2 * WineCfg configuration management
4 * Copyright 2002 Jaco Greeff
5 * Copyright 2003 Dimitrie O. Paun
6 * Copyright 2003-2004 Mike Hearn
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
24 * - Icons in listviews/icons
25 * - Better add app dialog, scan c: for EXE files and add to list in background
26 * - Use [GNOME] HIG style groupboxes rather than win32 style (looks nicer, imho)
30 #define WIN32_LEAN_AND_MEAN
37 #include <wine/debug.h>
38 #include <wine/list.h>
40 WINE_DEFAULT_DEBUG_CHANNEL(winecfg);
45 HKEY config_key = NULL;
46 HMENU hPopupMenus = 0;
49 /* this is called from the WM_SHOWWINDOW handlers of each tab page.
51 * it's a nasty hack, necessary because the property sheet insists on resetting the window title
52 * to the title of the tab, which is utterly useless. dropping the property sheet is on the todo list.
54 void set_window_title(HWND dialog)
58 /* update the window title */
62 LoadStringW (GetModuleHandle(NULL), IDS_WINECFG_TITLE_APP, apptitle,
63 sizeof(apptitle)/sizeof(apptitle[0]));
64 wsprintfW (newtitle, apptitle, current_app);
68 LoadStringW (GetModuleHandle(NULL), IDS_WINECFG_TITLE, newtitle,
69 sizeof(newtitle)/sizeof(newtitle[0]));
72 WINE_TRACE("setting title to %s\n", wine_dbgstr_w (newtitle));
73 SendMessageW (GetParent(dialog), PSM_SETTITLEW, 0, (LPARAM) newtitle);
77 WCHAR* load_string (UINT id)
83 LoadStringW (GetModuleHandle (NULL), id, buf, sizeof(buf)/sizeof(buf[0]));
86 newStr = HeapAlloc (GetProcessHeap(), 0, (len + 1) * sizeof (WCHAR));
87 memcpy (newStr, buf, len * sizeof (WCHAR));
93 * get_config_key: Retrieves a configuration value from the registry
95 * char *subkey : the name of the config section
96 * char *name : the name of the config value
97 * char *default : if the key isn't found, return this value instead
99 * Returns a buffer holding the value if successful, NULL if
100 * not. Caller is responsible for releasing the result.
103 static char *get_config_key (HKEY root, const char *subkey, const char *name, const char *def)
110 WINE_TRACE("subkey=%s, name=%s, def=%s\n", subkey, name, def);
112 res = RegOpenKey(root, subkey, &hSubKey);
113 if (res != ERROR_SUCCESS)
115 if (res == ERROR_FILE_NOT_FOUND)
117 WINE_TRACE("Section key not present - using default\n");
118 return def ? strdupA(def) : NULL;
122 WINE_ERR("RegOpenKey failed on wine config key (res=%d)\n", res);
127 res = RegQueryValueExA(hSubKey, name, NULL, NULL, NULL, &len);
128 if (res == ERROR_FILE_NOT_FOUND)
130 WINE_TRACE("Value not present - using default\n");
131 buffer = def ? strdupA(def) : NULL;
133 } else if (res != ERROR_SUCCESS)
135 WINE_ERR("Couldn't query value's length (res=%d)\n", res);
139 buffer = HeapAlloc(GetProcessHeap(), 0, len + 1);
141 RegQueryValueEx(hSubKey, name, NULL, NULL, (LPBYTE) buffer, &len);
143 WINE_TRACE("buffer=%s\n", buffer);
145 if (hSubKey && hSubKey != root) RegCloseKey(hSubKey);
151 * set_config_key: convenience wrapper to set a key/value pair
153 * const char *subKey : the name of the config section
154 * const char *valueName : the name of the config value
155 * const char *value : the value to set the configuration key to
157 * Returns 0 on success, non-zero otherwise
159 * If valueName or value is NULL, an empty section will be created
161 static int set_config_key(HKEY root, const char *subkey, const char *name, const void *value, DWORD type) {
165 WINE_TRACE("subkey=%s: name=%s, value=%p, type=%d\n", subkey, name, value, type);
167 assert( subkey != NULL );
171 res = RegCreateKey(root, subkey, &key);
172 if (res != ERROR_SUCCESS) goto end;
175 if (name == NULL || value == NULL) goto end;
179 case REG_SZ: res = RegSetValueEx(key, name, 0, REG_SZ, value, strlen(value) + 1); break;
180 case REG_DWORD: res = RegSetValueEx(key, name, 0, REG_DWORD, value, sizeof(DWORD)); break;
182 if (res != ERROR_SUCCESS) goto end;
186 if (key && key != root) RegCloseKey(key);
187 if (res != 0) WINE_ERR("Unable to set configuration key %s in section %s, res=%d\n", name, subkey, res);
191 /* removes the requested value from the registry, however, does not
192 * remove the section if empty. Returns S_OK (0) on success.
