Example usage for com.google.gwt.user.client.ui TabBar addBeforeSelectionHandler

Introduction

In this page you can find the example usage for com.google.gwt.user.client.ui TabBar addBeforeSelectionHandler.

Prototype

public HandlerRegistration addBeforeSelectionHandler(BeforeSelectionHandler<Integer> handler) 

Source Link

Usage

From source file:com.google.gwt.examples.TabBarExample.java

License:Apache License

public void onModuleLoad() {
    // Create a tab bar with three items.
    TabBar bar = new TabBar();
    bar.addTab("foo");
    bar.addTab("bar");
    bar.addTab("baz");

    // Hook up a tab listener to do something when the user selects a tab.
    bar.addSelectionHandler(new SelectionHandler<Integer>() {
        public void onSelection(SelectionEvent<Integer> event) {
            // Let the user know what they just did.
            Window.alert("You clicked tab " + event.getSelectedItem());
        }/*from  www  . j a va  2  s. c  o m*/
    });

    // Just for fun, let's disallow selection of 'bar'.
    bar.addBeforeSelectionHandler(new BeforeSelectionHandler<Integer>() {
        public void onBeforeSelection(BeforeSelectionEvent<Integer> event) {
            if (event.getItem().intValue() == 1) {
                event.cancel();
            }
        }
    });

    // Add it to the root panel.
    RootPanel.get().add(bar);
}

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From source file:tn.spindox.client.ui.TabBarExample.java

License:Apache License

public TabBar onModuleLoad() {
    // Create a tab bar with three items.
    TabBar bar = new TabBar();
    bar.addTab("Person Management");
    bar.addTab("Technology Area Management");
    bar.addTab("Technology Management");
    bar.addTab("Competence Management");

    // Hook up a tab listener to do something when the user selects a tab.
    bar.addSelectionHandler(new SelectionHandler<Integer>() {
        public void onSelection(SelectionEvent<Integer> event) {
            // Let the user know what they just did.
            Window.alert("You clicked tab " + event.getSelectedItem());
        }/* w  w w  . j  a  v  a  2 s  .  co  m*/
    });

    // Just for fun, let's disallow selection of 'bar'.
    bar.addBeforeSelectionHandler(new BeforeSelectionHandler<Integer>() {
        public void onBeforeSelection(BeforeSelectionEvent<Integer> event) {
            if (event.getItem().intValue() == 1) {
                event.cancel();
            }
        }
    });

    return bar;

}

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