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+/**
+ * This file is part of the DOM implementation for KDE.
+ *
+ * (C) 1999-2003 Lars Knoll (knoll@kde.org)
+ * (C) 2002-2003 Dirk Mueller (mueller@kde.org)
+ * Copyright (C) 2002 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.
+ */
+#include "dom/css_rule.h"
+#include "dom/css_stylesheet.h"
+#include "dom/dom_exception.h"
+#include "dom/dom_string.h"
+
+#include "css/css_stylesheetimpl.h"
+#include "css/css_valueimpl.h"
+#include "css/cssparser.h"
+#include "css/css_ruleimpl.h"
+
+#include "misc/loader.h"
+#include "misc/htmltags.h"
+#include "misc/htmlattrs.h"
+#include "xml/dom_docimpl.h"
+
+using namespace DOM;
+
+#include <kdebug.h>
+
+CSSStyleSheetImpl *CSSRuleImpl::parentStyleSheet() const
+{
+ return ( m_parent && m_parent->isCSSStyleSheet() ) ?
+ static_cast<CSSStyleSheetImpl *>(m_parent) : 0;
+}
+
+CSSRuleImpl *CSSRuleImpl::parentRule() const
+{
+ return ( m_parent && m_parent->isRule() ) ?
+ static_cast<CSSRuleImpl *>(m_parent) : 0;
+}
+
+DOM::DOMString CSSRuleImpl::cssText() const
+{
+ // ###
+ return DOMString();
+}
+
+void CSSRuleImpl::setCssText(DOM::DOMString /*str*/)
+{
+ // ###
+}
+
+// ---------------------------------------------------------------------------
+
+CSSFontFaceRuleImpl::CSSFontFaceRuleImpl(StyleBaseImpl *parent)
+ : CSSRuleImpl(parent)
+{
+ m_type = CSSRule::FONT_FACE_RULE;
+ m_style = 0;
+}
+
+CSSFontFaceRuleImpl::~CSSFontFaceRuleImpl()
+{
+ if(m_style) m_style->deref();
+}
+
+// --------------------------------------------------------------------------
+
+CSSImportRuleImpl::CSSImportRuleImpl( StyleBaseImpl *parent,
+ const DOM::DOMString &href,
+ MediaListImpl *media )
+ : CSSRuleImpl(parent)
+{
+ m_type = CSSRule::IMPORT_RULE;
+
+ m_lstMedia = media;
+ if ( !m_lstMedia )
+ m_lstMedia = new MediaListImpl( this, DOMString() );
+ m_lstMedia->setParent( this );
+ m_lstMedia->ref();
+
+ m_strHref = href;
+ m_styleSheet = 0;
+
+ m_cachedSheet = 0;
+
+ init();
+}
+CSSImportRuleImpl::CSSImportRuleImpl( StyleBaseImpl *parent,
+ const DOM::DOMString &href,
+ const DOM::DOMString &media )
+ : CSSRuleImpl(parent)
+{
+ m_type = CSSRule::IMPORT_RULE;
+
+ m_lstMedia = new MediaListImpl( this, media );
+ m_lstMedia->ref();
+
+ m_strHref = href;
+ m_styleSheet = 0;
+
+ m_cachedSheet = 0;
+
+ init();
+}
+
+CSSImportRuleImpl::~CSSImportRuleImpl()
+{
+ if( m_lstMedia ) {
+ m_lstMedia->setParent( 0 );
+ m_lstMedia->deref();
+ }
+ if(m_styleSheet) {
+ m_styleSheet->setParent(0);
+ m_styleSheet->deref();
+ }
+
+ if(m_cachedSheet) m_cachedSheet->deref(this);
+}
+
+void CSSImportRuleImpl::setStyleSheet(const DOM::DOMString &url, const DOM::DOMString &sheet, const DOM::DOMString &charset)
+{
+ if ( m_styleSheet ) {
+ m_styleSheet->setParent(0);
+ m_styleSheet->deref();
+ }
+ m_styleSheet = new CSSStyleSheetImpl(this, url);
+ m_styleSheet->setCharset(charset);
+ m_styleSheet->ref();
+
+ CSSStyleSheetImpl *parent = parentStyleSheet();
