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package org.litesoft.GWT.client.widgets.nonpublic;
import org.litesoft.GWT.client.*;
import com.google.gwt.dom.client.*;
import com.google.gwt.event.dom.client.*;
import com.google.gwt.user.client.*;
import com.google.gwt.user.client.ui.*;
public class TextBoxBaseChangeListenableHelper implements FocusHandler,
BlurHandler
{
private Timer mTimer = null;
private String mText = "";
private TextBoxBase mTextBoxBase;
public TextBoxBaseChangeListenableHelper( TextBoxBase pTextBoxBase )
{
mTextBoxBase = pTextBoxBase;
pTextBoxBase.addFocusHandler( this );
pTextBoxBase.addBlurHandler( this );
}
public void setText( String pText )
{
mText = UtilsGwt.deNull( pText );
}
private void captureFieldValue()
{
mText = getCurrentText();
}
private boolean textBoxBaseTextChanged()
{
String value = getCurrentText();
if ( !mText.equals( value ) )
{
mText = value;
return true;
}
return false;
}
private String getCurrentText()
{
return UtilsGwt.deNull( mTextBoxBase.getText() );
}
private void checkForChange()
{
if ( textBoxBaseTextChanged() )
{
fireChangeListeners();
}
}
public void onBlur( BlurEvent event )
{
if ( mWidgetIsFocused )
{
mWidgetIsFocused = false;
checkForChange();
stopTimer();
}
}
private boolean mWidgetIsFocused = false;
public void onFocus( FocusEvent event )
{
mWidgetIsFocused = true;
captureFieldValue();
startTimer();
}
private void fireChangeListeners()
{
NativeEvent zEvent = Document.get().createChangeEvent();
mTextBoxBase.getElement().dispatchEvent( zEvent );
}
public void onDetach()
{
stopTimer();
}
private void startTimer()
{
stopTimer();
mTimer = new Timer()
{
public void run()
{
checkForChange();
}
};
mTimer.scheduleRepeating( 250 );
}
private void stopTimer()
{
if ( mTimer != null )
{
mTimer.cancel();
mTimer = null;
}
}
}
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Revision |
Author |
Commited |
Message |
2
|
GeorgeS
|
Sun 07 Feb, 2010 12:50:58 +0000 |
|