15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2011 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef CHROME_FRAME_STREAM_IMPL_H_ 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define CHROME_FRAME_STREAM_IMPL_H_ 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <atlbase.h> 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <atlcom.h> 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/win/scoped_comptr.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// A generic base class for IStream implementation. If provided 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// with a delegate, it delegated calls to it otherwise can be 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// used a as a base class for an IStream implementation. 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class StreamImpl : public IStream { 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) StreamImpl() {} 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void Initialize(IStream* delegate); 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) STDMETHOD(Write)(const void * buffer, ULONG size, ULONG* size_written); 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) STDMETHOD(Read)(void* pv, ULONG cb, ULONG* read); 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) STDMETHOD(Seek)(LARGE_INTEGER move, DWORD origin, ULARGE_INTEGER* new_pos); 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) STDMETHOD(SetSize)(ULARGE_INTEGER new_size); 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) STDMETHOD(CopyTo)(IStream* stream, ULARGE_INTEGER cb, ULARGE_INTEGER* read, 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ULARGE_INTEGER* written); 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) STDMETHOD(Commit)(DWORD flags); 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) STDMETHOD(Revert)(); 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) STDMETHOD(LockRegion)(ULARGE_INTEGER offset, ULARGE_INTEGER cb, 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DWORD type); 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) STDMETHOD(UnlockRegion)(ULARGE_INTEGER offset, ULARGE_INTEGER cb, 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DWORD type); 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) STDMETHOD(Stat)(STATSTG* statstg, DWORD flag); 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) STDMETHOD(Clone)(IStream** stream); 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) protected: 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::win::ScopedComPtr<IStream> delegate_; 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(StreamImpl); 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // CHROME_FRAME_STREAM_IMPL_H_ 45