marko/test/autotests/components-browser/extend-component/components/app-button/component.js

module.exports = {
    onInput: function(input) {
        this.state = {
            size: input.size || 'normal',
            variant: input.variant || 'primary',
            className: input['class'],
            body: input.label || input.renderBody
        };
    },

    handleClick: function(event) {
        // Every Component instance is also an EventEmitter instance.
        // We will emit a custom "click" event when a DOM click event
        // is triggered
        this.emit('click', {
            event: event // Pass along the DOM event in case it is helpful to others
        });
    },

    // Add any other methods here
    setVariant: function(variant) {
        this.setState('variant', variant);
    },

    setSize: function(size) {
        this.setState('size', size);
    },

    setLabel: function(label) {
        this.setState('label', label);
    }
};