implement application singleton to store retrieved headlines

activities

AndroidManifest.xml

@@ -13,6 +13,7 @@
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
 
     <application
+        android:name="TinyApplication"
         android:allowBackup="true"
         android:backupAgent=".util.PrefsBackupAgent"
         android:hardwareAccelerated="true"

src/org/fox/ttrss/ArticlePager.java

@@ -49,11 +49,10 @@ public class ArticlePager extends Fragment {
 		super();
 	}
 	
-	public ArticlePager(Article article, ArticleList articles) {
+	public ArticlePager(Article article) {
 		super();
 		
 		m_article = article;
-		m_articles = articles;
 	}
 	
 	@Override
@@ -88,6 +87,8 @@ public class ArticlePager extends Fragment {
 				Article article = m_articles.get(position);
 				
 				if (article != null) {
+					m_article = article;
+					
 					if (article.unread) {
 						article.unread = false;
 						m_onlineServices.saveArticleUnread(article);
@@ -121,6 +122,8 @@ public class ArticlePager extends Fragment {
 		super.onAttach(activity);		
 		
 		m_onlineServices = (HeadlinesEventListener)activity;
+		
+		m_articles = TinyApplication.getInstance().m_articles;
 	}
 	
 	@Override

src/org/fox/ttrss/FeedsActivity.java

@@ -208,7 +208,7 @@ public class FeedsActivity extends OnlineActivity implements HeadlinesEventListe
 				
 				HeadlinesFragment hf = (HeadlinesFragment) getSupportFragmentManager().findFragmentByTag(FRAG_HEADLINES);
 				
-				Fragment frag = new ArticlePager(article, hf.getAllArticles());
+				Fragment frag = new ArticlePager(article);
 
 				ft.replace(R.id.feeds_fragment, frag, FRAG_ARTICLE);
 				ft.addToBackStack(null);

src/org/fox/ttrss/HeadlinesActivity.java

@@ -52,14 +52,8 @@ private final String TAG = this.getClass().getSimpleName();
 				Article activeArticle = i.getParcelableExtra("activeArticle");
 				Article article = i.getParcelableExtra("article");
 				
-				ArrayList<Article> alist = i.getParcelableArrayListExtra("articles");
-				ArticleList articles  = new ArticleList();
-				
-				for (Article a : alist)
-					articles.add(a);
-
-				HeadlinesFragment hf = new HeadlinesFragment(feed, activeArticle, articles);
-				ArticlePager af = new ArticlePager(hf.getArticleById(article.id), hf.getAllArticles());
+				HeadlinesFragment hf = new HeadlinesFragment(feed, activeArticle);
+				ArticlePager af = new ArticlePager(hf.getArticleById(article.id));
 
 				FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 
@@ -147,7 +141,7 @@ private final String TAG = this.getClass().getSimpleName();
 			
 			HeadlinesFragment hf = (HeadlinesFragment) getSupportFragmentManager().findFragmentByTag(FRAG_HEADLINES);
 			
-			Fragment frag = new ArticlePager(article, hf.getAllArticles());
+			Fragment frag = new ArticlePager(article);
 
 			ft.replace(R.id.article_fragment, frag, FRAG_ARTICLE);
 			//ft.addToBackStack(null);
@@ -156,6 +150,7 @@ private final String TAG = this.getClass().getSimpleName();
 		} else {
 			HeadlinesFragment hf = (HeadlinesFragment) getSupportFragmentManager().findFragmentByTag(FRAG_HEADLINES);
 			if (hf != null) hf.setActiveArticle(article);
+			initMenu();
 		}
 		
 	}

src/org/fox/ttrss/HeadlinesFragment.java

@@ -71,12 +71,11 @@ public class HeadlinesFragment extends Fragment implements OnItemClickListener,
 	private boolean m_canLoadMore = false;
 	private boolean m_combinedMode = true;
 	private String m_searchQuery = "";
-	private boolean m_noRefresh = false;
 	
 	private SharedPreferences m_prefs;
 	
 	private ArticleListAdapter m_adapter;
-	private ArticleList m_articles = new ArticleList();
+	private ArticleList m_articles = TinyApplication.getInstance().m_articles;
 	private ArticleList m_selectedArticles = new ArticleList();
 	private HeadlinesEventListener m_listener;
 	
