275 lines
8.4 KiB
PHP
275 lines
8.4 KiB
PHP
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<?php
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/**
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* Widget API: WP_Widget_Media_Video class
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*
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* @package WordPress
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* @subpackage Widgets
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* @since 4.8.0
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*/
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/**
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* Core class that implements a video widget.
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*
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* @since 4.8.0
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*
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* @see WP_Widget_Media
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* @see WP_Widget
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*/
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class WP_Widget_Media_Video extends WP_Widget_Media {
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/**
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* Constructor.
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*
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* @since 4.8.0
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*/
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public function __construct() {
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parent::__construct(
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'media_video',
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__( 'Video' ),
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array(
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'description' => __( 'Displays a video from the media library or from YouTube, Vimeo, or another provider.' ),
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'mime_type' => 'video',
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)
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);
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$this->l10n = array_merge(
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$this->l10n,
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array(
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'no_media_selected' => __( 'No video selected' ),
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'add_media' => _x( 'Add Video', 'label for button in the video widget' ),
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'replace_media' => _x( 'Replace Video', 'label for button in the video widget; should preferably not be longer than ~13 characters long' ),
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'edit_media' => _x( 'Edit Video', 'label for button in the video widget; should preferably not be longer than ~13 characters long' ),
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'missing_attachment' => sprintf(
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/* translators: %s: URL to media library. */
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__( 'That video cannot be found. Check your <a href="%s">media library</a> and make sure it was not deleted.' ),
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esc_url( admin_url( 'upload.php' ) )
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),
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/* translators: %d: Widget count. */
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'media_library_state_multi' => _n_noop( 'Video Widget (%d)', 'Video Widget (%d)' ),
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'media_library_state_single' => __( 'Video Widget' ),
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/* translators: %s: A list of valid video file extensions. */
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'unsupported_file_type' => sprintf( __( 'Sorry, the video at the supplied URL cannot be loaded. Please check that the URL is for a supported video file (%s) or stream (e.g. YouTube and Vimeo).' ), '<code>.' . implode( '</code>, <code>.', wp_get_video_extensions() ) . '</code>' ),
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)
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);
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}
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/**
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* Get schema for properties of a widget instance (item).
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*
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* @since 4.8.0
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*
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* @see WP_REST_Controller::get_item_schema()
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* @see WP_REST_Controller::get_additional_fields()
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* @link https://core.trac.wordpress.org/ticket/35574
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*
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* @return array Schema for properties.
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*/
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public function get_instance_schema() {
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$schema = array(
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'preload' => array(
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'type' => 'string',
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'enum' => array( 'none', 'auto', 'metadata' ),
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'default' => 'metadata',
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'description' => __( 'Preload' ),
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'should_preview_update' => false,
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),
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'loop' => array(
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'type' => 'boolean',
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'default' => false,
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'description' => __( 'Loop' ),
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'should_preview_update' => false,
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),
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'content' => array(
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'type' => 'string',
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'default' => '',
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'sanitize_callback' => 'wp_kses_post',
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'description' => __( 'Tracks (subtitles, captions, descriptions, chapters, or metadata)' ),
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'should_preview_update' => false,
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),
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);
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foreach ( wp_get_video_extensions() as $video_extension ) {
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$schema[ $video_extension ] = array(
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'type' => 'string',
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'default' => '',
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'format' => 'uri',
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/* translators: %s: Video extension. */
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'description' => sprintf( __( 'URL to the %s video source file' ), $video_extension ),
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);
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}
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return array_merge( $schema, parent::get_instance_schema() );
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}
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/**
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* Render the media on the frontend.
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*
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* @since 4.8.0
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*
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* @param array $instance Widget instance props.
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*/
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public function render_media( $instance ) {
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$instance = array_merge( wp_list_pluck( $this->get_instance_schema(), 'default' ), $instance );
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$attachment = null;
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if ( $this->is_attachment_with_mime_type( $instance['attachment_id'], $this->widget_options['mime_type'] ) ) {
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$attachment = get_post( $instance['attachment_id'] );
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}
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$src = $instance['url'];
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if ( $attachment ) {
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$src = wp_get_attachment_url( $attachment->ID );
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}
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if ( empty( $src ) ) {
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return;
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}
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$youtube_pattern = '#^https?://(?:www\.)?(?:youtube\.com/watch|youtu\.be/)#';
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$vimeo_pattern = '#^https?://(.+\.)?vimeo\.com/.*#';
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if ( $attachment || preg_match( $youtube_pattern, $src ) || preg_match( $vimeo_pattern, $src ) ) {
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add_filter( 'wp_video_shortcode', array( $this, 'inject_video_max_width_style' ) );
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echo wp_video_shortcode(
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array_merge(
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$instance,
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compact( 'src' )
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),
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$instance['content']
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);
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remove_filter( 'wp_video_shortcode', array( $this, 'inject_video_max_width_style' ) );
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} else {
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echo $this->inject_video_max_width_style( wp_oembed_get( $src ) );
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}
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}
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/**
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* Inject max-width and remove height for videos too constrained to fit inside sidebars on frontend.
