bool StorageArea::canAccessStorage(LocalFrame* frame)
{
if (!frame || !frame->page())
return false;
// LocalFrameLifecycleObserver is used to safely keep the cached
// reference to the LocalFrame. Should the LocalFrame die before
// this StorageArea does, that cached reference will be cleared.
if (this->frame() == frame)
return m_canAccessStorageCachedResult;
StorageNamespaceController* controller = StorageNamespaceController::from(frame->page());
if (!controller)
return false;
bool result = controller->getStorageClient()->canAccessStorage(frame, m_storageType);
// Move attention to the new LocalFrame.
LocalFrameLifecycleObserver::setContext(frame);
m_canAccessStorageCachedResult = result;
return result;
}
bool StorageArea::canAccessStorage(LocalFrame* frame) {
if (!frame || !frame->page())
return false;
// Should the LocalFrame die before this StorageArea does,
// that cached reference will be cleared.
if (m_frameUsedForCanAccessStorage == frame)
return m_canAccessStorageCachedResult;
StorageNamespaceController* controller =
StorageNamespaceController::from(frame->page());
if (!controller)
return false;
bool result =
controller->getStorageClient()->canAccessStorage(frame, m_storageType);
// Move attention to the new LocalFrame.
m_frameUsedForCanAccessStorage = frame;
m_canAccessStorageCachedResult = result;
return result;
}