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e0fd75b5ab
This caused us to lose our gn check certification. :( Turns out gn check was just ignoring all the header paths it didn't understand and so gn check passing for sky wasn't meaning much. I tried to straighten out some of the mess in this CL, but its going to take several more rounds of massaging before gn check passes again. On the bright side (almost) all of our headers are absolute now. Turns out my script (attached to the bug) didn't notice ../ includes but I'll fix that in the next patch. R=abarth@chromium.org BUG=435361 Review URL: https://codereview.chromium.org/746023002
173 lines
7.1 KiB
C++
173 lines
7.1 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/invalidation/StyleSheetInvalidationAnalysis.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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TreeScopeStyleSheetCollection::StyleResolverUpdateType TreeScopeStyleSheetCollection::compareStyleSheets(const Vector<RefPtr<CSSStyleSheet> >& oldStyleSheets, const Vector<RefPtr<CSSStyleSheet> >& newStylesheets, Vector<RawPtr<StyleSheetContents> >& addedSheets)
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{
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unsigned newStyleSheetCount = newStylesheets.size();
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unsigned oldStyleSheetCount = oldStyleSheets.size();
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ASSERT(newStyleSheetCount >= oldStyleSheetCount);
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if (!newStyleSheetCount)
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return Reconstruct;
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unsigned newIndex = 0;
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for (unsigned oldIndex = 0; oldIndex < oldStyleSheetCount; ++oldIndex) {
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while (oldStyleSheets[oldIndex] != newStylesheets[newIndex]) {
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addedSheets.append(newStylesheets[newIndex]->contents());
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if (++newIndex == newStyleSheetCount)
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return Reconstruct;
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}
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if (++newIndex == newStyleSheetCount)
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return Reconstruct;
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}
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bool hasInsertions = !addedSheets.isEmpty();
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while (newIndex < newStyleSheetCount) {
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addedSheets.append(newStylesheets[newIndex]->contents());
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++newIndex;
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}
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// If all new sheets were added at the end of the list we can just add them to existing StyleResolver.
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// If there were insertions we need to re-add all the stylesheets so rules are ordered correctly.
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return hasInsertions ? Reset : Additive;
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}
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static bool findFontFaceRulesFromStyleSheetContents(const Vector<RawPtr<StyleSheetContents> >& sheets, Vector<RawPtr<const StyleRuleFontFace> >& fontFaceRules)
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{
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bool hasFontFaceRule = false;
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for (unsigned i = 0; i < sheets.size(); ++i) {
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ASSERT(sheets[i]);
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if (sheets[i]->hasFontFaceRule()) {
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// FIXME: We don't need this for styles in shadow tree.
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sheets[i]->findFontFaceRules(fontFaceRules);
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hasFontFaceRule = true;
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}
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}
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return hasFontFaceRule;
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}
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void TreeScopeStyleSheetCollection::analyzeStyleSheetChange(StyleResolverUpdateMode updateMode, const StyleSheetCollection& newCollection, StyleSheetChange& change)
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{
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if (updateMode != AnalyzedStyleUpdate)
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return;
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// Find out which stylesheets are new.
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Vector<RawPtr<StyleSheetContents> > addedSheets;
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if (m_activeAuthorStyleSheets.size() <= newCollection.activeAuthorStyleSheets().size()) {
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change.styleResolverUpdateType = compareStyleSheets(m_activeAuthorStyleSheets, newCollection.activeAuthorStyleSheets(), addedSheets);
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} else {
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StyleResolverUpdateType updateType = compareStyleSheets(newCollection.activeAuthorStyleSheets(), m_activeAuthorStyleSheets, addedSheets);
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if (updateType != Additive) {
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change.styleResolverUpdateType = updateType;
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} else {
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change.styleResolverUpdateType = Reset;
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// If @font-face is removed, needs full style recalc.
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if (findFontFaceRulesFromStyleSheetContents(addedSheets, change.fontFaceRulesToRemove))
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return;
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}
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}
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// FIXME: If styleResolverUpdateType is Reconstruct, we should return early here since
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// we need to recalc the whole document. It's wrong to use StyleSheetInvalidationAnalysis since
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// it only looks at the addedSheets.
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// No point in doing the analysis work if we're just going to recalc the whole document anyways.
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// This needs to be done after the compareStyleSheets calls above to ensure we don't throw away
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// the StyleResolver if we don't need to.
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if (document().hasPendingForcedStyleRecalc())
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return;
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// If we are already parsing the body and so may have significant amount of elements, put some effort into trying to avoid style recalcs.
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if (document().hasNodesWithPlaceholderStyle())
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return;
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StyleSheetInvalidationAnalysis invalidationAnalysis(addedSheets);
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if (invalidationAnalysis.dirtiesAllStyle())
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return;
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invalidationAnalysis.invalidateStyle(document());
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change.requiresFullStyleRecalc = false;
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return;
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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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