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windows-nt/Source/XPSP1/NT/windows/oleacc/msaatext/docwrap.cpp

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2020-09-26 03:20:57 -05:00
// DocWrapImpl.cpp : Implementation of CDocWrap
#include "stdafx.h"
#include "MSAAText.h"
#include "DocWrap.h"
#include <list_dl.h>
#include "VersionInfo.h"
#include <msctf.h>
#include <msctfp.h>
#define INITGUID
#include <msctfx.h>
#include <tStr.h>
#include <fwd_macros.h> // currently in the DocModel\inc dir... adjust appropriately if porting...
/*
* IDoc - the variant of the ITextStoreACP we're using (ACP/Anchor)
* ISink - the corresponding Sink interface (ACP/Anchor)
*
* ICicDoc - the Cicero doc interface, which extends IDoc
* ICicSink - the Cicero sink interface, which extends ISink
*
* CDocWrap - the document wrapper class, implements ICicDoc (which includes IDoc)
* CSinkWrap - the sink wrapper class, implements ICicSink (which includes ISink)
*
*/
class BasicDocTraitsAnchor
{
public:
typedef struct ITextStoreAnchor IDoc;
typedef struct ITextStoreAnchorSink ISink;
typedef struct ITextStoreAnchor ICicDoc;
typedef struct ITextStoreAnchorServices ICicSink;
typedef class CDocWrapAnchor CDocWrap;
typedef class CSinkWrapAnchor CSinkWrap;
typedef struct ITextStoreAnchorEx IDocEx;
typedef struct ITextStoreSinkAnchorEx ISinkEx;
typedef IAnchor * PosType;
};
class BasicDocTraitsACP
{
public:
typedef struct ITextStoreACP IDoc;
typedef struct ITextStoreACPSink ISink;
typedef struct ITextStoreACP ICicDoc;
typedef struct ITextStoreACPServices ICicSink;
typedef class CDocWrapACP CDocWrap;
typedef class CSinkWrapACP CSinkWrap;
typedef struct ITextStoreACPEx IDocEx;
typedef struct ITextStoreACPSinkEx ISinkEx;
typedef LONG PosType;
};
// DocWrapExcept contains exception wrapper classes for
// some of the above interfaces...
#include "DocWrapExcept.h"
// Add the appropriate exception wrappers to the set of
// doc traits.
class DocTraitsAnchor: public BasicDocTraitsAnchor
{
public:
typedef SEHWrapPtr_TextStoreAnchor IDocSEHWrap;
};
class DocTraitsACP: public BasicDocTraitsACP
{
public:
typedef SEHWrapPtr_TextStoreACP IDocSEHWrap;
};
/////////////////////////////////////////////////////////////////
// Create an instance of a local non-externally-createable class.
// Just a wrapper for CComObject::CreateInstance, but also AddRef's so that
// the returned object has a ref of 1.
template< class C >
HRESULT CreateLocalInstance( C ** p )
{
CComObject< C > * p2 = NULL;
HRESULT hr = CComObject< C >::CreateInstance( & p2 );
if( FAILED( hr ) )
{
TraceErrorHR( hr, TEXT("CreateLocalInstance") );
return hr;
}
if( p2 == NULL || hr != S_OK )
{
TraceErrorHR( hr, TEXT("CreateLocalInstance returned NULL") );
return E_UNEXPECTED;
}
p2->AddRef();
*p = p2;
return S_OK;
}
// Check hr and condition - return appropriate error if not S_OK and ! cond.
#define CHECK_HR_RETURN( hr, cond ) /**/ \
if( (hr) != S_OK ) \
return FAILED( (hr) ) ? (hr) : E_UNEXPECTED; \
if( (hr) == S_OK && ! ( cond ) ) \
return E_UNEXPECTED;
template < class T >
inline
void SafeReleaseClear( T * & ptr )
{
if( ptr )
{
ptr->Release();
ptr = NULL;
}
}
class CPrivateAddRef
{
public:
CPrivateAddRef( long &rc ) : m_refcount( rc ) { m_refcount++; }
~CPrivateAddRef() { m_refcount--; }
private:
long &m_refcount;
};
class _declspec(uuid("{54D5D291-D8D7-4870-ADE1-331D86FD9430}")) IWrapMgr: public IUnknown
{
public:
virtual void STDMETHODCALLTYPE SetDoc( IUnknown * pDoc ) = 0;
virtual HRESULT STDMETHODCALLTYPE CreateWrappedDoc( IUnknown ** ppDoc ) = 0;
};
template < class DocTraits >
class ATL_NO_VTABLE CWrapMgr :
public CComObjectRootEx< CComSingleThreadModel >,
public IWrapMgr
{
public:
DECLARE_PROTECT_FINAL_CONSTRUCT()
BEGIN_COM_MAP( CWrapMgr< DocTraits > )
COM_INTERFACE_ENTRY( IWrapMgr )
END_COM_MAP()
private:
// Ptr to the original document.
// Each DocWrapper also has a copy of this ptr - but only we have a refcount on it.
// DocTraits::IDoc * m_pDoc;
DocTraits::IDocSEHWrap m_pDoc;
// Used to remember who requested a sync lock...
DocTraits::CDocWrap * m_pLockRequestedBy;
BOOL m_fInSyncLockRequest;
// Used to remember currently requested lock (ro vs rw)
DWORD m_dwPendingLock;
// Our sink - called by the doc
DocTraits::CSinkWrap * m_pSinkWrap;
// Current sink event mask - all client sink masks or'd together.
DWORD m_dwSinkMask;
BOOL m_fSinkActive;
public:
// List of DocWraps (one per client)
List_dl< DocTraits::CDocWrap > m_DocWraps;
LONG m_lIterationRefCount;
//
// Ctor, Dtor...
//
CWrapMgr()
: m_pDoc( NULL ),
m_pSinkWrap( NULL ),
m_dwSinkMask( 0 ),
m_fSinkActive( FALSE ),
m_pLockRequestedBy( NULL ),
m_fInSyncLockRequest( FALSE ),
m_dwPendingLock( 0 ),
m_lIterationRefCount( 0 )
{
// Done.
TraceInfo( TEXT("WrapMgr ctor") );
}
~CWrapMgr()
{
TraceInfo( TEXT("WrapMgr dtor") );
AssertMsg( m_pDoc, TEXT("CWrapMgr::SetDoc never called?") );
m_pDoc->Release();
Assert( m_DocWraps.empty() );
Assert( m_pSinkWrap == NULL );
Assert( m_dwSinkMask == 0 );
}
//
// IWrapMgr interface - used by the DocWrap holder to give us a doc and ask for wrappers for it...
//
void STDMETHODCALLTYPE SetDoc( IUnknown * pDoc )
{
_SetDoc( static_cast< DocTraits::IDoc * >( pDoc ) );
}
HRESULT STDMETHODCALLTYPE CreateWrappedDoc( IUnknown ** ppDoc )
{
return _CreateWrappedDoc( reinterpret_cast< DocTraits::IDoc ** >( ppDoc ) );
}
void RemoveDeadDocs()
{
for( Iter_dl < DocTraits::CDocWrap > i ( m_DocWraps ) ; ! i.AtEnd() ; )
{
Iter_dl < DocTraits::CDocWrap > dead = i;
i++;
if (dead->m_bUnadvised && m_lIterationRefCount == 0)
m_DocWraps.remove( dead );
}
}
//
// Called by DocWrap, to tell us when it's been released, and to get us (the wrapper manager)
// to handle a call that affects other wrappers on the same doc - advise/unadvise and lock calls.
//
void DocWrap_NotifyDisconnect( DocTraits::CDocWrap * pFrom )
{
// A DocWrap has been released by a client and is going away...
// TODO - if using locks, check pFrom for lock, if it has it, release, broadcast relase.
// - how can this scenario occur?
// - doc is released in callback. Weird, but valid?
}
HRESULT DocWrap_HandleRequestLock( DocTraits::CDocWrap * pFrom, DWORD dwLockFlags, HRESULT * phrSession )
{
// Other clients may request a lock while it's being held by someone else, but the
// current holder should not request a lock.
// (This can happen when client1 is holding a lock, and issues an editing operation.
// The wrapper broadcasts a OnTextChange event to other clients, and they may request locks.)
AssertMsg( m_pLockRequestedBy != pFrom, TEXT("Lock owner re-request held lock? (Reentrancy?)") );
if( dwLockFlags == 0 ||
dwLockFlags & ~ ( TS_LF_SYNC | TS_LF_READ | TS_LF_READWRITE ) ) // check that only these bits present
{
AssertMsg( FALSE, TEXT("Bad lock flags") );
return E_INVALIDARG;
}
if( dwLockFlags & TS_LF_SYNC )
{
// Can't process a SYNC call while someone else is holding the lock...
if( m_pLockRequestedBy )
{
return E_FAIL;
}
// Sync lock - can just pass through - need to set up m_pLockRequestedBy so that the
// sink can pass it onto the correct client.
m_pLockRequestedBy = pFrom;
m_fInSyncLockRequest = TRUE;
HRESULT hr = m_pDoc->RequestLock( dwLockFlags, phrSession );
m_fInSyncLockRequest = FALSE;
m_pLockRequestedBy = NULL;
return hr;
} // sync lock
else
{
// if async lock, update/upgrade the wrap's pending lock mask if necessary...
// This test (which assumes that dwLockFlags != 0) upgrades to r/w if necessary.
// TODO - should this update only be done conditionally if RequestLock succeeds?
// (or no upgrade necessary?)
Assert( dwLockFlags != 0 );
if( pFrom->m_dwPendingLock != TS_LF_READWRITE )
pFrom->m_dwPendingLock = dwLockFlags;
if( m_pLockRequestedBy )
{
// someone else is currently holding the lock.
// All we have to do is update the doc's PendingLock flags (see above) - they will
// be picked up and handled by the loop in Handle_OnLockGranted when the current
// lock holder returns.
