453 lines
10 KiB
PHP
453 lines
10 KiB
PHP
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<?php
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if ( ! class_exists( 'acf_field_image' ) ) :
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class acf_field_image 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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$this->name = 'image';
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$this->label = __( 'Image', 'acf' );
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$this->category = 'content';
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$this->defaults = array(
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'return_format' => 'array',
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'preview_size' => 'medium',
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'library' => 'all',
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'min_width' => 0,
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'min_height' => 0,
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'min_size' => 0,
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'max_width' => 0,
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'max_height' => 0,
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'max_size' => 0,
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'mime_types' => '',
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);
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// filters
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add_filter( 'get_media_item_args', array( $this, 'get_media_item_args' ) );
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}
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/*
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* input_admin_enqueue_scripts
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*
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* description
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*
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* @type function
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* @date 16/12/2015
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* @since 5.3.2
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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 input_admin_enqueue_scripts() {
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// localize
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acf_localize_text(
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array(
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'Select Image' => __( 'Select Image', 'acf' ),
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'Edit Image' => __( 'Edit Image', 'acf' ),
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'Update Image' => __( 'Update Image', 'acf' ),
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'All images' => __( 'All images', 'acf' ),
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)
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);
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}
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/**
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* Renders the field HTML.
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*
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* @date 23/01/13
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* @since 3.6.0
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*
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* @param array $field The field settings.
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* @return void
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*/
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function render_field( $field ) {
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$uploader = acf_get_setting( 'uploader' );
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// Enqueue uploader scripts
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if ( $uploader === 'wp' ) {
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acf_enqueue_uploader();
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}
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// Elements and attributes.
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$value = '';
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$div_attrs = array(
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'class' => 'acf-image-uploader',
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'data-preview_size' => $field['preview_size'],
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'data-library' => $field['library'],
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'data-mime_types' => $field['mime_types'],
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'data-uploader' => $uploader,
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);
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$img_attrs = array(
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'src' => '',
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'alt' => '',
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'data-name' => 'image',
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);
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// Detect value.
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if ( $field['value'] && is_numeric( $field['value'] ) ) {
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$image = wp_get_attachment_image_src( $field['value'], $field['preview_size'] );
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if ( $image ) {
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$value = $field['value'];
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$img_attrs['src'] = $image[0];
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$img_attrs['alt'] = get_post_meta( $field['value'], '_wp_attachment_image_alt', true );
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$div_attrs['class'] .= ' has-value';
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}
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}
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// Add "preview size" max width and height style.
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// Apply max-width to wrap, and max-height to img for max compatibility with field widths.
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$size = acf_get_image_size( $field['preview_size'] );
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$size_w = $size['width'] ? $size['width'] . 'px' : '100%';
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$size_h = $size['height'] ? $size['height'] . 'px' : '100%';
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$img_attrs['style'] = sprintf( 'max-height: %s;', $size_h );
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// Render HTML.
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?>
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<div <?php echo acf_esc_attrs( $div_attrs ); ?>>
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<?php
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acf_hidden_input(
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array(
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'name' => $field['name'],
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'value' => $value,
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)
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);
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?>
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<div class="show-if-value image-wrap" style="max-width: <?php echo esc_attr( $size_w ); ?>">
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<img <?php echo acf_esc_attrs( $img_attrs ); ?> />
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<div class="acf-actions -hover">
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<?php if ( $uploader !== 'basic' ) : ?>
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<a class="acf-icon -pencil dark" data-name="edit" href="#" title="<?php _e( 'Edit', 'acf' ); ?>"></a>
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<?php endif; ?>
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<a class="acf-icon -cancel dark" data-name="remove" href="#" title="<?php _e( 'Remove', 'acf' ); ?>"></a>
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</div>
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</div>
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<div class="hide-if-value">
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<?php if ( $uploader === 'basic' ) : ?>
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<?php if ( $field['value'] && ! is_numeric( $field['value'] ) ) : ?>
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<div class="acf-error-message"><p><?php echo acf_esc_html( $field['value'] ); ?></p></div>
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<?php endif; ?>
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<label class="acf-basic-uploader">
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<?php
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acf_file_input(
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array(
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'name' => $field['name'],
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'id' => $field['id'],
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)
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);
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?>
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</label>
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<?php else : ?>
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<p><?php _e( 'No image selected', 'acf' ); ?> <a data-name="add" class="acf-button button" href="#"><?php _e( 'Add Image', 'acf' ); ?></a></p>
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<?php endif; ?>
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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( $field ) {
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// clear numeric settings
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$clear = array(
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'min_width',
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'min_height',
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'min_size',
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'max_width',
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'max_height',
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'max_size',
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);
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foreach ( $clear as $k ) {
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if ( empty( $field[ $k ] ) ) {
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$field[ $k ] = '';
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}
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}
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// return_format
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acf_render_field_setting(
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$field,
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array(
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'label' => __( 'Return Format', 'acf' ),
