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

   1 /*
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   6  * met:
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   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.
  13  *
  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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  24  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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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 ContextFeaturesClient* ContextFeaturesClient::empty()
  37 {
  38     DEFINE_STATIC_LOCAL(ContextFeaturesClient, empty, ());
  39     return &empty;
  40 }
  41
  42 const char* ContextFeatures::supplementName()
  43 {
  44     return "ContextFeatures";
  45 }
  46
  47 ContextFeatures* ContextFeatures::defaultSwitch()
  48 {
  49     DEFINE_STATIC_REF(ContextFeatures, instance, (ContextFeatures::create(ContextFeaturesClient::empty())));
  50     return instance;
  51 }
  52
  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
  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
  67 bool ContextFeatures::pagePopupEnabled(Document* document)
  68 {
  69     if (!document)
  70         return false;
  71     return document->contextFeatures()->isEnabled(document, PagePopup, false);
  72 }
  73
  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
  82 bool ContextFeatures::pushStateEnabled(Document* document)
  83 {
  84     return document->contextFeatures()->isEnabled(document, PushState, true);
  85 }
  86
  87 void provideContextFeaturesTo(Page* page, ContextFeaturesClient* client)
  88 {
  89     RefCountedSupplement<Page, ContextFeatures>::provideTo(page, ContextFeatures::supplementName(), ContextFeatures::create(client));
  90 }
  91
  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 }