// Nothing else to do here.
// But send it on the doc anyway if it's the same person
if ( m_pLockRequestedBy == pFrom )
{
return m_pDoc->RequestLock( m_dwPendingLock, phrSession );
}
return S_OK;
}
else
{
// We don't have a lock yet.
// Check our current request, if any, and if necessary, request a write,
// even if we've already requested a read.
// Update combined mask if necessary...
DWORD dwNewLock = m_dwPendingLock;
// Calculate required lock...
if( dwNewLock != TS_LF_READWRITE )
dwNewLock = dwLockFlags;
HRESULT hr = E_FAIL;
// Do we need to request a new lock/upgrade?
if( dwNewLock != m_dwPendingLock )
{
// May get an immediate response even for an async request, so need to set this up
// event if not a sync request...
m_pLockRequestedBy = pFrom;
DWORD OldPendingLock = m_dwPendingLock;
m_dwPendingLock = dwNewLock;
HRESULT hrOut = E_FAIL;
hr = m_pDoc->RequestLock( m_dwPendingLock, & hrOut );
m_pLockRequestedBy = NULL;
if( hr != S_OK )
{
// After all that, the request failed...
// Revert to previous pending lock...
m_dwPendingLock = OldPendingLock;
// fall out...
}
else
{
// Regardless of fail/success, copy the outgoing hr.
// Clearing of the pending flags is done in OnLockgranted, not here.
// Shouldn't get this for an async request...
Assert( hrOut != TS_E_SYNCHRONOUS );
*phrSession = hrOut;
}
}
else
{
// Our existing pending lock covers this request - success.
*phrSession = TS_S_ASYNC;
hr = S_OK;
}
return hr;
}
} // async lock
}
HRESULT DocWrap_UpdateSubscription()
{
Assert( ( m_dwSinkMask & ~ TS_AS_ALL_SINKS ) == 0 );
// If there are no active sinks, then SinkMask should be 0.
Assert( m_fSinkActive || m_dwSinkMask == 0 );
// Work out required mask - by or'ing masks of all doc's sinks...
DWORD NewMask = 0;
BOOL NewfSinkActive = FALSE;
for( Iter_dl< DocTraits::CDocWrap > i ( m_DocWraps ) ; ! i.AtEnd() ; i++ )
{
if( i->m_Sink.m_pSink != NULL )
{
Assert( ( i->m_Sink.m_dwMask & ~ TS_AS_ALL_SINKS ) == 0 );
NewMask |= i->m_Sink.m_dwMask;
NewfSinkActive = TRUE;
}
}
Assert( ( NewMask & ~ TS_AS_ALL_SINKS ) == 0 );
// If there are no active sinks, then NewMask should be 0.
Assert( NewfSinkActive || NewMask == 0 );
// Tricky bit:
// NewMask==0 does not mean that there's no sinks - some may have
// dwMask == 0 to receive LockGranted calls.
// So to check if the status has changed, we need to take whether
// there are any active sinks (not just the masks) into account.
if( NewfSinkActive == m_fSinkActive && NewMask == m_dwSinkMask )
{
// No change - nothing to do.
return S_OK;
}
// Three possibilities:
// (a) free to unregister,
// (b) need to register
// (c) need to update existing registration.
// We handle (b) and (c) as the same case.
if( ! NewfSinkActive )
{
// No sinks - can unregister...
m_fSinkActive = FALSE;
m_dwSinkMask = 0;
if( ! m_pSinkWrap )
{
Assert( FALSE );
// Odd - where did our sink wrap go - we didn't unregister it yet, so it should
// still be around...
// (Possible that server pre-emptively released us - so not an error.)
}
else
{
// Don't do anything else with m_pSinkWrap - the doc should release it.
HRESULT hr = m_pDoc->UnadviseSink( static_cast< DocTraits::ICicSink * >( m_pSinkWrap ) );
// shouldn't fail...
Assert( hr == S_OK );
// Doc should have released the sink (which would have called us back to NULL out
// m_pSinkWrap...)
Assert( m_pSinkWrap == NULL );
}
return S_OK;
}
else
{
// Update existing / add new...
// If we already had an existing sink, there should be a sinkwrap...
// (unless doc let it go prematurely...)
Assert( ! m_fSinkActive || m_pSinkWrap );
BOOL NeedRelease = FALSE;
if( ! m_pSinkWrap )
{
HRESULT hr = CreateLocalInstance( & m_pSinkWrap );
if( hr != S_OK )
return hr;
m_pSinkWrap->Init( this, & m_DocWraps );
// After doing the Advise, release our ref on the sink, so that only
// the doc holds a ref and controls its liftetime.
// We still keep a pointer, but it's a "weak reference" - if the
// sink goes away (because the doc releases its reference), the sink
// notifies us so we can NULL-out the ptr. (see SinkWrap_NotifyDisconnect)
NeedRelease = TRUE;
}
// Always try advising with the Cicero sink first - if that
// doesn't work, fall back to the ITextStoreACP one.
//
// (Use of static_cast is necessary here to avoid ambiguity over
// which IUnknown we convert to - the ICicSink one, or the
// IServiceProvider one. We want the ICicSink one, to match the
// IID passed in.)
HRESULT hr = m_pDoc->AdviseSink( __uuidof( DocTraits::ICicSink ), static_cast< DocTraits::ICicSink * >( m_pSinkWrap ), NewMask );
if( hr != S_OK )
{
hr = m_pDoc->AdviseSink( __uuidof( DocTraits::ISink ), static_cast< DocTraits::ISink * >( m_pSinkWrap ), NewMask );
}
if( NeedRelease )
{
m_pSinkWrap->Release();
}
if( hr == S_OK )
{
m_fSinkActive = TRUE;
m_dwSinkMask = NewMask;
}
else
{
AssertMsg( FALSE, TEXT("AdviseSink failed") );
}
return hr;
}
}
void DocWrap_NotifyRevoke()
{
// Send OnDisconnect to any SinkEx sinks,
CPrivateAddRef MyAddRef(m_lIterationRefCount);
for( Iter_dl< DocTraits::CDocWrap > i ( m_DocWraps ) ; ! i.AtEnd() ; i++ )
{
// Is this the SinkExt sink?
if( i->m_Sink.m_iid == __uuidof( DocTraits::ISinkEx ) )
{
DocTraits::ISinkEx * pSink = static_cast< DocTraits::ISinkEx * >( i->m_Sink.m_pSink );
if ( pSink )
pSink->OnDisconnect();
}
}
for( Iter_dl < DocTraits::CDocWrap > j ( m_DocWraps ) ; ! j.AtEnd() ; )
{
Iter_dl < DocTraits::CDocWrap > DocToDelete = j;
j++;
m_DocWraps.remove( DocToDelete );
DocToDelete->Release();
}
}
//
// Called by SinkWrap to let us know when its been released...
//
void SinkWrap_NotifyDisconnect()
{
// The sink has been released by the application - it's now deleteing itself,
// so we NULL-out our weak reference to it. (If we need another one in future,
// we'll create a new one.)
// Clear our sinks to reflect this...
for( Iter_dl< DocTraits::CDocWrap > i ( m_DocWraps ) ; ! i.AtEnd() ; i++ )
{
i->m_Sink.ClearAndRelease();
}
m_pSinkWrap = NULL;
}
HRESULT SinkWrap_HandleOnLockGranted ( DWORD dwLockFlags )
{
// Is this servicing a sync or async request?
Assert( ( dwLockFlags & ~ ( TS_LF_SYNC | TS_LF_READ | TS_LF_READWRITE ) ) == 0 );
CPrivateAddRef MyAddRef(m_lIterationRefCount);
if( m_fInSyncLockRequest )
{
// Sync lock - just pass it straight through to whoever requested it...
Assert( dwLockFlags & TS_LF_SYNC );
Assert( m_pLockRequestedBy && m_pLockRequestedBy->m_Sink.m_pSink );
if( ! m_pLockRequestedBy || ! m_pLockRequestedBy->m_Sink.m_pSink )
return E_UNEXPECTED;
DocTraits::ISink * pSink = static_cast< DocTraits::ISink * > ( m_pLockRequestedBy->m_Sink.m_pSink );
HRESULT hr = pSink->OnLockGranted( dwLockFlags );
return hr;
}
else
{
// Async lock - hand it out to whoever wanted it...
Assert( ! ( dwLockFlags & TS_LF_SYNC ) );
// If we're waiting for a r/w lock, the lock granted should be r/w too...
Assert( ! ( m_dwPendingLock & TS_LF_READWRITE ) || ( dwLockFlags & TS_LF_READWRITE ) );
// Clear the pending lock, since we're now servicing them...
m_dwPendingLock = 0;
// Keep looking through the docs, servicing locks. We loop because some docs may
// request locks while another holds the lock, so we have to come back an service them.
// When we loop through all docs without seeing any locks, then we know all locks
// have been serviced.
//
// If this is a read lock, then we can only service read locks now - we'll have to
// ask for a separate write lock later if we need one.
BOOL fNeedWriteLock = FALSE;
for( ; ; )
{
BOOL fWorkDone = FALSE;
// Forward to all clients who had requested a lock...
for( Iter_dl< DocTraits::CDocWrap > i ( m_DocWraps ) ; ! i.AtEnd() ; i++ )
{
// Is the mask we've been granted sufficient for the client's request (if any)?
DWORD ReqdLock = i->m_dwPendingLock;
if( ReqdLock )
{
if( ( ReqdLock | dwLockFlags ) == dwLockFlags )
{
// tell the doc wrapper that it is in OnLockGranted and what kind of lock it has
i->m_dwGrantedLock = ReqdLock;
// Clear the mask...
i->m_dwPendingLock = 0;
DocTraits::ISink * pSink = static_cast< DocTraits::ISink * > ( i->m_Sink.m_pSink );
// How about...
// (a) also call Next before callback.
