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- <?php
- /**
- * Widget API: WP_Widget_Media_Image class
- *
- * @package WordPress
- * @subpackage Widgets
- * @since 4.8.0
- */
-
- /**
- * Core class that implements an image widget.
- *
- * @since 4.8.0
- *
- * @see WP_Widget
- */
- class WP_Widget_Media_Image extends WP_Widget_Media {
-
- /**
- * Constructor.
- *
- * @since 4.8.0
- */
- public function __construct() {
- parent::__construct( 'media_image', __( 'Image' ), array(
- 'description' => __( 'Displays an image.' ),
- 'mime_type' => 'image',
- ) );
-
- $this->l10n = array_merge( $this->l10n, array(
- 'no_media_selected' => __( 'No image selected' ),
- 'add_media' => _x( 'Add Image', 'label for button in the image widget' ),
- 'replace_media' => _x( 'Replace Image', 'label for button in the image widget; should preferably not be longer than ~13 characters long' ),
- 'edit_media' => _x( 'Edit Image', 'label for button in the image widget; should preferably not be longer than ~13 characters long' ),
- 'missing_attachment' => sprintf(
- /* translators: %s: URL to media library */
- __( 'We can’t find that image. Check your <a href="%s">media library</a> and make sure it wasn’t deleted.' ),
- esc_url( admin_url( 'upload.php' ) )
- ),
- /* translators: %d: widget count */
- 'media_library_state_multi' => _n_noop( 'Image Widget (%d)', 'Image Widget (%d)' ),
- 'media_library_state_single' => __( 'Image Widget' ),
- ) );
- }
-
- /**
- * Get schema for properties of a widget instance (item).
- *
- * @since 4.8.0
- *
- * @see WP_REST_Controller::get_item_schema()
- * @see WP_REST_Controller::get_additional_fields()
- * @link https://core.trac.wordpress.org/ticket/35574
- * @return array Schema for properties.
- */
- public function get_instance_schema() {
- return array_merge(
- parent::get_instance_schema(),
- array(
- 'size' => array(
- 'type' => 'string',
- 'enum' => array_merge( get_intermediate_image_sizes(), array( 'full', 'custom' ) ),
- 'default' => 'medium',
- 'description' => __( 'Size' ),
- ),
- 'width' => array( // Via 'customWidth', only when size=custom; otherwise via 'width'.
- 'type' => 'integer',
- 'minimum' => 0,
- 'default' => 0,
- 'description' => __( 'Width' ),
- ),
- 'height' => array( // Via 'customHeight', only when size=custom; otherwise via 'height'.
- 'type' => 'integer',
- 'minimum' => 0,
- 'default' => 0,
- 'description' => __( 'Height' ),
- ),
-
- 'caption' => array(
- 'type' => 'string',
- 'default' => '',
- 'sanitize_callback' => 'wp_kses_post',
- 'description' => __( 'Caption' ),
- 'should_preview_update' => false,
- ),
- 'alt' => array(
- 'type' => 'string',
- 'default' => '',
- 'sanitize_callback' => 'sanitize_text_field',
- 'description' => __( 'Alternative Text' ),
- ),
- 'link_type' => array(
- 'type' => 'string',
- 'enum' => array( 'none', 'file', 'post', 'custom' ),
- 'default' => 'custom',
- 'media_prop' => 'link',
- 'description' => __( 'Link To' ),
- 'should_preview_update' => true,
- ),
- 'link_url' => array(
- 'type' => 'string',
- 'default' => '',
- 'format' => 'uri',
- 'media_prop' => 'linkUrl',
- 'description' => __( 'URL' ),
- 'should_preview_update' => true,
- ),
- 'image_classes' => array(
- 'type' => 'string',
- 'default' => '',
- 'sanitize_callback' => array( $this, 'sanitize_token_list' ),
- 'media_prop' => 'extraClasses',
- 'description' => __( 'Image CSS Class' ),
- 'should_preview_update' => false,
- ),
- 'link_classes' => array(
- 'type' => 'string',
- 'default' => '',
- 'sanitize_callback' => array( $this, 'sanitize_token_list' ),
- 'media_prop' => 'linkClassName',
- 'should_preview_update' => false,
- 'description' => __( 'Link CSS Class' ),
- ),
- 'link_rel' => array(
- 'type' => 'string',
- 'default' => '',
- 'sanitize_callback' => array( $this, 'sanitize_token_list' ),
- 'media_prop' => 'linkRel',
- 'description' => __( 'Link Rel' ),
- 'should_preview_update' => false,
- ),
- 'link_target_blank' => array(
- 'type' => 'boolean',
- 'default' => false,
- 'media_prop' => 'linkTargetBlank',
- 'description' => __( 'Open link in a new tab' ),
- 'should_preview_update' => false,
- ),
- 'image_title' => array(
- 'type' => 'string',
- 'default' => '',
- 'sanitize_callback' => 'sanitize_text_field',
- 'media_prop' => 'title',
- 'description' => __( 'Image Title Attribute' ),
- 'should_preview_update' => false,
- ),
-
- /*
- * There are two additional properties exposed by the PostImage modal
- * that don't seem to be relevant, as they may only be derived read-only
- * values:
- * - originalUrl
- * - aspectRatio
- * - height (redundant when size is not custom)
- * - width (redundant when size is not custom)
- */
- )
- );
- }
-
- /**
- * Render the media on the frontend.
