/* * Copyright (C) 2012 Intel Corporation. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * 2. Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef ViewportStyleResolver_h #define ViewportStyleResolver_h #include "CSSPropertyNames.h" #include "core/css/RuleSet.h" #include "platform/Length.h" #include "wtf/RefCounted.h" #include "wtf/RefPtr.h" namespace WebCore { class Document; class MutableStylePropertySet; class StyleRuleViewport; class ViewportStyleResolver : public NoBaseWillBeGarbageCollected<ViewportStyleResolver> { DECLARE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(ViewportStyleResolver); public: static PassOwnPtrWillBeRawPtr<ViewportStyleResolver> create(Document* document) { return adoptPtrWillBeNoop(new ViewportStyleResolver(document)); } enum Origin { UserAgentOrigin, AuthorOrigin }; void collectViewportRules(RuleSet*, Origin); void resolve(); void trace(Visitor*); private: explicit ViewportStyleResolver(Document*); void addViewportRule(StyleRuleViewport*, Origin); float viewportArgumentValue(CSSPropertyID) const; Length viewportLengthValue(CSSPropertyID) const; Document* m_document; RefPtrWillBeMember<MutableStylePropertySet> m_propertySet; bool m_hasAuthorStyle; }; } // namespace WebCore #endif // ViewportStyleResolver_h