Email viewing structure

src/i2p/bote/FolderFragment.java

@@ -7,10 +7,13 @@ import i2p.bote.email.Email;
 import i2p.bote.fileencryption.PasswordException;
 import i2p.bote.folder.EmailFolder;
 import i2p.bote.util.BoteHelper;
+import android.app.Activity;
 import android.os.Bundle;
 import android.support.v4.app.ListFragment;
 import android.support.v4.app.LoaderManager;
 import android.support.v4.content.Loader;
+import android.view.View;
+import android.widget.ListView;
 
 public class FolderFragment extends ListFragment implements
         LoaderManager.LoaderCallbacks<List<Email>> {
@@ -18,6 +21,8 @@ public class FolderFragment extends ListFragment implements
 
     private static final int EMAIL_LIST_LOADER = 1;
 
+    OnEmailSelectedListener mCallback;
+
     private EmailListAdapter mAdapter;
     private EmailFolder mFolder;
 
@@ -29,6 +34,25 @@ public class FolderFragment extends ListFragment implements
         return f;
     }
 
+    // Container Activity must implement this interface
+    public interface OnEmailSelectedListener {
+        public void onEmailSelected(String folderName, String messageId);
+    }
+
+    @Override
+    public void onAttach(Activity activity) {
+        super.onAttach(activity);
+
+        // This makes sure that the container activity has implemented
+        // the callback interface. If not, it throws an exception
+        try {
+            mCallback = (OnEmailSelectedListener) activity;
+        } catch (ClassCastException e) {
+            throw new ClassCastException(activity.toString()
+                    + " must implement OnEmailSelectedListener");
+        }
+    }
+
     @Override
     public void onActivityCreated(Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
@@ -60,6 +84,13 @@ public class FolderFragment extends ListFragment implements
         }
     }
 
+    @Override
+    public void onListItemClick(ListView parent, View view, int pos, long id) {
+        super.onListItemClick(parent, view, pos, id);
+        mCallback.onEmailSelected(
+                mFolder.getName(), mAdapter.getItem(pos).getMessageID());
+    }
+
     // LoaderManager.LoaderCallbacks<List<Email>>
 
     public Loader<List<Email>> onCreateLoader(int id, Bundle args) {

src/i2p/bote/MailListActivity.java

@@ -3,6 +3,7 @@ package i2p.bote;
 import i2p.bote.folder.EmailFolder;
 import android.os.Bundle;
 import android.content.Context;
+import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.res.Configuration;
 import android.support.v4.app.ActionBarDrawerToggle;
@@ -15,7 +16,8 @@ import android.view.View;
 import android.widget.AdapterView;
 import android.widget.ListView;
 
-public class MailListActivity extends ActionBarActivity {
+public class MailListActivity extends ActionBarActivity implements
+        FolderFragment.OnEmailSelectedListener {
     private CharSequence mDrawerTitle;
     private CharSequence mTitle;
     private SharedPreferences mSharedPrefs;
@@ -195,4 +197,16 @@ public class MailListActivity extends ActionBarActivity {
             System.setProperty("wrapper.logfile", myDir + "/wrapper.log");
         }
     }
+
+    // FolderFragment.OnEmailSelectedListener
+
+    @Override
+    public void onEmailSelected(String folderName, String messageId) {
+        // In single-pane mode, simply start the detail activity
+        // for the selected message ID.
+        Intent detailIntent = new Intent(this, ViewEmailActivity.class);
+        detailIntent.putExtra(ViewEmailActivity.FOLDER_NAME, folderName);
+        detailIntent.putExtra(ViewEmailActivity.MESSAGE_ID, messageId);
+        startActivity(detailIntent);
+    }
 }

