/*
 * Copyright (C) 2006, 2007, 2009 Apple Inc. All rights reserved.
 * Copyright (C) 2006 Samuel Weinig <sam.weinig@gmail.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public License
 * along with this library; see the file COPYING.LIB.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 */

// See
// https://docs.google.com/document/d/1VnvAqeWFG9JFZfgG5evBqrLGDZYRE5w6G5jEDORekPY
// for details.
enum NativeScrollBehavior { "disable-native-scroll", "perform-before-native-scroll", "perform-after-native-scroll" };

// https://dom.spec.whatwg.org/#interface-element

interface Element : Node {
    readonly attribute DOMString? namespaceURI;
    readonly attribute DOMString? prefix;
    readonly attribute DOMString localName;
    readonly attribute DOMString tagName;

    [Reflect] attribute DOMString id;
    [Reflect=class] attribute DOMString className;
    [SameObject, PerWorldBindings] readonly attribute DOMTokenList classList;

    [MeasureAs=HasAttributes] boolean hasAttributes();
    [SameObject, PerWorldBindings, ImplementedAs=attributesForBindings] readonly attribute NamedNodeMap attributes;
    DOMString? getAttribute(DOMString name);
    DOMString? getAttributeNS(DOMString? namespaceURI, DOMString localName);
    [RaisesException, CustomElementCallbacks] void setAttribute(DOMString name, DOMString value);
    [RaisesException, CustomElementCallbacks] void setAttributeNS(DOMString? namespaceURI, DOMString name, DOMString value);
    [CustomElementCallbacks] void removeAttribute(DOMString name);
    [CustomElementCallbacks] void removeAttributeNS(DOMString? namespaceURI, DOMString localName);
    boolean hasAttribute(DOMString name);
    boolean hasAttributeNS(DOMString? namespaceURI, DOMString localName);

    [MeasureAs=ElementGetAttributeNode] Attr? getAttributeNode(DOMString name);
    [MeasureAs=ElementGetAttributeNodeNS] Attr? getAttributeNodeNS(DOMString? namespaceURI, DOMString localName);
    [RaisesException, CustomElementCallbacks, MeasureAs=ElementSetAttributeNode] Attr? setAttributeNode(Attr attr);
    [RaisesException, CustomElementCallbacks, MeasureAs=ElementSetAttributeNodeNS] Attr? setAttributeNodeNS(Attr attr);
    [RaisesException, CustomElementCallbacks, MeasureAs=ElementRemoveAttributeNode] Attr removeAttributeNode(Attr attr);

    [RaisesException] Element? closest(DOMString selectors);
    [RaisesException] boolean matches(DOMString selectors);

    HTMLCollection getElementsByTagName(DOMString localName);
    HTMLCollection getElementsByTagNameNS(DOMString? namespaceURI, DOMString localName);
    HTMLCollection getElementsByClassName(DOMString classNames);

    // DOM Parsing and Serialization
    // https://dvcs.w3.org/hg/innerhtml/raw-file/tip/index.html#extensions-to-the-element-interface
    [TreatNullAs=NullString, CustomElementCallbacks, RaisesException=Setter] attribute DOMString innerHTML;
    [TreatNullAs=NullString, CustomElementCallbacks, RaisesException=Setter] attribute DOMString outerHTML;
    [CustomElementCallbacks, RaisesException, MeasureAs=InsertAdjacentHTML] void insertAdjacentHTML(DOMString position, DOMString text);

    // Shadow DOM
    // http://w3c.github.io/webcomponents/spec/shadow/#extensions-to-element-interface
    [RaisesException, CallWith=ScriptState, MeasureAs=ElementCreateShadowRoot] ShadowRoot createShadowRoot();
    [RuntimeEnabled=ShadowDOMV1, RaisesException, CallWith=ScriptState, MeasureAs=ElementAttachShadow] ShadowRoot attachShadow(ShadowRootInit shadowRootInitDict);
    NodeList getDestinationInsertionPoints();
    [PerWorldBindings, ImplementedAs=openShadowRoot] readonly attribute ShadowRoot? shadowRoot;
    [RuntimeEnabled=ShadowDOMV1, Reflect] attribute DOMString slot;

