2 * Copyright (C) 2009 Apple Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 #include "core/css/StyleMedia.h"
29 #include "core/css/MediaList.h"
30 #include "core/css/MediaQueryEvaluator.h"
31 #include "core/css/resolver/StyleResolver.h"
32 #include "core/dom/Document.h"
33 #include "core/frame/FrameView.h"
34 #include "core/frame/LocalFrame.h"
38 StyleMedia::StyleMedia(LocalFrame* frame)
39 : DOMWindowProperty(frame)
43 AtomicString StyleMedia::type() const
45 FrameView* view = m_frame ? m_frame->view() : 0;
47 return view->mediaType();
52 bool StyleMedia::matchMedium(const String& query) const
57 Document* document = m_frame->document();
59 Element* documentElement = document->documentElement();
63 StyleResolver& styleResolver = document->ensureStyleResolver();
64 RefPtr<RenderStyle> rootStyle = styleResolver.styleForElement(documentElement, 0 /*defaultParent*/, DisallowStyleSharing, MatchOnlyUserAgentRules);
66 RefPtrWillBeRawPtr<MediaQuerySet> media = MediaQuerySet::create();
67 if (!media->set(query))
70 MediaQueryEvaluator screenEval(type(), m_frame, rootStyle.get());
71 return screenEval.eval(media.get());
74 } // namespace WebCore