YesNoEditorWidget.java

package ilarkesto.gwt.client.editor;

import ilarkesto.gwt.client.AViewEditWidget;

import com.google.gwt.event.dom.client.ChangeEvent;
import com.google.gwt.event.dom.client.ChangeHandler;
import com.google.gwt.user.client.ui.FocusListener;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.ListBox;
import com.google.gwt.user.client.ui.Widget;

public class YesNoEditorWidget extends AViewEditWidget {

	private ABooleanEditorModel model;
	private Label viewer;
	private ListBox editor;

	public YesNoEditorWidget(ABooleanEditorModel model) {
		super();
		this.model = model;
	}

	@Override
	protected void onViewerUpdate() {
		viewer.setText(model.isTrue() ? "yes" : "no");
	}

	@Override
	protected void onEditorUpdate() {
		editor.setSelectedIndex(model.isTrue() ? 0 : 1);
	}

	@Override
	protected void onEditorSubmit() {
		model.setValue(editor.getSelectedIndex() == 0 ? true : false);
	}

	@Override
	protected final Widget onViewerInitialization() {
		viewer = new Label();
		return viewer;
	}

	@Override
	protected final Widget onEditorInitialization() {
		editor = new ListBox();
		editor.addChangeHandler(new EditorChangeListener());
		editor.addFocusListener(new EditorFocusListener());
		editor.setVisibleItemCount(2);
		editor.addItem("yes", "true");
		editor.addItem("no", "false");
		return editor;
	}

	@Override
	public boolean isEditable() {
		return model.isEditable();
	}

	@Override
	public String getTooltip() {
		return model.getTooltip();
	}

	@Override
	public String getId() {
		return model.getId();
	}

	private class EditorChangeListener implements ChangeHandler {

		@Override
		public void onChange(ChangeEvent event) {
			submitEditor();
		}

	}

	private class EditorFocusListener implements FocusListener {

		public void onFocus(Widget sender) {}

		public void onLostFocus(Widget sender) {
			submitEditor();
		}

	}
}