handle login/logout and session errors in child fragments

res/layout/main.xml

@@ -1,12 +1,10 @@
-<ViewFlipper xmlns:android="http://schemas.android.com/apk/res/android"
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="fill_parent"    
     android:layout_height="fill_parent" android:id="@+id/main_flipper">
-    <FrameLayout android:layout_gravity="center_vertical" android:layout_height="match_parent" android:layout_width="match_parent" android:id="@+id/sync_splash">
+    <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:gravity="center" android:id="@+id/loading_container">
-        <LinearLayout android:layout_width="match_parent" android:gravity="center" android:layout_height="match_parent" android:id="@+id/linearLayout1">
+        <ProgressBar android:id="@+id/loading_progress" android:layout_height="wrap_content" android:layout_width="wrap_content" style="?android:attr/progressBarStyleLarge"></ProgressBar>
-            <ProgressBar android:layout_height="wrap_content" android:layout_width="wrap_content" style="?android:attr/progressBarStyleLarge" android:id="@+id/loading_progress"></ProgressBar>
+        <TextView android:textAppearance="?android:attr/textAppearanceLarge" android:text="@string/loading_message" android:layout_height="wrap_content" android:layout_width="wrap_content" android:id="@+id/loading_message"></TextView>
-            <TextView android:id="@+id/loading_message" android:text="@string/loading_message" android:textAppearance="?android:attr/textAppearanceLarge" android:layout_height="wrap_content" android:layout_width="wrap_content"></TextView>
     </LinearLayout>
-    </FrameLayout>
     <LinearLayout android:layout_height="fill_parent" android:orientation="horizontal" android:id="@+id/main" android:layout_width="fill_parent">
         <FrameLayout android:layout_height="match_parent" android:layout_width="300dp" android:layout_weight="0" android:id="@+id/feeds_fragment"></FrameLayout>
         <FrameLayout android:layout_height="match_parent" android:layout_width="0dp" android:layout_weight="0.5" android:id="@+id/headlines_fragment"></FrameLayout>
@@ -14,4 +12,4 @@
     </LinearLayout>
     
     
-</ViewFlipper>
+</FrameLayout>

res/menu/main_menu.xml

@@ -1,11 +1,25 @@
 
     <menu xmlns:android="http://schemas.android.com/apk/res/android">
+    
+    <item android:id="@+id/login"
+    	  android:visible="false"
+          android:icon="@android:drawable/ic_menu_rotate"
+          android:title="@string/login" 
+          android:showAsAction="ifRoom|withText"/>
+
+    <item android:id="@+id/logout"
+    	  android:visible="false"
+          android:title="@string/logout" 
+          android:showAsAction=""/>
+    
     <item android:id="@+id/show_feeds"
+    	  android:visible="false"    	  
           android:icon="@android:drawable/ic_menu_rotate"
           android:title="@string/menu_all_feeds" 
           android:showAsAction=""/>
           
      <item android:id="@+id/update"
+     	  android:visible="false"
           android:icon="@android:drawable/ic_menu_rotate"
           android:title="@string/update" 
           android:showAsAction="ifRoom|withText"/>

src/org/fox/ttrss/FeedsFragment.java

@@ -183,23 +183,9 @@ public class FeedsFragment extends Fragment implements OnItemClickListener {
 								});
 							}
 						} else {
-							JsonObject content = rv.get("content").getAsJsonObject();
+							MainActivity activity = (MainActivity)getActivity();							
-							
+							activity.login();
-							if (content != null) {
+							showLoading(false);
-								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();

src/org/fox/ttrss/HeadlinesFragment.java

@@ -39,7 +39,7 @@ public class HeadlinesFragment extends Fragment implements OnItemClickListener {
 	private final String TAG = this.getClass().getSimpleName();
 	protected SharedPreferences m_prefs;
 	
-	private String m_sessionId;
+	//private String m_sessionId;
 	private Feed m_feed;
 	//private int m_activeArticleId;
 	private int m_selectedArticleId;
@@ -55,7 +55,7 @@ public class HeadlinesFragment extends Fragment implements OnItemClickListener {
 	public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {    	
 
 		if (savedInstanceState != null) {
-			m_sessionId = savedInstanceState.getString("sessionId");
+			//m_sessionId = savedInstanceState.getString("sessionId");
 			//m_feedId = savedInstanceState.getInt("feedId");
 			//m_activeArticleId = savedInstanceState.getInt("activeArticleId");
 		}
@@ -90,10 +90,7 @@ public class HeadlinesFragment extends Fragment implements OnItemClickListener {
 	public void onAttach(Activity activity) {
 		super.onAttach(activity);
 		m_prefs = PreferenceManager.getDefaultSharedPreferences(getActivity().getApplicationContext());
-		
-		m_sessionId = ((MainActivity)activity).getSessionId();
 		m_feed = ((MainActivity)activity).getActiveFeed();
-		
 		m_articleSelectedListener = (OnArticleSelectedListener) activity;
 	}
 
@@ -118,10 +115,12 @@ public class HeadlinesFragment extends Fragment implements OnItemClickListener {
 		
 		req.setApi(m_prefs.getString("ttrss_url", null));
 		
+		final String sessionId = ((MainActivity)getActivity()).getSessionId();
+
 		HashMap<String,String> map = new HashMap<String,String>() {
 			{
 				put("op", "getHeadlines");
-				put("sid", m_sessionId);
+				put("sid", sessionId);
 				put("feed_id", String.valueOf(m_feed.id));
 				put("show_content", "true");
 				put("limit", String.valueOf(30));
@@ -138,7 +137,7 @@ public class HeadlinesFragment extends Fragment implements OnItemClickListener {
 	public void onSaveInstanceState (Bundle out) {
 		super.onSaveInstanceState(out);
 		
