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 LoadString(GetModuleHandle(NULL), IDS_WINECFG_TITLE_APP, apptitle, 256);
63 sprintf(newtitle, apptitle, current_app);
67 LoadString(GetModuleHandle(NULL), IDS_WINECFG_TITLE, newtitle, 256);
70 WINE_TRACE("setting title to %s\n", newtitle);
71 SendMessage(GetParent(dialog), PSM_SETTITLE, 0, (LPARAM) newtitle);
76 * get_config_key: Retrieves a configuration value from the registry
78 * char *subkey : the name of the config section
79 * char *name : the name of the config value
80 * char *default : if the key isn't found, return this value instead
82 * Returns a buffer holding the value if successful, NULL if
83 * not. Caller is responsible for releasing the result.
86 static char *get_config_key (HKEY root, const char *subkey, const char *name, const char *def)
93 WINE_TRACE("subkey=%s, name=%s, def=%s\n", subkey, name, def);
95 res = RegOpenKey(root, subkey, &hSubKey);
96 if (res != ERROR_SUCCESS)
98 if (res == ERROR_FILE_NOT_FOUND)
100 WINE_TRACE("Section key not present - using default\n");
101 return def ? strdupA(def) : NULL;
105 WINE_ERR("RegOpenKey failed on wine config key (res=%ld)\n", res);
110 res = RegQueryValueExA(hSubKey, name, NULL, NULL, NULL, &len);
111 if (res == ERROR_FILE_NOT_FOUND)
113 WINE_TRACE("Value not present - using default\n");
114 buffer = def ? strdupA(def) : NULL;
116 } else if (res != ERROR_SUCCESS)
118 WINE_ERR("Couldn't query value's length (res=%ld)\n", res);
122 buffer = HeapAlloc(GetProcessHeap(), 0, len + 1);
124 RegQueryValueEx(hSubKey, name, NULL, NULL, (LPBYTE) buffer, &len);
126 WINE_TRACE("buffer=%s\n", buffer);
128 if (hSubKey && hSubKey != root) RegCloseKey(hSubKey);
134 * set_config_key: convenience wrapper to set a key/value pair
136 * const char *subKey : the name of the config section
137 * const char *valueName : the name of the config value
138 * const char *value : the value to set the configuration key to
140 * Returns 0 on success, non-zero otherwise
142 * If valueName or value is NULL, an empty section will be created
144 static int set_config_key(HKEY root, const char *subkey, const char *name, const void *value, DWORD type) {
148 WINE_TRACE("subkey=%s: name=%s, value=%p, type=%ld\n", subkey, name, value, type);
150 assert( subkey != NULL );
154 res = RegCreateKey(root, subkey, &key);
155 if (res != ERROR_SUCCESS) goto end;
158 if (name == NULL || value == NULL) goto end;
162 case REG_SZ: res = RegSetValueEx(key, name, 0, REG_SZ, value, strlen(value) + 1); break;
163 case REG_DWORD: res = RegSetValueEx(key, name, 0, REG_DWORD, value, sizeof(DWORD)); break;
165 if (res != ERROR_SUCCESS) goto end;
169 if (key && key != root) RegCloseKey(key);
170 if (res != 0) WINE_ERR("Unable to set configuration key %s in section %s, res=%ld\n", name, subkey, res);
174 /* removes the requested value from the registry, however, does not
175 * remove the section if empty. Returns S_OK (0) on success.
177 static HRESULT remove_value(HKEY root, const char *subkey, const char *name)
182 WINE_TRACE("subkey=%s, name=%s\n", subkey, name);
184 hr = RegOpenKey(root, subkey, &key);
185 if (hr != S_OK) return hr;
187 hr = RegDeleteValue(key, name);
188 if (hr != ERROR_SUCCESS) return hr;
193 /* removes the requested subkey from the registry, assuming it exists */
194 static LONG remove_path(HKEY root, char *section) {
196 DWORD max_sub_key_len;
199 LONG ret = ERROR_SUCCESS;
203 WINE_TRACE("section=%s\n", section);
205 if ((ret = RegOpenKey(root, section, &branch_key)) != ERROR_SUCCESS)
208 /* get size information and resize the buffers if necessary */
209 if ((ret = RegQueryInfoKey(branch_key, NULL, NULL, NULL,
210 &subkeys, &max_sub_key_len,
211 NULL, NULL, NULL, NULL, NULL, NULL
215 curr_len = strlen(section);
216 buffer = HeapAlloc(GetProcessHeap(), 0, max_sub_key_len + curr_len + 1);
217 strcpy(buffer, section);
219 buffer[curr_len] = '\\';
220 for (i = subkeys - 1; i >= 0; i--)
222 DWORD buf_len = max_sub_key_len - curr_len - 1;
224 ret = RegEnumKeyEx(branch_key, i, buffer + curr_len + 1,
225 &buf_len, NULL, NULL, NULL, NULL);
226 if (ret != ERROR_SUCCESS && ret != ERROR_MORE_DATA &&
227 ret != ERROR_NO_MORE_ITEMS)
230 remove_path(root, buffer);
232 HeapFree(GetProcessHeap(), 0, buffer);
233 RegCloseKey(branch_key);
235 return RegDeleteKey(root, section);
239 /* ========================================================================= */
241 /* This code exists for the following reasons:
243 * - It makes working with the registry easier
244 * - By storing a mini cache of the registry, we can more easily implement
245 * cancel/revert and apply. The 'settings list' is an overlay on top of
246 * the actual registry data that we can write out at will.
