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

   1 /*
   2  * Copyright 2003, 2004 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 void entry_selected(Entry* entry) = 0;
  54 };
  55
  56
  57  /// Implementation of IShellBrowserImpl interface in explorer child windows
  58 struct ShellBrowser : public IShellBrowserImpl
  59 {
  60         ShellBrowser(HWND hwnd, HWND left_hwnd, WindowHandle& right_hwnd, ShellPathInfo& create_info, HIMAGELIST himl, BrowserCallback* cb);
  61         virtual ~ShellBrowser();
  62
  63         //IOleWindow
  64         virtual HRESULT STDMETHODCALLTYPE GetWindow(HWND* lphwnd)
  65         {
  66                 *lphwnd = _hwnd;
  67                 return S_OK;
  68         }
  69
  70         //IShellBrowser
  71         virtual HRESULT STDMETHODCALLTYPE QueryActiveShellView(IShellView** ppshv)
  72         {
  73                 _pShellView->AddRef();
  74                 *ppshv = _pShellView;
  75                 return S_OK;
  76         }
  77
  78         virtual HRESULT STDMETHODCALLTYPE GetControlWindow(UINT id, HWND* lphwnd)
  79         {
  80                 if (!lphwnd)
  81                         return E_POINTER;
  82
  83                 if (id == FCW_TREE) {
  84                         *lphwnd = _left_hwnd;
  85                         return S_OK;
  86                 }
  87
  88                 HWND hwnd = (HWND)SendMessage(_hWndFrame, PM_GET_CONTROLWINDOW, id, 0);
  89
  90                 if (hwnd) {
  91                         *lphwnd = hwnd;
  92                         return S_OK;
  93                 }
  94
  95                 return E_NOTIMPL;
  96         }
  97
  98         virtual HRESULT STDMETHODCALLTYPE SendControlMsg(UINT id, UINT uMsg, WPARAM wParam, LPARAM lParam, LRESULT* pret)
  99         {
 100                 if (!pret)
 101                         return E_POINTER;
 102
 103                 HWND hstatusbar = (HWND)SendMessage(_hWndFrame, PM_GET_CONTROLWINDOW, id, 0);
 104
 105                 if (hstatusbar) {
 106                         *pret = ::SendMessage(hstatusbar, uMsg, wParam, lParam);
 107                         return S_OK;
 108                 }
 109
 110                 return E_NOTIMPL;
 111         }
 112
 113         const Root& get_root() const {return _root;}
 114
 115         void    OnTreeGetDispInfo(int idCtrl, LPNMHDR pnmh);
 116         void    OnTreeItemExpanding(int idCtrl, LPNMTREEVIEW pnmtv);
 117         void    OnTreeItemRClick(int idCtrl, LPNMHDR pnmh);
 118         void    OnTreeItemSelected(int idCtrl, LPNMTREEVIEW pnmtv);
 119
 120         LRESULT Init(HWND hWndFrame);
 121
 122         void    Init(HIMAGELIST himl)
 123         {
 124                 InitializeTree(himl);
 125                 InitDragDrop();
 126         }
 127
 128         int             InsertSubitems(HTREEITEM hParentItem, Entry* entry, IShellFolder* pParentFolder);
 129
 130         bool    jump_to_pidl(LPCITEMIDLIST pidl);
 131
 132         HRESULT OnDefaultCommand(LPIDA pida);
 133
 134         void    UpdateFolderView(IShellFolder* folder);
 135         void    Tree_DoItemMenu(HWND hwndTreeView, HTREEITEM hItem, LPPOINT pptScreen);
 136         HTREEITEM select_entry(HTREEITEM hitem, Entry* entry, bool expand=true);
 137
 138 protected:
 139         HWND    _hwnd;
 140         HWND    _left_hwnd;
 141         WindowHandle& _right_hwnd;
 142         ShellPathInfo& _create_info;
 143         HIMAGELIST      _himl;
 144         BrowserCallback* _callback;
 145
 146         WindowHandle _hWndFrame;
 147         ShellFolder     _folder;
 148
 149         IShellView*     _pShellView;    // current hosted shellview
 150         TreeDropTarget* _pDropTarget;
 151
 152         HTREEITEM _last_sel;
 153
 154         Root    _root;
 155         ShellDirectory* _cur_dir;