-		out.putString("sessionId", m_sessionId);
+		//out.putString("sessionId", m_sessionId);
 		//out.putInt("feedId", m_feedId);		
 		//out.putInt("activeArticleId", m_activeArticleId);
 	}
@@ -174,23 +173,9 @@ public class HeadlinesFragment extends Fragment implements OnItemClickListener {
 							});
 						}
 					} else {
-						JsonObject content = rv.get("content").getAsJsonObject();
+						MainActivity activity = (MainActivity)getActivity();							
-						
+						activity.login();
-						if (content != null) {
+						showLoading(false);
-							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();
@@ -212,9 +197,11 @@ public class HeadlinesFragment extends Fragment implements OnItemClickListener {
 		ApiRequest ar = new ApiRequest();
 		ar.setApi(m_prefs.getString("ttrss_url", null));
 
+		final String sessionId = ((MainActivity)getActivity()).getSessionId();
+
 		HashMap<String,String> map = new HashMap<String,String>() {
 			{
-				put("sid", m_sessionId);
+				put("sid", sessionId);
 				put("op", "updateArticle");
 				put("article_ids", String.valueOf(article.id));
 				put("mode", "0");

src/org/fox/ttrss/MainActivity.java

@@ -17,7 +17,6 @@ import android.view.MenuItem;
 import android.view.View;
 import android.widget.TextView;
 import android.widget.Toast;
-import android.widget.ViewFlipper;
 
 import com.google.gson.JsonElement;
 import com.google.gson.JsonObject;
@@ -107,20 +106,7 @@ public class MainActivity extends Activity implements FeedsFragment.OnFeedSelect
 		
 		findViewById(R.id.article_fragment).setVisibility(View.GONE);
 
-		LoginRequest ar = new LoginRequest();
+		login();
-		ar.setApi(m_prefs.getString("ttrss_url", null));
-
-		HashMap<String,String> map = new HashMap<String,String>() {
-			{
-				put("op", "login");
-				put("user", m_prefs.getString("login", null));
-				put("password", m_prefs.getString("password", null));
-			}			 
-		};
-
-		ar.execute(map);
-		
-		setLoadingStatus(R.string.login_in_progress, true);
 	
 	}
 
@@ -199,6 +185,12 @@ public class MainActivity extends Activity implements FeedsFragment.OnFeedSelect
 		case R.id.update:
 			refreshFeeds();
 			return true;
+		case R.id.logout:
+			logout();
+			return true;
+		case R.id.login:
+			login();
+			return true;
 		case R.id.show_feeds:
 			if (getUnreadOnly()) {
 				item.setTitle(R.string.menu_unread_feeds);
@@ -229,11 +221,8 @@ public class MainActivity extends Activity implements FeedsFragment.OnFeedSelect
 							
 							setLoadingStatus(R.string.loading_message, true);
 							
-							ViewFlipper vf = (ViewFlipper) findViewById(R.id.main_flipper);
+							findViewById(R.id.loading_container).setVisibility(View.INVISIBLE);
-							
+							findViewById(R.id.main).setVisibility(View.VISIBLE);
-							if (vf != null) {
-								vf.showNext();
-							}
 							
 							FeedsFragment frag = new FeedsFragment();
 							
@@ -242,6 +231,11 @@ public class MainActivity extends Activity implements FeedsFragment.OnFeedSelect
 							ft.show(frag);
 							ft.commit();
 							
+							m_menu.findItem(R.id.login).setVisible(false);
+							m_menu.findItem(R.id.logout).setVisible(true);
+							m_menu.findItem(R.id.update).setVisible(true);
+							m_menu.findItem(R.id.show_feeds).setVisible(true);
+							
 							if (m_refreshTask != null) {
 								m_refreshTask.cancel();
 								m_refreshTask = null;
@@ -272,6 +266,8 @@ public class MainActivity extends Activity implements FeedsFragment.OnFeedSelect
 							} else {
 								setLoadingStatus(R.string.login_failed, false);
 							}
+							
+							m_menu.findItem(R.id.login).setVisible(true);
 						}							
 					}
 				} catch (Exception e) {
@@ -325,4 +321,47 @@ public class MainActivity extends Activity implements FeedsFragment.OnFeedSelect
 	public Feed getActiveFeed() {
 		return m_activeFeed;
 	}
+
+	public void logout() {
+		findViewById(R.id.loading_container).setVisibility(View.VISIBLE);
+		findViewById(R.id.main).setVisibility(View.INVISIBLE);
+		
+		if (m_menu != null) {
+			m_menu.findItem(R.id.logout).setVisible(false);
+			m_menu.findItem(R.id.update).setVisible(false);
+			m_menu.findItem(R.id.show_feeds).setVisible(false);
+		}
+		
+		if (m_refreshTask != null) {
+			m_refreshTask.cancel();
+			m_refreshTask = null;
+		}
+		
+		if (m_refreshTimer != null) {
+			m_refreshTimer.cancel();
+			m_refreshTimer = null;
+		}
+
+		m_sessionId = null;
+	}
+
+	public void login() {		
+
+		logout();
+		
+		LoginRequest ar = new LoginRequest();
+		ar.setApi(m_prefs.getString("ttrss_url", null));
+
+		HashMap<String,String> map = new HashMap<String,String>() {
+			{
+				put("op", "login");
+				put("user", m_prefs.getString("login", null));
+				put("password", m_prefs.getString("password", null));
+			}			 
+		};
+
+		ar.execute(map);
+		
+		setLoadingStatus(R.string.login_in_progress, true);		
+	}
 }