Example usage for com.google.gwt.aria.client Roles getTooltipRole

Introduction

In this page you can find the example usage for com.google.gwt.aria.client Roles getTooltipRole.

Prototype

public static TooltipRole getTooltipRole() 

Source Link

Usage

From source file:com.vaadin.client.VTooltip.java

License:Apache License

/**
 * Used to show tooltips; usually used via the singleton in
 * {@link ApplicationConnection}. NOTE that #setOwner(Widget)} should be
 * called after instantiating./*from   w  w  w  .j  a  v a 2  s  .  com*/
 * 
 * @see ApplicationConnection#getVTooltip()
 */
public VTooltip() {
    super(false, false, true);
    setStyleName(CLASSNAME);
    FlowPanel layout = new FlowPanel();
    setWidget(layout);
    layout.add(em);
    DOM.setElementProperty(description, "className", CLASSNAME + "-text");
    DOM.appendChild(layout.getElement(), description);
    setSinkShadowEvents(true);

    // When a tooltip is shown, the content of the tooltip changes. With a
    // tooltip being a live-area, this change is notified to a assistive
    // device.
    Roles.getTooltipRole().set(getElement());
    Roles.getTooltipRole().setAriaLiveProperty(getElement(), LiveValue.ASSERTIVE);
    Roles.getTooltipRole().setAriaRelevantProperty(getElement(), RelevantValue.ADDITIONS);

    // Tooltip needs to be on top of other VOverlay elements.
    setZIndex(VOverlay.Z_INDEX + 1);
}

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