shellfs.h

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/*
 * Copyright 2003, 2004, 2005 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
 //
 // shellfs.h
 //
 // Martin Fuchs, 23.07.2003
 //


struct ShellEntry : public Entry
{
    ShellEntry(Entry* parent, LPITEMIDLIST shell_path) : Entry(parent, ET_SHELL), _pidl(shell_path) {}
    ShellEntry(Entry* parent, const ShellPath& shell_path) : Entry(parent, ET_SHELL), _pidl(shell_path) {}

    virtual bool        get_path(PTSTR path, size_t path_count) const;
    virtual ShellPath   create_absolute_pidl() const;
    virtual HRESULT     GetUIObjectOf(HWND hWnd, REFIID riid, LPVOID* ppvOut);
    virtual BOOL        launch_entry(HWND hwnd, UINT nCmdShow=SW_SHOWNORMAL);
    virtual HRESULT     do_context_menu(HWND hwnd, const POINT& pptScreen, CtxMenuInterfaces& cm_ifs);
    virtual ShellFolder get_shell_folder() const;

    IShellFolder*       get_parent_folder() const;

    ShellPath   _pidl;  // parent relative PIDL

protected:
    ShellEntry(LPITEMIDLIST shell_path) : Entry(ET_SHELL), _pidl(shell_path) {}
    ShellEntry(const ShellPath& shell_path) : Entry(ET_SHELL), _pidl(shell_path) {}
};


struct ShellDirectory : public ShellEntry, public Directory
{
    ShellDirectory(ShellFolder& root_folder, const ShellPath& shell_path, HWND hwnd)
     :  ShellEntry(shell_path),
        _folder(root_folder, shell_path),
        _hwnd(hwnd)
    {
        CONTEXT("ShellDirectory::ShellDirectory()");

        lstrcpy(_data.cFileName, root_folder.get_name(shell_path, SHGDN_FORADDRESSBAR));
        _data.dwFileAttributes = FILE_ATTRIBUTE_DIRECTORY;
        _shell_attribs = SFGAO_FOLDER;

        ShellFolder subfolder(root_folder, shell_path);
        IShellFolder* pFolder = subfolder;
        pFolder->AddRef();
        _path = pFolder;
    }

    explicit ShellDirectory(ShellDirectory* parent, LPITEMIDLIST shell_path, HWND hwnd)
     :  ShellEntry(parent, shell_path),
        _folder(parent->_folder, shell_path),
        _hwnd(hwnd)
    {
        /* not neccessary - the caller will fill the info
        lstrcpy(_data.cFileName, _folder.get_name(shell_path));
        _data.dwFileAttributes = FILE_ATTRIBUTE_DIRECTORY;
        _shell_attribs = SFGAO_FOLDER; */

        _folder->AddRef();
        _path = _folder;
    }

    ShellDirectory(const ShellDirectory& other)
     :  ShellEntry(other),
        Directory(other),
        _folder(other._folder),
        _hwnd(other._hwnd)
    {
        IShellFolder* pFolder = (IShellFolder*)_path;
        pFolder->AddRef();
    }

    ~ShellDirectory()
    {
        IShellFolder* pFolder = (IShellFolder*)_path;
        _path = NULL;
        pFolder->Release();
    }

    virtual void read_directory(int scan_flags=0);
    virtual const void* get_next_path_component(const void*) const;
    virtual Entry* find_entry(const void*);

    virtual bool get_path(PTSTR path, size_t path_count) const;
    virtual ShellFolder get_shell_folder() const;

    int extract_icons(ICONCACHE_FLAGS flags);

    ShellFolder _folder;
    HWND    _hwnd;

protected:
    bool    fill_w32fdata_shell(LPCITEMIDLIST pidl, SFGAOF attribs, WIN32_FIND_DATA*, BY_HANDLE_FILE_INFORMATION*, bool do_access=true);
};


inline IShellFolder* ShellEntry::get_parent_folder() const
{
    if (_up)
        return static_cast<ShellDirectory*>(_up)->_folder;
    else
        return GetDesktopFolder();
}