base/shell/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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  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 #include <memory>
  32
  33  /// information structure to hold current shell folder information
  34 struct ShellPathInfo
  35 {
  36         ShellPathInfo(int mode=0) : _open_mode(mode) {}
  37
  38         ShellPathInfo(const ShellChildWndInfo& info)
  39          :      _shell_path(info._shell_path),
  40                 _root_shell_path(info._root_shell_path),
  41                 _open_mode(info._open_mode)
  42         {
  43         }
  44
  45         ShellPath       _shell_path;
  46         ShellPath       _root_shell_path;
  47
  48         int                     _open_mode;     //OPEN_WINDOW_MODE
  49 };
  50
  51
  52 struct BrowserCallback
  53 {
  54         virtual ~BrowserCallback() {}
  55         virtual void entry_selected(Entry* entry) = 0;
  56 };
  57
  58
  59  /// Implementation of IShellBrowserImpl interface in explorer child windows
  60 struct ShellBrowser : public IShellBrowserImpl,
  61                 public IComSrvBase<IShellFolderViewCB, ShellBrowser>, public SimpleComObject
  62 {
  63         ShellBrowser(HWND hwnd, HWND hwndFrame, HWND left_hwnd, WindowHandle& right_hwnd, ShellPathInfo& create_info,
  64                                         BrowserCallback* cb, CtxMenuInterfaces& cm_ifs);
  65         virtual ~ShellBrowser();
  66
  67         //IOleWindow
  68         virtual HRESULT STDMETHODCALLTYPE GetWindow(HWND* lphwnd)
  69         {
  70                 *lphwnd = _hwnd;
  71                 return S_OK;
  72         }
  73
  74         //IShellBrowser
  75         virtual HRESULT STDMETHODCALLTYPE QueryActiveShellView(IShellView** ppshv)
  76         {
  77                 _pShellView->AddRef();
  78                 *ppshv = _pShellView;
  79                 return S_OK;
  80         }
  81
  82         virtual HRESULT STDMETHODCALLTYPE GetControlWindow(UINT id, HWND* lphwnd)
  83         {
  84                 if (!lphwnd)
  85                         return E_POINTER;
  86
  87                 if (id == FCW_TREE) {
  88                         *lphwnd = _left_hwnd;
  89                         return S_OK;
  90                 }
  91
  92                 HWND hwnd = (HWND)SendMessage(_hwndFrame, PM_GET_CONTROLWINDOW, id, 0);
  93
  94                 if (hwnd) {
  95                         *lphwnd = hwnd;
  96                         return S_OK;
  97                 }
  98
  99                 return E_NOTIMPL;
 100         }
 101
 102         virtual HRESULT STDMETHODCALLTYPE SendControlMsg(UINT id, UINT uMsg, WPARAM wParam, LPARAM lParam, LRESULT* pret)
 103         {
 104                 if (!pret)
 105                         return E_POINTER;
 106
 107                 HWND hstatusbar = (HWND)SendMessage(_hwndFrame, PM_GET_CONTROLWINDOW, id, 0);
 108
 109                 if (hstatusbar) {
 110                         *pret = ::SendMessage(hstatusbar, uMsg, wParam, lParam);
 111                         return S_OK;
 112                 }
 113
 114                 return E_NOTIMPL;
 115         }
 116
 117         const Root& get_root() const {return _root;}
 118
 119         void    OnTreeGetDispInfo(int idCtrl, LPNMHDR pnmh);
 120         void    OnTreeItemExpanding(int idCtrl, LPNMTREEVIEW pnmtv);
 121         void    OnTreeItemRClick(int idCtrl, LPNMHDR pnmh);
 122         void    OnTreeItemSelected(int idCtrl, LPNMTREEVIEW pnmtv);
 123
 124         void    Init();
 125
 126         int             InsertSubitems(HTREEITEM hParentItem, Entry* entry, IShellFolder* pParentFolder);
 127
 128         bool    jump_to_pidl(LPCITEMIDLIST pidl);
 129
 130         HRESULT OnDefaultCommand(LPIDA pida);
 131
 132         void    UpdateFolderView(IShellFolder* folder);
 133         HTREEITEM select_entry(HTREEITEM hitem, Entry* entry, bool expand=true);
 134
 135         bool    select_folder(Entry* entry, bool expand);
 136
 137          // for SDIMainFrame
 138         void    jump_to(LPCITEMIDLIST pidl);
 139
 140         void    invalidate_cache();
 141
 142         bool TranslateAccelerator(LPMSG lpmsg);
 143
 144 protected:
 145         HWND                    _hwnd;
 146         HWND                    _hwndFrame;
 147         HWND                    _left_hwnd;
 148         WindowHandle&   _right_hwnd;
