/* | |
* (C) 1999-2003 Lars Knoll (knoll@kde.org) | |
* (C) 2002-2003 Dirk Mueller (mueller@kde.org) | |
* Copyright (C) 2002, 2005, 2006, 2008, 2009 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. | |
*/ | |
#include "config.h" | |
#include "CSSImportRule.h" | |
#include "CachedCSSStyleSheet.h" | |
#include "DocLoader.h" | |
#include "Document.h" | |
#include "SecurityOrigin.h" | |
#include "Settings.h" | |
#include <wtf/StdLibExtras.h> | |
namespace WebCore { | |
CSSImportRule::CSSImportRule(CSSStyleSheet* parent, const String& href, PassRefPtr<MediaList> media) | |
: CSSRule(parent) | |
, m_strHref(href) | |
, m_lstMedia(media) | |
, m_cachedSheet(0) | |
, m_loading(false) | |
{ | |
if (m_lstMedia) | |
m_lstMedia->setParent(this); | |
else | |
m_lstMedia = MediaList::create(this, String()); | |
} | |
CSSImportRule::~CSSImportRule() | |
{ | |
if (m_lstMedia) | |
m_lstMedia->setParent(0); | |
if (m_styleSheet) | |
m_styleSheet->setParent(0); | |
if (m_cachedSheet) | |
m_cachedSheet->removeClient(this); | |
} | |
void CSSImportRule::setCSSStyleSheet(const String& href, const KURL& baseURL, const String& charset, const CachedCSSStyleSheet* sheet) | |
{ | |
if (m_styleSheet) | |
m_styleSheet->setParent(0); | |
m_styleSheet = CSSStyleSheet::create(this, href, baseURL, charset); | |
bool crossOriginCSS = false; | |
bool validMIMEType = false; | |
CSSStyleSheet* parent = parentStyleSheet(); | |
bool strict = !parent || parent->useStrictParsing(); | |
bool enforceMIMEType = strict; | |
bool needsSiteSpecificQuirks = parent && parent->doc() && parent->doc()->settings() && parent->doc()->settings()->needsSiteSpecificQuirks(); | |
#if defined(BUILDING_ON_TIGER) || defined(BUILDING_ON_LEOPARD) | |
if (enforceMIMEType && needsSiteSpecificQuirks) { | |
// Covers both http and https, with or without "www." | |
if (baseURL.string().contains("mcafee.com/japan/", false)) | |
enforceMIMEType = false; | |
} | |
#endif | |
String sheetText = sheet->sheetText(enforceMIMEType, &validMIMEType); | |
m_styleSheet->parseString(sheetText, strict); | |
if (!parent || !parent->doc() || !parent->doc()->securityOrigin()->canRequest(baseURL)) | |
crossOriginCSS = true; | |
if (crossOriginCSS && !validMIMEType && !m_styleSheet->hasSyntacticallyValidCSSHeader()) | |
m_styleSheet = CSSStyleSheet::create(this, href, baseURL, charset); | |
if (strict && needsSiteSpecificQuirks) { | |
// Work around <https://bugs.webkit.org/show_bug.cgi?id=28350>. | |
DEFINE_STATIC_LOCAL(const String, slashKHTMLFixesDotCss, ("/KHTMLFixes.css")); | |
DEFINE_STATIC_LOCAL(const String, mediaWikiKHTMLFixesStyleSheet, ("/* KHTML fix stylesheet */\n/* work around the horizontal scrollbars */\n#column-content { margin-left: 0; }\n\n")); | |
// There are two variants of KHTMLFixes.css. One is equal to mediaWikiKHTMLFixesStyleSheet, | |
// while the other lacks the second trailing newline. | |
if (baseURL.string().endsWith(slashKHTMLFixesDotCss) && !sheetText.isNull() && mediaWikiKHTMLFixesStyleSheet.startsWith(sheetText) | |
&& sheetText.length() >= mediaWikiKHTMLFixesStyleSheet.length() - 1) { | |
ASSERT(m_styleSheet->length() == 1); | |
ExceptionCode ec; | |
m_styleSheet->deleteRule(0, ec); | |
} | |
} | |
m_loading = false; | |
if (parent) | |
parent->checkLoaded(); | |
} | |
bool CSSImportRule::isLoading() const | |
{ | |
return m_loading || (m_styleSheet && m_styleSheet->isLoading()); | |
} | |
void CSSImportRule::insertedIntoParent() | |
{ | |
CSSStyleSheet* parentSheet = parentStyleSheet(); | |
if (!parentSheet) | |
return; | |
DocLoader* docLoader = parentSheet->doc()->docLoader(); | |
if (!docLoader) | |
return; | |
String absHref = m_strHref; | |
if (!parentSheet->finalURL().isNull()) | |
// use parent styleheet's URL as the base URL | |
absHref = KURL(parentSheet->finalURL(), m_strHref).string(); | |
// Check for a cycle in our import chain. If we encounter a stylesheet | |
// in our parent chain with the same URL, then just bail. | |
StyleBase* root = this; | |
for (StyleBase* curr = parent(); curr; curr = curr->parent()) { | |
// FIXME: This is wrong if the finalURL was updated via document::updateBaseURL. | |
if (curr->isCSSStyleSheet() && absHref == static_cast<CSSStyleSheet*>(curr)->finalURL().string()) | |
return; | |
root = curr; | |
} | |
if (parentSheet->isUserStyleSheet()) | |
m_cachedSheet = docLoader->requestUserCSSStyleSheet(absHref, parentSheet->charset()); | |
else | |
m_cachedSheet = docLoader->requestCSSStyleSheet(absHref, parentSheet->charset()); | |
if (m_cachedSheet) { | |
// if the import rule is issued dynamically, the sheet may be | |
// removed from the pending sheet count, so let the doc know | |
// the sheet being imported is pending. | |
if (parentSheet && parentSheet->loadCompleted() && root == parentSheet) | |
parentSheet->doc()->addPendingSheet(); | |
m_loading = true; | |
m_cachedSheet->addClient(this); | |
} | |
} | |
String CSSImportRule::cssText() const | |
{ | |
String result = "@import url(\""; | |
result += m_strHref; | |
result += "\")"; | |
if (m_lstMedia) { | |
result += " "; | |
result += m_lstMedia->mediaText(); | |
} | |
result += ";"; | |
return result; | |
} | |
void CSSImportRule::addSubresourceStyleURLs(ListHashSet<KURL>& urls) | |
{ | |
if (m_styleSheet) | |
addSubresourceURL(urls, m_styleSheet->baseURL()); | |
} | |
} // namespace WebCore |