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 "core/dom/ContextFeatures.h"
29
30 #include "RuntimeEnabledFeatures.h"
31 #include "core/dom/Document.h"
32 #include "core/page/Page.h"
33
34 namespace WebCore {
35
empty()36 ContextFeaturesClient* ContextFeaturesClient::empty()
37 {
38 DEFINE_STATIC_LOCAL(ContextFeaturesClient, empty, ());
39 return ∅
40 }
41
supplementName()42 const char* ContextFeatures::supplementName()
43 {
44 return "ContextFeatures";
45 }
46
defaultSwitch()47 ContextFeatures* ContextFeatures::defaultSwitch()
48 {
49 DEFINE_STATIC_REF(ContextFeatures, instance, (ContextFeatures::create(ContextFeaturesClient::empty())));
50 return instance;
51 }
52
dialogElementEnabled(Document * document)53 bool ContextFeatures::dialogElementEnabled(Document* document)
54 {
55 if (!document)
56 return RuntimeEnabledFeatures::dialogElementEnabled();
57 return document->contextFeatures()->isEnabled(document, DialogElement, RuntimeEnabledFeatures::dialogElementEnabled());
58 }
59
styleScopedEnabled(Document * document)60 bool ContextFeatures::styleScopedEnabled(Document* document)
61 {
62 if (!document)
63 return RuntimeEnabledFeatures::styleScopedEnabled();
64 return document->contextFeatures()->isEnabled(document, StyleScoped, RuntimeEnabledFeatures::styleScopedEnabled());
65 }
66
pagePopupEnabled(Document * document)67 bool ContextFeatures::pagePopupEnabled(Document* document)
68 {
69 if (!document)
70 return false;
71 return document->contextFeatures()->isEnabled(document, PagePopup, false);
72 }
73
mutationEventsEnabled(Document * document)74 bool ContextFeatures::mutationEventsEnabled(Document* document)
75 {
76 ASSERT(document);
77 if (!document)
78 return true;
79 return document->contextFeatures()->isEnabled(document, MutationEvents, true);
80 }
81
pushStateEnabled(Document * document)82 bool ContextFeatures::pushStateEnabled(Document* document)
83 {
84 return document->contextFeatures()->isEnabled(document, PushState, true);
85 }
86
provideContextFeaturesTo(Page * page,ContextFeaturesClient * client)87 void provideContextFeaturesTo(Page* page, ContextFeaturesClient* client)
88 {
89 RefCountedSupplement<Page, ContextFeatures>::provideTo(page, ContextFeatures::supplementName(), ContextFeatures::create(client));
90 }
91
provideContextFeaturesToDocumentFrom(Document * document,Page * page)92 void provideContextFeaturesToDocumentFrom(Document* document, Page* page)
93 {
94 ContextFeatures* provided = static_cast<ContextFeatures*>(RefCountedSupplement<Page, ContextFeatures>::from(page, ContextFeatures::supplementName()));
95 if (!provided)
96 return;
97 document->setContextFeatures(provided);
98 }
99
100 }
101