C++ IOleClientSite_QueryInterface函数代码示例

static HWND get_container_hwnd(WindowsMediaPlayer *This)
{
    IOleWindow *ole_window;
    HWND hwnd = NULL;
    HRESULT hres;

    /* IOleInPlaceSite (which inherits from IOleWindow) is preferred. */
    hres = IOleClientSite_QueryInterface(This->client_site, &IID_IOleInPlaceSite, (void**)&ole_window);
    if(FAILED(hres)) {
        hres = IOleClientSite_QueryInterface(This->client_site, &IID_IOleWindow, (void**)&ole_window);
        if(FAILED(hres)) {
            IOleContainer *container = NULL;

            hres = IOleClientSite_GetContainer(This->client_site, &container);
            if(SUCCEEDED(hres)) {
                hres = IOleContainer_QueryInterface(container, &IID_IOleWindow, (void**)&ole_window);
                IOleContainer_Release(container);
            }
        }
    }

    if(FAILED(hres))
        return NULL;

    hres = IOleWindow_GetWindow(ole_window, &hwnd);
    IOleWindow_Release(ole_window);
    if(FAILED(hres))
        return NULL;

    TRACE("Got window %p\n", hwnd);
    return hwnd;
}

static HRESULT activate_inplace(WindowsMediaPlayer *This)
{
    IOleInPlaceSiteWindowless *ipsite_windowless;
    IOleInPlaceSiteEx *ipsiteex = NULL;
    IOleInPlaceSite *ipsite;
    IOleInPlaceUIWindow *ip_window = NULL;
    IOleInPlaceFrame *ip_frame = NULL;
    RECT posrect = {0}, cliprect = {0};
    OLEINPLACEFRAMEINFO frameinfo = { sizeof(frameinfo) };
    HRESULT hres;

    if(This->hwnd) {
        FIXME("Already activated\n");
        return E_UNEXPECTED;
    }

    hres = IOleClientSite_QueryInterface(This->client_site, &IID_IOleInPlaceSiteWindowless, (void**)&ipsite_windowless);
    if(SUCCEEDED(hres)) {
        hres = IOleInPlaceSiteWindowless_CanWindowlessActivate(ipsite_windowless);
        IOleInPlaceSiteWindowless_Release(ipsite_windowless);
        if(hres == S_OK)
            FIXME("Windowless activation not supported\n");
        ipsiteex = (IOleInPlaceSiteEx*)ipsite_windowless;
    }else {
        IOleClientSite_QueryInterface(This->client_site, &IID_IOleInPlaceSiteEx, (void**)&ipsiteex);
    }

    if(ipsiteex) {
        BOOL redraw = FALSE; /* Not really used. */
        IOleInPlaceSiteEx_OnInPlaceActivateEx(ipsiteex, &redraw, 0);
        ipsite = (IOleInPlaceSite*)ipsiteex;
    }else {
        IOleClientSite_QueryInterface(This->client_site, &IID_IOleInPlaceSite, (void**)&ipsite);
        if(FAILED(hres)) {
            FIXME("No IOleInPlaceSite instance\n");
            return hres;
        }

        IOleInPlaceSite_OnInPlaceActivate(ipsite);
    }

    hres = IOleInPlaceSite_GetWindowContext(ipsite, &ip_frame, &ip_window, &posrect, &cliprect, &frameinfo);
    IOleInPlaceSite_Release(ipsite);
    if(FAILED(hres)) {
        FIXME("GetWindowContext failed: %08x\n", hres);
        return hres;
    }

    This->hwnd = create_wmp_window(This, &posrect);
    if(!This->hwnd)
        return E_FAIL;

    IOleClientSite_ShowObject(This->client_site);
    return S_OK;
}

void update_title(HTMLDocumentObj *This)
{
    IOleCommandTarget *olecmd;
    HRESULT hres;

    if(!(This->update & UPDATE_TITLE))
        return;

    This->update &= ~UPDATE_TITLE;

    if(!This->client)
        return;

    hres = IOleClientSite_QueryInterface(This->client, &IID_IOleCommandTarget, (void**)&olecmd);
    if(SUCCEEDED(hres)) {
        VARIANT title;
        WCHAR empty[] = {0};

        V_VT(&title) = VT_BSTR;
        V_BSTR(&title) = SysAllocString(empty);
        IOleCommandTarget_Exec(olecmd, NULL, OLECMDID_SETTITLE, OLECMDEXECOPT_DONTPROMPTUSER,
                               &title, NULL);
        SysFreeString(V_BSTR(&title));