// (b) store current value of iter in mgr - in doc's release, it can check, and bump if necessary;
pSink->OnLockGranted( ReqdLock );
// tell the doc wrapper that it is no longer in OnLockGranted
i->m_dwGrantedLock = 0;
fWorkDone = TRUE;
}
else
{
// This client wants a write lock, but we've only got a read lock...
fNeedWriteLock = TRUE;
}
}
}
// If we didn't need to handle any lock requests the last time around the loop,
// then our work is done. (If we did handle any lock requests, we should go back
// and re-check all docs, in case one of them requested a lock while one of the
// locks we serviced was holding it.)
if( ! fWorkDone )
break;
}
if( fNeedWriteLock )
{
// TODO - need to find a way to handle this. Can we call the doc's RequestLock again now?
AssertMsg( FALSE, TEXT("Write lock requested while holding read lock - not implemented yet") );
}
// All done!
return S_OK;
}
}
private:
//
// Internal functions...
//
void _SetDoc( DocTraits::IDoc * pDoc )
{
AssertMsg( ! m_pDoc, TEXT("CWrapMgr::SetDoc should be called once when m_pDoc is NULL") );
m_pDoc = pDoc;
m_pDoc->AddRef();
}
HRESULT _CreateWrappedDoc( DocTraits::IDoc ** ppDoc )
{
*ppDoc = NULL;
// Create a doc wrapper...
DocTraits::CDocWrap * pCDocWrap;
HRESULT hr = CreateLocalInstance( & pCDocWrap );
CHECK_HR_RETURN( hr, pCDocWrap != NULL );
pCDocWrap->Init( this, m_pDoc );
// Add to our list...
m_DocWraps.AddToHead( pCDocWrap );
// And return it...
*ppDoc = pCDocWrap;
return S_OK;
}
};
struct SinkInfo
{
IUnknown * m_pSink;
IID m_iid;
DWORD m_dwMask;
IUnknown * m_pCanonicalUnk; // IUnknown used for identity comparisons
void Validate()
{
#ifdef DEBUG
if( m_pSink )
{
Assert( m_pCanonicalUnk != NULL );
// Check that mask contains only valid bits
Assert( ( m_dwMask & ~ TS_AS_ALL_SINKS ) == 0 );
}
else
{
Assert( m_pCanonicalUnk == NULL );
Assert( m_dwMask == 0 );
}
#endif
}
SinkInfo()
: m_pSink( NULL ),
m_pCanonicalUnk( NULL ),
m_dwMask( 0 )
{
Validate();
// Done.
}
~SinkInfo()
{
Validate();
AssertMsg( m_pSink == NULL && m_pCanonicalUnk == NULL, TEXT("Sink not cleared" ) );
}
void Set( IUnknown * pSink, REFIID iid, DWORD dwMask, IUnknown * pCanonicalUnk )
{
Validate();
AssertMsg( m_pSink == NULL, TEXT("Set() sink that's already in use" ) );
m_pSink = pSink;
m_pSink->AddRef();
m_iid = iid;
m_dwMask = dwMask;
m_pCanonicalUnk = pCanonicalUnk;
m_pCanonicalUnk->AddRef();
Validate();
}
void UpdateMask( DWORD dwMask )
{
Validate();
AssertMsg( m_pSink != NULL, TEXT("UpdateMask() on empty sink") );
m_dwMask = dwMask;
Validate();
}
void ClearAndRelease()
{
Validate();
if( m_pSink )
{
m_pSink->Release();
m_pSink = NULL;
m_pCanonicalUnk->Release();
m_pCanonicalUnk = NULL;
m_dwMask = 0;
}
}
};
// Fwd. decl for the sink-wrap class, needed since we grant it frienship in the
// DocWrap class...
template< class DocTraits >
class CSinkWrapBase;
//
// CDocWrapBase
//
// - Base from which Anchor and ACP document wrappers are derived.
//
// This class contains ACP/Anchor-neutral wrapping code - anything that is
// ACP/Anchor-specific is handled in the derived ..ACP or ...Anchor class
// instead.
//
// This class derives from the full Cicero doc interface (DocTraits::ICicDoc -
// which is a typedef for ITfTextStore[Anchor]), which in turn includes the
// ITextStoreACP doc interface. Currently the Cicero interface doesn't add any
// additional methods.
//
// This class is also on a list of document wrappers - so we're derived from
// Link_dl. (The list is managed by the wrapper manager.) The list will be a
// list of derived classes, so the type of the link is of the derived class
// (DocTraits::CDocWrap - which is a typedef for CDocWrapACP/Anchor), instead
// of being based on this class.
// (At the moment we don't actually use any of the derived-class functionality,
// but may do so in future.)
// {B5DCFDAF-FBAD-4ef6-A5F8-E7CC0833A3B1}
static const GUID DOCWRAP_IMPLID = { 0xb5dcfdaf, 0xfbad, 0x4ef6, { 0xa5, 0xf8, 0xe7, 0xcc, 0x8, 0x33, 0xa3, 0xb1 } };
template< class _DocTraits >
class ATL_NO_VTABLE CDocWrapBase :
public CComObjectRootEx< CComSingleThreadModel >,
public Link_dl< _DocTraits::CDocWrap >,
public _DocTraits::ICicDoc,
public _DocTraits::IDocEx,
public IClonableWrapper,
public IInternalDocWrap,
public ICoCreateLocally,
public CVersionInfo,
public IServiceProvider
{
public:
// This typedef makes the DocTraits type visible in this and in the
// Anchor/ACP-specific derived classes. (Otherwise, as a template
// parameter in this class, it would not be available to them.)
typedef _DocTraits DocTraits;
DECLARE_PROTECT_FINAL_CONSTRUCT()
BEGIN_COM_MAP( CDocWrapBase< DocTraits > )
COM_INTERFACE_ENTRY( DocTraits::IDoc )
COM_INTERFACE_ENTRY( DocTraits::ICicDoc )
COM_INTERFACE_ENTRY( DocTraits::IDocEx )
COM_INTERFACE_ENTRY( IClonableWrapper )
COM_INTERFACE_ENTRY( IInternalDocWrap )
COM_INTERFACE_ENTRY( ICoCreateLocally )
COM_INTERFACE_ENTRY( IVersionInfo )
COM_INTERFACE_ENTRY( IServiceProvider )
END_COM_MAP()
private:
// WrapMgr uses the Link_dl base when adding this to its list.
friend CWrapMgr< DocTraits >;
// Used by WrapMgr to track what type of lock was requested.
DWORD m_dwPendingLock;
// Used by WrapMgr to track what type of lock granted.
DWORD m_dwGrantedLock;
// SinkWrapBase - and its derived Anchor/ACP-specific class - uses the list
// and the members of SinkInfo when broadcasting
friend CSinkWrapBase< DocTraits >;
friend DocTraits::CSinkWrap;
protected:
// Each doc can have a corresponding sink:
SinkInfo m_Sink;
// Link back to the wrapper manager - so we can tell it when we're going
// away. We also get it to handle calls which affect other wrappers on the
// same document - especially sinks and locks.
CWrapMgr< DocTraits > * m_pMgr;
// Used by derived classes to forward calls to doc...
// DocTraits::IDoc * m_pDoc;
DocTraits::IDocSEHWrap m_pDoc;
// TEMP BUGBUG - used to access the attribute extentions for the moment...
DocTraits::IDocEx * m_pDocEx;
bool m_bUnadvised;
HRESULT STDMETHODCALLTYPE VerifyLock( DWORD dwLockFlags)
{
IMETHOD( VerifyLock );
if ( m_dwGrantedLock )
{
// We have a lock, make sure it's the right kind
if ( (dwLockFlags & TS_LF_READWRITE) == m_dwGrantedLock || (dwLockFlags & TS_LF_READWRITE) == TS_LF_READ )
return S_OK;
}
TraceDebug( TEXT("Lock rejected") );
return S_FALSE;
}
// This macro just forwards the call directly to the doc...
#define DocWrap_FORWARD( fname, c, params ) /**/ \
HRESULT STDMETHODCALLTYPE fname AS_DECL( c, params ) \
{\
IMETHOD( fname );\
return m_pDoc-> fname AS_CALL( c, params ) ;\
}
// This macro just forwards the call directly to the doc after checking for the correct lock
#define DocWrap_FORWARD_READLOCK( fname, c, params ) /**/ \
HRESULT STDMETHODCALLTYPE fname AS_DECL( c, params ) \
{\
IMETHOD( fname );\
if ( VerifyLock( TS_LF_READ ) == S_FALSE )\
return TS_E_NOLOCK;\
return m_pDoc-> fname AS_CALL( c, params ) ;\
}
#define DocWrap_FORWARDEXT( fname, c, params ) /**/ \
HRESULT STDMETHODCALLTYPE fname AS_DECL( c, params ) \
{\
IMETHOD( fname );\
if( ! m_pDocEx )\
return E_NOTIMPL;\
return m_pDocEx-> fname AS_CALL( c, params ) ;\
}
// This slightly more complicated one (!) forwards to the doc,
// and if the call succeeds, then broadcasts to all sinks except the one
// for this document.
// So if one client does a SetText, that SetText goes through, and
// all other clietns with callbacks for the TS_AS_TEXT_CHANGE event will
// also get an OnTextChange event.