 156
 157         void    InitializeTree(HIMAGELIST himl);
 158         bool    InitDragDrop();
 159
 160          // for SDIMainFrame
 161         void    jump_to(LPCITEMIDLIST pidl);
 162 };
 163
 164
 165 template<typename BASE> struct ShellBrowserChildT
 166  : public BASE, public BrowserCallback
 167 {
 168         typedef BASE super;
 169
 170          // constructor for SDIMainFrame
 171         ShellBrowserChildT(HWND hwnd)
 172          :      super(hwnd)
 173         {
 174                 _himlSmall = 0;
 175         }
 176
 177          // constructor for MDIShellBrowserChild
 178         ShellBrowserChildT(HWND hwnd, const ShellChildWndInfo& info)
 179          :      super(hwnd, info)
 180         {
 181                 _himlSmall = 0;
 182         }
 183
 184         void init_himl()
 185         {
 186                 SHFILEINFO sfi;
 187
 188                 _himlSmall = (HIMAGELIST)SHGetFileInfo(TEXT("C:\\"), 0, &sfi, sizeof(SHFILEINFO), SHGFI_SYSICONINDEX|SHGFI_SMALLICON);
 189 //              _himlLarge = (HIMAGELIST)SHGetFileInfo(TEXT("C:\\"), 0, &sfi, sizeof(SHFILEINFO), SHGFI_SYSICONINDEX|SHGFI_LARGEICON);
 190         }
 191
 192 protected:
 193         HIMAGELIST      _himlSmall;             // list
 194 //      HIMAGELIST      _himlLarge;             // shell image
 195
 196 protected:
 197         auto_ptr<ShellBrowser> _shellBrowser;
 198
 199         LRESULT WndProc(UINT nmsg, WPARAM wparam, LPARAM lparam)
 200         {
 201                 switch(nmsg) {
 202                   case PM_GET_SHELLBROWSER_PTR:
 203                         return (LRESULT)&*_shellBrowser;
 204
 205                   case WM_GETISHELLBROWSER:     // for Registry Explorer Plugin
 206                         return (LRESULT)static_cast<IShellBrowser*>(&*_shellBrowser);
 207
 208                   default:
 209                         return super::WndProc(nmsg, wparam, lparam);
 210                 }
 211
 212                 return 0;
 213         }
 214
 215         int Notify(int id, NMHDR* pnmh)
 216         {
 217                 if (&*_shellBrowser)
 218                         switch(pnmh->code) {
 219                           case TVN_GETDISPINFO:         _shellBrowser->OnTreeGetDispInfo(id, pnmh);                                     break;
 220                           case TVN_SELCHANGED:          _shellBrowser->OnTreeItemSelected(id, (LPNMTREEVIEW)pnmh);      break;
 221                           case TVN_ITEMEXPANDING:       _shellBrowser->OnTreeItemExpanding(id, (LPNMTREEVIEW)pnmh);     break;
 222                           case NM_RCLICK:                       _shellBrowser->OnTreeItemRClick(id, pnmh);                                      break;
 223                           default:                                      return super::Notify(id, pnmh);
 224                         }
 225                 else
 226                         return super::Notify(id, pnmh);
 227
 228                 return 0;
 229         }
 230 };
 231
 232
 233 #ifndef _NO_MDI
 234
 235 struct MDIShellBrowserChild : public ShellBrowserChildT<ChildWindow>
 236 {
 237         typedef ShellBrowserChildT<ChildWindow> super;
 238
 239         MDIShellBrowserChild(HWND hwnd, const ShellChildWndInfo& info);
 240
 241         static MDIShellBrowserChild* create(const ShellChildWndInfo& info);
 242
 243         LRESULT Init(LPCREATESTRUCT);
 244
 245         virtual String jump_to_int(LPCTSTR url);
 246
 247 protected:
 248         ShellChildWndInfo _create_info;
 249         ShellPathInfo   _shellpath_info;
 250
 251         LRESULT WndProc(UINT nmsg, WPARAM wparam, LPARAM lparam);
 252
 253         void    update_shell_browser();
 254
 255          // interface BrowserCallback
 256         virtual void    entry_selected(Entry* entry);
 257 };
 258
 259 #endif