offline: various positioning fixes

org.fox.ttrss/src/main/java/org/fox/ttrss/offline/OfflineArticleFragment.java

@@ -10,6 +10,7 @@ import android.os.Bundle;
 import android.preference.PreferenceManager;
 import android.provider.BaseColumns;
 import android.support.v4.app.Fragment;
+import android.support.v7.app.ActionBar;
 import android.util.Log;
 import android.util.TypedValue;
 import android.view.ContextMenu;
@@ -22,12 +23,14 @@ import android.view.ViewGroup;
 import android.webkit.WebSettings;
 import android.webkit.WebView;
 import android.webkit.WebView.HitTestResult;
+import android.widget.ScrollView;
 import android.widget.TextView;
 
 import com.shamanland.fab.ShowHideOnScroll;
 
 import org.fox.ttrss.R;
 import org.fox.ttrss.util.ImageCacheService;
+import org.fox.ttrss.util.NotifyingScrollView;
 import org.jsoup.Jsoup;
 import org.jsoup.nodes.Document;
 import org.jsoup.nodes.Element;
@@ -130,9 +133,27 @@ public class OfflineArticleFragment extends Fragment {
 		if (m_cursor.isFirst()) {
             final String link = m_cursor.getString(m_cursor.getColumnIndex("link"));
 
-            View scrollView = view.findViewById(R.id.article_scrollview);
+            NotifyingScrollView scrollView = (NotifyingScrollView) view.findViewById(R.id.article_scrollview);
             View fab = view.findViewById(R.id.article_fab);
 
+            if (scrollView != null && m_activity.isSmallScreen()) {
+                view.findViewById(R.id.article_heading_spacer).setVisibility(View.VISIBLE);
+
+                scrollView.setOnScrollChangedListener(new NotifyingScrollView.OnScrollChangedListener() {
+                    @Override
+                    public void onScrollChanged(ScrollView who, int l, int t, int oldl, int oldt) {
+                        ActionBar ab = m_activity.getSupportActionBar();
+
+                        if (t >= oldt && t >= ab.getHeight()) {
+                            ab.hide();
+                        } else if (t <= ab.getHeight() | oldt - t >= 10) {
+                            ab.show();
+                        }
+
+                    }
+                });
+            }
+
             if (scrollView != null && fab != null) {
                 if (m_prefs.getBoolean("enable_article_fab", true)) {
                     scrollView.setOnTouchListener(new ShowHideOnScroll(fab));

org.fox.ttrss/src/main/java/org/fox/ttrss/offline/OfflineFeedCategoriesFragment.java

@@ -239,7 +239,7 @@ public class OfflineFeedCategoriesFragment extends Fragment implements OnItemCli
 		public int getItemViewType(int position) {
 			Cursor cursor = (Cursor) this.getItem(position);
 			
-			if (cursor.getLong(0) == m_selectedCatId) {
+			if (!m_activity.isSmallScreen() && cursor.getLong(0) == m_selectedCatId) {
 				return VIEW_SELECTED;
 			} else {
 				return VIEW_NORMAL;				

org.fox.ttrss/src/main/java/org/fox/ttrss/offline/OfflineFeedsFragment.java

@@ -277,7 +277,7 @@ public class OfflineFeedsFragment extends Fragment implements OnItemClickListene
 		public int getItemViewType(int position) {
 			Cursor cursor = (Cursor) this.getItem(position);
 			
-			if (cursor.getLong(0) == m_selectedFeedId) {
+			if (!m_activity.isSmallScreen() && cursor.getLong(0) == m_selectedFeedId) {
 				return VIEW_SELECTED;
 			} else {
 				return VIEW_NORMAL;				

org.fox.ttrss/src/main/java/org/fox/ttrss/offline/OfflineHeadlinesActivity.java

@@ -48,6 +48,8 @@ public class OfflineHeadlinesActivity extends OfflineActivity implements Offline
                 public void onDrawerOpened(View drawerView) {
                     super.onDrawerOpened(drawerView);
 
+                    getSupportActionBar().show();
+
                     invalidateOptionsMenu();
                 }
 

org.fox.ttrss/src/main/java/org/fox/ttrss/offline/OfflineHeadlinesFragment.java

@@ -71,6 +71,7 @@ public class OfflineHeadlinesFragment extends Fragment implements OnItemClickLis
 
     private boolean m_compactLayoutMode = false;
     private ListView m_list;
+    private int m_listPreviousVisibleItem;
 	
 	public void initialize(int feedId, boolean isCat, boolean compactMode) {
 		m_feedId = feedId;
@@ -811,18 +812,20 @@ public class OfflineHeadlinesFragment extends Fragment implements OnItemClickLis
 	}
 
 	public Cursor getArticleAtPosition(int position) {
-		return (Cursor) m_adapter.getItem(position);
+		return (Cursor) m_list.getItemAtPosition(position);
 	}
 
 	public int getArticleIdAtPosition(int position) {
-		/*Cursor c = getArticleAtPosition(position);
+		Cursor c = getArticleAtPosition(position);
 		
 		if (c != null) {
 			int id = c.getInt(0);
 			return id;
-		}		*/
+		}
 
-		return (int) m_adapter.getItemId(position);
+        return 0;
+
+		//return (int) m_adapter.getItemId(position + m_list.getHeaderViewsCount());
 	}
 
 	public int getActiveArticleId() {
@@ -832,7 +835,7 @@ public class OfflineHeadlinesFragment extends Fragment implements OnItemClickLis
 	public int getArticleIdPosition(int articleId) {
 		for (int i = 0; i < m_adapter.getCount(); i++) {
 			if (articleId == m_adapter.getItemId(i))
-				return i;
+				return i + m_list.getHeaderViewsCount();
 		}
 		
 		return -1;
@@ -862,7 +865,7 @@ public class OfflineHeadlinesFragment extends Fragment implements OnItemClickLis
 
     @Override
     public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
-        if (m_prefs.getBoolean("headlines_mark_read_scroll", false) && firstVisibleItem > 0) {
+        if (m_prefs.getBoolean("headlines_mark_read_scroll", false) && firstVisibleItem > (m_activity.isSmallScreen() ? 1 : 0)) {
             //Article a = m_articles.get(firstVisibleItem - 1);
 
             Cursor article = getArticleAtPosition(firstVisibleItem - 1);
@@ -876,6 +879,20 @@ public class OfflineHeadlinesFragment extends Fragment implements OnItemClickLis
                 }
             }
         }
+
+        if (!m_activity.isTablet()) {
+            if (m_adapter.getCount() > 0) {
+                if (firstVisibleItem > m_listPreviousVisibleItem) {
+                    m_activity.getSupportActionBar().hide();
+                } else if (firstVisibleItem < m_listPreviousVisibleItem) {
+                    m_activity.getSupportActionBar().show();
+                }
+            } else {
+                m_activity.getSupportActionBar().show();
+            }
+
+            m_listPreviousVisibleItem = firstVisibleItem;
+        }
     }
 
     @Override