348 lines
9.3 KiB
Java
348 lines
9.3 KiB
Java
package org.fox.ttrss;
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import java.lang.reflect.Type;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.Comparator;
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import java.util.HashMap;
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import java.util.List;
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import android.app.Activity;
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import android.content.Context;
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import android.content.SharedPreferences;
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import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
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import android.os.Bundle;
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import android.preference.PreferenceManager;
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import android.support.v4.app.Fragment;
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import android.util.Log;
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import android.view.ContextMenu;
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import android.view.ContextMenu.ContextMenuInfo;
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import android.view.LayoutInflater;
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import android.view.MenuItem;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.AdapterView;
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import android.widget.AdapterView.AdapterContextMenuInfo;
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import android.widget.AdapterView.OnItemClickListener;
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import android.widget.ArrayAdapter;
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import android.widget.ImageView;
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import android.widget.ListView;
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import android.widget.TextView;
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import com.google.gson.Gson;
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import com.google.gson.JsonArray;
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import com.google.gson.JsonElement;
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import com.google.gson.reflect.TypeToken;
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public class FeedCategoriesFragment extends Fragment implements OnItemClickListener, OnSharedPreferenceChangeListener {
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@SuppressWarnings("unused")
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private final String TAG = this.getClass().getSimpleName();
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private SharedPreferences m_prefs;
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private FeedCategoryListAdapter m_adapter;
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private FeedCategoryList m_cats = new FeedCategoryList();
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private int m_selectedCatId = -100;
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private OnCatSelectedListener m_catSelectedListener;
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public interface OnCatSelectedListener {
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public void onCatSelected(FeedCategory cat);
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}
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class CatUnreadComparator implements Comparator<FeedCategory> {
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@Override
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public int compare(FeedCategory a, FeedCategory b) {
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if (a.unread != b.unread)
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return b.unread - a.unread;
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else
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return a.title.compareTo(b.title);
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}
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}
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class CatTitleComparator implements Comparator<FeedCategory> {
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@Override
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public int compare(FeedCategory a, FeedCategory b) {
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if (a.id >= 0 && b.id >= 0)
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return a.title.compareTo(b.title);
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else
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return a.id - b.id;
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}
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}
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@Override
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public void onCreateContextMenu(ContextMenu menu, View v,
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ContextMenuInfo menuInfo) {
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getActivity().getMenuInflater().inflate(R.menu.category_menu, menu);
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AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
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FeedCategory cat = m_adapter.getItem(info.position);
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if (cat != null)
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menu.setHeaderTitle(cat.title);
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super.onCreateContextMenu(menu, v, menuInfo);
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}
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public FeedCategory getCategoryAtPosition(int position) {
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return m_adapter.getItem(position);
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}
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@Override
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public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
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if (savedInstanceState != null) {
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m_selectedCatId = savedInstanceState.getInt("selectedCatId");
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m_cats = savedInstanceState.getParcelable("cats");
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}
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View view = inflater.inflate(R.layout.cats_fragment, container, false);
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ListView list = (ListView)view.findViewById(R.id.feeds);
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m_adapter = new FeedCategoryListAdapter(getActivity(), R.layout.feeds_row, (ArrayList<FeedCategory>)m_cats);
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list.setAdapter(m_adapter);
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list.setOnItemClickListener(this);
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registerForContextMenu(list);
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if (m_cats == null || m_cats.size() == 0)
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refresh(false);
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else
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view.findViewById(R.id.loading_progress).setVisibility(View.GONE);
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return view;
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}
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@Override
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public void onAttach(Activity activity) {
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super.onAttach(activity);
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m_catSelectedListener = (OnCatSelectedListener)activity;
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m_prefs = PreferenceManager.getDefaultSharedPreferences(getActivity().getApplicationContext());
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m_prefs.registerOnSharedPreferenceChangeListener(this);
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}
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@Override
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public void onSaveInstanceState (Bundle out) {
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super.onSaveInstanceState(out);
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out.putInt("selectedCatId", m_selectedCatId);
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out.putParcelable("cats", m_cats);
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}
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public void setLoadingStatus(int status, boolean showProgress) {
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if (getView() != null) {
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TextView tv = (TextView)getView().findViewById(R.id.loading_message);
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if (tv != null) {
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tv.setText(status);
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}
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View pb = getView().findViewById(R.id.loading_progress);
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if (pb != null) {
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pb.setVisibility(showProgress ? View.VISIBLE : View.GONE);
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}
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}
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}
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@SuppressWarnings("unchecked")
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public void refresh(boolean background) {
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CatsRequest req = new CatsRequest(getActivity().getApplicationContext());
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final String sessionId = ((MainActivity)getActivity()).getSessionId();
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final boolean unreadOnly = ((MainActivity)getActivity()).getUnreadOnly();
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if (sessionId != null) {
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if (!background) {
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getActivity().runOnUiThread(new Runnable() {
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@Override
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public void run() {
