implement API level checking

src/org/fox/ttrss/ApiRequest.java

@@ -47,7 +47,7 @@ public class ApiRequest extends AsyncTask<HashMap<String,String>, Integer, JsonE
 	private boolean m_transportDebugging = false;
 	protected int m_httpStatusCode = 0;
 	protected int m_apiStatusCode = 0;
-	private Context m_context;
+	protected Context m_context;
 	private SharedPreferences m_prefs;
 	
 	protected ApiError m_lastError;

src/org/fox/ttrss/FeedCategoriesFragment.java

@@ -35,7 +35,7 @@ public class FeedCategoriesFragment extends Fragment implements OnItemClickListe
 	private SharedPreferences m_prefs;
 	private FeedCategoryListAdapter m_adapter;
 	private FeedCategoryList m_cats = new FeedCategoryList();
-	private int m_selectedCatId;
+	private int m_selectedCatId = -100;
 	private OnCatSelectedListener m_catSelectedListener;
 
 	public interface OnCatSelectedListener {
@@ -172,6 +172,15 @@ public class FeedCategoriesFragment extends Fragment implements OnItemClickListe
 						
 						m_cats.clear();
 						
+						int apiLevel = ((MainActivity)getActivity()).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);
 						

src/org/fox/ttrss/FeedCategory.java

@@ -12,6 +12,12 @@ public class FeedCategory implements Parcelable {
 		readFromParcel(in);
 	}
 	
+	public FeedCategory(int id, String title, int unread) {
+		this.id = id;
+		this.title = title;
+		this.unread = unread;
+	}
+
 	@Override
 	public int describeContents() {
 		return 0;

src/org/fox/ttrss/FeedsFragment.java

@@ -160,14 +160,14 @@ public class FeedsFragment extends Fragment implements OnItemClickListener, OnSh
 
 	@SuppressWarnings({ "unchecked", "serial" })
 	public void refresh(boolean background) {
-		FeedsRequest req = new FeedsRequest(getActivity().getApplicationContext());
+		FeedCategory cat = ((MainActivity)getActivity()).getActiveCategory();
+
+		final int catId = (cat != null) ? cat.id : -4;
 		
 		final String sessionId = ((MainActivity)getActivity()).getSessionId();
 		final boolean unreadOnly = ((MainActivity)getActivity()).getUnreadOnly();
-		
+
-		FeedCategory cat = ((MainActivity)getActivity()).getActiveCategory();
+		FeedsRequest req = new FeedsRequest(getActivity().getApplicationContext(), catId);
-		
-		final int catId = (cat != null) ? cat.id : -4;
 		
 		if (sessionId != null) {
 			
@@ -257,9 +257,11 @@ public class FeedsFragment extends Fragment implements OnItemClickListener, OnSh
 	}
 	
 	private class FeedsRequest extends ApiRequest {
+		private int m_catId;
 			
-		public FeedsRequest(Context context) {
+		public FeedsRequest(Context context, int catId) {
 			super(context);
+			m_catId = catId;
 		}
 		
 		protected void onPostExecute(JsonElement result) {
@@ -274,7 +276,7 @@ public class FeedsFragment extends Fragment implements OnItemClickListener, OnSh
 						m_feeds.clear();
 						
 						for (Feed f : feeds)
-							if (f.id > -10) // skip labels for now
+							if (f.id > -10 || m_catId != -4) // skip labels for flat feedlist for now
 								m_feeds.add(f);
 						
 						sortFeeds();

src/org/fox/ttrss/MainActivity.java

@@ -46,6 +46,7 @@ public class MainActivity extends FragmentActivity implements FeedsFragment.OnFe
 	private boolean m_canLoadMore = true;
 	private boolean m_compatMode = false;
 	private boolean m_enableCats = false;
+	private int m_apiLevel = 0;
 
 	public void updateHeadlines() {
 		HeadlinesFragment frag = (HeadlinesFragment)getSupportFragmentManager().findFragmentById(R.id.headlines_fragment);
@@ -54,6 +55,10 @@ public class MainActivity extends FragmentActivity implements FeedsFragment.OnFe
 		}
 	}
 	
+	public int getApiLevel() {
+		return m_apiLevel;
+	}
+	
 	@SuppressWarnings({ "unchecked", "serial" })
 	public void saveArticleUnread(final Article article) {
 		ApiRequest req = new ApiRequest(getApplicationContext());
@@ -203,6 +208,7 @@ public class MainActivity extends FragmentActivity implements FeedsFragment.OnFe
 			m_unreadArticlesOnly = savedInstanceState.getBoolean("unreadArticlesOnly");
 			m_canLoadMore = savedInstanceState.getBoolean("canLoadMore");
 			m_activeCategory = savedInstanceState.getParcelable("activeCategory");
+			m_apiLevel = savedInstanceState.getInt("apiLevel");
 		}
 		
 		m_enableCats = m_prefs.getBoolean("enable_cats", false);
@@ -302,6 +308,7 @@ public class MainActivity extends FragmentActivity implements FeedsFragment.OnFe
 		out.putBoolean("unreadArticlesOnly", m_unreadArticlesOnly);
 		out.putBoolean("canLoadMore", m_canLoadMore);
 		out.putParcelable("activeCategory", m_activeCategory);
+		out.putInt("apiLevel", m_apiLevel);
 	}
 
 	@Override
@@ -428,7 +435,10 @@ public class MainActivity extends FragmentActivity implements FeedsFragment.OnFe
 			startActivityForResult(intent, 0);
 			return true;
 		case R.id.update_feeds:
-			refreshFeeds();
+			if (!m_enableCats || m_activeCategory != null )
+				refreshFeeds();
+			else
+				refreshCategories();
 			return true;
 		case R.id.logout:
 			logout();
@@ -644,19 +654,42 @@ public class MainActivity extends FragmentActivity implements FeedsFragment.OnFe
 						
 						Log.d(TAG, "Authenticated!");
 						
+						ApiRequest req = new ApiRequest(m_context) {
+							protected void onPostExecute(JsonElement result) {
+								if (result != null) {
+									m_apiLevel = result.getAsJsonObject().get("level").getAsInt();
+								} else {
+									m_apiLevel = 0;
+								}
+								
+								Log.d(TAG, "Received API level: " + m_apiLevel);
+								
+								FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
+								
+								if (m_enableCats) {
+									FeedCategoriesFragment frag = new FeedCategoriesFragment();
+									ft.replace(R.id.cats_fragment, frag);
+								} else {
+									FeedsFragment frag = new FeedsFragment(); 
+									ft.replace(R.id.feeds_fragment, frag);
+								}
+
+								ft.commit();
+
+							}
+						};
+						
+						HashMap<String,String> map = new HashMap<String,String>() {
+							{
+								put("sid", m_sessionId);
+								put("op", "getApiLevel");
+							}			 
+						};
+
+						req.execute(map);
+						
 						setLoadingStatus(R.string.loading_message, true);
 
-						FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
-						
-						if (m_enableCats) {
-							FeedCategoriesFragment frag = new FeedCategoriesFragment();
-							ft.replace(R.id.cats_fragment, frag);
-						} else {
-							FeedsFragment frag = new FeedsFragment(); 
-							ft.replace(R.id.feeds_fragment, frag);
-						}
-
-						ft.commit();
 						
 						loginSuccess();
 						return;