Initial commit

node_modules/dom-helpers/query/contains.js

@@ -0,0 +1,34 @@
+'use strict';
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+
+var _inDOM = require('../util/inDOM');
+
+var _inDOM2 = _interopRequireDefault(_inDOM);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+exports.default = function () {
+  // HTML DOM and SVG DOM may have different support levels,
+  // so we need to check on context instead of a document root element.
+  return _inDOM2.default ? function (context, node) {
+    if (context.contains) {
+      return context.contains(node);
+    } else if (context.compareDocumentPosition) {
+      return context === node || !!(context.compareDocumentPosition(node) & 16);
+    } else {
+      return fallback(context, node);
+    }
+  } : fallback;
+}();
+
+function fallback(context, node) {
+  if (node) do {
+    if (node === context) return true;
+  } while (node = node.parentNode);
+
+  return false;
+}
+module.exports = exports['default'];