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// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0.If a copy of the MPL was not distributed with this
#include <exdisp.h>
#include <mshtmhst.h>
#include <vector>
#include <string>
class WebBrowser final :
/* public IUnknown, */
/* public IOleWindow, */
public IOleInPlaceSite,
public IOleClientSite,
public IDropTarget,
public IStorage,
public IDocHostUIHandler,
public IDocHostShowUI,
public IDispatch {
public:
/////////////////////////////////////////////////////////////////////////////
// Our own methods
/////////////////////////////////////////////////////////////////////////////
WebBrowser(HWND hWndParent);
~WebBrowser();
WebBrowser(const WebBrowser&) = delete;
WebBrowser& operator=(const WebBrowser&) = delete;
void Shutdown();
bool IsInitialized();
HRESULT ActiveObjectTranslateAccelerator(bool tab, LPMSG lpmsg);
void SetRect(const RECT& _rc);
void Resize(DWORD width, DWORD height);
void Navigate(wchar_t* szUrl);
using CustomFunction = void (*)(void* context, VARIANT parameter,
VARIANT* retVal);
void AddCustomFunction(wchar_t* name, CustomFunction function, void* arg);
/////////////////////////////////////////////////////////////////////////////
// Data members
/////////////////////////////////////////////////////////////////////////////
private:
IOleObject* mOleObject = nullptr;
IOleInPlaceObject* mOleInPlaceObject = nullptr;
IOleInPlaceActiveObject* mOleInPlaceActiveObject = nullptr;
IWebBrowser2* mWebBrowser2 = nullptr;
LONG mComRefCount = 0;
RECT mRect = {0, 0, 0, 0};
HWND mHwndParent = nullptr;
struct CustomFunctionRecord {
std::wstring mName;
CustomFunction mFunction;
void* mArg;
};
std::vector<CustomFunctionRecord> mCustomFunctions;
//////////////////////////////////////////////////////////////////////////////
// COM interface methods
//////////////////////////////////////////////////////////////////////////////
public:
// IUnknown
HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid,
void** ppvObject) override;
ULONG STDMETHODCALLTYPE AddRef() override;
ULONG STDMETHODCALLTYPE Release() override;
// IOleWindow
HRESULT STDMETHODCALLTYPE
GetWindow(__RPC__deref_out_opt HWND* phwnd) override;
HRESULT STDMETHODCALLTYPE ContextSensitiveHelp(BOOL fEnterMode) override;
// IOleInPlaceSite
HRESULT STDMETHODCALLTYPE CanInPlaceActivate() override;
HRESULT STDMETHODCALLTYPE OnInPlaceActivate() override;
HRESULT STDMETHODCALLTYPE OnUIActivate() override;
HRESULT STDMETHODCALLTYPE GetWindowContext(
__RPC__deref_out_opt IOleInPlaceFrame** ppFrame,
__RPC__deref_out_opt IOleInPlaceUIWindow** ppDoc,
__RPC__out LPRECT lprcPosRect, __RPC__out LPRECT lprcClipRect,
__RPC__inout LPOLEINPLACEFRAMEINFO lpFrameInfo) override;
HRESULT STDMETHODCALLTYPE Scroll(SIZE scrollExtant) override;
HRESULT STDMETHODCALLTYPE OnUIDeactivate(BOOL fUndoable) override;
HRESULT STDMETHODCALLTYPE OnInPlaceDeactivate() override;
HRESULT STDMETHODCALLTYPE DiscardUndoState() override;
HRESULT STDMETHODCALLTYPE DeactivateAndUndo() override;
HRESULT STDMETHODCALLTYPE
