Create window in SetClientSite and return it in

IOleInPlaceSite::GetWindow.

dlls/shdocvw/client.c

@@ -151,8 +151,11 @@ static ULONG WINAPI InPlaceSite_Release(IOleInPlaceSite *iface)
 static HRESULT WINAPI InPlaceSite_GetWindow(IOleInPlaceSite *iface, HWND *phwnd)
 {
     WebBrowser *This = INPLACESITE_THIS(iface);
-    FIXME("(%p)->(%p)\n", This, phwnd);
+
-    return E_NOTIMPL;
+    TRACE("(%p)->(%p)\n", This, phwnd);
+
+    *phwnd = This->doc_view_hwnd;
+    return S_OK;
 }
 
 static HRESULT WINAPI InPlaceSite_ContextSensitiveHelp(IOleInPlaceSite *iface, BOOL fEnterMode)

dlls/shdocvw/oleobject.c

@@ -29,6 +29,84 @@
 
 WINE_DEFAULT_DEBUG_CHANNEL(shdocvw);
 
+static ATOM doc_view_atom = 0;
+static ATOM shell_embedding_atom = 0;
+
+static LRESULT WINAPI doc_view_proc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
+{
+    return DefWindowProcA(hwnd, msg, wParam, lParam);
+}
+
+static LRESULT WINAPI shell_embedding_proc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
+{
+    return DefWindowProcA(hwnd, msg, wParam, lParam);
+}
+
+static void create_doc_view_hwnd(WebBrowser *This)
+{
+    static const WCHAR wszShell_DocObject_View[] =
+        {'S','h','e','l','l',' ','D','o','c','O','b','j','e','c','t',' ','V','i','e','w',0};
+
+    if(!doc_view_atom) {
+        static WNDCLASSEXW wndclass = {
+            sizeof(wndclass),
+            CS_PARENTDC,
+            doc_view_proc,
+            0, 0 /* native uses 4*/, NULL, NULL, NULL,
+            (HBRUSH)COLOR_WINDOWFRAME, NULL,
+            wszShell_DocObject_View,
+            NULL
+        };
+
+        wndclass.hInstance = shdocvw_hinstance;
+
+        doc_view_atom = RegisterClassExW(&wndclass);
+    }
+
+    This->doc_view_hwnd = CreateWindowExW(0, wszShell_DocObject_View, NULL,
+         WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_TABSTOP | WS_MAXIMIZEBOX,
+         0, 0, 0, 0, This->shell_embedding_hwnd,
+         NULL, shdocvw_hinstance, This);
+}
+
+static void create_shell_embedding_hwnd(WebBrowser *This)
+{
+    IOleInPlaceSite *inplace;
+    HWND parent = NULL;
+    HRESULT hres;
+
+    static const WCHAR wszShellEmbedding[] =
+        {'S','h','e','l','l',' ','E','m','b','e','d','d','i','n','g',0};
+
+    if(!shell_embedding_atom) {
+        static WNDCLASSEXW wndclass = {
+            sizeof(wndclass),
+            CS_DBLCLKS,
+            shell_embedding_proc,
+            0, 0 /* native uses 8 */, NULL, NULL, NULL,
+            (HBRUSH)COLOR_WINDOWFRAME, NULL,
+            wszShellEmbedding,
+            NULL
+        };
+        wndclass.hInstance = shdocvw_hinstance;
+
+        RegisterClassExW(&wndclass);
+    }
+
+    hres = IOleClientSite_QueryInterface(This->client, &IID_IOleInPlaceSite, (void**)&inplace);
+    if(SUCCEEDED(hres)) {
+        IOleInPlaceSite_GetWindow(inplace, &parent);
+        IOleInPlaceSite_Release(inplace);
+    }
+
+    This->shell_embedding_hwnd = CreateWindowExW(0, wszShellEmbedding, NULL,
+         WS_CHILD | WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_TABSTOP | WS_MAXIMIZEBOX,
+         0, 0, 0, 0, parent,
+         NULL, shdocvw_hinstance, This);
+
+    create_doc_view_hwnd(This);
+}
+
 /**********************************************************************
  * Implement the IOleObject interface for the WebBrowser control
  */
@@ -62,13 +140,22 @@ static HRESULT WINAPI OleObject_SetClientSite(IOleObject *iface, LPOLECLIENTSITE
     if(This->client == pClientSite)
         return S_OK;
 
+    if(This->doc_view_hwnd)
+        DestroyWindow(This->doc_view_hwnd);
+    if(This->shell_embedding_hwnd)
+        DestroyWindow(This->shell_embedding_hwnd);
+
     if(This->client)
         IOleClientSite_Release(This->client);
 
-    if(pClientSite)
-        IOleClientSite_AddRef(pClientSite);
-
     This->client = pClientSite;
+    if(!pClientSite)
+        return S_OK;
+    
+    IOleClientSite_AddRef(pClientSite);
+
+    create_shell_embedding_hwnd(This);
+
     return S_OK;
 }
 
@@ -176,6 +263,7 @@ static HRESULT WINAPI OleObject_DoVerb(IOleObject *iface, LONG iVerb, struct tag
                                          &This->pos_rect, &This->clip_rect,
                                          &This->frameinfo);
 
+
         IOleInPlaceSite_Release(inplace);
 
         if(This->client) {
@@ -507,7 +595,7 @@ void WebBrowser_OleObject_Init(WebBrowser *This)
 void WebBrowser_OleObject_Destroy(WebBrowser *This)
 {
     if(This->client)
-        IOleClientSite_Release(This->client);
+        IOleObject_SetClientSite(OLEOBJ(This), NULL);
     if(This->container)
         IOleContainer_Release(This->container);
     if(This->frame)

dlls/shdocvw/shdocvw.h

@@ -95,6 +95,9 @@ typedef struct {
     RECT clip_rect;
     OLEINPLACEFRAMEINFO frameinfo;
 
+    HWND doc_view_hwnd;
+    HWND shell_embedding_hwnd;
+
     /* Connection points */
 
     IConnectionPoint *cp_wbe2;
@@ -144,4 +147,6 @@ extern LONG SHDOCVW_refCount;
 static inline void SHDOCVW_LockModule(void) { InterlockedIncrement( &SHDOCVW_refCount ); }
 static inline void SHDOCVW_UnlockModule(void) { InterlockedDecrement( &SHDOCVW_refCount ); }
 
+extern HINSTANCE shdocvw_hinstance;
+
 #endif /* __WINE_SHDOCVW_H */