WP_Widget_Media_Gallery::render_control_template_scripts() WordPress Method

	public function render_control_template_scripts() {
		parent::render_control_template_scripts();
		?>
		<script type="text/html" id="tmpl-wp-media-widget-gallery-preview">
			<#
			var ids = _.filter( data.ids, function( id ) {
				return ( id in data.attachments );
			} );
			#>
			<# if ( ids.length ) { #>
				<ul class="gallery media-widget-gallery-preview" role="list">
					<# _.each( ids, function( id, index ) { #>
						<# var attachment = data.attachments[ id ]; #>
						<# if ( index < 6 ) { #>
							<li class="gallery-item">
								<div class="gallery-icon">
									<img alt="{{ attachment.alt }}"
										<# if ( index === 5 && data.ids.length > 6 ) { #> aria-hidden="true" <# } #>
										<# if ( attachment.sizes.thumbnail ) { #>
											src="{{ attachment.sizes.thumbnail.url }}" width="{{ attachment.sizes.thumbnail.width }}" height="{{ attachment.sizes.thumbnail.height }}"
										<# } else { #>
											src="{{ attachment.url }}"
										<# } #>
										<# if ( ! attachment.alt && attachment.filename ) { #>
											aria-label="
											<?php
											echo esc_attr(
												sprintf(
													/* translators: %s: The image file name. */
													__( 'The current image has no alternative text. The file name is: %s' ),
													'{{ attachment.filename }}'
												)
											);
											?>
											"
										<# } #>
									/>
									<# if ( index === 5 && data.ids.length > 6 ) { #>
									<div class="gallery-icon-placeholder">
										<p class="gallery-icon-placeholder-text" aria-label="
										<?php
											printf(
												/* translators: %s: The amount of additional, not visible images in the gallery widget preview. */
												__( 'Additional images added to this gallery: %s' ),
												'{{ data.ids.length - 5 }}'
											);
										?>
										">+{{ data.ids.length - 5 }}</p>
									</div>
									<# } #>
								</div>
							</li>
						<# } #>
					<# } ); #>
				</ul>
			<# } else { #>
				<div class="attachment-media-view">
					<button type="button" class="placeholder button-add-media"><?php echo esc_html( $this->l10n['add_media'] ); ?></button>
				</div>
			<# } #>
		</script>
		<?php
	}