msctf: Implement stub ITfContext.
diff --git a/dlls/msctf/Makefile.in b/dlls/msctf/Makefile.in
index a629554..cdb51d8 100644
--- a/dlls/msctf/Makefile.in
+++ b/dlls/msctf/Makefile.in
@@ -6,6 +6,7 @@
 IMPORTS   = uuid ole32 user32 advapi32 kernel32 ntdll
 
 C_SRCS = \
+	context.c \
 	documentmgr.c \
 	msctf.c \
 	regsvr.c \
diff --git a/dlls/msctf/context.c b/dlls/msctf/context.c
new file mode 100644
index 0000000..696db65
--- /dev/null
+++ b/dlls/msctf/context.c
@@ -0,0 +1,262 @@
+/*
+ *  ITfContext implementation
+ *
+ *  Copyright 2009 Aric Stewart, CodeWeavers
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#include "config.h"
+
+#include <stdarg.h>
+
+#define COBJMACROS
+
+#include "wine/debug.h"
+#include "windef.h"
+#include "winbase.h"
+#include "winreg.h"
+#include "winuser.h"
+#include "shlwapi.h"
+#include "winerror.h"
+#include "objbase.h"
+
+#include "wine/unicode.h"
+
+#include "msctf.h"
+#include "msctf_internal.h"
+
+WINE_DEFAULT_DEBUG_CHANNEL(msctf);
+
+typedef struct tagContext {
+    const ITfContextVtbl *ContextVtbl;
+    LONG refCount;
+
+    TfClientId tidOwner;
+    IUnknown *punk;  /* possible ITextStoreACP or ITfContextOwnerCompositionSink */
+} Context;
+
+static void Context_Destructor(Context *This)
+{
+    TRACE("destroying %p\n", This);
+    HeapFree(GetProcessHeap(),0,This);
+}
+
+static HRESULT WINAPI Context_QueryInterface(ITfContext *iface, REFIID iid, LPVOID *ppvOut)
+{
+    Context *This = (Context *)iface;
+    *ppvOut = NULL;
+
+    if (IsEqualIID(iid, &IID_IUnknown) || IsEqualIID(iid, &IID_ITfContext))
+    {
+        *ppvOut = This;
+    }
+
+    if (*ppvOut)
+    {
+        IUnknown_AddRef(iface);
+        return S_OK;
+    }
+
+    WARN("unsupported interface: %s\n", debugstr_guid(iid));
+    return E_NOINTERFACE;
+}
+
+static ULONG WINAPI Context_AddRef(ITfContext *iface)
+{
+    Context *This = (Context *)iface;
+    return InterlockedIncrement(&This->refCount);
+}
+
+static ULONG WINAPI Context_Release(ITfContext *iface)
+{
+    Context *This = (Context *)iface;
+    ULONG ret;
+
+    ret = InterlockedDecrement(&This->refCount);
+    if (ret == 0)
+        Context_Destructor(This);
+    return ret;
+}
+
+/*****************************************************
+ * ITfContext functions
+ *****************************************************/
+static HRESULT WINAPI Context_RequestEditSession (ITfContext *iface,
+        TfClientId tid, ITfEditSession *pes, DWORD dwFlags,
+        HRESULT *phrSession)
+{
+    Context *This = (Context *)iface;
+    FIXME("STUB:(%p)\n",This);
+    return E_NOTIMPL;
+}
+
+static HRESULT WINAPI Context_InWriteSession (ITfContext *iface,
+         TfClientId tid,
+         BOOL *pfWriteSession)
+{
+    Context *This = (Context *)iface;
+    FIXME("STUB:(%p)\n",This);
+    return E_NOTIMPL;
+}
+
+static HRESULT WINAPI Context_GetSelection (ITfContext *iface,
+        TfEditCookie ec, ULONG ulIndex, ULONG ulCount,
+        TF_SELECTION *pSelection, ULONG *pcFetched)
+{
+    Context *This = (Context *)iface;
+    FIXME("STUB:(%p)\n",This);
+    return E_NOTIMPL;
+}
+
+static HRESULT WINAPI Context_SetSelection (ITfContext *iface,
+        TfEditCookie ec, ULONG ulCount, const TF_SELECTION *pSelection)
+{
+    Context *This = (Context *)iface;
+    FIXME("STUB:(%p)\n",This);
+    return E_NOTIMPL;
+}
+
+static HRESULT WINAPI Context_GetStart (ITfContext *iface,
+        TfEditCookie ec, ITfRange **ppStart)
+{
+    Context *This = (Context *)iface;
+    FIXME("STUB:(%p)\n",This);
+    return E_NOTIMPL;
+}
+
+static HRESULT WINAPI Context_GetEnd (ITfContext *iface,
+        TfEditCookie ec, ITfRange **ppEnd)
+{
+    Context *This = (Context *)iface;
+    FIXME("STUB:(%p)\n",This);
+    return E_NOTIMPL;
+}
+
+static HRESULT WINAPI Context_GetActiveView (ITfContext *iface,
+  ITfContextView **ppView)
+{
+    Context *This = (Context *)iface;
+    FIXME("STUB:(%p)\n",This);
