"Reverting 22561"

tools/dom/templates/html/impl/impl_HTMLTemplateElement.darttemplate

-// Copyright (c) 2012, 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.
-
-// WARNING: Do not edit - generated code.
-
-part of $LIBRARYNAME;
-
-@Experimental
-$(ANNOTATIONS)class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC {
-$!MEMBERS
-
-  // For real TemplateElement use the actual DOM .content field instead of
-  // our polyfilled expando.
-  @Experimental
-  DocumentFragment get content => $dom_content;
-
-  static StreamController<DocumentFragment> _instanceCreated;
-
-  /**
-   * *Warning*: This is an implementation helper for Model-Driven Views and
-   * should not be used in your code.
-   *
-   * This event is fired whenever a template is instantiated via
-   * [createInstance].
-   */
-  // TODO(rafaelw): This is a hack, and is neccesary for the polyfill
-  // because custom elements are not upgraded during clone()
-  @Experimental
-  static Stream<DocumentFragment> get instanceCreated {
-    if (_instanceCreated == null) {
-      _instanceCreated = new StreamController<DocumentFragment>();
-    }
-    return _instanceCreated.stream;
-  }
-
-  /**
-   * Ensures proper API and content model for template elements.
-   *
-   * [instanceRef] can be used to set the [Element.ref] property of [template],
-   * and use the ref's content will be used as source when createInstance() is
-   * invoked.
-   *
-   * Returns true if this template was just decorated, or false if it was
-   * already decorated.
-   */
-  @Experimental
-  static bool decorate(Element template, [Element instanceRef]) {
-    // == true check because it starts as a null field.
-    if (template._templateIsDecorated == true) return false;
-
-    template._templateIsDecorated = true;
-
-    _injectStylesheet();
-
-    // Create content
-    if (template is! TemplateElement) {
-      var doc = _getTemplateContentsOwner(template.document);
-      template._templateContent = doc.createDocumentFragment();
-    }
-
-    if (instanceRef != null) {
-      template._templateInstanceRef = instanceRef;
-      return true; // content is empty.
-    }
-
-    if (template is TemplateElement) {
-      _bootstrapTemplatesRecursivelyFrom(template.content);
-    } else {
-      _liftNonNativeTemplateChildrenIntoContent(template);
-    }
-
-    return true;
-  }
-
-  /**
-   * This used to decorate recursively all templates from a given node.
-   *
-   * By default [decorate] will be called on templates lazily when certain
-   * properties such as [model] are accessed, but it can be run eagerly to
-   * decorate an entire tree recursively.
-   */
-  // TODO(rafaelw): Review whether this is the right public API.
-  @Experimental
-  static void bootstrap(Node content) {
-    _bootstrapTemplatesRecursivelyFrom(content);
-  }
-
-  static bool _initStyles;
-
-  static void _injectStylesheet() {
-    if (_initStyles == true) return;
-    _initStyles = true;
-
-    var style = new StyleElement();
-    style.text = r'''
-template,
-thead[template],
-tbody[template],
-tfoot[template],
-th[template],
-tr[template],
-td[template],
-caption[template],
-colgroup[template],
-col[template],
-option[template] {
-  display: none;
-}''';
-    document.head.append(style);
-  }
-
-  /**
-   * A mapping of names to Custom Syntax objects. See [CustomBindingSyntax] for
-   * more information.
-   */
-  @Experimental
-  static Map<String, CustomBindingSyntax> syntax = {};
-}