/**
* Back-end widget form.
*
* @see WP_Widget::form()
*
* @since 1.0
*
* @param array $instance Previously saved values from database.
* @return void
*/
public function form($instance)
{
$instance = wp_parse_args((array) $instance, array('title' => '', 'href' => '', 'font' => '', 'colorscheme' => 'light'));
$this->display_title($instance['title']);
$this->display_href($instance['href']);
if (!class_exists('Facebook_Send_Button_Settings')) {
require_once dirname(dirname(dirname(__FILE__))) . '/admin/settings-send-button.php';
}
$send_button_settings = new Facebook_Send_Button_Settings($instance);
echo '<div><label for="' . $this->get_field_id('font') . '">' . esc_html(__('Font', 'facebook')) . '</label>: ';
$send_button_settings->display_font(array('id' => $this->get_field_id('font'), 'name' => $this->get_field_name('font')));
echo '</div><p></p>';
echo '<div style="line-height:2em">' . esc_html(__('Color scheme', 'facebook')) . ': ';
$send_button_settings->display_colorscheme(array('id' => $this->get_field_id('colorscheme'), 'name' => $this->get_field_name('colorscheme')));
echo '</div>';
}
