CFontFolderViewCB.h

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/*
 * PROJECT:     ReactOS Font Shell Extension
 * LICENSE:     GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
 * PURPOSE:     Fonts folder view callback implementation
 * COPYRIGHT:   Copyright 2026 Katayama Hirofumi MZ (katayama.hirofumi.mz@gmail.com)
 */
 
#pragma once
 
class CFontFolderViewCB
    : public CComObjectRootEx<CComMultiThreadModelNoCS>
    , public IShellFolderViewCB
{
    CFontExt* m_pFontExt = nullptr; // Not ref-counted!
    IShellView* m_pShellView = nullptr; // Not ref-counted!
    HWND m_hwndView = nullptr;
    CComHeapPtr<ITEMIDLIST> m_pidlParent;
    CComHeapPtr<ITEMIDLIST> m_pidl0;
    CComHeapPtr<ITEMIDLIST> m_pidl1;
 
    HRESULT TranslatePidl(LPITEMIDLIST* ppidlNew, LPCITEMIDLIST pidl);
    void TranslateTwoPIDLs(PIDLIST_ABSOLUTE* pidls);
    BOOL FilterEvent(LONG lEvent) const;
 
public:
    CFontFolderViewCB() { }
    void Initialize(CFontExt* pFontExt, IShellView *psv, LPCITEMIDLIST pidlParent);
 
    // IShellFolderViewCB
    STDMETHOD(MessageSFVCB)(UINT uMsg, WPARAM wParam, LPARAM lParam) override;
 
    DECLARE_NO_REGISTRY()
    DECLARE_NOT_AGGREGATABLE(CFontFolderViewCB)
    BEGIN_COM_MAP(CFontFolderViewCB)
        COM_INTERFACE_ENTRY_IID(IID_IShellFolderViewCB, IShellFolderViewCB)
    END_COM_MAP()
};