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package com.vaadin.tests.components.combobox;
import java.util.ArrayList;
import java.util.Date;
import java.util.LinkedHashMap;
import java.util.List;
import com.vaadin.server.ThemeResource;
import com.vaadin.tests.components.ComponentTestCase;
import com.vaadin.ui.ComboBox;
import com.vaadin.ui.Component;
public class Comboboxes extends ComponentTestCase<ComboBox> {
private static class StringBean {
private String value;
public StringBean(String value) {
this.value = value;
}
public String getValue() {
return value;
}
}
@Override
protected Class<ComboBox> getTestClass() {
return ComboBox.class;
}
@Override
protected void initializeComponents() {
ComboBox<String> s1 = createSelect(null);
s1.setWidth(null);
addTestComponent(s1);
ComboBox<String> s2 = createSelect("Undefined wide, empty select");
s2.setWidth(null);
addTestComponent(s2);
ComboBox<String> s3 = createSelect(
"Undefined wide select with 5 items");
s3.setWidth(null);
s3.setItems("The first item", "The second item", "The third item",
"The fourth item", "The fifth item");
addTestComponent(s3);
ComboBox<StringBean> s4 = new ComboBox<>(
"Undefined wide select with 50 items");
s4.setWidth(null);
populate(s4, 50);
s4.setItemCaptionGenerator(StringBean::getValue);
s4.setScrollToSelectedItem(true);
addTestComponent(s4);
ComboBox<String> s5 = createSelect(null);
s5.setWidth("100px");
addTestComponent(s5);
ComboBox<String> s6 = createSelect("100px wide, empty select");
s6.setWidth("100px");
addTestComponent(s6);
ComboBox<String> s7 = createSelect("150px wide select with 5 items");
s7.setWidth("150px");
s7.setItems("The first item", "The second item", "The third item",
"The fourth item", "The fifth item");
addTestComponent(s7);
ComboBox<StringBean> s8 = new ComboBox<>(
"200px wide select with 50 items");
s8.setWidth("200px");
populate(s8, 50);
s8.setItemCaptionGenerator(StringBean::getValue);
addTestComponent(s8);
ComboBox<StringBean> s9 = new PageLength0ComboBox();
s9.setCaption("Pagelength 0");
populate(s9, 15);
s9.setItemCaptionGenerator(StringBean::getValue);
addTestComponent(s9);
}
public class PageLength0ComboBox extends ComboBox<StringBean> {
public PageLength0ComboBox() {
super();
setPageLength(0);
}
}
private void populate(ComboBox<StringBean> s, int nr) {
List<StringBean> beans = new ArrayList<>();
String text = " an item ";
String caption = "";
for (int i = 0; i < nr; i++) {
if (i % 2 == 0) {
caption += text;
} else {
caption += i;
}
beans.add(new StringBean(caption));
}
s.setItems(beans);
}
private ComboBox<String> createSelect(String caption) {
return new ComboBox<>(caption);
}
@Override
protected String getTestDescription() {
return "A generic test for ComboBoxes in different configurations";
}
@Override
protected void createCustomActions(List<Component> actions) {
actions.add(createIconSelect());
}
@SuppressWarnings("rawtypes")
private Component createIconSelect() {
LinkedHashMap<String, String> options = new LinkedHashMap<>();
options.put("<None>", null);
options.put("16x16", "../runo/icons/16/user.png");
options.put("32x32", "../runo/icons/32/attention.png");
options.put("64x64", "../runo/icons/64/email-reply.png");
return createSelectAction("Icon", options, "<None>",
new Command<ComboBox, String>() {
@SuppressWarnings("unchecked")
@Override
public void execute(ComboBox c, String value, Object data) {
if (value == null) {
c.setItemIconGenerator(item -> null);
} else {
c.setItemIconGenerator(item -> new ThemeResource(
value + "?" + new Date().getTime()));
}
}
});
}
}
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