Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

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 );
+    }
+}