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author | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 19:30:52 -0800 |
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committer | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 19:30:52 -0800 |
commit | 8e35f3cfc7fba1d1c829dc557ebad6409cbe16a2 (patch) | |
tree | 11425ea0b299d6fb89c6d3618a22d97d5bf68d0f /WebCore/css/CSSImportRule.cpp | |
parent | 648161bb0edfc3d43db63caed5cc5213bc6cb78f (diff) | |
download | external_webkit-8e35f3cfc7fba1d1c829dc557ebad6409cbe16a2.zip external_webkit-8e35f3cfc7fba1d1c829dc557ebad6409cbe16a2.tar.gz external_webkit-8e35f3cfc7fba1d1c829dc557ebad6409cbe16a2.tar.bz2 |
auto import from //depot/cupcake/@135843
Diffstat (limited to 'WebCore/css/CSSImportRule.cpp')
-rw-r--r-- | WebCore/css/CSSImportRule.cpp | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/WebCore/css/CSSImportRule.cpp b/WebCore/css/CSSImportRule.cpp new file mode 100644 index 0000000..42d038f --- /dev/null +++ b/WebCore/css/CSSImportRule.cpp @@ -0,0 +1,126 @@ +/* + * (C) 1999-2003 Lars Knoll (knoll@kde.org) + * (C) 2002-2003 Dirk Mueller (mueller@kde.org) + * Copyright (C) 2002, 2005, 2006, 2008 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 "MediaList.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& url, const String& charset, const CachedCSSStyleSheet* sheet) +{ + if (m_styleSheet) + m_styleSheet->setParent(0); + m_styleSheet = CSSStyleSheet::create(this, url, charset); + + CSSStyleSheet* parent = parentStyleSheet(); + bool strict = !parent || parent->useStrictParsing(); + m_styleSheet->parseString(sheet->sheetText(strict), strict); + 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->href().isNull()) + // use parent styleheet's URL as the base URL + absHref = KURL(KURL(parentSheet->href()), 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()) { + if (curr->isCSSStyleSheet() && absHref == static_cast<CSSStyleSheet*>(curr)->href()) + return; + root = curr; + } + + 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; +} + +} // namespace WebCore |