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-rw-r--r--layout/style/StreamLoader.h64
1 files changed, 64 insertions, 0 deletions
diff --git a/layout/style/StreamLoader.h b/layout/style/StreamLoader.h
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+++ b/layout/style/StreamLoader.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_css_StreamLoader_h
+#define mozilla_css_StreamLoader_h
+
+#include "nsIStreamListener.h"
+#include "nsString.h"
+#include "mozilla/css/SheetLoadData.h"
+#include "mozilla/Assertions.h"
+
+class nsIInputStream;
+
+namespace mozilla {
+namespace css {
+
+class StreamLoader : public nsIStreamListener {
+ public:
+ NS_DECL_ISUPPORTS
+ NS_DECL_NSIREQUESTOBSERVER
+ NS_DECL_NSISTREAMLISTENER
+
+ explicit StreamLoader(SheetLoadData&);
+
+ void ChannelOpenFailed(nsresult rv) {
+#ifdef NIGHTLY_BUILD
+ mChannelOpenFailed = true;
+#endif
+ }
+
+ private:
+ virtual ~StreamLoader();
+
+ /**
+ * callback method used for ReadSegments
+ */
+ static nsresult WriteSegmentFun(nsIInputStream*, void*, const char*, uint32_t,
+ uint32_t, uint32_t*);
+
+ void HandleBOM();
+
+ RefPtr<SheetLoadData> mSheetLoadData;
+ nsresult mStatus;
+ Maybe<const Encoding*> mEncodingFromBOM;
+
+ // We store the initial three bytes of the stream into mBOMBytes, and then
+ // use that buffer to detect a BOM. We then shift any non-BOM bytes into
+ // mBytes, and store all subsequent data in that buffer.
+ nsCString mBytes;
+ nsAutoCStringN<3> mBOMBytes;
+
+#ifdef NIGHTLY_BUILD
+ bool mChannelOpenFailed = false;
+ bool mOnStopRequestCalled = false;
+#endif
+};
+
+} // namespace css
+} // namespace mozilla
+
+#endif // mozilla_css_StreamLoader_h