Remove stale files from lib/html/src.

lib/html/src/DocumentFragmentWrappingImplementation.dart

-// Copyright (c) 2011, 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.
-
-class FilteredElementList implements ElementList {
-  final Node _node;
-  final NodeList _childNodes;
-
-  FilteredElementList(Node node): _childNodes = node.nodes, _node = node;
-
-  // We can't memoize this, since it's possible that children will be messed
-  // with externally to this class.
-  //
-  // TODO(nweiz): Do we really need to copy the list to make the types work out?
-  List<Element> get _filtered() =>
-    new List.from(_childNodes.filter((n) => n is Element));
-
-  // Don't use _filtered.first so we can short-circuit once we find an element.
-  Element get first() {
-    for (var node in _childNodes) {
-      if (node is Element) {
-        return node;
-      }
-    }
-    return null;
-  }
-
-  void forEach(void f(Element element)) {
-    _filtered.forEach(f);
-  }
-
-  void operator []=(int index, Element value) {
-    this[index].replaceWith(value);
-  }
-
-  void set length(int newLength) {
-    var len = this.length;
-    if (newLength >= len) {
-      return;
-    } else if (newLength < 0) {
-      throw const IllegalArgumentException("Invalid list length");
-    }
-
-    removeRange(newLength - 1, len - newLength);
-  }
-
-  void add(Element value) {
-    _childNodes.add(value);
-  }
-
-  void addAll(Collection<Element> collection) {
-    collection.forEach(add);
-  }
-
-  void addLast(Element value) {
-    add(value);
-  }
-
-  void sort(int compare(Element a, Element b)) {
-    throw const UnsupportedOperationException('TODO(jacobr): should we impl?');
-  }
-
-  void setRange(int start, int length, List from, [int startFrom = 0]) {
-    throw const NotImplementedException();
-  }
-
-  void removeRange(int start, int length) {
-    _filtered.getRange(start, length).forEach((el) => el.remove());
-  }
-
-  void insertRange(int start, int length, [initialValue = null]) {
-    throw const NotImplementedException();
-  }
-
-  void clear() {
-    // Currently, ElementList#clear clears even non-element nodes, so we follow
-    // that behavior.
-    _childNodes.clear();
-  }
-
-  Element removeLast() {
-    var last = this.last();
-    if (last != null) {
-      last.remove();
-    }
-    return last;
-  }
-
-  Collection map(f(Element element)) => _filtered.map(f);
-  Collection<Element> filter(bool f(Element element)) => _filtered.filter(f);
-  bool every(bool f(Element element)) => _filtered.every(f);
-  bool some(bool f(Element element)) => _filtered.some(f);
-  bool isEmpty() => _filtered.isEmpty();
-  int get length() => _filtered.length;
-  Element operator [](int index) => _filtered[index];
-  Iterator<Element> iterator() => _filtered.iterator();
-  List<Element> getRange(int start, int length) =>
-    _filtered.getRange(start, length);
-  int indexOf(Element element, [int start = 0]) =>
-    _filtered.indexOf(element, start);
-
-  int lastIndexOf(Element element, [int start = null]) {
-    if (start === null) start = length - 1;
-    return _filtered.lastIndexOf(element, start);
-  }
-
-  Element last() => _filtered.last();
-}
-
-class EmptyStyleDeclaration extends CSSStyleDeclarationWrappingImplementation {
-  // This can't call super(), since that's a factory constructor
-  EmptyStyleDeclaration()
-    : super._wrap(dom.document.createElement('div').style);
-
-  void set cssText(String value) {
-    throw new UnsupportedOperationException(
-        "Can't modify a frozen style declaration.");
-  }
-
-  String removeProperty(String propertyName) {
-    throw new UnsupportedOperationException(
-        "Can't modify a frozen style declaration.");
-  }
-
-  void setProperty(String propertyName, String value, [String priority]) {
-    throw new UnsupportedOperationException(
-        "Can't modify a frozen style declaration.");
-  }
-}
-
-Future<CSSStyleDeclaration> _emptyStyleFuture() {
-  return _createMeasurementFuture(() => new EmptyStyleDeclaration(),
-                                  new Completer<CSSStyleDeclaration>());
-}
-
-class EmptyElementRect implements ElementRect {
-  final ClientRect client = const SimpleClientRect(0, 0, 0, 0);
