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node_modules/@fluentui/dom-utilities/lib/elementContains.js

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+import { getParent } from './getParent';
+/**
+ * Determines whether or not a parent element contains a given child element.
+ * If `allowVirtualParents` is true, this method may return `true` if the child
+ * has the parent in its virtual element hierarchy.
+ *
+ * @public
+ */
+export function elementContains(parent, child, allowVirtualParents) {
+    if (allowVirtualParents === void 0) { allowVirtualParents = true; }
+    var isContained = false;
+    if (parent && child) {
+        if (allowVirtualParents) {
+            if (parent === child) {
+                isContained = true;
+            }
+            else {
+                isContained = false;
+                while (child) {
+                    var nextParent = getParent(child);
+                    if (nextParent === parent) {
+                        isContained = true;
+                        break;
+                    }
+                    child = nextParent;
+                }
+            }
+        }
+        else if (parent.contains) {
+            isContained = parent.contains(child);
+        }
+    }
+    return isContained;
+}
+//# sourceMappingURL=elementContains.js.map