1 // Copyright 2022 The PDFium Authors 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CORE_FXCRT_CFX_READ_ONLY_STRING_STREAM_H_ 6 #define CORE_FXCRT_CFX_READ_ONLY_STRING_STREAM_H_ 7 8 #include "core/fxcrt/bytestring.h" 9 #include "core/fxcrt/fx_stream.h" 10 #include "core/fxcrt/retain_ptr.h" 11 12 class CFX_ReadOnlySpanStream; 13 14 class CFX_ReadOnlyStringStream final : public IFX_SeekableReadStream { 15 public: 16 CONSTRUCT_VIA_MAKE_RETAIN; 17 18 // IFX_SeekableReadStream: 19 FX_FILESIZE GetSize() override; 20 bool ReadBlockAtOffset(pdfium::span<uint8_t> buffer, 21 FX_FILESIZE offset) override; 22 23 private: 24 explicit CFX_ReadOnlyStringStream(ByteString data); 25 ~CFX_ReadOnlyStringStream() override; 26 27 const ByteString data_; 28 const RetainPtr<CFX_ReadOnlySpanStream> stream_; 29 }; 30 31 #endif // CORE_FXCRT_CFX_READ_ONLY_STRING_STREAM_H_ 32