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MasterPassword/platform-darwin/Source/iOS/MPOverlayViewController.m
2017-04-20 22:29:10 -04:00

163 lines
7.1 KiB
Objective-C

//==============================================================================
// This file is part of Master Password.
// Copyright (c) 2011-2017, Maarten Billemont.
//
// Master Password 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.
//
// Master Password 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 can find a copy of the GNU General Public License in the
// LICENSE file. Alternatively, see <http://www.gnu.org/licenses/>.
//==============================================================================
#import "MPOverlayViewController.h"
@implementation MPOverlayViewController {
NSMutableDictionary *_dismissSegueByButton;
}
- (void)awakeFromNib {
[super awakeFromNib];
_dismissSegueByButton = [NSMutableDictionary dictionary];
}
- (void)viewDidLoad {
[super viewDidLoad];
[self performSegueWithIdentifier:@"root" sender:self];
}
- (UIViewController *)childViewControllerForStatusBarStyle {
return [self.childViewControllers lastObject];
}
- (UIViewController *)childViewControllerForStatusBarHidden {
return self.childViewControllerForStatusBarStyle;
}
- (UIStoryboardSegue *)segueForUnwindingToViewController:(UIViewController *)toViewController
fromViewController:(UIViewController *)fromViewController identifier:(NSString *)identifier {
return [[MPOverlaySegue alloc] initWithIdentifier:identifier source:fromViewController destination:toViewController];
}
- (UIView *)addDismissButtonForSegue:(MPOverlaySegue *)segue {
UIButton *dismissButton = [UIButton buttonWithType:UIButtonTypeCustom];
[dismissButton addTarget:self action:@selector( dismissOverlay: ) forControlEvents:UIControlEventTouchUpInside];
dismissButton.backgroundColor = [UIColor colorWithWhite:0 alpha:0.5f];
dismissButton.visible = NO;
dismissButton.frame = self.view.bounds;
dismissButton.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
_dismissSegueByButton[[NSValue valueWithNonretainedObject:dismissButton]] =
[[MPOverlaySegue alloc] initWithIdentifier:@"dismiss-overlay"
source:segue.destinationViewController destination:segue.sourceViewController];
[self.view addSubview:dismissButton];
return dismissButton;
}
- (void)dismissOverlay:(UIButton *)dismissButton {
NSValue *dismissSegueKey = [NSValue valueWithNonretainedObject:dismissButton];
[((UIStoryboardSegue *)_dismissSegueByButton[dismissSegueKey]) perform];
}
- (void)removeDismissButtonForViewController:(UIViewController *)viewController {
UIButton *dismissButton = nil;
for (NSValue *dismissButtonValue in [_dismissSegueByButton allKeys])
if (((UIStoryboardSegue *)_dismissSegueByButton[dismissButtonValue]).sourceViewController == viewController) {
dismissButton = [dismissButtonValue nonretainedObjectValue];
NSAssert( [self.view.subviews containsObject:dismissButton], @"Missing dismiss button in dictionary." );
}
if (!dismissButton)
return;
NSValue *dismissSegueKey = [NSValue valueWithNonretainedObject:dismissButton];
[_dismissSegueByButton removeObjectForKey:dismissSegueKey];
[UIView animateWithDuration:0.1f animations:^{
dismissButton.visible = NO;
} completion:^(BOOL finished) {
[dismissButton removeFromSuperview];
}];
}
@end
@implementation MPOverlaySegue
+ (instancetype)dismissViewController:(UIViewController *)viewController {
return [[self alloc] initWithIdentifier:nil source:viewController destination:viewController];
}
- (void)perform {
UIViewController *sourceViewController = self.sourceViewController;
UIViewController *destinationViewController = self.destinationViewController;
MPOverlayViewController *containerViewController = self.sourceViewController;
while (containerViewController && ![(id)containerViewController isKindOfClass:[MPOverlayViewController class]])
containerViewController = (id)containerViewController.parentViewController;
NSAssert( [containerViewController isKindOfClass:[MPOverlayViewController class]],
@"Not an overlay container: %@", containerViewController );
if (!destinationViewController.parentViewController) {
// Winding
[containerViewController addChildViewController:destinationViewController];
UIView *dismissButton = [containerViewController addDismissButtonForSegue:self];
destinationViewController.view.frame = containerViewController.view.bounds;
destinationViewController.view.translatesAutoresizingMaskIntoConstraints = YES;
destinationViewController.view.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
[containerViewController.view addSubview:destinationViewController.view];
[containerViewController setNeedsStatusBarAppearanceUpdate];
CGRectSetY( destinationViewController.view.frame, 100 );
destinationViewController.view.transform = CGAffineTransformMakeScale( 1.2f, 1.2f );
destinationViewController.view.visible = NO;
[UIView transitionWithView:containerViewController.view duration:0.3f
options:UIViewAnimationOptionAllowAnimatedContent animations:^{
destinationViewController.view.transform = CGAffineTransformIdentity;
CGRectSetY( destinationViewController.view.frame, 0 );
destinationViewController.view.visible = YES;
dismissButton.visible = YES;
} completion:^(BOOL finished) {
[destinationViewController didMoveToParentViewController:containerViewController];
[containerViewController setNeedsStatusBarAppearanceUpdate];
}];
}
else {
// Unwinding
[sourceViewController willMoveToParentViewController:nil];
[UIView transitionWithView:containerViewController.view duration:0.2f
options:UIViewAnimationOptionAllowAnimatedContent animations:^{
CGRectSetY( sourceViewController.view.frame, 100 );
sourceViewController.view.transform = CGAffineTransformMakeScale( 0.8f, 0.8f );
sourceViewController.view.visible = NO;
[containerViewController removeDismissButtonForViewController:sourceViewController];
} completion:^(BOOL finished) {
if (finished) {
[sourceViewController.view removeFromSuperview];
[sourceViewController removeFromParentViewController];
[containerViewController setNeedsStatusBarAppearanceUpdate];
}
}];
}
}
@end