+ m_styleSheet->parseString( sheet, parent ? parent->useStrictParsing() : true );
+ m_loading = false;
+ m_done = true;
+
+ checkLoaded();
+}
+
+void CSSImportRuleImpl::error(int /*err*/, const QString &/*text*/)
+{
+ if ( m_styleSheet ) {
+ m_styleSheet->setParent(0);
+ m_styleSheet->deref();
+ }
+ m_styleSheet = 0;
+
+ m_loading = false;
+ m_done = true;
+
+ checkLoaded();
+}
+
+bool CSSImportRuleImpl::isLoading()
+{
+ return ( m_loading || (m_styleSheet && m_styleSheet->isLoading()) );
+}
+
+void CSSImportRuleImpl::init()
+{
+ m_loading = 0;
+ m_done = false;
+ khtml::DocLoader *docLoader = 0;
+ StyleBaseImpl *root = this;
+ StyleBaseImpl *parent;
+ while ( ( parent = root->parent()) )
+ root = parent;
+ if (root->isCSSStyleSheet())
+ docLoader = static_cast<CSSStyleSheetImpl*>(root)->docLoader();
+
+ DOMString absHref = m_strHref;
+ CSSStyleSheetImpl *parentSheet = parentStyleSheet();
+ if (!parentSheet->href().isNull()) {
+ // use parent styleheet's URL as the base URL
+ absHref = KURL(KURL( parentSheet->href().string() ),m_strHref.string()).url();
+ }
+/*
+ else {
+ // use documents's URL as the base URL
+ DocumentImpl *doc = static_cast<CSSStyleSheetImpl*>(root)->doc();
+ absHref = KURL(doc->URL(),m_strHref.string()).url();
+ }
+*/
+ // Check for a cycle in our import chain. If we encounter a stylesheet
+ // in our parent chain with the same URL, then just bail.
+ for ( parent = static_cast<StyleBaseImpl*>( this )->parent();
+ parent;
+ parent = parent->parent() )
+ if ( absHref == parent->baseURL().url() )
+ return;
+
+ m_cachedSheet = docLoader->requestStyleSheet(absHref, parentStyleSheet()->charset().string());
+
+ if (m_cachedSheet)
+ {
+ m_cachedSheet->ref(this);
+
+ // If the imported sheet is in the cache, then setStyleSheet gets called,
+ // and the sheet even gets parsed (via parseString). In this case we have
+ // loaded (even if our subresources haven't), so if we have stylesheet after
+ // checking the cache, then we've clearly loaded. -dwh
+ // This can also happen when error() is called from within ref(). In either case,
+ // m_done is set to true.
+ if (!m_done)
+ m_loading = true;
+ }
+}
+
+// --------------------------------------------------------------------------
+CSSMediaRuleImpl::CSSMediaRuleImpl( StyleBaseImpl *parent, MediaListImpl *mediaList, CSSRuleListImpl *ruleList )
+ : CSSRuleImpl( parent )
+{
+ m_type = CSSRule::MEDIA_RULE;
+ m_lstMedia = mediaList;
+ m_lstMedia->ref();
+ m_lstCSSRules = ruleList;
+ m_lstCSSRules->ref();
+}
+
+CSSMediaRuleImpl::CSSMediaRuleImpl(StyleBaseImpl *parent)
+ : CSSRuleImpl( parent )
+{
+ m_type = CSSRule::MEDIA_RULE;
+ m_lstMedia = 0;
+ m_lstCSSRules = new CSSRuleListImpl();
+ m_lstCSSRules->ref();
+}
+
+CSSMediaRuleImpl::CSSMediaRuleImpl( StyleBaseImpl *parent, const DOM::DOMString &media )
+: CSSRuleImpl( parent )
+{
+ m_type = CSSRule::MEDIA_RULE;
+ m_lstMedia = new MediaListImpl( this, media );
+ m_lstMedia->ref();
+ m_lstCSSRules = new CSSRuleListImpl();
+ m_lstCSSRules->ref();
+}
+
