src/third_party/WebKit/Source/core/dom/ContextFeatures.cpp

   1 /*
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   6  * met:
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   8  *     * Redistributions of source code must retain the above copyright
   9  * notice, this list of conditions and the following disclaimer.
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  11  * contributors may be used to endorse or promote products derived from
  12  * this software without specific prior written permission.
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  14  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  15  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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  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
  36 PassOwnPtr<ContextFeaturesClient> ContextFeaturesClient::empty()
  37 {
  38     return adoptPtr(new ContextFeaturesClient());
  39 }
  40
  41 const char* ContextFeatures::supplementName()
  42 {
  43     return "ContextFeatures";
  44 }
  45
  46 ContextFeatures* ContextFeatures::defaultSwitch()
  47 {
  48 #if ENABLE(OILPAN)
  49     DEFINE_STATIC_LOCAL(Persistent<ContextFeatures>, instance, (ContextFeatures::create(ContextFeaturesClient::empty())));
  50 #else
  51     DEFINE_STATIC_REF(ContextFeatures, instance, (ContextFeatures::create(ContextFeaturesClient::empty())));
  52 #endif
  53     return instance;
  54 }
  55
  56 bool ContextFeatures::dialogElementEnabled(Document* document)
  57 {
  58     if (!document)
  59         return RuntimeEnabledFeatures::dialogElementEnabled();
  60     return document->contextFeatures().isEnabled(document, DialogElement, RuntimeEnabledFeatures::dialogElementEnabled());
  61 }
  62
  63 bool ContextFeatures::styleScopedEnabled(Document* document)
  64 {
  65     if (!document)
  66         return RuntimeEnabledFeatures::styleScopedEnabled();
  67     return document->contextFeatures().isEnabled(document, StyleScoped, RuntimeEnabledFeatures::styleScopedEnabled());
  68 }
  69
  70 bool ContextFeatures::pagePopupEnabled(Document* document)
  71 {
  72     if (!document)
  73         return false;
  74     return document->contextFeatures().isEnabled(document, PagePopup, false);
  75 }
  76
  77 bool ContextFeatures::mutationEventsEnabled(Document* document)
  78 {
  79     ASSERT(document);
  80     if (!document)
  81         return true;
  82     return document->contextFeatures().isEnabled(document, MutationEvents, true);
  83 }
  84
  85 bool ContextFeatures::pushStateEnabled(Document* document)
  86 {
  87     return document->contextFeatures().isEnabled(document, PushState, true);
  88 }
  89
  90 void provideContextFeaturesTo(Page& page, PassOwnPtr<ContextFeaturesClient> client)
  91 {
  92     ContextFeatures::SupplementType::provideTo(page, ContextFeatures::supplementName(), ContextFeatures::create(client));
  93 }
  94
  95 void provideContextFeaturesToDocumentFrom(Document& document, Page& page)
  96 {
  97     ContextFeatures* provided = static_cast<ContextFeatures*>(ContextFeatures::SupplementType::from(page, ContextFeatures::supplementName()));
  98     if (!provided)
  99         return;
 100     document.setContextFeatures(*provided);
 101 }
 102
 103 }