TreeHtmlContentAllowed.java example

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/*
 * Copyright 2000-2016 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.components.tree;

import com.vaadin.server.VaadinRequest;
import com.vaadin.tests.components.AbstractReindeerTestUI;
import com.vaadin.ui.CheckBox;
import com.vaadin.v7.ui.Tree;

public class TreeHtmlContentAllowed extends AbstractReindeerTestUI {

    @Override
    protected void setup(VaadinRequest request) {
        String textParent = "Just text";
        String htmlParent = "Some <b>html</b>";
        String textChild = "Child text";
        String htmlChild = "Child <i>html</i>";
        String htmlElementChild = "Child <span id='my-html-element'>element html</span>";

        final Tree tree = new Tree("A tree");
        tree.addItem(textParent);
        tree.addItem(htmlParent);
        tree.addItem(textChild);
        tree.addItem(htmlChild);
        tree.addItem(htmlElementChild);
        tree.setParent(textChild, textParent);
        tree.setParent(htmlChild, htmlParent);

        tree.setChildrenAllowed(textChild, false);
        tree.setChildrenAllowed(htmlChild, false);
        tree.setChildrenAllowed(htmlElementChild, false);

        final CheckBox toggle = new CheckBox("HTML content allowed",
                tree.isHtmlContentAllowed());
        toggle.addValueChangeListener(event -> tree
                .setHtmlContentAllowed(toggle.getValue().booleanValue()));

        addComponents(tree, toggle);
    }

}