let only triggers part

htdocs/core/class/html.form.class.php

@@ -6484,6 +6484,46 @@ class Form
 		return 'ErrorBadValueForParameterRenderMode';	// Should not happened
 	}
 
+	/**
+	 * showContactRoles on view and edit mode
+	 *
+	 * @param string $htmlname Html component name and id
+	 * @param Contact $contact Contact Obejct
+	 * @param string $rendermode view, edit
+	 * @param array $selected $key=>$val $val is selected Roles for input mode
+	 * @return string   String with contacts roles
+	 */
+	public function showRoles($htmlname = '', Contact $contact, $rendermode = 'view', $selected = array())
+	{
+		if ($rendermode === 'view') {
+			$toprint = array();
+			foreach ($contact->roles as $key => $val) {
+				$toprint[] = '<li class="select2-search-choice-dolibarr noborderoncategories" style="background: #aaa;">' . $val['label'] . '</li>';
+			}
+			return '<div class="select2-container-multi-dolibarr" style="width: 90%;" id="'.$htmlname.'"><ul class="select2-choices-dolibarr">' . implode(' ', $toprint) . '</ul></div>';
+		}
+
+		if ($rendermode === 'edit')
+		{
+			$contactType=$contact->listeTypeContacts('external', '', 1);
+
+			if (count($selected)>0) {
+				$newselected=array();
+				foreach($selected as $key=>$val) {
+					if (is_array($val) && array_key_exists('id', $val) && in_array($val['id'], array_keys($contactType))) {
+						$newselected[]=$val['id'];
+					} else {
+						break;
+					}
+				}
+				if (count($newselected)>0) $selected=$newselected;
+			}
+			return $this->multiselectarray($htmlname, $contactType, $selected);
+		}
+
+		return 'ErrorBadValueForParameterRenderMode';	// Should not happened
+	}
+
 
 	/**
 	 *  Show linked object block.