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Diffstat (limited to 'khtml/css/css_stylesheetimpl.cpp')
| -rw-r--r-- | khtml/css/css_stylesheetimpl.cpp | 436 |
1 files changed, 436 insertions, 0 deletions
diff --git a/khtml/css/css_stylesheetimpl.cpp b/khtml/css/css_stylesheetimpl.cpp new file mode 100644 index 000000000..4743cd2e4 --- /dev/null +++ b/khtml/css/css_stylesheetimpl.cpp @@ -0,0 +1,436 @@ +/** + * This file is part of the DOM implementation for KDE. + * + * Copyright (C) 1999-2003 Lars Knoll (knoll@kde.org) + * (C) 2004 Apple Computer, Inc. + * + * 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. + * + */ + +//#define CSS_STYLESHEET_DEBUG + +#include "dom/dom_string.h" +#include "dom/dom_exception.h" +#include "dom/css_stylesheet.h" +#include "dom/css_rule.h" + +#include "css/css_ruleimpl.h" +#include "css/css_valueimpl.h" +#include "css/cssparser.h" +#include "css/css_stylesheetimpl.h" + +#include "xml/dom_nodeimpl.h" +#include "html/html_documentimpl.h" +#include "misc/loader.h" + +#include <kdebug.h> + +using namespace DOM; +using namespace khtml; +// -------------------------------------------------------------------------------- + +StyleSheetImpl::StyleSheetImpl(StyleSheetImpl *parentSheet, DOMString href) + : StyleListImpl(parentSheet) +{ + m_disabled = false; + m_media = 0; + m_parentNode = 0; + m_strHref = href; +} + + +StyleSheetImpl::StyleSheetImpl(DOM::NodeImpl *parentNode, DOMString href) + : StyleListImpl() +{ + m_parentNode = parentNode; + m_disabled = false; + m_media = 0; + m_strHref = href; +} + +StyleSheetImpl::StyleSheetImpl(StyleBaseImpl *owner, DOMString href) + : StyleListImpl(owner) +{ + m_disabled = false; + m_media = 0; + m_parentNode = 0; + m_strHref = href; +} + +StyleSheetImpl::~StyleSheetImpl() +{ + if(m_media) { + m_media->setParent( 0 ); + m_media->deref(); + } +} + +StyleSheetImpl *StyleSheetImpl::parentStyleSheet() const +{ + if( !m_parent ) return 0; + if( m_parent->isStyleSheet() ) return static_cast<StyleSheetImpl *>(m_parent); + if( m_parent->isRule() ) return m_parent->stylesheet(); + return 0; +} + +void StyleSheetImpl::setMedia( MediaListImpl *media ) +{ + if( media ) + media->ref(); + if( m_media ) + m_media->deref(); + m_media = media; +} + +void StyleSheetImpl::setDisabled( bool disabled ) +{ + bool updateStyle = isCSSStyleSheet() && m_parentNode && disabled != m_disabled; + m_disabled = disabled; + if (updateStyle) + m_parentNode->getDocument()->updateStyleSelector(); +} + +// ----------------------------------------------------------------------- + + +CSSStyleSheetImpl::CSSStyleSheetImpl(CSSStyleSheetImpl *parentSheet, DOMString href) + : StyleSheetImpl(parentSheet, href) +{ + m_lstChildren = new QPtrList<StyleBaseImpl>; + m_doc = parentSheet ? parentSheet->doc() : 0; + m_implicit = false; + m_namespaces = 0; + m_defaultNamespace = anyNamespace; +} + +CSSStyleSheetImpl::CSSStyleSheetImpl(DOM::NodeImpl *parentNode, DOMString href, bool _implicit) + : StyleSheetImpl(parentNode, href) +{ + m_lstChildren = new QPtrList<StyleBaseImpl>; + m_doc = parentNode->getDocument(); + m_implicit = _implicit; + m_namespaces = 0; + m_defaultNamespace = anyNamespace; +} + +CSSStyleSheetImpl::CSSStyleSheetImpl(CSSRuleImpl *ownerRule, DOMString href) + : StyleSheetImpl(ownerRule, href) +{ + m_lstChildren = new QPtrList<StyleBaseImpl>; + m_doc = static_cast<CSSStyleSheetImpl*>(ownerRule->stylesheet())->doc(); + m_implicit = false; + m_namespaces = 0; + m_defaultNamespace = anyNamespace; +} + +CSSStyleSheetImpl::CSSStyleSheetImpl(DOM::NodeImpl *parentNode, CSSStyleSheetImpl *orig) + : StyleSheetImpl(parentNode, orig->m_strHref) +{ + m_lstChildren = new QPtrList<StyleBaseImpl>; + StyleBaseImpl *rule; + for ( rule = orig->m_lstChildren->first(); rule != 0; rule = orig->m_lstChildren->next() ) + { + m_lstChildren->append(rule); + rule->setParent(this); + } + m_doc = parentNode->getDocument(); + m_implicit = false; + m_namespaces = 0; + m_defaultNamespace = anyNamespace; +} + +CSSStyleSheetImpl::CSSStyleSheetImpl(CSSRuleImpl *ownerRule, CSSStyleSheetImpl *orig) + : StyleSheetImpl(ownerRule, orig->m_strHref) +{ + // m_lstChildren is deleted in StyleListImpl + m_lstChildren = new QPtrList<StyleBaseImpl>; + StyleBaseImpl *rule; + for ( rule = orig->m_lstChildren->first(); rule != 0; rule = orig->m_lstChildren->next() ) + { + m_lstChildren->append(rule); + rule->setParent(this); + } + m_doc = static_cast<CSSStyleSheetImpl*>(ownerRule->stylesheet())->doc(); + m_implicit = false; + m_namespaces = 0; + m_defaultNamespace = anyNamespace; +} + +CSSRuleImpl *CSSStyleSheetImpl::ownerRule() const +{ + if( !m_parent ) return 0; + if( m_parent->isRule() ) return static_cast<CSSRuleImpl *>(m_parent); + return 0; +} + +unsigned long CSSStyleSheetImpl::insertRule( const DOMString &rule, unsigned long index, int &exceptioncode ) +{ + exceptioncode = 0; + if(index > m_lstChildren->count()) { + exceptioncode = DOMException::INDEX_SIZE_ERR; + return 0; + } + CSSParser p( strictParsing ); + CSSRuleImpl *r = p.parseRule( this, rule ); + + if(!r) { + exceptioncode = CSSException::SYNTAX_ERR + CSSException::_EXCEPTION_OFFSET; + return 0; + } + // ### + // HIERARCHY_REQUEST_ERR: Raised if the rule cannot be inserted at the specified index e.g. if an + //@import rule is inserted after a standard rule set or other at-rule. + m_lstChildren->insert(index, r); + if (m_doc) + m_doc->updateStyleSelector(true /*shallow*/); + return index; +} + +CSSRuleList CSSStyleSheetImpl::cssRules() +{ + return this; +} + +void CSSStyleSheetImpl::deleteRule( unsigned long index, int &exceptioncode ) +{ + exceptioncode = 0; + StyleBaseImpl *b = m_lstChildren->take(index); + if(!b) { + exceptioncode = DOMException::INDEX_SIZE_ERR; + return; + } + // TreeShared requires delete not deref when removed from tree + b->setParent(0); + if( !b->refCount() ) delete b; + if (m_doc) + m_doc->updateStyleSelector(true /*shallow*/); +} + +void CSSStyleSheetImpl::addNamespace(CSSParser* p, const DOM::DOMString& prefix, const DOM::DOMString& uri) +{ + int exceptioncode = 0; + if (uri.isEmpty()) + return; + + m_namespaces = new CSSNamespace(prefix, uri, m_namespaces); + + if (prefix.isEmpty()) { + Q_ASSERT(m_doc != 0); + + m_defaultNamespace = m_doc->getId(NodeImpl::NamespaceId, uri.implementation(), false, false, &exceptioncode); + } +} + +void CSSStyleSheetImpl::determineNamespace(Q_UINT32& id, const DOM::DOMString& prefix) +{ + // If the stylesheet has no namespaces we can just return. There won't be any need to ever check + // namespace values in selectors. + if (!m_namespaces) + return; + + if (prefix.isEmpty()) + id = makeId(emptyNamespace, localNamePart(id)); // No namespace. If an element/attribute has a namespace, we won't match it. + else if (prefix == "*") + id = makeId(anyNamespace, localNamePart(id)); // We'll match any namespace. + else { + int exceptioncode = 0; + CSSNamespace* ns = m_namespaces->namespaceForPrefix(prefix); + if (ns) { + Q_ASSERT(m_doc != 0); + + // Look up the id for this namespace URI. + Q_UINT16 nsid = m_doc->getId(NodeImpl::NamespaceId, 0, 0, ns->uri().implementation(), false, false, &exceptioncode); + id = makeId(nsid, localNamePart(id)); + } + } +} + +bool CSSStyleSheetImpl::parseString(const DOMString &string, bool strict) +{ +#ifdef CSS_STYLESHEET_DEBUG + kdDebug( 6080 ) << "parsing sheet, len=" << string.length() << ", sheet is " << string.string() << endl; +#endif + + strictParsing = strict; + CSSParser p( strict ); + p.parseSheet( this, string ); + return true; +} + +bool CSSStyleSheetImpl::isLoading() const +{ + StyleBaseImpl *rule; + for ( rule = m_lstChildren->first(); rule != 0; rule = m_lstChildren->next() ) + { + if(rule->isImportRule()) + { + CSSImportRuleImpl *import = static_cast<CSSImportRuleImpl *>(rule); +#ifdef CSS_STYLESHEET_DEBUG + kdDebug( 6080 ) << "found import" << endl; +#endif + if(import->isLoading()) + { +#ifdef CSS_STYLESHEET_DEBUG + kdDebug( 6080 ) << "--> not loaded" << endl; +#endif + return true; + } + } + } + return false; +} + +void CSSStyleSheetImpl::checkLoaded() const +{ + if(isLoading()) return; + if(m_parent) m_parent->checkLoaded(); + if(m_parentNode) m_parentNode->sheetLoaded(); +} + +void CSSStyleSheetImpl::setNonCSSHints() +{ + StyleBaseImpl *rule = m_lstChildren->first(); + while(rule) { + if(rule->isStyleRule()) { + static_cast<CSSStyleRuleImpl *>(rule)->setNonCSSHints(); + } + rule = m_lstChildren->next(); + } +} + + +// --------------------------------------------------------------------------- + + +StyleSheetListImpl::~StyleSheetListImpl() +{ + for ( QPtrListIterator<StyleSheetImpl> it ( styleSheets ); it.current(); ++it ) + it.current()->deref(); +} + +void StyleSheetListImpl::add( StyleSheetImpl* s ) +{ + if ( !styleSheets.containsRef( s ) ) { + s->ref(); + styleSheets.append( s ); + } +} + +void StyleSheetListImpl::remove( StyleSheetImpl* s ) +{ + if ( styleSheets.removeRef( s ) ) + s->deref(); +} + +unsigned long StyleSheetListImpl::length() const +{ + // hack so implicit BODY stylesheets don't get counted here + unsigned long l = 0; + QPtrListIterator<StyleSheetImpl> it(styleSheets); + for (; it.current(); ++it) { + if (!it.current()->isCSSStyleSheet() || !static_cast<CSSStyleSheetImpl*>(it.current())->implicit()) + ++l; + } + return l; +} + +StyleSheetImpl *StyleSheetListImpl::item ( unsigned long index ) +{ + unsigned long l = 0; + QPtrListIterator<StyleSheetImpl> it(styleSheets); + for (; it.current(); ++it) { + if (!it.current()->isCSSStyleSheet() || !static_cast<CSSStyleSheetImpl*>(it.current())->implicit()) { + if (l == index) + return it.current(); + ++l; + } + } + return 0; +} + +// -------------------------------------------------------------------------------------------- + +MediaListImpl::MediaListImpl( CSSStyleSheetImpl *parentSheet, + const DOMString &media ) + : StyleBaseImpl( parentSheet ) +{ + setMediaText( media ); +} + +MediaListImpl::MediaListImpl( CSSRuleImpl *parentRule, const DOMString &media ) + : StyleBaseImpl(parentRule) +{ + setMediaText( media ); +} + +bool MediaListImpl::contains( const DOMString &medium ) const +{ + return m_lstMedia.empty() || m_lstMedia.contains( medium ) || + m_lstMedia.contains( "all" ); +} + +CSSStyleSheetImpl *MediaListImpl::parentStyleSheet() const +{ + if( m_parent->isCSSStyleSheet() ) return static_cast<CSSStyleSheetImpl *>(m_parent); + return 0; +} + +CSSRuleImpl *MediaListImpl::parentRule() const +{ + if( m_parent->isRule() ) return static_cast<CSSRuleImpl *>(m_parent); + return 0; +} + +void MediaListImpl::deleteMedium( const DOMString &oldMedium ) +{ + const QValueList<DOMString>::Iterator itEnd = m_lstMedia.end(); + + for ( QValueList<DOMString>::Iterator it = m_lstMedia.begin(); it != itEnd; ++it ) { + if( (*it) == oldMedium ) { + m_lstMedia.remove( it ); + return; + } + } +} + +DOM::DOMString MediaListImpl::mediaText() const +{ + DOMString text; + const QValueList<DOMString>::ConstIterator itEnd = m_lstMedia.end(); + + for ( QValueList<DOMString>::ConstIterator it = m_lstMedia.begin(); it != itEnd; ++it ) { + text += *it; + text += ", "; + } + return text; +} + +void MediaListImpl::setMediaText(const DOM::DOMString &value) +{ + m_lstMedia.clear(); + const QString val = value.string(); + const QStringList list = QStringList::split( ',', val ); + + const QStringList::ConstIterator itEnd = list.end(); + + for ( QStringList::ConstIterator it = list.begin(); it != itEnd; ++it ) + { + const DOMString medium = (*it).stripWhiteSpace(); + if( !medium.isEmpty() ) + m_lstMedia.append( medium ); + } +} |