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 left_hwnd, WindowHandle& right_hwnd, ShellPathInfo& create_info,
  65                                         HIMAGELIST himl, 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         LRESULT Init(HWND hWndFrame);
 126
 127         void    Init(HIMAGELIST himl)
 128         {
 129                 InitializeTree(himl);
 130                 InitDragDrop();
 131         }
 132
 133         int             InsertSubitems(HTREEITEM hParentItem, Entry* entry, IShellFolder* pParentFolder);
 134
 135         bool    jump_to_pidl(LPCITEMIDLIST pidl);
 136
 137         HRESULT OnDefaultCommand(LPIDA pida);
 138
 139         void    UpdateFolderView(IShellFolder* folder);
 140         HTREEITEM select_entry(HTREEITEM hitem, Entry* entry, bool expand=true);
 141
 142          // for SDIMainFrame
 143         void    jump_to(LPCITEMIDLIST pidl);
 144
 145 protected:
 146         HWND    _hwnd;
 147         HWND    _left_hwnd;
 148         WindowHandle& _right_hwnd;
 149         ShellPathInfo& _create_info;
 150         HIMAGELIST      _himl;
 151         HIMAGELIST      _himl_old;
 152         BrowserCallback* _callback;
 153
 154         WindowHandle _hWndFrame;
 155         ShellFolder     _folder;
 156
 157         IShellView*     _pShellView;    // current hosted shellview
 158         TreeDropTarget* _pDropTarget;
 159
 160         HTREEITEM _last_sel;
 161
 162         Root    _root;
 163         ShellDirectory* _cur_dir;
 164
 165         CtxMenuInterfaces& _cm_ifs;
 166
 167         void    InitializeTree(HIMAGELIST himl);
 168         bool    InitDragDrop();
 169
 170 #ifndef __MINGW32__     // IShellFolderViewCB missing in MinGW (as of 25.09.2005)
 171         typedef IComSrvBase<IShellFolderViewCB, ShellBrowser> super;
 172
 173          // IShellFolderViewCB
 174         virtual HRESULT STDMETHODCALLTYPE MessageSFVCB(UINT uMsg, WPARAM wParam, LPARAM lParam);
 175 #endif
 176 };
 177
 178
 179 #define C_DRIVE_STR TEXT("C:\\")
 180
 181  // work around GCC's wide string constant bug
 182 #ifdef __GNUC__
 183 extern const LPCTSTR C_DRIVE;
 184 #else
 185 #define C_DRIVE C_DRIVE_STR
 186 #endif
 187
 188 template<typename BASE> struct ShellBrowserChildT
 189  : public BASE, public BrowserCallback
 190 {
 191         typedef BASE super;
 192
 193          // constructor for SDIMainFrame
 194         ShellBrowserChildT(HWND hwnd)
 195          :      super(hwnd)
 196         {
 197                 _himlSmall = 0;
 198         }
 199
 200          // constructor for MDIShellBrowserChild
 201         ShellBrowserChildT(HWND hwnd, const ShellChildWndInfo& info)
 202          :      super(hwnd, info)
 203         {
 204                 _himlSmall = 0;
 205         }
 206
 207         void init_himl()
 208         {
 209                 SHFILEINFO sfi;
 210
 211                 _himlSmall = (HIMAGELIST)SHGetFileInfo(C_DRIVE, 0, &sfi, sizeof(SHFILEINFO), SHGFI_SYSICONINDEX|SHGFI_SMALLICON);
 212 //              _himlLarge = (HIMAGELIST)SHGetFileInfo(C_DRIVE, 0, &sfi, sizeof(SHFILEINFO), SHGFI_SYSICONINDEX|SHGFI_LARGEICON);
 213         }
 214
 215 protected:
 216         HIMAGELIST      _himlSmall;             // list
 217 //      HIMAGELIST      _himlLarge;             // shell image
 218
 219 protected:
 220         auto_ptr<ShellBrowser> _shellBrowser;
 221
 222         LRESULT WndProc(UINT nmsg, WPARAM wparam, LPARAM lparam)
 223         {
 224                 switch(nmsg) {
 225                   case PM_GET_SHELLBROWSER_PTR:
 226                         return (LRESULT)&*_shellBrowser;
 227
 228                   case WM_GETISHELLBROWSER:     // for Registry Explorer Plugin
 229                         return (LRESULT)static_cast<IShellBrowser*>(&*_shellBrowser);
 230
 231                   default:
 232                         return super::WndProc(nmsg, wparam, lparam);
 233                 }
 234
 235                 return 0;
 236         }
 237
 238         int Notify(int id, NMHDR* pnmh)
 239         {
 240                 if (&*_shellBrowser)
 241                         switch(pnmh->code) {
 242                           case TVN_GETDISPINFO:         _shellBrowser->OnTreeGetDispInfo(id, pnmh);                                     break;
 243                           case TVN_SELCHANGED:          _shellBrowser->OnTreeItemSelected(id, (LPNMTREEVIEW)pnmh);      break;
 244                           case TVN_ITEMEXPANDING:       _shellBrowser->OnTreeItemExpanding(id, (LPNMTREEVIEW)pnmh);     break;
 245                           case NM_RCLICK:                       _shellBrowser->OnTreeItemRClick(id, pnmh);                                      break;
 246                           default:                                      return super::Notify(id, pnmh);
 247                         }
 248                 else
 249                         return super::Notify(id, pnmh);
 250
 251                 return 0;
 252         }
 253 };
 254
 255
 256 #ifndef _NO_MDI
 257
 258 struct MDIShellBrowserChild : public ExtContextMenuHandlerT<
 259                                 ShellBrowserChildT<ChildWindow>
 260                         >
 261 {
 262         typedef ExtContextMenuHandlerT<
 263                                 ShellBrowserChildT<ChildWindow>
 264                         > super;
 265
 266         MDIShellBrowserChild(HWND hwnd, const ShellChildWndInfo& info);
 267
 268         static MDIShellBrowserChild* create(const ShellChildWndInfo& info);
 269
 270         LRESULT Init(LPCREATESTRUCT);
 271
 272         virtual String jump_to_int(LPCTSTR url);
 273
 274 protected:
 275         ShellChildWndInfo _create_info;
 276         ShellPathInfo   _shellpath_info;
 277
 278         LRESULT WndProc(UINT nmsg, WPARAM wparam, LPARAM lparam);
 279
 280         void    update_shell_browser();
 281
 282          // interface BrowserCallback
 283         virtual void    entry_selected(Entry* entry);
 284 };
 285
 286 #endif