Package com.vaadin.ui

Examples of com.vaadin.ui.Tree.addListener()

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        t.addItem("Foo");
        t.addItem("Bar");

        final VerticalLayout events = new VerticalLayout();

        t.addListener(new ItemClickEvent.ItemClickListener() {
            @Override
            public void itemClick(ItemClickEvent event) {
                events.addComponent(new Label(new Label("Click:"
                        + (event.isDoubleClick() ? "double" : "single")
                        + " button:" + event.getButtonName() + " propertyId:"
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        expandCalled = 0;
    }

    public void testExpandListener() {
        Tree tree = createTree(10, 20, false);
        tree.addListener((ExpandListener) this);
        List<Object> rootIds = new ArrayList<Object>(tree.rootItemIds());

        assertEquals(10, rootIds.size());
        assertEquals(10 + 10 * 20 + 10, tree.size());

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        return tree;
    }

    public void testCollapseListener() {
        Tree tree = createTree(7, 15, true);
        tree.addListener((CollapseListener) this);

        List<Object> rootIds = new ArrayList<Object>(tree.rootItemIds());

        assertEquals(7, rootIds.size());
        assertEquals(7 + 7 * 15 + 7, tree.size());
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        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;

            @Override
            public void itemClick(ItemClickEvent event) {
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            tree.setChildrenAllowed(item, false);
        }
        tree.setItemCaptionMode(Tree.ITEM_CAPTION_MODE_PROPERTY);
        tree.setItemCaptionPropertyId("caption");

        tree.addListener(new ItemClickEvent.ItemClickListener() {
            @Override
            public void itemClick(ItemClickEvent event) {
                clickCounter++;
                switch (event.getButton()) {
                case LEFT:
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        });

        Tree tree = new Tree("Simple selectable tree (immediate)");
        tree.addItem("Item1");
        addComponent(tree);
        tree.addListener(new Property.ValueChangeListener() {

            @Override
            public void valueChange(ValueChangeEvent event) {
                log.log("Tree value now:" + event.getProperty().getValue());
            }
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        });
        tree.setImmediate(true);

        tree = new Tree("Simple tree with itemm click listener");
        tree.addItem("Item1");
        tree.addListener(new ItemClickEvent.ItemClickListener() {
            @Override
            public void itemClick(ItemClickEvent event) {
                log.log("Item click event");
            }
        });
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    }

    /** Create new Tree with given caption and listener. */
    public Tree tree(String caption, Property.ValueChangeListener changeListener) {
        Tree c = tree(caption);
        c.addListener(changeListener);
        return c;
    }

    /** Create new Form and add it to current component container. */
    public Form form() {
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        for (Object id : tree.rootItemIds()) {
            tree.expandItemsRecursively(id);
        }

        tree.addListener(new Tree.ValueChangeListener() {

            @Override
            public void valueChange(ValueChangeEvent event) {
                try {
                    Object selectedId = event.getProperty().getValue();
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