@@ -98,11 +97,9 @@ public class HeadlinesFragment extends Fragment implements OnItemClickListener,
 		m_feed = feed;
 	}
 	
-	public HeadlinesFragment(Feed feed, Article activeArticle, ArticleList articles) {
+	public HeadlinesFragment(Feed feed, Article activeArticle) {
 		m_feed = feed;
 		m_activeArticle = activeArticle;
-		m_articles = articles;			
-		m_noRefresh = true;
 	}
 	
 	public HeadlinesFragment() {
@@ -268,7 +265,7 @@ public class HeadlinesFragment extends Fragment implements OnItemClickListener,
 		
 		if (savedInstanceState != null) {
 			m_feed = savedInstanceState.getParcelable("feed");
-			m_articles = savedInstanceState.getParcelable("articles");
+			//m_articles = savedInstanceState.getParcelable("articles");
 			m_activeArticle = savedInstanceState.getParcelable("activeArticle");
 			m_selectedArticles = savedInstanceState.getParcelable("selectedArticles");
 			m_canLoadMore = savedInstanceState.getBoolean("canLoadMore");			
@@ -297,10 +294,10 @@ public class HeadlinesFragment extends Fragment implements OnItemClickListener,
 	@Override
 	public void onResume() {
 		super.onResume();
-		
-		if (!m_noRefresh) {
+
+		if (m_articles.size() == 0 || !m_feed.equals(TinyApplication.getInstance().m_feed)) {
 			refresh(false);
-			m_noRefresh = false;
+			TinyApplication.getInstance().m_feed = m_feed;
 		}
 		
 		m_activity.initMenu();
@@ -349,6 +346,10 @@ public class HeadlinesFragment extends Fragment implements OnItemClickListener,
 		final boolean isCat = m_feed.is_cat;
 		int skip = 0;
 		
+		if (!m_feed.equals(TinyApplication.getInstance())) {
+			append = false;
+		}
+		
 		if (append) {
 			for (Article a : m_articles) {
 				if (a.unread) ++skip;
@@ -393,7 +394,7 @@ public class HeadlinesFragment extends Fragment implements OnItemClickListener,
 		super.onSaveInstanceState(out);
 		
 		out.putParcelable("feed", m_feed);
-		out.putParcelable("articles", m_articles);
+		//out.putParcelable("articles", m_articles);
 		out.putParcelable("activeArticle", m_activeArticle);
 		out.putParcelable("selectedArticles", m_selectedArticles);
 		out.putBoolean("canLoadMore", m_canLoadMore);

src/org/fox/ttrss/TinyApplication.java

@@ -0,0 +1,25 @@
+package org.fox.ttrss;
+
+import org.fox.ttrss.types.Article;
+import org.fox.ttrss.types.ArticleList;
+import org.fox.ttrss.types.Feed;
+
+import android.app.Application;
+
+public class TinyApplication extends Application {
+	private static TinyApplication m_singleton;
+	
+	public ArticleList m_articles = new ArticleList();
+	public Feed m_feed;
+	public Article m_selectedArticle;
+	
+	public static TinyApplication getInstance(){
+		return m_singleton;
+	}
+	
+	@Override
+	public final void onCreate() {
+		super.onCreate();
+		m_singleton = this;
+	}	
+}

src/org/fox/ttrss/types/Feed.java

@@ -28,6 +28,13 @@ public class Feed implements Comparable<Feed>, Parcelable {
 		
 	}
 	
+	public boolean equals(Feed feed) {
+		if (feed == this) 
+			return true;
+		
+		return feed.id == this.id && (this.title == null || this.title.equals(feed.title)) && this.is_cat == feed.is_cat;
+	}
+	
 	@Override
 	public int compareTo(Feed feed) {
 		if (feed.unread != this.unread)