        IOleCommandTarget_Release(olecmd);
    }
}

static HRESULT WINAPI ControlSite_TranslateAccelerator(IOleControlSite *iface, MSG *pMsg,
                                                       DWORD grfModifiers)
{
    DocHost *This = impl_from_IOleControlSite(iface);
    IOleObject *wb_obj;
    IOleClientSite *clientsite;
    IOleControlSite *controlsite;
    HRESULT hr;

    TRACE("(%p)->(%p, %08x)\n", This, pMsg, grfModifiers);

    hr = IDispatch_QueryInterface(This->disp, &IID_IOleObject, (void**)&wb_obj);
    if(SUCCEEDED(hr)) {
        hr = IOleObject_GetClientSite(wb_obj, &clientsite);
        if(SUCCEEDED(hr)) {
            hr = IOleClientSite_QueryInterface(clientsite, &IID_IOleControlSite, (void**)&controlsite);
            if(SUCCEEDED(hr)) {
                hr = IOleControlSite_TranslateAccelerator(controlsite, pMsg, grfModifiers);
                IOleControlSite_Release(controlsite);
            }
            IOleClientSite_Release(clientsite);
        }
        IOleObject_Release(wb_obj);
    }

    if(FAILED(hr))
        return S_FALSE;
    else
        return hr;
}

static void notify_travellog_update(HTMLDocumentObj *doc)
{
    IOleCommandTarget *cmdtrg;
    HRESULT hres;

    if(!doc->is_webbrowser)
        return;

    /* Don't notify if we were in about: page */
    if(doc->basedoc.window->uri) {
        DWORD scheme;

        hres = IUri_GetScheme(doc->basedoc.window->uri, &scheme);
        if(SUCCEEDED(hres) && scheme == URL_SCHEME_ABOUT)
            return;
    }

    hres = IOleClientSite_QueryInterface(doc->client, &IID_IOleCommandTarget, (void**)&cmdtrg);
    if(SUCCEEDED(hres)) {
        VARIANT vin;

        V_VT(&vin) = VT_I4;
        V_I4(&vin) = 0;

        IOleCommandTarget_Exec(cmdtrg, &CGID_Explorer, CMDID_EXPLORER_UPDATEHISTORY, 0, &vin, NULL);
        IOleCommandTarget_Release(cmdtrg);
    }
}

static HRESULT WINAPI OleObject_SetClientSite(IOleObject *iface, IOleClientSite *pClientSite)
{
    WindowsMediaPlayer *This = impl_from_IOleObject(iface);
    IOleControlSite *control_site;
    HRESULT hres;

    TRACE("(%p)->(%p)\n", This, pClientSite);

    release_client_site(This);
    if(!pClientSite)
        return S_OK;

    IOleClientSite_AddRef(pClientSite);
    This->client_site = pClientSite;

    hres = IOleClientSite_QueryInterface(pClientSite, &IID_IOleControlSite, (void**)&control_site);
    if(SUCCEEDED(hres)) {
        IDispatch *disp;

        hres = IOleControlSite_GetExtendedControl(control_site, &disp);
        if(SUCCEEDED(hres) && disp) {
            FIXME("Use extended control\n");
            IDispatch_Release(disp);
        }

        IOleControlSite_Release(control_site);
    }

    return S_OK;
}

static HRESULT DocHostContainer_exec(DocHost *doc_host, const GUID *cmd_group, DWORD cmdid, DWORD execopt, VARIANT *in,
        VARIANT *out)
{
    WebBrowser *This = impl_from_DocHost(doc_host);
    IOleCommandTarget *cmdtrg = NULL;
    HRESULT hres;

    if(This->client) {
        hres = IOleClientSite_QueryInterface(This->client, &IID_IOleCommandTarget, (void**)&cmdtrg);
        if(FAILED(hres))
            cmdtrg = NULL;
    }

    if(!cmdtrg && This->container) {
        hres = IOleContainer_QueryInterface(This->container, &IID_IOleCommandTarget, (void**)&cmdtrg);
        if(FAILED(hres))
            cmdtrg = NULL;
    }

    if(!cmdtrg)
        return E_NOTIMPL;

    hres = IOleCommandTarget_Exec(cmdtrg, cmd_group, cmdid, execopt, in, out);
    IOleCommandTarget_Release(cmdtrg);
    if(SUCCEEDED(hres))
        TRACE("Exec returned %08x %s\n", hres, debugstr_variant(out));
    else
        FIXME("Exec failed\n");

    return hres;
}

static LRESULT on_timer(HTMLDocumentObj *This)
{
    TRACE("(%p) %x\n", This, This->update);

