├── .github ├── CODE_OF_CONDUCT.md └── workflows │ ├── ci.yml │ └── format.yml ├── .gitignore ├── .swift-version ├── .swiftpm └── xcode │ └── package.xcworkspace │ ├── contents.xcworkspacedata │ └── xcshareddata │ └── IDEWorkspaceChecks.plist ├── LICENSE ├── Makefile ├── Package.resolved ├── Package.swift ├── README.md ├── Sources └── AttributedText │ ├── AttributedText.swift │ ├── AttributedTextImpl+iOS.swift │ ├── AttributedTextImpl+macOS.swift │ ├── AttributedTextImpl+tvOS.swift │ ├── AttributedTextImpl.swift │ ├── NSLineBreakMode+TruncationMode.swift │ └── TextSizeViewModel.swift ├── Tests └── AttributedTextTests │ ├── AttributedTextTests.swift │ └── __Snapshots__ │ └── AttributedTextTests │ ├── testHeight.iOS.png │ ├── testHeight.tvOS.png │ ├── testLineLimit.iOS.png │ ├── testLineLimit.tvOS.png │ ├── testTruncationMode.iOS.png │ └── testTruncationMode.tvOS.png └── iOS_screenshot.png /.github/CODE_OF_CONDUCT.md: -------------------------------------------------------------------------------- 1 | # Contributor Covenant Code of Conduct 2 | 3 | ## Our Pledge 4 | 5 | We as members, contributors, and leaders pledge to make participation in our 6 | community a harassment-free experience for everyone, regardless of age, body 7 | size, visible or invisible disability, ethnicity, sex characteristics, gender 8 | identity and expression, level of experience, education, socio-economic status, 9 | nationality, personal appearance, race, religion, or sexual identity 10 | and orientation. 11 | 12 | We pledge to act and interact in ways that contribute to an open, welcoming, 13 | diverse, inclusive, and healthy community. 14 | 15 | ## Our Standards 16 | 17 | Examples of behavior that contributes to a positive environment for our 18 | community include: 19 | 20 | * Demonstrating empathy and kindness toward other people 21 | * Being respectful of differing opinions, viewpoints, and experiences 22 | * Giving and gracefully accepting constructive feedback 23 | * Accepting responsibility and apologizing to those affected by our mistakes, 24 | and learning from the experience 25 | * Focusing on what is best not just for us as individuals, but for the 26 | overall community 27 | 28 | Examples of unacceptable behavior include: 29 | 30 | * The use of sexualized language or imagery, and sexual attention or 31 | advances of any kind 32 | * Trolling, insulting or derogatory comments, and personal or political attacks 33 | * Public or private harassment 34 | * Publishing others' private information, such as a physical or email 35 | address, without their explicit permission 36 | * Other conduct which could reasonably be considered inappropriate in a 37 | professional setting 38 | 39 | ## Enforcement Responsibilities 40 | 41 | Community leaders are responsible for clarifying and enforcing our standards of 42 | acceptable behavior and will take appropriate and fair corrective action in 43 | response to any behavior that they deem inappropriate, threatening, offensive, 44 | or harmful. 45 | 46 | Community leaders have the right and responsibility to remove, edit, or reject 47 | comments, commits, code, wiki edits, issues, and other contributions that are 48 | not aligned to this Code of Conduct, and will communicate reasons for moderation 49 | decisions when appropriate. 50 | 51 | ## Scope 52 | 53 | This Code of Conduct applies within all community spaces, and also applies when 54 | an individual is officially representing the community in public spaces. 55 | Examples of representing our community include using an official e-mail address, 56 | posting via an official social media account, or acting as an appointed 57 | representative at an online or offline event. 58 | 59 | ## Enforcement 60 | 61 | Instances of abusive, harassing, or otherwise unacceptable behavior may be 62 | reported to the community leaders responsible for enforcement at 63 | [INSERT CONTACT METHOD]. 64 | All complaints will be reviewed and investigated promptly and fairly. 65 | 66 | All community leaders are obligated to respect the privacy and security of the 67 | reporter of any incident. 68 | 69 | ## Enforcement Guidelines 70 | 71 | Community leaders will follow these Community Impact Guidelines in determining 72 | the consequences for any action they deem in violation of this Code of Conduct: 73 | 74 | ### 1. Correction 75 | 76 | **Community Impact**: Use of inappropriate language or other behavior deemed 77 | unprofessional or unwelcome in the community. 