#define DocWrap_FORWARD_AND_SINK( fname, c, params, mask, callsink ) /**/ \
HRESULT STDMETHODCALLTYPE fname AS_DECL( c, params )\
{\
IMETHOD( fname );\
Assert( m_pMgr );\
if ( VerifyLock( TS_LF_READWRITE ) == S_FALSE )\
return TS_E_NOLOCK;\
m_pMgr->RemoveDeadDocs();\
CPrivateAddRef MyAddRef(m_pMgr->m_lIterationRefCount);\
HRESULT hr = m_pDoc-> fname AS_CALL( c, params );\
if( hr != S_OK )\
{\
TraceDebugHR( hr, TEXT("failed") );\
return hr;\
}\
for( Iter_dl < DocTraits::CDocWrap > i ( m_pMgr->m_DocWraps ) ; ! i.AtEnd() ; i++ )\
{\
DocTraits::ISink * pSink = static_cast< DocTraits::ISink * >( i->m_Sink.m_pSink );\
DWORD dwMask = i->m_Sink.m_dwMask;\
DocTraits::CDocWrap * pTheDoc = i;\
if( pTheDoc != this && pSink && ( dwMask & mask ) )\
{\
callsink ;\
}\
}\
return S_OK ;\
}
public:
//
// Ctor, Dtor, and initialization...
//
CDocWrapBase()
: m_pDoc( NULL ),
m_pMgr( NULL ),
m_dwPendingLock( 0 ),
m_dwGrantedLock( 0 ),
m_pDocEx( NULL ),
m_bUnadvised( false )
{
}
~CDocWrapBase()
{
AssertMsg( m_pMgr != NULL, TEXT("CDocWrapBase::Init never got called?") );
// Clear up sink...
if( m_Sink.m_pSink )
{
m_Sink.ClearAndRelease();
// Manager will unadvise, if we were the last to go...
m_pMgr->DocWrap_UpdateSubscription();
}
m_pMgr->DocWrap_NotifyDisconnect( static_cast< DocTraits::CDocWrap * >( this ) );
m_pMgr->Release();
if( m_pDocEx )
m_pDocEx->Release();
}
void Init( CWrapMgr< DocTraits > * pMgr, DocTraits::IDoc * pDoc )
{
AssertMsg( m_pMgr == NULL, TEXT("CDocWrapBase::Init should only be called once when m_pMgr is NULL") );
m_pMgr = pMgr;
m_pMgr->AddRef();
m_pDoc = pDoc;
AddRef(); // Keep our own ref count so it dosn't go away until we remove from the list
CVersionInfo::Add( DOCWRAP_IMPLID, 1, 0, L"Microsoft MSAA Wrapper 1.0", L"na", NULL);
m_pDoc->QueryInterface( __uuidof( DocTraits::IDocEx ), (void **) & m_pDocEx );
}
//
// Implementation of ACP/Anchor-neutral methods...
// These ones require special handling...
//
HRESULT STDMETHODCALLTYPE AdviseSink( REFIID riid, IUnknown *punk, DWORD dwMask )
{
IMETHOD( AdviseSink );
Assert( m_pMgr );
if( punk == NULL )
{
return E_INVALIDARG;
}
// Accept the following sinks:
// * Original ITextStoreACPSink,
// * Cicero sink (ITextStoreACP + Cicero extentions)
// * ITextStoreACPSinkEx sink (ITextStoreACP + OnDisconnect method)
if( riid != __uuidof( DocTraits::ISink )
&& riid != __uuidof( DocTraits::ICicSink )
&& riid != __uuidof( DocTraits::ISinkEx ) )
{
return E_NOINTERFACE;
}
// check mask contains only valid bits
if( dwMask & ~ ( TS_AS_ALL_SINKS ) )
{
return E_INVALIDARG;
}
// Get canonical unknown (for interface comparing...)
IUnknown * pCanonicalUnk = NULL;
HRESULT hr = punk->QueryInterface( IID_IUnknown, (void **) & pCanonicalUnk );
if( hr != S_OK || pCanonicalUnk == NULL )
{
return E_FAIL;
}
// If this is first, set it...
if( m_Sink.m_pSink == NULL )
{
// Allow the doc to work out the update cumulative mask and re-advise the doc if necessary...
m_Sink.Set( punk, riid, dwMask, pCanonicalUnk );
// Manager will scan through all sink masks, and re-Advise if necessary.
hr = m_pMgr->DocWrap_UpdateSubscription();
if( hr != S_OK )
{
// advising didn't work, or something else went wrong - revert back to empty sink...
m_Sink.ClearAndRelease();
}
}
else
{
// Not the first time - check if we're updating the existing mask...
if( pCanonicalUnk != m_Sink.m_pCanonicalUnk )
{
// Attempt to register a different sink - error...
hr = CONNECT_E_ADVISELIMIT;
}
else
{
// Remember the old mask - if the update doesn't work, revert back to this.
DWORD OldMask = m_Sink.m_dwMask;
m_Sink.UpdateMask( dwMask );
// Manager will scan through all dwMasks, and re-Advise if necessary.
hr = m_pMgr->DocWrap_UpdateSubscription();
if( hr != S_OK )
m_Sink.UpdateMask( OldMask );
}
}
pCanonicalUnk->Release();
return hr;
}
HRESULT STDMETHODCALLTYPE UnadviseSink( IUnknown *punk )
{
IMETHOD( UnadviseSink );
Assert( m_pMgr );
if( punk == NULL )
{
return E_POINTER;
}
// Get canonical unknown (for interface comparing...)
IUnknown * pCanonicalUnk = NULL;
HRESULT hr = punk->QueryInterface( IID_IUnknown, (void **) & pCanonicalUnk );
if( hr != S_OK || pCanonicalUnk == NULL )
{
return E_FAIL;
}
if( pCanonicalUnk != m_Sink.m_pCanonicalUnk )
{
// Sink doesn't match!
return E_INVALIDARG;
}
m_Sink.ClearAndRelease();
// Manager will scan through all dwMasks, and re-Advise if necessary.
hr = m_pMgr->DocWrap_UpdateSubscription();
// Not much we can do if the update fails - but even if it does fail,
// we want to disconnect this sink, and not fail the Unadvise.
Assert( hr == S_OK );
pCanonicalUnk->Release();
m_bUnadvised = true;
return S_OK; // NOT hr, since this should always succeed.
}
HRESULT STDMETHODCALLTYPE RequestLock( DWORD dwLockFlags, HRESULT * phrSession )
{
IMETHOD( RequestLock );
Assert( m_pMgr );
// The cast here is safe, since we'll only be used as a derived class
DocTraits::CDocWrap * pThisAsDerived = static_cast< DocTraits::CDocWrap * >( this );
return m_pMgr->DocWrap_HandleRequestLock( pThisAsDerived, dwLockFlags, phrSession );
}
//
// These Anchor/ACP-neutral methods can just be forwarded directly to the real doc...
//
DocWrap_FORWARD( GetStatus, 1, ( TS_STATUS *, pdcs ) )
DocWrap_FORWARD_READLOCK( QueryInsert, 5, ( DocTraits::PosType, InsertStart,
DocTraits::PosType, InsertEnd,
ULONG, cch,
DocTraits::PosType *, ppaInsertStart,
DocTraits::PosType *, ppaInsertEnd ) )
DocWrap_FORWARD_READLOCK( QueryInsertEmbedded, 3, ( const GUID *, pguidService,
const FORMATETC *, pFormatEtc,
BOOL *, pfInsertable ) )
DocWrap_FORWARD( GetScreenExt, 2, ( TsViewCookie, vcView,
RECT *, prc ) )
DocWrap_FORWARD( GetWnd, 2, ( TsViewCookie, vcView,
HWND *, phwnd ) )
DocWrap_FORWARD_READLOCK( GetFormattedText, 3, ( DocTraits::PosType, Start,
DocTraits::PosType, End,
IDataObject **, ppDataObject ) )
DocWrap_FORWARD_READLOCK( GetTextExt, 5, ( TsViewCookie, vcView,
DocTraits::PosType, Start,
DocTraits::PosType, End,
RECT *, prc,
BOOL *, pfClipped ) )
DocWrap_FORWARDEXT( ScrollToRect, 4, ( DocTraits::PosType, Start,
DocTraits::PosType, End,
RECT, rc,
DWORD, dwPosition ) )
DocWrap_FORWARD( GetActiveView, 1, ( TsViewCookie *, pvcView ) )
// IClonableWrapper
HRESULT STDMETHODCALLTYPE CloneNewWrapper( REFIID riid, void ** ppv )
{
IMETHOD( CloneNewWrapper );
// Just call through to CWrapMgr's CreateWrappedDoc...
Assert( m_pMgr );
IUnknown * punk;
HRESULT hr = m_pMgr->CreateWrappedDoc( & punk );
if( hr != S_OK )
return hr;
hr = punk->QueryInterface( riid, ppv );
punk->Release();
return hr;
}
// IInternalDocWrap
HRESULT STDMETHODCALLTYPE NotifyRevoke()
{
// Just pass on to the CWrapMgr...
Assert( m_pMgr );
m_pMgr->DocWrap_NotifyRevoke();
return S_OK;
}
// ICoCreateLocally
#include <Rpcdce.h>
HRESULT STDMETHODCALLTYPE CoCreateLocally (
REFCLSID rclsid,
DWORD dwClsContext,
REFIID riid,
IUnknown ** punk,
REFIID riidParam,
IUnknown * punkParam,
VARIANT varParam
)
{
IMETHOD( CoCreateLocally );
LPCTSTR pPrivs = NULL; //Pointer to handle to privilege information
HRESULT hrSec = CoQueryClientBlanket( 0, 0, 0, 0, 0, (void **)&pPrivs, 0 );
if ( hrSec != S_OK )
return hrSec;
TSTR strUser(128);
DWORD nSize = strUser.left();
if ( !GetUserName( strUser.ptr(), &nSize ) )
return E_ACCESSDENIED;
strUser.advance( nSize - 1 );
TSTR strClientUser( pPrivs );
const int nSlashPos = strClientUser.find( TEXT("\\") );
if ( nSlashPos > 0 )
strClientUser = strClientUser.substr( nSlashPos + 1, strClientUser.size() - nSlashPos );
TraceDebug( TSTR() << TEXT("Current user = ") << strUser << TEXT(", Client user = ") << strClientUser );
if ( strClientUser.compare( strUser ) != 0 )
if ( strClientUser.compare( TEXT("SYSTEM") ) != 0 )
return E_ACCESSDENIED;
HRESULT hr = CoCreateInstance(rclsid, NULL, dwClsContext, riid, (void **)punk);
if (hr != S_OK)
return hr;
CComPtr<ICoCreatedLocally> pICoCreatedLocally;
hr = (*punk)->QueryInterface(IID_ICoCreatedLocally, (void **)&pICoCreatedLocally);
if (hr != S_OK)
return hr;
hr = pICoCreatedLocally->LocalInit(m_pDoc, riidParam, punkParam, varParam);
if (hr != S_OK)
return hr;
return S_OK;
}
//
// IServiceProvider - Cicero uses this to 'drill through' to the original anchor to pull out
// internal information. Just pass it through...
