/*
* Copyright 2000-2014 Vaadin Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.vaadin.tests;
import java.util.ArrayList;
import java.util.Iterator;
import com.vaadin.server.ExternalResource;
import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Component;
import com.vaadin.ui.CustomComponent;
import com.vaadin.ui.Label;
import com.vaadin.ui.Link;
import com.vaadin.ui.Select;
import com.vaadin.ui.VerticalLayout;
/**
*
* This Component contains some simple test to see that component updates its
* contents propertly.
*
* @author Vaadin Ltd.
*/
public class TestForChildComponentRendering extends CustomComponent {
private final VerticalLayout main;
public TestForChildComponentRendering() {
main = new VerticalLayout();
setCompositionRoot(main);
createNewView();
}
public void createNewView() {
main.removeAllComponents();
main.addComponent(new Label("SDFGFHFHGJGFDSDSSSGFDD"));
final Link l = new Link();
l.setCaption("Siirry Vaadiniin");
l.setResource(new ExternalResource("http://www.vaadin.com/"));
l.setTargetHeight(200);
l.setTargetWidth(500);
l.setTargetBorder(Link.TARGET_BORDER_MINIMAL);
main.addComponent(l);
final Select se = new Select();
se.setCaption("VALITSET TÄSTÄ");
se.addItem("valinta1");
se.addItem("Valinta 2");
Button b = new Button("refresh view", new Button.ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
createNewView();
}
});
main.addComponent(b);
b = new Button("reorder view", new Button.ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
randomReorder();
}
});
main.addComponent(b);
b = new Button("remove randomly one component",
new Button.ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
removeRandomComponent();
}
});
main.addComponent(b);
}
public void randomReorder() {
final Iterator<Component> it = main.getComponentIterator();
final ArrayList<Component> components = new ArrayList<Component>();
while (it.hasNext()) {
components.add(it.next());
}
final VerticalLayout v = main;
v.removeAllComponents();
for (int i = components.size(); i > 0; i--) {
final int index = (int) (Math.random() * i);
v.addComponent(components.get(index));
components.remove(index);
}
}
public void removeRandomComponent() {
final Iterator<Component> it = main.getComponentIterator();
final ArrayList<Component> components = new ArrayList<Component>();
while (it.hasNext()) {
components.add(it.next());
}
final int size = components.size();
final int index = (int) (Math.random() * size);
main.removeComponent(components.get(index));
}
}