From dcc351e61de6bb04ef103ba168938ac78ca9fd08 Mon Sep 17 00:00:00 2001
From: Huong Nguyen <huongnv13@gmail.com>
Date: Mon, 14 Aug 2023 16:01:40 +0700
Subject: [PATCH] MDL-53368 recaptcha: Implement compact display mode

---
 lib/recaptchalib_v2.php | 8 ++++++--
 lib/upgrade.txt         | 2 ++
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/lib/recaptchalib_v2.php b/lib/recaptchalib_v2.php
index 3e48e01c6ea..87f7063f34d 100644
--- a/lib/recaptchalib_v2.php
+++ b/lib/recaptchalib_v2.php
@@ -104,9 +104,10 @@ function recaptcha_lang($lang = null) {
  * @param string $apiurl URL for reCAPTCHA API
  * @param string $pubkey The public key for reCAPTCHA
  * @param string $lang Language to use. If not provided, get current language.
+ * @param bool $compactmode If true, use the compact widget.
  * @return string - The HTML to be embedded in the user's form.
  */
-function recaptcha_get_challenge_html($apiurl, $pubkey, $lang = null) {
+function recaptcha_get_challenge_html($apiurl, $pubkey, $lang = null, bool $compactmode = false) {
     global $CFG, $PAGE;
 
     // To use reCAPTCHA you must have an API key.
@@ -127,7 +128,10 @@ function recaptcha_get_challenge_html($apiurl, $pubkey, $lang = null) {
     $apicode .= "</script>\n";
 
     $return = html_writer::script($jscode, '');
-    $return .= html_writer::div('', 'recaptcha_element', array('id' => 'recaptcha_element'));
+    $return .= html_writer::div('', 'recaptcha_element', [
+        'id' => 'recaptcha_element',
+        'data-size' => ($compactmode ? 'compact' : 'normal'),
+    ]);
     $return .= $apicode;
 
     return $return;
diff --git a/lib/upgrade.txt b/lib/upgrade.txt
index 00b0dd1f3a4..a0eb3c45d45 100644
--- a/lib/upgrade.txt
+++ b/lib/upgrade.txt
@@ -90,6 +90,8 @@ being forced open in all behat tests.
 * New method login_captcha_enabled() is created to check whether the login captcha is enabled or not.
 * New method validate_login_captcha() is created to validate the login captcha.
 * A new parameter $loginrecaptcha has been added to the authenticate_user_login() to check whether the login captcha is needed to verify or not. The default value is false.
+* A new parameter $compactmode has been added to the recaptcha_get_challenge_html() to define whether the reCaptcha element should be displayed in the compact mode or not.
+  Default value is false.
 
 === 4.2 ===