78 | 79 | **Consequence**: A private, written warning from community leaders, providing 80 | clarity around the nature of the violation and an explanation of why the 81 | behavior was inappropriate. A public apology may be requested. 82 | 83 | ### 2. Warning 84 | 85 | **Community Impact**: A violation through a single incident or series 86 | of actions. 87 | 88 | **Consequence**: A warning with consequences for continued behavior. No 89 | interaction with the people involved, including unsolicited interaction with 90 | those enforcing the Code of Conduct, for a specified period of time. This 91 | includes avoiding interactions in community spaces as well as external channels 92 | like social media. Violating these terms may lead to a temporary or 93 | permanent ban. 94 | 95 | ### 3. Temporary Ban 96 | 97 | **Community Impact**: A serious violation of community standards, including 98 | sustained inappropriate behavior. 99 | 100 | **Consequence**: A temporary ban from any sort of interaction or public 101 | communication with the community for a specified period of time. No public or 102 | private interaction with the people involved, including unsolicited interaction 103 | with those enforcing the Code of Conduct, is allowed during this period. 104 | Violating these terms may lead to a permanent ban. 105 | 106 | ### 4. Permanent Ban 107 | 108 | **Community Impact**: Demonstrating a pattern of violation of community 109 | standards, including sustained inappropriate behavior, harassment of an 110 | individual, or aggression toward or disparagement of classes of individuals. 111 | 112 | **Consequence**: A permanent ban from any sort of public interaction within 113 | the community. 114 | 115 | ## Attribution 116 | 117 | This Code of Conduct is adapted from the [Contributor Covenant][homepage], 118 | version 2.0, available at 119 | https://www.contributor-covenant.org/version/2/0/code_of_conduct.html. 120 | 121 | Community Impact Guidelines were inspired by [Mozilla's code of conduct 122 | enforcement ladder](https://github.com/mozilla/diversity). 123 | 124 | [homepage]: https://www.contributor-covenant.org 125 | 126 | For answers to common questions about this code of conduct, see the FAQ at 127 | https://www.contributor-covenant.org/faq. Translations are available at 128 | https://www.contributor-covenant.org/translations. 129 | -------------------------------------------------------------------------------- /.github/workflows/ci.yml: -------------------------------------------------------------------------------- 1 | name: CI 2 | on: 3 | push: 4 | branches: 5 | - main 6 | pull_request: 7 | branches: 8 | - '*' 9 | jobs: 10 | tests: 11 | runs-on: macos-11 12 | steps: 13 | - uses: actions/checkout@v2 14 | - name: Select Xcode 13.2.1 15 | run: sudo xcode-select -s /Applications/Xcode_13.2.1.app 16 | - name: Run tests 17 | run: make test 18 | -------------------------------------------------------------------------------- /.github/workflows/format.yml: -------------------------------------------------------------------------------- 1 | name: Format 2 | on: 3 | push: 4 | branches: 5 | - main 6 | jobs: 7 | format: 8 | name: swift-format 9 | runs-on: macos-10.15 10 | steps: 11 | - uses: actions/checkout@v2 12 | - name: Tap 13 | run: brew tap pointfreeco/formulae 14 | - name: Install 15 | run: brew install Formulae/swift-format@5.3 16 | - name: Format 17 | run: make format 18 | - uses: stefanzweifel/git-auto-commit-action@v4 19 | with: 20 | commit_message: Run swift format 21 | branch: 'main' 22 | env: 23 | GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} 24 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Xcode 2 | # 3 | # gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore 4 | 5 | ## User settings 6 | xcuserdata/ 7 | 8 | ## compatibility with Xcode 8 and earlier (ignoring not required starting Xcode 9) 9 | *.xcscmblueprint 10 | *.xccheckout 11 | 12 | ## compatibility with Xcode 3 and earlier (ignoring not required starting Xcode 4) 13 | build/ 14 | DerivedData/ 15 | *.moved-aside 16 | *.pbxuser 17 | !default.pbxuser 18 | *.mode1v3 19 | !default.mode1v3 20 | *.mode2v3 21 | !default.mode2v3 22 | *.perspectivev3 23 | !default.perspectivev3 24 | 25 | ## Obj-C/Swift specific 26 | *.hmap 27 | 28 | ## App packaging 29 | *.ipa 30 | *.dSYM.zip 31 | *.dSYM 32 | 33 | ## Playgrounds 34 | timeline.xctimeline 35 | playground.xcworkspace 36 | 37 | # Swift Package Manager 38 | # 39 | # Add this line if you want to avoid checking in source code from Swift Package Manager dependencies. 