-  final ClientRect offset = const SimpleClientRect(0, 0, 0, 0);
-  final ClientRect scroll = const SimpleClientRect(0, 0, 0, 0);
-  final ClientRect bounding = const SimpleClientRect(0, 0, 0, 0);
-  final List<ClientRect> clientRects = const <ClientRect>[];
-
-  const EmptyElementRect();
-}
-
-class DocumentFragmentWrappingImplementation extends NodeWrappingImplementation implements DocumentFragment {
-  ElementList _elements;
-
-  DocumentFragmentWrappingImplementation._wrap(ptr) : super._wrap(ptr) {}
-
-  /** @domName Document.createDocumentFragment */
-  factory DocumentFragmentWrappingImplementation() {
-    return new DocumentFragmentWrappingImplementation._wrap(
-            dom.document.createDocumentFragment());
-  }
-
-  factory DocumentFragmentWrappingImplementation.html(String html) {
-    var fragment = new DocumentFragment();
-    fragment.innerHTML = html;
-    return fragment;
-  }
-
-  factory DocumentFragmentWrappingImplementation.xml(String xml) {
-    var fragment = new DocumentFragment();
-    var e = new XMLElement.tag("xml");
-    e.innerHTML = xml;
-
-    // Copy list first since we don't want liveness during iteration.
-    List nodes = new List.from(e.nodes);
-    fragment.nodes.addAll(nodes);
-    return fragment;
-  }
-
-  factory DocumentFragmentWrappingImplementation.svg(String svg) {
-    var fragment = new DocumentFragment();
-    var e = new SVGSVGElement();
-    e.innerHTML = svg;
-
-    // Copy list first since we don't want liveness during iteration.
-    List nodes = new List.from(e.nodes);
-    fragment.nodes.addAll(nodes);
-    return fragment;
-  }
-
-  ElementList get elements() {
-    if (_elements == null) {
-      _elements = new FilteredElementList(this);
-    }
-    return _elements;
-  }
-
-  void set elements(Collection<Element> value) {
-    // Copy list first since we don't want liveness during iteration.
-    List copy = new List.from(value);
-    final elements = this.elements;
-    elements.clear();
-    elements.addAll(copy);
-  }
-
-  String get innerHTML() {
-    var e = new Element.tag("div");
-    e.nodes.add(this.clone(true));
-    return e.innerHTML;
-  }
-
-  String get outerHTML() => innerHTML;
-
-  // TODO(nweiz): Do we want to support some variant of innerHTML for XML and/or
-  // SVG strings?
-  void set innerHTML(String value) {
-    this.nodes.clear();
-
-    var e = new Element.tag("div");
-    e.innerHTML = value;
-
-    // Copy list first since we don't want liveness during iteration.
-    List nodes = new List.from(e.nodes);
-    this.nodes.addAll(nodes);
-  }
-
-  Node _insertAdjacentNode(String where, Node node) {
-    switch (where.toLowerCase()) {
-      case "beforebegin": return null;
-      case "afterend": return null;
-      case "afterbegin":
-        this.insertBefore(node, nodes.first);
-        return node;
-      case "beforeend":
-        this.nodes.add(node);
-        return node;
-      default:
-        throw new IllegalArgumentException("Invalid position ${where}");
-    }
-  }
-
-  Element insertAdjacentElement([String where = null, Element element = null])
-    => this._insertAdjacentNode(where, element);
-
-  void insertAdjacentText([String where = null, String text = null]) {
-    this._insertAdjacentNode(where, new Text(text));
-  }
-
-  void insertAdjacentHTML(
-      [String position_OR_where = null, String text = null]) {
-    this._insertAdjacentNode(
-      position_OR_where, new DocumentFragment.html(text));
-  }
-
-  ElementEvents get on() {
-    if (_on === null) {
-      _on = new ElementEventsImplementation._wrap(_ptr);
-    }
-    return _on;
-  }
-
-  Future<ElementRect> get rect() {
-    return _createMeasurementFuture(() => const EmptyElementRect(),
-                                    new Completer<ElementRect>());
-  }
-
-  Element query(String selectors) =>
-    LevelDom.wrapElement(_ptr.querySelector(selectors));
-
-  ElementList queryAll(String selectors) =>
-    LevelDom.wrapElementList(_ptr.querySelectorAll(selectors));
-
-  // If we can come up with a semi-reasonable default value for an Element
-  // getter, we'll use it. In general, these return the same values as an
-  // element that has no parent.
