/**
  * @brief  Callback routine of popup menu.
  * @param  pMsg: pointer to data structure of type WM_MESSAGE 
  * @retval None
  */
static void _cbPopup(WM_MESSAGE * pMsg) {

  K_GET_DIRECT_OPEN_FUNC * pfOpen; 
  MENU_MSG_DATA* pData;
  TREEVIEW_ITEM_Handle  hTreeView;
  TREEVIEW_ITEM_INFO    Info;
  WM_HWIN hItem;  
  char ext[4];
  switch (pMsg->MsgId) 
  {
  case WM_INIT_DIALOG:
    break;
    
  case WM_MENU:
    /* Process the menu message */
    pData = (MENU_MSG_DATA*)pMsg->Data.p;

    switch (pData->MsgType) 
    {
    case MENU_ON_ITEMSELECT:
      /* Menu item has been selected */
      switch (pData->ItemId) 
      {  
      case ID_MENU_OPENFILE:
        k_GetExtOnly(SelectedFileName, ext);
        pfOpen = k_ModuleCheckLink(ext);
        
        if(pfOpen != NULL)
        {
          pfOpen(SelectedFileName);
        }
        else 
        {
          _ShowMessageBox(hExplorerWin, "File Browser", "No external module is linked to\n this extension!", 0); 
        }
        break;
        
      case ID_MENU_DELETE:
        if (_ShowMessageBox(hExplorerWin, "File Browser", "Are you sure you want to\ndelete selected file?", 1)) 
        {
           f_unlink (SelectedFileName);
          _RefreshBrowser(hExplorerWin); 
        }
        break;
        
      case ID_MENU_PROPRIETIES:
        if(hFileInfo == 0)
        {
          hFileInfo = GUI_CreateDialogBox(_aFileInfoDialogCreate, 
                                          GUI_COUNTOF(_aFileInfoDialogCreate), 
                                          _cbFileInfoDialog, 
                                          hExplorerWin, 
                                          5, 
                                          75);
        }
        break;
      
      case ID_MENU_EXIT:    
        break;        
      }

      hItem = WM_GetDialogItem(hExplorerWin, ID_TREEVIEW); 
      hTreeView = TREEVIEW_GetSel(hItem);
      TREEVIEW_ITEM_GetInfo(hTreeView, &Info);
      if(Info.IsNode == 0)
      {
        /*Force Deselect item */
        hTreeView = TREEVIEW_GetItem(hItem, hTreeView, TREEVIEW_GET_PARENT);
        TREEVIEW_SetSel(hItem, hTreeView);
      }
      