 149         ShellPathInfo&  _create_info;
 150         HIMAGELIST              _himl;
 151         HIMAGELIST              _himl_old;
 152         BrowserCallback* _callback;
 153
 154         ShellFolder             _folder;
 155
 156         IShellView*             _pShellView;    // current hosted shellview
 157         TreeDropTarget* _pDropTarget;
 158
 159         HTREEITEM               _last_sel;
 160
 161         Root                    _root;
 162         ShellDirectory* _cur_dir;
 163
 164         CtxMenuInterfaces& _cm_ifs;
 165
 166         void    InitializeTree();
 167         bool    InitDragDrop();
 168
 169         typedef IComSrvBase<IShellFolderViewCB, ShellBrowser> super;
 170
 171          // IShellFolderViewCB
 172         virtual HRESULT STDMETHODCALLTYPE MessageSFVCB(UINT uMsg, WPARAM wParam, LPARAM lParam);
 173
 174         map<int, int> _image_map;
 175
 176         int             get_image_idx(int icon_id);
 177
 178         void    refresh();
 179 };
 180
 181
 182 #define C_DRIVE_STR TEXT("C:\\")
 183
 184  // work around GCC's wide string constant bug
 185 #ifdef __GNUC__
 186 extern const LPCTSTR C_DRIVE;
 187 #else
 188 #define C_DRIVE C_DRIVE_STR
 189 #endif
 190
 191 template<typename BASE> struct ShellBrowserChildT
 192  : public BASE, public BrowserCallback
 193 {
 194         typedef BASE super;
 195
 196          // constructor for SDIMainFrame
 197         ShellBrowserChildT(HWND hwnd)
 198          :      super(hwnd)
 199         {
 200         }
 201
 202          // constructor for MDIShellBrowserChild
 203         ShellBrowserChildT(HWND hwnd, const ShellChildWndInfo& info)
 204          :      super(hwnd, info)
 205         {
 206         }
 207
 208 protected:
 209         auto_ptr<ShellBrowser> _shellBrowser;
 210
 211         LRESULT WndProc(UINT nmsg, WPARAM wparam, LPARAM lparam)
 212         {
 213                 switch(nmsg) {
 214                   case PM_GET_SHELLBROWSER_PTR:
 215                         return (LRESULT)&*_shellBrowser;
 216
 217                   case WM_GETISHELLBROWSER:     // for Registry Explorer Plugin
 218                         return (LRESULT)static_cast<IShellBrowser*>(&*_shellBrowser);
 219
 220                   default:
 221                         return super::WndProc(nmsg, wparam, lparam);
 222                 }
 223
 224                 return 0;
 225         }
 226
 227         int Notify(int id, NMHDR* pnmh)
 228         {
 229                 if (_shellBrowser.get())
 230                         switch(pnmh->code) {
 231                           case TVN_GETDISPINFO:         _shellBrowser->OnTreeGetDispInfo(id, pnmh);                                     break;
 232                           case TVN_SELCHANGED:          _shellBrowser->OnTreeItemSelected(id, (LPNMTREEVIEW)pnmh);      break;
 233                           case TVN_ITEMEXPANDING:       _shellBrowser->OnTreeItemExpanding(id, (LPNMTREEVIEW)pnmh);     break;
 234                           case NM_RCLICK:                       _shellBrowser->OnTreeItemRClick(id, pnmh);                                      break;
 235                           default:                                      return super::Notify(id, pnmh);
 236                         }
 237                 else
 238                         return super::Notify(id, pnmh);
 239
 240                 return 0;
 241         }
 242 };
 243
 244
 245 #ifndef _NO_MDI
 246
 247 struct MDIShellBrowserChild : public ExtContextMenuHandlerT<
 248                                 ShellBrowserChildT<ChildWindow>
 249                         >
 250 {
 251         typedef ExtContextMenuHandlerT<
 252                                 ShellBrowserChildT<ChildWindow>
 253                         > super;
 254
 255         MDIShellBrowserChild(HWND hwnd, const ShellChildWndInfo& info);
 256
 257         static MDIShellBrowserChild* create(const ShellChildWndInfo& info);
 258
 259         LRESULT Init(LPCREATESTRUCT);
 260
 261         virtual String jump_to_int(LPCTSTR url);
 262
 263 protected:
 264         ShellChildWndInfo _create_info;
 265         ShellPathInfo   _shellpath_info;
 266
 267         LRESULT WndProc(UINT nmsg, WPARAM wparam, LPARAM lparam);
 268
 269         void    update_shell_browser();
 270
 271          // interface BrowserCallback
 272         virtual void entry_selected(Entry* entry);
 273 };
 274
 275 #endif