+    return E_NOTIMPL;
+}
+
+static HRESULT WINAPI Context_EnumViews (ITfContext *iface,
+        IEnumTfContextViews **ppEnum)
+{
+    Context *This = (Context *)iface;
+    FIXME("STUB:(%p)\n",This);
+    return E_NOTIMPL;
+}
+
+static HRESULT WINAPI Context_GetStatus (ITfContext *iface,
+        TF_STATUS *pdcs)
+{
+    Context *This = (Context *)iface;
+    FIXME("STUB:(%p)\n",This);
+    return E_NOTIMPL;
+}
+
+static HRESULT WINAPI Context_GetProperty (ITfContext *iface,
+        REFGUID guidProp, ITfProperty **ppProp)
+{
+    Context *This = (Context *)iface;
+    FIXME("STUB:(%p)\n",This);
+    return E_NOTIMPL;
+}
+
+static HRESULT WINAPI Context_GetAppProperty (ITfContext *iface,
+        REFGUID guidProp, ITfReadOnlyProperty **ppProp)
+{
+    Context *This = (Context *)iface;
+    FIXME("STUB:(%p)\n",This);
+    return E_NOTIMPL;
+}
+
+static HRESULT WINAPI Context_TrackProperties (ITfContext *iface,
+        const GUID **prgProp, ULONG cProp, const GUID **prgAppProp,
+        ULONG cAppProp, ITfReadOnlyProperty **ppProperty)
+{
+    Context *This = (Context *)iface;
+    FIXME("STUB:(%p)\n",This);
+    return E_NOTIMPL;
+}
+
+static HRESULT WINAPI Context_EnumProperties (ITfContext *iface,
+        IEnumTfProperties **ppEnum)
+{
+    Context *This = (Context *)iface;
+    FIXME("STUB:(%p)\n",This);
+    return E_NOTIMPL;
+}
+
+static HRESULT WINAPI Context_GetDocumentMgr (ITfContext *iface,
+        ITfDocumentMgr **ppDm)
+{
+    Context *This = (Context *)iface;
+    FIXME("STUB:(%p)\n",This);
+    return E_NOTIMPL;
+}
+
+static HRESULT WINAPI Context_CreateRangeBackup (ITfContext *iface,
+        TfEditCookie ec, ITfRange *pRange, ITfRangeBackup **ppBackup)
+{
+    Context *This = (Context *)iface;
+    FIXME("STUB:(%p)\n",This);
+    return E_NOTIMPL;
+}
+
+static const ITfContextVtbl Context_ContextVtbl =
+{
+    Context_QueryInterface,
+    Context_AddRef,
+    Context_Release,
+
+    Context_RequestEditSession,
+    Context_InWriteSession,
+    Context_GetSelection,
+    Context_SetSelection,
+    Context_GetStart,
+    Context_GetEnd,
+    Context_GetActiveView,
+    Context_EnumViews,
+    Context_GetStatus,
+    Context_GetProperty,
+    Context_GetAppProperty,
+    Context_TrackProperties,
+    Context_EnumProperties,
+    Context_GetDocumentMgr,
+    Context_CreateRangeBackup
+};
+
+HRESULT Context_Constructor(TfClientId tidOwner, IUnknown *punk, ITfContext **ppOut, TfEditCookie *pecTextStore)
+{
+    Context *This;
+
+    This = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(Context));
+    if (This == NULL)
+        return E_OUTOFMEMORY;
+
+    This->ContextVtbl= &Context_ContextVtbl;
+    This->refCount = 1;
+    This->tidOwner = tidOwner;
+    This->punk = punk;
+
+    TRACE("returning %p\n", This);
+    *ppOut = (ITfContext*)This;
+    /* FIXME */
+    *pecTextStore = 0xdeaddead;
+    return S_OK;
+}
diff --git a/dlls/msctf/documentmgr.c b/dlls/msctf/documentmgr.c
index fe02320..6245037 100644
--- a/dlls/msctf/documentmgr.c
+++ b/dlls/msctf/documentmgr.c
@@ -97,8 +97,8 @@
         TfEditCookie *pecTextStore)
 {
     DocumentMgr *This = (DocumentMgr *)iface;
-    FIXME("STUB:(%p)\n",This);
-    return E_NOTIMPL;
+    TRACE("(%p) 0x%x 0x%x %p %p %p\n",This,tidOwner,dwFlags,punk,ppic,pecTextStore);
+    return Context_Constructor(tidOwner, punk, ppic, pecTextStore);
 }
 
 static HRESULT WINAPI DocumentMgr_Push(ITfDocumentMgr *iface, ITfContext *pic)
diff --git a/dlls/msctf/msctf_internal.h b/dlls/msctf/msctf_internal.h
index fa4a6ef..347c475 100644
--- a/dlls/msctf/msctf_internal.h
+++ b/dlls/msctf/msctf_internal.h
@@ -24,5 +24,6 @@
 
 extern HRESULT ThreadMgr_Constructor(IUnknown *pUnkOuter, IUnknown **ppOut);
 extern HRESULT DocumentMgr_Constructor(ITfDocumentMgr **ppOut);
+extern HRESULT Context_Constructor(TfClientId tidOwner, IUnknown *punk, ITfContext **ppOut, TfEditCookie *pecTextStore);
 
 #endif /* __WINE_MSCTF_I_H */