X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=OSX%2FPrefsReader.m;h=4044280294aeb2fb07158b1ff2829aab25fce3f5;hb=6afd6db0ae9396cd7ff897ade597cd5483f49b0e;hp=507a557b09b5cbdc498d77f2c6b48f4a370ed923;hpb=f0261d8acab611f3433160e4f07367b870439739;p=xscreensaver

diff --git a/OSX/PrefsReader.m b/OSX/PrefsReader.m
index 507a557b..40442802 100644
--- a/OSX/PrefsReader.m
+++ b/OSX/PrefsReader.m
@@ -1,4 +1,4 @@
-/* xscreensaver, Copyright (c) 2006-2009 Jamie Zawinski <jwz@jwz.org>
+/* xscreensaver, Copyright (c) 2006-2013 Jamie Zawinski <jwz@jwz.org>
  *
  * Permission to use, copy, modify, distribute, and sell this software and its
  * documentation for any purpose is hereby granted without fee, provided that
@@ -16,12 +16,219 @@
    the UI (XScreenSaverConfigSheet).
  */
 
-#import <ScreenSaver/ScreenSaverDefaults.h>
+#ifndef USE_IPHONE
+# import <ScreenSaver/ScreenSaverDefaults.h>
+#endif
+
 #import "PrefsReader.h"
+#import "Updater.h"
 #import "screenhackI.h"
 
+#ifndef USE_IPHONE
+
+#include <objc/runtime.h>
+
+/* GlobalDefaults is an NSUserDefaults implementation that writes into
+   the preferences key we provide, instead of whatever the default would
+   be for this app.  We do this by invoking the Core Foundation preferences
+   routines directly, while presenting the same API as NSUserDefaults.
+
+   We need this so that global prefs will go into the file
+   Library/Preferences/org.jwz.xscreensaver.updater.plist instead of into
+   Library/Preferences/ByHost/org.jwz.xscreensaver.Maze.XXXXX.plist
+   with the per-saver prefs.
+
+   The ScreenSaverDefaults class *almost* does this, but it always writes
+   into the ByHost subdirectory, which means it's not readable by an app
+   that tries to access it with a plain old +standardUserDefaults.
+ */
+@interface GlobalDefaults : NSUserDefaults
+{
+  NSString *domain;
+  NSDictionary *defaults;
+}
+@end
+
+@implementation GlobalDefaults
+- (id) initWithDomain:(NSString *)_domain module:(NSString *)_module
+{
+  // Key-Value Observing tries to create an Objective-C class named
+  // NSKVONotifying_GlobalDefaults when the configuration page is shown. But if
+  // this is the second XScreenSaver .saver running in the same process, class
+  // creation fails because that class name was already used by the first
+  // .saver, and it refers to the GlobalDefaults from the other .saver.
+
+  // This gives the class a unique name, sidestepping the above issue.
+
+  // It really just needs to be unique for this .saver and this instance.
+  // Using the pointer to the .saver's mach_header and the full path to the
+  // .saver would be preferable, but this should be good enough.
+  char class_name[128];
+  sprintf(class_name, "GlobalDefaults_%s_%p_%u",
+          strrchr(_module.UTF8String, '.') + 1, self, random());
+  Class c = objc_allocateClassPair([GlobalDefaults class], class_name, 0);
+  if (!c)
+    return nil;
+  objc_registerClassPair(c);
+
+  self = [super init];
+  object_setClass(self, c);
+  domain = [_domain retain];
+  return self;
+}
+
+- (void) dealloc
+{
+  Class c = object_getClass(self);
+
+  [domain release];
+  [defaults release];
+  [super dealloc];
+
+  objc_disposeClassPair(c);
+}
+
+- (void)registerDefaults:(NSDictionary *)dict
+{
+  defaults = [dict retain];
+}
+
+- (id)objectForKey:(NSString *)key
+{
+  NSObject *obj = (NSObject *)
+    CFPreferencesCopyAppValue ((CFStringRef) key, (CFStringRef) domain);
+  if (!obj && defaults)
+    obj = [defaults objectForKey:key];
+  return obj;
+}
+
+- (void)setObject:(id)value forKey:(NSString *)key
+{
+  if (value && defaults) {
+    // If the value is the default, then remove it instead.
+    NSObject *def = [defaults objectForKey:key];
+    if (def && [def isEqual:value])
+      value = NULL;
+  }
+  CFPreferencesSetAppValue ((CFStringRef) key,
+                            (CFPropertyListRef) value,
+                            (CFStringRef) domain);
+}
+
+
+- (BOOL)synchronize
+{
+  return CFPreferencesAppSynchronize ((CFStringRef) domain);
+}
+
+
+// Make sure these all call our objectForKey.
+// Might not be necessary, but safe.
+
+- (NSString *)stringForKey:(NSString *)key
+{
+  return [[self objectForKey:key] stringValue];
+}
+
+- (NSArray *)arrayForKey:(NSString *)key
+{
+  return (NSArray *) [self objectForKey:key];
+}
+
+- (NSDictionary *)dictionaryForKey:(NSString *)key
+{
+  return (NSDictionary *) [self objectForKey:key];
+}
+
+- (NSData *)dataForKey:(NSString *)key
+{
+  return (NSData *) [self objectForKey:key];
+}
+
+- (NSArray *)stringArrayForKey:(NSString *)key
+{
+  return (NSArray *) [self objectForKey:key];
+}
+
+- (NSInteger)integerForKey:(NSString *)key
+{
+  return [[self objectForKey:key] integerValue];
+}
+
+- (float)floatForKey:(NSString *)key
+{
+  return [[self objectForKey:key] floatValue];
+}
+
+- (double)doubleForKey:(NSString *)key
+{
+  return [[self objectForKey:key] doubleValue];
+}
+
+- (BOOL)boolForKey:(NSString *)key
+{
+  return [[self objectForKey:key] integerValue];
+}
+
+// Make sure these all call our setObject.
+// Might not be necessary, but safe.
+
+- (void)removeObjectForKey:(NSString *)key
+{
+  [self setObject:NULL forKey:key];
+}
+
+- (void)setInteger:(NSInteger)value forKey:(NSString *)key
+{
+  [self setObject:[NSNumber numberWithInteger:value] forKey:key];
+}
+
+- (void)setFloat:(float)value forKey:(NSString *)key
+{
+  [self setObject:[NSNumber numberWithFloat:value] forKey:key];
+}
+
+- (void)setDouble:(double)value forKey:(NSString *)key
+{
+  [self setObject:[NSNumber numberWithDouble:value] forKey:key];
+}
+
+- (void)setBool:(BOOL)value forKey:(NSString *)key
+{
+  [self setObject:[NSNumber numberWithBool:value] forKey:key];
+}
+@end
+
+
+#endif // !USE_IPHONE
+
+
 @implementation PrefsReader
 