194 static HRESULT remove_value(HKEY root, const char *subkey, const char *name)
199 WINE_TRACE("subkey=%s, name=%s\n", subkey, name);
201 hr = RegOpenKey(root, subkey, &key);
202 if (hr != S_OK) return hr;
204 hr = RegDeleteValue(key, name);
205 if (hr != ERROR_SUCCESS) return hr;
210 /* removes the requested subkey from the registry, assuming it exists */
211 static LONG remove_path(HKEY root, char *section) {
213 DWORD max_sub_key_len;
216 LONG ret = ERROR_SUCCESS;
220 WINE_TRACE("section=%s\n", section);
222 if ((ret = RegOpenKey(root, section, &branch_key)) != ERROR_SUCCESS)
225 /* get size information and resize the buffers if necessary */
226 if ((ret = RegQueryInfoKey(branch_key, NULL, NULL, NULL,
227 &subkeys, &max_sub_key_len,
228 NULL, NULL, NULL, NULL, NULL, NULL
232 curr_len = strlen(section);
233 buffer = HeapAlloc(GetProcessHeap(), 0, max_sub_key_len + curr_len + 1);
234 strcpy(buffer, section);
236 buffer[curr_len] = '\\';
237 for (i = subkeys - 1; i >= 0; i--)
239 DWORD buf_len = max_sub_key_len - curr_len - 1;
241 ret = RegEnumKeyEx(branch_key, i, buffer + curr_len + 1,
242 &buf_len, NULL, NULL, NULL, NULL);
243 if (ret != ERROR_SUCCESS && ret != ERROR_MORE_DATA &&
244 ret != ERROR_NO_MORE_ITEMS)
247 remove_path(root, buffer);
249 HeapFree(GetProcessHeap(), 0, buffer);
250 RegCloseKey(branch_key);
252 return RegDeleteKey(root, section);
256 /* ========================================================================= */
258 /* This code exists for the following reasons:
260 * - It makes working with the registry easier
261 * - By storing a mini cache of the registry, we can more easily implement
262 * cancel/revert and apply. The 'settings list' is an overlay on top of
263 * the actual registry data that we can write out at will.
265 * Rather than model a tree in memory, we simply store each absolute (rooted
266 * at the config key) path.
273 HKEY root; /* the key on which path is rooted */
274 char *path; /* path in the registry rooted at root */
275 char *name; /* name of the registry value. if null, this means delete the key */
276 char *value; /* contents of the registry value. if null, this means delete the value */
277 DWORD type; /* type of registry value. REG_SZ or REG_DWORD for now */
280 struct list *settings;
282 static void free_setting(struct setting *setting)
284 assert( setting != NULL );
285 assert( setting->path );
287 WINE_TRACE("destroying %p: %s\n", setting, setting->path);
289 HeapFree(GetProcessHeap(), 0, setting->path);
290 HeapFree(GetProcessHeap(), 0, setting->name);
291 HeapFree(GetProcessHeap(), 0, setting->value);
293 list_remove(&setting->entry);
295 HeapFree(GetProcessHeap(), 0, setting);
299 * Returns the contents of the value at path. If not in the settings
300 * list, it will be fetched from the registry - failing that, the
301 * default will be used.
303 * If already in the list, the contents as given there will be
304 * returned. You are expected to HeapFree the result.