40 | # Packages/ 41 | # Package.pins 42 | # Package.resolved 43 | # *.xcodeproj 44 | # 45 | # Xcode automatically generates this directory with a .xcworkspacedata file and xcuserdata 46 | # hence it is not needed unless you have added a package configuration file to your project 47 | # .swiftpm 48 | 49 | .build/ 50 | 51 | # CocoaPods 52 | # 53 | # We recommend against adding the Pods directory to your .gitignore. However 54 | # you should judge for yourself, the pros and cons are mentioned at: 55 | # https://guides.cocoapods.org/using/using-cocoapods.html#should-i-check-the-pods-directory-into-source-control 56 | # 57 | # Pods/ 58 | # 59 | # Add this line if you want to avoid checking in source code from the Xcode workspace 60 | # *.xcworkspace 61 | 62 | # Carthage 63 | # 64 | # Add this line if you want to avoid checking in source code from Carthage dependencies. 65 | # Carthage/Checkouts 66 | 67 | Carthage/Build/ 68 | 69 | # Accio dependency management 70 | Dependencies/ 71 | .accio/ 72 | 73 | # fastlane 74 | # 75 | # It is recommended to not store the screenshots in the git repo. 76 | # Instead, use fastlane to re-generate the screenshots whenever they are needed. 77 | # For more information about the recommended setup visit: 78 | # https://docs.fastlane.tools/best-practices/source-control/#source-control 79 | 80 | fastlane/report.xml 81 | fastlane/Preview.html 82 | fastlane/screenshots/**/*.png 83 | fastlane/test_output 84 | 85 | # Code Injection 86 | # 87 | # After new code Injection tools there's a generated folder /iOSInjectionProject 88 | # https://github.com/johnno1962/injectionforxcode 89 | 90 | iOSInjectionProject/ 91 | -------------------------------------------------------------------------------- /.swift-version: -------------------------------------------------------------------------------- 1 | 5.3 2 | -------------------------------------------------------------------------------- /.swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /.swiftpm/xcode/package.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | IDEDidComputeMac32BitWarning 6 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | MIT License 2 | 3 | Copyright (c) 2020 Guille Gonzalez 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /Makefile: -------------------------------------------------------------------------------- 1 | test-macos: 2 | xcodebuild \ 3 | -scheme AttributedText \ 4 | -destination platform="macOS" 5 | 6 | test-ios: 7 | xcodebuild test \ 8 | -scheme AttributedText \ 9 | -destination platform="iOS Simulator,name=iPhone 8" 10 | 11 | test-tvos: 12 | xcodebuild test \ 13 | -scheme AttributedText \ 14 | -destination platform="tvOS Simulator,name=Apple TV" 15 | 16 | test: test-macos test-ios test-tvos 17 | 18 | format: 19 | swift format --in-place --recursive . 20 | 21 | .PHONY: format 22 | -------------------------------------------------------------------------------- /Package.resolved: -------------------------------------------------------------------------------- 1 | { 2 | "object": { 3 | "pins": [ 4 | { 5 | "package": "SnapshotTesting", 6 | "repositoryURL": "https://github.com/pointfreeco/swift-snapshot-testing", 7 | "state": { 8 | "branch": null, 9 | "revision": "f8a9c997c3c1dab4e216a8ec9014e23144cbab37", 10 | "version": "1.9.0" 11 | } 12 | } 13 | ] 14 | }, 15 | "version": 1 16 | } 17 | -------------------------------------------------------------------------------- /Package.swift: -------------------------------------------------------------------------------- 1 | // swift-tools-version:5.3 2 | // The swift-tools-version declares the minimum version of Swift required to build this package. 3 | 4 | import PackageDescription 5 | 6 | let package = Package( 7 | name: "AttributedText", 8 | platforms: [ 9 | .macOS(.v11), 10 | .iOS(.v14), 11 | .tvOS(.v14), 12 | ], 13 | products: [ 14 | .library( 15 | name: "AttributedText", 16 | targets: ["AttributedText"] 17 | ) 18 | ], 19 | dependencies: [ 20 | .package( 21 | name: "SnapshotTesting", 22 | url: "https://github.com/pointfreeco/swift-snapshot-testing", 23 | from: "1.9.0" 24 | ) 25 | ], 26 | targets: [ 27 | .target( 28 | name: "AttributedText", 29 | dependencies: [] 30 | ), 31 | .testTarget( 32 | name: "AttributedTextTests", 33 | dependencies: ["AttributedText", "SnapshotTesting"], 34 | exclude: ["__Snapshots__"] 35 | ), 36 | ] 37 | ) 38 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | > **Warning** 2 | > 3 | > **This repo has been archived.