package org.fox.ttrss; import java.lang.reflect.Type; import java.util.ArrayList; import java.util.Collections; import java.util.Comparator; import java.util.HashMap; import java.util.List; import org.fox.ttrss.types.FeedCategory; import org.fox.ttrss.types.FeedCategoryList; import android.app.Activity; import android.content.Context; import android.content.SharedPreferences; import android.content.SharedPreferences.OnSharedPreferenceChangeListener; import android.os.Bundle; import android.preference.PreferenceManager; import android.support.v4.app.Fragment; import android.util.Log; import android.view.ContextMenu; import android.view.ContextMenu.ContextMenuInfo; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.view.Window; import android.widget.AdapterView; import android.widget.AdapterView.AdapterContextMenuInfo; import android.widget.AdapterView.OnItemClickListener; import android.widget.ArrayAdapter; import android.widget.ImageView; import android.widget.ListView; import android.widget.TextView; import com.google.gson.Gson; import com.google.gson.JsonArray; import com.google.gson.JsonElement; import com.google.gson.reflect.TypeToken; public class FeedCategoriesFragment extends Fragment implements OnItemClickListener, OnSharedPreferenceChangeListener { @SuppressWarnings("unused") private final String TAG = this.getClass().getSimpleName(); private SharedPreferences m_prefs; private FeedCategoryListAdapter m_adapter; private FeedCategoryList m_cats = new FeedCategoryList(); private FeedCategory m_selectedCat; private OnlineServices m_onlineServices; class CatUnreadComparator implements Comparator { @Override public int compare(FeedCategory a, FeedCategory b) { if (a.unread != b.unread) return b.unread - a.unread; else return a.title.compareTo(b.title); } } class CatTitleComparator implements Comparator { @Override public int compare(FeedCategory a, FeedCategory b) { if (a.id >= 0 && b.id >= 0) return a.title.compareTo(b.title); else return a.id - b.id; } } class CatOrderComparator implements Comparator { @Override public int compare(FeedCategory a, FeedCategory b) { if (a.id >= 0 && b.id >= 0) if (a.order_id != 0 && b.order_id != 0) return a.order_id - b.order_id; else return a.title.compareTo(b.title); else return a.id - b.id; } } @Override public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { getActivity().getMenuInflater().inflate(R.menu.category_menu, menu); AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo; FeedCategory cat = m_adapter.getItem(info.position); if (cat != null) menu.setHeaderTitle(cat.title); super.onCreateContextMenu(menu, v, menuInfo); } public FeedCategory getCategoryAtPosition(int position) { return m_adapter.getItem(position); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { if (savedInstanceState != null) { m_selectedCat = savedInstanceState.getParcelable("selectedCat"); m_cats = savedInstanceState.getParcelable("cats"); } View view = inflater.inflate(R.layout.cats_fragment, container, false); ListView list = (ListView)view.findViewById(R.id.feeds); m_adapter = new FeedCategoryListAdapter(getActivity(), R.layout.feeds_row, (ArrayList)m_cats); list.setAdapter(m_adapter); list.setOnItemClickListener(this); registerForContextMenu(list); if (m_cats == null || m_cats.size() == 0) refresh(false); else getActivity().setProgressBarIndeterminateVisibility(false); return view; } @Override public void onAttach(Activity activity) { super.onAttach(activity); m_onlineServices = (OnlineServices)activity; m_prefs = PreferenceManager.getDefaultSharedPreferences(getActivity().getApplicationContext()); m_prefs.registerOnSharedPreferenceChangeListener(this); } @Override public void onSaveInstanceState (Bundle out) { super.onSaveInstanceState(out); out.putParcelable("selectedCat", m_selectedCat); out.putParcelable("cats", m_cats); } public void setLoadingStatus(int status, boolean showProgress) { if (getView() != null) { TextView tv = (TextView)getView().findViewById(R.id.loading_message); if (tv != null) { tv.setText(status); } } if (getActivity() != null) getActivity().setProgressBarIndeterminateVisibility(showProgress); } @SuppressWarnings("unchecked") public void refresh(boolean background) { CatsRequest req = new CatsRequest(getActivity().getApplicationContext()); final String sessionId = m_onlineServices.getSessionId(); final boolean unreadOnly = m_onlineServices.getUnreadOnly(); if (sessionId != null) { getActivity().runOnUiThread(new Runnable() { @Override public void run() { setLoadingStatus(R.string.blank, true); } }); @SuppressWarnings("serial") HashMap map = new HashMap() { { put("op", "getCategories"); put("sid", sessionId); if (unreadOnly) { put("unread_only", String.valueOf(unreadOnly)); } } }; req.execute(map); } } private class CatsRequest extends ApiRequest { public CatsRequest(Context context) { super(context); } protected void onPostExecute(JsonElement result) { if (result != null) { try { JsonArray content = result.getAsJsonArray(); if (content != null) { Type listType = new TypeToken>() {}.getType(); final List cats = new Gson().fromJson(content, listType); m_cats.clear(); int apiLevel = m_onlineServices.getApiLevel(); // virtual cats implemented in getCategories since api level 1 if (apiLevel == 0) { m_cats.add(new FeedCategory(-1, "Special", 0)); m_cats.add(new FeedCategory(-2, "Labels", 0)); m_cats.add(new FeedCategory(0, "Uncategorized", 0)); } for (FeedCategory c : cats) m_cats.add(c); sortCats(); if (m_cats.size() == 0) setLoadingStatus(R.string.no_feeds_to_display, false); else setLoadingStatus(R.string.blank, false); return; } } catch (Exception e) { e.printStackTrace(); } } if (m_lastError == ApiError.LOGIN_FAILED) { m_onlineServices.login(); } else { setLoadingStatus(getErrorMessage(), false); } } } public void sortCats() { Comparator cmp; if (m_prefs.getBoolean("sort_feeds_by_unread", false)) { cmp = new CatUnreadComparator(); } else { if (m_onlineServices.getApiLevel() >= 3) { cmp = new CatOrderComparator(); } else { cmp = new CatTitleComparator(); } } Collections.sort(m_cats, cmp); m_adapter.notifyDataSetInvalidated(); } private class FeedCategoryListAdapter extends ArrayAdapter { private ArrayList items; public static final int VIEW_NORMAL = 0; public static final int VIEW_SELECTED = 1; public static final int VIEW_COUNT = VIEW_SELECTED+1; public FeedCategoryListAdapter(Context context, int textViewResourceId, ArrayList items) { super(context, textViewResourceId, items); this.items = items; } public int getViewTypeCount() { return VIEW_COUNT; } @Override public int getItemViewType(int position) { FeedCategory cat = items.get(position); if (m_selectedCat != null && cat.id == m_selectedCat.id) { return VIEW_SELECTED; } else { return VIEW_NORMAL; } } @Override public View getView(int position, View convertView, ViewGroup parent) { View v = convertView; FeedCategory cat = items.get(position); if (v == null) { int layoutId = R.layout.feeds_row; switch (getItemViewType(position)) { case VIEW_SELECTED: layoutId = R.layout.feeds_row_selected; break; } LayoutInflater vi = (LayoutInflater)getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE); v = vi.inflate(layoutId, null); } TextView tt = (TextView) v.findViewById(R.id.title); if (tt != null) { tt.setText(cat.title); } TextView tu = (TextView) v.findViewById(R.id.unread_counter); if (tu != null) { tu.setText(String.valueOf(cat.unread)); tu.setVisibility((cat.unread > 0) ? View.VISIBLE : View.INVISIBLE); } ImageView icon = (ImageView)v.findViewById(R.id.icon); if (icon != null) { icon.setImageResource(cat.unread > 0 ? R.drawable.ic_rss : R.drawable.ic_rss_bw); } return v; } } @Override public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) { sortCats(); } @Override public void onItemClick(AdapterView av, View view, int position, long id) { ListView list = (ListView)av; if (list != null) { FeedCategory cat = (FeedCategory)list.getItemAtPosition(position); m_onlineServices.onCatSelected(cat); m_selectedCat = cat; m_adapter.notifyDataSetChanged(); } } public void setSelectedCategory(FeedCategory cat) { m_selectedCat = cat; m_adapter.notifyDataSetChanged(); } public FeedCategory getSelectedCategory() { return m_selectedCat; } }