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<?php
/**
* Gallery Stream Widget Class
*
* Pulls post thumbnails by category or tag.
*
* @package News
* @subpackage Includes
* @since 0.1.0
*/
class News_Widget_Image_Stream extends WP_Widget {
/**
* Set up the widget's unique name, ID, class, description, and other options.
*
* @since 0.3.0
*/
function __construct() {
/* Set up the widget options. */
$widget_options = array(
'classname' => 'image-stream',
'description' => esc_html__( 'Displays image thumbnails in a gallery-like format.', 'news' )
);
/* Set up the widget control options. */
$control_options = array(
'width' => 200,
'height' => 350
);
/* Create the widget. */
$this->WP_Widget(
'news-image-stream', // $this->id_base
__( 'News: Image Stream', 'news' ), // $this->name
$widget_options, // $this->widget_options
$control_options // $this->control_options
);
}
/**
* Outputs the widget based on the arguments input through the widget controls.
*
* @since 0.1.0
*/
function widget( $sidebar, $instance ) {
extract( $sidebar );
/* Output the theme's $before_widget wrapper. */
echo $before_widget;
/* If a title was input by the user, display it. */
if ( !empty( $instance['title'] ) )
echo $before_title . apply_filters( 'widget_title', $instance['title'], $instance, $this->id_base ) . $after_title;
/* Query images. */
$loop = new WP_Query(
array(
'post_type' => 'attachment',
'post_mime_type' => 'image',
'post_status' => 'inherit',
'posts_per_page' => intval( $instance['posts_per_page'] ),
'orderby' => 'parent'
)
);
echo '<div>';
if ( $loop->have_posts() ) {
while ( $loop->have_posts() ) {
$loop->the_post();
echo wp_get_attachment_link( get_the_ID(), 'thumbnail', true );
}
} else {
echo '<p>' . __( 'There are currently no images found.', 'news' ) . '</p>';
}
echo '</div>';
/* Close the theme's widget wrapper. */
echo $after_widget;
}
/**
* Updates the widget control options for the particular instance of the widget.
*
* @since 0.1.0
*/
function update( $new_instance, $old_instance ) {
$instance = $new_instance;
$instance['title'] = strip_tags( $new_instance['title'] );
$instance['posts_per_page'] = strip_tags( $new_instance['posts_per_page'] );
return $instance;
}
/**
* Displays the widget control options in the Widgets admin screen.
*
* @since 0.1.0
*/
function form( $instance ) {
/* Set up the default form values. */
$defaults = array(
'title' => esc_attr__( 'Image Stream', 'news' ),
'posts_per_page' => 6,
);
/* Merge the user-selected arguments with the defaults. */
$instance = wp_parse_args( (array) $instance, $defaults ); ?>
<div class="hybrid-widget-controls columns-1">
<p>
<label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e( 'Title:', 'news' ); ?></label>
<input type="text" class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" value="<?php echo esc_attr( $instance['title'] ); ?>" />
</p>
<p>
<label for="<?php echo $this->get_field_id( 'posts_per_page' ); ?>"><?php _e( 'Limit:', 'news' ); ?></label>
<input type="text" class="widefat" id="<?php echo $this->get_field_id( 'posts_per_page' ); ?>" name="<?php echo $this->get_field_name( 'posts_per_page' ); ?>" value="<?php echo esc_attr( $instance['posts_per_page'] ); ?>" />
</p>
</div>
<div style="clear:both;">&nbsp;</div>
<?php
}
}
?>