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/*
@ITMillApache2LicenseForJavaFiles@
*/
package com.vaadin.tests;
import com.vaadin.event.Action;
import com.vaadin.event.Action.Handler;
import com.vaadin.ui.Button;
import com.vaadin.ui.Component;
import com.vaadin.ui.CustomComponent;
import com.vaadin.ui.Label;
import com.vaadin.ui.OrderedLayout;
import com.vaadin.ui.Panel;
import com.vaadin.ui.Tree;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Button.ClickListener;
/**
* Some test cases for trees. Events panel logs events that happen server side.
*
* @author IT Mill Ltd.
*/
public class TestForTrees extends CustomComponent implements Handler {
private static final String[] firstnames = new String[] { "John", "Mary",
"Joe", "Sarah", "Jeff", "Jane", "Peter", "Marc", "Josie", "Linus" };
private static final String[] lastnames = new String[] { "Torvalds",
"Smith", "Jones", "Beck", "Sheridan", "Picard", "Hill", "Fielding",
"Einstein" };
private final OrderedLayout main = new OrderedLayout();
private final Action[] actions = new Action[] { new Action("edit"),
new Action("delete") };
private Panel al;
private Tree contextTree;
public TestForTrees() {
setCompositionRoot(main);
createNewView();
}
public void createNewView() {
main.removeAllComponents();
main
.addComponent(new Label(
"Some test cases for trees. Events panel logs events that happen server side."));
main.addComponent(new Button("commit"));
Tree t;
t = createTestTree();
t.setCaption("Default settings");
main.addComponent(createTestBench(t));
t = createTestTree();
t.setCaption("Multiselect settings");
t.setMultiSelect(true);
main.addComponent(createTestBench(t));
t = createTestTree();
t.setCaption("Multiselect and immediate");
t.setImmediate(true);
t.setMultiSelect(true);
main.addComponent(createTestBench(t));
t = createTestTree();
t.setCaption("immediate");
t.setImmediate(true);
main.addComponent(createTestBench(t));
t = createTestTree();
t.setCaption("with actions");
t.setImmediate(true);
t.addActionHandler(this);
final OrderedLayout ol = (OrderedLayout) createTestBench(t);
al = new Panel("action log");
ol.addComponent(al);
main.addComponent(ol);
contextTree = t;
final Button b = new Button("refresh view", this, "createNewView");
main.addComponent(b);
}
public Tree createTestTree() {
Tree t = new Tree("Tree");
final String[] names = new String[100];
for (int i = 0; i < names.length; i++) {
names[i] = firstnames[(int) (Math.random() * (firstnames.length - 1))]
+ " "
+ lastnames[(int) (Math.random() * (lastnames.length - 1))];
}
// Create tree
t = new Tree("Organization Structure");
for (int i = 0; i < 100; i++) {
t.addItem(names[i]);
final String parent = names[(int) (Math.random() * (names.length - 1))];
if (t.containsId(parent)) {
t.setParent(names[i], parent);
}
}
// Forbid childless people to have children (makes them leaves)
for (int i = 0; i < 100; i++) {
if (!t.hasChildren(names[i])) {
t.setChildrenAllowed(names[i], false);
}
}
return t;
}
public Component createTestBench(Tree t) {
final OrderedLayout ol = new OrderedLayout(
OrderedLayout.ORIENTATION_HORIZONTAL);
ol.addComponent(t);
final Panel status = new Panel("Events");
final Button clear = new Button("c");
clear.addListener(new ClickListener() {
public void buttonClick(ClickEvent event) {
status.removeAllComponents();
status.addComponent(clear);
}
});
status.addComponent(clear);
status.setHeight("300px");
status.setWidth("400px");
ol.addComponent(status);
t.addListener(new Listener() {
public void componentEvent(Event event) {
status.addComponent(new Label(event.getClass().getName()));
status.addComponent(new Label("selected: "
+ event.getSource().toString()));
}
});
return ol;
}
public Action[] getActions(Object target, Object sender) {
return actions;
}
public void handleAction(Action action, Object sender, Object target) {
if (action == actions[1]) {
al.addComponent(new Label("Delete selected on " + target));
contextTree.removeItem(target);
} else {
al.addComponent(new Label("Edit selected on " + target));
}
}
}
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