Revert "Dart2js support for custom element lifecycle events"

tests/html/custom/entered_left_view_test.dart

-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-library entered_left_view_test;
-
-import 'dart:async';
-import 'dart:html';
-import 'dart:js' as js;
-import 'package:unittest/html_individual_config.dart';
-import 'package:unittest/unittest.dart';
-import '../utils.dart';
-
-var invocations = [];
-class Foo extends HtmlElement {
-  factory Foo() => null;
-
-  void created() {
-    invocations.add('created');
-  }
-
-  void enteredView() {
-    invocations.add('entered');
-  }
-
-  void leftView() {
-    invocations.add('left');
-  }
-
-  void attributeChanged() {
-    invocations.add('attribute changed');
-  }
-}
-
-// Pump custom events polyfill events.
-void customElementsTakeRecords() {
-  if (js.context.hasProperty('CustomElements')) {
-    js.context['CustomElements'].callMethod('takeRecords');
-  }
-}
-
-main() {
-  useHtmlIndividualConfiguration();
-
-  // Adapted from Blink's
-  // fast/dom/custom/entered-left-document.html test.
-
-  var docA = document;
-  var docB = document.implementation.createHtmlDocument('');
-
-  var nullSanitizer = new NullTreeSanitizer();
-
-  var registeredTypes = false;
-  setUp(() {
-    return loadPolyfills().then((_) {
-      if (registeredTypes) {
-        return;
-      }
-      registeredTypes = true;
-      document.register('x-a', Foo);
-    });
-  });
-
-  group('Standard events', () {
-    var a = new Element.tag('x-a');
-    setUp(() {
-      invocations = [];
-    });
-
-    test('Created', () {
-      a = new Element.tag('x-a');
-      expect(invocations, ['created']);
-    });
-
-    test('entered', () {
-      document.body.append(a);
-      customElementsTakeRecords();
-      expect(invocations, ['entered']);
-    });
-
-    test('left', () {
-      a.remove();
-      customElementsTakeRecords();
-      expect(invocations, ['left']);
-    });
-
-    var div = new DivElement();
-    test('nesting does not trigger entered', () {
-      div.append(a);
-      customElementsTakeRecords();
-      expect(invocations, []);
-    });
-
-    test('nested entering triggers entered', () {
-      document.body.append(div);
-      customElementsTakeRecords();
-      expect(invocations, ['entered']);
-    });
-
-    test('nested leaving triggers left', () {
-      div.remove();
-      customElementsTakeRecords();
-      expect(invocations, ['left']);
-    });
-  });
-
-  group('viewless_document', () {
-    var a = docB.createElement('x-a');
-    setUp(() {
-      invocations = [];
-    });
-
-    test('Created, owned by a document without a view', () {
-      a = docB.createElement('x-a');
-      expect(a.document, docB,
-          reason:'new instance should be owned by the document the definition '
-          'was registered with');
-      expect(invocations, ['created'],
-          reason: 'calling the constructor should invoke the created callback');
-    });
-
-    test('Entered document without a view', () {
-      docB.body.append(a);
-      expect(invocations, [],
-          reason: 'entered callback should not be invoked when entering a '
-          'document without a view');
-    });
-
-    /*
-    test('Attribute changed in document without a view', () {
-      a.setAttribute('data-foo', 'bar');
-      expect(invocations, ['attribute changed'],
-          reason: 'changing an attribute should invoke the callback, even in a '
-          'document without a view');
-    });
-    */
-    test('Entered document with a view', () {
-      document.body.append(a);
-      customElementsTakeRecords();
-      expect(invocations, ['entered'],
-          reason: 'entered callback should be invoked when entering a document '
-          'with a view');
-    });
-
-    test('Left document with a view', () {
-      a.remove();
-      customElementsTakeRecords();
-      expect(invocations, ['left'],
-          reason: 'left callback should be invoked when leaving a document '
-          'with a view');
-    });
-
-    test('Created in a document without a view', () {
-      docB.body.setInnerHtml('<x-a></x-a>', treeSanitizer: nullSanitizer);
-      Platform.upgradeCustomElements(docB.body);
-
-      expect(invocations, ['created'],
-          reason: 'only created callback should be invoked when parsing a '
-          'custom element in a document without a view');
-    });
-  });
-
-  group('shadow_dom', () {
-    var div;
-    var s;
-    setUp(() {
-      invocations = [];
-      div = new DivElement();
-      s = div.createShadowRoot();
-    });
-
-    tearDown(() {
-      customElementsTakeRecords();
-    });
-
-    test('Created in Shadow DOM that is not in a document', () {
-      s.setInnerHtml('<x-a></x-a>', treeSanitizer: nullSanitizer);
-      Platform.upgradeCustomElements(s);
-
-      expect(invocations, ['created'],
-          reason: 'the entered callback should not be invoked when entering a '
-          'Shadow DOM subtree not in the document');
-    });
-
-    test('Leaves Shadow DOM that is not in a document', () {
-      s.innerHtml = '';
-      expect(invocations, [],
-          reason: 'the left callback should not be invoked when leaving a '
-          'Shadow DOM subtree not in the document');
-    });
-
-    test('Enters a document with a view as a constituent of Shadow DOM', () {
-      s.setInnerHtml('<x-a></x-a>', treeSanitizer: nullSanitizer);
-      Platform.upgradeCustomElements(s);
-
-      document.body.append(div);
-      customElementsTakeRecords();
-      expect(invocations, ['created', 'entered'],
-            reason: 'the entered callback should be invoked when inserted into '
-            'a document with a view as part of Shadow DOM');
-
-      div.remove();
-      customElementsTakeRecords();
-
-      expect(invocations, ['created', 'entered', 'left'],
-          reason: 'the left callback should be invoked when removed from a '
-          'document with a view as part of Shadow DOM');
-    });
-  });
-
-
-  group('disconnected_subtree', () {
-    var div = new DivElement();
-
-    setUp(() {
-      invocations = [];
-    });
-
-    test('Enters a disconnected subtree of DOM', () {
-      div.setInnerHtml('<x-a></x-a>', treeSanitizer: nullSanitizer);
-      Platform.upgradeCustomElements(div);
-
-      expect(invocations, ['created'],
-          reason: 'the entered callback should not be invoked when inserted '
-          'into a disconnected subtree');
-    });
-
-    test('Leaves a disconnected subtree of DOM', () {
-      div.innerHtml = '';
-      expect(invocations, [],
-          reason: 'the left callback should not be invoked when removed from a '
-          'disconnected subtree');
-    });
-
-    test('Enters a document with a view as a constituent of a subtree', () {
-      div.setInnerHtml('<x-a></x-a>', treeSanitizer: nullSanitizer);
-      Platform.upgradeCustomElements(div);
-      invocations = [];
-      document.body.append(div);
-      customElementsTakeRecords();
-      expect(invocations, ['entered'],
-          reason: 'the entered callback should be invoked when inserted into a '
-          'document with a view as part of a subtree');
-    });
-  });
-}