+CSSMediaRuleImpl::~CSSMediaRuleImpl()
+{
+ if( m_lstMedia ) {
+ m_lstMedia->setParent( 0 );
+ m_lstMedia->deref();
+ }
+ for ( unsigned int i = 0; i < m_lstCSSRules->length(); ++i )
+ m_lstCSSRules->item( i )->setParent( 0 );
+ m_lstCSSRules->deref();
+}
+
+unsigned long CSSMediaRuleImpl::append( CSSRuleImpl *rule )
+{
+ return rule ? m_lstCSSRules->insertRule( rule, m_lstCSSRules->length() ) : 0;
+}
+
+unsigned long CSSMediaRuleImpl::insertRule( const DOMString &rule,
+ unsigned long index )
+{
+ CSSParser p( strictParsing );
+ CSSRuleImpl *newRule = p.parseRule( parentStyleSheet(), rule );
+
+ return newRule ? m_lstCSSRules->insertRule( newRule, index ) : 0;
+}
+
+CSSRuleListImpl::~CSSRuleListImpl()
+{
+ CSSRuleImpl* rule;
+ while ( !m_lstCSSRules.isEmpty() && ( rule = m_lstCSSRules.take( 0 ) ) )
+ rule->deref();
+}
+
+// ---------------------------------------------------------------------------
+
+CSSPageRuleImpl::CSSPageRuleImpl(StyleBaseImpl *parent)
+ : CSSRuleImpl(parent)
+{
+ m_type = CSSRule::PAGE_RULE;
+ m_style = 0;
+}
+
+CSSPageRuleImpl::~CSSPageRuleImpl()
+{
+ if(m_style) m_style->deref();
+}
+
+DOM::DOMString CSSPageRuleImpl::selectorText() const
+{
+ // ###
+ return DOMString();
+}
+
+void CSSPageRuleImpl::setSelectorText(DOM::DOMString /*str*/)
+{
+ // ###
+}
+
+// --------------------------------------------------------------------------
+
+CSSStyleRuleImpl::CSSStyleRuleImpl(StyleBaseImpl *parent)
+ : CSSRuleImpl(parent)
+{
+ m_type = CSSRule::STYLE_RULE;
+ m_style = 0;
+ m_selector = 0;
+}
+
+CSSStyleRuleImpl::~CSSStyleRuleImpl()
+{
+ if(m_style) {
+ m_style->setParent( 0 );
+ m_style->deref();
+ }
+ delete m_selector;
+}
+
+DOM::DOMString CSSStyleRuleImpl::selectorText() const
+{
+ if (m_selector) {
+ DOMString str;
+ for (CSSSelector *s = m_selector->first(); s; s = m_selector->next()) {
+ if (s != m_selector->getFirst())
+ str += ", ";
+ str += s->selectorText();
+ }
+ return str;
+ }
+ return DOMString();
+}
+
+void CSSStyleRuleImpl::setSelectorText(DOM::DOMString /*str*/)
+{
+ // ###
+}
+
+bool CSSStyleRuleImpl::parseString( const DOMString &/*string*/, bool )
+{
+ // ###
+ return false;
+}
+
+void CSSStyleRuleImpl::setDeclaration( CSSStyleDeclarationImpl *style)
+{
+ if ( m_style != style ) {
+ if(m_style) m_style->deref();
+ m_style = style;
+ if(m_style) m_style->ref();
+ }
+}
+
+void CSSStyleRuleImpl::setNonCSSHints()
+{
+ CSSSelector *s = m_selector->first();
+ while ( s ) {
+ s->nonCSSHint = true;
+ s = m_selector->next();
+ }
+}
+
+void CSSRuleListImpl::deleteRule ( unsigned long index )
+{
+ CSSRuleImpl *rule = m_lstCSSRules.take( index );
+ if( rule )
+ rule->deref();
+ else {
+ // ### Throw INDEX_SIZE_ERR exception here (TODO)
+ }
+}
+
+unsigned long CSSRuleListImpl::insertRule( CSSRuleImpl *rule,
+ unsigned long index )
+{
+ if( rule && m_lstCSSRules.insert( index, rule ) )
+ {
+ rule->ref();
+ return index;
+ }
+
+ // ### Should throw INDEX_SIZE_ERR exception instead! (TODO)
+ return 0;
+}
+