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/* Cydia - iPhone UIKit Front-End for Debian APT
* Copyright (C) 2008-2013 Jay Freeman (saurik)
*/
/* GNU General Public License, Version 3 {{{ */
/*
* Cydia is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published
* by the Free Software Foundation, either version 3 of the License,
* or (at your option) any later version.
*
* Cydia is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Cydia. If not, see <http://www.gnu.org/licenses/>.
**/
/* }}} */
#include "CyteKit/TabBarController.h"
#include "iPhonePrivate.h"
@implementation UITabBarController (Cydia)
@end
@implementation CyteTabBarController
- (void) didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// presenting a UINavigationController on 2.x does not update its transitionView
// it thereby will not allow its topViewController to be unloaded by memory pressure
if (kCFCoreFoundationVersionNumber < kCFCoreFoundationVersionNumber_iPhoneOS_3_0) {
UIViewController *selected([self selectedViewController]);
for (UINavigationController *controller in [self viewControllers])
if (controller != selected)
if (UIViewController *top = [controller topViewController])
[top unloadView];
}
}
- (void) tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController {
if ([self unselectedViewController])
[self setUnselectedViewController:nil];
// presenting a UINavigationController on 2.x does not update its transitionView
// if this view was unloaded, the tranitionView may currently be presenting nothing
if (kCFCoreFoundationVersionNumber < kCFCoreFoundationVersionNumber_iPhoneOS_3_0) {
UINavigationController *navigation((UINavigationController *) viewController);
[navigation pushViewController:[[[UIViewController alloc] init] autorelease] animated:NO];
[navigation popViewControllerAnimated:NO];
}
}
- (void) dismissModalViewControllerAnimated:(BOOL)animated {
if ([self modalViewController] == nil && [self unselectedViewController] != nil)
[self setUnselectedViewController:nil];
else
[super dismissModalViewControllerAnimated:YES];
}
- (void) setUnselectedViewController:(UIViewController *)transient {
if (kCFCoreFoundationVersionNumber < kCFCoreFoundationVersionNumber_iPhoneOS_3_0) {
if (transient != nil) {
[[[self viewControllers] objectAtIndex:0] pushViewController:transient animated:YES];
[self setSelectedIndex:0];
} return;
}
NSMutableArray *controllers = [[[self viewControllers] mutableCopy] autorelease];
if (transient != nil) {
UINavigationController *navigation([[[UINavigationController alloc] init] autorelease]);
[navigation setViewControllers:[NSArray arrayWithObject:transient]];
transient = navigation;
if (transient_ == nil)
remembered_ = [controllers objectAtIndex:0];
transient_ = transient;
[transient_ setTabBarItem:[remembered_ tabBarItem]];
[controllers replaceObjectAtIndex:0 withObject:transient_];
[self setSelectedIndex:0];
[self setViewControllers:controllers];
[self concealTabBarSelection];
} else if (remembered_ != nil) {
[remembered_ setTabBarItem:[transient_ tabBarItem]];
transient_ = transient;
[controllers replaceObjectAtIndex:0 withObject:remembered_];
remembered_ = nil;
[self setViewControllers:controllers];
[self revealTabBarSelection];
}
}
- (UIViewController *) unselectedViewController {
return transient_;
}
- (void) unloadData {
[super unloadData];
for (UINavigationController *controller in [self viewControllers])
[controller unloadData];
if (UIViewController *selected = [self selectedViewController])
[selected reloadData];
if (UIViewController *unselected = [self unselectedViewController]) {
[unselected unloadData];
[unselected reloadData];
}
}
@end
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