77 lines
2.6 KiB
C++
77 lines
2.6 KiB
C++
/*
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* Copyright (C) 2009 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "StyleMedia.h"
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#include "Document.h"
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#include "Frame.h"
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#include "FrameView.h"
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#include "MediaList.h"
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#include "MediaQueryEvaluator.h"
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#include "MediaQueryParser.h"
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#include "NodeRenderStyle.h"
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#include "RenderElement.h"
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#include "StyleResolver.h"
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#include "StyleScope.h"
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namespace WebCore {
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StyleMedia::StyleMedia(DOMWindow& window)
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: DOMWindowProperty(&window)
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{
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}
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String StyleMedia::type() const
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{
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auto* frame = this->frame();
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FrameView* view = frame ? frame->view() : nullptr;
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if (view)
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return view->mediaType();
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return String();
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}
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bool StyleMedia::matchMedium(const String& query) const
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{
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auto* frame = this->frame();
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if (!frame)
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return false;
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Document* document = frame->document();
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ASSERT(document);
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Element* documentElement = document->documentElement();
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if (!documentElement)
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return false;
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auto rootStyle = document->styleScope().resolver().styleForElement(*documentElement, document->renderStyle(), nullptr, RuleMatchingBehavior::MatchOnlyUserAgentRules).renderStyle;
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auto media = MediaQuerySet::create(query, MediaQueryParserContext(*document));
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return MediaQueryEvaluator { type(), *document, rootStyle.get() }.evaluate(media.get());
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}
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} // namespace WebCore
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