src/i2p/bote/ViewEmailActivity.java

@@ -0,0 +1,92 @@
+package i2p.bote;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import i2p.bote.folder.EmailFolder;
+import i2p.bote.util.BoteHelper;
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentManager;
+import android.support.v4.app.FragmentStatePagerAdapter;
+import android.support.v4.view.PagerAdapter;
+import android.support.v4.view.ViewPager;
+import android.support.v7.app.ActionBarActivity;
+
+public class ViewEmailActivity extends ActionBarActivity {
+    public static final String FOLDER_NAME = "folder_name";
+    public static final String MESSAGE_ID = "message_id";
+
+    private EmailFolder mFolder;
+    private ViewPager mPager;
+    private ViewEmailPagerAdapter mPagerAdapter;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_view_email);
+
+        Intent i = getIntent();
+        String folderName = i.getStringExtra(FOLDER_NAME);
+        mFolder = BoteHelper.getMailFolder(
+                folderName == null ? "inbox" : folderName);
+        String messageId = i.getStringExtra(MESSAGE_ID);
+
+        // Instantiate the ViewPager and PagerAdapter
+        mPager = (ViewPager) findViewById(R.id.pager);
+        mPagerAdapter = new ViewEmailPagerAdapter(getSupportFragmentManager());
+        mPager.setAdapter(mPagerAdapter);
+
+        // Start with a "fake" list of messageIds containing only
+        // the selected messageId, so the UI starts up quickly
+        List<String> messageIds = new ArrayList<String>();
+        messageIds.add(messageId);
+        mPagerAdapter.setData(messageIds);
+
+        // Now fire off a Loader to fetch the real list
+        // TODO: Implement
+    }
+
+    private class ViewEmailPagerAdapter extends FragmentStatePagerAdapter {
+        private List<String> mIds;
+
+        public ViewEmailPagerAdapter(FragmentManager fm) {
+            super(fm);
+        }
+
+        public void setData(List<String> data) {
+            mIds = data;
+            notifyDataSetChanged();
+        }
+
+        @Override
+        public Fragment getItem(int position) {
+            if (mIds == null)
+                return null;
+
+            return ViewEmailFragment.newInstance(
+                    mFolder.getName(), mIds.get(position));
+        }
+
+        @Override
+        public int getItemPosition(Object item) {
+            ViewEmailFragment f = (ViewEmailFragment) item;
+            String messageId = f.getMessageId();
+            int position = mIds.indexOf(messageId);
+
+            if (position >= 0)
+                return position;
+            else
+                return POSITION_NONE;
+        }
+
+        @Override
+        public int getCount() {
+            if (mIds == null)
+                return 0;
+            else
+                return mIds.size();
+        }
+    }
+}

src/i2p/bote/ViewEmailFragment.java

@@ -0,0 +1,65 @@
+package i2p.bote;
+
+import javax.mail.MessagingException;
+
+import i2p.bote.email.Email;
+import i2p.bote.fileencryption.PasswordException;
+import i2p.bote.util.BoteHelper;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+public class ViewEmailFragment extends Fragment {
+    private String mFolderName;
+    private String mMessageId;
+
+    public static ViewEmailFragment newInstance(
+            String folderName, String messageId) {
+        ViewEmailFragment f = new ViewEmailFragment();
+
+        Bundle args = new Bundle();
+        args.putString("folderName", folderName);
+        args.putString("messageId", messageId);
+        f.setArguments(args);
+
+        return f;
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        mFolderName = getArguments() != null ? getArguments().getString("folderName") : "inbox";
+        mMessageId = getArguments() != null ? getArguments().getString("messageId") : "1";
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+            Bundle savedInstanceState) {
+        View v = inflater.inflate(R.layout.fragment_view_email, container, false);
+        TextView subject = (TextView) v.findViewById(R.id.email_subject);
+
+        try {
+            Email e = BoteHelper.getEmail(mFolderName, mMessageId);
+            if (e != null) {
+                subject.setText(e.getSubject());
+            } else {
+                subject.setText("Email not found");
+            }
+        } catch (PasswordException e) {
+            // TODO: Handle
+            e.printStackTrace();
+        } catch (MessagingException e) {
+            // TODO Handle
+            e.printStackTrace();
+        }
+
+        return v;
+    }
+
+    public String getMessageId() {
+        return mMessageId;
+    }
+}