shellbrowserimpl.h

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/*
 * Copyright 2003 Martin Fuchs
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */


 //
 // Explorer clone
 //
 // shellbrowserimpl.h
 //
 // Martin Fuchs, 23.07.2003
 //
 // Credits: Thanks to Leon Finker for his explorer cabinet window example
 //

#ifdef __MINGW32__
#include "servprov.h"   // for IServiceProvider
#include "docobj.h"     // for IOleCommandTarget
#endif


struct IShellBrowserImpl
 :  public IShellBrowser,
    public ICommDlgBrowser,
    public IServiceProvider,
    public IOleCommandTarget
{
    IShellBrowserImpl()
     :  _dwRef(0)
    {
    }

    virtual ~IShellBrowserImpl()
    {
    }

    virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, void** ppvObject);

    virtual ULONG STDMETHODCALLTYPE AddRef() {return ++_dwRef;}
    virtual ULONG STDMETHODCALLTYPE Release() {return --_dwRef;}  //not heap based

    // *** IOleWindow methods ***
    virtual HRESULT STDMETHODCALLTYPE ContextSensitiveHelp(BOOL fEnterMode) {return E_NOTIMPL;}

    // *** ICommDlgBrowser methods ***
    virtual HRESULT STDMETHODCALLTYPE OnDefaultCommand(IShellView* ppshv);

    virtual HRESULT STDMETHODCALLTYPE OnStateChange(IShellView* ppshv, ULONG uChange)
    {   //handle selection, rename, focus if needed
        return E_NOTIMPL;
    }

    virtual HRESULT STDMETHODCALLTYPE IncludeObject(IShellView* ppshv, LPCITEMIDLIST pidl)
    {   //filter files if needed
        return S_OK;
    }

    // *** IShellBrowser methods *** (same as IOleInPlaceFrame)
    virtual HRESULT STDMETHODCALLTYPE InsertMenusSB(HMENU hmenuShared, LPOLEMENUGROUPWIDTHS lpMenuWidths) {return E_NOTIMPL;}
    virtual HRESULT STDMETHODCALLTYPE SetMenuSB(HMENU hmenuShared, HOLEMENU holemenuReserved, HWND hwndActiveObject) {return E_NOTIMPL;}
    virtual HRESULT STDMETHODCALLTYPE RemoveMenusSB(HMENU hmenuShared) {return E_NOTIMPL;}
    virtual HRESULT STDMETHODCALLTYPE SetStatusTextSB(LPCOLESTR lpszStatusText) {return E_NOTIMPL;}
    virtual HRESULT STDMETHODCALLTYPE EnableModelessSB(BOOL fEnable) {return E_NOTIMPL;}
    virtual HRESULT STDMETHODCALLTYPE BrowseObject(LPCITEMIDLIST pidl, UINT wFlags) {return E_NOTIMPL;}
    virtual HRESULT STDMETHODCALLTYPE GetViewStateStream(DWORD grfMode, LPSTREAM* ppStrm) {return E_NOTIMPL;}
    virtual HRESULT STDMETHODCALLTYPE OnViewWindowActive(IShellView* ppshv) {return E_NOTIMPL;}
    virtual HRESULT STDMETHODCALLTYPE SetToolbarItems(LPTBBUTTON lpButtons, UINT nButtons, UINT uFlags) {return E_NOTIMPL;}
    virtual HRESULT STDMETHODCALLTYPE TranslateAcceleratorSB(LPMSG lpmsg, WORD wID) {return S_OK;}

    // IServiceProvider
    virtual HRESULT STDMETHODCALLTYPE QueryService(REFGUID guidService, REFIID riid, void** ppvObject);

    // IOleCommandTarget
    virtual HRESULT STDMETHODCALLTYPE QueryStatus(const GUID *pguidCmdGroup, ULONG cCmds, OLECMD prgCmds[], OLECMDTEXT* pCmdText);
    virtual HRESULT STDMETHODCALLTYPE Exec(const GUID *pguidCmdGroup, DWORD nCmdID, DWORD nCmdexecopt, VARIANT *pvaIn, VARIANT *pvaOut);

protected:
    DWORD   _dwRef;

    virtual HRESULT OnDefaultCommand(LPIDA pida) {return E_NOTIMPL;}
};

#ifndef WM_GETISHELLBROWSER
#define WM_GETISHELLBROWSER (WM_USER+7)
#endif