Signal-iOS/SignalUI/Views/OWSSearchBar.m
2021-10-19 09:39:53 -03:00

156 lines
4.5 KiB
Objective-C

//
// Copyright (c) 2021 Open Whisper Systems. All rights reserved.
//
#import "OWSSearchBar.h"
#import "Theme.h"
#import "UIView+SignalUI.h"
#import <SignalUI/SignalUI-Swift.h>
NS_ASSUME_NONNULL_BEGIN
@interface OWSSearchBar ()
@property (nonatomic) OWSSearchBarStyle currentStyle;
@end
@implementation OWSSearchBar
@synthesize searchFieldBackgroundColorOverride = _searchFieldBackgroundColorOverride;
- (instancetype)init
{
if (self = [super init]) {
[self ows_configure];
}
return self;
}
- (instancetype)initWithFrame:(CGRect)frame
{
if (self = [super initWithFrame:frame]) {
[self ows_configure];
}
return self;
}
- (nullable instancetype)initWithCoder:(NSCoder *)aDecoder
{
if (self = [super initWithCoder:aDecoder]) {
[self ows_configure];
}
return self;
}
- (void)ows_configure
{
_currentStyle = OWSSearchBarStyle_Default;
[self ows_applyTheme];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(themeDidChange:)
name:ThemeDidChangeNotification
object:nil];
}
- (void)dealloc
{
[[NSNotificationCenter defaultCenter] removeObserver:self];
}
- (void)ows_applyTheme
{
[self.class applyThemeToSearchBar:self style:self.currentStyle];
}
+ (void)applyThemeToSearchBar:(UISearchBar *)searchBar
{
[self applyThemeToSearchBar:searchBar style:OWSSearchBarStyle_Default];
}
+ (void)applyThemeToSearchBar:(UISearchBar *)searchBar style:(OWSSearchBarStyle)style
{
OWSAssertIsOnMainThread();
UIColor *foregroundColor = Theme.secondaryTextAndIconColor;
searchBar.tintColor = Theme.secondaryTextAndIconColor;
searchBar.barStyle = Theme.barStyle;
searchBar.barTintColor = Theme.backgroundColor;
// Hide searchBar border.
// Alternatively we could hide the border by using `UISearchBarStyleMinimal`, but that causes an issue when toggling
// from light -> dark -> light theme wherein the textField background color appears darker than it should
// (regardless of our re-setting textfield.backgroundColor below).
searchBar.backgroundImage = [UIImage new];
if (Theme.isDarkThemeEnabled) {
UIImage *clearImage = [UIImage imageNamed:@"searchbar_clear"];
[searchBar setImage:[clearImage asTintedImageWithColor:foregroundColor]
forSearchBarIcon:UISearchBarIconClear
state:UIControlStateNormal];
UIImage *searchImage = [UIImage imageNamed:@"searchbar_search"];
[searchBar setImage:[searchImage asTintedImageWithColor:foregroundColor]
forSearchBarIcon:UISearchBarIconSearch
state:UIControlStateNormal];
} else {
[searchBar setImage:nil forSearchBarIcon:UISearchBarIconClear state:UIControlStateNormal];
[searchBar setImage:nil forSearchBarIcon:UISearchBarIconSearch state:UIControlStateNormal];
}
UIColor *searchFieldBackgroundColor = Theme.searchFieldBackgroundColor;
if (style == OWSSearchBarStyle_SecondaryBar) {
searchFieldBackgroundColor = Theme.isDarkThemeEnabled ? UIColor.ows_gray95Color : UIColor.ows_gray05Color;
} else if ([searchBar isKindOfClass:[OWSSearchBar class]]
&& ((OWSSearchBar *)searchBar).searchFieldBackgroundColorOverride) {
searchFieldBackgroundColor = ((OWSSearchBar *)searchBar).searchFieldBackgroundColorOverride;
}
[searchBar traverseViewHierarchyDownwardWithVisitor:^(UIView *view) {
if ([view isKindOfClass:[UITextField class]]) {
UITextField *textField = (UITextField *)view;
textField.backgroundColor = searchFieldBackgroundColor;
textField.textColor = Theme.primaryTextColor;
textField.keyboardAppearance = Theme.keyboardAppearance;
}
}];
}
- (void)switchToStyle:(OWSSearchBarStyle)style
{
self.currentStyle = style;
[self ows_applyTheme];
}
- (void)themeDidChange:(NSNotification *)notification
{
OWSAssertIsOnMainThread();
[self ows_applyTheme];
}
- (void)setSearchFieldBackgroundColorOverride:(nullable UIColor *)searchFieldBackgroundColorOverride
{
OWSAssertIsOnMainThread();
_searchFieldBackgroundColorOverride = searchFieldBackgroundColorOverride;
[self ows_applyTheme];
}
- (nullable UIColor *)searchFieldBackgroundColorOverride
{
OWSAssertIsOnMainThread();
return _searchFieldBackgroundColorOverride;
}
@end
NS_ASSUME_NONNULL_END