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MDCScrollBarViewController.m
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//
// Copyright (c) 2013 modocache
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
#import "MDCScrollBarViewController.h"
static CGFloat const kMDCScrollBarViewControllerDefaultFadeDelay = 1.0f;
@implementation MDCScrollBarViewController
#pragma mark - Object Lifecycle
- (id)init
{
self = [super init];
if (self) {
_scrollBarFadeDelay = kMDCScrollBarViewControllerDefaultFadeDelay;
}
return self;
}
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
_scrollBarFadeDelay = kMDCScrollBarViewControllerDefaultFadeDelay;
}
return self;
}
- (id)initWithCoder:(NSCoder *)aDecoder {
self = [super initWithCoder:aDecoder];
if (self) {
_scrollBarFadeDelay = kMDCScrollBarViewControllerDefaultFadeDelay;
}
return self;
}
#pragma mark - UIViewController Overrides
- (void)viewDidUnload
{
self.scrollBarLabel.scrollView = nil;
self.scrollBarLabel = nil;
[super viewDidUnload];
}
#pragma mark - UIScrollViewDelegate Protocol Methods
- (void)scrollViewDidScroll:(UIScrollView *)scrollView {
[self.scrollBarLabel adjustPositionForScrollView:scrollView];
[self.scrollBarLabel setDisplayed:YES animated:YES afterDelay:0.0f];
}
- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView {
[self.scrollBarLabel setDisplayed:NO animated:YES afterDelay:self.scrollBarFadeDelay];
}
- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate {
if (!decelerate) {
[self.scrollBarLabel setDisplayed:NO animated:YES afterDelay:self.scrollBarFadeDelay];
}
}
- (void)scrollViewDidEndScrollingAnimation:(UIScrollView *)scrollView {
[self.scrollBarLabel setDisplayed:NO animated:YES afterDelay:self.scrollBarFadeDelay];
}
- (void)scrollViewDidScrollToTop:(UIScrollView *)scrollView {
[self.scrollBarLabel setDisplayed:NO animated:YES afterDelay:self.scrollBarFadeDelay];
}
@end