add open article in web browser to headline context menu

res/menu/headlines_context_menu.xml

@@ -18,6 +18,10 @@
             android:id="@+id/headlines_share_article"
             android:showAsAction=""
             android:title="@string/share_article"/>
+        <item
+            android:id="@+id/headlines_article_link_open"
+            android:showAsAction=""
+            android:title="@string/open_article_in_web_browser"/>
         <item
             android:id="@+id/headlines_article_link_copy"
             android:showAsAction=""

res/values/strings.xml

@@ -216,4 +216,5 @@
     <string name="unsubscribe">Unsubscribe</string>
     <string name="unsubscribe_from_prompt">Unsubscribe from %1$s?</string>
     <string name="toggle_sidebar">Toggle sidebar</string>
+    <string name="open_article_in_web_browser">Open in web browser</string>
 </resources>

src/org/fox/ttrss/HeadlinesFragment.java

@@ -17,11 +17,13 @@ import uk.co.senab.actionbarpulltorefresh.library.PullToRefreshAttacher.OnRefres
 
 import android.app.Activity;
 import android.content.Context;
+import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.res.Resources.Theme;
 import android.graphics.Paint;
 import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
+import android.net.Uri;
 import android.os.Bundle;
 import android.preference.PreferenceManager;
 import android.support.v4.app.Fragment;
@@ -135,6 +137,21 @@ public class HeadlinesFragment extends Fragment implements OnItemClickListener,
 				}
 			}
 			return true;
+		case R.id.headlines_article_link_open:
+			if (true) {
+				Article article = getArticleAtPosition(info.position);
+			
+				if (article != null) {
+					Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(article.link));
+					startActivity(browserIntent);
+
+					if (article.unread) {
+						article.unread = false;
+						m_activity.saveArticleUnread(article);
+					}
+				}
+			}
+			return true;
 		case R.id.selection_toggle_marked:
 			if (true) {
 				ArticleList selected = getSelectedArticles();