dlls/inetcpl.cpl/general.c

   1 /*
   2  * Internet control panel applet: general propsheet
   3  *
   4  * Copyright 2010 Detlef Riekenberg
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  *
  20  */
  21
  22 #define NONAMELESSUNION
  23
  24 #include <stdarg.h>
  25 #include <windef.h>
  26 #include <winbase.h>
  27 #include <winuser.h>
  28 #include <wininet.h>
  29 #include <winreg.h>
  30 #include <shlwapi.h>
  31 #include <prsht.h>
  32
  33 #include "inetcpl.h"
  34 #include "wine/debug.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(inetcpl);
  37
  38 static const WCHAR about_blank[] = {'a','b','o','u','t',':','b','l','a','n','k',0};
  39 static const WCHAR start_page[] = {'S','t','a','r','t',' ','P','a','g','e',0};
  40 static const WCHAR reg_ie_main[] = {'S','o','f','t','w','a','r','e','\\',
  41                                     'M','i','c','r','o','s','o','f','t','\\',
  42                                     'I','n','t','e','r','n','e','t',' ','E','x','p','l','o','r','e','r','\\',
  43                                     'M','a','i','n',0};
  44
  45 /* list of unimplemented buttons */
  46 static DWORD disable_me[] = {IDC_HOME_CURRENT,
  47                              IDC_HOME_DEFAULT, 0};
  48
  49 /*********************************************************************
  50  * parse_url_from_outside [internal]
  51  *
  52  * Filter an URL, add a usable scheme, when needed
  53  *
  54  */
  55 static DWORD parse_url_from_outside(LPCWSTR url, LPWSTR out, DWORD maxlen)
  56 {
  57     HMODULE hdll;
  58     DWORD (WINAPI *pParseURLFromOutsideSourceW)(LPCWSTR, LPWSTR, LPDWORD, LPDWORD);
  59     DWORD res;
  60
  61     hdll = LoadLibraryA("shdocvw.dll");
  62     pParseURLFromOutsideSourceW = (void *) GetProcAddress(hdll, (LPSTR) 170);
  63
  64     if (pParseURLFromOutsideSourceW)
  65     {
  66         res = pParseURLFromOutsideSourceW(url, out, &maxlen, NULL);
  67         FreeLibrary(hdll);
  68         return res;
  69     }
  70
  71     ERR("failed to get ordinal 170: %d\n", GetLastError());
  72     FreeLibrary(hdll);
  73     return 0;
  74 }
  75
  76 /*********************************************************************
  77  * general_on_command [internal]
  78  *
  79  * handle WM_COMMAND
  80  *
  81  */
  82 static INT_PTR general_on_command(HWND hwnd, WPARAM wparam)
  83 {
  84
  85     switch (wparam)
  86     {
  87         case MAKEWPARAM(IDC_HOME_EDIT, EN_CHANGE):
  88             /* enable apply button */
  89             SendMessageW(GetParent(hwnd), PSM_CHANGED, (WPARAM)hwnd, 0);
  90             break;
  91
  92         case MAKEWPARAM(IDC_HOME_BLANK, BN_CLICKED):
  93             SetDlgItemTextW(hwnd, IDC_HOME_EDIT, about_blank);
  94             break;
  95
  96         default:
  97             TRACE("not implemented for command: %d/%d\n", HIWORD(wparam),  LOWORD(wparam));
  98             return FALSE;
  99     }
 100     return TRUE;
 101 }
 102
 103 /*********************************************************************
 104  * general_on_initdialog [internal]
 105  *
 106  * handle WM_INITDIALOG
 107  *
 108  */
 109 static VOID general_on_initdialog(HWND hwnd)
 110 {
 111     WCHAR buffer[INTERNET_MAX_URL_LENGTH];
 112     DWORD len;
 113     DWORD type;
 114     LONG res;
 115     DWORD *ptr = disable_me;
 116
 117     /* disable unimplemented buttons */
 118     while (*ptr)
 119     {
 120         EnableWindow(GetDlgItem(hwnd, *ptr), FALSE);
 121         ptr++;
 122     }
 123
 124     /* read current homepage from the registry. Try HCU first, then HKLM */
 125     *buffer = 0;
 126     len = sizeof(buffer);
 127     type = REG_SZ;
 128     res = SHRegGetUSValueW(reg_ie_main, start_page, &type, buffer, &len, FALSE, (LPBYTE) about_blank, sizeof(about_blank));
 129
 130     if (!res && (type == REG_SZ))
 131     {
 132         SetDlgItemTextW(hwnd, IDC_HOME_EDIT, buffer);
 133     }
 134 }
 135
 136 /*********************************************************************
 137  * general_on_notify [internal]
 138  *
 139  * handle WM_NOTIFY
 140  *
 141  */
 142 static INT_PTR general_on_notify(HWND hwnd, WPARAM wparam, LPARAM lparam)
 143 {
 144     PSHNOTIFY *psn;
 145     WCHAR buffer[INTERNET_MAX_URL_LENGTH];
 146     WCHAR parsed[INTERNET_MAX_URL_LENGTH];
 147     LONG res;
 148
 149     psn = (PSHNOTIFY *) lparam;
 150     TRACE("WM_NOTIFY (%p, 0x%lx, 0x%lx) from %p with code: %d\n", hwnd, wparam, lparam,
 151             psn->hdr.hwndFrom, psn->hdr.code);
 152
 153     if (psn->hdr.code == PSN_APPLY)
 154     {
 155         *buffer = 0;
 156         GetDlgItemTextW(hwnd, IDC_HOME_EDIT, buffer, sizeof(buffer)/sizeof(WCHAR));
 157         TRACE("EDITTEXT has %s\n", debugstr_w(buffer));
 158
 159         res = parse_url_from_outside(buffer, parsed, sizeof(parsed)/sizeof(WCHAR));
 160         TRACE("got %d with %s\n", res, debugstr_w(parsed));
 161
 162         if (res)
 163         {
 164             HKEY hkey;
 165
 166             /* update the dialog, when needed */
 167             if (lstrcmpW(buffer, parsed))
 168                 SetDlgItemTextW(hwnd, IDC_HOME_EDIT, parsed);
 169
 170             /* update the registry */
 171             res = RegOpenKeyW(HKEY_CURRENT_USER, reg_ie_main, &hkey);
 172             if (!res)
 173             {
 174                 res = RegSetValueExW(hkey, start_page, 0, REG_SZ, (const BYTE *)parsed,
 175                                     (lstrlenW(parsed) + 1) * sizeof(WCHAR));
 176                 RegCloseKey(hkey);
 177                 return !res;
 178             }
 179         }
 180     }
 181     return FALSE;
 182 }
 183
 184 /*********************************************************************
 185  * general_dlgproc [internal]
 186  *
 187  */
 188 INT_PTR CALLBACK general_dlgproc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam)
 189 {
 190
 191     switch (msg)
 192     {
 193         case WM_INITDIALOG:
 194             general_on_initdialog(hwnd);
 195             return TRUE;
 196
 197         case WM_COMMAND:
 198             return general_on_command(hwnd, wparam);
 199
 200         case WM_NOTIFY:
 201             return general_on_notify(hwnd, wparam, lparam);
 202
 203         default:
 204             /* do not flood the log */
 205             if ((msg == WM_SETCURSOR) || (msg == WM_NCHITTEST) || (msg == WM_MOUSEMOVE))
 206                 return FALSE;
 207
 208             TRACE("(%p, 0x%08x/%d, 0x%lx, 0x%lx)\n", hwnd, msg, msg, wparam, lparam);
 209
 210     }
 211     return FALSE;
 212 }