MINUS);
lines[lineNumber] = lines[lineNumber].replace(CHECKBOX_UNCHECKED_STAR, CHECKBOX_CHECKED_STAR);
} else {
lines[lineNumber] = lines[lineNumber].replace(CHECKBOX_CHECKED_MINUS, CHECKBOX_UNCHECKED_MINUS);
lines[lineNumber] = lines[lineNumber].replace(CHECKBOX_CHECKED_STAR, CHECKBOX_UNCHECKED_STAR);
}
changedText = TextUtils.join("\n", lines);
binding.singleNoteContent.setText(markdownProcessor.parse(changedText));
saveNote(null);
} catch (IndexOutOfBoundsException e) {
Toast.makeText(getActivity(), R.string.checkbox_could_not_be_toggled, Toast.LENGTH_SHORT).show();
e.printStackTrace();
}
return line;
}
)
.setOnLinkClickCallback((view, link) -> {
if (NoteLinksUtils.isNoteLink(link)) {
long noteRemoteId = NoteLinksUtils.extractNoteRemoteId(link);
long noteLocalId = db.getLocalIdByRemoteId(this.note.getAccountId(), noteRemoteId);
Intent intent = new Intent(requireActivity().getApplicationContext(), EditNoteActivity.class);
intent.putExtra(EditNoteActivity.PARAM_NOTE_ID, noteLocalId);
startActivity(intent);
} else {
Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(link));
startActivity(browserIntent);
}
})
.build());
try {
CharSequence parsedMarkdown = markdownProcessor.parse(NoteLinksUtils.replaceNoteLinksWithDummyUrls(note.getContent(), db.getRemoteIds(note.getAccountId())));
binding.singleNoteContent.setText(parsedMarkdown);
} catch (StringIndexOutOfBoundsException e) {
// Workaround for RxMarkdown: https://github.com/stefan-niedermann/nextcloud-notes/issues/668
binding.singleNoteContent.setText(NoteLinksUtils.replaceNoteLinksWithDummyUrls(note.getContent(), db.getRemoteIds(note.getAccountId())));
Toast.makeText(binding.singleNoteContent.getContext(), R.string.could_not_load_preview_two_digit_numbered_list, Toast.LENGTH_LONG).show();
e.printStackTrace();
}
changedText = note.getContent();
binding.singleNoteContent.setMovementMethod(LinkMovementMethod.getInstance());
db = NotesDatabase.getInstance(requireContext());
binding.swiperefreshlayout.setOnRefreshListener(this);
SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(requireActivity().getApplicationContext());
binding.singleNoteContent.setTextSize(TypedValue.COMPLEX_UNIT_PX, getFontSizeFromPreferences(sp));
if (sp.getBoolean(getString(R.string.pref_key_font), false)) {
binding.singleNoteContent.setTypeface(Typeface.MONOSPACE);
}
}
@Override
protected void colorWithText(String newText) {
if (binding != null && ViewCompat.isAttachedToWindow(binding.singleNoteContent)) {
binding.singleNoteContent.setText(markdownProcessor.parse(DisplayUtils.searchAndColor(getContent(), new SpannableString
(getContent()), newText, getResources().getColor(R.color.primary))),
TextView.BufferType.SPANNABLE);
}
}
@Override
protected String getContent() {
return changedText;
}
@Override
public void onRefresh() {
if (db.getNoteServerSyncHelper().isSyncPossible() && SSOUtil.isConfigured(getContext())) {
binding.swiperefreshlayout.setRefreshing(true);
try {
SingleSignOnAccount ssoAccount = SingleAccountHelper.getCurrentSingleSignOnAccount(requireContext());
db.getNoteServerSyncHelper().addCallbackPull(ssoAccount, () -> {
note = db.getNote(note.getAccountId(), note.getId());
binding.singleNoteContent.setText(markdownProcessor.parse(NoteLinksUtils.replaceNoteLinksWithDummyUrls(note.getContent(), db.getRemoteIds(note.getAccountId()))));
binding.swiperefreshlayout.setRefreshing(false);
});
db.getNoteServerSyncHelper().scheduleSync(ssoAccount, false);
} catch (NextcloudFilesAppAccountNotFoundException | NoCurrentAccountSelectedException e) {
e.printStackTrace();
}
} else {
binding.swiperefreshlayout.setRefreshing(false);
Toast.makeText(requireContext(), getString(R.string.error_sync, getString(LoginStatus.NO_NETWORK.str)), Toast.LENGTH_LONG).show();
}
}
}
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