// Copyright (c) 2011 Marshall A. Greenblatt. All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * 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. // * Neither the name of Google Inc. nor the name Chromium Embedded // Framework nor the names of its contributors may be used to endorse // or promote products derived from this software without specific prior // written permission. // // 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 // OWNER 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. // // --------------------------------------------------------------------------- // // The contents of this file must follow a specific format in order to // support the CEF translator tool. See the translator.README.txt file in the // tools directory for more information. // #ifndef CEF_INCLUDE_CEF_STREAM_H_ #define CEF_INCLUDE_CEF_STREAM_H_ #include "include/cef_base.h" /// // Interface the client can implement to provide a custom stream reader. The // methods of this class may be called on any thread. /// /*--cef(source=client)--*/ class CefReadHandler : public virtual CefBase { public: /// // Read raw binary data. /// /*--cef()--*/ virtual size_t Read(void* ptr, size_t size, size_t n) =0; /// // Seek to the specified offset position. |whence| may be any one of // SEEK_CUR, SEEK_END or SEEK_SET. Return zero on success and non-zero on // failure. /// /*--cef()--*/ virtual int Seek(int64 offset, int whence) =0; /// // Return the current offset position. /// /*--cef()--*/ virtual int64 Tell() =0; /// // Return non-zero if at end of file. /// /*--cef()--*/ virtual int Eof() =0; }; /// // Class used to read data from a stream. The methods of this class may be // called on any thread. /// /*--cef(source=library)--*/ class CefStreamReader : public virtual CefBase { public: /// // Create a new CefStreamReader object from a file. /// /*--cef()--*/ static CefRefPtr<CefStreamReader> CreateForFile(const CefString& fileName); /// // Create a new CefStreamReader object from data. /// /*--cef()--*/ static CefRefPtr<CefStreamReader> CreateForData(void* data, size_t size); /// // Create a new CefStreamReader object from a custom handler. /// /*--cef()--*/ static CefRefPtr<CefStreamReader> CreateForHandler( CefRefPtr<CefReadHandler> handler); /// // Read raw binary data. /// /*--cef()--*/ virtual size_t Read(void* ptr, size_t size, size_t n) =0; /// // Seek to the specified offset position. |whence| may be any one of // SEEK_CUR, SEEK_END or SEEK_SET. Returns zero on success and non-zero on // failure. /// /*--cef()--*/ virtual int Seek(int64 offset, int whence) =0; /// // Return the current offset position. /// /*--cef()--*/ virtual int64 Tell() =0; /// // Return non-zero if at end of file. /// /*--cef()--*/ virtual int Eof() =0; }; /// // Interface the client can implement to provide a custom stream writer. The // methods of this class may be called on any thread. /// /*--cef(source=client)--*/ class CefWriteHandler : public virtual CefBase { public: /// // Write raw binary data. /// /*--cef()--*/ virtual size_t Write(const void* ptr, size_t size, size_t n) =0; /// // Seek to the specified offset position. |whence| may be any one of // SEEK_CUR, SEEK_END or SEEK_SET. Return zero on success and non-zero on // failure. /// /*--cef()--*/ virtual int Seek(int64 offset, int whence) =0; /// // Return the current offset position. /// /*--cef()--*/ virtual int64 Tell() =0; /// // Flush the stream. /// /*--cef()--*/ virtual int Flush() =0; }; /// // Class used to write data to a stream. The methods of this class may be called // on any thread. /// /*--cef(source=library)--*/ class CefStreamWriter : public virtual CefBase { public: /// // Create a new CefStreamWriter object for a file. /// /*--cef()--*/ static CefRefPtr<CefStreamWriter> CreateForFile(const CefString& fileName); /// // Create a new CefStreamWriter object for a custom handler. /// /*--cef()--*/ static CefRefPtr<CefStreamWriter> CreateForHandler( CefRefPtr<CefWriteHandler> handler); /// // Write raw binary data. /// /*--cef()--*/ virtual size_t Write(const void* ptr, size_t size, size_t n) =0; /// // Seek to the specified offset position. |whence| may be any one of // SEEK_CUR, SEEK_END or SEEK_SET. Returns zero on success and non-zero on // failure. /// /*--cef()--*/ virtual int Seek(int64 offset, int whence) =0; /// // Return the current offset position. /// /*--cef()--*/ virtual int64 Tell() =0; /// // Flush the stream. /// /*--cef()--*/ virtual int Flush() =0; }; #endif // CEF_INCLUDE_CEF_STREAM_H_