+/* Normally we read resources by looking up "KEY" in the database
+   "org.jwz.xscreensaver.SAVERNAME".  But in the all-in-one iPhone
+   app, everything is stored in the database "org.jwz.xscreensaver"
+   instead, so transform keys to "SAVERNAME.KEY".
+
+   NOTE: This is duplicated in XScreenSaverConfigSheet.m, cause I suck.
+ */
+- (NSString *) makeKey:(NSString *)key
+{
+# ifdef USE_IPHONE
+  NSString *prefix = [saver_name stringByAppendingString:@"."];
+  if (! [key hasPrefix:prefix])  // Don't double up!
+    key = [prefix stringByAppendingString:key];
+# endif
+  return key;
+}
+
+- (NSString *) makeCKey:(const char *)key
+{
+  return [self makeKey:[NSString stringWithCString:key
+                                 encoding:NSUTF8StringEncoding]];
+}
+
+
 /* Converts an array of "key:value" strings to an NSDictionary.
  */
 - (NSDictionary *) defaultsToDict: (const char * const *) defs
@@ -41,7 +248,7 @@
     while (*val == ' ' || *val == '\t')
       val++;
 
-    int L = strlen(val);
+    unsigned long L = strlen(val);
     while (L > 0 && (val[L-1] == ' ' || val[L-1] == '\t'))
       val[--L] = 0;
 
