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/**
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/**
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 * A tree displaying a set of catalog folders.
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 * A tree displaying a set of catalog folders.
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 */
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 */
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public class CatalogTree extends Composite {
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public class CatalogTree extends Composite {
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  private Tree tree;
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    private Tree tree;
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    interface TreeListener {
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        void onTreeItemClicked();
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    }
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    TreeListener treeListener;
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  public CatalogTree() {
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    public CatalogTree() {
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    tree = new Tree();
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        tree = new Tree();
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    TreeItem root = new TreeItem("Catalog");
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        TreeItem root = new TreeItem("Catalog");
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    tree.addItem(root);
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        tree.addItem(root);
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    addItem(root, "All Items");
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        addItem(root, "All Items");
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    addItem(root, "Best Deals");
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        addItem(root, "Best Deals");
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    addItem(root, "Best Sellers");
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        addItem(root, "Best Sellers");
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    addItem(root, "Latest Arrivals");
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        addItem(root, "Latest Arrivals");
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    root.setState(true);
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        root.setState(true);
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    initWidget(tree);
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        initWidget(tree);
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  }
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    }
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  /**
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   *
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   * @param root the tree item to which the new item will be added.
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   * @param title the text associated with this item.
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   */
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  private void addItem(TreeItem root, String title) {
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    private void addItem(TreeItem root, String title) {
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    Anchor item = new Anchor(title);
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        Anchor item = new Anchor(title);
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    //TreeItem item = new TreeItem(title);
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    root.addItem(item);
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        root.addItem(item);
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    item.addClickHandler(new ClickHandler() {
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        item.addClickHandler(new ClickHandler() {
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        @Override
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            @Override
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        public void onClick(ClickEvent event) {
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            public void onClick(ClickEvent event) {
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            // TODO Auto-generated method stub
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                treeListener.onTreeItemClicked();
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            }
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        }
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        });
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    });
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    }
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    public void setTreeListener(TreeListener treeListener) {
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        this.treeListener = treeListener;
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  }
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    }
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}
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}