| /* |
| * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
| * (C) 1999 Antti Koivisto (koivisto@kde.org) |
| * (C) 2001 Dirk Mueller (mueller@kde.org) |
| * (C) 2006 Alexey Proskuryakov (ap@webkit.org) |
| * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved. |
| * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/) |
| * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies) |
| * Copyright (C) 2013 Google Inc. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #include "config.h" |
| #include "core/dom/ShadowTreeStyleSheetCollection.h" |
| |
| #include "HTMLNames.h" |
| #include "core/css/CSSStyleSheet.h" |
| #include "core/css/resolver/StyleResolver.h" |
| #include "core/dom/Document.h" |
| #include "core/dom/DocumentStyleSheetCollection.h" |
| #include "core/dom/Element.h" |
| #include "core/dom/shadow/ShadowRoot.h" |
| #include "core/html/HTMLStyleElement.h" |
| #include "core/page/Settings.h" |
| |
| namespace WebCore { |
| |
| using namespace HTMLNames; |
| |
| ShadowTreeStyleSheetCollection::ShadowTreeStyleSheetCollection(ShadowRoot* shadowRoot) |
| : StyleSheetCollection(shadowRoot) |
| { |
| } |
| |
| void ShadowTreeStyleSheetCollection::collectStyleSheets(DocumentStyleSheetCollection* collections, Vector<RefPtr<StyleSheet> >& styleSheets, Vector<RefPtr<CSSStyleSheet> >& activeSheets) |
| { |
| if (document()->settings() && !document()->settings()->authorAndUserStylesEnabled()) |
| return; |
| |
| DocumentOrderedList::iterator begin = m_styleSheetCandidateNodes.begin(); |
| DocumentOrderedList::iterator end = m_styleSheetCandidateNodes.end(); |
| for (DocumentOrderedList::iterator it = begin; it != end; ++it) { |
| Node* node = *it; |
| StyleSheet* sheet = 0; |
| CSSStyleSheet* activeSheet = 0; |
| |
| if (!node->isHTMLElement() || !node->hasTagName(styleTag)) |
| continue; |
| |
| Element* element = toElement(node); |
| AtomicString title = element->getAttribute(titleAttr); |
| bool enabledViaScript = false; |
| |
| sheet = static_cast<HTMLStyleElement*>(node)->sheet(); |
| if (sheet && !sheet->disabled() && sheet->isCSSStyleSheet()) |
| activeSheet = static_cast<CSSStyleSheet*>(sheet); |
| |
| // FIXME: clarify how PREFERRED or ALTERNATE works in shadow trees. |
| // Should we set preferred/selected stylesheets name in shadow trees and |
| // use the name in document? |
| AtomicString rel = element->getAttribute(relAttr); |
| if (!enabledViaScript && sheet && !title.isEmpty()) { |
| if (collections->preferredStylesheetSetName().isEmpty()) { |
| if (element->hasLocalName(styleTag) || !rel.contains("alternate")) { |
| collections->setPreferredStylesheetSetName(title); |
| collections->setSelectedStylesheetSetName(title); |
| } |
| } |
| if (title != collections->preferredStylesheetSetName()) |
| activeSheet = 0; |
| } |
| |
| if (rel.contains("alternate") && title.isEmpty()) |
| activeSheet = 0; |
| |
| if (sheet) |
| styleSheets.append(sheet); |
| if (activeSheet) |
| activeSheets.append(activeSheet); |
| } |
| } |
| |
| bool ShadowTreeStyleSheetCollection::updateActiveStyleSheets(DocumentStyleSheetCollection* collections, StyleResolverUpdateMode updateMode) |
| { |
| Vector<RefPtr<StyleSheet> > styleSheets; |
| Vector<RefPtr<CSSStyleSheet> > activeCSSStyleSheets; |
| collectStyleSheets(collections, styleSheets, activeCSSStyleSheets); |
| |
| bool requiresFullStyleRecalc = true; |
| |
| // If we have already decided to destroy StyleResolver, we don't need to analyze. Reconstruction will take care. |
| if (StyleResolver* styleResolver = document()->styleResolverIfExists()) { |
| StyleResolverUpdateType styleResolverUpdateType; |
| |
| analyzeStyleSheetChange(updateMode, activeAuthorStyleSheets(), activeCSSStyleSheets, styleResolverUpdateType, requiresFullStyleRecalc); |
| |
| // FIXME: We might have already had styles in child treescope. In this case, we cannot use buildScopedStyleTreeInDocumentOrder. |
| // Need to change "false" to some valid condition. |
| styleResolver->setBuildScopedStyleTreeInDocumentOrder(false); |
| if (styleResolverUpdateType == Reset || styleResolverUpdateType == Reconstruct) { |
| // We should not destroy StyleResolver when we find any stylesheet update in a shadow tree. |
| // In this case, we will reset rulesets created from style elements in the shadow tree. |
| resetAllRuleSetsInTreeScope(styleResolver); |
| styleResolver->appendAuthorStyleSheets(0, activeCSSStyleSheets); |
| } else { |
| ASSERT(styleResolverUpdateType == Additive); |
| styleResolver->appendAuthorStyleSheets(m_activeAuthorStyleSheets.size(), activeCSSStyleSheets); |
| } |
| } |
| m_scopingNodesForStyleScoped.didRemoveScopingNodes(); |
| m_activeAuthorStyleSheets.swap(activeCSSStyleSheets); |
| m_styleSheetsForStyleSheetList.swap(styleSheets); |
| updateUsesRemUnits(); |
| |
| return requiresFullStyleRecalc; |
| } |
| |
| } |