| /* |
| * Copyright (C) 2009 Apple Inc. 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 APPLE INC. ``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 APPLE INC. OR |
| * CONTRIBUTORS 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. |
| */ |
| |
| #include "config.h" |
| #include "StyleMedia.h" |
| |
| #include "Document.h" |
| #include "Frame.h" |
| #include "FrameView.h" |
| #include "MediaList.h" |
| #include "MediaQueryEvaluator.h" |
| #include "MediaQueryParser.h" |
| #include "NodeRenderStyle.h" |
| #include "RenderElement.h" |
| #include "StyleResolver.h" |
| #include "StyleScope.h" |
| |
| namespace WebCore { |
| |
| StyleMedia::StyleMedia(Frame* frame) |
| : DOMWindowProperty(frame) |
| { |
| } |
| |
| String StyleMedia::type() const |
| { |
| FrameView* view = m_frame ? m_frame->view() : 0; |
| if (view) |
| return view->mediaType(); |
| |
| return String(); |
| } |
| |
| bool StyleMedia::matchMedium(const String& query) const |
| { |
| if (!m_frame) |
| return false; |
| |
| Document* document = m_frame->document(); |
| ASSERT(document); |
| Element* documentElement = document->documentElement(); |
| if (!documentElement) |
| return false; |
| |
| auto rootStyle = document->styleScope().resolver().styleForElement(*documentElement, document->renderStyle(), nullptr, MatchOnlyUserAgentRules).renderStyle; |
| |
| auto media = MediaQuerySet::create(query, MediaQueryParserContext(*document)); |
| |
| return MediaQueryEvaluator { type(), *document, rootStyle.get() }.evaluate(media.get()); |
| } |
| |
| } // namespace WebCore |