vaadin-framework/uitest/src/main/java/com/vaadin/tests/components/grid/GridClickableRenderers.java

package com.vaadin.tests.components.grid;

import com.vaadin.server.ExternalResource;
import com.vaadin.server.VaadinRequest;
import com.vaadin.tests.components.AbstractReindeerTestUI;
import com.vaadin.ui.Grid;
import com.vaadin.ui.Label;
import com.vaadin.ui.renderers.ButtonRenderer;
import com.vaadin.ui.renderers.ImageRenderer;

public class GridClickableRenderers extends AbstractReindeerTestUI {

    private static class TestPOJO {
        String testText;
        String imageUrl;
        String buttonText;
        String buttonHtml;
        boolean truthValue;

        TestPOJO(String intValue, String imageUrl, String buttonText,
                String buttonHtml, boolean truthValue) {
            testText = intValue;
            this.imageUrl = imageUrl;
            this.buttonText = buttonText;
            this.buttonHtml = buttonHtml;
            this.truthValue = truthValue;
        }
    }

    @Override
    protected void setup(VaadinRequest request) {
        Label valueDisplayLabel = new Label("button click label");
        Label checkBoxValueLabel = new Label("checkbox click label");
        Grid<TestPOJO> grid = new Grid<>();

        grid.addColumn(pojo -> new ExternalResource(pojo.imageUrl),
                new ImageRenderer<>()).setId("images").setCaption("Images");
        grid.addColumn(pojo -> pojo.buttonText,
                new ButtonRenderer<>(event -> valueDisplayLabel
                        .setValue(event.getItem().testText + " clicked")))
                .setId("buttons").setCaption("Buttons");
        ButtonRenderer<TestPOJO> htmlButtonRenderer = new ButtonRenderer<>();
        htmlButtonRenderer.setHtmlContentAllowed(true);
        htmlButtonRenderer.addClickListener(event -> valueDisplayLabel
                .setValue(event.getItem().buttonHtml + " clicked"));
        grid.addColumn(pojo -> pojo.buttonHtml, htmlButtonRenderer)
                .setId("buttonsHtml").setCaption("Buttons HTML");

        ButtonRenderer<TestPOJO> yesNoRenderer = new ButtonRenderer<>();
        yesNoRenderer.addClickListener(event -> {
            TestPOJO item = event.getItem();
            item.truthValue = !item.truthValue;
            checkBoxValueLabel.setValue(item.testText + " " + item.truthValue);
            grid.getDataProvider().refreshAll();
        });
        grid.addColumn(pojo -> pojo.truthValue ? "Yes" : "No", yesNoRenderer)
                .setCaption("Truth").setId("truth");

        grid.setItems(
                new TestPOJO("first row", "", "button 1 text",
                        "button 1 <b style='color: red'>html</b>", true),
                new TestPOJO("second row", "", "button 2 text",
                        "button 2 <b style='color: red'>html</b>", false));
        addComponents(valueDisplayLabel, checkBoxValueLabel, grid);
    }
}