WebBrowser.h

#pragma once
//#include <Windows.h>
//#include <crtdbg.h>
#include "OleIdl.h"
#include <string>
#include "IBrowserMsgListener.h"
#define NOTIMPLEMENTED _ASSERT(0); return(E_NOTIMPL)

namespace ParaEngine
{
    class LauncherApp;
    class WBClientSite;

    class WebBrowser:public IDispatch
    {
    public:
        WebBrowser(HWND hParentWnd,IBrowserMsgListener* pApp);
        ~WebBrowser();

        static void RegisterDefaultBrowserWnd(HINSTANCE instance);

        void Cleanup();
        void UnembedBrowser();
        void ShowHTMLPage(LPCTSTR url);
        HWND GetHWND(){return m_hWnd;}
        void ChangeWindowSize(int nWidth, int nHeight);
        void Refresh();
        void GoBack();
        void GoForward();
        void Stop();

        std::string get_LocationURL();

        // The class name of our Window to host the browser. It can be anything of your choosing.
        static WCHAR* g_BrowserClassName;

        //IDispatch Members
        STDMETHODIMP Invoke (DISPID dispidMember, REFIID riid, LCID lcid, WORD wFlags, 
            DISPPARAMS* pDispParams,VARIANT* pvarResult, EXCEPINFO* pExcepInfo, UINT* puArgErr);

        virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, LPVOID *ppvObj)    
        {
            HRESULT ret = S_OK;
            if(riid == IID_IUnknown)
                *ppvObj = static_cast<IUnknown *>(this);
            else if(riid == IID_IDispatch)
                *ppvObj = static_cast<IDispatch *>(this);
            else
                *ppvObj = 0, ret = E_NOINTERFACE;;
            return ret;                
        }

        virtual ULONG   STDMETHODCALLTYPE AddRef(void){ return 1; }
        virtual ULONG   STDMETHODCALLTYPE Release(void){ return 1; }
        virtual HRESULT STDMETHODCALLTYPE GetTypeInfoCount(unsigned int FAR* pctinfo){ return E_NOTIMPL; }
        virtual HRESULT STDMETHODCALLTYPE GetTypeInfo(unsigned int iTInfo, LCID lcid, ITypeInfo FAR* FAR* ppTInfo){ return E_NOTIMPL; }
        virtual HRESULT STDMETHODCALLTYPE GetIDsOfNames(REFIID riid, OLECHAR FAR* FAR* rgszNames, unsigned int cNames, LCID lcid, DISPID FAR* rgDispId){ return E_NOTIMPL; }

        bool FindText(const std::string& sFindText);

        void WriteContent(const std::string& sContent);

        void GetContent(std::string& sContent);

        static LRESULT CALLBACK browserWindowProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam );
    private:
        IOleObject* m_pBrowserObj;
        HWND m_hWnd;
        bool m_ignoreDownLoadComplete;
        bool m_navErr;
        IBrowserMsgListener* m_pMsgListener;
        WBClientSite* m_pClientSite;
    };
}