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package de.bjusystems.vdrmanager.gui;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.net.ConnectivityManager;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ListView;
import android.widget.Toast;
import android.widget.ViewFlipper;
import de.bjusystems.vdrmanager.R;
import de.bjusystems.vdrmanager.app.VdrManagerApp;
import de.bjusystems.vdrmanager.data.Channel;
import de.bjusystems.vdrmanager.utils.svdrp.SvdrpAsyncListener;
import de.bjusystems.vdrmanager.utils.svdrp.SvdrpEvent;
import de.bjusystems.vdrmanager.utils.svdrp.SvdrpException;
public abstract class BaseActivity<Result, T extends ListView> extends Activity
implements OnClickListener, SvdrpAsyncListener<Result> {
public static final String TAG = BaseActivity.class.getName();
public static final int MENU_GROUP_REFRESH = 99;
public static final int MENU_REFRESH = 99;
protected T listView;
protected ViewFlipper flipper;
private Button retry;
protected SvdrpProgressDialog progress;
abstract protected int getWindowTitle();
abstract protected int getMainLayout();
protected void switchNothinFound() {
if (flipper == null) {
return;
}
//say("can not connect...");
//flipper.setDisplayedChild(1);
}
protected void switchNoConnection() {
if (flipper == null) {
return;
}
//say("can not connect...");
//flipper.setDisplayedChild(1);
}
protected void initFlipper() {
this.flipper = (ViewFlipper) findViewById(R.id.flipper);
retry = (Button) findViewById(R.id.retry_button);
retry.setOnClickListener(this);
}
public void onClick(View v) {
if (v.getId() == R.id.retry_button) {
retry();
}
}
protected void updateWindowTitle(int topic, int subtopic) {
String title;
title = getString(topic);
if (subtopic != -1) {
title += " > " + getString(subtopic);
}
setTitle(title);
}
protected void updateWindowTitle(String topic, String subtopic) {
String title = topic;
if (subtopic != null) {
title += " > " + subtopic;
}
setTitle(title);
}
@Override
public boolean onCreateOptionsMenu(final Menu menu) {
MenuItem item;
item = menu.add(MENU_GROUP_REFRESH, MENU_REFRESH, 0, R.string.refresh);
item.setIcon(R.drawable.ic_menu_refresh);
item.setAlphabeticShortcut('r');
return true;
}
abstract protected void refresh();
abstract protected void retry();
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case MENU_REFRESH:
backupViewSelection();
refresh();
return true;
default:
return false;
}
}
protected void setCurrent(Channel channel) {
getApp().setCurrentChannel(channel);
}
protected VdrManagerApp getApp() {
final VdrManagerApp app = (VdrManagerApp) getApplication();
return app;
}
// protected Channel getCurrentChannel(){
// final Channel channel = ((VdrManagerApp) getApplication())
// .getCurrentChannel();
// return channel;
// }
protected void say(int res) {
Toast.makeText(this, res, Toast.LENGTH_SHORT).show();
}
protected void say(String msg) {
Toast.makeText(this, msg, Toast.LENGTH_SHORT).show();
}
protected boolean noConnection(SvdrpEvent event) {
switch (event) {
case CONNECT_ERROR:
say(R.string.progress_connect_error);
switchNoConnection();
break;
case FINISHED_ABNORMALY:
alert(R.string.progress_connect_finished_abnormal);
switchNoConnection();
break;
case LOGIN_ERROR:
say(R.string.progress_login_error);
switchNoConnection();
break;
default:
return false;
}
return true;
}
protected void alert(String msg) {
new AlertDialog.Builder(this)//
.setMessage(msg)//
.setPositiveButton(android.R.string.ok, null)//
.create()//
.show();//
}
protected void alert(int resId) {
alert(getString(resId));
}
protected void restoreViewSelection() {
listView.setSelectionFromTop(index, top);
}
protected void backupViewSelection() {
index = listView.getFirstVisiblePosition();
View v = listView.getChildAt(0);
top = (v == null) ? 0 : v.getTop();
}
int index;
int top;
protected boolean checkInternetConnection() {
ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
// test for connection
if (cm.getActiveNetworkInfo() != null
&& cm.getActiveNetworkInfo().isAvailable()
&& cm.getActiveNetworkInfo().isConnected()) {
return true;
}
return false;
}
public void svdrpEvent(final SvdrpEvent event, final Result result) {
switch (event) {
case ABORTED:
alert(R.string.aborted);
break;
case ERROR:
alert(R.string.epg_client_errors);
// say(R.string.epg_client_errors);
// dismiss(progress);
break;
case CONNECTING:
break;
case CONNECTED:
connected();
break;
case CONNECT_ERROR:
case FINISHED_ABNORMALY:
case LOGIN_ERROR:
noConnection(event);
break;
case CACHE_HIT:
cacheHit();
return;
case FINISHED_SUCCESS:
if (finishedSuccess() == false) {
say(R.string.epg_no_items);
} else {
restoreViewSelection();
}
break;
case RESULT_RECEIVED:
resultReceived(result);
break;
}
}
protected void cacheHit() {
}
/**
* @return false, if no results found
*/
protected abstract boolean finishedSuccess();
/**
* @param result
*/
protected abstract void resultReceived(Result result);
protected void connected() {
}
public void svdrpException(final SvdrpException exception) {
progress.svdrpException(exception);
// Log.w(TAG, exception);
alert(getString(R.string.vdr_error_text, exception.getMessage()));
}
}
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