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88 lines
2.9 KiB
C++
88 lines
2.9 KiB
C++
/*
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* (C) 1999-2003 Lars Knoll (knoll@kde.org)
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* Copyright (C) 2004, 2006, 2007, 2012 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 "sky/engine/core/css/CSSStyleSheet.h"
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#include "sky/engine/core/css/MediaList.h"
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#include "sky/engine/core/css/StyleSheetContents.h"
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#include "sky/engine/core/dom/Document.h"
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#include "sky/engine/core/dom/Node.h"
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namespace blink {
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#if ENABLE(ASSERT)
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static bool isAcceptableCSSStyleSheetParent(Node* parentNode)
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{
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// Only these nodes can be parents of StyleSheets, and they need to call
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// clearOwnerNode() when moved out of document.
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// Destruction of the style sheet counts as being "moved out of the
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// document", but only in the non-oilpan version of blink. I.e. don't call
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// clearOwnerNode() in the owner's destructor in oilpan.
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return !parentNode
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|| parentNode->isDocumentNode();
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}
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#endif
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PassRefPtr<CSSStyleSheet> CSSStyleSheet::create(PassRefPtr<StyleSheetContents> sheet, Node* ownerNode)
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{
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ASSERT(sheet);
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return adoptRef(new CSSStyleSheet(sheet, ownerNode));
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}
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PassRefPtr<CSSStyleSheet> CSSStyleSheet::create(Node* ownerNode, const KURL& baseURL)
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{
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CSSParserContext parserContext(ownerNode->document(), baseURL);
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RefPtr<StyleSheetContents> sheet = StyleSheetContents::create(&ownerNode->document(), parserContext);
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return adoptRef(new CSSStyleSheet(sheet.release(), ownerNode));
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}
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CSSStyleSheet::CSSStyleSheet(PassRefPtr<StyleSheetContents> contents, Node* ownerNode)
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: m_contents(contents)
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, m_ownerNode(ownerNode)
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{
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ASSERT(isAcceptableCSSStyleSheetParent(ownerNode));
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}
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CSSStyleSheet::~CSSStyleSheet()
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{
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}
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void CSSStyleSheet::setMediaQueries(PassRefPtr<MediaQuerySet> mediaQueries)
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{
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m_mediaQueries = mediaQueries;
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// Add warning message to inspector whenever dpi/dpcm values are used for "screen" media.
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reportMediaQueryWarningIfNeeded(ownerDocument(), m_mediaQueries.get());
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}
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void CSSStyleSheet::clearOwnerNode()
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{
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if (Document* owner = ownerDocument())
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owner->styleResolverChanged();
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m_ownerNode = nullptr;
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}
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Document* CSSStyleSheet::ownerDocument() const
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{
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return ownerNode() ? &ownerNode()->document() : 0;
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}
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} // namespace blink
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