author | Pat Downey <patd@symbian.org> |
Wed, 01 Sep 2010 12:28:30 +0100 | |
branch | RCL_3 |
changeset 94 | 919f36ff910f |
parent 93 | 79859ed3eea9 |
permissions | -rw-r--r-- |
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/* |
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* (C) 1999-2003 Lars Knoll (knoll@kde.org) |
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* Copyright (C) 2004, 2006, 2007 Apple Inc. All rights reserved. |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Library General Public |
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* License as published by the Free Software Foundation; either |
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* version 2 of the License, or (at your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Library General Public License for more details. |
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* |
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* You should have received a copy of the GNU Library General Public License |
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* along with this library; see the file COPYING.LIB. If not, write to |
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
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* Boston, MA 02110-1301, USA. |
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*/ |
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#include "config.h" |
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#include "CSSStyleSheet.h" |
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#include "CSSImportRule.h" |
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#include "CSSNamespace.h" |
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#include "CSSParser.h" |
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#include "CSSRuleList.h" |
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#include "Document.h" |
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#include "ExceptionCode.h" |
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#include "Node.h" |
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#if PLATFORM(SYMBIAN) |
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#include "oom.h" |
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#endif |
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|
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namespace WebCore { |
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|
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CSSStyleSheet::CSSStyleSheet(CSSStyleSheet* parentSheet, const String& href, const String& charset) |
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: StyleSheet(parentSheet, href) |
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, m_doc(parentSheet ? parentSheet->doc() : 0) |
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, m_namespaces(0) |
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, m_charset(charset) |
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, m_loadCompleted(false) |
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{ |
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} |
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CSSStyleSheet::CSSStyleSheet(Node *parentNode, const String& href, const String& charset) |
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: StyleSheet(parentNode, href) |
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, m_doc(parentNode->document()) |
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, m_namespaces(0) |
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, m_charset(charset) |
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, m_loadCompleted(false) |
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{ |
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} |
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CSSStyleSheet::CSSStyleSheet(CSSRule *ownerRule, const String& href, const String& charset) |
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: StyleSheet(ownerRule, href) |
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, m_doc(0) |
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, m_namespaces(0) |
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, m_charset(charset) |
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, m_loadCompleted(false) |
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{ |
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} |
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CSSStyleSheet::~CSSStyleSheet() |
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{ |
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delete m_namespaces; |
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} |
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|
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CSSRule *CSSStyleSheet::ownerRule() const |
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{ |
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return (parent() && parent()->isRule()) ? static_cast<CSSRule*>(parent()) : 0; |
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} |
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unsigned CSSStyleSheet::insertRule(const String& rule, unsigned index, ExceptionCode& ec) |
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{ |
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ec = 0; |
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if (index > length()) { |
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ec = INDEX_SIZE_ERR; |
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return 0; |
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} |
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CSSParser p(useStrictParsing()); |
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RefPtr<CSSRule> r = p.parseRule(this, rule); |
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|
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if (!r) { |
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ec = SYNTAX_ERR; |
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return 0; |
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} |
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// ### |
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// HIERARCHY_REQUEST_ERR: Raised if the rule cannot be inserted at the specified index e.g. if an |
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//@import rule is inserted after a standard rule set or other at-rule. |
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insert(index, r.release()); |
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styleSheetChanged(); |
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return index; |
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} |
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int CSSStyleSheet::addRule(const String& selector, const String& style, int index, ExceptionCode& ec) |
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{ |
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insertRule(selector + " { " + style + " }", index, ec); |
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// As per Microsoft documentation, always return -1. |
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return -1; |
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} |
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int CSSStyleSheet::addRule(const String& selector, const String& style, ExceptionCode& ec) |
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{ |
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return addRule(selector, style, length(), ec); |
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} |
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CSSRuleList* CSSStyleSheet::cssRules(bool omitCharsetRules) |
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{ |
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return new CSSRuleList(this, omitCharsetRules); |
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} |
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void CSSStyleSheet::deleteRule(unsigned index, ExceptionCode& ec) |
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{ |
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if (index >= length()) { |
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ec = INDEX_SIZE_ERR; |
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return; |
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} |
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ec = 0; |
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remove(index); |
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styleSheetChanged(); |
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} |
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|
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void CSSStyleSheet::addNamespace(CSSParser* p, const AtomicString& prefix, const AtomicString& uri) |
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{ |
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if (uri.isEmpty()) |
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return; |
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134 |
|
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m_namespaces = new CSSNamespace(prefix, uri, m_namespaces); |
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|
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if (prefix.isEmpty()) |
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// Set the default namespace on the parser so that selectors that omit namespace info will |
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// be able to pick it up easily. |
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p->defaultNamespace = uri; |
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} |
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|
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const AtomicString& CSSStyleSheet::determineNamespace(const AtomicString& prefix) |
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{ |
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if (prefix.isEmpty()) |
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return nullAtom; // No namespace. If an element/attribute has a namespace, we won't match it. |
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else if (prefix == starAtom) |
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return starAtom; // We'll match any namespace. |
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else if (m_namespaces) { |
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CSSNamespace* ns = m_namespaces->namespaceForPrefix(prefix); |
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if (ns) |
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return ns->uri(); |
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} |
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return nullAtom; // Assume we wont match any namespaces. |
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} |
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|
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bool CSSStyleSheet::parseString(const String &string, bool strict) |
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{ |
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#if PLATFORM(SYMBIAN) |
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OOM_PRE_CHECK(string.length() * 7, 0, "CSSStyleSheet::parseString" ) |
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#endif |
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|
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setStrictParsing(strict); |
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CSSParser p(strict); |
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p.parseSheet(this, string); |
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#if PLATFORM(SYMBIAN) |
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OOM_POST_CHECK_FAILED(return false;) |
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#endif |
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return true; |
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} |
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|
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bool CSSStyleSheet::isLoading() |
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{ |
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unsigned len = length(); |
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for (unsigned i = 0; i < len; ++i) { |
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StyleBase* rule = item(i); |
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if (rule->isImportRule() && static_cast<CSSImportRule*>(rule)->isLoading()) |
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return true; |
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} |
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return false; |
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181 |
} |
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|
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void CSSStyleSheet::checkLoaded() |
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184 |
{ |
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if (isLoading()) |
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186 |
return; |
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if (parent()) |
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parent()->checkLoaded(); |
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m_loadCompleted = m_parentNode ? m_parentNode->sheetLoaded() : true; |
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190 |
} |
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|
191 |
|
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DocLoader *CSSStyleSheet::docLoader() |
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193 |
{ |
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if (!m_doc) // doc is 0 for the user- and default-sheet! |
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return 0; |
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196 |
|
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// ### remove? (clients just use sheet->doc()->docLoader()) |
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return m_doc->docLoader(); |
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} |
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|
200 |
|
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201 |
void CSSStyleSheet::styleSheetChanged() |
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202 |
{ |
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StyleBase* root = this; |
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204 |
while (StyleBase* parent = root->parent()) |
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root = parent; |
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Document* documentToUpdate = (root && root->isCSSStyleSheet()) ? static_cast<CSSStyleSheet*>(root)->doc() : 0; |
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|
207 |
|
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208 |
/* FIXME: We don't need to do everything updateStyleSelector does, |
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* basically we just need to recreate the document's selector with the |
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* already existing style sheets. |
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211 |
*/ |
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212 |
if (documentToUpdate) |
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documentToUpdate->updateStyleSelector(); |
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214 |
} |
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|
215 |
|
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216 |
} |