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 "core/dom/Document.h"
31 #include "core/page/Page.h"
32 #include "platform/RuntimeEnabledFeatures.h"
33
34 namespace blink {
35
empty()36 PassOwnPtr<ContextFeaturesClient> ContextFeaturesClient::empty()
37 {
38 return adoptPtr(new ContextFeaturesClient());
39 }
40
supplementName()41 const char* ContextFeatures::supplementName()
42 {
43 return "ContextFeatures";
44 }
45
defaultSwitch()46 ContextFeatures* ContextFeatures::defaultSwitch()
47 {
48 DEFINE_STATIC_REF_WILL_BE_PERSISTENT(ContextFeatures, instance, (ContextFeatures::create(ContextFeaturesClient::empty())));
49 return instance;
50 }
51
pagePopupEnabled(Document * document)52 bool ContextFeatures::pagePopupEnabled(Document* document)
53 {
54 if (!document)
55 return false;
56 return document->contextFeatures().isEnabled(document, PagePopup, false);
57 }
58
mutationEventsEnabled(Document * document)59 bool ContextFeatures::mutationEventsEnabled(Document* document)
60 {
61 ASSERT(document);
62 if (!document)
63 return true;
64 return document->contextFeatures().isEnabled(document, MutationEvents, true);
65 }
66
pushStateEnabled(Document * document)67 bool ContextFeatures::pushStateEnabled(Document* document)
68 {
69 return document->contextFeatures().isEnabled(document, PushState, true);
70 }
71
provideContextFeaturesTo(Page & page,PassOwnPtr<ContextFeaturesClient> client)72 void provideContextFeaturesTo(Page& page, PassOwnPtr<ContextFeaturesClient> client)
73 {
74 ContextFeatures::SupplementType::provideTo(page, ContextFeatures::supplementName(), ContextFeatures::create(client));
75 }
76
provideContextFeaturesToDocumentFrom(Document & document,Page & page)77 void provideContextFeaturesToDocumentFrom(Document& document, Page& page)
78 {
79 ContextFeatures* provided = static_cast<ContextFeatures*>(ContextFeatures::SupplementType::from(page, ContextFeatures::supplementName()));
80 if (!provided)
81 return;
82 document.setContextFeatures(*provided);
83 }
84
85 }
86