    }
    break;
  default:
    WM_DefaultProc(pMsg);
    break;       
  }
}
/*********************************************************************
*
*       _cbPage1
*
* Purpose:
*   Callback routine for the second page of the multipage widget
*/
static void _cbPage1(WM_MESSAGE * pMsg) {
  TREEVIEW_ITEM_Handle hTVI0, hTVI1;
  TREEVIEW_ITEM_INFO ItemInfo;
  WM_HWIN hItem, hDlg, hTree0, hTree1;
  int i, NCode, Id;
  hDlg  = pMsg->hWin;
  switch (pMsg->MsgId) {
  case WM_NOTIFY_PARENT:
    hTree0= WM_GetDialogItem(WM_GetFirstChild(WM_HBKWIN), GUI_ID_TREEVIEW0);
    hTree1= WM_GetDialogItem(WM_GetFirstChild(WM_HBKWIN), GUI_ID_TREEVIEW1);
    Id    = WM_GetId(pMsg->hWinSrc);      /* Id of widget */
    NCode = pMsg->Data.v;                 /* Notification code */
    hItem = WM_GetDialogItem(hDlg, Id);
    switch (Id) {
    case GUI_ID_BUTTON0: /* Delete */
      switch (NCode) {
      case WM_NOTIFICATION_RELEASED:
        hTVI0 = TREEVIEW_GetSel(hTree0);
        if (hTVI0) {
          TREEVIEW_ITEM_Delete(hTVI0);
        } else {
          GUI_MessageBox("No item selected!", "Info", GUI_MESSAGEBOX_CF_MODAL);
          WM_SetFocus(hTree0);
        }
        break;
      }
      break;
    case GUI_ID_BUTTON1: /* Detach */
      switch (NCode) {
      case WM_NOTIFICATION_RELEASED:
        hTVI1 = TREEVIEW_GetItem(hTree1, 0, TREEVIEW_GET_FIRST);
        if (hTVI1) {
          TREEVIEW_ITEM_Delete(hTVI1);
        }
        hTVI0 = TREEVIEW_GetSel(hTree0);
        TREEVIEW_ITEM_Detach(hTVI0);
        TREEVIEW_AttachItem(hTree1, hTVI0, 0, TREEVIEW_GET_FIRST);
        break;
      }
      break;
    case GUI_ID_BUTTON2: /* Attach */
      switch (NCode) {
      case WM_NOTIFICATION_RELEASED:
        hTVI1 = TREEVIEW_GetItem(hTree1, 0, TREEVIEW_GET_FIRST);
        if (hTVI1) {
          hTVI0 = TREEVIEW_GetSel(hTree0);
          TREEVIEW_ITEM_Detach(hTVI1);
          if (hTVI0) {
            TREEVIEW_AttachItem(hTree0, hTVI1, hTVI0, TREEVIEW_INSERT_ABOVE);
          } else {
            TREEVIEW_AttachItem(hTree0, hTVI1,     0, 0);
          }
        } else {
          GUI_MessageBox("No item in buffer!", "Info", GUI_MESSAGEBOX_CF_MODAL);
          WM_SetFocus(hTree0);
        }
        break;
      }
      break;
    case GUI_ID_BUTTON3: /* Move up */
      switch (NCode) {
      case WM_NOTIFICATION_RELEASED:
        hTVI0 = TREEVIEW_GetSel(hTree0);
        if (hTVI0) {
          hTVI1 = TREEVIEW_GetItem(hTree0, hTVI0, TREEVIEW_GET_PREV_SIBLING);
          if (hTVI1) {
            TREEVIEW_ITEM_Detach(hTVI0);
            TREEVIEW_AttachItem(hTree0, hTVI0, hTVI1, TREEVIEW_INSERT_ABOVE);
            TREEVIEW_SetSel(hTree0, hTVI0);
          } else {
            GUI_MessageBox("Item is already on top!", "Info", GUI_MESSAGEBOX_CF_MODAL);
            WM_SetFocus(hTree0);
          }
        }
        break;
      }
      break;
    case GUI_ID_BUTTON4: /* Move down */
      switch (NCode) {
      case WM_NOTIFICATION_RELEASED:
        hTVI0 = TREEVIEW_GetSel(hTree0);
        if (hTVI0) {
          hTVI1 = TREEVIEW_GetItem(hTree0, hTVI0, TREEVIEW_GET_NEXT_SIBLING);
          if (hTVI1) {
            TREEVIEW_ITEM_Detach(hTVI0);
            TREEVIEW_AttachItem(hTree0, hTVI0, hTVI1, TREEVIEW_INSERT_BELOW);
            TREEVIEW_SetSel(hTree0, hTVI0);
          } else {
            GUI_MessageBox("Item is already on bottom!", "Info", GUI_MESSAGEBOX_CF_MODAL);
            WM_SetFocus(hTree0);
          }
        }
        break;
      }
      break;
    case GUI_ID_BUTTON5: /* New node */
      switch (NCode) {
      case WM_NOTIFICATION_RELEASED:
        hTVI0 = TREEVIEW_GetSel(hTree0);
        if (hTVI0) {
          TREEVIEW_ITEM_GetInfo(hTVI0, &ItemInfo);
