RAAppSliderProvider.mm

#import "RAAppSliderProvider.h"
#import "RAHostedAppView.h"

@interface RAAppSliderProvider () {
	NSMutableDictionary *cachedViews;
}
@end

@implementation RAAppSliderProvider
@synthesize currentIndex, availableIdentifiers;

-(id) init
{
	if (self = [super init])
	{
		cachedViews = [NSMutableDictionary dictionary];
	}
	return self;
}

-(BOOL) canGoLeft
{
	return currentIndex - 1 >= 0 && availableIdentifiers.count > 0;
}

-(BOOL) canGoRight
{
	return availableIdentifiers.count > currentIndex + 1;
}

-(RAHostedAppView*) viewToTheLeft
{
	if (self.canGoLeft)
	{
		NSString *ident = [availableIdentifiers objectAtIndex:currentIndex - 1];
		
		if (!ident) return nil;
		if ([cachedViews objectForKey:ident]) return cachedViews[ident];

		RAHostedAppView *view = [[RAHostedAppView alloc] initWithBundleIdentifier:ident];
		[view preloadApp];
		cachedViews[ident] = view;
		return view;
	}
	return nil;
}

-(RAHostedAppView*) viewToTheRight
{
	if (self.canGoRight)
	{
		NSString *ident = [availableIdentifiers objectAtIndex:currentIndex + 1];
		
		if (!ident) return nil;
		if ([cachedViews objectForKey:ident]) return cachedViews[ident];

		RAHostedAppView *view = [[RAHostedAppView alloc] initWithBundleIdentifier:ident];
		[view preloadApp];
		cachedViews[ident] = view;
		return view;
	}
	return nil;
}

-(RAHostedAppView*) viewAtCurrentIndex
{
	NSString *ident = [availableIdentifiers objectAtIndex:currentIndex];
	
	if (!ident) return nil;
	if ([cachedViews objectForKey:ident]) return cachedViews[ident];

	RAHostedAppView *view = [[RAHostedAppView alloc] initWithBundleIdentifier:ident];
	[view preloadApp];
	cachedViews[ident] = view;
	return view;
}

-(void) goToTheLeft
{
	if (self.canGoLeft)
		currentIndex--;
}

-(void) goToTheRight
{
	if (self.canGoRight)
		currentIndex++;
}
@end