DateTimeSelector.java

package fr.lteconsulting.hexa.client.ui.widget;

import java.util.ArrayList;

import com.google.gwt.user.client.ui.Composite;
import fr.lteconsulting.hexa.client.common.HexaDate;
import fr.lteconsulting.hexa.client.common.HexaDateTime;
import fr.lteconsulting.hexa.client.common.HexaTime;
import fr.lteconsulting.hexa.client.interfaces.IValueChangeHandler;
import fr.lteconsulting.hexa.client.tools.HTMLStream;

public class DateTimeSelector extends Composite
{
	DateSelector date = new DateSelector();
	TimeSelector time = new TimeSelector();

	boolean fCallbackSet = false;

	ArrayList<IValueChangeHandler<HexaDateTime>> handlers = new ArrayList<IValueChangeHandler<HexaDateTime>>();

	public DateTimeSelector()
	{
		HTMLStream stream = new HTMLStream();
		stream.addInline( date ).text( " at " ).addInline( time );

		initWidget( stream );
	}

	public void clear()
	{
		date.clear();
		time.clear();
	}

	public HexaDateTime getDateTime()
	{
		return new HexaDateTime( date.getDate(), time.getTime() );
	}

	public void setDateTime( HexaDateTime hexaDateTime )
	{
		if( hexaDateTime == null )
		{
			clear();
			return;
		}

		date.setDate( hexaDateTime.getHexaDate() );
		time.setTime( hexaDateTime.getHexaTime() );
	}

	public void setDateTime( HexaDateTime dateTime, boolean fFireEvent )
	{
		setDateTime( dateTime );

		if( fFireEvent )
			fire( dateTime );
	}

	public void addValueChangeHandler( IValueChangeHandler<HexaDateTime> handler )
	{
		if( !fCallbackSet )
		{
			date.addValueChangeHandler( new IValueChangeHandler<HexaDate>()
			{
				@Override
				public void onValueChange( HexaDate value )
				{
					changed();
				}
			} );
			time.addValueChangeHandler( new IValueChangeHandler<HexaTime>()
			{
				@Override
				public void onValueChange( HexaTime value )
				{
					changed();
				}
			} );
			fCallbackSet = true;
		}

		handlers.add( handler );
	}

	private void fire( HexaDateTime dateTime )
	{
		for( IValueChangeHandler<HexaDateTime> handler : handlers )
			handler.onValueChange( dateTime );
	}

	void changed()
	{
		HexaDateTime time = getDateTime();

		fire( time );
	}

	public void setEnabled( boolean enabled )
	{
		date.setEnabled( enabled );
		time.setEnabled( enabled );
	}
}