MediaKeyStatusMap.cpp [plain text]
#include "config.h"
#include "MediaKeyStatusMap.h"
#if ENABLE(ENCRYPTED_MEDIA)
#include "JSMediaKeyStatusMap.h"
#include "MediaKeySession.h"
#include "SharedBuffer.h"
namespace WebCore {
MediaKeyStatusMap::MediaKeyStatusMap(const MediaKeySession& session)
: m_session(&session)
{
}
MediaKeyStatusMap::~MediaKeyStatusMap() = default;
void MediaKeyStatusMap::detachSession()
{
m_session = nullptr;
}
unsigned long MediaKeyStatusMap::size()
{
if (!m_session)
return 0;
return m_session->statuses().size();
}
static bool keyIdsMatch(const SharedBuffer& a, const BufferSource& b)
{
auto length = a.size();
if (!length || length != b.length())
return false;
return !std::memcmp(a.data(), b.data(), length);
}
bool MediaKeyStatusMap::has(const BufferSource& keyId)
{
if (!m_session)
return false;
auto& statuses = m_session->statuses();
return std::any_of(statuses.begin(), statuses.end(),
[&keyId] (auto& it) { return keyIdsMatch(it.first, keyId); });
}
JSC::JSValue MediaKeyStatusMap::get(JSC::ExecState& state, const BufferSource& keyId)
{
if (!m_session)
return JSC::jsUndefined();
auto& statuses = m_session->statuses();
auto it = std::find_if(statuses.begin(), statuses.end(),
[&keyId] (auto& it) { return keyIdsMatch(it.first, keyId); });
if (it == statuses.end())
return JSC::jsUndefined();
return convertEnumerationToJS(state, it->second);
}
MediaKeyStatusMap::Iterator::Iterator(MediaKeyStatusMap& map)
: m_map(map)
{
}
std::optional<WTF::KeyValuePair<BufferSource::VariantType, MediaKeyStatus>> MediaKeyStatusMap::Iterator::next()
{
if (!m_map->m_session)
return std::nullopt;
auto& statuses = m_map->m_session->statuses();
if (m_index >= statuses.size())
return std::nullopt;
auto& pair = statuses[m_index++];
auto buffer = ArrayBuffer::create(pair.first->data(), pair.first->size());
return WTF::KeyValuePair<BufferSource::VariantType, MediaKeyStatus> { RefPtr<ArrayBuffer>(WTFMove(buffer)), pair.second };
}
}
#endif // ENABLE(ENCRYPTED_MEDIA)