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setLoadingStatus(R.string.blank, true);
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}
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});
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}
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@SuppressWarnings("serial")
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HashMap<String,String> map = new HashMap<String,String>() {
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{
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put("op", "getCategories");
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put("sid", sessionId);
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if (unreadOnly) {
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put("unread_only", String.valueOf(unreadOnly));
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}
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}
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};
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req.execute(map);
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}
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}
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private class CatsRequest extends ApiRequest {
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public CatsRequest(Context context) {
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super(context);
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}
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protected void onPostExecute(JsonElement result) {
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if (result != null) {
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try {
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JsonArray content = result.getAsJsonArray();
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if (content != null) {
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Type listType = new TypeToken<List<FeedCategory>>() {}.getType();
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final List<FeedCategory> cats = new Gson().fromJson(content, listType);
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m_cats.clear();
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int apiLevel = ((MainActivity)getActivity()).getApiLevel();
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// virtual cats implemented in getCategories since api level 1
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if (apiLevel == 0) {
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m_cats.add(new FeedCategory(-1, "Special", 0));
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m_cats.add(new FeedCategory(-2, "Labels", 0));
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m_cats.add(new FeedCategory(0, "Uncategorized", 0));
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}
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for (FeedCategory c : cats)
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m_cats.add(c);
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sortCats();
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if (m_cats.size() == 0)
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setLoadingStatus(R.string.no_feeds_to_display, false);
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else
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setLoadingStatus(R.string.blank, false);
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return;
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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if (m_lastError == ApiError.LOGIN_FAILED) {
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MainActivity activity = (MainActivity)getActivity();
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activity.login();
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} else {
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setLoadingStatus(getErrorMessage(), false);
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}
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}
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}
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public void sortCats() {
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Comparator<FeedCategory> cmp;
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if (m_prefs.getBoolean("sort_feeds_by_unread", false)) {
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cmp = new CatUnreadComparator();
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} else {
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cmp = new CatTitleComparator();
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}
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Collections.sort(m_cats, cmp);
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m_adapter.notifyDataSetInvalidated();
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}
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private class FeedCategoryListAdapter extends ArrayAdapter<FeedCategory> {
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private ArrayList<FeedCategory> items;
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public static final int VIEW_NORMAL = 0;
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public static final int VIEW_SELECTED = 1;
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public static final int VIEW_COUNT = VIEW_SELECTED+1;
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public FeedCategoryListAdapter(Context context, int textViewResourceId, ArrayList<FeedCategory> items) {
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super(context, textViewResourceId, items);
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this.items = items;
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}
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public int getViewTypeCount() {
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return VIEW_COUNT;
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}
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@Override
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public int getItemViewType(int position) {
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FeedCategory cat = items.get(position);
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if (cat.id == m_selectedCatId) {
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return VIEW_SELECTED;
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} else {
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return VIEW_NORMAL;
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}
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}
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@Override
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public View getView(int position, View convertView, ViewGroup parent) {
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View v = convertView;
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FeedCategory cat = items.get(position);
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if (v == null) {
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int layoutId = R.layout.feeds_row;
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switch (getItemViewType(position)) {
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case VIEW_SELECTED:
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layoutId = R.layout.feeds_row_selected;
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break;
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}
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LayoutInflater vi = (LayoutInflater)getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
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v = vi.inflate(layoutId, null);
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}
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TextView tt = (TextView) v.findViewById(R.id.title);
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if (tt != null) {
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tt.setText(cat.title);
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}
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TextView tu = (TextView) v.findViewById(R.id.unread_counter);
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if (tu != null) {
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tu.setText(String.valueOf(cat.unread));
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tu.setVisibility((cat.unread > 0) ? View.VISIBLE : View.INVISIBLE);
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}
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ImageView icon = (ImageView)v.findViewById(R.id.icon);
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if (icon != null) {
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icon.setImageResource(cat.unread > 0 ? R.drawable.ic_rss : R.drawable.ic_rss_bw);
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}
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return v;
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}
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}
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@Override
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public void onSharedPreferenceChanged(SharedPreferences sharedPreferences,
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String key) {
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sortCats();
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}
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@Override
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public void onItemClick(AdapterView<?> av, View view, int position, long id) {
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ListView list = (ListView)av;
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if (list != null) {
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FeedCategory cat = (FeedCategory)list.getItemAtPosition(position);
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m_catSelectedListener.onCatSelected(cat);
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m_selectedCatId = cat.id;
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m_adapter.notifyDataSetChanged();
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}
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}
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public void setSelectedCategory(FeedCategory cat) {
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m_selectedCatId = cat.id;
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m_adapter.notifyDataSetChanged();
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}
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}
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