306 char *get_reg_key(HKEY root, const char *path, const char *name, const char *def)
312 WINE_TRACE("path=%s, name=%s, def=%s\n", path, name, def);
314 /* check if it's in the list */
315 LIST_FOR_EACH( cursor, settings )
317 s = LIST_ENTRY(cursor, struct setting, entry);
319 if (root != s->root) continue;
320 if (strcasecmp(path, s->path) != 0) continue;
321 if (!s->name) continue;
322 if (strcasecmp(name, s->name) != 0) continue;
324 WINE_TRACE("found %s:%s in settings list, returning %s\n", path, name, s->value);
325 return s->value ? strdupA(s->value) : NULL;
328 /* no, so get from the registry */
329 val = get_config_key(root, path, name, def);
331 WINE_TRACE("returning %s\n", val);
337 * Used to set a registry key.
339 * path is rooted at the config key, ie use "Version" or
340 * "AppDefaults\\fooapp.exe\\Version". You can use keypath()
341 * to get such a string.
343 * name is the value name, or NULL to delete the path.
345 * value is what to set the value to, or NULL to delete it.
347 * type is REG_SZ or REG_DWORD.
349 * These values will be copied when necessary.
351 static void set_reg_key_ex(HKEY root, const char *path, const char *name, const void *value, DWORD type)
356 assert( path != NULL );
358 WINE_TRACE("path=%s, name=%s, value=%p\n", path, name, value);
360 /* firstly, see if we already set this setting */
361 LIST_FOR_EACH( cursor, settings )
363 struct setting *s = LIST_ENTRY(cursor, struct setting, entry);
365 if (root != s->root) continue;
366 if (strcasecmp(s->path, path) != 0) continue;
367 if ((s->name && name) && strcasecmp(s->name, name) != 0) continue;
369 /* are we attempting a double delete? */
370 if (!s->name && !name) return;
372 /* do we want to undelete this key? */
373 if (!s->name && name) s->name = strdupA(name);
375 /* yes, we have already set it, so just replace the content and return */
376 HeapFree(GetProcessHeap(), 0, s->value);
381 s->value = value ? strdupA(value) : NULL;
384 s->value = HeapAlloc(GetProcessHeap(), 0, sizeof(DWORD));
385 memcpy( s->value, value, sizeof(DWORD) );
389 /* are we deleting this key? this won't remove any of the
390 * children from the overlay so if the user adds it again in
391 * that session it will appear to undelete the settings, but
392 * in reality only the settings actually modified by the user
393 * in that session will be restored. we might want to fix this
394 * corner case in future by actually deleting all the children
395 * here so that once it's gone, it's gone.
397 if (!name) s->name = NULL;
402 /* otherwise add a new setting for it */
403 s = HeapAlloc(GetProcessHeap(), 0, sizeof(struct setting));
405 s->path = strdupA(path);
406 s->name = name ? strdupA(name) : NULL;
411 s->value = value ? strdupA(value) : NULL;
414 s->value = HeapAlloc(GetProcessHeap(), 0, sizeof(DWORD));
415 memcpy( s->value, value, sizeof(DWORD) );
419 list_add_tail(settings, &s->entry);
422 void set_reg_key(HKEY root, const char *path, const char *name, const char *value)
424 set_reg_key_ex(root, path, name, value, REG_SZ);
427 void set_reg_key_dword(HKEY root, const char *path, const char *name, DWORD value)
429 set_reg_key_ex(root, path, name, &value, REG_DWORD);
433 * enumerates the value names at the given path, taking into account
434 * the changes in the settings list.
436 * you are expected to HeapFree each element of the array, which is null
437 * terminated, as well as the array itself.