@@ -49,8 +256,7 @@
     // decide whether it's a boolean, int, float, or string, and store
     // an object of the appropriate type in the prefs.
     //
-    NSString *nskey = [NSString stringWithCString:key
-                                         encoding:NSUTF8StringEncoding];
+    NSString *nskey = [self makeCKey:key];
     NSObject *nsval;
     int dd;
     double ff;
@@ -87,10 +293,30 @@
   // Store the contents of 'defaults' into the real preferences database.
   NSDictionary *defsdict = [self defaultsToDict:defs];
   [userDefaults registerDefaults:defsdict];
+  [globalDefaults registerDefaults:UPDATER_DEFAULTS];
+
+  // Save a copy of the default options, since iOS doesn't have
+  // [userDefaultsController initialValues].
+  //
+  if (defaultOptions) 
+    [defaultOptions release];
+  defaultOptions = [[NSMutableDictionary dictionaryWithCapacity:20]
+                     retain];
+  for (NSString *key in defsdict) {
+    [defaultOptions setValue:[defsdict objectForKey:key] forKey:key];
+  }
 
+# ifndef USE_IPHONE
   userDefaultsController = 
     [[NSUserDefaultsController alloc] initWithDefaults:userDefaults
                                       initialValues:defsdict];
+  globalDefaultsController = 
+    [[NSUserDefaultsController alloc] initWithDefaults:globalDefaults
+                                      initialValues:UPDATER_DEFAULTS];
+# else  // USE_IPHONE
+  userDefaultsController   = [userDefaults retain];
+  globalDefaultsController = [userDefaults retain];
+# endif // USE_IPHONE
 
   NSDictionary *optsdict = [NSMutableDictionary dictionaryWithCapacity:20];
 
@@ -100,15 +326,16 @@
     
     while (*resource == '.' || *resource == '*')
       resource++;
-    NSString *nsresource = [NSString stringWithCString:resource
-                                              encoding:NSUTF8StringEncoding];
+    NSString *nsresource = [self makeCKey:resource];
     
     // make sure there's no resource mentioned in options and not defaults.
     if (![defsdict objectForKey:nsresource]) {
-      if (! (!strcmp(resource, "font") ||    // don't warn about these
+      if (! (!strcmp(resource, "font")        ||    // don't warn about these
+             !strcmp(resource, "foreground")  ||
              !strcmp(resource, "textLiteral") ||
-             !strcmp(resource, "textFile") ||
-             !strcmp(resource, "textURL") ||
+             !strcmp(resource, "textFile")    ||
+             !strcmp(resource, "textURL")     ||
+             !strcmp(resource, "textProgram") ||
              !strcmp(resource, "imageDirectory")))
         NSLog (@"warning: \"%s\" is in options but not defaults", resource);
     }
@@ -117,11 +344,9 @@
     opts++;
   }
 
-  // make sure there's no resource mentioned in defaults and not options.
-  NSEnumerator *enumerator = [defsdict keyEnumerator];
-  NSString *key;
-  while ((key = [enumerator nextObject])) {
 #if 0
+  // make sure there's no resource mentioned in defaults and not options.
+  for (NSString *key in defsdict) {
     if (! [optsdict objectForKey:key])
       if (! ([key isEqualToString:@"foreground"] || // don't warn about these
              [key isEqualToString:@"background"] ||
@@ -142,8 +367,26 @@
              [key isEqualToString:@"TVTint"]
              ))
       NSLog (@"warning: \"%@\" is in defaults but not options", key);
+  }
 #endif /* 0 */
+
+#if 0
+  // Dump the entire resource database.
+  NSLog(@"userDefaults:");
+  NSDictionary *d = [userDefaults dictionaryRepresentation];
+  for (NSObject *key in [[d allKeys]
+                          sortedArrayUsingSelector:@selector(compare:)]) {
+    NSObject *val = [d objectForKey:key];
+    NSLog (@"%@ = %@", key, val);
+  }
+  NSLog(@"globalDefaults:");
+  d = [globalDefaults dictionaryRepresentation];
+  for (NSObject *key in [[d allKeys]
+                          sortedArrayUsingSelector:@selector(compare:)]) {
+    NSObject *val = [d objectForKey:key];
+    NSLog (@"%@ = %@", key, val);
   }
+#endif
 
 }
 
@@ -153,24 +396,50 @@
   return userDefaultsController;
 }
 
+- (NSUserDefaultsController *) globalDefaultsController
+{
+  NSAssert(globalDefaultsController, @"globalDefaultsController uninitialized");
+  return globalDefaultsController;
+}
+
+- (NSDictionary *) defaultOptions
+{
+  NSAssert(defaultOptions, @"defaultOptions uninitialized");
+  return defaultOptions;
+}
+
 
