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Look up images based users localisation #15

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80 changes: 60 additions & 20 deletions StandardPaths/StandardPaths.m
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Original file line number Diff line number Diff line change
Expand Up @@ -251,18 +251,69 @@ - (NSString *)pathForResource:(NSString *)file
return [[self resourcePath] stringByAppendingPathComponent:file];
}

- (NSArray *)localisedPathsForResource:(NSString *)fileOrPath
{
NSArray *localizations = [[NSBundle mainBundle] preferredLocalizations];
NSMutableArray *paths = [[NSMutableArray alloc] initWithCapacity:localizations.count];
for (NSString *localization in localizations) {
NSString *path = [[[self resourcePath] stringByAppendingPathComponent:[NSString stringWithFormat:@"%@.lproj", localization]] stringByAppendingPathComponent:fileOrPath];
[paths addObject:path];
}
NSString *path = [[[self resourcePath] stringByAppendingPathComponent:@"Base.lproj"] stringByAppendingPathComponent:fileOrPath];
[paths addObject:path];

return paths;
}

- (NSString *)normalizedPathForFile:(NSString *)fileOrPath
{
return [self normalizedPathForFile:fileOrPath ofType:@"png"];
}

- (NSString *)normalizedPathForFile:(NSString *)fileOrPath ofType:(NSString *)extension
{

//normalize extension
if (![[fileOrPath SP_pathExtension] length] && [extension length])
{
fileOrPath = [fileOrPath SP_stringByAppendingPathExtension:extension];
}

if ([fileOrPath isAbsolutePath])
{
return [self normalizedPathForAbsoluteFilePath:fileOrPath];
}

NSString *finalPath = nil;

NSString *absoluteFileOrPath = [self pathForResource:fileOrPath];
finalPath = [self normalizedPathForAbsoluteFilePath:absoluteFileOrPath];
if (finalPath)
{
return finalPath;
}

NSArray *paths = [self localisedPathsForResource:fileOrPath];
for (NSString *localisedPath in paths)
{
finalPath = [self normalizedPathForAbsoluteFilePath:localisedPath];
if (finalPath)
{
return finalPath;
}
}

return finalPath;
}


- (NSString *)normalizedPathForAbsoluteFilePath:(NSString *)absoluteFilePath
{
//set up cache
static NSCache *cache;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{

cache = [[NSCache alloc] init];

#if TARGET_OS_IPHONE
Expand All @@ -273,23 +324,11 @@ - (NSString *)normalizedPathForFile:(NSString *)fileOrPath ofType:(NSString *)ex

});

//normalize extension
if (![[fileOrPath SP_pathExtension] length] && [extension length])
{
fileOrPath = [fileOrPath SP_stringByAppendingPathExtension:extension];
}

//convert to absolute path
if (![fileOrPath isAbsolutePath])
{
fileOrPath = [self pathForResource:fileOrPath];
}

@synchronized (cache)
{
//check cache
NSString *cacheKey = fileOrPath;
BOOL cachable = [fileOrPath hasPrefix:[self resourcePath]];
NSString *cacheKey = absoluteFilePath;
BOOL cachable = [absoluteFilePath hasPrefix:[self resourcePath]];
if (cachable)
{
NSString *path = [cache objectForKey:cacheKey];
Expand All @@ -300,15 +339,15 @@ - (NSString *)normalizedPathForFile:(NSString *)fileOrPath ofType:(NSString *)ex
}

//generate all possible paths
NSArray *paths = @[fileOrPath];
NSArray *paths = @[absoluteFilePath];

//check for Retina
if (!SP_IS_RETINA())
{
//insert Retina versions before non-Retina
paths = @[[fileOrPath stringByAppendingSuffixForScale:3],
[fileOrPath stringByAppendingSuffixForScale:2],
fileOrPath];
paths = @[[absoluteFilePath stringByAppendingSuffixForScale:3],
[absoluteFilePath stringByAppendingSuffixForScale:2],
absoluteFilePath];
}

switch (UI_USER_INTERFACE_IDIOM())
Expand Down Expand Up @@ -382,9 +421,10 @@ - (NSString *)normalizedPathForFile:(NSString *)fileOrPath ofType:(NSString *)ex
case UIUserInterfaceIdiomDesktop:
{
//add HiDPI tiff extension
NSString *extension = [absoluteFilePath pathExtension];
if ([@[@"", @"png", @"jpg", @"jpeg"] containsObject:[extension lowercaseString]])
{
paths = [paths arrayByAddingObject:[fileOrPath stringByReplacingPathExtensionWithExtension:@"tiff"]];
paths = [paths arrayByAddingObject:[absoluteFilePath stringByReplacingPathExtensionWithExtension:@"tiff"]];
}

//add HD suffix
Expand Down