          if (ItemInfo.IsNode) {
            hTVI0 = TREEVIEW_InsertItem(hTree0, TREEVIEW_ITEM_TYPE_NODE, hTVI0, TREEVIEW_INSERT_BELOW,  "New node");
          } else {
            hTVI0 = TREEVIEW_InsertItem(hTree0, TREEVIEW_ITEM_TYPE_NODE, hTVI0, TREEVIEW_INSERT_ABOVE,  "New node");
          }
        } else {
          hTVI0 = TREEVIEW_InsertItem(hTree0, TREEVIEW_ITEM_TYPE_NODE, 0, 0,  "New node");
        }
        hTVI0 = TREEVIEW_InsertItem(hTree0, TREEVIEW_ITEM_TYPE_LEAF, hTVI0, TREEVIEW_INSERT_FIRST_CHILD, "New.A");
        hTVI0 = TREEVIEW_InsertItem(hTree0, TREEVIEW_ITEM_TYPE_LEAF, hTVI0, TREEVIEW_INSERT_BELOW,  "New.B");
        hTVI0 = TREEVIEW_InsertItem(hTree0, TREEVIEW_ITEM_TYPE_LEAF, hTVI0, TREEVIEW_INSERT_BELOW,  "New.C");
        hTVI0 = TREEVIEW_InsertItem(hTree0, TREEVIEW_ITEM_TYPE_LEAF, hTVI0, TREEVIEW_INSERT_BELOW,  "New.D");
        break;
      }
      break;
    case GUI_ID_BUTTON6: /* New leaf */
      switch (NCode) {
      case WM_NOTIFICATION_RELEASED:
        hTVI0 = TREEVIEW_GetSel(hTree0);
        if (hTVI0) {
          TREEVIEW_ITEM_GetInfo(hTVI0, &ItemInfo);
          hTVI0 = TREEVIEW_InsertItem(hTree0, TREEVIEW_ITEM_TYPE_LEAF, hTVI0, TREEVIEW_INSERT_BELOW,  "New leaf");
        } else {
          hTVI0 = TREEVIEW_InsertItem(hTree0, TREEVIEW_ITEM_TYPE_LEAF, 0, 0,  "New leaf");
        }
        break;
      }
      break;
    case GUI_ID_BUTTON7: /* Leaf bitmap */
      switch (NCode) {
      case WM_NOTIFICATION_RELEASED:
        hTVI0 = TREEVIEW_GetSel(hTree0);
        if (hTVI0) {
          TREEVIEW_ITEM_GetInfo(hTVI0, &ItemInfo);
          if (ItemInfo.IsNode == 0) {
            TREEVIEW_ITEM_SetImage(hTVI0, TREEVIEW_BI_LEAF, &_bmSmilie);
          } else {
            GUI_MessageBox("Item is not a leaf!", "Info", GUI_MESSAGEBOX_CF_MODAL);
            WM_SetFocus(hTree0);
          }
        } else {
          GUI_MessageBox("No item selected!", "Info", GUI_MESSAGEBOX_CF_MODAL);
          WM_SetFocus(hTree0);
        }
        break;
      }
      break;
    case GUI_ID_BUTTON8: /* Open bitmap */
      switch (NCode) {
      case WM_NOTIFICATION_RELEASED:
        hTVI0 = TREEVIEW_GetSel(hTree0);
        if (hTVI0) {
          TREEVIEW_ITEM_GetInfo(hTVI0, &ItemInfo);
          if (ItemInfo.IsNode) {
            TREEVIEW_ITEM_SetImage(hTVI0, TREEVIEW_BI_OPEN, &_bmBookOpen);
          } else {
            GUI_MessageBox("Item is not a node!", "Info", GUI_MESSAGEBOX_CF_MODAL);
            WM_SetFocus(hTree0);
          }
        } else {
          GUI_MessageBox("No item selected!", "Info", GUI_MESSAGEBOX_CF_MODAL);
          WM_SetFocus(hTree0);
        }
        break;
      }
      break;
    case GUI_ID_BUTTON9: /* Closed bitmap */
      switch (NCode) {
      case WM_NOTIFICATION_RELEASED:
        hTVI0 = TREEVIEW_GetSel(hTree0);
        if (hTVI0) {
          TREEVIEW_ITEM_GetInfo(hTVI0, &ItemInfo);
          if (ItemInfo.IsNode) {
            TREEVIEW_ITEM_SetImage(hTVI0, TREEVIEW_BI_CLOSED, &_bmBookClosed);
          } else {
            GUI_MessageBox("Item is not a node!", "Info", GUI_MESSAGEBOX_CF_MODAL);
            WM_SetFocus(hTree0);
          }
        } else {
          GUI_MessageBox("No item selected!", "Info", GUI_MESSAGEBOX_CF_MODAL);
          WM_SetFocus(hTree0);
        }
        break;
      }
      break;
    }
    break;
  case WM_INIT_DIALOG: /* Initialize the items of the dialog */
    for (i = GUI_ID_BUTTON0; i <= GUI_ID_BUTTON9; i++) {
      hItem = WM_GetDialogItem(hDlg, i);
      if (hItem) {
        BUTTON_SetFocussable(hItem, 0); /* So the focus remains on the treeview after pressing the buttons */
      }
    }
    break;
  default:
    WM_DefaultProc(pMsg);
  }
}