 - (NSObject *) getObjectResource: (const char *) name
 {
+  // Only look in globalDefaults for updater preferences.
+
+  static NSDictionary *updaterDefaults;
+  if (!updaterDefaults) {
+    updaterDefaults = UPDATER_DEFAULTS;
+    [updaterDefaults retain];
+  }
+  
+  NSUserDefaults *defaults =
+    [updaterDefaults objectForKey:[NSString stringWithUTF8String:name]] ?
+    globalDefaults :
+    userDefaults;
+  
+  const char *name2 = name;
   while (1) {
-    NSString *key = [NSString stringWithCString:name
-                                       encoding:NSUTF8StringEncoding];
-    NSObject *obj = [userDefaults objectForKey:key];
+    NSString *key = [self makeCKey:name2];
+    NSObject *obj = [defaults objectForKey:key];
     if (obj)
       return obj;
 
     // If key is "foo.bar.baz", check "foo.bar.baz", "bar.baz", and "baz".
     //
-    const char *dot = strchr (name, '.');
+    const char *dot = strchr (name2, '.');
     if (dot && dot[1])
-      name = dot + 1;
+      name2 = dot + 1;
     else
-      return nil;
+      break;
   }
+  return NULL;
 }
 
 
@@ -190,7 +459,8 @@
            !strcmp(name, "titleFont") ||
            !strcmp(name, "fpsFont") ||    // fps.c
            !strcmp(name, "foreground") || // fps.c
-           !strcmp(name, "background")
+           !strcmp(name, "background") ||
+           !strcmp(name, "textLiteral")
            ))
       NSLog(@"warning: no preference \"%s\" [string]", name);
     return NULL;
@@ -268,11 +538,30 @@
 
 - (BOOL) getBooleanResource: (const char *) name
 {
-  int n = [self getIntegerResource:name];
-  if (n == 0) return NO;
-  else if (n == 1) return YES;
-  else {
-    NSAssert2(0, @"%s = %d but should have been 0 or 1", name, n);
+  NSObject *o = [self getObjectResource:name];
+  if (! o) {
+    return NO;
+  } else if ([o isKindOfClass:[NSNumber class]]) {
+    double n = [(NSNumber *) o doubleValue];
+    if (n == 0) return NO;
+    else if (n == 1) return YES;
+    else goto FAIL;
+  } else if ([o isKindOfClass:[NSString class]]) {
+    NSString *s = [((NSString *) o) lowercaseString];
+    if ([s isEqualToString:@"true"] ||
+        [s isEqualToString:@"yes"] ||
+        [s isEqualToString:@"1"])
+      return YES;
+    else if ([s isEqualToString:@"false"] ||
+             [s isEqualToString:@"no"] ||
+             [s isEqualToString:@"0"] ||
+             [s isEqualToString:@""])
+      return NO;
+    else
+      goto FAIL;
+  } else {
+  FAIL:
+    NSAssert2(0, @"%s = \"%@\" but should have been a boolean", name, o);
     abort();
   }
 }
@@ -285,7 +574,21 @@
   self = [self init];
   if (!self) return nil;
 
+# ifndef USE_IPHONE
   userDefaults = [ScreenSaverDefaults defaultsForModuleWithName:name];
+  globalDefaults = [[GlobalDefaults alloc] initWithDomain:@UPDATER_DOMAIN
+                                                   module:name];
+# else  // USE_IPHONE
+  userDefaults = [NSUserDefaults standardUserDefaults];
+  globalDefaults = [userDefaults retain];
+# endif // USE_IPHONE
+
+  // Convert "org.jwz.xscreensaver.NAME" to just "NAME".
+  NSRange r = [name rangeOfString:@"." options:NSBackwardsSearch];
+  if (r.length)
+    name = [name substringFromIndex:r.location+1];
+  name = [name stringByReplacingOccurrencesOfString:@" " withString:@""];
+  saver_name = [name retain];
 
   [self registerXrmKeys:opts defaults:defs];
   return self;
@@ -293,7 +596,10 @@
 
 - (void) dealloc
 {
+  [saver_name release];
   [userDefaultsController release];
+  [globalDefaultsController release];
+  [globalDefaults release];
   [super dealloc];
 }