GP-814 hide edit button

contract.php

@@ -146,6 +146,12 @@ function contract_civicrm_buildForm($formName, &$form) {
       $membershipId = CRM_Utils_Request::retrieve('id', 'Positive', $form);
       // removed: $formUtils->showPaymentContractDetails();
       $formUtils->addMembershipContractFileDownloadLink($membershipId);
+
+      // GP-814 - hide 'edit' button if 'delete in CiviMember' is not granted
+      if (!CRM_Core_Permission::check('delete in CiviMember')) {
+        CRM_Core_Resources::singleton()->addScriptFile('de.systopia.contract', 'js/membership_view_hide_edit.js');
+      }
+
       break;
 
     // Membership form in add mode

js/membership_view_hide_edit.js

@@ -0,0 +1,19 @@
+/*-------------------------------------------------------------+
+| SYSTOPIA Contract Extension                                  |
+| Copyright (C) 2017 SYSTOPIA                                  |
+| Author: B. Endres (endres -at- systopia.de)                  |
+| http://www.systopia.de/                                      |
++--------------------------------------------------------------*/
+
+// REGEX to identifiy the edit button
+const edit_button_sentinel = /civicrm\/contact\/view\/membership.*action=update/;
+
+/**
+ * remove the "EDIT" button
+ */
+cj(document).bind("ajaxComplete", function() {
+  cj("button.ui-button").filter(function() {
+    var data_identifier = cj(this).attr('data-identifier');
+    return edit_button_sentinel.exec(data_identifier) !== null;
+  }).hide();
+});