From 898951c6b91094fb1dbcddd723ef54aa847b6b66 Mon Sep 17 00:00:00 2001
From: Tim Otten <totten@civicrm.org>
Date: Fri, 19 May 2017 17:24:58 -0700
Subject: [PATCH] CRM-20600 - CRM_Core_Resources - Add hook for settings data

---
 CRM/Core/Resources.php                   |  1 +
 CRM/Utils/Hook.php                       | 13 +++++++++++++
 tests/phpunit/CRM/Core/ResourcesTest.php | 11 +++++++++++
 3 files changed, 25 insertions(+)

diff --git a/CRM/Core/Resources.php b/CRM/Core/Resources.php
index e145938d16..68a2a7fde7 100644
--- a/CRM/Core/Resources.php
+++ b/CRM/Core/Resources.php
@@ -311,6 +311,7 @@ class CRM_Core_Resources {
     foreach ($this->settingsFactories as $callable) {
       $result = $this->mergeSettings($result, $callable());
     }
+    CRM_Utils_Hook::alterResourceSettings($result);
     return $result;
   }
 
diff --git a/CRM/Utils/Hook.php b/CRM/Utils/Hook.php
index 2f263a3b79..9da03b4318 100644
--- a/CRM/Utils/Hook.php
+++ b/CRM/Utils/Hook.php
@@ -2071,6 +2071,19 @@ abstract class CRM_Utils_Hook {
     );
   }
 
+  /**
+   * Modify the CRM_Core_Resources settings data.
+   *
+   * @param array $data
+   * @see CRM_Core_Resources::addSetting
+   */
+  public static function alterResourceSettings(&$data) {
+    $event = \Civi\Core\Event\GenericHookEvent::create(array(
+      'data' => &$data,
+    ));
+    Civi::dispatcher()->dispatch('hook_civicrm_alterResourceSettings', $event);
+  }
+
   /**
    * EXPERIMENTAL: This hook allows one to register additional Angular modules
    *
diff --git a/tests/phpunit/CRM/Core/ResourcesTest.php b/tests/phpunit/CRM/Core/ResourcesTest.php
index 2977a9b289..2e57adc885 100644
--- a/tests/phpunit/CRM/Core/ResourcesTest.php
+++ b/tests/phpunit/CRM/Core/ResourcesTest.php
@@ -165,6 +165,17 @@ class CRM_Core_ResourcesTest extends CiviUnitTestCase {
     $this->assertTrue(strpos($actual, $expected) !== FALSE);
   }
 
+  public function testAddSettingHook() {
+    $test = $this;
+    Civi::dispatcher()->addListener('hook_civicrm_alterResourceSettings', function($event) use ($test) {
+      $test->assertEquals('apple', $event->data['fruit']['mine']);
+      $event->data['fruit']['mine'] = 'banana';
+    });
+    $this->res->addSetting(array('fruit' => array('mine' => 'apple')));
+    $settings = $this->res->getSettings();
+    $this->assertTreeEquals(array('fruit' => array('mine' => 'banana')), $settings);
+  }
+
   public function testAddSettingFactory() {
     $this->res->addSettingsFactory(function () {
       return array('fruit' => array('yours' => 'orange'));
-- 
2.25.1