Example usage for com.google.gwt.widgetideas.client ListeningFastTreeItem ListeningFastTreeItem

Introduction

In this page you can find the example usage for com.google.gwt.widgetideas.client ListeningFastTreeItem ListeningFastTreeItem.

Prototype

public ListeningFastTreeItem(Widget widget) 

Source Link

Document

Constructs a tree item with the given Widget.

Usage

From source file:com.google.gwt.demos.fasttree.client.FastTreeDemo.java

License:Apache License

private void verboseTreeItem(HasFastTreeItems parent, int children) {
    for (int i = 0; i < children; i++) {
        final int index = i;

        FastTreeItem item = new ListeningFastTreeItem("child " + i) {

            public void beforeClose() {
                Window.alert("Close item" + index);
            }/*  w  w  w  .  jav  a 2  s  .co  m*/

            public void beforeOpen() {
                Window.alert("Open item " + index);
            }

            protected boolean beforeSelectionLost() {
                return DOMHelper.confirm("Are you sure you want to leave me?");
            }

            protected void ensureChildren() {
                Window.alert("You are about to open my children for the first time");
            }

            protected void onSelected() {
                Window.alert("You selected item " + index);
            }
        };
        parent.addItem(item);
        verboseTreeItem(item, children - (i + 1));
    }
}

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