248 * Rather than model a tree in memory, we simply store each absolute (rooted
249 * at the config key) path.
256 HKEY root; /* the key on which path is rooted */
257 char *path; /* path in the registry rooted at root */
258 char *name; /* name of the registry value. if null, this means delete the key */
259 char *value; /* contents of the registry value. if null, this means delete the value */
260 DWORD type; /* type of registry value. REG_SZ or REG_DWORD for now */
263 struct list *settings;
265 static void free_setting(struct setting *setting)
267 assert( setting != NULL );
268 assert( setting->path );
270 WINE_TRACE("destroying %p: %s\n", setting, setting->path);
272 HeapFree(GetProcessHeap(), 0, setting->path);
273 HeapFree(GetProcessHeap(), 0, setting->name);
274 HeapFree(GetProcessHeap(), 0, setting->value);
276 list_remove(&setting->entry);
278 HeapFree(GetProcessHeap(), 0, setting);
282 * Returns the contents of the value at path. If not in the settings
283 * list, it will be fetched from the registry - failing that, the
284 * default will be used.
286 * If already in the list, the contents as given there will be
287 * returned. You are expected to HeapFree the result.
289 char *get_reg_key(HKEY root, const char *path, const char *name, const char *def)
295 WINE_TRACE("path=%s, name=%s, def=%s\n", path, name, def);
297 /* check if it's in the list */
298 LIST_FOR_EACH( cursor, settings )
300 s = LIST_ENTRY(cursor, struct setting, entry);
302 if (root != s->root) continue;
303 if (strcasecmp(path, s->path) != 0) continue;
304 if (strcasecmp(name, s->name) != 0) continue;
306 WINE_TRACE("found %s:%s in settings list, returning %s\n", path, name, s->value);
307 return s->value ? strdupA(s->value) : NULL;
310 /* no, so get from the registry */
311 val = get_config_key(root, path, name, def);
313 WINE_TRACE("returning %s\n", val);
319 * Used to set a registry key.
321 * path is rooted at the config key, ie use "Version" or
322 * "AppDefaults\\fooapp.exe\\Version". You can use keypath()
323 * to get such a string.
325 * name is the value name, or NULL to delete the path.
327 * value is what to set the value to, or NULL to delete it.
329 * type is REG_SZ or REG_DWORD.
331 * These values will be copied when necessary.
333 static void set_reg_key_ex(HKEY root, const char *path, const char *name, const void *value, DWORD type)
338 assert( path != NULL );
340 WINE_TRACE("path=%s, name=%s, value=%p\n", path, name, value);
342 /* firstly, see if we already set this setting */
343 LIST_FOR_EACH( cursor, settings )
345 struct setting *s = LIST_ENTRY(cursor, struct setting, entry);
347 if (root != s->root) continue;
348 if (strcasecmp(s->path, path) != 0) continue;
349 if ((s->name && name) && strcasecmp(s->name, name) != 0) continue;
351 /* are we attempting a double delete? */
352 if (!s->name && !name) return;
354 /* do we want to undelete this key? */
355 if (!s->name && name) s->name = strdupA(name);
357 /* yes, we have already set it, so just replace the content and return */
358 HeapFree(GetProcessHeap(), 0, s->value);
363 s->value = value ? strdupA(value) : NULL;
366 s->value = HeapAlloc(GetProcessHeap(), 0, sizeof(DWORD));
367 memcpy( s->value, value, sizeof(DWORD) );
371 /* are we deleting this key? this won't remove any of the
372 * children from the overlay so if the user adds it again in
373 * that session it will appear to undelete the settings, but
374 * in reality only the settings actually modified by the user
375 * in that session will be restored. we might want to fix this
376 * corner case in future by actually deleting all the children
377 * here so that once it's gone, it's gone.
379 if (!name) s->name = NULL;
384 /* otherwise add a new setting for it */
385 s = HeapAlloc(GetProcessHeap(), 0, sizeof(struct setting));
387 s->path = strdupA(path);
388 s->name = name ? strdupA(name) : NULL;
393 s->value = value ? strdupA(value) : NULL;
396 s->value = HeapAlloc(GetProcessHeap(), 0, sizeof(DWORD));
397 memcpy( s->value, value, sizeof(DWORD) );
401 list_add_tail(settings, &s->entry);
404 void set_reg_key(HKEY root, const char *path, const char *name, const char *value)
406 set_reg_key_ex(root, path, name, value, REG_SZ);
409 void set_reg_key_dword(HKEY root, const char *path, const char *name, DWORD value)
411 set_reg_key_ex(root, path, name, &value, REG_DWORD);
415 * enumerates the value names at the given path, taking into account
416 * the changes in the settings list.
418 * you are expected to HeapFree each element of the array, which is null
419 * terminated, as well as the array itself.
