Create gpfup-display-images-in-entry-details.php

Author: claygriffiths

gp-file-upload-pro/gpfup-display-images-in-entry-details.php

@@ -0,0 +1,77 @@
+<?php
+/**
+ * Gravity Perks // File Upload Pro // Show Images in Entry Details
+ * https://gravitywiz.com/documentation/gravity-forms-file-upload-pro/
+ *
+ * Instead of an unordered list with links to the files, display the images. Non-images will still
+ * be displayed as a text link.
+ *
+ * By default, the images will be hyperlinks linking to the original image.
+ *
+ * Instructions: https://gravitywiz.com/documentation/how-do-i-install-a-snippet/
+ */
+add_filter( 'gform_entry_field_value', function ( $display_value, $field, $entry, $form ) {
+	if ( ! rgar( $field, 'multipleFiles' ) || ! rgar( $field, 'gpfupEnable' ) ) {
+		return $display_value;
+	}
+
+	/**
+	 * Set to false if the images should not be links.
+	 */
+	$link_images = true;
+
+	/**
+	 * @var string Value from the entry. Is JSON if files are provided.
+	 */
+	$entry_value = rgar( $entry, $field->id );
+
+	if ( ! $entry_value ) {
+		return $entry_value;
+	}
+
+	$file_urls = json_decode( $entry_value, true );
+	$html      = '';
+
+	foreach ( $file_urls as $file_index => $file_url ) {
+		/* Skip file if the file is not an image supported by mPDF */
+		$extension = pathinfo( $file_url, PATHINFO_EXTENSION );
+		$file_name = pathinfo( $file_url, PATHINFO_FILENAME );
+
+		if ( ! in_array( strtolower( $extension ), array(
+			'gif',
+			'png',
+			'jpg',
+			'wmf',
+			'svg',
+			'bmp',
+		), true ) ) {
+			// Link directly to other file types (e.g. PDF) without further processing
+			$html .= '<ul><li><a href="' . esc_url( $file_url ) . '">' . $file_name . '</a>' . "</li></ul>\n";
+			continue;
+		}
+
+		if ( $link_images ) {
+			$html .= '<a href="' . esc_url( $file_url ) . '"><img src="' . $file_url . '" style="max-width: 100%"  /></a>' . "\n";
+		} else {
+			$html .= '<img src="' . $file_url . '" style="max-width: 100%" />' . "\n";
+		}
+
+		if ( count( $file_urls ) > 1 && $file_index + 1 < count( $file_urls ) ) {
+			$html .= "<br />\n";
+		}
+	}
+
+	/**
+	 * Strip all HTML except for img, a, ul, li, and br tags.
+	 */
+	return wp_kses( $html, array(
+		'img' => array(
+			'src'   => array(),
+			'style' => array(),
+		),
+		'a'   => array( 'href' => array() ),
+		'br'  => array(),
+		'ul'  => array(),
+		'li'  => array(),
+	) );
+}, 10, 4 );