-  String get contentEditable() => "false";
-  bool get isContentEditable() => false;
-  bool get draggable() => false;
-  bool get hidden() => false;
-  bool get spellcheck() => false;
-  int get tabIndex() => -1;
-  String get id() => "";
-  String get title() => "";
-  String get tagName() => "";
-  String get webkitdropzone() => "";
-  Element get firstElementChild() => elements.first();
-  Element get lastElementChild() => elements.last();
-  Element get nextElementSibling() => null;
-  Element get previousElementSibling() => null;
-  Element get offsetParent() => null;
-  Element get parent() => null;
-  Map<String, String> get attributes() => const {};
-  CSSClassSet get classes() => null;
-  Map<String, String> get dataAttributes() => const {};
-  CSSStyleDeclaration get style() => new EmptyStyleDeclaration();
-  Future<CSSStyleDeclaration> get computedStyle() =>
-      _emptyStyleFuture();
-  Future<CSSStyleDeclaration> getComputedStyle(String pseudoElement) =>
-      _emptyStyleFuture();
-  bool matchesSelector([String selectors]) => false;
-
-  // Imperative Element methods are made into no-ops, as they are on parentless
-  // elements.
-  void blur() {}
-  void focus() {}
-  void scrollByLines([int lines]) {}
-  void scrollByPages([int pages]) {}
-  void scrollIntoView([bool centerIfNeeded]) {}
-
-  // Setters throw errors rather than being no-ops because we aren't going to
-  // retain the values that were set, and erroring out seems clearer.
-  void set attributes(Map<String, String> value) {
-    throw new UnsupportedOperationException(
-      "Attributes can't be set for document fragments.");
-  }
-
-  void set classes(Collection<String> value) {
-    throw new UnsupportedOperationException(
-      "Classes can't be set for document fragments.");
-  }
-
-  void set dataAttributes(Map<String, String> value) {
-    throw new UnsupportedOperationException(
-      "Data attributes can't be set for document fragments.");
-  }
-
-  void set contentEditable(String value) {
-    throw new UnsupportedOperationException(
-      "Content editable can't be set for document fragments.");
-  }
-
-  String get dir() {
-    throw new UnsupportedOperationException(
-      "Document fragments don't support text direction.");
-  }
-
-  void set dir(String value) {
-    throw new UnsupportedOperationException(
-      "Document fragments don't support text direction.");
-  }
-
-  void set draggable(bool value) {
-    throw new UnsupportedOperationException(
-      "Draggable can't be set for document fragments.");
-  }
-
-  void set hidden(bool value) {
-    throw new UnsupportedOperationException(
-      "Hidden can't be set for document fragments.");
-  }
-
-  void set id(String value) {
-    throw new UnsupportedOperationException(
-      "ID can't be set for document fragments.");
-  }
-
-  String get lang() {
-    throw new UnsupportedOperationException(
-      "Document fragments don't support language.");
-  }
-
-  void set lang(String value) {
-    throw new UnsupportedOperationException(
-      "Document fragments don't support language.");
-  }
-
-  void set scrollLeft(int value) {
-    throw new UnsupportedOperationException(
-      "Document fragments don't support scrolling.");
-  }
-
-  void set scrollTop(int value) {
-    throw new UnsupportedOperationException(
-      "Document fragments don't support scrolling.");
-  }
-
-  void set spellcheck(bool value) {
-     throw new UnsupportedOperationException(
-      "Spellcheck can't be set for document fragments.");
-  }
-
-  void set tabIndex(int value) {
-    throw new UnsupportedOperationException(
-      "Tab index can't be set for document fragments.");
-  }
-
-  void set title(String value) {
-    throw new UnsupportedOperationException(
-      "Title can't be set for document fragments.");
-  }
-
-  void set webkitdropzone(String value) {
-    throw new UnsupportedOperationException(
-      "WebKit drop zone can't be set for document fragments.");
-  }
-
-  DocumentFragment clone(bool deep) => super.clone(deep);
-}