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node_modules/zone.js/lib/browser/register-element.ts

@@ -0,0 +1,37 @@
+import {_redefineProperty} from './define-property';
+import {isBrowser} from './utils';
+
+export function registerElementPatch(_global: any) {
+  if (!isBrowser || !('registerElement' in (<any>_global).document)) {
+    return;
+  }
+
+  var _registerElement = (<any>document).registerElement;
+  var callbacks = [
+    'createdCallback',
+    'attachedCallback',
+    'detachedCallback',
+    'attributeChangedCallback'
+  ];
+
+  (<any>document).registerElement = function (name, opts) {
+    if (opts && opts.prototype) {
+      callbacks.forEach(function (callback) {
+        var source = 'Document.registerElement::' + callback;
+        if (opts.prototype.hasOwnProperty(callback)) {
+          var descriptor = Object.getOwnPropertyDescriptor(opts.prototype, callback);
+          if (descriptor && descriptor.value) {
+            descriptor.value = Zone.current.wrap(descriptor.value, source);
+            _redefineProperty(opts.prototype, callback, descriptor);
+          } else {
+            opts.prototype[callback] = Zone.current.wrap(opts.prototype[callback], source);
+          }
+        } else if (opts.prototype[callback]) {
+          opts.prototype[callback] = Zone.current.wrap(opts.prototype[callback], source);
+        }
+      });
+    }
+
+    return _registerElement.apply(document, [name, opts]);
+  };
+}