index.mustache revision e2f644c80c2428330032af20658279d458938f20
402N/A <p>The Button component for YUI 3 is a light-weight, Y.Base wrapper around DOM elements you'd like treated like a button. This includes things like look & feel, state management, and accessibility.</p>
402N/Avar node = button.getNode();
1780N/A<p>In either case, you will receive a Y.Button instance that contains a few attributes, and wraps around a Y.Node instance. The markup generated will look something similar to:</p>
402N/A<p>At this point, you can modify `button`'s attributes, manipulate its state, or listen for change events.</p>
402N/A<p>Most commonly with button elements, you want to listen for any clicks that occur. That can be achieved with something like this...</p>
402N/A<p>Any event handlers can also be assigned by using the `on` property in the configuration object. Valid events include any <a href="">DOM events</a>, as well as Y.Button attribute change events (e.g. 'selectedChange').</p>
402N/A<p>So what do you get from Y.Button over just creating your own, via `new Y.Node.create('<button></button>')`</p>
402N/A <li><strong>Accessibility</strong> - Your buttons automatically create and manage their own ARIA states. This includes `aria-selected` and `aria-pressed`. Y.Button instances also automatically get the `role='button'` attribute to properly identify their purpose (as a button) to screen readers even if they are not a `<button>` or `<input type="button">` element.</li>
402N/A<li><strong>State management</strong> - Y.Button instances automatically apply classes, such as yui3-button-selected, yui3-button-disabled, and yui3-button-focused, which are useful for styling purposes. Also, assigning a type of 'toggle' will fire a 'selectedChange' event only when it's state changes from selected to unselected, or vice-versa, eliminating the classical case of listening for 'click' and then checking to see if the state changed.</li>
402N/A<p><em>Note: In the future, Y.Button instances will be capable of being assigned to groups and managed via a new ButtonGroup module.</em></p>
402N/A<p>YUI's Button component was designed with the idea in mind that you may only want button styles, no JS functionality. Instead of `use('button')`, you can just include the `cssbuttons` sub-module. This can be done either dynamically by `use('cssbuttons')` or statically with a <link> tag. Including this module will load in a stylesheet consisting of the following classes:</p>