439 char **enumerate_values(HKEY root, char *path)
443 char **values = NULL;
447 res = RegOpenKey(root, path, &key);
448 if (res == ERROR_SUCCESS)
453 DWORD namesize = sizeof(name);
454 BOOL removed = FALSE;
456 /* find out the needed size, allocate a buffer, read the value */
457 if ((res = RegEnumValue(key, i, name, &namesize, NULL, NULL, NULL, NULL)) != ERROR_SUCCESS)
460 WINE_TRACE("name=%s\n", name);
462 /* check if this value name has been removed in the settings list */
463 LIST_FOR_EACH( cursor, settings )
465 struct setting *s = LIST_ENTRY(cursor, struct setting, entry);
466 if (strcasecmp(s->path, path) != 0) continue;
467 if (strcasecmp(s->name, name) != 0) continue;
471 WINE_TRACE("this key has been removed, so skipping\n");
477 if (removed) /* this value was deleted by the user, so don't include it */
479 HeapFree(GetProcessHeap(), 0, name);
484 /* grow the array if necessary, add buffer to it, iterate */
485 if (values) values = HeapReAlloc(GetProcessHeap(), 0, values, sizeof(char*) * (valueslen + 1));
486 else values = HeapAlloc(GetProcessHeap(), 0, sizeof(char*));
488 values[valueslen++] = strdupA(name);
489 WINE_TRACE("valueslen is now %d\n", valueslen);
495 WINE_WARN("failed opening registry key %s, res=0x%x\n", path, res);
498 WINE_TRACE("adding settings in list but not registry\n");
500 /* now we have to add the values that aren't in the registry but are in the settings list */
501 LIST_FOR_EACH( cursor, settings )
503 struct setting *setting = LIST_ENTRY(cursor, struct setting, entry);
506 if (strcasecmp(setting->path, path) != 0) continue;
508 if (!setting->value) continue;
510 for (i = 0; i < valueslen; i++)
512 if (strcasecmp(setting->name, values[i]) == 0)
521 WINE_TRACE("%s in list but not registry\n", setting->name);
523 /* otherwise it's been set by the user but isn't in the registry */
524 if (values) values = HeapReAlloc(GetProcessHeap(), 0, values, sizeof(char*) * (valueslen + 1));
525 else values = HeapAlloc(GetProcessHeap(), 0, sizeof(char*));
527 values[valueslen++] = strdupA(setting->name);
530 WINE_TRACE("adding null terminator\n");
533 values = HeapReAlloc(GetProcessHeap(), 0, values, sizeof(char*) * (valueslen + 1));
534 values[valueslen] = NULL;
543 * returns true if the given key/value pair exists in the registry or
544 * has been written to.
546 BOOL reg_key_exists(HKEY root, const char *path, const char *name)
548 char *val = get_reg_key(root, path, name, NULL);
552 HeapFree(GetProcessHeap(), 0, val);
559 static void process_setting(struct setting *s)
563 WINE_TRACE("Setting %s:%s to '%s'\n", s->path, s->name, s->value);
564 set_config_key(s->root, s->path, s->name, s->value, s->type);
568 /* NULL name means remove that path/section entirely */
569 if (s->path && s->name) remove_value(s->root, s->path, s->name);
570 else if (s->path && !s->name) remove_path(s->root, s->path);
576 if (list_empty(settings)) return; /* we will be called for each page when the user clicks OK */
580 while (!list_empty(settings))
582 struct setting *s = (struct setting *) list_head(settings);
588 /* ================================== utility functions ============================ */
590 WCHAR* current_app = NULL; /* the app we are currently editing, or NULL if editing global */
592 /* returns a registry key path suitable for passing to addTransaction */
593 char *keypath(const char *section)
595 static char *result = NULL;
597 HeapFree(GetProcessHeap(), 0, result);
601 result = HeapAlloc(GetProcessHeap(), 0, strlen("AppDefaults\\") + lstrlenW(current_app)*2 + 2 /* \\ */ + strlen(section) + 1 /* terminator */);
602 wsprintf(result, "AppDefaults\\%ls", current_app);
603 if (section[0]) sprintf( result + strlen(result), "\\%s", section );
607 result = strdupA(section);
613 void PRINTERROR(void)
617 FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM,
618 0, GetLastError(), MAKELANGID(LANG_NEUTRAL,SUBLANG_DEFAULT),
619 (LPSTR)&msg, 0, NULL);
621 /* eliminate trailing newline, is this a Wine bug? */
622 *(strrchr(msg, '\r')) = '\0';
624 WINE_TRACE("error: '%s'\n", msg);
627 int initialize(HINSTANCE hInstance)
629 DWORD res = RegCreateKey(HKEY_CURRENT_USER, WINE_KEY_ROOT, &config_key);
631 if (res != ERROR_SUCCESS) {
632 WINE_ERR("RegOpenKey failed on wine config key (%d)\n", res);
637 hPopupMenus = LoadMenu(hInstance, MAKEINTRESOURCE(IDR_WINECFG));
639 /* we could probably just have the list as static data */
640 settings = HeapAlloc(GetProcessHeap(), 0, sizeof(struct list));