msctf: Maintain context reference in ranges.

dlls/msctf/range.c

@@ -42,7 +42,7 @@ typedef struct tagRange {
     LONG refCount;
 
     ITextStoreACP   *pITextStoreACP;
-    ITfContext      *pITfContext;
+    ITfContext *context;
 
     DWORD lockType;
     TfGravity gravityStart, gravityEnd;
@@ -58,6 +58,7 @@ static inline Range *impl_from_ITfRange(ITfRange *iface)
 static void Range_Destructor(Range *This)
 {
     TRACE("destroying %p\n", This);
+    ITfContext_Release(This->context);
     HeapFree(GetProcessHeap(),0,This);
 }
 
@@ -282,13 +283,18 @@ static HRESULT WINAPI Range_Clone(ITfRange *iface, ITfRange **ppClone)
     return E_NOTIMPL;
 }
 
-static HRESULT WINAPI Range_GetContext(ITfRange *iface, ITfContext **ppContext)
+static HRESULT WINAPI Range_GetContext(ITfRange *iface, ITfContext **context)
 {
     Range *This = impl_from_ITfRange(iface);
-    TRACE("(%p)\n",This);
-    if (!ppContext)
+
+    TRACE("(%p, %p)\n", This, context);
+
+    if (!context)
         return E_INVALIDARG;
-    *ppContext = This->pITfContext;
+
+    *context = This->context;
+    ITfContext_AddRef(*context);
+
     return S_OK;
 }
 
@@ -334,7 +340,8 @@ HRESULT Range_Constructor(ITfContext *context, ITextStoreACP *textstore, DWORD l
 
     This->ITfRange_iface.lpVtbl = &Range_RangeVtbl;
     This->refCount = 1;
-    This->pITfContext = context;
+    This->context = context;
+    ITfContext_AddRef(This->context);
     This->pITextStoreACP = textstore;
     This->lockType = lockType;
     This->anchorStart = anchorStart;

dlls/msctf/tests/inputprocessor.c

@@ -228,6 +228,8 @@ static HRESULT WINAPI TextStoreACP_AdviseSink(ITextStoreACP *iface,
     REFIID riid, IUnknown *punk, DWORD dwMask)
 {
     ITextStoreACPServices *services;
+    ITfRangeACP *range;
+    ITfContext *context;
     HRESULT hr;
 
     if (winetest_debug > 1) trace("ITextStoreACP::AdviseSink(iid %s, mask %#x)\n",
@@ -243,6 +245,18 @@ static HRESULT WINAPI TextStoreACP_AdviseSink(ITextStoreACP *iface,
 
     hr = ITextStoreACPSink_QueryInterface(ACPSink, &IID_ITextStoreACPServices, (void**)&services);
     ok(hr == S_OK, "got 0x%08x\n", hr);
+
+    range = NULL;
+    hr = ITextStoreACPServices_CreateRange(services, 0, 1, &range);
+    ok(hr == S_OK, "Unexpected hr %#x.\n", hr);
+    if (range)
+    {
+        hr = ITfRangeACP_GetContext(range, &context);
+        ok(hr == S_OK, "Unexpected hr %#x.\n", hr);
+        ITfContext_Release(context);
+        ITfRangeACP_Release(range);
+    }
+
     ITextStoreACPServices_Release(services);
 
     return S_OK;
@@ -2084,10 +2098,11 @@ static void test_InsertAtSelection(TfEditCookie ec, ITfContext *cxt)
 static HRESULT WINAPI EditSession_DoEditSession(ITfEditSession *iface,
 TfEditCookie ec)
 {
-    ITfContext *cxt;
+    ITfContext *cxt, *context2;
     ITfDocumentMgr *dm;
     ITfRange *range;
     TF_SELECTION selection;
+    IUnknown *unk;
     ULONG fetched;
     HRESULT hr;
 
@@ -2109,6 +2124,15 @@ TfEditCookie ec)
     ok(SUCCEEDED(hr),"Unexpected return code %x\n",hr);
     ok(range != NULL,"Range set to NULL\n");
 
+    hr = ITfRange_GetContext(range, &context2);
+    ok(hr == S_OK, "Unexpected hr %#x.\n", hr);
+    ok(context2 == cxt, "Unexpected context pointer.\n");
+    ITfContext_Release(context2);
+
+    hr = ITfRange_QueryInterface(range, &IID_ITfRangeACP, (void **)&unk);
+todo_wine
+    ok(hr == S_OK, "Unexpected hr %#x.\n", hr);
+
     ITfRange_Release(range);
 
     hr = ITfContext_GetEnd(cxt,ec,NULL);