io.imunity.upman.front.views.members.GroupComboBox Maven / Gradle / Ivy
/*
* Copyright (c) 2018 Bixbit - Krzysztof Benedyczak. All rights reserved.
* See LICENCE.txt file for licensing information.
*/
package io.imunity.upman.front.views.members;
import com.vaadin.flow.component.AbstractField;
import com.vaadin.flow.component.Text;
import com.vaadin.flow.component.combobox.ComboBox;
import com.vaadin.flow.component.html.Div;
import com.vaadin.flow.data.renderer.ComponentRenderer;
import io.imunity.upman.front.model.GroupTreeNode;
import pl.edu.icm.unity.base.message.MessageSource;
class GroupComboBox extends ComboBox
{
GroupComboBox(MessageSource msg)
{
setRenderer(new ComponentRenderer<>(group -> renderGroupWithIndent(group, msg)));
addValueChangeListener(this::blockNullValue);
setItemLabelGenerator(groupTreeNode -> groupTreeNode.getDisplayedNameWithDescription(msg));
}
private void blockNullValue(AbstractField.ComponentValueChangeEvent, GroupTreeNode> event)
{
if(event.getValue() == null && event.isFromClient())
setValue(event.getOldValue());
}
private Div renderGroupWithIndent(GroupTreeNode group, MessageSource msg)
{
Div div = new Div(new Text(group.getDisplayedNameWithDescription(msg)));
div.getStyle().set("text-indent", group.getLevel() + "em");
return div;
}
}