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In Sky <style> elements in import documents don't apply to the main document, so we don't need the StyleEngine to be aware of the import tree. This change makes us only create the StyleEngine for active documents. R=eseidel@chromium.org Review URL: https://codereview.chromium.org/813493003
113 lines
4.4 KiB
C++
113 lines
4.4 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/StyleSheetCollection.h"
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#include "sky/engine/core/css/CSSStyleSheet.h"
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#include "sky/engine/core/css/resolver/StyleResolver.h"
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#include "sky/engine/core/dom/Document.h"
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#include "sky/engine/core/dom/StyleEngine.h"
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#include "sky/engine/core/dom/shadow/ShadowRoot.h"
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#include "sky/engine/core/dom/TreeScope.h"
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#include "sky/engine/core/html/HTMLStyleElement.h"
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namespace blink {
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StyleSheetCollection::StyleSheetCollection(TreeScope& treeScope)
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: m_treeScope(treeScope)
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{
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}
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StyleSheetCollection::~StyleSheetCollection()
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{
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}
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void StyleSheetCollection::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 StyleSheetCollection::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 StyleSheetCollection::collectStyleSheets(Vector<RefPtr<CSSStyleSheet>>& sheets)
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{
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DocumentOrderedList::iterator begin = m_styleSheetCandidateNodes.begin();
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DocumentOrderedList::iterator end = m_styleSheetCandidateNodes.end();
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for (DocumentOrderedList::iterator it = begin; it != end; ++it) {
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Node* node = *it;
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if (!isHTMLStyleElement(*node))
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continue;
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if (CSSStyleSheet* sheet = toHTMLStyleElement(node)->sheet())
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sheets.append(sheet);
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}
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}
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void StyleSheetCollection::updateActiveStyleSheets(StyleEngine* engine)
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{
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Vector<RefPtr<CSSStyleSheet>> candidateSheets;
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collectStyleSheets(candidateSheets);
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Node& root = m_treeScope.rootNode();
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// TODO(esprehn): Remove special casing for Document.
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if (root.isDocumentNode()) {
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engine->clearResolver();
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// FIMXE: The following depends on whether StyleRuleFontFace was modified or not.
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// No need to always-clear font cache.
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engine->clearFontCache();
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} else if (StyleResolver* styleResolver = engine->resolver()) {
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// We should not destroy StyleResolver when we find any stylesheet update in a shadow tree.
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// In this case, we will reset rulesets created from style elements in the shadow tree.
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styleResolver->resetAuthorStyle(m_treeScope);
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styleResolver->removePendingAuthorStyleSheets(m_activeAuthorStyleSheets);
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styleResolver->lazyAppendAuthorStyleSheets(0, candidateSheets);
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}
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// TODO(esprehn): We should avoid subtree recalcs in sky when rules change
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// and only recalc specific tree scopes.
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root.setNeedsStyleRecalc(SubtreeStyleChange);
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// TODO(esprehn): We should use LocalStyleChange, :host rule changes
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// can only impact the host directly as Sky has no descendant selectors.
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if (root.isShadowRoot())
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toShadowRoot(root).host()->setNeedsStyleRecalc(SubtreeStyleChange);
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m_activeAuthorStyleSheets.swap(candidateSheets);
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}
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}
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