Examples of addBeforeOpenHandler()

Examples of com.google.gwt.gen2.complexpanel.client.FastTree.addBeforeOpenHandler()

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   * Creates a lazy tree.
   */
  protected Widget lazyTree() {
    final FastTree t = new FastTree();
    lazyCreateChild(t, 0, 50);
    t.addBeforeOpenHandler(new BeforeOpenHandler<FastTreeItem>() {
      public void onBeforeOpen(BeforeOpenEvent<FastTreeItem> event) {
        if (event.isFirstTime()) {
          for (int i = 0; i < 50; i++) {
            lazyCreateChild(event.getTarget(), i, 50 + (i * 10));
          }
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Examples of com.google.gwt.gen2.complexpanel.client.FastTree.addBeforeOpenHandler()

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      public void onSelection(SelectionEvent<FastTreeItem> event) {
        Window.alert("You selected " + event.getSelectedItem().getHTML());
      }
    });
    tree.addBeforeOpenHandler(new BeforeOpenHandler<FastTreeItem>() {

      public void onBeforeOpen(BeforeOpenEvent<FastTreeItem> event) {
        if (Window.confirm("Would you like to change the name of the item before opening it?")) {
          event.getTarget().setHTML("Name changed before open.");
        }
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