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#import "Utils.h"
#import <Webkit/WebScriptObject.h>
static Utils* sharedInstance = nil;
@implementation Utils
- (float) titleBarHeight:(NSWindow*)aWindow
{
NSRect frame = [aWindow frame];
NSRect contentRect = [NSWindow contentRectForFrameRect: frame
styleMask: NSTitledWindowMask];
return (frame.size.height - contentRect.size.height);
}
- (NSString*) pathForResource:(NSString*)resourcepath
{
NSBundle * mainBundle = [NSBundle mainBundle];
NSMutableArray *directoryParts = [NSMutableArray arrayWithArray:[resourcepath componentsSeparatedByString:@"/"]];
NSString *filename = [directoryParts lastObject];
[directoryParts removeLastObject];
NSString *directoryStr = [NSString stringWithFormat:@"%@/%@", kStartFolder, [directoryParts componentsJoinedByString:@"/"]];
return [mainBundle pathForResource:filename
ofType:@""
inDirectory:directoryStr];
}
- (NSString*) convertDictionaryToJSON:(NSDictionary*)dict {
// Convert defaults Dictionary to JSON.
NSError *error;
NSData *jsonData = [NSJSONSerialization
dataWithJSONObject:dict
options:NSJSONWritingPrettyPrinted // Pass 0 if you don't care about the readability of the generated string
error:&error];
NSString *jsonString;
if (! jsonData) {
NSLog(@"Got an error converting to JSON: %@", error);
}
else {
jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
}
return jsonString;
}
// Convert JavaScript array (arrives as a WebScriptObject) into an NSArray of strings.
- (NSArray*) convertJSarrayToNSArray:(WebScriptObject*)jsArray {
NSInteger count = [[jsArray valueForKey:@"length"] integerValue];
NSMutableArray *args = [NSMutableArray array];
for (int i = 0; i < count; i++) {
NSString *item = [jsArray webScriptValueAtIndex:i];
if ([item isKindOfClass:[NSString class]]) {
[args addObject:item];
}
}
return args;
}
#pragma mark -
#pragma mark Singleton methods
+ (Utils*) sharedInstance
{
@synchronized(self)
{
if (sharedInstance == nil){
sharedInstance = [[Utils alloc] init];
}
}
return sharedInstance;
}
+ (id) allocWithZone:(NSZone *)zone {
@synchronized(self) {
if (sharedInstance == nil) {
sharedInstance = [super allocWithZone:zone];
return sharedInstance; // assignment and return on first allocation
}
}
return nil; // on subsequent allocation attempts return nil
}
- (id) copyWithZone:(NSZone *)zone
{
return self;
}
@end
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