gecko/content/base/public/Element.h

100 lines
3.8 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: sw=2 ts=2 et :
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2009
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Boris Zbarsky <bzbarsky@mit.edu> (Original Author)
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef mozilla_dom_Element_h__
#define mozilla_dom_Element_h__
#include "nsIContent.h"
// Element-specific flags
enum {
// Set if the element has a pending style change.
ELEMENT_HAS_PENDING_RESTYLE = (1 << NODE_TYPE_SPECIFIC_BITS_OFFSET),
// Set if the element is a potential restyle root (that is, has a style
// change pending _and_ that style change will attempt to restyle
// descendants).
ELEMENT_IS_POTENTIAL_RESTYLE_ROOT =
(1 << (NODE_TYPE_SPECIFIC_BITS_OFFSET + 1)),
// Set if the element has a pending animation style change.
ELEMENT_HAS_PENDING_ANIMATION_RESTYLE =
(1 << (NODE_TYPE_SPECIFIC_BITS_OFFSET + 2)),
// Set if the element is a potential animation restyle root (that is,
// has an animation style change pending _and_ that style change
// will attempt to restyle descendants).
ELEMENT_IS_POTENTIAL_ANIMATION_RESTYLE_ROOT =
(1 << (NODE_TYPE_SPECIFIC_BITS_OFFSET + 3)),
// All of those bits together, for convenience.
ELEMENT_ALL_RESTYLE_FLAGS = ELEMENT_HAS_PENDING_RESTYLE |
ELEMENT_IS_POTENTIAL_RESTYLE_ROOT |
ELEMENT_HAS_PENDING_ANIMATION_RESTYLE |
ELEMENT_IS_POTENTIAL_ANIMATION_RESTYLE_ROOT,
// Just the HAS_PENDING bits, for convenience
ELEMENT_PENDING_RESTYLE_FLAGS = ELEMENT_HAS_PENDING_RESTYLE |
ELEMENT_HAS_PENDING_ANIMATION_RESTYLE,
// Remaining bits are for subclasses
ELEMENT_TYPE_SPECIFIC_BITS_OFFSET = NODE_TYPE_SPECIFIC_BITS_OFFSET + 4
};
namespace mozilla {
namespace dom {
class Element : public nsIContent
{
public:
#ifdef MOZILLA_INTERNAL_API
Element(already_AddRefed<nsINodeInfo> aNodeInfo) : nsIContent(aNodeInfo) {}
#endif // MOZILLA_INTERNAL_API
};
} // namespace dom
} // namespace mozilla
inline mozilla::dom::Element* nsINode::AsElement() {
NS_ASSERTION(IsElement(), "Not an element?");
return static_cast<mozilla::dom::Element*>(this);
}
#endif // mozilla_dom_Element_h__