    KillTimer(This->hwnd, TIMER_ID);

    if(!This->update)
        return 0;

    if(This->update & UPDATE_UI) {
        if(This->hostui)
            IDocHostUIHandler_UpdateUI(This->hostui);

        if(This->client) {
            IOleCommandTarget *cmdtrg;
            HRESULT hres;

            hres = IOleClientSite_QueryInterface(This->client, &IID_IOleCommandTarget,
                                                 (void**)&cmdtrg);
            if(SUCCEEDED(hres)) {
                IOleCommandTarget_Exec(cmdtrg, NULL, OLECMDID_UPDATECOMMANDS,
                                       OLECMDEXECOPT_DONTPROMPTUSER, NULL, NULL);
                IOleCommandTarget_Release(cmdtrg);
            }
        }
    }

    update_title(This);
    This->update = 0;
    return 0;
}

static void handle_docobj_load(HTMLDocumentObj *doc)
{
    IOleCommandTarget *olecmd = NULL;
    HRESULT hres;

    if(!doc->client)
        return;

    hres = IOleClientSite_QueryInterface(doc->client, &IID_IOleCommandTarget, (void**)&olecmd);
    if(SUCCEEDED(hres)) {
        if(doc->download_state) {
            VARIANT state, progress;

            V_VT(&progress) = VT_I4;
            V_I4(&progress) = 0;
            IOleCommandTarget_Exec(olecmd, NULL, OLECMDID_SETPROGRESSPOS,
                    OLECMDEXECOPT_DONTPROMPTUSER, &progress, NULL);

            V_VT(&state) = VT_I4;
            V_I4(&state) = 0;
            IOleCommandTarget_Exec(olecmd, NULL, OLECMDID_SETDOWNLOADSTATE,
                    OLECMDEXECOPT_DONTPROMPTUSER, &state, NULL);
        }

        IOleCommandTarget_Exec(olecmd, &CGID_ShellDocView, 103, 0, NULL, NULL);
        IOleCommandTarget_Exec(olecmd, &CGID_MSHTML, IDM_PARSECOMPLETE, 0, NULL, NULL);
        IOleCommandTarget_Exec(olecmd, NULL, OLECMDID_HTTPEQUIV_DONE, 0, NULL, NULL);

        IOleCommandTarget_Release(olecmd);
    }
    doc->download_state = 0;
}

void prepare_for_binding(HTMLDocument *This, IMoniker *mon, DWORD flags)
{
    HRESULT hres;

    if(This->doc_obj->client) {
        VARIANT silent, offline;

        hres = get_client_disp_property(This->doc_obj->client, DISPID_AMBIENT_SILENT, &silent);
        if(SUCCEEDED(hres)) {
            if(V_VT(&silent) != VT_BOOL)
                WARN("silent = %s\n", debugstr_variant(&silent));
            else if(V_BOOL(&silent))
                FIXME("silent == true\n");
        }

        hres = get_client_disp_property(This->doc_obj->client,
                DISPID_AMBIENT_OFFLINEIFNOTCONNECTED, &offline);
        if(SUCCEEDED(hres)) {
            if(V_VT(&offline) != VT_BOOL)
                WARN("offline = %s\n", debugstr_variant(&offline));
            else if(V_BOOL(&offline))
                FIXME("offline == true\n");
        }
    }

    if(This->window->mon) {
        update_doc(This, UPDATE_TITLE|UPDATE_UI);
    }else {
        update_doc(This, UPDATE_TITLE);
        set_current_mon(This->window, mon, flags);
    }

    if(This->doc_obj->client) {
        IOleCommandTarget *cmdtrg = NULL;

        hres = IOleClientSite_QueryInterface(This->doc_obj->client, &IID_IOleCommandTarget,
                (void**)&cmdtrg);
        if(SUCCEEDED(hres)) {
            VARIANT var, out;

            if(flags & BINDING_NAVIGATED) {
                V_VT(&var) = VT_UNKNOWN;
                V_UNKNOWN(&var) = (IUnknown*)&This->window->base.IHTMLWindow2_iface;
                V_VT(&out) = VT_EMPTY;
                hres = IOleCommandTarget_Exec(cmdtrg, &CGID_ShellDocView, 63, 0, &var, &out);
                if(SUCCEEDED(hres))
                    VariantClear(&out);
            }else if(!(flags & BINDING_FROMHIST)) {
                V_VT(&var) = VT_I4;
                V_I4(&var) = 0;
                IOleCommandTarget_Exec(cmdtrg, &CGID_ShellDocView, 37, 0, &var, NULL);
            }

            IOleCommandTarget_Release(cmdtrg);
        }
    }
}

static HRESULT WINAPI PersistHistory_LoadHistory(IPersistHistory *iface, IStream *pStream, IBindCtx *pbc)
{
    HTMLDocument *This = impl_from_IPersistHistory(iface);
    ULONG str_len, read;
    WCHAR *uri_str;
    IUri *uri;
    HRESULT hres;

