reactos/subsys/system/explorer/shell/shellbrowser.h

   1 /*
   2  * Copyright 2003, 2004, 2005 Martin Fuchs
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19
  20  //
  21  // Explorer clone
  22  //
  23  // shellbrowser.h
  24  //
  25  // Martin Fuchs, 23.07.2003
  26  //
  27
  28 #include "../utility/treedroptarget.h"
  29 #include "../utility/shellbrowserimpl.h"
  30
  31
  32  /// information structure to hold current shell folder information
  33 struct ShellPathInfo
  34 {
  35         ShellPathInfo(int mode=0) : _open_mode(mode) {}
  36
  37         ShellPathInfo(const ShellChildWndInfo& info)
  38          :      _shell_path(info._shell_path),
  39                 _root_shell_path(info._root_shell_path),
  40                 _open_mode(info._open_mode)
  41         {
  42         }
  43
  44         ShellPath       _shell_path;
  45         ShellPath       _root_shell_path;
  46
  47         int                     _open_mode;     //OPEN_WINDOW_MODE
  48 };
  49
  50
  51 struct BrowserCallback
  52 {
  53         virtual ~BrowserCallback() {}
  54         virtual void entry_selected(Entry* entry) = 0;
  55 };
  56
  57
  58  /// Implementation of IShellBrowserImpl interface in explorer child windows
  59 struct ShellBrowser : public IShellBrowserImpl
  60 #ifndef __MINGW32__     // IShellFolderViewCB missing in MinGW (as of 25.09.2005)
  61         ,       public IComSrvBase<IShellFolderViewCB, ShellBrowser>, public SimpleComObject
  62 #endif
  63 {
  64         ShellBrowser(HWND hwnd, HWND hwndFrame, HWND left_hwnd, WindowHandle& right_hwnd, ShellPathInfo& create_info,
  65                                         BrowserCallback* cb, CtxMenuInterfaces& cm_ifs);
  66         virtual ~ShellBrowser();
  67
  68         //IOleWindow
  69         virtual HRESULT STDMETHODCALLTYPE GetWindow(HWND* lphwnd)
  70         {
  71                 *lphwnd = _hwnd;
  72                 return S_OK;
  73         }
  74
  75         //IShellBrowser
  76         virtual HRESULT STDMETHODCALLTYPE QueryActiveShellView(IShellView** ppshv)
  77         {
  78                 _pShellView->AddRef();
  79                 *ppshv = _pShellView;
  80                 return S_OK;
  81         }
  82
  83         virtual HRESULT STDMETHODCALLTYPE GetControlWindow(UINT id, HWND* lphwnd)
  84         {
  85                 if (!lphwnd)
  86                         return E_POINTER;
  87
  88                 if (id == FCW_TREE) {
  89                         *lphwnd = _left_hwnd;
  90                         return S_OK;
  91                 }
  92
  93                 HWND hwnd = (HWND)SendMessage(_hwndFrame, PM_GET_CONTROLWINDOW, id, 0);
  94
  95                 if (hwnd) {
  96                         *lphwnd = hwnd;
  97                         return S_OK;
  98                 }
  99
 100                 return E_NOTIMPL;
 101         }
 102
 103         virtual HRESULT STDMETHODCALLTYPE SendControlMsg(UINT id, UINT uMsg, WPARAM wParam, LPARAM lParam, LRESULT* pret)
 104         {
 105                 if (!pret)
 106                         return E_POINTER;
 107
 108                 HWND hstatusbar = (HWND)SendMessage(_hwndFrame, PM_GET_CONTROLWINDOW, id, 0);
 109
 110                 if (hstatusbar) {
 111                         *pret = ::SendMessage(hstatusbar, uMsg, wParam, lParam);
 112                         return S_OK;
 113                 }
 114
 115                 return E_NOTIMPL;
 116         }
 117
 118         const Root& get_root() const {return _root;}
 119
 120         void    OnTreeGetDispInfo(int idCtrl, LPNMHDR pnmh);
 121         void    OnTreeItemExpanding(int idCtrl, LPNMTREEVIEW pnmtv);
 122         void    OnTreeItemRClick(int idCtrl, LPNMHDR pnmh);
 123         void    OnTreeItemSelected(int idCtrl, LPNMTREEVIEW pnmtv);
 124
 125         void    Init();
 126
 127         int             InsertSubitems(HTREEITEM hParentItem, Entry* entry, IShellFolder* pParentFolder);
 128
 129         bool    jump_to_pidl(LPCITEMIDLIST pidl);
 130
 131         HRESULT OnDefaultCommand(LPIDA pida);
 132
 133         void    UpdateFolderView(IShellFolder* folder);
 134         HTREEITEM select_entry(HTREEITEM hitem, Entry* entry, bool expand=true);
 135
 136         bool    select_folder(Entry* entry, bool expand);
 137
 138          // for SDIMainFrame
 139         void    jump_to(LPCITEMIDLIST pidl);
 140
 141         void    invalidate_cache();
 142
 143 protected:
 144         HWND    _hwnd;
 145         HWND    _left_hwnd;