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'instructions' => '',
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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' => __( 'Image Array', 'acf' ),
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'url' => __( 'Image URL', 'acf' ),
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'id' => __( 'Image ID', 'acf' ),
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),
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)
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);
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// preview_size
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acf_render_field_setting(
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$field,
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array(
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'label' => __( 'Preview Size', 'acf' ),
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'instructions' => '',
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'type' => 'select',
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'name' => 'preview_size',
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'choices' => acf_get_image_sizes(),
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)
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);
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// library
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acf_render_field_setting(
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$field,
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array(
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'label' => __( 'Library', 'acf' ),
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'instructions' => __( 'Limit the media library choice', 'acf' ),
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'type' => 'radio',
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'name' => 'library',
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'layout' => 'horizontal',
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'choices' => array(
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'all' => __( 'All', 'acf' ),
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'uploadedTo' => __( 'Uploaded to post', 'acf' ),
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),
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)
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);
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// min
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acf_render_field_setting(
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$field,
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array(
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'label' => __( 'Minimum', 'acf' ),
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'instructions' => __( 'Restrict which images can be uploaded', 'acf' ),
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'type' => 'text',
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'name' => 'min_width',
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'prepend' => __( 'Width', 'acf' ),
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'append' => 'px',
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)
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);
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acf_render_field_setting(
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$field,
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array(
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'label' => '',
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'type' => 'text',
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'name' => 'min_height',
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'prepend' => __( 'Height', 'acf' ),
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'append' => 'px',
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'_append' => 'min_width',
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)
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);
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acf_render_field_setting(
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$field,
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array(
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'label' => '',
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'type' => 'text',
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'name' => 'min_size',
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'prepend' => __( 'File size', 'acf' ),
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'append' => 'MB',
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'_append' => 'min_width',
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)
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);
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// max
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acf_render_field_setting(
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$field,
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array(
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'label' => __( 'Maximum', 'acf' ),
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'instructions' => __( 'Restrict which images can be uploaded', 'acf' ),
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'type' => 'text',
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'name' => 'max_width',
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'prepend' => __( 'Width', 'acf' ),
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'append' => 'px',
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)
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);
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acf_render_field_setting(
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$field,
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array(
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'label' => '',
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'type' => 'text',
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'name' => 'max_height',
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'prepend' => __( 'Height', 'acf' ),
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'append' => 'px',
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'_append' => 'max_width',
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)
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);
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acf_render_field_setting(
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$field,
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array(
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'label' => '',
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'type' => 'text',
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'name' => 'max_size',
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'prepend' => __( 'File size', 'acf' ),
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'append' => 'MB',
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'_append' => 'max_width',
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)
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);
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// allowed type
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acf_render_field_setting(
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$field,
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array(
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'label' => __( 'Allowed file types', 'acf' ),
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'instructions' => __( 'Comma separated list. Leave blank for all types', 'acf' ),
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'type' => 'text',
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'name' => 'mime_types',
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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 false;
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}
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// bail early if not numeric (error message)
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if ( ! is_numeric( $value ) ) {
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return false;
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}
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// convert to int
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$value = intval( $value );
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// format
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if ( $field['return_format'] == 'url' ) {
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return wp_get_attachment_url( $value );
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} elseif ( $field['return_format'] == 'array' ) {
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return acf_get_attachment( $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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* get_media_item_args
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*
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* description
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*
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* @type function
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* @date 27/01/13
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* @since 3.6.0
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*
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* @param $vars (array)
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* @return $vars
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*/
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function get_media_item_args( $vars ) {
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$vars['send'] = true;
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return( $vars );
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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
|
||
|
|
*
|
||
|
|
* @type filter
|
||
|
|
* @since 3.6
|
||
|
|
* @date 23/01/13
|
||
|
|
*
|
||
|
|
* @param $value - the value which will be saved in the database
|
||
|
|
* @param $post_id - the $post_id of which the value will be saved
|
||
|
|
* @param $field - the field array holding all the field options
|
||
|
|
*
|
||
|
|
* @return $value - the modified value
|
||
|
|
*/
|
||
|
|
|
||
|
|
function update_value( $value, $post_id, $field ) {
|
||
|
|
|
||
|
|
return acf_get_field_type( 'file' )->update_value( $value, $post_id, $field );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* validate_value
|
||
|
|
*
|
||
|
|
* This function will validate a basic file input
|
||
|
|
*
|
||
|
|
* @type function
|
||
|
|
* @date 11/02/2014
|
||
|
|
* @since 5.0.0
|
||
|
|
*
|
||
|
|
* @param $post_id (int)
|
||
|
|
* @return $post_id (int)
|
||
|
|
*/
|
||
|
|
|
||
|
|
function validate_value( $valid, $value, $field, $input ) {
|
||
|
|
|
||
|
|
return acf_get_field_type( 'file' )->validate_value( $valid, $value, $field, $input );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// initialize
|
||
|
|
acf_register_field_type( 'acf_field_image' );
|
||
|
|
|
||
|
|
endif; // class_exists check
|
||
|
|
|
||
|
|
?>
|