1 files changed, 64 insertions, 0 deletions
diff --git a/Source/WebCore/dom/TextDecoder.h b/Source/WebCore/dom/TextDecoder.h
new file mode 100644
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+++ b/Source/WebCore/dom/TextDecoder.h
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+/*
+ * Copyright (C) 2016 Apple Inc. All rights reserved.
+ *
+ * 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 APPLE INC. ``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 APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * 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.
+ */
+
+#pragma once
+
+#include "BufferSource.h"
+#include "ExceptionOr.h"
+#include "TextEncoding.h"
+#include <wtf/Optional.h>
+#include <wtf/Ref.h>
+#include <wtf/RefCounted.h>
+#include <wtf/text/WTFString.h>
+
+namespace WebCore {
+
+class TextDecoder : public RefCounted<TextDecoder> {
+public:
+    struct Options {
+        bool fatal { false };
+        bool ignoreBOM { false };
+    };
+    struct DecodeOptions {
+        bool stream { false };
+    };
+    
+    static ExceptionOr<Ref<TextDecoder>> create(const String& label, Options);
+
+    String encoding() const;
+    bool fatal() const { return m_options.fatal; }
+    bool ignoreBOM() const { return m_options.ignoreBOM; }
+    ExceptionOr<String> decode(std::optional<BufferSource::VariantType>, DecodeOptions);
+
+private:
+    String prependBOMIfNecessary(const String&);
+    void ignoreBOMIfNecessary(const uint8_t*& data, size_t& length);
+    TextDecoder(const char*, Options);
+    TextEncoding m_textEncoding;
+    Options m_options;
+    bool m_hasDecoded { false };
+    Vector<uint8_t> m_buffer;
+};
+
+}