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class-fieldmanager-gallery.php
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class-fieldmanager-gallery.php
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<?php
/**
* Gallery field
* @package Fieldmanager
*/
class Fieldmanager_Gallery extends Fieldmanager_Field {
/**
* @var string
* Override field_class
*/
public $field_class = 'gallery';
/**
* @var string
* Button Label
*/
public $button_label;
/**
* @var string
* Button label in the gallery modal popup
*/
public $modal_button_label;
/**
* @var string
* Title of the gallery modal popup
*/
public $modal_title;
/**
* @var string
* Class to attach to thumbnail gallery display
*/
public $thumbnail_class = 'thumbnail';
/**
* @var bool
* Whether or not to allow a collection of images
*/
public $collection = false;
/**
* @var string
* Which size a preview image should be.
* Should be a string (e.g. "thumbnail", "large", or some size created with add_image_size)
* You can use an array here
*/
public $preview_size = 'thumbnail';
/**
* @var string
* Static variable so we only load gallery JS once
*/
public static $has_registered_gallery = False;
/**
* Plugin directory URL
* @var null
*/
private $plugin_url = null;
/**
* Plugin directory Path
* @var null
*/
private $plugin_dir = null;
/**
* Construct default attributes
* @param string $label
* @param array $options
*/
public function __construct( $label, $options = array() ) {
$this->plugin_dir = plugin_dir_path( __FILE__ );
$this->plugin_url = plugin_dir_url( __FILE__ );
if ( ! empty( $options['collection'] ) ) {
$this->button_label = __( 'Attach Gallery', 'fieldmanager' );
$this->modal_button_label = __( 'Select Attachments', 'fieldmanager' );
$this->modal_title = __( 'Choose Attachments', 'fieldmanager' );
} else {
$this->button_label = __( 'Attach a File', 'fieldmanager' );
$this->modal_button_label = __( 'Select Attachment', 'fieldmanager' );
$this->modal_title = __( 'Choose an Attachment', 'fieldmanager' );
}
add_action( 'admin_print_scripts', function() {
$post = get_post();
$args = array();
if ( isset( $post ) && $post->ID ) {
$args['post'] = $post->ID;
}
wp_enqueue_media( $args ); // generally on post pages this will not have an impact.
} );
if ( !self::$has_registered_gallery ) {
wp_enqueue_style( 'fm_gallery', $this->plugin_url . 'css/fieldmanager-gallery.css', array() );
wp_enqueue_script( 'fm_gallery', $this->plugin_url . 'js/fieldmanager-gallery.js', array( 'jquery' ) );
self::$has_registered_gallery = True;
}
parent::__construct( $label, $options );
}
/**
* Presave; ensure that the value is an absolute integer
*/
public function presave( $value, $current_value = array() ) {
if ( false !== stripos( $value, ',' ) ) {
$values = explode( ',', $value );
$clean_values = array();
foreach( $values as $dirty_value ) {
if ( is_numeric( $dirty_value ) && $dirty_value > 0 ) {
$clean_values[] = absint( $dirty_value );
}
}
return $clean_values;
} else {
if ( $value == 0 || !is_numeric( $value ) ) {
return NULL;
}
return absint( $value );
}
return absint( $value );
}
/**
* Form element
* @param mixed $value
* @return string HTML
*/
public function form_element( $value = array() ) {
$preview = '';
$values = is_array( $value ) ? $value : array( $value );
foreach ( $values as $value ) {
if ( is_numeric( $value ) && $value > 0 ) {
$attachment = get_post( $value );
$out = '<div class="gallery-item" data-id="' . $value . '">';
if ( strpos( $attachment->post_mime_type, 'image/' ) === 0 ) {
if ( ! $this->collection ) {
$out .= sprintf( '%s<br />', esc_html__( 'Uploaded image:', 'fieldmanager' ) );
}
$out .= '<a href="#">' . wp_get_attachment_image( $value, $this->preview_size, false, array( 'class' => $this->thumbnail_class ) ) . '</a>';
} else {
$out .= sprintf( '%s', esc_html__( 'Uploaded file:', 'fieldmanager' ) ) . ' ';
$out .= wp_get_attachment_link( $value, $this->preview_size, True, True, $attachment->post_title );
}
if ( ! $this->collection ) {
$out .= sprintf( '<br /><a href="#" class="fm-gallery-remove fm-delete">%s</a>', __( 'remove' ) );
}
$out .= '</div>';
$preview .= apply_filters( 'fieldmanager_gallery_preview', $out, $values, $attachment );
}
}
$input_value = implode( ',', $values );
return sprintf(
'<input type="button" class="fm-gallery-button button-secondary fm-incrementable" id="%1$s" value="%3$s" data-choose="%7$s" data-update="%8$s" data-collection="%9$s" />
<input type="hidden" name="%2$s" value="%4$s" class="fm-element fm-gallery-id" />
<div class="gallery-wrapper">%5$s</div>
<script type="text/javascript">
var fm_preview_size = fm_preview_size || [];
fm_preview_size["%1$s"]=%6$s;
</script>',
esc_attr( $this->get_element_id() ),
esc_attr( $this->get_form_name() ),
esc_attr( $this->button_label ),
esc_attr( $input_value ),
wp_kses_post( $preview ),
json_encode( $this->preview_size ),
esc_attr( $this->modal_title ),
esc_attr( $this->modal_button_label ),
intval( $this->collection )
);
}
}