Button

{% set typeClass = header_layout ? ' btn-' ~ header_layout : ' btn-primary' %}
{% set sizeClass = header_style ? ' btn-' ~ header_style : '' %}
{% set blockClass = button_display_block ? ' btn-block' : '' %}
{% set disabledAttribute = disabled ? ' disabled' : '' %}
{% set ariaPressedAttribute = active ? ' aria-pressed="true"' : '' %}
{% set activeClass = active ? ' active' : '' %}

{% if href %}
    {% set tag = 'a' %}
    {% set hrefAttribute = 'href="' ~ href ~ '"' %}
    {% set disabledClass = disabled ? ' disabled' : '' %}
    {# remove disabled attribute because a tag doesn't support it #}
    {% set disabledAttribute = disabled ? '' %}
{% else %}
    {% set tag = 'button' %}
{% endif %}

{% block main %}
    <{{ tag }}
        class="btn{{ typeClass }}{{ sizeClass }}{{ blockClass }}{{
        disabledClass }}{{ activeClass }}"
        {{ hrefAttribute }}
        {{ disabledAttribute }}
        {{ ariaPressedAttribute }}>
        {{ header }}
    </{{ tag }}>
{% endblock %}