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//
// SDLLockScreenViewController.m
// SmartDeviceLink-iOS
//
// Created by Joel Fischer on 10/7/15.
// Copyright © 2015 smartdevicelink. All rights reserved.
//
#import "SDLLockScreenViewController.h"
#import "NSBundle+SDLBundle.h"
NS_ASSUME_NONNULL_BEGIN
@interface SDLLockScreenViewController ()
@property (weak, nonatomic) IBOutlet UIImageView *primaryAppIconImageView;
@property (weak, nonatomic) IBOutlet UIImageView *primaryVehicleIconImageView;
@property (weak, nonatomic) IBOutlet UIImageView *sdlIconImageView;
@property (weak, nonatomic) IBOutlet UIImageView *backupImageView;
@property (weak, nonatomic) IBOutlet UILabel *lockedLabel;
@property (weak, nonatomic) IBOutlet UIImageView *arrowUpImageView;
@property (weak, nonatomic) IBOutlet UIImageView *arrowDownImageView;
@end
@implementation SDLLockScreenViewController
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
[self sdl_layoutViews];
}
- (BOOL)shouldAutorotate {
return NO;
}
- (UIStatusBarStyle)preferredStatusBarStyle {
BOOL useWhiteIcon = [self.class shouldUseWhiteForegroundForBackgroundColor:self.backgroundColor];
return useWhiteIcon ? UIStatusBarStyleLightContent : UIStatusBarStyleDefault;
}
#pragma mark - Setters
- (void)setAppIcon:(UIImage *_Nullable)appIcon {
_appIcon = appIcon;
[self sdl_layoutViews];
}
- (void)setVehicleIcon:(UIImage *_Nullable)vehicleIcon {
_vehicleIcon = vehicleIcon;
[self sdl_layoutViews];
}
- (void)setBackgroundColor:(UIColor *_Nullable)backgroundColor {
_backgroundColor = backgroundColor;
self.view.backgroundColor = _backgroundColor;
[self sdl_layoutViews];
}
#pragma mark - Layout
- (void)sdl_layoutViews {
BOOL useWhiteIcon = [self.class shouldUseWhiteForegroundForBackgroundColor:self.backgroundColor];
UIImage *sdlLogo = [self.class sdl_logoImageWithColor:useWhiteIcon];
self.sdlIconImageView.image = sdlLogo;
self.arrowUpImageView.image = [self.class sdl_arrowUpImageWithColor:useWhiteIcon];
self.arrowDownImageView.image = [self.class sdl_arrowDownImageWithColor:useWhiteIcon];
self.lockedLabel.textColor = useWhiteIcon ? [UIColor whiteColor] : [UIColor blackColor];
if (self.vehicleIcon != nil && self.appIcon != nil) {
[self sdl_setVehicleAndAppIconsLayout];
} else if (self.vehicleIcon != nil) {
[self sdl_setVehicleIconOnlyLayout];
} else if (self.appIcon != nil) {
[self sdl_setAppIconOnlyLayout];
} else {
[self sdl_setNoIconsLayout];
}
[self.view layoutIfNeeded];
}
- (void)sdl_setVehicleAndAppIconsLayout {
self.primaryAppIconImageView.image = self.appIcon;
self.primaryVehicleIconImageView.image = self.vehicleIcon;
self.backupImageView.image = nil;
self.arrowUpImageView.alpha = 1.0;
self.arrowDownImageView.alpha = 1.0;
self.sdlIconImageView.alpha = 1.0;
}
- (void)sdl_setAppIconOnlyLayout {
self.primaryAppIconImageView.image = nil;
self.primaryVehicleIconImageView.image = nil;
self.backupImageView.image = self.appIcon;
self.arrowUpImageView.alpha = 0.0;
self.arrowDownImageView.alpha = 0.0;
self.sdlIconImageView.alpha = 1.0;
}
- (void)sdl_setVehicleIconOnlyLayout {
self.primaryAppIconImageView.image = nil;
self.primaryVehicleIconImageView.image = nil;
self.backupImageView.image = self.vehicleIcon;
self.arrowUpImageView.alpha = 0.0;
self.arrowDownImageView.alpha = 0.0;
self.sdlIconImageView.alpha = 1.0;
}
- (void)sdl_setNoIconsLayout {
self.primaryAppIconImageView.image = nil;
self.primaryVehicleIconImageView.image = nil;
self.backupImageView.image = self.sdlIconImageView.image;
self.arrowUpImageView.alpha = 0.0;
self.arrowDownImageView.alpha = 0.0;
self.sdlIconImageView.alpha = 0.0;
}
#pragma mark - Private Image
// TODO: (Joel F.)[2016-08-22] When moved to iOS 7+, use `imageWithRenderingMode:`
+ (UIImage *)sdl_logoImageWithColor:(BOOL)white {
return [self sdl_imageWithName:[NSString stringWithFormat:@"sdl_logo_%@", white ? @"white" : @"black"]];
}
+ (UIImage *)sdl_arrowUpImageWithColor:(BOOL)white {
return [self sdl_imageWithName:[NSString stringWithFormat:@"lock_arrow_up_%@", white ? @"white" : @"black"]];
}
+ (UIImage *)sdl_arrowDownImageWithColor:(BOOL)white {
return [self sdl_imageWithName:[NSString stringWithFormat:@"lock_arrow_down_%@", white ? @"white" : @"black"]];
}
+ (UIImage*)sdl_imageWithName:(NSString*)name {
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 80000
return [UIImage imageNamed:name inBundle:[NSBundle sdlBundle] compatibleWithTraitCollection:nil];
#else
NSString* bundlePath = [[NSBundle sdlBundle] bundlePath];
return [UIImage imageNamed:[NSString stringWithFormat:@"%@/%@", bundlePath, name]];
#endif
}
+ (BOOL)shouldUseWhiteForegroundForBackgroundColor:(UIColor *)backgroundColor {
CGFloat red, green, blue;
[backgroundColor getRed:&red green:&green blue:&blue alpha:nil];
// http://stackoverflow.com/a/3943023
red = (red <= 0.3928) ? (red / 12.92) : pow(((red + 0.055) / 1.055), 2.4);
green = (green <= 0.3928) ? (green / 12.92) : pow(((green + 0.055) / 1.055), 2.4);
blue = (blue <= 0.3928) ? (blue / 12.92) : pow(((blue + 0.055) / 1.055), 2.4);
CGFloat luminescence = 0.2126 * red + 0.7152 * green + 0.0722 * blue;
return (luminescence <= 0.179);
}
@end
NS_ASSUME_NONNULL_END
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