field-signature-html.php

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<?php
/**
 * The default signature field output template.
 *
 * @global \GV\Template_Context $gravityview
 * @since 2.0
 */

if ( ! isset( $gravityview ) || empty( $gravityview->template ) ) {
    gravityview()->log->error( '{file} template loaded without context', array( 'file' => __FILE__ ) );
    return;
}

$field = $gravityview->field->field;
$value = $gravityview->value;

// If empty, there's no signature to show
if ( empty( $value ) ) { return; }

if ( ! class_exists( 'GFSignature' ) ) {
    gravityview()->log->error( '[fields/signature.php] GFSignature not loaded.' );
    return;
}

$image_atts = array(
    'src' => GFSignature::get_instance()->get_signature_url( $value ),
    'width' => \GV\Utils::_GET( 'boxWidth', \GV\Utils::get( $field, 'boxWidth', 300 ) ), // Taken from signature addon signature_input() method
    'height' => '180', // Always 180
    'validate_src' => false, // Don't check if there's a valid image extension
    'alt' => '',
);

echo new GravityView_Image( $image_atts );