1 files changed, 214 insertions, 0 deletions
diff --git a/WebCore/platform/text/brew/TextCodecBrew.cpp b/WebCore/platform/text/brew/TextCodecBrew.cpp
new file mode 100644
index 0000000..1f32298
--- /dev/null
+++ b/WebCore/platform/text/brew/TextCodecBrew.cpp
@@ -0,0 +1,214 @@
+/*
+ * Copyright (C) 2010 Company 100, 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 COMPUTER, 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 COMPUTER, INC. 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 "TextCodecBrew.h"
+
+#include "AEEAppGen.h"
+#include "AEEICharsetConv.h"
+#include "NotImplemented.h"
+#include "PlatformString.h"
+#include <wtf/Assertions.h>
+#include <wtf/text/CString.h>
+
+namespace WebCore {
+
+// FIXME: Not sure if there are Brew MP devices which use big endian.
+const char* WebCore::TextCodecBrew::m_internalEncodingName = "UTF-16LE";
+
+static PassOwnPtr<TextCodec> newTextCodecBrew(const TextEncoding& encoding, const void*)
+{
+    return new TextCodecBrew(encoding);
+}
+
+void TextCodecBrew::registerBaseEncodingNames(EncodingNameRegistrar registrar)
+{
+    registrar("UTF-8", "UTF-8");
+}
+
+void TextCodecBrew::registerBaseCodecs(TextCodecRegistrar registrar)
+{
+    registrar("UTF-8", newTextCodecBrew, 0);
+}
+
+void TextCodecBrew::registerExtendedEncodingNames(EncodingNameRegistrar registrar)
+{
+    // FIXME: Not sure how to enumerate all available encodings.
+    notImplemented();
+}
+
+void TextCodecBrew::registerExtendedCodecs(TextCodecRegistrar registrar)
+{
+    notImplemented();
+}
+
+TextCodecBrew::TextCodecBrew(const TextEncoding& encoding)
+    : m_charsetConverter(0)
+    , m_encoding(encoding)
+    , m_numBufferedBytes(0)
+{
+    String format = String::format("%s>%s", encoding.name(), m_internalEncodingName);
+
+    IShell* shell = reinterpret_cast<AEEApplet*>(GETAPPINSTANCE())->m_pIShell;
+    AEECLSID classID = ISHELL_GetHandler(shell, AEEIID_ICharsetConv, format.latin1().data());
+    ISHELL_CreateInstance(shell, classID, reinterpret_cast<void**>(&m_charsetConverter));
+
+    ASSERT(m_charsetConverter);
+}
+
+TextCodecBrew::~TextCodecBrew()
+{
+    if (m_charsetConverter)
+        ICharsetConv_Release(m_charsetConverter);
+}
+
+String TextCodecBrew::decode(const char* bytes, size_t length, bool flush, bool stopOnError, bool& sawError)
+{
+    int code = ICharsetConv_Initialize(m_charsetConverter, m_encoding.name(), m_internalEncodingName, 0);
+    ASSERT(code == AEE_SUCCESS);
+
+    Vector<UChar> result;
+    Vector<unsigned char> prefixedBytes(length);
+
+    int srcSize;
+    unsigned char* srcBegin;
+
+    if (m_numBufferedBytes) {
+        srcSize = length + m_numBufferedBytes;
+        prefixedBytes.grow(srcSize);
+        memcpy(prefixedBytes.data(), m_bufferedBytes, m_numBufferedBytes);
+        memcpy(prefixedBytes.data() + m_numBufferedBytes, bytes, length);
+
+        srcBegin = prefixedBytes.data();
+
+        // all buffered bytes are consumed now
+        m_numBufferedBytes = 0;
+    } else {
+        srcSize = length;
+        srcBegin = const_cast<unsigned char*>(reinterpret_cast<const unsigned char*>(bytes));
+    }
+
+    unsigned char* src = srcBegin;
+    unsigned char* srcEnd = srcBegin + srcSize;
+
+    Vector<UChar> dstBuffer(srcSize);
+
+    while (src < srcEnd) {
+        int numCharsConverted;
+        unsigned char* dstBegin = reinterpret_cast<unsigned char*>(dstBuffer.data());
+        unsigned char* dst = dstBegin;
+        int dstSize = dstBuffer.size() * sizeof(UChar);
+
+        code = ICharsetConv_CharsetConvert(m_charsetConverter, &src, &srcSize, &dst, &dstSize, &numCharsConverted);
+        ASSERT(code != AEE_ENOSUCH);
+
+        if (code == AEE_EBUFFERTOOSMALL) {
+            // Increase the buffer and try it again.
+            dstBuffer.grow(dstBuffer.size() * 2);
+            continue;
+        }
+
+        if (code == AEE_EBADITEM) {
+            sawError = true;
+            if (stopOnError) {
+                result.append(L'?');
+                break;
+            }
+
+            src++;
+        }
+
+        if (code == AEE_EINCOMPLETEITEM) {
+            if (flush) {
+                LOG_ERROR("Partial bytes at end of input while flush requested.");
+                sawError = true;
+                return String();
+            }
+
+            m_numBufferedBytes = srcEnd - src;
+            memcpy(m_bufferedBytes, src, m_numBufferedBytes);
+            break;
+        }
+
+        int numChars = (dst - dstBegin) / sizeof(UChar);
+        if (numChars > 0)
+            result.append(dstBuffer.data(), numChars);
+    }
+
+    return String::adopt(result);
+}
+
+CString TextCodecBrew::encode(const UChar* characters, size_t length, UnencodableHandling handling)
+{
+    if (!length)
+        return "";
+
+    unsigned int replacementCharacter = '?';
+
+    // FIXME: Impossible to handle EntitiesForUnencodables or URLEncodedEntitiesForUnencodables with ICharsetConv.
+    int code = ICharsetConv_Initialize(m_charsetConverter, m_internalEncodingName, m_encoding.name(), replacementCharacter);
+    ASSERT(code == AEE_SUCCESS);
+
+    Vector<char> result;
+
+    int srcSize = length * sizeof(UChar);
+    unsigned char* srcBegin = const_cast<unsigned char*>(reinterpret_cast<const unsigned char*>(characters));
+    unsigned char* src = srcBegin;
+    unsigned char* srcEnd = srcBegin + srcSize;
+
+    Vector<unsigned char> dstBuffer(length * sizeof(UChar));
+
+    while (src < srcEnd) {
+        int numCharsConverted;
+        unsigned char* dstBegin = dstBuffer.data();
+        unsigned char* dst = dstBegin;
+        int dstSize = dstBuffer.size();
+
+        code = ICharsetConv_CharsetConvert(m_charsetConverter, &src, &srcSize, &dst, &dstSize, &numCharsConverted);
+        ASSERT(code != AEE_EINCOMPLETEITEM);
+
+        if (code == AEE_ENOSUCH) {
+            LOG_ERROR("Conversion error, Code=%d", code);
+            return CString();
+        }
+
+        if (code == AEE_EBUFFERTOOSMALL) {
+            // Increase the buffer and try it again.
+            dstBuffer.grow(dstBuffer.size() * 2);
+            continue;
+        }
+
+        if (code == AEE_EBADITEM)
+            src += sizeof(UChar); // Skip the invalid character
+
+        int numBytes = dst - dstBegin;
+        if (numBytes > 0)
+            result.append(dstBuffer.data(), numBytes);
+    }
+
+    return CString(result.data(), result.size());
+}
+
+} // namespace WebCore