From 5aa1e0cb3b4c476e62a5ff0825698ad1cb52190b Mon Sep 17 00:00:00 2001
From: Jakub Onderka <jakub.onderka@gmail.com>
Date: Sun, 21 Nov 2021 18:05:51 +0100
Subject: [PATCH] chg: [internal] Element file cache

---
 app/Controller/AppController.php | 10 ++++++++++
 app/View/AppView.php             | 23 +++++++++++++++++++++++
 2 files changed, 33 insertions(+)
 create mode 100644 app/View/AppView.php

diff --git a/app/Controller/AppController.php b/app/Controller/AppController.php
index 2214574f6..20385a53b 100755
--- a/app/Controller/AppController.php
+++ b/app/Controller/AppController.php
@@ -1413,4 +1413,14 @@ class AppController extends Controller
             return true;
         }
     }
+
+    /**
+     * Override View class
+     * @return AppView
+     */
+    protected function _getViewObject()
+    {
+        App::uses('AppView', 'View');
+        return new AppView($this);
+    }
 }
diff --git a/app/View/AppView.php b/app/View/AppView.php
new file mode 100644
index 000000000..420bc6f53
--- /dev/null
+++ b/app/View/AppView.php
@@ -0,0 +1,23 @@
+<?php
+class AppView extends View
+{
+    /**
+     * Negative results of `file_exists` methods are not cached, so we provide our cache
+     * @var array
+     */
+    private $elementFileCache = [];
+
+    /**
+     * @param string $name
+     * @return false|string
+     */
+    protected function _getElementFileName($name)
+    {
+        if (isset($this->elementFileCache[$name])) {
+            return $this->elementFileCache[$name];
+        }
+        $result = parent::_getElementFileName($name);
+        $this->elementFileCache[$name] = $result;
+        return $result;
+    }
+}