package org.goodev.discourse.ui;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.ContentResolver;
import android.content.Context;
import android.content.DialogInterface;
import android.database.ContentObserver;
import android.database.Cursor;
import android.os.Bundle;
import android.os.Handler;
import android.support.v4.app.ListFragment;
import android.support.v4.app.LoaderManager.LoaderCallbacks;
import android.support.v4.content.CursorLoader;
import android.support.v4.content.Loader;
import android.support.v4.widget.CursorAdapter;
import android.text.Html;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.TextView;
import org.goodev.discourse.R;
import org.goodev.discourse.SettingsActivity;
import org.goodev.discourse.contentprovider.Provider;
import org.goodev.discourse.database.tables.SiteTable;
import org.goodev.discourse.database.tables.UserInfoTable;
import org.goodev.discourse.model.Site;
import org.goodev.discourse.ui.SimpleSectionedListAdapter.Section;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Set;
/**
* {@see com.google.android.apps.iosched.ui.SimpleSectionedListAdapter 用discourse网站把用户分组}
* <p/>
* <pre>
* site one
* user one
* user two
* site two
* user one
* user two
* </pre>
*/
public class SettingsFragment extends ListFragment implements LoaderCallbacks<Cursor> {
public static final int LOADER_USER_ID = 0;
public static final int LOADER_SITE_ID = 1;
private final ContentObserver mObserver = new ContentObserver(new Handler()) {
@Override
public void onChange(boolean selfChange) {
if (!isAdded()) {
return;
}
getLoaderManager().restartLoader(LOADER_SITE_ID, null, SettingsFragment.this);
}
};
private final HashMap<Long, Site> mSitesMap = new HashMap<Long, Site>();
private String mCurrentSiteUrl;
private final OnClickListener mAddUserListener = new OnClickListener() {
@Override
public void onClick(View v) {
mCurrentSiteUrl = (String) v.getTag();
if (v.getId() == R.id.delete_site) {
deleteSite();
return;
}
if (getActivity() instanceof SettingsActivity) {
SettingsActivity a = (SettingsActivity) getActivity();
a.setCurrentSite(mCurrentSiteUrl);
}
if (hasUserInfo()) {
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setTitle(R.string.remove_exist_user);
builder.setMessage(Html.fromHtml(getResources().getString(R.string.remove_exist_user_msg, mCurrentSiteUrl)));
builder.setNegativeButton(android.R.string.cancel, null);
builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
removeExistUser();
showAddUserDialog();
}
});
builder.create().show();
} else {
showAddUserDialog();
}
}
};
private SimpleSectionedListAdapter mAdapter;
private UserAdapter mUserAdapter;
private void removeExistUser() {
Cursor cursor = getActivity().getContentResolver().query(Provider.USERINFO_CONTENT_URI, UserInfoTable.ALL_COLUMNS, UserInfoTable.SITEURL + " = \"" + mCurrentSiteUrl + "\"", null, null);
cursor.moveToFirst();
ContentResolver cr = getActivity().getContentResolver();
while (!cursor.isAfterLast()) {
long id = cursor.getLong(cursor.getColumnIndex(UserInfoTable.ID));
cr.delete(Provider.USERINFO_CONTENT_URI, UserInfoTable.ID + "=" + id, null);
cursor.moveToNext();
}
}
protected void deleteSite() {
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setTitle(R.string.delete_site);
builder.setMessage(Html.fromHtml(getResources().getString(R.string.delete_site_msg, mCurrentSiteUrl)));
builder.setNegativeButton(android.R.string.cancel, null);
builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
ContentResolver cr = getActivity().getContentResolver();
cr.delete(Provider.SITE_CONTENT_URI, SiteTable.URL + " = \"" + mCurrentSiteUrl + "\"", null);
cr.delete(Provider.USERINFO_CONTENT_URI, UserInfoTable.SITEURL + " = \"" + mCurrentSiteUrl + "\"", null);
}
});
builder.create().show();
}
private boolean hasUserInfo() {
Cursor cursor = getActivity().getContentResolver().query(Provider.USERINFO_CONTENT_URI, UserInfoTable.ALL_COLUMNS, UserInfoTable.SITEURL + " = \"" + mCurrentSiteUrl + "\"", null, null);
return cursor.getCount() > 0;
}
private void showAddUserDialog() {
new AddUserFragment().show(getFragmentManager(), "add_user_tag");
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mUserAdapter = new UserAdapter(getActivity());
mAdapter = new SimpleSectionedListAdapter(getActivity(), mUserAdapter, mAddUserListener);
setListAdapter(mAdapter);
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
// In support library r8, calling initLoader for a fragment in a FragmentPagerAdapter in
// the fragment's onCreate may cause the same LoaderManager to be dealt to multiple
// fragments because their mIndex is -1 (haven't been added to the activity yet). Thus,
// we do this in onActivityCreated.
