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package fr.gouv.etalab.mastodon.drawers;
/* Copyright 2017 Thomas Schneider
*
* This file is a part of Mastalab
*
* This program is free software; you can redistribute it and/or modify it under the terms of the
* GNU General Public License as published by the Free Software Foundation; either version 3 of the
* License, or (at your option) any later version.
*
* Mastalab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
* Public License for more details.
*
* You should have received a copy of the GNU General Public License along with Mastalab; if not,
* see <http://www.gnu.org/licenses>. */
import android.content.Context;
import android.support.annotation.NonNull;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.Filter;
import android.widget.Filterable;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.List;
import fr.gouv.etalab.mastodon.R;
/**
* Created by Thomas on 09/10/2017.
* Adapter for tags when searching
*/
public class TagsSearchAdapter extends ArrayAdapter<String> implements Filterable {
private List<String> tags, tempTags, suggestions ;
private LayoutInflater layoutInflater;
public TagsSearchAdapter(Context context, List<String> tags){
super(context, android.R.layout.simple_list_item_1, tags);
this.tags = tags;
this.tempTags = new ArrayList<>(tags);
this.suggestions = new ArrayList<>(tags);
layoutInflater = LayoutInflater.from(context);
}
@Override
public int getCount() {
return tags.size();
}
@Override
public String getItem(int position) {
return tags.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@NonNull
@Override
public View getView(final int position, View convertView, @NonNull ViewGroup parent) {
final String tag = tags.get(position);
final ViewHolder holder;
if (convertView == null) {
convertView = layoutInflater.inflate(R.layout.drawer_tag_search, parent, false);
holder = new ViewHolder();
holder.tag_name = convertView.findViewById(R.id.tag_name);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.tag_name.setText(String.format("#%s", tag));
return convertView;
}
@NonNull
@Override
public Filter getFilter() {
return searchFilter;
}
private Filter searchFilter = new Filter() {
@Override
public CharSequence convertResultToString(Object resultValue) {
String tag = (String) resultValue;
return "#" + tag;
}
@Override
protected FilterResults performFiltering(CharSequence constraint) {
if (constraint != null) {
suggestions.clear();
suggestions.addAll(tempTags);
FilterResults filterResults = new FilterResults();
filterResults.values = suggestions;
filterResults.count = suggestions.size();
return filterResults;
} else {
return new FilterResults();
}
}
@Override
protected void publishResults(CharSequence constraint, FilterResults results) {
ArrayList<String> c = (ArrayList<String>) results.values;
if (results.count > 0) {
clear();
addAll(c);
notifyDataSetChanged();
} else{
clear();
notifyDataSetChanged();
}
}
};
private class ViewHolder {
TextView tag_name;
}
}
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