    // Pointer Lock
    // https://dvcs.w3.org/hg/pointerlock/raw-file/default/index.html#extensions-to-the-element-interface
    [MeasureAs=ElementRequestPointerLock] void requestPointerLock();

    // CSSOM View Module
    // http://dev.w3.org/csswg/cssom-view/#extension-to-the-element-interface
    // FIXME: getClientRect() and getBoundingClientRect() should
    // return DOMRectList and DOMRect respectively.
    ClientRectList getClientRects();
    ClientRect getBoundingClientRect();
    // FIXME: scrollIntoView() should have a ScrollIntoViewOptions dictionary argument.
    void scrollIntoView(optional boolean alignWithTop);
    [RuntimeEnabled=CSSOMSmoothScroll, ImplementedAs=scrollTo] void scroll(optional ScrollToOptions options);
    [RuntimeEnabled=CSSOMSmoothScroll, ImplementedAs=scrollTo] void scroll(unrestricted double x, unrestricted double y);
    [RuntimeEnabled=CSSOMSmoothScroll] void scrollTo(optional ScrollToOptions options);
    [RuntimeEnabled=CSSOMSmoothScroll] void scrollTo(unrestricted double x, unrestricted double y);
    [RuntimeEnabled=CSSOMSmoothScroll] void scrollBy(optional ScrollToOptions options);
    [RuntimeEnabled=CSSOMSmoothScroll] void scrollBy(unrestricted double x, unrestricted double y);
    attribute unrestricted double scrollTop;
    attribute unrestricted double scrollLeft;
    readonly attribute long scrollWidth;
    readonly attribute long scrollHeight;
    readonly attribute long clientTop;
    readonly attribute long clientLeft;
    readonly attribute long clientWidth;
    readonly attribute long clientHeight;

    // Scroll Customization API. See crbug.com/410974 for details.
    [RuntimeEnabled=ScrollCustomization] void setApplyScroll(ScrollStateCallback scrollStateCallback, NativeScrollBehavior nativeScrollBehavior);
    [RuntimeEnabled=ScrollCustomization] void setDistributeScroll(ScrollStateCallback scrollStateCallback, NativeScrollBehavior nativeScrollBehavior);

    // Non-standard APIs
    // https://www.w3.org/Bugs/Public/show_bug.cgi?id=19962
    [RaisesException, CustomElementCallbacks, MeasureAs=InsertAdjacentElement] Element insertAdjacentElement(DOMString where, Element element);
    [RaisesException, MeasureAs=InsertAdjacentText] void insertAdjacentText(DOMString where, DOMString text);
    [MeasureAs=ElementScrollIntoViewIfNeeded] void scrollIntoViewIfNeeded(optional boolean centerIfNeeded);
    [RaisesException, ImplementedAs=matches, MeasureAs=ElementPrefixedMatchesSelector] boolean webkitMatchesSelector(DOMString selectors);

    // Experimental accessibility API
    [RuntimeEnabled=ComputedAccessibilityInfo] readonly attribute DOMString? computedRole;
    [RuntimeEnabled=ComputedAccessibilityInfo] readonly attribute DOMString? computedName;

    // Event handler attributes
    attribute EventHandler onbeforecopy;
    attribute EventHandler onbeforecut;
    attribute EventHandler onbeforepaste;
    attribute EventHandler oncopy;
    attribute EventHandler oncut;
    attribute EventHandler onpaste;
    attribute EventHandler onsearch;
    attribute EventHandler onselectstart;
    attribute EventHandler onwheel;
};

Element implements ParentNode;
Element implements ChildNode;
Element implements NonDocumentTypeChildNode;