887db4cb25da7fea00f46ceee073e42492a25f79
[WebKit-https.git] / Source / WebCore / dom / ContextFeatures.cpp
1 /*
2  * Copyright (C) 2012 Google 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 are
6  * met:
7  *
8  *     * Redistributions of source code must retain the above copyright
9  * notice, this list of conditions and the following disclaimer.
10  *     * Neither the name of Google Inc. nor the names of its
11  * contributors may be used to endorse or promote products derived from
12  * this software without specific prior written permission.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
15  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
16  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
17  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
18  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
19  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
20  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  */
26
27 #include "config.h"
28 #include "ContextFeatures.h"
29
30 #include "Document.h"
31 #include "Page.h"
32 #include "RuntimeEnabledFeatures.h"
33
34 namespace WebCore {
35
36 ContextFeaturesClient* ContextFeaturesClient::empty()
37 {
38     DEFINE_STATIC_LOCAL(ContextFeaturesClient, empty, ());
39     return ∅
40 }
41
42 const AtomicString& ContextFeatures::supplementName()
43 {
44     DEFINE_STATIC_LOCAL(AtomicString, name, ("ContextFeatures"));
45     return name;
46 }
47
48 ContextFeatures* ContextFeatures::defaultSwitch()
49 {
50     DEFINE_STATIC_LOCAL(RefPtr<ContextFeatures>, instance, (ContextFeatures::create(ContextFeaturesClient::empty())));
51     return instance.get();
52 }
53
54 bool ContextFeatures::shadowDOMEnabled(Document* document)
55 {
56 #if ENABLE(SHADOW_DOM)
57     if (!document)
58         return RuntimeEnabledFeatures::shadowDOMEnabled();
59     return document->contextFeatures()->isEnabled(document, ShadowDOM, RuntimeEnabledFeatures::shadowDOMEnabled());
60 #else
61     UNUSED_PARAM(document);
62     return false;
63 #endif
64 }
65
66 bool ContextFeatures::styleScopedEnabled(Document* document)
67 {
68 #if ENABLE(STYLE_SCOPED)
69     if (!document)
70         return RuntimeEnabledFeatures::styleScopedEnabled();
71     return document->contextFeatures()->isEnabled(document, StyleScoped, RuntimeEnabledFeatures::styleScopedEnabled());
72 #else
73     UNUSED_PARAM(document);
74     return false;
75 #endif
76 }
77
78 bool ContextFeatures::pagePopupEnabled(Document* document)
79 {
80 #if ENABLE(PAGE_POPUP)
81     if (!document)
82         return false;
83     return document->contextFeatures()->isEnabled(document, PagePopup, false);
84 #else
85     UNUSED_PARAM(document);
86     return false;
87 #endif
88 }
89
90 void provideContextFeaturesTo(Page* page, ContextFeaturesClient* client)
91 {
92     RefCountedSupplement<Page, ContextFeatures>::provideTo(page, ContextFeatures::supplementName(), ContextFeatures::create(client));
93 }
94
95 void provideContextFeaturesToDocumentFrom(Document* document, Page* page)
96 {
97     ContextFeatures* provided = static_cast<ContextFeatures*>(RefCountedSupplement<Page, ContextFeatures>::from(page, ContextFeatures::supplementName()));
98     if (!provided)
99         return;
100     document->setContextFeatures(provided);
101 }
102
103 }