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3ffc5ab932
The clients were only used to call clearResolver(), but all clients in Sky are from the same document, so we can just store the document instead. We can also use the lifetime of the StyleSheetContents object to manage the cache in the StyleEngine instead of the list of clients. R=eseidel@chromium.org Review URL: https://codereview.chromium.org/791633010
91 lines
3.0 KiB
C++
91 lines
3.0 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/config.h"
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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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#include "sky/engine/core/html/HTMLStyleElement.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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|| isHTMLStyleElement(*parentNode);
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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(), 0, 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->modifiedStyleSheet(this);
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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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