DCBuiltInTransitionView.m

#import <QuartzCore/QuartzCore.h>
#import "SpringBoard-Minimal.h"
#import "DCSettings.h"
#import "DCTypes.h"
#import "DCBuiltInTransitionView.h"
#include "DCFunctions.h"

@interface CAFilter : NSObject
+ (id)filterWithName:(NSString *)name;
@end

@interface DCBuiltInTransitionView ()
- (NSString *)stringForDirection:(DCTransitionDirection)direction;
- (CGPoint)homeButtonPointForInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation;
@end

@implementation DCBuiltInTransitionView

- (void)animateWithDuration:(CFTimeInterval)duration
{
	CATransition *animation = [CATransition animation];
	[animation setDelegate:[self delegate]];
	[animation setValue:@([self mode]) forKey:@"mode"];
	[animation setType:[self type]];
	[animation setDuration:duration];

	if ([[self type] isEqualToString:@"cube"] || [[self type] isEqualToString:@"oglFlip"])
		 [animation setSubtype:[self stringForDirection:[self direction]]];

	if ([[self type] isEqualToString:@"suckEffect"]) {
		CGSize viewSize = [self frame].size;
		CAFilter *suckFilter = [CAFilter filterWithName:@"suckEffect"];

		CGPoint suckPoint = ([[DCSettings sharedSettings] suckPointForMode:[self mode]] == 0)
							 ? [self homeButtonPointForInterfaceOrientation:[[UIApplication sharedApplication] activeInterfaceOrientation]]
							 : CGPointMake(viewSize.width / 2, viewSize.height / 2);

		[suckFilter setValue:[NSValue valueWithCGPoint:suckPoint] forKey:@"inputPosition"];		   
		[animation setFilter:suckFilter];
	}

	[[self toView] setHidden:NO];
	[[self layer] addAnimation:animation forKey:nil];
}

- (void)dealloc
{
	[_type release];
	
	[super dealloc];
}

- (NSString *)stringForDirection:(DCTransitionDirection)direction
{
	switch (direction) {
		case DCTransitionDirectionLeft:
			return @"fromRight";
		case DCTransitionDirectionRight:
			return @"fromLeft";
		case DCTransitionDirectionUp:
			return @"fromTop";
		case DCTransitionDirectionDown:
			return @"fromBottom";
		default:
			return @"fromLeft";
	}
}

- (CGPoint)homeButtonPointForInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
	CGSize viewSize = [self frame].size;	

	switch (interfaceOrientation) {
		case UIInterfaceOrientationPortrait:
			return CGPointMake(viewSize.width / 2, viewSize.height);
		case UIInterfaceOrientationPortraitUpsideDown:
			return CGPointMake(viewSize.width / 2, 0);
		case UIInterfaceOrientationLandscapeLeft:
			return CGPointMake(0, viewSize.height / 2);
		case UIInterfaceOrientationLandscapeRight:
			return CGPointMake(viewSize.width, viewSize.height / 2);
		default:
			return CGPointZero;
	}
}

@end