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*
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* @since 4.8.0
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*
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* @param string $html Video shortcode HTML output.
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* @return string HTML Output.
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*/
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public function inject_video_max_width_style( $html ) {
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$html = preg_replace( '/\sheight="\d+"/', '', $html );
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$html = preg_replace( '/\swidth="\d+"/', '', $html );
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$html = preg_replace( '/(?<=width:)\s*\d+px(?=;?)/', '100%', $html );
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return $html;
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}
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/**
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* Enqueue preview scripts.
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*
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* These scripts normally are enqueued just-in-time when a video shortcode is used.
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* In the customizer, however, widgets can be dynamically added and rendered via
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* selective refresh, and so it is important to unconditionally enqueue them in
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* case a widget does get added.
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*
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* @since 4.8.0
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*/
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public function enqueue_preview_scripts() {
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/** This filter is documented in wp-includes/media.php */
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if ( 'mediaelement' === apply_filters( 'wp_video_shortcode_library', 'mediaelement' ) ) {
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wp_enqueue_style( 'wp-mediaelement' );
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wp_enqueue_script( 'mediaelement-vimeo' );
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wp_enqueue_script( 'wp-mediaelement' );
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}
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}
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/**
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* Loads the required scripts and styles for the widget control.
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*
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* @since 4.8.0
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*/
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public function enqueue_admin_scripts() {
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parent::enqueue_admin_scripts();
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$handle = 'media-video-widget';
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wp_enqueue_script( $handle );
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$exported_schema = array();
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foreach ( $this->get_instance_schema() as $field => $field_schema ) {
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$exported_schema[ $field ] = wp_array_slice_assoc( $field_schema, array( 'type', 'default', 'enum', 'minimum', 'format', 'media_prop', 'should_preview_update' ) );
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}
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wp_add_inline_script(
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$handle,
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sprintf(
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'wp.mediaWidgets.modelConstructors[ %s ].prototype.schema = %s;',
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wp_json_encode( $this->id_base ),
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wp_json_encode( $exported_schema )
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)
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);
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wp_add_inline_script(
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$handle,
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sprintf(
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'
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wp.mediaWidgets.controlConstructors[ %1$s ].prototype.mime_type = %2$s;
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wp.mediaWidgets.controlConstructors[ %1$s ].prototype.l10n = _.extend( {}, wp.mediaWidgets.controlConstructors[ %1$s ].prototype.l10n, %3$s );
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',
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wp_json_encode( $this->id_base ),
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wp_json_encode( $this->widget_options['mime_type'] ),
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wp_json_encode( $this->l10n )
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)
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);
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}
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/**
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* Render form template scripts.
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*
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* @since 4.8.0
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*/
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public function render_control_template_scripts() {
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parent::render_control_template_scripts()
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?>
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<script type="text/html" id="tmpl-wp-media-widget-video-preview">
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<# if ( data.error && 'missing_attachment' === data.error ) { #>
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<?php
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wp_admin_notice(
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$this->l10n['missing_attachment'],
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array(
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'type' => 'error',
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'additional_classes' => array( 'notice-alt', 'notice-missing-attachment' ),
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)
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);
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?>
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<# } else if ( data.error && 'unsupported_file_type' === data.error ) { #>
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<?php
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wp_admin_notice(
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$this->l10n['unsupported_file_type'],
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array(
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'type' => 'error',
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'additional_classes' => array( 'notice-alt', 'notice-missing-attachment' ),
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)
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);
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?>
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<# } else if ( data.error ) { #>
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<?php
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wp_admin_notice(
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__( 'Unable to preview media due to an unknown error.' ),
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array(
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'type' => 'error',
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'additional_classes' => array( 'notice-alt' ),
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)
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);
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?>
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<# } else if ( data.is_oembed && data.model.poster ) { #>
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<a href="{{ data.model.src }}" target="_blank" class="media-widget-video-link">
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<img src="{{ data.model.poster }}" />
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</a>
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<# } else if ( data.is_oembed ) { #>
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<a href="{{ data.model.src }}" target="_blank" class="media-widget-video-link no-poster">
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<span class="dashicons dashicons-format-video"></span>
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</a>
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<# } else if ( data.model.src ) { #>
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<?php wp_underscore_video_template(); ?>
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<# } #>
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</script>
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<?php
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}
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}
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