cheogram/src/de/gultsch/chat/ui/ConversationActivity.java

package de.gultsch.chat.ui;

import java.util.HashMap;

import de.gultsch.chat.Contact;
import de.gultsch.chat.Conversation;
import de.gultsch.chat.ConversationCursor;
import de.gultsch.chat.ConversationList;
import de.gultsch.chat.R;
import de.gultsch.chat.R.id;
import android.os.Bundle;
import android.app.Activity;
import android.app.FragmentTransaction;
import android.content.Context;
import android.content.Intent;
import android.support.v4.widget.SlidingPaneLayout;
import android.support.v4.widget.SlidingPaneLayout.PanelSlideListener;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;

public class ConversationActivity extends Activity {
	
	public static final String START_CONVERSATION = "startconversation";
	public static final String CONVERSATION_CONTACT = "conversationcontact";

	protected SlidingPaneLayout spl;
	
	protected HashMap<Conversation, ConversationFragment> conversationFragments = new HashMap<Conversation, ConversationFragment>();
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_conversations);
		
		final ConversationList conversationList = new ConversationList();
		
		if (getIntent().getAction().equals(Intent.ACTION_VIEW)) {
			if (getIntent().getType().equals(ConversationActivity.START_CONVERSATION)) {
				Contact contact = (Contact) getIntent().getExtras().get(ConversationActivity.CONVERSATION_CONTACT);
				Log.d("gultsch","start conversation with "+contact.getDisplayName());
				conversationList.add(new Conversation(contact.getDisplayName()));
			}
		}
		String[] fromColumns = {ConversationCursor.NAME,
                ConversationCursor.LAST_MSG};
		int[] toViews = {R.id.conversation_name, R.id.conversation_lastmsg};
		
		final SimpleCursorAdapter adapter = new SimpleCursorAdapter(this,R.layout.conversation_list_row, conversationList.getCursor(), fromColumns, toViews,0);
		final ListView listView = (ListView) findViewById(R.id.list);
		listView.setAdapter(adapter);
		
		listView.setOnItemClickListener(new OnItemClickListener() {

			@Override
			public void onItemClick(AdapterView<?> arg0, View clickedView, int position,
					long arg3) {
				conversationList.setSelectedConversationPosition(position);
				swapConversationFragment(conversationList);
				getActionBar().setTitle(conversationList.getSelectedConversation().getName());
				spl.closePane();
			}
		});
		spl = (SlidingPaneLayout) findViewById(id.slidingpanelayout);
		spl.setParallaxDistance(150);
		spl.openPane();
		spl.setShadowResource(R.drawable.es_slidingpane_shadow);
		spl.setSliderFadeColor(0);
		spl.setPanelSlideListener(new PanelSlideListener() {
			@Override
			public void onPanelOpened(View arg0) {
				getActionBar().setDisplayHomeAsUpEnabled(false);
				getActionBar().setTitle(R.string.app_name);
				invalidateOptionsMenu();
				
				InputMethodManager inputManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); 
				
				inputManager.hideSoftInputFromWindow(
				        getCurrentFocus().getWindowToken(),
				        InputMethodManager.HIDE_NOT_ALWAYS);
				listView.requestFocus();
			}
			
			@Override
			public void onPanelClosed(View arg0) {
				getActionBar().setDisplayHomeAsUpEnabled(true);
				getActionBar().setTitle(conversationList.getSelectedConversation().getName());
				invalidateOptionsMenu();
				
			}

			@Override
			public void onPanelSlide(View arg0, float arg1) {
				// TODO Auto-generated method stub
				
			}
		});
		if (conversationList.size() >= 1) {
			conversationList.setSelectedConversationPosition(0);
			swapConversationFragment(conversationList);
		} else {
			//start new conversation activity
		}
	}
	
	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.conversations, menu);
		
		if (spl.isOpen()) {
			((MenuItem) menu.findItem(R.id.action_archive)).setVisible(false);
			((MenuItem) menu.findItem(R.id.action_details)).setVisible(false);
			((MenuItem) menu.findItem(R.id.action_security)).setVisible(false);
		} else {
			((MenuItem) menu.findItem(R.id.action_add)).setVisible(false);
		}
		return true;
	}
	
	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		switch(item.getItemId()) {
		case android.R.id.home:
			spl.openPane();
			break;
		case R.id.action_settings:
			startActivity(new Intent(this, SettingsActivity.class));
			break;
		case R.id.action_accounts:
			startActivity(new Intent(this, ManageAccountActivity.class));
			break;
		case R.id.action_add:
			startActivity(new Intent(this, NewConversationActivity.class));
		default:
			break;
		}
	    return super.onOptionsItemSelected(item);
	}

	protected void swapConversationFragment(
			final ConversationList conversationList) {
		ConversationFragment selectedFragment;
		if (conversationFragments.containsKey(conversationList.getSelectedConversation())) {
			selectedFragment = conversationFragments.get(conversationList.getSelectedConversation());
		} else {
			selectedFragment = new ConversationFragment();
			conversationFragments.put(conversationList.getSelectedConversation(), selectedFragment);
		}
		FragmentTransaction transaction = getFragmentManager().beginTransaction();
		transaction.replace(R.id.selected_conversation, selectedFragment);
		transaction.commit();
	}

}