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3b60d37ad1
In preparation of simplifying how we collect and process sheets now that we don't support descendant, sibling and tree boundary crossing rules we should switch to always going down the Reconstruct path. This might be somewhat slower to start, but because our rules are so much simpler we should be able to rebuild the StyleEngine to do something simpler and faster. R=ojan@chromium.org Review URL: https://codereview.chromium.org/774953002
86 lines
3.1 KiB
C++
86 lines
3.1 KiB
C++
/*
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* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
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* (C) 1999 Antti Koivisto (koivisto@kde.org)
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* (C) 2001 Dirk Mueller (mueller@kde.org)
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* (C) 2006 Alexey Proskuryakov (ap@webkit.org)
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* Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
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* Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
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* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
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* Copyright (C) 2013 Google 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/dom/TreeScopeStyleSheetCollection.h"
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#include "sky/engine/core/css/CSSStyleSheet.h"
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#include "sky/engine/core/css/StyleSheetContents.h"
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#include "sky/engine/core/css/resolver/StyleResolver.h"
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#include "sky/engine/core/dom/Element.h"
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#include "sky/engine/core/dom/StyleEngine.h"
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#include "sky/engine/core/html/HTMLStyleElement.h"
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namespace blink {
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TreeScopeStyleSheetCollection::TreeScopeStyleSheetCollection(TreeScope& treeScope)
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: m_treeScope(treeScope)
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, m_usesRemUnits(false)
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{
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}
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void TreeScopeStyleSheetCollection::addStyleSheetCandidateNode(Node* node, bool)
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{
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if (!node->inDocument())
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return;
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// Until the <body> exists, we have no choice but to compare document positions,
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// since styles outside of the body and head continue to be shunted into the head
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// (and thus can shift to end up before dynamically added DOM content that is also
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// outside the body).
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m_styleSheetCandidateNodes.add(node);
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}
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void TreeScopeStyleSheetCollection::removeStyleSheetCandidateNode(Node* node, ContainerNode* scopingNode)
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{
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m_styleSheetCandidateNodes.remove(node);
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}
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void TreeScopeStyleSheetCollection::clearMediaQueryRuleSetStyleSheets()
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{
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for (size_t i = 0; i < m_activeAuthorStyleSheets.size(); ++i) {
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StyleSheetContents* contents = m_activeAuthorStyleSheets[i]->contents();
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if (contents->hasMediaQueries())
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contents->clearRuleSet();
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}
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}
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static bool styleSheetsUseRemUnits(const Vector<RefPtr<CSSStyleSheet> >& sheets)
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{
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for (unsigned i = 0; i < sheets.size(); ++i) {
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if (sheets[i]->contents()->usesRemUnits())
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return true;
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}
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return false;
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}
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void TreeScopeStyleSheetCollection::updateUsesRemUnits()
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{
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m_usesRemUnits = styleSheetsUseRemUnits(m_activeAuthorStyleSheets);
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}
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}
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