120 lines
3.6 KiB
C++
120 lines
3.6 KiB
C++
//////////////////////////////////////////////////////////////////////
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//
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// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
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// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED
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// TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
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// PARTICULAR PURPOSE.
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//
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// Copyright (C) 2003 Microsoft Corporation. All rights reserved.
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//
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// TextEditSink.cpp
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//
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// ITfTextEditSink implementation.
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//
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//////////////////////////////////////////////////////////////////////
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#include "globals.h"
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#include "TextService.h"
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//+---------------------------------------------------------------------------
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//
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// OnEndEdit
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//
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// Called by the system whenever anyone releases a write-access document lock.
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//----------------------------------------------------------------------------
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STDAPI CExtentMonitorTextService::OnEndEdit(ITfContext *pContext, TfEditCookie ecReadOnly, ITfEditRecord *pEditRecord)
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{
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DumpExtent(pContext, DE_EVENTID_ONENDEDIT);
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return S_OK;
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}
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//+---------------------------------------------------------------------------
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//
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// OnLayoutChange
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//
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// Called by the system whenever anyone releases a write-access document lock.
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//----------------------------------------------------------------------------
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STDAPI CExtentMonitorTextService::OnLayoutChange(ITfContext *pContext, TfLayoutCode lcode, ITfContextView *pView)
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{
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DumpExtent(pContext, DE_EVENTID_ONLAYOUTCHANGE);
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return S_OK;
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}
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//+---------------------------------------------------------------------------
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//
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// _InitTextEditSink
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//
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// Init a text edit sink on the topmost context of the document.
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// Always release any previous sink.
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//----------------------------------------------------------------------------
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BOOL CExtentMonitorTextService::_InitTextEditSink(ITfDocumentMgr *pDocMgr)
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{
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ITfSource *pSource;
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BOOL fRet;
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// clear out any previous sink first
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if (_pTextEditSinkContext)
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{
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if (_pTextEditSinkContext->QueryInterface(IID_ITfSource, (void **)&pSource) == S_OK)
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{
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if (_dwTextEditSinkCookie != TF_INVALID_COOKIE)
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pSource->UnadviseSink(_dwTextEditSinkCookie);
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if (_dwTextLayoutSinkCookie != TF_INVALID_COOKIE)
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pSource->UnadviseSink(_dwTextLayoutSinkCookie);
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pSource->Release();
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}
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_pTextEditSinkContext->Release();
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_pTextEditSinkContext = NULL;
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_dwTextEditSinkCookie = TF_INVALID_COOKIE;
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_dwTextLayoutSinkCookie = TF_INVALID_COOKIE;
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}
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if (pDocMgr == NULL)
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return TRUE; // caller just wanted to clear the previous sink
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// setup a new sink advised to the topmost context of the document
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if (pDocMgr->GetBase(&_pTextEditSinkContext) != S_OK)
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return FALSE;
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if (_pTextEditSinkContext == NULL)
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return TRUE; // empty document, no sink possible
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fRet = FALSE;
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if (_pTextEditSinkContext->QueryInterface(IID_ITfSource, (void **)&pSource) == S_OK)
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{
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if (pSource->AdviseSink(IID_ITfTextEditSink, (ITfTextEditSink *)this, &_dwTextEditSinkCookie) == S_OK)
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{
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fRet = TRUE;
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}
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else
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{
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_dwTextEditSinkCookie = TF_INVALID_COOKIE;
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}
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if (pSource->AdviseSink(IID_ITfTextLayoutSink, (ITfTextLayoutSink *)this, &_dwTextLayoutSinkCookie) == S_OK)
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{
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fRet = TRUE;
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}
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else
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{
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_dwTextLayoutSinkCookie = TF_INVALID_COOKIE;
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}
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pSource->Release();
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}
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if (fRet == FALSE)
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{
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_pTextEditSinkContext->Release();
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_pTextEditSinkContext = NULL;
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}
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return fRet;
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}
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