    TRACE("(%p)->(%p %p)\n", This, pStream, pbc);

    if(!This->window) {
        FIXME("No current window\n");
        return E_UNEXPECTED;
    }

    if(pbc)
        FIXME("pbc not supported\n");

    if(This->doc_obj->client) {
        IOleCommandTarget *cmdtrg = NULL;

        hres = IOleClientSite_QueryInterface(This->doc_obj->client, &IID_IOleCommandTarget,
                (void**)&cmdtrg);
        if(SUCCEEDED(hres)) {
            IOleCommandTarget_Exec(cmdtrg, &CGID_ShellDocView, 138, 0, NULL, NULL);
            IOleCommandTarget_Release(cmdtrg);
        }
    }

    hres = IStream_Read(pStream, &str_len, sizeof(str_len), &read);
    if(FAILED(hres))
        return hres;
    if(read != sizeof(str_len))
        return E_FAIL;

    uri_str = heap_alloc((str_len+1)*sizeof(WCHAR));
    if(!uri_str)
        return E_OUTOFMEMORY;

    hres = IStream_Read(pStream, uri_str, str_len*sizeof(WCHAR), &read);
    if(SUCCEEDED(hres) && read != str_len*sizeof(WCHAR))
        hres = E_FAIL;
    if(SUCCEEDED(hres)) {
        uri_str[str_len] = 0;
        hres = create_uri(uri_str, 0, &uri);
    }
    heap_free(uri_str);
    if(FAILED(hres))
        return hres;

    hres = load_uri(This->window, uri, BINDING_FROMHIST);
    IUri_Release(uri);
    return hres;
}

void notif_focus(HTMLDocument *This)
{
    IOleControlSite *site;
    HRESULT hres;

    hres = IOleClientSite_QueryInterface(This->client, &IID_IOleControlSite, (void**)&site);
    if(FAILED(hres))
        return;

    IOleControlSite_OnFocus(site, This->focus);
    IOleControlSite_Release(site);
}

static HRESULT activate_inplace(WebBrowser *This, IOleClientSite *active_site, HWND parent_hwnd)
{
    HRESULT hres;

    if(This->inplace)
        return S_OK;

    if(!active_site)
        return E_INVALIDARG;

    hres = IOleClientSite_QueryInterface(active_site, &IID_IOleInPlaceSite,
                                         (void**)&This->inplace);
    if(FAILED(hres)) {
        WARN("Could not get IOleInPlaceSite\n");
        return hres;
    }

    hres = IOleInPlaceSite_CanInPlaceActivate(This->inplace);
    if(hres != S_OK) {
        WARN("CanInPlaceActivate returned: %08lx\n", hres);
        IOleInPlaceSite_Release(This->inplace);
        return E_FAIL;
    }

    hres = IOleInPlaceSite_GetWindow(This->inplace, &This->iphwnd);
    if(FAILED(hres))
        This->iphwnd = parent_hwnd;

    IOleInPlaceSite_OnInPlaceActivate(This->inplace);

    IOleInPlaceSite_GetWindowContext(This->inplace, &This->frame, &This->uiwindow,
                                     &This->pos_rect, &This->clip_rect,
                                     &This->frameinfo);

    SetWindowPos(This->shell_embedding_hwnd, NULL,
                 This->pos_rect.left, This->pos_rect.top,
                 This->pos_rect.right-This->pos_rect.left,
                 This->pos_rect.bottom-This->pos_rect.top,
                 SWP_NOZORDER | SWP_SHOWWINDOW);

    if(This->client) {
        IOleClientSite_ShowObject(This->client);
        IOleClientSite_GetContainer(This->client, &This->container);
    }

    if(This->frame)
        IOleInPlaceFrame_GetWindow(This->frame, &This->frame_hwnd);

    return S_OK;
}

static void deactivate_window(WindowsMediaPlayer *This)
{
    IOleInPlaceSite *ip_site;
    HRESULT hres;

    hres = IOleClientSite_QueryInterface(This->client_site, &IID_IOleInPlaceSite, (void**)&ip_site);
    if(SUCCEEDED(hres)) {
        IOleInPlaceSite_OnInPlaceDeactivate(ip_site);
        IOleInPlaceSite_Release(ip_site);
    }

    DestroyWindow(This->hwnd);
    This->hwnd = NULL;
}

static void notify_on_focus(WebBrowser *This, BOOL got_focus)
{
    IOleControlSite *control_site;
    HRESULT hres;

    if(!This->client)
        return;

    hres = IOleClientSite_QueryInterface(This->client, &IID_IOleControlSite, (void**)&control_site);
    if(FAILED(hres))
        return;

    IOleControlSite_OnFocus(control_site, got_focus);
    IOleControlSite_Release(control_site);
}