1 files changed, 112 insertions, 0 deletions
diff --git a/Source/WebCore/Modules/encryptedmedia/MediaKeyStatusMap.cpp b/Source/WebCore/Modules/encryptedmedia/MediaKeyStatusMap.cpp
new file mode 100644
index 000000000..fc0451eed
--- /dev/null
+++ b/Source/WebCore/Modules/encryptedmedia/MediaKeyStatusMap.cpp
@@ -0,0 +1,112 @@
+/*
+ * Copyright (C) 2016 Metrological Group B.V.
+ * Copyright (C) 2016 Igalia S.L.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above
+ *    copyright notice, this list of conditions and the following
+ *    disclaimer in the documentation and/or other materials provided
+ *    with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#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 };
+}
+
+} // namespace WebCore
+
+#endif // ENABLE(ENCRYPTED_MEDIA)