OnPosRectChange(__RPC__in LPCRECT lprcPosRect) override;
// IOleClientSite
HRESULT STDMETHODCALLTYPE SaveObject() override;
HRESULT STDMETHODCALLTYPE
GetMoniker(DWORD dwAssign, DWORD dwWhichMoniker,
__RPC__deref_out_opt IMoniker** ppmk) override;
HRESULT STDMETHODCALLTYPE
GetContainer(__RPC__deref_out_opt IOleContainer** ppContainer) override;
HRESULT STDMETHODCALLTYPE ShowObject() override;
HRESULT STDMETHODCALLTYPE OnShowWindow(BOOL fShow) override;
HRESULT STDMETHODCALLTYPE RequestNewObjectLayout() override;
// IDropTarget
HRESULT STDMETHODCALLTYPE DragEnter(__RPC__in_opt IDataObject* pDataObj,
DWORD grfKeyState, POINTL pt,
__RPC__inout DWORD* pdwEffect) override;
HRESULT STDMETHODCALLTYPE DragOver(DWORD grfKeyState, POINTL pt,
__RPC__inout DWORD* pdwEffect) override;
HRESULT STDMETHODCALLTYPE DragLeave() override;
HRESULT STDMETHODCALLTYPE Drop(__RPC__in_opt IDataObject* pDataObj,
DWORD grfKeyState, POINTL pt,
__RPC__inout DWORD* pdwEffect) override;
// IStorage
HRESULT STDMETHODCALLTYPE CreateStream(
__RPC__in_string const OLECHAR* pwcsName, DWORD grfMode, DWORD reserved1,
DWORD reserved2, __RPC__deref_out_opt IStream** ppstm) override;
HRESULT STDMETHODCALLTYPE OpenStream(const OLECHAR* pwcsName, void* reserved1,
DWORD grfMode, DWORD reserved2,
IStream** ppstm) override;
HRESULT STDMETHODCALLTYPE CreateStorage(
__RPC__in_string const OLECHAR* pwcsName, DWORD grfMode, DWORD reserved1,
DWORD reserved2, __RPC__deref_out_opt IStorage** ppstg) override;
HRESULT STDMETHODCALLTYPE
OpenStorage(__RPC__in_opt_string const OLECHAR* pwcsName,
__RPC__in_opt IStorage* pstgPriority, DWORD grfMode,
__RPC__deref_opt_in_opt SNB snbExclude, DWORD reserved,
__RPC__deref_out_opt IStorage** ppstg) override;
HRESULT STDMETHODCALLTYPE CopyTo(DWORD ciidExclude, const IID* rgiidExclude,
__RPC__in_opt SNB snbExclude,
IStorage* pstgDest) override;
HRESULT STDMETHODCALLTYPE MoveElementTo(
__RPC__in_string const OLECHAR* pwcsName,
__RPC__in_opt IStorage* pstgDest,
__RPC__in_string const OLECHAR* pwcsNewName, DWORD grfFlags) override;
HRESULT STDMETHODCALLTYPE Commit(DWORD grfCommitFlags) override;
HRESULT STDMETHODCALLTYPE Revert(void) override;
HRESULT STDMETHODCALLTYPE EnumElements(DWORD reserved1, void* reserved2,
DWORD reserved3,
IEnumSTATSTG** ppenum) override;
HRESULT STDMETHODCALLTYPE
DestroyElement(__RPC__in_string const OLECHAR* pwcsName) override;
HRESULT STDMETHODCALLTYPE
RenameElement(__RPC__in_string const OLECHAR* pwcsOldName,
__RPC__in_string const OLECHAR* pwcsNewName) override;
HRESULT STDMETHODCALLTYPE
SetElementTimes(__RPC__in_opt_string const OLECHAR* pwcsName,
__RPC__in_opt const FILETIME* pctime,
__RPC__in_opt const FILETIME* patime,
__RPC__in_opt const FILETIME* pmtime) override;
HRESULT STDMETHODCALLTYPE SetClass(__RPC__in REFCLSID clsid) override;
HRESULT STDMETHODCALLTYPE SetStateBits(DWORD grfStateBits,
DWORD grfMask) override;
HRESULT STDMETHODCALLTYPE Stat(__RPC__out STATSTG* pstatstg,
DWORD grfStatFlag) override;
// IDocHostUIHandler
HRESULT STDMETHODCALLTYPE ShowContextMenu(
