Example usage for com.google.gwt.gen2.commonevent.shared BeforeOpenEvent isFirstTime

Introduction

In this page you can find the example usage for com.google.gwt.gen2.commonevent.shared BeforeOpenEvent isFirstTime.

Prototype

boolean isFirstTime

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Document

Flag to keep track of the first time @FastTreeItem has been opened.

Usage

From source file:com.google.gwt.gen2.demo.fasttree.client.FastTreeDemo.java

License:Apache License

/**
 * Creates a lazy tree.//from  w ww  . j a v  a 2 s  . c o m
 */
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));
                }
            }
        }
    });
    return t;
}

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From source file:org.pentaho.pat.client.ui.widgets.DimensionTreeWidget.java

License:Open Source License

protected Widget onInitialize() {

    dimensionTree = new FastTree();
    lazyCreateChild(dimensionTree.getTreeRoot(), 0, 50);

    dimensionTree.addBeforeOpenHandler(new BeforeOpenHandler<FastTreeItem>() {

        public void onBeforeOpen(BeforeOpenEvent<FastTreeItem> event) {
            parentItem = (FastTreeItem) event.getTarget();
            if (event.isFirstTime()) {
                lazyCreateChilds();//w ww .j a  va  2 s.  c  o  m
            }
        }
    });

    final ScrollPanel panel = new ScrollPanel();
    panel.add(dimensionTree);

    return panel;
}

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