317 lines
6.9 KiB
PHP
317 lines
6.9 KiB
PHP
<?php
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if ( ! class_exists( 'acf_field_link' ) ) :
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class acf_field_link extends acf_field {
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/*
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* __construct
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*
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* This function will setup the field type data
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*
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* @type function
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* @date 5/03/2014
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* @since 5.0.0
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*
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* @param n/a
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* @return n/a
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*/
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function initialize() {
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// vars
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$this->name = 'link';
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$this->label = __( 'Link', 'acf' );
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$this->category = 'relational';
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$this->description = __( 'Allows you to specify a link and its properties such as title and target using the WordPress native link picker.', 'acf' );
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$this->preview_image = acf_get_url() . '/assets/images/field-type-previews/field-preview-link.png';
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$this->doc_url = acf_add_url_utm_tags( 'https://www.advancedcustomfields.com/resources/link/', 'docs', 'field-type-selection' );
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$this->defaults = array(
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'return_format' => 'array',
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);
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}
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/*
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* get_link
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*
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* description
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*
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* @type function
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* @date 16/5/17
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* @since 5.5.13
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*
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* @param $post_id (int)
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* @return $post_id (int)
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*/
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function get_link( $value = '' ) {
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// vars
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$link = array(
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'title' => '',
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'url' => '',
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'target' => '',
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);
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// array (ACF 5.6.0)
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if ( is_array( $value ) ) {
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$link = array_merge( $link, $value );
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// post id (ACF < 5.6.0)
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} elseif ( is_numeric( $value ) ) {
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$link['title'] = get_the_title( $value );
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$link['url'] = get_permalink( $value );
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// string (ACF < 5.6.0)
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} elseif ( is_string( $value ) ) {
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$link['url'] = $value;
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}
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// return
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return $link;
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}
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/*
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* render_field()
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*
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* Create the HTML interface for your field
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*
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* @param $field - an array holding all the field's data
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*
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* @type action
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* @since 3.6
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* @date 23/01/13
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*/
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function render_field( $field ) {
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// vars
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$div = array(
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'id' => $field['id'],
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'class' => $field['class'] . ' acf-link',
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);
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// render scripts/styles
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acf_enqueue_uploader();
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// get link
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$link = $this->get_link( $field['value'] );
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// classes
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if ( $link['url'] ) {
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$div['class'] .= ' -value';
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}
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if ( $link['target'] === '_blank' ) {
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$div['class'] .= ' -external';
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}
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/*
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<textarea id="<?php echo esc_attr($field['id']); ?>-textarea"><?php
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echo esc_textarea('<a href="'.$link['url'].'" target="'.$link['target'].'">'.$link['title'].'</a>');
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?></textarea>*/
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?>
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<div <?php echo acf_esc_attrs( $div ); ?>>
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<div class="acf-hidden">
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<a class="link-node" href="<?php echo esc_url( $link['url'] ); ?>" target="<?php echo esc_attr( $link['target'] ); ?>"><?php echo esc_html( $link['title'] ); ?></a>
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<?php foreach ( $link as $k => $v ) : ?>
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<?php
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acf_hidden_input(
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array(
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'class' => "input-$k",
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'name' => $field['name'] . "[$k]",
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'value' => $v,
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)
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);
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?>
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<?php endforeach; ?>
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</div>
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<a href="#" class="button" data-name="add" target=""><?php _e( 'Select Link', 'acf' ); ?></a>
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<div class="link-wrap">
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<span class="link-title"><?php echo esc_html( $link['title'] ); ?></span>
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<a class="link-url" href="<?php echo esc_url( $link['url'] ); ?>" target="_blank"><?php echo esc_html( $link['url'] ); ?></a>
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<i class="acf-icon -link-ext acf-js-tooltip" title="<?php _e( 'Opens in a new window/tab', 'acf' ); ?>"></i><a class="acf-icon -pencil -clear acf-js-tooltip" data-name="edit" href="#" title="<?php _e( 'Edit', 'acf' ); ?>"></a><a class="acf-icon -cancel -clear acf-js-tooltip" data-name="remove" href="#" title="<?php _e( 'Remove', 'acf' ); ?>"></a>
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</div>
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</div>
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<?php
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}
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/*
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* render_field_settings()
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*
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* Create extra options for your field. This is rendered when editing a field.
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* The value of $field['name'] can be used (like bellow) to save extra data to the $field
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*
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* @type action
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* @since 3.6
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* @date 23/01/13
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*
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* @param $field - an array holding all the field's data
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*/
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function render_field_settings( $field ) {
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acf_render_field_setting(
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$field,
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array(
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'label' => __( 'Return Value', 'acf' ),
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'instructions' => __( 'Specify the returned value on front end', 'acf' ),
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'type' => 'radio',
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'name' => 'return_format',
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'layout' => 'horizontal',
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'choices' => array(
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'array' => __( 'Link Array', 'acf' ),
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'url' => __( 'Link URL', 'acf' ),
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),
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)
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);
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}
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/*
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* format_value()
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*
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* This filter is appied to the $value after it is loaded from the db and before it is returned to the template
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*
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* @type filter
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* @since 3.6
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* @date 23/01/13
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*
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* @param $value (mixed) the value which was loaded from the database
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* @param $post_id (mixed) the $post_id from which the value was loaded
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* @param $field (array) the field array holding all the field options
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*
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* @return $value (mixed) the modified value
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*/
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function format_value( $value, $post_id, $field ) {
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// bail early if no value
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if ( empty( $value ) ) {
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return $value;
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}
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// get link
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$link = $this->get_link( $value );
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// format value
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if ( $field['return_format'] == 'url' ) {
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return $link['url'];
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}
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// return link
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return $link;
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}
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/*
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* validate_value
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*
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* description
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*
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* @type function
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* @date 11/02/2014
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* @since 5.0.0
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*
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* @param $post_id (int)
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* @return $post_id (int)
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*/
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function validate_value( $valid, $value, $field, $input ) {
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// bail early if not required
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if ( ! $field['required'] ) {
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return $valid;
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}
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// URL is required
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if ( empty( $value ) || empty( $value['url'] ) ) {
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return false;
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}
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// return
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return $valid;
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}
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/*
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* update_value()
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*
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* This filter is appied to the $value before it is updated in the db
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*
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* @type filter
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* @since 3.6
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* @date 23/01/13
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*
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* @param $value - the value which will be saved in the database
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* @param $post_id - the $post_id of which the value will be saved
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* @param $field - the field array holding all the field options
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*
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* @return $value - the modified value
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*/
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function update_value( $value, $post_id, $field ) {
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// Check if value is an empty array and convert to empty string.
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if ( empty( $value ) || empty( $value['url'] ) ) {
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$value = '';
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}
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// return
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return $value;
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}
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/**
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* Return the schema array for the REST API.
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*
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* @param array $field
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* @return array
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*/
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public function get_rest_schema( array $field ) {
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return array(
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'type' => array( 'object', 'null' ),
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'required' => ! empty( $field['required'] ),
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'properties' => array(
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'title' => array(
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'type' => 'string',
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),
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'url' => array(
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'type' => 'string',
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'required' => true,
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'format' => 'uri',
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),
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'target' => array(
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'type' => 'string',
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),
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),
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);
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}
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}
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// initialize
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acf_register_field_type( 'acf_field_link' );
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endif; // class_exists check
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?>
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