| /* |
| * 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/Element.h" |
| #include "core/dom/StyleEngine.h" |
| #include "core/dom/shadow/ShadowRoot.h" |
| #include "core/html/HTMLStyleElement.h" |
| #include "core/frame/Settings.h" |
| |
| namespace WebCore { |
| |
| using namespace HTMLNames; |
| |
| ShadowTreeStyleSheetCollection::ShadowTreeStyleSheetCollection(ShadowRoot& shadowRoot) |
| : StyleSheetCollection(shadowRoot) |
| { |
| } |
| |
| void ShadowTreeStyleSheetCollection::collectStyleSheets(StyleEngine* engine, StyleSheetCollectionBase& collection) |
| { |
| 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 = toHTMLStyleElement(node)->sheet(); |
| if (sheet && !sheet->disabled() && sheet->isCSSStyleSheet()) |
| activeSheet = toCSSStyleSheet(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 (engine->preferredStylesheetSetName().isEmpty()) { |
| if (element->hasLocalName(styleTag) || !rel.contains("alternate")) { |
| engine->setPreferredStylesheetSetName(title); |
| engine->setSelectedStylesheetSetName(title); |
| } |
| } |
| if (title != engine->preferredStylesheetSetName()) |
| activeSheet = 0; |
| } |
| |
| if (rel.contains("alternate") && title.isEmpty()) |
| activeSheet = 0; |
| |
| if (sheet) |
| collection.appendSheetForList(sheet); |
| if (activeSheet) |
| collection.appendActiveStyleSheet(activeSheet); |
| } |
| } |
| |
| bool ShadowTreeStyleSheetCollection::updateActiveStyleSheets(StyleEngine* engine, StyleResolverUpdateMode updateMode) |
| { |
| StyleSheetCollectionBase collection; |
| collectStyleSheets(engine, collection); |
| |
| StyleSheetChange change; |
| analyzeStyleSheetChange(updateMode, collection, change); |
| |
| if (StyleResolver* styleResolver = engine->resolver()) { |
| // 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 (change.styleResolverUpdateType != Additive) { |
| // 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->removePendingAuthorStyleSheets(m_activeAuthorStyleSheets); |
| styleResolver->lazyAppendAuthorStyleSheets(0, collection.activeAuthorStyleSheets()); |
| } else { |
| styleResolver->lazyAppendAuthorStyleSheets(m_activeAuthorStyleSheets.size(), collection.activeAuthorStyleSheets()); |
| } |
| } |
| if (change.requiresFullStyleRecalc) |
| toShadowRoot(m_treeScope.rootNode())->host()->setNeedsStyleRecalc(); |
| |
| m_scopingNodesForStyleScoped.didRemoveScopingNodes(); |
| collection.swap(*this); |
| updateUsesRemUnits(); |
| |
| return change.requiresFullStyleRecalc; |
| } |
| |
| } |