335 lines
10 KiB
PHP
335 lines
10 KiB
PHP
<?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: placeholder is 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 is 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' => 'none',
|
|
'media_prop' => 'link',
|
|
'description' => __( 'Link To' ),
|
|
'should_preview_update' => false,
|
|
),
|
|
'link_url' => array(
|
|
'type' => 'string',
|
|
'default' => '',
|
|
'format' => 'uri',
|
|
'media_prop' => 'linkUrl',
|
|
'description' => __( 'URL' ),
|
|
'should_preview_update' => false,
|
|
),
|
|
'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 = $attachment->post_excerpt;
|
|
if ( $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 ) {
|
|
$image = sprintf(
|
|
'<a href="%1$s" class="%2$s" rel="%3$s" target="%4$s">%5$s</a>',
|
|
esc_url( $url ),
|
|
esc_attr( $instance['link_classes'] ),
|
|
esc_attr( $instance['link_rel'] ),
|
|
! empty( $instance['link_target_blank'] ) ? '_blank' : '',
|
|
$image
|
|
);
|
|
}
|
|
|
|
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-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
|
|
}
|
|
}
|