| /* |
| * 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 COMPUTER, 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 COMPUTER, 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 "third_party/blink/renderer/core/css/style_media.h" |
| |
| #include "third_party/blink/renderer/core/css/media_list.h" |
| #include "third_party/blink/renderer/core/css/media_query_evaluator.h" |
| #include "third_party/blink/renderer/core/dom/document.h" |
| #include "third_party/blink/renderer/core/frame/local_dom_window.h" |
| #include "third_party/blink/renderer/core/frame/local_frame.h" |
| #include "third_party/blink/renderer/core/frame/local_frame_view.h" |
| |
| namespace blink { |
| |
| StyleMedia::StyleMedia(LocalDOMWindow* window) |
| : ExecutionContextClient(window) {} |
| |
| AtomicString StyleMedia::type() const { |
| if (!DomWindow()) { |
| return g_null_atom; |
| } |
| return DomWindow()->GetFrame()->View()->MediaType(); |
| } |
| |
| bool StyleMedia::matchMedium(const String& query) const { |
| if (!DomWindow()) { |
| return false; |
| } |
| |
| Element* document_element = DomWindow()->document()->documentElement(); |
| if (!document_element) { |
| return false; |
| } |
| |
| const MediaQuerySet* media = MediaQuerySet::Create(query, DomWindow()); |
| DCHECK(media); |
| |
| MediaQueryEvaluator screen_eval(DomWindow()->GetFrame()); |
| return screen_eval.Eval(*media); |
| } |
| |
| void StyleMedia::Trace(Visitor* visitor) const { |
| ScriptWrappable::Trace(visitor); |
| ExecutionContextClient::Trace(visitor); |
| } |
| |
| } // namespace blink |