/**
* Initializes the object and returns an instance holding the HTML code for
* a link tag.
*
* @param mixed $name link target.
* @param array $options link options.
* @param callable $block closure that generates the content to be surrounding to.
*/
public function __construct($name, $options = [], callable $block = null)
{
$html = '';
$num_args = $this->get_function_num_args(func_get_args());
$block = is_callable(func_get_arg($num_args - 1)) ? func_get_arg($num_args - 1) : null;
if (Base::get_dropdown_link()) {
$html = $this->build_dropdown_link($num_args, $name, $options, $block);
} elseif (Base::get_nav_link()) {
$html = $this->build_nav_link($num_args, $name, $options, $block);
} else {
$html = $this->build_standard_link($num_args, $name, $options, $block);
}
$this->set_html_object($html->get_html_object());
}
/**
* Returns the Divider object built.
*
* @return mixed a ContentTag instance or null.
*/
private function build_divider()
{
return Base::get_dropdown_link() ? new ContentTag('li', '', ['class' => 'divider']) : null;
}
/**
* Builds a standard Dropdown that is rendered within a Nav, so the Button
* is not going to be generated instead a LinkTo is generated to trigger the
* dropdown menu.
*
* @param array $options Dropdown's options.
* @param mixed $yield Dropdown's content.
* @return ContentTag a ContentTag instance that represents a Dropdown within a Nav.
*/
private function build_standard_dropdown_into_nav($options, $yield)
{
return new ContentTag('li', ['class' => 'dropdown'], function () use($options, $yield) {
$nav_link_status = Base::get_nav_link();
$dropdown_link_status = Base::get_dropdown_link();
Base::set_dropdown_link(false);
Base::set_nav_link(false);
$link = new LinkTo(['href' => '#', 'class' => 'dropdown-toggle', 'data-toggle' => 'dropdown'], function () use($options) {
return [$options['caption'], new ContentTag('span', '', ['class' => 'caret'])];
});
Base::set_nav_link($nav_link_status);
Base::set_dropdown_link($dropdown_link_status);
return [$link, new ContentTag('ul', $yield, ['class' => $options['list_class'], 'role' => 'menu', 'aria-labelledby' => $options['id']])];
});
}