//
HRESULT STDMETHODCALLTYPE QueryService( REFGUID guidService, REFIID riid, void **ppvObject )
{
IMETHOD( QueryService );
*ppvObject = NULL;
CComPtr<IServiceProvider> pISP;
HRESULT hr = m_pDoc->QueryInterface( IID_IServiceProvider, (void **) & pISP );
if( hr != S_OK || pISP == NULL )
return E_FAIL;
hr = pISP->QueryService( guidService, riid, ppvObject );
return hr;
}
};
//
// CTextStoreWrapACP - ACP version of ITextStoreACP wrapper...
//
class ATL_NO_VTABLE CDocWrapACP :
public CDocWrapBase< DocTraitsACP >
{
public:
// ITextStoreACP
DocWrap_FORWARD_READLOCK( GetSelection, 4, ( ULONG, ulIndex, ULONG, ulCount, TS_SELECTION_ACP *, pSelection, ULONG *, pcFetched ) )
DocWrap_FORWARD_READLOCK( GetText, 9, ( LONG, acpStart,
LONG, acpEnd,
WCHAR *, pchPlain,
ULONG, cchPlainReq,
ULONG *, pcchPlainRet,
TS_RUNINFO *, prgRunInfo,
ULONG, cRunInfoReq,
ULONG *, pcRunInfoRet,
LONG *, pacpNext ) )
DocWrap_FORWARD_READLOCK( GetEmbedded, 4, ( LONG, Pos, REFGUID, rguidService, REFIID, riid, IUnknown **, ppunk ) )
DocWrap_FORWARD_READLOCK( GetEndACP, 1, ( LONG *, pacp ) )
DocWrap_FORWARD_READLOCK( GetACPFromPoint, 4, ( TsViewCookie, vcView, const POINT *, ptScreen, DWORD, dwFlags, LONG *, pacp ) )
DocWrap_FORWARD( RequestSupportedAttrs, 3, ( DWORD, dwFlags,
ULONG, cFilterAttrs,
const TS_ATTRID *, paFilterAttrs ) )
DocWrap_FORWARD_READLOCK( RequestAttrsAtPosition, 4, ( DocTraits::PosType, Pos,
ULONG, cFilterAttrs,
const TS_ATTRID *, paFilterAttrs,
DWORD, dwFlags ) )
DocWrap_FORWARD_READLOCK( RequestAttrsTransitioningAtPosition,
4, ( DocTraits::PosType, Pos,
ULONG, cFilterAttrs,
const TS_ATTRID *, paFilterAttrs,
DWORD, dwFlags ) )
DocWrap_FORWARD_READLOCK( FindNextAttrTransition, 8, ( LONG, acpStart, LONG, acpEnd, ULONG, cFilterAttrs, const TS_ATTRID *, paFilterAttrs, DWORD, dwFlags, LONG *, pacpNext, BOOL *, pfFound, LONG *, plFoundOffset ) )
DocWrap_FORWARD( RetrieveRequestedAttrs, 3, ( ULONG, ulCount,
TS_ATTRVAL *, paAttrVals,
ULONG *, pcFetched ) )
DocWrap_FORWARD_AND_SINK( SetSelection, 2, ( ULONG, ulCount, const TS_SELECTION_ACP *, pSelection ),
TS_AS_SEL_CHANGE, pSink->OnSelectionChange() )
DocWrap_FORWARD_AND_SINK( SetText, 6, ( DWORD, dwFlags, LONG, acpStart, LONG, acpEnd, const WCHAR *, pchText, ULONG, cch, TS_TEXTCHANGE *, pChange ),
TS_AS_TEXT_CHANGE, pSink->OnTextChange( dwFlags, pChange ) )
DocWrap_FORWARD_AND_SINK( InsertEmbedded, 5, ( DWORD, dwFlags, LONG, acpStart, LONG, acpEnd, IDataObject *, pDataObject, TS_TEXTCHANGE *, pChange ),
TS_AS_TEXT_CHANGE, pSink->OnTextChange( dwFlags, pChange ) )
DocWrap_FORWARD_AND_SINK( InsertTextAtSelection, 6, ( DWORD, dwFlags, const WCHAR *, pchText, ULONG, cch, LONG *, pacpStart, LONG *, pacpEnd, TS_TEXTCHANGE *, pChange),
TS_AS_TEXT_CHANGE, pSink->OnTextChange( dwFlags, pChange ) )
DocWrap_FORWARD_AND_SINK( InsertEmbeddedAtSelection, 5, ( DWORD, dwFlags, IDataObject *, pDataObject, LONG *, pacpStart, LONG *, pacpEnd, TS_TEXTCHANGE *, pChange),
TS_AS_TEXT_CHANGE, pSink->OnTextChange( dwFlags, pChange ) )
};
//
// CTextStoreWrapAnchor - Anchor version of ITextStoreACP wrapper
//
class ATL_NO_VTABLE CDocWrapAnchor :
public CDocWrapBase< DocTraitsAnchor >
{
/*
// Used when generating OnTextChange events in response to InsertEmbedded.
// See forwarding macro for InsertEmbedded below...
void ProcessInsertEmbeddedOnTextChange( DocTraits::ISink * pSink, DWORD dwFlags, IAnchor * paPos )
{
// Want to send a TextChange with anchors before and after the insert position -
// we have the before position - clone and move it to get the after position.
IAnchor * pAnchorAfter = NULL;
HRESULT hr = paPos->Clone( & pAnchorAfter );
if( hr != S_OK || pAnchorAfter == NULL )
{
TraceInteropHR( hr, TEXT("IAnchor::Clone failed") );
return;
}
LONG cchShifted = 0;
hr = pAnchorAfter->Shift( 1, & cchShifted, NULL );
if( hr != S_OK || cchShifted != 1 )
{
TraceInteropHR( hr, TEXT("IAnchor::Shift failed?") );
return;
}
pSink->OnTextChange( dwFlags, paPos, pAnchorAfter );
pAnchorAfter->Release();
}
*/
public:
CDocWrapAnchor() : m_cMaxAttrs(0),
m_cAttrsTAP(0),
m_iAttrsTAP(0),
m_cAttrsTAPSize(0),
m_paAttrsTAP(NULL),
m_paAttrsSupported(NULL)
{
}
~CDocWrapAnchor()
{
ResetAttrs();
if ( m_paAttrsTAP )
{
delete [] m_paAttrsTAP;
m_paAttrsTAP = NULL;
}
if ( m_paAttrsSupported )
{
delete [] m_paAttrsSupported;
m_paAttrsSupported = NULL;
}
}
// ITextStoreAnchor
DocWrap_FORWARD_READLOCK( GetSelection, 4, ( ULONG, ulIndex, ULONG, ulCount, TS_SELECTION_ANCHOR *, pSelection, ULONG *, pcFetched ) )
DocWrap_FORWARD_READLOCK( GetText, 7, ( DWORD, dwFlags, IAnchor *, paStart, IAnchor *, paEnd, WCHAR *, pchText, ULONG, cchReq, ULONG *, pcch, BOOL, fUpdateAnchor ) )
DocWrap_FORWARD_READLOCK( GetEmbedded, 5, ( DWORD, dwFlags,
IAnchor *, Pos,
REFGUID, rguidService,
REFIID, riid,
IUnknown **, ppunk ) )
DocWrap_FORWARD_READLOCK( GetStart, 1, ( IAnchor **, ppaStart ) )
DocWrap_FORWARD_READLOCK( GetEnd, 1, ( IAnchor **, ppaEnd ) )
DocWrap_FORWARD_READLOCK( GetAnchorFromPoint, 4, ( TsViewCookie, vcView, const POINT *, ptScreen, DWORD, dwFlags, IAnchor **, ppaSite ) )
// DocWrap_FORWARD( RequestSupportedAttrs, 3, ( DWORD, dwFlags,
// ULONG, cFilterAttrs,
// const TS_ATTRID *, paFilterAttrs ) )
// DocWrap_FORWARD_READLOCK( RequestAttrsAtPosition, 4, ( DocTraits::PosType, Pos,
// ULONG, cFilterAttrs,
// const TS_ATTRID *, paFilterAttrs,
// DWORD, dwFlags ) )
// DocWrap_FORWARD_READLOCK( RequestAttrsTransitioningAtPosition,
// 4, ( DocTraits::PosType, Pos,
// ULONG, cFilterAttrs,
// const TS_ATTRID *, paFilterAttrs,
// DWORD, dwFlags ) )
// DocWrap_FORWARD_READLOCK( FindNextAttrTransition, 7, ( IAnchor *, paStart, IAnchor *, paEnd, ULONG, cFilterAttrs, const TS_ATTRID *, paFilterAttrs, DWORD, dwFlags, BOOL *, pfFound, LONG *, plFoundOffset ) )
DocWrap_FORWARD_AND_SINK( SetSelection, 2, ( ULONG, ulCount, const TS_SELECTION_ANCHOR *, pSelection ),
TS_AS_SEL_CHANGE, pSink->OnSelectionChange() )
DocWrap_FORWARD_AND_SINK( SetText, 5, ( DWORD, dwFlags, IAnchor *, paStart, IAnchor *, paEnd, const WCHAR *, pchText, ULONG, cch ),
TS_AS_TEXT_CHANGE, pSink->OnTextChange( dwFlags, paStart, paEnd ) )
DocWrap_FORWARD_AND_SINK( InsertEmbedded, 4, ( DWORD, dwFlags, IAnchor *, paStart, IAnchor *, paEnd, IDataObject *, pDataObject ),
TS_AS_TEXT_CHANGE, pSink->OnTextChange( dwFlags, paStart, paEnd ) )
DocWrap_FORWARD_AND_SINK( InsertTextAtSelection, 5, ( DWORD, dwFlags, const WCHAR *, pchText, ULONG, cch, IAnchor **, ppaStart, IAnchor **, ppaEnd ),
TS_AS_TEXT_CHANGE, pSink->OnTextChange( dwFlags, *ppaStart, *ppaEnd ) )
