MDL-87959 admin: Add marketplace availability in notifications

admin/renderer.php

@@ -331,6 +331,7 @@ class core_admin_renderer extends plugin_renderer_base {
         $output .= $this->forgotten_password_url_warning($invalidforgottenpasswordurl);
         $output .= $this->mnet_deprecation_warning($xmlrpcwarning);
         $output .= $this->moodlenet_removal_warning();
+        $output .= $this->marketplace_integration_notice();
         $output .= $this->userfeedback_encouragement($showfeedbackencouragement);
         $output .= $this->services_and_support_content($showservicesandsupport);
         $output .= $this->campaign_content($showcampaigncontent);
@@ -2359,6 +2360,18 @@ class core_admin_renderer extends plugin_renderer_base {
         return '';
     }
 
+    /**
+     * Display a notice about Moodle Marketplace integration.
+     *
+     * @return string HTML to output.
+     */
+    protected function marketplace_integration_notice(): string {
+        $installer = tool_installaddon_installer::instance();
+        $url = $installer->get_marketplace_url();
+        $notice = get_string('marketplaceavailablenotice', 'admin', $url->out());
+        return $this->warning($notice, 'info');
+    }
+
     /**
      * Renders the theme selector list.
      *

lang/en/admin.php

@@ -867,6 +867,7 @@ $string['manageformatsgotosettings'] = 'Default format can be changed in {$a}';
 $string['managelang'] = 'Manage';
 $string['manageqbehaviours'] = 'Manage question behaviours';
 $string['manageqtypes'] = 'Manage question types';
+$string['marketplaceavailablenotice'] = 'Browse and download plugins on <a href="{$a}" target="_blank" rel="noopener noreferrer">Moodle Marketplace <i class="fa fa-external-link" role="img" aria-label="Opens in new window" title="Opens in new window"></i></a>.';
 $string['maturity50'] = 'Alpha';
 $string['maturity100'] = 'Beta';
 $string['maturity150'] = 'Release candidate';