1 files changed, 83 insertions, 0 deletions
diff --git a/js/src/dom/selector-engine.js b/js/src/dom/selector-engine.js
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+/**
+ * --------------------------------------------------------------------------
+ * Bootstrap (v5.2.3): dom/selector-engine.js
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
+ * --------------------------------------------------------------------------
+ */
+
+import { isDisabled, isVisible } from '../util/index'
+
+/**
+ * Constants
+ */
+
+const SelectorEngine = {
+  find(selector, element = document.documentElement) {
+    return [].concat(...Element.prototype.querySelectorAll.call(element, selector))
+  },
+
+  findOne(selector, element = document.documentElement) {
+    return Element.prototype.querySelector.call(element, selector)
+  },
+
+  children(element, selector) {
+    return [].concat(...element.children).filter(child => child.matches(selector))
+  },
+
+  parents(element, selector) {
+    const parents = []
+    let ancestor = element.parentNode.closest(selector)
+
+    while (ancestor) {
+      parents.push(ancestor)
+      ancestor = ancestor.parentNode.closest(selector)
+    }
+
+    return parents
+  },
+
+  prev(element, selector) {
+    let previous = element.previousElementSibling
+
+    while (previous) {
+      if (previous.matches(selector)) {
+        return [previous]
+      }
+
+      previous = previous.previousElementSibling
+    }
+
+    return []
+  },
+  // TODO: this is now unused; remove later along with prev()
+  next(element, selector) {
+    let next = element.nextElementSibling
+
+    while (next) {
+      if (next.matches(selector)) {
+        return [next]
+      }
+
+      next = next.nextElementSibling
+    }
+
+    return []
+  },
+
+  focusableChildren(element) {
+    const focusables = [
+      'a',
+      'button',
+      'input',
+      'textarea',
+      'select',
+      'details',
+      '[tabindex]',
+      '[contenteditable="true"]'
+    ].map(selector => `${selector}:not([tabindex^="-"])`).join(',')
+
+    return this.find(focusables, element).filter(el => !isDisabled(el) && isVisible(el))
+  }
+}
+
+export default SelectorEngine