implement headlines view

1 files changed, 169 insertions, 7 deletions

diff --git a/src/org/fox/ttrss/HeadlinesFragment.java b/src/org/fox/ttrss/HeadlinesFragment.java
index 9eb54c5f..6d14d55b 100644
--- a/src/org/fox/ttrss/HeadlinesFragment.java
+++ b/src/org/fox/ttrss/HeadlinesFragment.java
@@ -1,32 +1,58 @@
 package org.fox.ttrss;

 

+import java.lang.reflect.Type;

+import java.util.ArrayList;

+import java.util.HashMap;

+import java.util.List;

+

+import org.jsoup.Jsoup;

+

 import android.app.Activity;

 import android.app.Fragment;

-import android.app.FragmentTransaction;

+import android.content.Context;

 import android.content.SharedPreferences;

-import android.database.Cursor;

 import android.os.Bundle;

 import android.preference.PreferenceManager;

-import android.provider.OpenableColumns;

-import android.util.Log;

 import android.view.LayoutInflater;

 import android.view.View;

 import android.view.ViewGroup;

-import android.widget.AbsListView;

 import android.widget.AdapterView;

 import android.widget.AdapterView.OnItemClickListener;

+import android.widget.ArrayAdapter;

 import android.widget.ListView;

-import android.widget.SimpleCursorAdapter;

+import android.widget.TextView;

+

+import com.google.gson.Gson;

+import com.google.gson.JsonArray;

+import com.google.gson.JsonElement;

+import com.google.gson.JsonObject;

+import com.google.gson.reflect.TypeToken;

 

 public class HeadlinesFragment extends Fragment implements OnItemClickListener {

 	private final String TAG = this.getClass().getSimpleName();

 	protected SharedPreferences m_prefs;

 	

+	private String m_sessionId;

+	private int m_feedId;

+	

+	private ArticleListAdapter m_adapter;

+	private List<Article> m_articles = new ArrayList<Article>();

+	

 	@Override

 	public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {    	

 

+		if (savedInstanceState != null) {

+			m_sessionId = savedInstanceState.getString("sessionId");

+			m_feedId = savedInstanceState.getInt("feedId");

+		}

+

 		View view = inflater.inflate(R.layout.headlines_fragment, container, false);

 

+		ListView list = (ListView)view.findViewById(R.id.headlines);		

+		m_adapter = new ArticleListAdapter(getActivity(), R.layout.headlines_row, (ArrayList<Article>)m_articles);

+		list.setAdapter(m_adapter);

+		list.setOnItemClickListener(this);

+

 		return view;    	

 	}

 

@@ -39,13 +65,149 @@ public class HeadlinesFragment extends Fragment implements OnItemClickListener {
 

 	@Override

 	public void onItemClick(AdapterView<?> av, View view, int position, long id) {

+	

+	}

+

+	public void initialize(String sessionId, int feedId) {

+		m_sessionId = sessionId;

+		m_feedId = feedId;

+		refresh();		

+	} 

+

+	public void refresh() {

+		HeadlinesRequest req = new HeadlinesRequest();

 		

+		req.setApi(m_prefs.getString("ttrss_url", null));

+

+		HashMap<String,String> map = new HashMap<String,String>() {

+			{

+				put("op", "getHeadlines");

+				put("sid", m_sessionId);

+				put("feed_id", String.valueOf(m_feedId));

+				put("show_content", "true");

+				put("limit", String.valueOf(30));

+				put("offset", String.valueOf(0));

+				put("view_mode", "adaptive");

+			}			 

+		};

+

+		req.execute(map);

 	}

 

 	@Override

-	public void onSaveInstanceState (Bundle out) {		

+	public void onSaveInstanceState (Bundle out) {

 		super.onSaveInstanceState(out);

 		

+		out.putString("sessionId", m_sessionId);

+		out.putInt("feedId", m_feedId);		

+	}

+

+	private class HeadlinesRequest extends ApiRequest {

+		

+		protected void onPostExecute(JsonElement result) {

+			if (result != null) {

+				try {			

+					JsonObject rv = result.getAsJsonObject();

+

+					Gson gson = new Gson();

+					

+					int status = rv.get("status").getAsInt();

+					

+					if (status == 0) {

+						JsonArray content = rv.get("content").getAsJsonArray();

+						if (content != null) {

+							Type listType = new TypeToken<List<Article>>() {}.getType();

+							final List<Article> articles = gson.fromJson(content, listType);

+							

+							getActivity().runOnUiThread(new Runnable() {

+								public void run() {

+									m_articles.clear();

+									

+									for (Article f : articles) 

+										m_articles.add(f);

+									

+									m_adapter.notifyDataSetInvalidated();

+									

+									View v = getView().findViewById(R.id.loading_container);

+									v.setVisibility(View.GONE);

+								}

+							});

+						}

+					} else {

+						JsonObject content = rv.get("content").getAsJsonObject();

+						

+						if (content != null) {

+							String error = content.get("error").getAsString();

+

+							/* m_sessionId = null;

+

+							if (error.equals("LOGIN_ERROR")) {

+								setLoadingStatus(R.string.login_wrong_password, false);

+							} else if (error.equals("API_DISABLED")) {

+								setLoadingStatus(R.string.login_api_disabled, false);

+							} else {

+								setLoadingStatus(R.string.login_failed, false);

+							} */

+							

+							// TODO report error back to MainActivity

+						}							

+					}

+				} catch (Exception e) {

+					e.printStackTrace();

+					

+					MainActivity ma = (MainActivity)getActivity();

+					ma.toast("Error parsing headlines: incorrect format");

+				}

+			} else {

+				MainActivity ma = (MainActivity)getActivity();

+				ma.toast("Error parsing headlines: null object.");

+			}

+			

+			return;

+

+	    }

+	}

+	

+	private class ArticleListAdapter extends ArrayAdapter<Article> {

+		private ArrayList<Article> items;

+

+		public ArticleListAdapter(Context context, int textViewResourceId, ArrayList<Article> items) {

+			super(context, textViewResourceId, items);

+			this.items = items;

+		}

+		

+		@Override

+		public View getView(int position, View convertView, ViewGroup parent) {

+

+			View v = convertView;

+

+			Article article = items.get(position);

+

+			if (v == null) {

+				LayoutInflater vi = (LayoutInflater)getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE);

+				v = vi.inflate(R.layout.headlines_row, null);

+			}

+

+			TextView tt = (TextView) v.findViewById(R.id.title);

+

+			if (tt != null) {

+				tt.setText(article.title);

+				//tt.setTextAppearance(getContext(), R.style.Connection);

+			}

+

+			TextView te = (TextView) v.findViewById(R.id.excerpt);

+

+			if (te != null) {

+				String excerpt = Jsoup.parse(article.content).text(); 

+				

+				if (excerpt.length() > 250)

+					excerpt = excerpt.substring(0, 250) + "...";

+				

+				te.setText(excerpt);

+			}       	

+

+			return v;

+		}

 	}

 

 }