DocWrap_FORWARD_AND_SINK( InsertEmbeddedAtSelection, 4, ( DWORD, dwFlags, IDataObject *, pDataObject, IAnchor **, ppaStart, IAnchor **, ppaEnd ),
TS_AS_TEXT_CHANGE, pSink->OnTextChange( dwFlags, *ppaStart, *ppaEnd ) )
HRESULT STDMETHODCALLTYPE RequestSupportedAttrs ( DWORD dwFlags,
ULONG cFilterAttrs,
const TS_ATTRID * paFilterAttrs )
{
IMETHOD( RequestSupportedAttrs );
ResetAttrs();
return m_pDoc->RequestSupportedAttrs( dwFlags, cFilterAttrs, paFilterAttrs ) ;
}
HRESULT STDMETHODCALLTYPE RequestAttrsAtPosition ( DocTraits::PosType Pos,
ULONG cFilterAttrs,
const TS_ATTRID * paFilterAttrs,
DWORD dwFlags )
{
IMETHOD( RequestAttrsAtPosition );
if ( VerifyLock( TS_LF_READ ) == S_FALSE )
return TS_E_NOLOCK;
ResetAttrs();
return m_pDoc->RequestAttrsAtPosition( Pos, cFilterAttrs, paFilterAttrs, dwFlags ) ;
}
HRESULT STDMETHODCALLTYPE RequestAttrsTransitioningAtPosition ( IAnchor * paStart,
ULONG cFilterAttrs,
const TS_ATTRID * paFilterAttrs,
DWORD dwFlags )
{
IMETHOD( RequestAttrsTransitioningAtPosition );
if ( VerifyLock( TS_LF_READ ) == S_FALSE )
return TS_E_NOLOCK;
ResetAttrs();
// call through to the doc
HRESULT hr = m_pDoc->RequestAttrsTransitioningAtPosition( paStart, cFilterAttrs, paFilterAttrs, dwFlags );
if ( hr != E_NOTIMPL )
return hr;
// if the server does not support this do it ourselves
// make sure there is really something to do
if ( paStart == NULL )
return S_OK;
// make sure we can hold the attributes we find
hr = AllocateAttrs( cFilterAttrs );
if ( FAILED(hr) )
return hr;
ULONG cAlloAttrs = cFilterAttrs ? cFilterAttrs : m_cMaxAttrs;
TS_ATTRVAL * paCurrent = reinterpret_cast<TS_ATTRVAL *>( alloca( sizeof( TS_ATTRVAL ) * cAlloAttrs ) );
if ( !paCurrent )
return E_OUTOFMEMORY;
hr = GetAttr ( paStart, cFilterAttrs, paFilterAttrs, dwFlags, paCurrent);
if ( FAILED(hr) )
return hr;
LONG cchShifted;
ULONG iAttrs = 0;
TS_ATTRVAL * paComp = NULL;
CComPtr <IAnchor> paPos;
paStart->Clone( &paPos );
hr = paPos->Shift( 0, -1, &cchShifted, NULL ); // TODO fix hidden text
if ( SUCCEEDED(hr) && cchShifted == -1 )
{
paComp = reinterpret_cast<TS_ATTRVAL *>( alloca( sizeof( TS_ATTRVAL ) * cAlloAttrs ) );
if ( !paComp )
return E_OUTOFMEMORY;
hr = GetAttr ( paPos, cFilterAttrs, paFilterAttrs, dwFlags, paComp);
if ( FAILED(hr) )
return hr;
if ( dwFlags & TS_ATTR_FIND_WANT_END )
CompareAttrs ( paCurrent, paComp, cAlloAttrs, iAttrs, TRUE );
else
CompareAttrs ( paComp, paCurrent, cAlloAttrs, iAttrs, TRUE );
}
if ( !( dwFlags & TS_ATTR_FIND_WANT_VALUE ) )
{
for ( int i= 0; i < cFilterAttrs; i++ )
{
VariantClear( &m_paAttrsTAP[i].varValue );
}
}
m_cAttrsTAP = iAttrs;
return S_OK;
}
HRESULT STDMETHODCALLTYPE FindNextAttrTransition ( IAnchor * paStart,
IAnchor * paEnd,
ULONG cFilterAttrs,
const TS_ATTRID * paFilterAttrs,
DWORD dwFlags,
BOOL * pfFound,
LONG * plFoundOffset )
{
IMETHOD( FindNextAttrTransition );
if ( VerifyLock( TS_LF_READ ) == S_FALSE )
return TS_E_NOLOCK;
HRESULT hr = m_pDoc->FindNextAttrTransition( paStart, paEnd, cFilterAttrs, paFilterAttrs, dwFlags, pfFound, plFoundOffset );
if ( hr != E_NOTIMPL )
return hr;
*pfFound = FALSE;
*plFoundOffset = 0;
// if the server does not support this do it ourselves
// make sure there is really something to do
if ( paStart == NULL )
return S_OK;
// make sure we can hold the attributes we find
hr = AllocateAttrs( cFilterAttrs );
if ( FAILED(hr) )
{
TraceDebugHR( hr, TEXT("AllocateAttrs failed ") );
return hr;
}
ULONG cAlloAttrs = cFilterAttrs ? cFilterAttrs : m_cMaxAttrs;
TS_ATTRVAL * paCurrent = reinterpret_cast<TS_ATTRVAL *>( alloca( sizeof( TS_ATTRVAL ) * cAlloAttrs ) );
TS_ATTRVAL * paNext = reinterpret_cast<TS_ATTRVAL *>( alloca( sizeof( TS_ATTRVAL ) * cAlloAttrs ) );
if ( !paCurrent || !paNext )
return E_OUTOFMEMORY;
hr = GetAttr ( paStart, cFilterAttrs, paFilterAttrs, dwFlags, paCurrent);
if ( FAILED(hr) )
{
TraceDebugHR( hr, TEXT("Current GetAttr failed ") );
return hr;
}
LONG cchShifted;
ULONG iAttrs = 0;
BOOL fDone = TRUE;
const LONG cchShift = ( dwFlags & TS_ATTR_FIND_BACKWARDS ) ? -1 : 1;
CComPtr <IAnchor> paPos, paEndOfDoc;
hr = paStart->Clone( &paPos );
if ( FAILED(hr) )
{
TraceDebugHR( hr, TEXT("Clone failed ") );
return hr;
}
if ( paEnd == NULL )
{
if ( dwFlags & TS_ATTR_FIND_BACKWARDS )
{
m_pDoc->GetStart( &paEndOfDoc );
}
else
{
BOOL fRegion = FALSE;
hr = paStart->Clone( &paEndOfDoc );
while ( fRegion )
{
paEndOfDoc->Shift( 0, LONG_MAX, &cchShifted, NULL );
paEndOfDoc->ShiftRegion( 0, TS_SD_FORWARD, &fRegion );
}
}
}
while ( iAttrs == 0 )
{
hr = paPos->Shift( 0, cchShift, &cchShifted, NULL ); // TODO fix hidden text
if ( SUCCEEDED(hr) && cchShifted == cchShift )
{
*plFoundOffset += 1;
hr = paPos->IsEqual( paEnd ? paEnd : paEndOfDoc, &fDone );
if ( FAILED(hr) )
{
TraceDebugHR( hr, TEXT("IsEqual failed ") );
return hr;
}
if ( fDone )
break;
hr = GetAttr ( paPos, cFilterAttrs, paFilterAttrs, dwFlags, paNext);
if ( FAILED(hr) )
{
TraceDebugHR( hr, TEXT("Next GetAttr failed ") );
return hr;
}
CompareAttrs ( paCurrent, paNext, cFilterAttrs, iAttrs, FALSE );
if ( iAttrs )
{
*pfFound = TRUE;
}
}
else
{
TraceDebugHR( hr, TEXT("Shift failed ") );
return hr;
}
}
return S_OK;
}
HRESULT STDMETHODCALLTYPE RetrieveRequestedAttrs ( ULONG ulCount,
TS_ATTRVAL * paAttrVals,
ULONG * pcFetched )
{
// if there is no outstanding requests we satisfy then call through to the doc
if ( m_cAttrsTAP == 0 )
return m_pDoc->RetrieveRequestedAttrs( ulCount, paAttrVals, pcFetched );
if ( ( m_cAttrsTAP - m_iAttrsTAP ) < ulCount )
*pcFetched = m_cAttrsTAP - m_iAttrsTAP;
else
*pcFetched = ulCount;
memcpy(paAttrVals, &m_paAttrsTAP[m_iAttrsTAP], *pcFetched * sizeof(TS_ATTRVAL));
memset(&m_paAttrsTAP[m_iAttrsTAP], 0, *pcFetched * sizeof(TS_ATTRVAL));
m_iAttrsTAP += *pcFetched;
if ( m_iAttrsTAP == m_cAttrsTAP )
ResetAttrs();
return S_OK;
}
private:
ULONG m_cMaxAttrs;
ULONG m_iAttrsTAP;
ULONG m_cAttrsTAP;
ULONG m_cAttrsTAPSize;
TS_ATTRVAL * m_paAttrsTAP;
TS_ATTRID * m_paAttrsSupported;
private:
HRESULT STDMETHODCALLTYPE CompareAttrs ( TS_ATTRVAL * paAttr1,
TS_ATTRVAL * paAttr2,
ULONG cAttrs,
ULONG &iAttrs,
BOOL fCopy)
{
cAttrs = cAttrs ? cAttrs : m_cMaxAttrs;
for ( int i = 0; i < cAttrs; i++ )
{
for ( int j = 0; j < cAttrs; j++ )
{
if ( paAttr1[i].idAttr == paAttr2[j].idAttr )
{
if ( CComVariant( paAttr1[i].varValue ) != CComVariant( paAttr2[j].varValue ) )
{
if ( fCopy )
{
char * cBuf = ( char * )&m_paAttrsTAP[iAttrs];
memcpy( cBuf, ( char * )&paAttr2[j], sizeof(TS_ATTRVAL) );
}
iAttrs++;
}
break;
}
}
}
return S_OK;
}
HRESULT STDMETHODCALLTYPE GetAttr ( IAnchor * paStart,
ULONG cFilterAttrs,
const TS_ATTRID * paFilterAttrs,
