DOMWindowCaches.cpp [plain text]
#include "config.h"
#include "DOMWindowCaches.h"
#include "CacheStorageProvider.h"
#include "DOMCacheStorage.h"
#include "DOMWindow.h"
#include "Document.h"
#include "Frame.h"
#include "Page.h"
namespace WebCore {
DOMWindowCaches::DOMWindowCaches(DOMWindow* window)
: DOMWindowProperty(window->frame())
{
}
const char* DOMWindowCaches::supplementName()
{
return "DOMWindowCaches";
}
DOMWindowCaches* DOMWindowCaches::from(DOMWindow* window)
{
auto* supplement = static_cast<DOMWindowCaches*>(Supplement<DOMWindow>::from(window, supplementName()));
if (!supplement) {
auto newSupplement = std::make_unique<DOMWindowCaches>(window);
supplement = newSupplement.get();
provideTo(window, supplementName(), WTFMove(newSupplement));
}
return supplement;
}
ExceptionOr<DOMCacheStorage*> DOMWindowCaches::caches(ScriptExecutionContext& context, DOMWindow& window)
{
if (downcast<Document>(context).isSandboxed(SandboxOrigin))
return Exception { SecurityError, "Cache storage is disabled because the context is sandboxed and lacks the 'allow-same-origin' flag" };
if (!window.isCurrentlyDisplayedInFrame())
return nullptr;
return DOMWindowCaches::from(&window)->caches();
}
DOMCacheStorage* DOMWindowCaches::caches() const
{
ASSERT(frame());
ASSERT(frame()->document());
if (!m_caches && frame()->page())
m_caches = DOMCacheStorage::create(*frame()->document(), frame()->page()->cacheStorageProvider().createCacheStorageConnection(frame()->page()->sessionID()));
return m_caches.get();
}
}