_In_ DWORD dwID, _In_ POINT* ppt, _In_ IUnknown* pcmdtReserved,
_In_ IDispatch* pdispReserved) override;
HRESULT STDMETHODCALLTYPE GetHostInfo(_Inout_ DOCHOSTUIINFO* pInfo) override;
HRESULT STDMETHODCALLTYPE ShowUI(_In_ DWORD dwID,
_In_ IOleInPlaceActiveObject* pActiveObject,
_In_ IOleCommandTarget* pCommandTarget,
_In_ IOleInPlaceFrame* pFrame,
_In_ IOleInPlaceUIWindow* pDoc) override;
HRESULT STDMETHODCALLTYPE HideUI() override;
HRESULT STDMETHODCALLTYPE UpdateUI() override;
HRESULT STDMETHODCALLTYPE EnableModeless(BOOL fEnable) override;
HRESULT STDMETHODCALLTYPE OnDocWindowActivate(BOOL fActivate) override;
HRESULT STDMETHODCALLTYPE OnFrameWindowActivate(BOOL fActivate) override;
HRESULT STDMETHODCALLTYPE ResizeBorder(_In_ LPCRECT prcBorder,
_In_ IOleInPlaceUIWindow* pUIWindow,
_In_ BOOL fRameWindow) override;
HRESULT STDMETHODCALLTYPE TranslateAccelerator(LPMSG lpMsg,
const GUID* pguidCmdGroup,
DWORD nCmdID) override;
HRESULT STDMETHODCALLTYPE GetOptionKeyPath(_Out_ LPOLESTR* pchKey,
DWORD dw) override;
HRESULT STDMETHODCALLTYPE
GetDropTarget(_In_ IDropTarget* pDropTarget,
_Outptr_ IDropTarget** ppDropTarget) override;
HRESULT STDMETHODCALLTYPE
GetExternal(_Outptr_result_maybenull_ IDispatch** ppDispatch) override;
HRESULT STDMETHODCALLTYPE TranslateUrl(DWORD dwTranslate,
_In_ LPWSTR pchURLIn,
_Outptr_ LPWSTR* ppchURLOut) override;
HRESULT STDMETHODCALLTYPE
FilterDataObject(_In_ IDataObject* pDO,
_Outptr_result_maybenull_ IDataObject** ppDORet) override;
// IDocHostShowUI
HRESULT STDMETHODCALLTYPE ShowMessage(
/* [in] */ HWND hwnd,
/* [annotation][in] */
_In_ LPOLESTR lpstrText,
/* [annotation][in] */
_In_ LPOLESTR lpstrCaption,
/* [in] */ DWORD dwType,
/* [annotation][in] */
_In_ LPOLESTR lpstrHelpFile,
/* [in] */ DWORD dwHelpContext,
/* [out] */ LRESULT* plResult) override;
HRESULT STDMETHODCALLTYPE ShowHelp(
/* [in] */ HWND hwnd,
/* [annotation][in] */
_In_ LPOLESTR pszHelpFile,
/* [in] */ UINT uCommand,
/* [in] */ DWORD dwData,
/* [in] */ POINT ptMouse,
/* [out] */ IDispatch* pDispatchObjectHit) override;
// IDispatch
HRESULT STDMETHODCALLTYPE GetTypeInfoCount(
/* [out] */ __RPC__out UINT* pctinfo) override;
HRESULT STDMETHODCALLTYPE GetTypeInfo(
/* [in] */ UINT iTInfo,
/* [in] */ LCID lcid,
/* [out] */ __RPC__deref_out_opt ITypeInfo** ppTInfo) override;
HRESULT STDMETHODCALLTYPE GetIDsOfNames(
/* [in] */ __RPC__in REFIID riid,
/* [size_is][in] */ __RPC__in_ecount_full(cNames) LPOLESTR* rgszNames,
/* [range][in] */ __RPC__in_range(0, 16384) UINT cNames,
/* [in] */ LCID lcid,
/* [size_is][out] */ __RPC__out_ecount_full(cNames) DISPID* rgDispId)
override;
/* [local] */ HRESULT STDMETHODCALLTYPE Invoke(
/* [annotation][in] */
_In_ DISPID dispIdMember,
/* [annotation][in] */
_In_ REFIID riid,
/* [annotation][in] */
_In_ LCID lcid,
/* [annotation][in] */
_In_ WORD wFlags,
/* [annotation][out][in] */
_In_ DISPPARAMS* pDispParams,
/* [annotation][out] */
_Out_opt_ VARIANT* pVarResult,
/* [annotation][out] */
_Out_opt_ EXCEPINFO* pExcepInfo,
/* [annotation][out] */
_Out_opt_ UINT* puArgErr) override;
};