1/*
2 * Copyright (C) 2015-2016 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
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.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "ContentExtensionStyleSheet.h"
28
29#if ENABLE(CONTENT_EXTENSIONS)
30
31#include "CSSStyleSheet.h"
32#include "ContentExtensionsBackend.h"
33#include "Document.h"
34#include "StyleSheetContents.h"
35#include <wtf/text/StringBuilder.h>
36
37namespace WebCore {
38namespace ContentExtensions {
39
40ContentExtensionStyleSheet::ContentExtensionStyleSheet(Document& document)
41 : m_styleSheet(CSSStyleSheet::create(StyleSheetContents::create(), document))
42{
43 m_styleSheet->contents().setIsUserStyleSheet(true);
44}
45
46ContentExtensionStyleSheet::~ContentExtensionStyleSheet()
47{
48 m_styleSheet->clearOwnerNode();
49}
50
51bool ContentExtensionStyleSheet::addDisplayNoneSelector(const String& selector, uint32_t selectorID)
52{
53 ASSERT(selectorID != std::numeric_limits<uint32_t>::max());
54
55 if (!m_addedSelectorIDs.add(selectorID).isNewEntry)
56 return false;
57
58 StringBuilder css;
59 css.append(selector);
60 css.append('{');
61 css.append(ContentExtensionsBackend::displayNoneCSSRule());
62 css.append('}');
63 m_styleSheet->contents().parseString(css.toString());
64 return true;
65}
66
67} // namespace ContentExtensions
68} // namespace WebCore
69
70#endif // ENABLE(CONTENT_EXTENSIONS)
71