- *
- * @since 4.8.0
- *
- * @param array $instance Widget instance props.
- * @return void
- */
- public function render_media( $instance ) {
- $instance = array_merge( wp_list_pluck( $this->get_instance_schema(), 'default' ), $instance );
- $instance = wp_parse_args( $instance, array(
- 'size' => 'thumbnail',
- ) );
-
- $attachment = null;
- if ( $this->is_attachment_with_mime_type( $instance['attachment_id'], $this->widget_options['mime_type'] ) ) {
- $attachment = get_post( $instance['attachment_id'] );
- }
- if ( $attachment ) {
- $caption = '';
- if ( ! isset( $instance['caption'] ) ) {
- $caption = $attachment->post_excerpt;
- } elseif ( trim( $instance['caption'] ) ) {
- $caption = $instance['caption'];
- }
-
- $image_attributes = array(
- 'class' => sprintf( 'image wp-image-%d %s', $attachment->ID, $instance['image_classes'] ),
- 'style' => 'max-width: 100%; height: auto;',
- );
- if ( ! empty( $instance['image_title'] ) ) {
- $image_attributes['title'] = $instance['image_title'];
- }
-
- if ( $instance['alt'] ) {
- $image_attributes['alt'] = $instance['alt'];
- }
-
- $size = $instance['size'];
- if ( 'custom' === $size || ! in_array( $size, array_merge( get_intermediate_image_sizes(), array( 'full' ) ), true ) ) {
- $size = array( $instance['width'], $instance['height'] );
- }
- $image_attributes['class'] .= sprintf( ' attachment-%1$s size-%1$s', is_array( $size ) ? join( 'x', $size ) : $size );
-
- $image = wp_get_attachment_image( $attachment->ID, $size, false, $image_attributes );
-
- $caption_size = _wp_get_image_size_from_meta( $instance['size'], wp_get_attachment_metadata( $attachment->ID ) );
- $width = empty( $caption_size[0] ) ? 0 : $caption_size[0];
-
- } else {
- if ( empty( $instance['url'] ) ) {
- return;
- }
-
- $instance['size'] = 'custom';
- $caption = $instance['caption'];
- $width = $instance['width'];
- $classes = 'image ' . $instance['image_classes'];
- if ( 0 === $instance['width'] ) {
- $instance['width'] = '';
- }
- if ( 0 === $instance['height'] ) {
- $instance['height'] = '';
- }
-
- $image = sprintf( '<img class="%1$s" src="%2$s" alt="%3$s" width="%4$s" height="%5$s" />',
- esc_attr( $classes ),
- esc_url( $instance['url'] ),
- esc_attr( $instance['alt'] ),
- esc_attr( $instance['width'] ),
- esc_attr( $instance['height'] )
- );
- } // End if().
