From 0b16c8c6d9a9690d537bd08eac8a8292ebf938cd Mon Sep 17 00:00:00 2001
From: Johann-S <johann.servoire@gmail.com>
Date: Mon, 21 Aug 2017 09:11:37 +0200
Subject: alert without jquery

---
 js/src/dom/selectorEngine.js | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 js/src/dom/selectorEngine.js

(limited to 'js/src/dom/selectorEngine.js')

diff --git a/js/src/dom/selectorEngine.js b/js/src/dom/selectorEngine.js
new file mode 100644
index 000000000..f6bcf6da2
--- /dev/null
+++ b/js/src/dom/selectorEngine.js
@@ -0,0 +1,42 @@
+/**
+ * --------------------------------------------------------------------------
+ * Bootstrap (v4.0.0-beta): dom/selectorEngine.js
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * --------------------------------------------------------------------------
+ */
+
+const SelectorEngine = {
+  matches: Element.prototype.msMatchesSelector || Element.prototype.webkitMatchesSelector,
+
+  find(selector) {
+    if (typeof selector !== 'string') {
+      return null
+    }
+
+    let selectorType = 'querySelectorAll'
+    if (selector.indexOf('#') === 0) {
+      selectorType = 'getElementById'
+      selector = selector.substr(1, selector.length)
+    }
+    return document[selectorType](selector)
+  },
+
+  closest(element, selector) {
+    let ancestor = element
+    if (!document.documentElement.contains(element)) {
+      return null
+    }
+
+    do {
+      if (SelectorEngine.matches.call(ancestor, selector)) {
+        return ancestor
+      }
+
+      ancestor = ancestor.parentElement
+    } while (ancestor !== null)
+
+    return null
+  }
+}
+
+export default SelectorEngine
-- 
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