WordPress/wp-includes/widgets/class-wp-widget-media-image.php
Gary Pendergast aaf99e6913 Code is Poetry.
WordPress' code just... wasn't.
This is now dealt with.

Props jrf, pento, netweb, GaryJ, jdgrimes, westonruter, Greg Sherwood from PHPCS, and everyone who's ever contributed to WPCS and PHPCS.
Fixes #41057.


Built from https://develop.svn.wordpress.org/trunk@42343


git-svn-id: http://core.svn.wordpress.org/trunk@42172 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-11-30 23:11:00 +00:00

361 lines
12 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: %s: URL to media library */
__( 'We can&#8217;t find that image. Check your <a href="%s">media library</a> and make sure it wasn&#8217;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="url" class="widefat link" value="{{ data.link_url }}" placeholder="http://">
</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
}
}