-
- $url = '';
- if ( 'file' === $instance['link_type'] ) {
- $url = $attachment ? wp_get_attachment_url( $attachment->ID ) : $instance['url'];
- } elseif ( $attachment && 'post' === $instance['link_type'] ) {
- $url = get_attachment_link( $attachment->ID );
- } elseif ( 'custom' === $instance['link_type'] && ! empty( $instance['link_url'] ) ) {
- $url = $instance['link_url'];
- }
-
- if ( $url ) {
- $link = sprintf( '<a href="%s"', esc_url( $url ) );
- if ( ! empty( $instance['link_classes'] ) ) {
- $link .= sprintf( ' class="%s"', esc_attr( $instance['link_classes'] ) );
- }
- if ( ! empty( $instance['link_rel'] ) ) {
- $link .= sprintf( ' rel="%s"', esc_attr( $instance['link_rel'] ) );
- }
- if ( ! empty( $instance['link_target_blank'] ) ) {
- $link .= ' target="_blank"';
- }
- $link .= '>';
- $link .= $image;
- $link .= '</a>';
- $image = $link;
- }
-
- if ( $caption ) {
- $image = img_caption_shortcode( array(
- 'width' => $width,
- 'caption' => $caption,
- ), $image );
- }
-
- echo $image;
- }
-
- /**
- * Loads the required media files for the media manager and scripts for media widgets.
- *
- * @since 4.8.0
- */
- public function enqueue_admin_scripts() {
- parent::enqueue_admin_scripts();
-
- $handle = 'media-image-widget';
- wp_enqueue_script( $handle );
-
- $exported_schema = array();
- foreach ( $this->get_instance_schema() as $field => $field_schema ) {
- $exported_schema[ $field ] = wp_array_slice_assoc( $field_schema, array( 'type', 'default', 'enum', 'minimum', 'format', 'media_prop', 'should_preview_update' ) );
- }
- wp_add_inline_script(
- $handle,
- sprintf(
- 'wp.mediaWidgets.modelConstructors[ %s ].prototype.schema = %s;',
- wp_json_encode( $this->id_base ),
- wp_json_encode( $exported_schema )
- )
- );
-
- wp_add_inline_script(
- $handle,
- sprintf(
- '
- wp.mediaWidgets.controlConstructors[ %1$s ].prototype.mime_type = %2$s;
- wp.mediaWidgets.controlConstructors[ %1$s ].prototype.l10n = _.extend( {}, wp.mediaWidgets.controlConstructors[ %1$s ].prototype.l10n, %3$s );
- ',
- wp_json_encode( $this->id_base ),
- wp_json_encode( $this->widget_options['mime_type'] ),
- wp_json_encode( $this->l10n )
- )
- );
- }
-
- /**
- * Render form template scripts.
- *
- * @since 4.8.0
- */
- public function render_control_template_scripts() {
- parent::render_control_template_scripts();
-
- ?>
- <script type="text/html" id="tmpl-wp-media-widget-image-fields">
- <# var elementIdPrefix = 'el' + String( Math.random() ) + '_'; #>
- <# if ( data.url ) { #>
- <p class="media-widget-image-link">
- <label for="{{ elementIdPrefix }}linkUrl"><?php esc_html_e( 'Link to:' ); ?></label>
- <input id="{{ elementIdPrefix }}linkUrl" type="text" class="widefat link" value="{{ data.link_url }}" placeholder="http://" pattern="((\w+:)?\/\/\w.*|\w+:(?!\/\/$)|\/|\?|#).*">
- </p>
- <# } #>
- </script>
- <script type="text/html" id="tmpl-wp-media-widget-image-preview">
- <# var describedById = 'describedBy-' + String( Math.random() ); #>
- <# if ( data.error && 'missing_attachment' === data.error ) { #>
- <div class="notice notice-error notice-alt notice-missing-attachment">
- <p><?php echo $this->l10n['missing_attachment']; ?></p>
- </div>
- <# } else if ( data.error ) { #>
- <div class="notice notice-error notice-alt">
- <p><?php _e( 'Unable to preview media due to an unknown error.' ); ?></p>
- </div>
- <# } else if ( data.url ) { #>
- <img class="attachment-thumb" src="{{ data.url }}" draggable="false" alt="{{ data.alt }}" <# if ( ! data.alt && data.currentFilename ) { #> aria-describedby="{{ describedById }}" <# } #> />
- <# if ( ! data.alt && data.currentFilename ) { #>
- <p class="hidden" id="{{ describedById }}"><?php
- /* translators: placeholder is image filename */
- echo sprintf( __( 'Current image: %s' ), '{{ data.currentFilename }}' );
- ?></p>
- <# } #>
- <# } #>
- </script>
- <?php
- }
- }
-