 146         WindowHandle& _right_hwnd;
 147         ShellPathInfo& _create_info;
 148         HIMAGELIST      _himl;
 149         HIMAGELIST      _himl_old;
 150         BrowserCallback* _callback;
 151
 152         HWND     _hwndFrame;
 153         ShellFolder     _folder;
 154
 155         IShellView*     _pShellView;    // current hosted shellview
 156         TreeDropTarget* _pDropTarget;
 157
 158         HTREEITEM _last_sel;
 159
 160         Root    _root;
 161         ShellDirectory* _cur_dir;
 162
 163         CtxMenuInterfaces& _cm_ifs;
 164
 165         void    InitializeTree();
 166         bool    InitDragDrop();
 167
 168 #ifndef __MINGW32__     // IShellFolderViewCB missing in MinGW (as of 25.09.2005)
 169         typedef IComSrvBase<IShellFolderViewCB, ShellBrowser> super;
 170
 171          // IShellFolderViewCB
 172         virtual HRESULT STDMETHODCALLTYPE MessageSFVCB(UINT uMsg, WPARAM wParam, LPARAM lParam);
 173 #endif
 174
 175         map<int, int> _image_map;
 176
 177         int             get_image_idx(int icon_id);
 178 };
 179
 180
 181 #define C_DRIVE_STR TEXT("C:\\")
 182
 183  // work around GCC's wide string constant bug
 184 #ifdef __GNUC__
 185 extern const LPCTSTR C_DRIVE;
 186 #else
 187 #define C_DRIVE C_DRIVE_STR
 188 #endif
 189
 190 template<typename BASE> struct ShellBrowserChildT
 191  : public BASE, public BrowserCallback
 192 {
 193         typedef BASE super;
 194
 195          // constructor for SDIMainFrame
 196         ShellBrowserChildT(HWND hwnd)
 197          :      super(hwnd)
 198         {
 199         }
 200
 201          // constructor for MDIShellBrowserChild
 202         ShellBrowserChildT(HWND hwnd, const ShellChildWndInfo& info)
 203          :      super(hwnd, info)
 204         {
 205         }
 206
 207 protected:
 208         auto_ptr<ShellBrowser> _shellBrowser;
 209
 210         LRESULT WndProc(UINT nmsg, WPARAM wparam, LPARAM lparam)
 211         {
 212                 switch(nmsg) {
 213                   case PM_GET_SHELLBROWSER_PTR:
 214                         return (LRESULT)&*_shellBrowser;
 215
 216                   case WM_GETISHELLBROWSER:     // for Registry Explorer Plugin
 217                         return (LRESULT)static_cast<IShellBrowser*>(&*_shellBrowser);
 218
 219                   default:
 220                         return super::WndProc(nmsg, wparam, lparam);
 221                 }
 222
 223                 return 0;
 224         }
 225
 226         int Notify(int id, NMHDR* pnmh)
 227         {
 228                 if (_shellBrowser.get())
 229                         switch(pnmh->code) {
 230                           case TVN_GETDISPINFO:         _shellBrowser->OnTreeGetDispInfo(id, pnmh);                                     break;
 231                           case TVN_SELCHANGED:          _shellBrowser->OnTreeItemSelected(id, (LPNMTREEVIEW)pnmh);      break;
 232                           case TVN_ITEMEXPANDING:       _shellBrowser->OnTreeItemExpanding(id, (LPNMTREEVIEW)pnmh);     break;
 233                           case NM_RCLICK:                       _shellBrowser->OnTreeItemRClick(id, pnmh);                                      break;
 234                           default:                                      return super::Notify(id, pnmh);
 235                         }
 236                 else
 237                         return super::Notify(id, pnmh);
 238
 239                 return 0;
 240         }
 241 };
 242
 243
 244 #ifndef _NO_MDI
 245
 246 struct MDIShellBrowserChild : public ExtContextMenuHandlerT<
 247                                 ShellBrowserChildT<ChildWindow>
 248                         >
 249 {
 250         typedef ExtContextMenuHandlerT<
 251                                 ShellBrowserChildT<ChildWindow>
 252                         > super;
 253
 254         MDIShellBrowserChild(HWND hwnd, const ShellChildWndInfo& info);
 255
 256         static MDIShellBrowserChild* create(const ShellChildWndInfo& info);
 257
 258         LRESULT Init(LPCREATESTRUCT);
 259
 260         virtual String jump_to_int(LPCTSTR url);
 261
 262 protected:
 263         ShellChildWndInfo _create_info;
 264         ShellPathInfo   _shellpath_info;
 265
 266         LRESULT WndProc(UINT nmsg, WPARAM wparam, LPARAM lparam);
 267
 268         void    update_shell_browser();
 269
 270          // interface BrowserCallback
 271         virtual void entry_selected(Entry* entry);
 272 };
 273
 274 #endif