diff options
Diffstat (limited to 'WebCore/css/CSSSelector.h')
| -rw-r--r-- | WebCore/css/CSSSelector.h | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/WebCore/css/CSSSelector.h b/WebCore/css/CSSSelector.h new file mode 100644 index 0000000..32d7978 --- /dev/null +++ b/WebCore/css/CSSSelector.h @@ -0,0 +1,200 @@ +/* + * This file is part of the CSS implementation for KDE. + * + * Copyright (C) 1999-2003 Lars Knoll (knoll@kde.org) + * 1999 Waldo Bastian (bastian@kde.org) + * Copyright (C) 2004, 2006, 2007, 2008 Apple Inc. All rights reserved. + * + * 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. + */ + +#ifndef CSSSelector_h +#define CSSSelector_h + +#include "QualifiedName.h" + +namespace WebCore { + + // this class represents a selector for a StyleRule + class CSSSelector { + public: + CSSSelector() + : m_tagHistory(0) + , m_simpleSelector(0) + , m_nextSelector(0) + , m_argument(nullAtom) + , m_attr(anyQName()) + , m_tag(anyQName()) + , m_relation(Descendant) + , m_match(None) + , m_pseudoType(PseudoNotParsed) + { + } + + CSSSelector(const QualifiedName& qName) + : m_tagHistory(0) + , m_simpleSelector(0) + , m_nextSelector(0) + , m_argument(nullAtom) + , m_attr(anyQName()) + , m_tag(qName) + , m_relation(Descendant) + , m_match(None) + , m_pseudoType(PseudoNotParsed) + { + } + + ~CSSSelector() + { + delete m_tagHistory; + delete m_simpleSelector; + delete m_nextSelector; + } + + void append(CSSSelector* n) + { + CSSSelector* end = this; + while (end->m_nextSelector) + end = end->m_nextSelector; + end->m_nextSelector = n; + } + + CSSSelector* next() { return m_nextSelector; } + + /** + * Print debug output for this selector + */ + void print(); + + /** + * Re-create selector text from selector's data + */ + String selectorText() const; + + // checks if the 2 selectors (including sub selectors) agree. + bool operator==(const CSSSelector&); + + // tag == -1 means apply to all elements (Selector = *) + + unsigned specificity(); + + /* how the attribute value has to match.... Default is Exact */ + enum Match { + None = 0, + Id, + Class, + Exact, + Set, + List, + Hyphen, + PseudoClass, + PseudoElement, + Contain, // css3: E[foo*="bar"] + Begin, // css3: E[foo^="bar"] + End // css3: E[foo$="bar"] + }; + + enum Relation { + Descendant = 0, + Child, + DirectAdjacent, + IndirectAdjacent, + SubSelector + }; + + enum PseudoType { + PseudoNotParsed = 0, + PseudoUnknown, + PseudoEmpty, + PseudoFirstChild, + PseudoFirstOfType, + PseudoLastChild, + PseudoLastOfType, + PseudoOnlyChild, + PseudoOnlyOfType, + PseudoFirstLine, + PseudoFirstLetter, + PseudoNthChild, + PseudoNthOfType, + PseudoNthLastChild, + PseudoNthLastOfType, + PseudoLink, + PseudoVisited, + PseudoAnyLink, + PseudoAutofill, + PseudoHover, + PseudoDrag, + PseudoFocus, + PseudoActive, + PseudoChecked, + PseudoEnabled, + PseudoDisabled, + PseudoIndeterminate, + PseudoTarget, + PseudoBefore, + PseudoAfter, + PseudoLang, + PseudoNot, + PseudoRoot, + PseudoSelection, + PseudoFileUploadButton, + PseudoSliderThumb, + PseudoSearchCancelButton, + PseudoSearchDecoration, + PseudoSearchResultsDecoration, + PseudoSearchResultsButton, + PseudoMediaControlsPanel, + PseudoMediaControlsMuteButton, + PseudoMediaControlsPlayButton, + PseudoMediaControlsTimeDisplay, + PseudoMediaControlsTimeline, + PseudoMediaControlsSeekBackButton, + PseudoMediaControlsSeekForwardButton, + PseudoMediaControlsFullscreenButton + }; + + PseudoType pseudoType() const + { + if (m_pseudoType == PseudoNotParsed) + extractPseudoType(); + return static_cast<PseudoType>(m_pseudoType); + } + + bool hasTag() const { return m_tag != anyQName(); } + bool hasAttribute() const { return m_attr != anyQName(); } + + Relation relation() const { return static_cast<Relation>(m_relation); } + + mutable AtomicString m_value; + CSSSelector* m_tagHistory; + CSSSelector* m_simpleSelector; // Used for :not. + CSSSelector* m_nextSelector; // used for ,-chained selectors + AtomicString m_argument; // Used for :contains, :lang and :nth-* + + QualifiedName m_attr; + QualifiedName m_tag; + + unsigned m_relation : 3; // enum Relation + mutable unsigned m_match : 4; // enum Match + mutable unsigned m_pseudoType : 8; // PseudoType + + private: + void extractPseudoType() const; + }; + +} // namespace WebCore + +#endif // CSSSelector_h |