421 char **enumerate_values(HKEY root, char *path)
425 char **values = NULL;
429 res = RegOpenKey(root, path, &key);
430 if (res == ERROR_SUCCESS)
435 DWORD namesize = sizeof(name);
436 BOOL removed = FALSE;
438 /* find out the needed size, allocate a buffer, read the value */
439 if ((res = RegEnumValue(key, i, name, &namesize, NULL, NULL, NULL, NULL)) != ERROR_SUCCESS)
442 WINE_TRACE("name=%s\n", name);
444 /* check if this value name has been removed in the settings list */
445 LIST_FOR_EACH( cursor, settings )
447 struct setting *s = LIST_ENTRY(cursor, struct setting, entry);
448 if (strcasecmp(s->path, path) != 0) continue;
449 if (strcasecmp(s->name, name) != 0) continue;
453 WINE_TRACE("this key has been removed, so skipping\n");
459 if (removed) /* this value was deleted by the user, so don't include it */
461 HeapFree(GetProcessHeap(), 0, name);
466 /* grow the array if necessary, add buffer to it, iterate */
467 if (values) values = HeapReAlloc(GetProcessHeap(), 0, values, sizeof(char*) * (valueslen + 1));
468 else values = HeapAlloc(GetProcessHeap(), 0, sizeof(char*));
470 values[valueslen++] = strdupA(name);
471 WINE_TRACE("valueslen is now %d\n", valueslen);
477 WINE_WARN("failed opening registry key %s, res=0x%lx\n", path, res);
480 WINE_TRACE("adding settings in list but not registry\n");
482 /* now we have to add the values that aren't in the registry but are in the settings list */
483 LIST_FOR_EACH( cursor, settings )
485 struct setting *setting = LIST_ENTRY(cursor, struct setting, entry);
488 if (strcasecmp(setting->path, path) != 0) continue;
490 if (!setting->value) continue;
492 for (i = 0; i < valueslen; i++)
494 if (strcasecmp(setting->name, values[i]) == 0)
503 WINE_TRACE("%s in list but not registry\n", setting->name);
505 /* otherwise it's been set by the user but isn't in the registry */
506 if (values) values = HeapReAlloc(GetProcessHeap(), 0, values, sizeof(char*) * (valueslen + 1));
507 else values = HeapAlloc(GetProcessHeap(), 0, sizeof(char*));
509 values[valueslen++] = strdupA(setting->name);
512 WINE_TRACE("adding null terminator\n");
515 values = HeapReAlloc(GetProcessHeap(), 0, values, sizeof(char*) * (valueslen + 1));
516 values[valueslen] = NULL;
525 * returns true if the given key/value pair exists in the registry or
526 * has been written to.
528 BOOL reg_key_exists(HKEY root, const char *path, const char *name)
530 char *val = get_reg_key(root, path, name, NULL);
534 HeapFree(GetProcessHeap(), 0, val);
541 static void process_setting(struct setting *s)
545 WINE_TRACE("Setting %s:%s to '%s'\n", s->path, s->name, s->value);
546 set_config_key(s->root, s->path, s->name, s->value, s->type);
550 /* NULL name means remove that path/section entirely */
551 if (s->path && s->name) remove_value(s->root, s->path, s->name);
552 else if (s->path && !s->name) remove_path(s->root, s->path);
558 if (list_empty(settings)) return; /* we will be called for each page when the user clicks OK */
562 while (!list_empty(settings))
564 struct setting *s = (struct setting *) list_head(settings);
570 /* ================================== utility functions ============================ */
572 char *current_app = NULL; /* the app we are currently editing, or NULL if editing global */
574 /* returns a registry key path suitable for passing to addTransaction */
575 char *keypath(const char *section)
577 static char *result = NULL;
579 HeapFree(GetProcessHeap(), 0, result);
583 result = HeapAlloc(GetProcessHeap(), 0, strlen("AppDefaults\\") + strlen(current_app) + 2 /* \\ */ + strlen(section) + 1 /* terminator */);
584 sprintf(result, "AppDefaults\\%s", current_app);
585 if (section[0]) sprintf( result + strlen(result), "\\%s", section );
589 result = strdupA(section);
595 void PRINTERROR(void)
599 FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM,
600 0, GetLastError(), MAKELANGID(LANG_NEUTRAL,SUBLANG_DEFAULT),
601 (LPSTR)&msg, 0, NULL);
603 /* eliminate trailing newline, is this a Wine bug? */
604 *(strrchr(msg, '\r')) = '\0';
606 WINE_TRACE("error: '%s'\n", msg);
609 int initialize(HINSTANCE hInstance)
611 DWORD res = RegCreateKey(HKEY_CURRENT_USER, WINE_KEY_ROOT, &config_key);
613 if (res != ERROR_SUCCESS) {
614 WINE_ERR("RegOpenKey failed on wine config key (%ld)\n", res);
619 hPopupMenus = LoadMenu(hInstance, MAKEINTRESOURCE(IDR_WINECFG));
621 /* we could probably just have the list as static data */
622 settings = HeapAlloc(GetProcessHeap(), 0, sizeof(struct list));