DWORD dwFlags,
TS_ATTRVAL * paAttrVals)
{
ULONG cFetched;
HRESULT hr;
ULONG cAlloAttrs = cFilterAttrs ? cFilterAttrs : m_cMaxAttrs;
const TS_ATTRID * paActualFilterAttrs = paFilterAttrs ? paFilterAttrs : m_paAttrsSupported;
hr = m_pDoc->RequestAttrsAtPosition( paStart, cAlloAttrs, paActualFilterAttrs, 0 );
if ( FAILED(hr) )
return hr;
hr = m_pDoc->RetrieveRequestedAttrs( cAlloAttrs, paAttrVals, &cFetched );
if ( FAILED(hr) )
return hr;
return S_OK;
}
HRESULT STDMETHODCALLTYPE AllocateAttrs ( ULONG cFilterAttrs )
{
if ( cFilterAttrs == 0 && m_cMaxAttrs == 0 )
{
const LONG cAttrs = 512;
HRESULT hr = m_pDoc->RequestSupportedAttrs( 0, 0, NULL );
if ( FAILED(hr) )
return hr;
TS_ATTRVAL * paSupported = new TS_ATTRVAL[ cAttrs ];
if ( !paSupported )
return E_OUTOFMEMORY;
hr = m_pDoc->RetrieveRequestedAttrs( cAttrs, paSupported, &m_cMaxAttrs );
if ( SUCCEEDED(hr) )
{
m_paAttrsSupported = new TS_ATTRID[ m_cMaxAttrs ];
if ( m_paAttrsSupported )
{
for ( int i = 0; i < m_cMaxAttrs; i++ )
{
m_paAttrsSupported[i] = paSupported[i].idAttr;
}
}
}
delete [] paSupported;
if ( FAILED(hr) )
return hr;
if ( !m_paAttrsSupported )
return E_OUTOFMEMORY;
}
ULONG cAlloAttrs = cFilterAttrs ? cFilterAttrs : m_cMaxAttrs;
if ( m_cAttrsTAPSize < cAlloAttrs )
{
if ( m_paAttrsTAP )
delete [] m_paAttrsTAP;
m_paAttrsTAP = new TS_ATTRVAL[ cAlloAttrs ];
if ( !m_paAttrsTAP )
{
m_cAttrsTAPSize = 0;
return E_OUTOFMEMORY;
}
m_cAttrsTAPSize = cAlloAttrs;
}
return S_OK;
}
void ResetAttrs()
{
m_cAttrsTAP = 0;
m_iAttrsTAP = 0;
}
};
/* 12e53b1b-7d7f-40bd-8f88-4603ee40cf58 */
const IID IID_PRIV_CINPUTCONTEXT = { 0x12e53b1b, 0x7d7f, 0x40bd, {0x8f, 0x88, 0x46, 0x03, 0xee, 0x40, 0xcf, 0x58} };
/* aabf7f9a-4487-4b2e-8164-e54c5fe19204 */
const GUID GUID_SERVICE_CTF = { 0xaabf7f9a, 0x4487, 0x4b2e, {0x81, 0x64, 0xe5, 0x4c, 0x5f, 0xe1, 0x92, 0x04} };
//
// CDocSinkWrapBase
//
// - Base from which Anchor and ACP sink wrappers are derived.
//
// This class contains ACP/Anchor-neutral wrapping code - anything that is
// ACP/Anchor-specific is handled in the derived ..ACP or ...Anchor class
// instead.
//
// Since this class is the sink for the wrapper, it derives from the full Cicero
// sink (DocTraits::ICicSink - which is a typedef for ITfTextStoreSink[Anchor]),
// and that in turn includes the ITextStoreACP sink.
//
template < class _DocTraits >
class ATL_NO_VTABLE CSinkWrapBase :
public CComObjectRootEx<CComSingleThreadModel>,
public _DocTraits::ISink,
public _DocTraits::ICicSink,
public IServiceProvider
{
public:
// This typedef makes the DocTraits type visible in this and in the
// Anchor/ACP-specific derived classes. (Otherwise, as a template
// parameter in this class, it would not be available to them.)
typedef _DocTraits DocTraits;
DECLARE_PROTECT_FINAL_CONSTRUCT()
BEGIN_COM_MAP( CSinkWrapBase<DocTraits> )
COM_INTERFACE_ENTRY( DocTraits::ISink )
COM_INTERFACE_ENTRY( DocTraits::ICicSink )
COM_INTERFACE_ENTRY( IServiceProvider )
END_COM_MAP()
/*
static HRESULT InternalQueryInterface( void* pThis, const _ATL_INTMAP_ENTRY* pEntries, REFIID iid, void** ppvObject )
{
// Hack for cicero - they expect to be able to QI for IID_PRIV_CINPUTCONTEXT and get
// a ptr to one of ther internal class types (ick!)
// This breaks COM identity, but hey, it's a private IID, and is only ever used
// locally.
// We can't do that sort of goo using the interface map (above), so have to hijack InternalQI instead.
if( iid == IID_PRIV_CINPUTCONTEXT )
{
CSinkWrapBase<DocTraits> * pTHIS = (CSinkWrapBase<DocTraits> *)pThis;
// Look for the cicero sink...
// recognize it by the iid - it will have reg'd with a ITf (not TextStore) IID...
for( Iter_dl< DocTraits::CDocWrap > i ( pTHIS->m_pMgr->m_DocWraps ) ; ! i.AtEnd(); i++ )
{
if( i->m_Sink.m_pSink && i->m_Sink.m_iid == __uuidof( DocTraits::ICicSink ) )
{
return i->m_Sink.m_pSink->QueryInterface( iid, ppvObject );
}
}
return E_NOINTERFACE;
}
return CComObjectRootEx<CComSingleThreadModel>::InternalQueryInterface( pThis, pEntries, iid, ppvObject );
}
*/
protected:
// Protected stuff - used in this class, and by the ACP/Anchor-specific
// derived classes.
// Link back to the wrap manager. Used to tell it when we are going
// away...
CWrapMgr< DocTraits > * m_pMgr;
// Ptr to the manager's list of docs (which contain sinks)...
List_dl< DocTraits::CDocWrap > * m_pDocs;
// This macro forwards a call by iterating all the sinks in the manager,
// and forwarding if their mask has the right bit set.
// Note - this CANNOT be used for OnLockGranted.
#define CSinkWrap_FORWARD( mask, fname, c, params ) /**/ \
HRESULT STDMETHODCALLTYPE fname AS_DECL( c, params )\
{\
IMETHOD( fname );\
Assert( m_pMgr && m_pDocs );\
m_pMgr->RemoveDeadDocs();\
CPrivateAddRef MyAddRef(m_pMgr->m_lIterationRefCount);\
for( Iter_dl < DocTraits::CDocWrap > i ( *m_pDocs ) ; ! i.AtEnd() ; i++ )\
{\
DocTraits::ISink * pSink = static_cast< DocTraits::ISink * >( i->m_Sink.m_pSink );\
DWORD dwMask = i->m_Sink.m_dwMask;\
if( pSink && ( mask == 0 || ( dwMask & mask ) ) )\
{\
pSink-> fname AS_CALL( c, params );\
}\
}\
return S_OK ;\
}
// This macro forwards Cicero's TextStoreSink calls - they're not really sinks since
// the return values are significant - true broadcast is not supported; only the
// first sink in the manager which supports the interface is used - and its
// return value gets returned.
#define CSinkWrap_FORWARD_CICERO( fname, c, params ) /**/ \
HRESULT STDMETHODCALLTYPE fname AS_DECL( c, params )\
{\
IMETHOD( fname );\
Assert( m_pMgr && m_pDocs );\
for( Iter_dl < DocTraits::CDocWrap > i ( *m_pDocs ) ; ! i.AtEnd() ; i++ )\
{\
if ( i->m_Sink.m_pSink )\
{\
CComPtr< DocTraits::ICicSink > pTheSink;\
HRESULT hr = i->m_Sink.m_pSink->QueryInterface( __uuidof(DocTraits::ICicSink), (void **)&pTheSink );\
if( hr == S_OK )\
{\
return pTheSink-> fname AS_CALL( c, params );\
}\
}\
}\
return E_FAIL ;\
}
public:
//
// Ctor, Dtor and initialization...
//
CSinkWrapBase()
: m_pMgr( NULL ),
m_pDocs( NULL )
{
}
~CSinkWrapBase()
{
AssertMsg( m_pMgr != NULL && m_pDocs != NULL, TEXT("CSinkWrapBase::Init never got called?") );
m_pMgr->SinkWrap_NotifyDisconnect();
m_pMgr->Release();
}
void Init( CWrapMgr< DocTraits > * pMgr, List_dl< DocTraits::CDocWrap > * pDocs )
{
AssertMsg( m_pMgr == NULL && m_pDocs == NULL, TEXT("CSinkWrapBase::Init should only be called once when m_pMgr is NULL") );
m_pMgr = pMgr;
m_pMgr->AddRef();
m_pDocs = pDocs;
}
//
// IServiceProvider - Cicero uses this to 'drill through' to the original anchor to pull out
// internal information. Just pass it through...
