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<?php
class Jetpack_Readmill_Widget extends WP_Widget {
var $default_title, $default_size;
/**
* Registers the widget with WordPress.
*/
function __construct() {
parent::__construct(
'jetpack_readmill_widget', // Base ID
apply_filters( 'jetpack_widget_name', esc_html__( 'Send To Readmill', 'jetpack' ) ),
array(
'description' => esc_html__( 'Readmill is the best book reader for phones and tablets. With this widget you can enable users to send a book to their device with one click.', 'jetpack' ),
)
);
if ( is_active_widget( false, false, $this->id_base ) || is_active_widget( false, false, 'monster' ) ) {
add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_script' ) );
}
$this->default_title = __( 'Send To Readmill', 'jetpack' );
$this->default_size = 'large';
}
function enqueue_script() {
wp_enqueue_script( 'readmill', 'https://platform.readmill.com/send.js', array(), '20130220', false );
}
/**
* Back-end widget form.
*
* @see WP_Widget::form()
*
* @param array $instance Previously saved values from database.
*/
function form( $instance ) {
$title = isset( $instance['title' ] ) ? $instance['title'] : false;
if ( false === $title ) {
$title = $this->default_title;
}
$epub_link = isset( $instance['epub_link'] ) ? $instance['epub_link'] : '';
$buy_link = isset( $instance['buy_link'] ) ? $instance['buy_link'] : '';
$size = isset( $instance['size'] ) ? $instance['size'] : $this->default_size;
?>
<p><?php printf( __( "Just enter the URL to your book, make sure it's a PDF or EPUB file, and you are ready to go. For more help, head to <a href='%s'>the Readmill WordPress Widget support page</a>." ), 'http://en.support.wordpress.com/widgets/readmill/' ); ?></p>
<p>
<label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php esc_html_e( 'Title:', 'jetpack' ); ?></label>
<input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" type="text" value="<?php echo esc_attr( $title ); ?>" />
</p>
<p>
<label for="<?php echo $this->get_field_id( 'epub_link' ); ?>"><?php esc_html_e( 'Download URL:', 'jetpack' ); ?></label>
<input class="widefat" id="<?php echo $this->get_field_id( 'epub_link' ); ?>" name="<?php echo $this->get_field_name( 'epub_link' ); ?>" type="text" value="<?php echo esc_attr( $epub_link ); ?>" />
</p>
<p>
<label for="<?php echo $this->get_field_id( 'buy_link' ); ?>"><?php esc_html_e( 'Item URL:', 'jetpack' ); ?></label>
<input class="widefat" id="<?php echo $this->get_field_id( 'buy_link' ); ?>" name="<?php echo $this->get_field_name( 'buy_link' ); ?>" type="text" value="<?php echo esc_attr( $buy_link ); ?>" />
</p>
<p>
<label><?php esc_html_e( 'What size icon?', 'jetpack' ); ?></label>
<ul>
<li><label><input id="<?php echo $this->get_field_id( 'size' ); ?>-few" name="<?php echo $this->get_field_name( 'size' ); ?>" type="radio" value="large" <?php checked( 'large', $size ); ?> /> <?php esc_html_e( 'Large', 'jetpack' ); ?></label></li>
<li><label><input id="<?php echo $this->get_field_id( 'size' ); ?>-lots" name="<?php echo $this->get_field_name( 'size' ); ?>" type="radio" value="small" <?php checked( 'small', $size ); ?> /> <?php esc_html_e( 'Small', 'jetpack' ); ?></label></li>
</ul>
</p>
<?php
}
/**
* Sanitize widget form values as they are saved.
*
* @see WP_Widget::update()
*
* @param array $new_instance Values just sent to be saved.
* @param array $old_instance Previously saved values from database.
*
* @return array Updated safe values to be saved.
*/
function update( $new_instance, $old_instance ) {
$instance = array();
$instance['title'] = wp_kses( $new_instance['title'], array() );
$instance['epub_link'] = wp_kses( $new_instance['epub_link'], array() );
$instance['buy_link'] = wp_kses( $new_instance['buy_link'], array() );
$instance['size'] = wp_kses( $new_instance['size'], array() );
if ( $this->default_title === $instance['title'] ) {
$instance['title'] = false; // Store as false in case of language change
}
return $instance;
}
/**
* Front-end display of widget.
*
* @see WP_Widget::widget()
*
* @param array $args Widget arguments.
* @param array $instance Saved values from database.
*/
function widget( $args, $instance ) {
$title = isset( $instance['title' ] ) ? $instance['title'] : false;
if ( false === $title )
$title = $this->default_title;
$title = apply_filters( 'widget_title', $title );
echo $args['before_widget'];
if ( ! empty( $title ) )
echo $args['before_title'] . $title . $args['after_title'];
$epub_link = isset( $instance['epub_link'] ) ? $instance['epub_link'] : '';
$buy_link = isset( $instance['buy_link'] ) ? $instance['buy_link'] : '';
$size = isset( $instance['size'] ) ? $instance['size'] : $this->default_size;
if ( empty( $epub_link ) && current_user_can( 'edit_theme_options' ) ) :
?><p><?php esc_html_e( 'Your ePub link is empty. Provide an ePub link to display the Send to Readmill widget.', 'jetpack' ); ?></p><?php
else :
?><a class="send-to-readmill" href="https://readmill.com" data-download-url="<?php echo esc_attr( $epub_link ); ?>" data-buy-url="<?php echo esc_attr( $epub_link ); ?>" data-display="<?php echo esc_attr( $size ); ?>">Send to Readmill</a><?php
endif;
echo $args['after_widget'];
}
}
function jetpack_readmill_widget_init() {
register_widget( 'Jetpack_Readmill_Widget' );
}
add_action( 'widgets_init', 'jetpack_readmill_widget_init' );
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