forked from futuretap/InAppSettingsKit
/
IASKSettingsReader.m
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/
IASKSettingsReader.m
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//
// IASKSettingsReader.m
// http://www.inappsettingskit.com
//
// Copyright (c) 2009:
// Luc Vandal, Edovia Inc., http://www.edovia.com
// Ortwin Gentz, FutureTap GmbH, http://www.futuretap.com
// All rights reserved.
//
// It is appreciated but not required that you give credit to Luc Vandal and Ortwin Gentz,
// as the original authors of this code. You can give credit in a blog post, a tweet or on
// a info page of your app. Also, the original authors appreciate letting them know if you use this code.
//
// This code is licensed under the BSD license that is available at: http://www.opensource.org/licenses/bsd-license.php
//
#import "IASKSettingsReader.h"
#import "IASKSpecifier.h"
@interface IASKSettingsReader (private)
- (void)_reinterpretBundle:(NSDictionary*)settingsBundle;
- (BOOL)_sectionHasHeading:(NSInteger)section;
- (NSString *)platformSuffix;
- (NSString *)locateSettingsFile:(NSString *)file;
@end
@implementation IASKSettingsReader
@synthesize path=_path,
localizationTable=_localizationTable,
bundlePath=_bundlePath,
settingsBundle=_settingsBundle,
dataSource=_dataSource;
- (id)init {
return [self initWithFile:@"Root"];
}
- (id)initWithFile:(NSString*)file {
if ((self=[super init])) {
self.path = [self locateSettingsFile: file];
[self setSettingsBundle:[NSDictionary dictionaryWithContentsOfFile:self.path]];
self.bundlePath = [self.path stringByDeletingLastPathComponent];
_bundle = [[NSBundle bundleWithPath:[self bundlePath]] retain];
// Look for localization file
self.localizationTable = [[[[self.path stringByDeletingPathExtension] // removes '.plist'
stringByDeletingPathExtension] // removes potential '.inApp'
lastPathComponent] // strip absolute path
stringByReplacingOccurrencesOfString:[self platformSuffix] withString:@""]; // removes potential '~device' (~ipad, ~iphone)
if([_bundle pathForResource:self.localizationTable ofType:@"strings"] == nil){
// Could not find the specified localization: use default
self.localizationTable = @"Root";
}
if (_settingsBundle) {
[self _reinterpretBundle:_settingsBundle];
}
}
return self;
}
- (void)dealloc {
[_path release];
[_localizationTable release];
[_bundlePath release];
[_settingsBundle release];
[_dataSource release];
[_bundle release];
[super dealloc];
}
- (void)_reinterpretBundle:(NSDictionary*)settingsBundle {
NSArray *preferenceSpecifiers = [settingsBundle objectForKey:kIASKPreferenceSpecifiers];
NSInteger sectionCount = -1;
NSMutableArray *dataSource = [[[NSMutableArray alloc] init] autorelease];
for (NSDictionary *specifier in preferenceSpecifiers) {
if ([(NSString*)[specifier objectForKey:kIASKType] isEqualToString:kIASKPSGroupSpecifier]) {
NSMutableArray *newArray = [[NSMutableArray alloc] init];
[newArray addObject:specifier];
[dataSource addObject:newArray];
[newArray release];
sectionCount++;
}
else {
if (sectionCount == -1) {
NSMutableArray *newArray = [[NSMutableArray alloc] init];
[dataSource addObject:newArray];
[newArray release];
sectionCount++;
}
IASKSpecifier *newSpecifier = [[IASKSpecifier alloc] initWithSpecifier:specifier];
[(NSMutableArray*)[dataSource objectAtIndex:sectionCount] addObject:newSpecifier];
[newSpecifier release];
}
}
[self setDataSource:dataSource];
}
- (BOOL)_sectionHasHeading:(NSInteger)section {
return [[[[self dataSource] objectAtIndex:section] objectAtIndex:0] isKindOfClass:[NSDictionary class]];
}
- (NSInteger)numberOfSections {
return [[self dataSource] count];
}
- (NSInteger)numberOfRowsForSection:(NSInteger)section {
int headingCorrection = [self _sectionHasHeading:section] ? 1 : 0;
return [(NSArray*)[[self dataSource] objectAtIndex:section] count] - headingCorrection;
}