//
HRESULT STDMETHODCALLTYPE QueryService( REFGUID guidService, REFIID riid, void **ppvObject )
{
IMETHOD( QueryService );
// Find the cicero sink...
DocTraits::ICicSink * pTheSink = NULL;
// Look for the cicero sink...
// The cicero sink supports the Services interfaces and other don't
for( Iter_dl< DocTraits::CDocWrap > i ( m_pMgr->m_DocWraps ) ; ! i.AtEnd(); i++ )
{
if ( i->m_Sink.m_pSink )
{
if( i->m_Sink.m_pSink->QueryInterface( __uuidof(DocTraits::ICicSink), (void **)&pTheSink ) == S_OK )
{
break;
}
}
}
if( pTheSink == NULL )
return E_FAIL;
CComPtr<IServiceProvider> pISP;
HRESULT hr = pTheSink->QueryInterface( IID_IServiceProvider, (void **) & pISP );
if( hr != S_OK || pISP == NULL )
return E_FAIL;
hr = pISP->QueryService( guidService, riid, ppvObject );
return hr;
}
//
// ACP/Anchor-neutral sinks - just broadcast these...
//
CSinkWrap_FORWARD( TS_AS_SEL_CHANGE, OnSelectionChange, 0, () )
CSinkWrap_FORWARD( TS_AS_LAYOUT_CHANGE, OnLayoutChange, 2, ( TsLayoutCode, lcode, TsViewCookie, vcView ) )
CSinkWrap_FORWARD( 0, OnStatusChange, 1, ( DWORD, dwFlags ) )
CSinkWrap_FORWARD( 0, OnStartEditTransaction,0, () )
CSinkWrap_FORWARD( 0, OnEndEditTransaction, 0, () )
//
// Special case for OnLockGranted...
// Handle single-client sync requests, and multiple queued async requests...
//
HRESULT STDMETHODCALLTYPE OnLockGranted ( DWORD dwLockFlags )
{
IMETHOD( OnLockGranted );
Assert( m_pMgr );
return m_pMgr->SinkWrap_HandleOnLockGranted( dwLockFlags );
}
};
//
// CSinkWrapACP
//
// - ACP sink wrapper
//
// Derived from the CSinkWrapBase, this adds ACP-specific methods; including
// those from both ITextStoreACP and the cicero-specific ITfTextStoreSink
// interfaces.
//
class ATL_NO_VTABLE CSinkWrapACP :
public CSinkWrapBase< DocTraitsACP >
{
public:
//
// ITextStoreACPSink ACP/Anchor-specific methods - broadcast to all interested sinks...
// (See CSinkWrapBase for the forwarding macro.)
//
CSinkWrap_FORWARD( TS_AS_TEXT_CHANGE, OnTextChange, 2, ( DWORD, dwFlags, const TS_TEXTCHANGE *, pChange ) )
CSinkWrap_FORWARD( 0, OnAttrsChange, 4, ( LONG, acpStart, LONG, acpEnd, ULONG, cAttrs, const TS_ATTRID *, paAttrs ) )
//
// Cicero-specific sink methods - forward these to the first available sink that implements the cicero interface...
// (See CSinkWrapBase for the forwarding macro.)
//
CSinkWrap_FORWARD_CICERO( Serialize, 4, (ITfProperty *, pProp, ITfRange *, pRange, TF_PERSISTENT_PROPERTY_HEADER_ACP *, pHdr, IStream *, pStream) )
CSinkWrap_FORWARD_CICERO( Unserialize, 4, (ITfProperty *, pProp, const TF_PERSISTENT_PROPERTY_HEADER_ACP *, pHdr, IStream *, pStream, ITfPersistentPropertyLoaderACP *, pLoader) )
CSinkWrap_FORWARD_CICERO( ForceLoadProperty,1, (ITfProperty *, pProp) )
CSinkWrap_FORWARD_CICERO( CreateRange, 3, (LONG, acpStart, LONG, acpEnd, ITfRangeACP **, ppRange) )
};
//
// CSinkWrapAnchor
//
// - Anchor sink wrapper
//
// Derived from the CSinkWrapBase, this adds Anchor-specific methods; including
// those from both ITextStoreACP and the cicero-specific ITfTextStoreSink
// interfaces.
//
class ATL_NO_VTABLE CSinkWrapAnchor :
public CSinkWrapBase< DocTraitsAnchor >
{
public:
//
// ITextStoreACPSink ACP/Anchor-specific methods - broadcast to all interested sinks...
// (See CSinkWrapBase for the forwarding macro.)
//
CSinkWrap_FORWARD( TS_AS_TEXT_CHANGE, OnTextChange, 3, ( DWORD, dwFlags, IAnchor *, paStart, IAnchor *, paEnd ) )
CSinkWrap_FORWARD( 0, OnAttrsChange, 4, ( IAnchor *, paStart, IAnchor *, paEnd, ULONG, cAttrs, const TS_ATTRID *, paAttrs ) )
//
// Cicero-specific sink methods - forward these to the first available sink that implements the cicero interface...
// (See CSinkWrapBase for the forwarding macro.)
//
CSinkWrap_FORWARD_CICERO( Serialize, 4, (ITfProperty *, pProp, ITfRange *, pRange, TF_PERSISTENT_PROPERTY_HEADER_ANCHOR *, pHdr, IStream *, pStream) )
CSinkWrap_FORWARD_CICERO( Unserialize, 4, (ITfProperty *, pProp, const TF_PERSISTENT_PROPERTY_HEADER_ANCHOR *, pHdr, IStream *, pStream, ITfPersistentPropertyLoaderAnchor *, pLoader) )
CSinkWrap_FORWARD_CICERO( ForceLoadProperty,1, (ITfProperty *, pProp) )
CSinkWrap_FORWARD_CICERO( CreateRange, 3, (IAnchor *, paStart, IAnchor *, paEnd, ITfRangeAnchor **, ppRange) )
};
CDocWrap::CDocWrap()
: m_punkDoc( NULL ),
m_pWrapMgr( NULL )
{
IMETHOD( CDocWrap );
// Done.
}
CDocWrap::~CDocWrap()
{
IMETHOD( ~CDocWrap );
_Clear();
}
HRESULT STDMETHODCALLTYPE CDocWrap::SetDoc( REFIID riid, IUnknown * pDocIn )
{
IMETHOD( SetDoc );
_Clear();
if( pDocIn == NULL )
{
TraceInfo( TEXT("CDocWrapp::SetDoc( NULL ) - doc cleared") );
return S_OK;
}
HRESULT hr;
if( riid == IID_ITextStoreACP || riid == IID_ITfTextStoreACP )
{
CWrapMgr< DocTraitsACP > * pWrapMgrACP;
hr = CreateLocalInstance( & pWrapMgrACP );
m_pWrapMgr = pWrapMgrACP;
}
else if( riid == IID_ITextStoreAnchor || riid == IID_ITfTextStoreAnchor )
{
CWrapMgr< DocTraitsAnchor > * pWrapMgrAnchor;
hr = CreateLocalInstance( & pWrapMgrAnchor );
m_pWrapMgr = pWrapMgrAnchor;
}
else
{
TraceParam( TEXT("CDocWrapp::SetDoc - given unknown IID") );
return E_NOINTERFACE;
}
CHECK_HR_RETURN( hr, m_pWrapMgr != NULL );
if( hr != S_OK )
{
TraceErrorHR( hr, TEXT("Couldn't create CWrapMgr") );
return FAILED( (hr) ) ? (hr) : E_UNEXPECTED;
}
if( hr == S_OK && ! m_pWrapMgr )
{
TraceErrorHR( hr, TEXT("Couldn't create CWrapMgr") );
return E_UNEXPECTED;
}
m_pWrapMgr->SetDoc( pDocIn );
m_iid = riid;
m_punkDoc = pDocIn;
m_punkDoc->AddRef();
TraceInfo( TEXT("CDocWrap::SetDoc - new doc set.") );
return S_OK;
}
HRESULT STDMETHODCALLTYPE CDocWrap::GetWrappedDoc( REFIID riid, IUnknown ** pWrappedDocOut )
{
IMETHOD( GetWrappedDoc );
if( ! m_punkDoc || ! m_pWrapMgr )
{
TraceParam( TEXT("GetWrappedDoc called without prior successful call to SetDoc") );
return E_FAIL;
}
if( ! pWrappedDocOut )
{
TraceParam( TEXT("GetWrappedDoc called without NULL pWrappedDocOut param") );
return E_POINTER;
}
// Check that requested iid matches...
// We allow Doc/ITf mixes, provided the interfaces match ACP/Anchor-wise.
if( m_iid == IID_ITextStoreAnchor || m_iid == IID_ITfTextStoreAnchor )
{
if( riid != IID_ITextStoreAnchor && riid != IID_ITfTextStoreAnchor )
{
TraceParam( TEXT("Interface requested by GetWrappedDoc doesn't match that suplied by SetDoc") );
return E_NOINTERFACE;
}
}
else
{
if( riid != IID_ITextStoreACP && riid != IID_ITfTextStoreACP )
{
TraceParam( TEXT("Interface requested by GetWrappedDoc doesn't match that suplied by SetDoc") );
return E_NOINTERFACE;
}
}
TraceInfo( TEXT("GetWrappedDoc succeeded") );
return m_pWrapMgr->CreateWrappedDoc( pWrappedDocOut );
}
void CDocWrap::_Clear()
{
SafeReleaseClear( m_pWrapMgr );
SafeReleaseClear( m_punkDoc );
}
Reference in a new issue Copy permalink