root.cc

   1 /*
   2  * Copyright (c) 2000, Red Hat, Inc.
   3  *
   4  *     This program is free software; you can redistribute it and/or modify
   5  *     it under the terms of the GNU General Public License as published by
   6  *     the Free Software Foundation; either version 2 of the License, or
   7  *     (at your option) any later version.
   8  *
   9  *     A copy of the GNU General Public License can be found at
  10  *     http://www.gnu.org/
  11  *
  12  * Written by DJ Delorie <dj@cygnus.com>
  13  *
  14  */
  15
  16 /* The purpose of this file is to ask the user where they want the
  17    root of the installation to be, and to ask whether the user prefers
  18    text or binary mounts. */
  19
  20 #include "win32.h"
  21 #include <shlobj.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <ctype.h>
  25
  26 #include "dialog.h"
  27 #include "resource.h"
  28 #include "state.h"
  29 #include "msg.h"
  30 #include "mount.h"
  31 #include "concat.h"
  32
  33 static int rb[] = { IDC_ROOT_TEXT, IDC_ROOT_BINARY, 0 };
  34 static int su[] = { IDC_ROOT_SYSTEM, IDC_ROOT_USER, 0 };
  35
  36 static void
  37 check_if_enable_next (HWND h)
  38 {
  39   EnableWindow (GetDlgItem (h, IDOK), root_text && root_dir && root_scope);
  40 }
  41
  42 static void
  43 load_dialog (HWND h)
  44 {
  45   rbset (h, rb, root_text);
  46   rbset (h, su, root_scope);
  47   eset (h, IDC_ROOT_DIR, root_dir);
  48   check_if_enable_next (h);
  49 }
  50
  51 static void
  52 save_dialog (HWND h)
  53 {
  54   root_text = rbget (h, rb);
  55   root_scope = rbget (h, su);
  56   root_dir = eget (h, IDC_ROOT_DIR, root_dir);
  57 }
  58
  59 static void
  60 read_mount_table ()
  61 {
  62   int istext;
  63   int issystem;
  64   root_dir = find_root_mount (&istext, &issystem);
  65   if (root_dir)
  66     {
  67       if (istext)
  68         root_text = IDC_ROOT_TEXT;
  69       else
  70         root_text = IDC_ROOT_BINARY;
  71       if (issystem)
  72         root_scope = IDC_ROOT_SYSTEM;
  73       else
  74         root_scope = IDC_ROOT_USER;
  75     }
  76   else
  77     {
  78       char windir[_MAX_PATH];
  79       GetWindowsDirectory (windir, sizeof (windir));
  80       windir[2] = 0;
  81       root_dir = concat (windir, "\\cygwin", 0);
  82       root_text = IDC_ROOT_BINARY;
  83       root_scope = IDC_ROOT_USER;
  84     }
  85 }
  86
  87 static int CALLBACK
  88 browse_cb (HWND h, UINT msg, LPARAM lp, LPARAM data)
  89 {
  90   switch (msg)
  91     {
  92     case BFFM_INITIALIZED:
  93       if (root_dir)
  94         SendMessage (h, BFFM_SETSELECTION, TRUE, (LPARAM)root_dir);
  95       break;
  96     }
  97   return 0;
  98 }
  99
 100 static void
 101 browse (HWND h)
 102 {
 103   BROWSEINFO bi;
 104   CHAR name[MAX_PATH];
 105   LPITEMIDLIST pidl;
 106   memset (&bi, 0, sizeof (bi));
 107   bi.hwndOwner = h;
 108   bi.pszDisplayName = name;
 109   bi.lpszTitle = "Select an installation root directory";
 110   bi.ulFlags = BIF_RETURNONLYFSDIRS;
 111   bi.lpfn = browse_cb;
 112   pidl = SHBrowseForFolder (&bi);
 113   if (pidl)
 114     {
 115       if (SHGetPathFromIDList (pidl, name))
 116         eset (h, IDC_ROOT_DIR, name);
 117     }
 118 }
 119
 120 #define isslash(c) ((c) == '\\' || (c) == '/')
 121
 122 static int
 123 directory_is_absolute ()
 124 {
 125   if (isalpha (root_dir[0])
 126       && root_dir[1] == ':'
 127       && (root_dir[2] == '\\' || root_dir[2] == '/'))
 128     return 1;
 129   return 0;
 130 }
 131
 132 static int
 133 directory_is_rootdir ()
 134 {
 135   char *c;
 136   for (c = root_dir; *c; c++)
 137     if (isslash(c[0]) && c[1] && !isslash(c[1]))
 138       return 0;
 139   return 1;
 140 }
 141
 142 static int
 143 directory_has_spaces ()
 144 {
 145   if (strchr (root_dir, ' '))
 146     return 1;
 147   return 0;
 148 }
 149
 150 static BOOL
 151 dialog_cmd (HWND h, int id, HWND hwndctl, UINT code)
 152 {
 153   switch (id)
 154     {
 155
 156     case IDC_ROOT_DIR:
 157     case IDC_ROOT_TEXT:
 158     case IDC_ROOT_BINARY:
 159     case IDC_ROOT_SYSTEM:
 160     case IDC_ROOT_USER:
 161       save_dialog (h);
 162       check_if_enable_next (h);
 163       break;
 164
 165     case IDC_ROOT_BROWSE:
 166       browse (h);
 167       break;
 168
 169     case IDOK:
 170       save_dialog(h);
 171
 172       if (! directory_is_absolute ())
 173         {
 174           note (IDS_ROOT_ABSOLUTE);
 175           break;
 176         }
 177
 178       if (directory_is_rootdir ())
 179         if (IDNO == yesno (IDS_ROOT_SLASH))
 180           break;
 181
 182       if (directory_has_spaces ())
 183         if (IDNO == yesno (IDS_ROOT_SPACE))
 184           break;
 185
 186       switch (source)
 187         {
 188         case IDC_SOURCE_NETINST:
 189           NEXT(IDD_NET);
 190           break;
 191         case IDC_SOURCE_CWD:
 192           NEXT(IDD_S_FROM_CWD);
 193           break;
 194         default:
 195           msg("source is default? %d\n", source);
 196           NEXT(0);
 197         }
 198       break;
 199
 200     case IDC_BACK:
 201       save_dialog(h);
 202       NEXT(IDD_SOURCE);
 203       break;
 204
 205     case IDCANCEL:
 206       NEXT(0);
 207       break;
 208     }
 209 }
 210
 211 static BOOL CALLBACK
 212 dialog_proc (HWND h, UINT message, WPARAM wParam, LPARAM lParam)
 213 {
 214   switch (message)
 215     {
 216     case WM_INITDIALOG:
 217       load_dialog(h);
 218       return FALSE;
 219     case WM_COMMAND:
 220       return HANDLE_WM_COMMAND(h, wParam, lParam, dialog_cmd);
 221     }
 222   return FALSE;
 223 }
 224
 225 void
 226 do_root (HINSTANCE h)
 227 {
 228   int rv = 0;
 229   if (!root_dir)
 230     read_mount_table();
 231   rv = DialogBox (h, MAKEINTRESOURCE (IDD_ROOT), 0, dialog_proc);
 232   if (rv == -1)
 233     fatal (IDS_DIALOG_FAILED);
 234 }
 235