- (IASKSpecifier*)specifierForIndexPath:(NSIndexPath*)indexPath {
int headingCorrection = [self _sectionHasHeading:indexPath.section] ? 1 : 0;
IASKSpecifier *specifier = [[[self dataSource] objectAtIndex:indexPath.section] objectAtIndex:(indexPath.row+headingCorrection)];
specifier.settingsReader = self;
return specifier;
}
- (IASKSpecifier*)specifierForKey:(NSString*)key {
for (NSArray *specifiers in _dataSource) {
for (id sp in specifiers) {
if ([sp isKindOfClass:[IASKSpecifier class]]) {
if ([[sp key] isEqualToString:key]) {
return sp;
}
}
}
}
return nil;
}
- (NSString*)titleForSection:(NSInteger)section {
if ([self _sectionHasHeading:section]) {
NSDictionary *dict = [[[self dataSource] objectAtIndex:section] objectAtIndex:kIASKSectionHeaderIndex];
return [_bundle localizedStringForKey:[dict objectForKey:kIASKTitle] value:[dict objectForKey:kIASKTitle] table:self.localizationTable];
}
return nil;
}
- (NSString*)keyForSection:(NSInteger)section {
if ([self _sectionHasHeading:section]) {
return [[[[self dataSource] objectAtIndex:section] objectAtIndex:kIASKSectionHeaderIndex] objectForKey:kIASKKey];
}
return nil;
}
- (NSString*)footerTextForSection:(NSInteger)section {
if ([self _sectionHasHeading:section]) {
NSDictionary *dict = [[[self dataSource] objectAtIndex:section] objectAtIndex:kIASKSectionHeaderIndex];
return [_bundle localizedStringForKey:[dict objectForKey:kIASKFooterText] value:[dict objectForKey:kIASKFooterText] table:self.localizationTable];
}
return nil;
}
- (NSString*)titleForStringId:(NSString*)stringId {
return [_bundle localizedStringForKey:stringId value:stringId table:self.localizationTable];
}
- (NSString*)pathForImageNamed:(NSString*)image {
return [[self bundlePath] stringByAppendingPathComponent:image];
}
- (NSString *)platformSuffix {
BOOL isPad = NO;
#if (__IPHONE_OS_VERSION_MAX_ALLOWED >= 30200)
isPad = UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad;
#endif
return isPad ? @"~ipad" : @"~iphone";
}
- (NSString *)file:(NSString *)file
withBundle:(NSString *)bundle
suffix:(NSString *)suffix
extension:(NSString *)extension {
NSString *appBundle = [[NSBundle mainBundle] bundlePath];
bundle = [appBundle stringByAppendingPathComponent:bundle];
file = [file stringByAppendingFormat:@"%@%@", suffix, extension];
return [bundle stringByAppendingPathComponent:file];
}
- (NSString *)locateSettingsFile: (NSString *)file {
// The file is searched in the following order:
//
// InAppSettings.bundle/FILE~DEVICE.inApp.plist
// InAppSettings.bundle/FILE.inApp.plist
// InAppSettings.bundle/FILE~DEVICE.plist
// InAppSettings.bundle/FILE.plist
// Settings.bundle/FILE~DEVICE.inApp.plist
// Settings.bundle/FILE.inApp.plist
// Settings.bundle/FILE~DEVICE.plist
// Settings.bundle/FILE.plist
//
// where DEVICE is either "iphone" or "ipad" depending on the current
// interface idiom.
//
// Settings.app uses the ~DEVICE suffixes since iOS 4.0. There are some
// differences from this implementation:
// - For an iPhone-only app running on iPad, Settings.app will not use the
// ~iphone suffix. There is no point in using these suffixes outside
// of universal apps anyway.
// - This implementation uses the device suffixes on iOS 3.x as well.
NSArray *bundles =
[NSArray arrayWithObjects:kIASKBundleFolderAlt, kIASKBundleFolder, nil];
NSArray *extensions =
[NSArray arrayWithObjects:@".inApp.plist", @".plist", nil];
NSArray *suffixes =
[NSArray arrayWithObjects:[self platformSuffix], @"", nil];
NSString *path = nil;
NSFileManager *fileManager = [NSFileManager defaultManager];
for (NSString *bundle in bundles) {
for (NSString *extension in extensions) {
for (NSString *suffix in suffixes) {
path = [self file:file
withBundle:bundle
suffix:suffix
extension:extension];
if ([fileManager fileExistsAtPath:path]) {
goto exitFromNestedLoop;
}
}
}
}
exitFromNestedLoop:
return path;
}
@end