-
Notifications
You must be signed in to change notification settings - Fork 100
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Convert NBSMockedApplication from Objc to Swift
- Loading branch information
Showing
5 changed files
with
159 additions
and
192 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file was deleted.
Oops, something went wrong.
This file was deleted.
Oops, something went wrong.
150 changes: 150 additions & 0 deletions
150
Nimble_Snapshots/DynamicType/NBSMockedApplication.swift
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,150 @@ | ||
| import Foundation | ||
| import UIKit | ||
|
|
||
| public class NBSMockedApplication { | ||
|
|
||
| private var isSwizzled: Bool = false | ||
|
|
||
| public init() {} | ||
|
|
||
| deinit { | ||
| stopMockingPreferredContentSizeCategory() | ||
| } | ||
|
|
||
| /* On iOS 9, +[UIFont preferredFontForTextStyle:] uses -[UIApplication preferredContentSizeCategory] | ||
| to get the content size category. However, this changed on iOS 10. While I haven't found what UIFont uses to get | ||
| the current category, swizzling preferredFontForTextStyle: to use +[UIFont preferredFontForTextStyle: compatibleWithTraitCollection:] | ||
| (only available on iOS >= 10), passing an UITraitCollection with the desired contentSizeCategory. | ||
| */ | ||
| public func mockPreferredContentSizeCategory(_ category: UIContentSizeCategory) { | ||
|
|
||
| UIApplication.shared.nbs_preferredContentSizeCategory = category | ||
|
|
||
| if !isSwizzled { | ||
| UIApplication.nbs_swizzle() | ||
| UIFont.nbs_swizzle() | ||
| UITraitCollection.nbs_swizzle() | ||
| isSwizzled = true | ||
| } | ||
| NotificationCenter.default.post(name: UIContentSizeCategory.didChangeNotification, | ||
| object: UIApplication.shared, | ||
| userInfo: [UIContentSizeCategory.newValueUserInfoKey: category]) | ||
| } | ||
|
|
||
| public func stopMockingPreferredContentSizeCategory() { | ||
| if isSwizzled { | ||
| UIApplication.nbs_swizzle() | ||
| UIFont.nbs_swizzle() | ||
| UITraitCollection.nbs_swizzle() | ||
| isSwizzled = false | ||
| } | ||
| } | ||
| } | ||
|
|
||
| extension UIFont { | ||
|
|
||
| static func nbs_swizzle() { | ||
| if !UITraitCollection.instancesRespond(to: #selector(getter: UIApplication.preferredContentSizeCategory)) { | ||
| return | ||
| } | ||
|
|
||
| let selector = #selector(UIFont.preferredFont(forTextStyle:)) | ||
| let replacedSelector = #selector(nbs_preferredFont(for:)) | ||
|
|
||
| let originalMethod = class_getClassMethod(self, selector) | ||
| let extendedMethod = class_getClassMethod(self, replacedSelector) | ||
| if let originalMethod = originalMethod, let extendedMethod = extendedMethod { | ||
| method_exchangeImplementations(originalMethod, extendedMethod) | ||
| } | ||
| } | ||
|
|
||
| @objc | ||
| static func nbs_preferredFont(for style: UIFont.TextStyle) -> UIFont? { | ||
| let category = UIApplication.shared.preferredContentSizeCategory | ||
|
|
||
| if #available(iOS 10.0, tvOS 10.0, *) { | ||
| let categoryTrait = UITraitCollection(preferredContentSizeCategory: category) | ||
| return UIFont.preferredFont(forTextStyle: style, compatibleWith: categoryTrait) | ||
| } | ||
| return UIFont.preferredFont(forTextStyle: style) | ||
| } | ||
| } | ||
|
|
||
| extension UIApplication { | ||
|
|
||
| struct AssociatedKeys { | ||
| static var contentSizeCategory: UInt8 = 0 | ||
| } | ||
|
|
||
| @objc var nbs_preferredContentSizeCategory: UIContentSizeCategory? { | ||
| get { | ||
| return objc_getAssociatedObject(self, &AssociatedKeys.contentSizeCategory) as? UIContentSizeCategory | ||
| } | ||
| set { | ||
| objc_setAssociatedObject(self, &AssociatedKeys.contentSizeCategory, newValue, .OBJC_ASSOCIATION_COPY_NONATOMIC) | ||
| } | ||
| } | ||
|
|
||
| static func nbs_swizzle() { | ||
| let selector = #selector(getter: UIApplication.preferredContentSizeCategory) | ||
| let replacedSelector = #selector(getter: self.nbs_preferredContentSizeCategory) | ||
|
|
||
| let originalMethod = class_getInstanceMethod(self, selector) | ||
| let extendedMethod = class_getInstanceMethod(self, replacedSelector) | ||
| if let originalMethod = originalMethod, let extendedMethod = extendedMethod { | ||
| method_exchangeImplementations(originalMethod, extendedMethod) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| extension UITraitCollection { | ||
|
|
||
| @objc | ||
| func nbs_preferredContentSizeCategory() -> UIContentSizeCategory { | ||
| return UIApplication.shared.preferredContentSizeCategory | ||
| } | ||
|
|
||
| @objc | ||
| func nbs__changedContentSizeCategory(fromTraitCollection arg: Any?) -> Bool { | ||
| return true | ||
| } | ||
|
|
||
| static func nbs_swizzlePreferredContentSizeCategory() { | ||
| let selector = #selector(getter: UIApplication.preferredContentSizeCategory) | ||
|
|
||
| if !self.instancesRespond(to: selector) { | ||
| return | ||
| } | ||
|
|
||
| let replacedSelector = #selector(getter: UIApplication.nbs_preferredContentSizeCategory) | ||
|
|
||
| let originalMethod = class_getInstanceMethod(self, selector) | ||
| let extendedMethod = class_getInstanceMethod(self, replacedSelector) | ||
|
|
||
| if let originalMethod = originalMethod, let extendedMethod = extendedMethod { | ||
| method_exchangeImplementations(originalMethod, extendedMethod) | ||
| } | ||
| } | ||
|
|
||
| static func nbs_swizzleChangedContentSizeCategoryFromTraitCollection() { | ||
| let selector = sel_registerName("_changedContentSizeCategoryFromTraitCollection:") | ||
|
|
||
| if !self.instancesRespond(to: selector) { | ||
| return | ||
| } | ||
|
|
||
| let replacedSelector = #selector(nbs__changedContentSizeCategory(fromTraitCollection:)) | ||
|
|
||
| let originalMethod = class_getInstanceMethod(self, selector) | ||
| let extendedMethod = class_getInstanceMethod(self, replacedSelector) | ||
|
|
||
| if let originalMethod = originalMethod, let extendedMethod = extendedMethod { | ||
| method_exchangeImplementations(originalMethod, extendedMethod) | ||
| } | ||
| } | ||
|
|
||
| static func nbs_swizzle() { | ||
| nbs_swizzlePreferredContentSizeCategory() | ||
| nbs_swizzleChangedContentSizeCategoryFromTraitCollection() | ||
| } | ||
| } |
Oops, something went wrong.