package net.dev123.yibo.service.adapter;
import java.util.ArrayList;
import java.util.List;
import net.dev123.commons.ServiceProvider;
import net.dev123.commons.util.ListUtil;
import net.dev123.commons.util.StringUtil;
import net.dev123.entity.BaseUser;
import net.dev123.mblog.entity.User;
import net.dev123.yibo.YiBoApplication;
import net.dev123.yibo.common.Constants;
import net.dev123.yibo.db.LocalAccount;
import net.dev123.yibo.db.UserDao;
import android.app.Activity;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Filter;
import android.widget.Filterable;
import android.widget.TextView;
public class UserSuggestAdapter extends CacheAdapter<User> implements Filterable {
private List<BaseUser> listUser = null;
private List<BaseUser> listOriginalUser = null;
private Filter filter = null;
boolean isUseName = false;
public UserSuggestAdapter(Activity context) {
super(context, null);
YiBoApplication yibo = (YiBoApplication)context.getApplication();
LocalAccount account = yibo.getCurrentAccount();
this.account = account;
listUser = new ArrayList<BaseUser>(Constants.PAGING_DEFAULT_COUNT);
isUseName = account != null &&
(account.getServiceProvider() == ServiceProvider.Tencent ||
account.getServiceProvider() == ServiceProvider.Twitter);
}
@Override
public int getCount() {
return listUser.size();
}
@Override
public Object getItem(int position) {
if (position < 0 || position >= listUser.size()) {
return null;
}
return listUser.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
Object obj = getItem(position);
if (convertView == null) {
convertView = inflater.inflate(android.R.layout.simple_dropdown_item_1line, null);
}
User user = (User) obj;
TextView tvName = (TextView)convertView;
if (isUseName) {
tvName.setText(user.getScreenName() + "@" + user.getName());
} else {
tvName.setText(user.getScreenName());
}
return convertView;
}
@Override
public boolean addCacheToFirst(List<User> list) {
return false;
}
@Override
public boolean addCacheToDivider(User value, List<User> list) {
if (ListUtil.isEmpty(list)) {
return false;
}
if (listOriginalUser != null) {
synchronized (mLock) {
listOriginalUser.addAll(list);
if (filter != null) {
filter.filter(filterText);
}
}
} else {
listUser.addAll(list);
}
this.notifyDataSetChanged();
return true;
}
@Override
public boolean addCacheToLast(List<User> list) {
if (ListUtil.isEmpty(list)) {
return false;
}
if (listOriginalUser != null) {
synchronized (mLock) {
listOriginalUser.addAll(list);
if (filter != null) {
filter.filter(filterText);
}
}
} else {
listUser.addAll(list);
}
this.notifyDataSetChanged();
return true;
}
@Override
public User getMax() {
return null;
}
@Override
public User getMin() {
return null;
}
@Override
public void clear() {
listUser.clear();
}
@Override
public Filter getFilter() {
if (filter == null) {
filter = new UserFilter();
}
return filter;
}
private Object mLock = new Object();
private String filterText;
private class UserFilter extends Filter {
@Override
protected FilterResults performFiltering(CharSequence constraint) {
FilterResults results = new FilterResults();
if (listOriginalUser == null) {
synchronized (mLock) {
listOriginalUser = new ArrayList<BaseUser>(listUser);
}
}
String filterStr = null;
if (constraint != null) {
filterStr = constraint.toString().toLowerCase();
}
filterText = filterStr;
if (StringUtil.isEmpty(filterStr)) {
synchronized (mLock) {
results.values = listOriginalUser;
results.count = listOriginalUser.size();
}
} else {
final List<BaseUser> values = listOriginalUser;
final int count = values.size();
final List<BaseUser> newValues = new ArrayList<BaseUser>(count);
for (int i = 0; i < count; i++) {
final BaseUser user = values.get(i);
final String screenName = user.getScreenName().toLowerCase();
final String name = user.getName().toLowerCase();
if (screenName.contains(filterStr) || name.contains(filterStr)) {
newValues.add(user);
}
}
searchFromUser(filterStr, newValues);
results.values = newValues;
results.count = newValues.size();
}
return results;
}
@SuppressWarnings("unchecked")
@Override
protected void publishResults(CharSequence constraint,
FilterResults results) {
listUser = (List<BaseUser>) results.values;
if (results.count > 0) {
notifyDataSetChanged();
} else {
notifyDataSetInvalidated();
}
}
@Override
public CharSequence convertResultToString(Object resultValue) {
if (resultValue == null ||
!(resultValue instanceof User)
) {
return "";
}
String name = "";
User user = (User)resultValue;
if (isUseName) {
name = user.getName();
} else {
name = user.getScreenName();
}
return name;
}
private void searchFromUser(String filterName, List<BaseUser> listResult) {
if (StringUtil.isEmpty(filterName) || listResult == null) {
return;
}
UserDao dao = new UserDao(context);
ServiceProvider sp = account != null ? account.getServiceProvider() : ServiceProvider.Sina;
List<BaseUser> listUser = dao.findUsers(sp, filterName);
if (listUser == null || listUser.size() == 0) {
return;
}
for (BaseUser user : listUser) {
if (!listResult.contains(user)) {
listResult.add(user);
}
}
}
}
}