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- package com.vaadin.tests.components.tree;
-
- import com.vaadin.data.util.HierarchicalContainer;
- import com.vaadin.event.ItemClickEvent;
- import com.vaadin.event.ItemClickEvent.ItemClickListener;
- import com.vaadin.tests.components.TestBase;
- import com.vaadin.ui.Label;
- import com.vaadin.ui.Panel;
- import com.vaadin.ui.Tree;
-
- public class TreeScrollingOnSelection extends TestBase {
- private static final long serialVersionUID = 4082075610259697145L;
-
- private static final String GREEK_ALPHABET = "greek alphabet";
-
- private static final String[] ALPHABET = { "Alpha", "Beta", "Gamma",
- "Delta", "Epsilon", "Zeta", "Eta", "Theta", "Iota", "Kappa",
- "Lambda", "My", "Ny", "Xi", "Omikron", "Pi", "Rho", "Sigma", "Tau",
- "Ypsilon", "Phi", "Chi", "Psi", "Omega" };
-
- @Override
- public void setup() {
- final Label charLabel = new Label();
- charLabel.setWidth("200px");
-
- Tree tree = new Tree("alphabets", getContainer());
- tree.expandItem(GREEK_ALPHABET);
- tree.addListener(new ItemClickListener() {
-
- private static final long serialVersionUID = 5955518276555388126L;
-
- public void itemClick(ItemClickEvent event) {
- charLabel.setValue(event.getItemId().toString());
- }
- });
- tree.setImmediate(true);
-
- Panel panel = new Panel();
- panel.addComponent(tree);
- panel.setWidth("200px");
- panel.setHeight("300px");
-
- addComponent(panel);
-
- addComponent(charLabel);
- }
-
- private HierarchicalContainer getContainer() {
- HierarchicalContainer container = new HierarchicalContainer();
-
- container.addItem(GREEK_ALPHABET);
-
- for (String character : ALPHABET) {
- container.addItem(character);
- container.setChildrenAllowed(character, false);
- container.setParent(character, GREEK_ALPHABET);
- }
-
- return container;
- }
-
- @Override
- protected String getDescription() {
- return "Selecting an item in the tree inside the Panel should not cause the panel scroll position to change.";
- }
-
- @Override
- protected Integer getTicketNumber() {
- return 6731;
- }
- }
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