getLoaderManager().initLoader(LOADER_SITE_ID, null, this);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View root = inflater.inflate(R.layout.fragment_settings, container, false);
return root;
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
activity.getContentResolver().registerContentObserver(Provider.SITE_CONTENT_URI, true, mObserver);
activity.getContentResolver().registerContentObserver(Provider.USERINFO_CONTENT_URI, true, mObserver);
}
@Override
public void onDetach() {
super.onDetach();
getActivity().getContentResolver().unregisterContentObserver(mObserver);
}
@Override
public void onResume() {
super.onResume();
}
@Override
public Loader<Cursor> onCreateLoader(int id, Bundle data) {
String userSort = UserInfoTable.SITEID + " ASC";
String siteSort = SiteTable.ID + " ASC";
switch (id) {
case LOADER_SITE_ID:
return new CursorLoader(getActivity(), Provider.SITE_CONTENT_URI, SiteTable.ALL_COLUMNS, null, null, siteSort);
case LOADER_USER_ID:
return new CursorLoader(getActivity(), Provider.USERINFO_CONTENT_URI, UserInfoTable.ALL_COLUMNS, null, null, userSort);
}
return null;
}
// TODO 先获取 site的数据，获取到site数据后，再获取 user数据
// 好计算site的section 位置
@Override
public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {
if (!isAdded()) {
return;
}
Context ctx = getActivity();
if (loader.getId() == LOADER_SITE_ID) {
mSitesMap.clear();
cursor.moveToFirst();
while (!cursor.isAfterLast()) {
Site site = new Site(cursor);
mSitesMap.put(site.getId(), site);
cursor.moveToNext();
}
getLoaderManager().initLoader(LOADER_USER_ID, null, SettingsFragment.this);
} else {
List<Section> sections = new ArrayList<SimpleSectionedListAdapter.Section>();
cursor.moveToFirst();
long previousSiteId = -1;
long siteId;
List<Long> ids = new ArrayList<Long>();
while (!cursor.isAfterLast()) {
siteId = cursor.getLong(cursor.getColumnIndex(UserInfoTable.SITEID));
Site site = mSitesMap.get(siteId);
if (previousSiteId != siteId && site != null) {
ids.add(siteId);
sections.add(new Section(cursor.getPosition(), site.getTitle(), site.getUrl(), site.getId()));
}
previousSiteId = siteId;
cursor.moveToNext();
}
int count = cursor.getCount();
mUserAdapter.swapCursor(cursor);
Set<Long> keys = mSitesMap.keySet();
for (Long id : keys) {
if (!ids.contains(id)) {
Site site = mSitesMap.get(id);
sections.add(new Section(count, site.getTitle(), site.getUrl(), site.getId()));
}
}
Section[] dummy = new Section[sections.size()];
mAdapter.setSections(sections.toArray(dummy));
}
}
@Override
public void onLoaderReset(Loader<Cursor> loader) {
}
private class UserAdapter extends CursorAdapter {
public UserAdapter(Context context) {
super(context, null, 0);
}
@Override
public void bindView(View view, Context context, final Cursor cursor) {
final String name = cursor.getString(cursor.getColumnIndex(UserInfoTable.NAME));
final TextView nameView = (TextView) view.findViewById(android.R.id.text1);
nameView.setText(name);
}
@Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
return LayoutInflater.from(context).inflate(android.R.layout.simple_list_item_1, parent, false);
}
}
}