** 4 | > 5 | > From macOS 12+ / iOS 15+ / tvOS 15+ / watchOS 8+, you can use `AttributedString` with the SwiftUI `Text` view. 6 | 7 | # AttributedText 8 | [![](https://img.shields.io/endpoint?url=https%3A%2F%2Fswiftpackageindex.com%2Fapi%2Fpackages%2Fgonzalezreal%2FAttributedText%2Fbadge%3Ftype%3Dswift-versions)](https://swiftpackageindex.com/gonzalezreal/AttributedText) 9 | [![](https://img.shields.io/endpoint?url=https%3A%2F%2Fswiftpackageindex.com%2Fapi%2Fpackages%2Fgonzalezreal%2FAttributedText%2Fbadge%3Ftype%3Dplatforms)](https://swiftpackageindex.com/gonzalezreal/AttributedText) 10 | [![Twitter: @gonzalezreal](https://img.shields.io/badge/twitter-@gonzalezreal-blue.svg?style=flat)](https://twitter.com/gonzalezreal) 11 | 12 | AttributedText is a Swift µpackage that provides `NSAttributedString` rendering in SwiftUI by wrapping either an `NSTextView` or a `UITextView` depending on the platform. 13 | 14 | ## Supported Platforms 15 | 16 | * macOS 11.0+ 17 | * iOS 14.0+ 18 | * tvOS 14.0+ 19 | 20 | ## Usage 21 | ```swift 22 | import AttributedText 23 | import SwiftUI 24 | 25 | struct ContentView: View { 26 | var body: some View { 27 | AttributedText { 28 | let result = NSMutableAttributedString( 29 | string: """ 30 | After the Big Bang 31 | A brief summary of time 32 | Life on earth 33 | 10 billion years 34 | You reading this 35 | 13.7 billion years 36 | """ 37 | ) 38 | 39 | result.addAttributes( 40 | [.font: UIFont.preferredFont(forTextStyle: .title1)], 41 | range: NSRange(location: 0, length: 18) 42 | ) 43 | result.addAttributes( 44 | [.link: URL(string: "https://en.wikipedia.org/wiki/Big_Bang")!], 45 | range: NSRange(location: 10, length: 8) 46 | ) 47 | result.addAttributes( 48 | [.font: UIFont.preferredFont(forTextStyle: .body)], 49 | range: NSRange(location: 19, length: 23) 50 | ) 51 | result.addAttributes( 52 | [.font: UIFont.preferredFont(forTextStyle: .title2)], 53 | range: NSRange(location: 43, length: 13) 54 | ) 55 | result.addAttributes( 56 | [.font: UIFont.preferredFont(forTextStyle: .body)], 57 | range: NSRange(location: 57, length: 16) 58 | ) 59 | result.addAttributes( 60 | [.font: UIFont.preferredFont(forTextStyle: .title2)], 61 | range: NSRange(location: 74, length: 16)) 62 | result.addAttributes( 63 | [.font: UIFont.preferredFont(forTextStyle: .body)], 64 | range: NSRange(location: 91, length: 18) 65 | ) 66 | 67 | return result 68 | } 69 | .background(Color.gray.opacity(0.5)) 70 | .accentColor(.purple) 71 | } 72 | } 73 | ``` 74 | 75 | ![iOSScreenshot](iOS_screenshot.png) 76 | 77 | An `AttributedText` view takes all the available width and adjusts its height to fit the contents. 78 | 79 | To change the text alignment or line break mode, you need to add a `.paragraphStyle` attribute to the attributed string. 80 | 81 | ## Installation 82 | You can add AttributedText to an Xcode project by adding it as a package dependency. 83 | 1. From the **File** menu, select **Swift Packages › Add Package Dependency…** 84 | 1. Enter `https://github.com/gonzalezreal/AttributedText` into the package repository URL text field 85 | 1. Link **AttributedText** to your application target 86 | -------------------------------------------------------------------------------- /Sources/AttributedText/AttributedText.swift: -------------------------------------------------------------------------------- 1 | import SwiftUI 2 | 3 | /// A view that displays styled attributed text. 4 | public struct AttributedText: View { 5 | private var textSizeViewModel = TextSizeViewModel() 6 | @State private var textSize: CGSize? 7 | 8 | private let attributedText: NSAttributedString 9 | private let onOpenLink: ((URL) -> Void)? 10 | 11 | /// Creates an attributed text view. 12 | /// - Parameters: 13 | /// - attributedText: An attributed string to display. 14 | /// - onOpenLink: The action to perform when the user opens a link in the text. When not specified, 15 | /// the view opens the links using the `OpenURLAction` from the environment. 16 | public init(_ attributedText: NSAttributedString, onOpenLink: ((URL) -> Void)? = nil) { 17 | self.attributedText = attributedText 18 | self.onOpenLink = onOpenLink 19 | } 20 | 21 | /// Creates an attributed text view. 22 | /// - Parameters: 23 | /// - attributedText: A closure that creates the attributed string to display. 24 | /// - onOpenLink: The action to perform when the user opens a link in the text. When not specified, 25 | /// the view opens the links using the `OpenURLAction` from the environment. 26 | public init(attributedText: () -> NSAttributedString, onOpenLink: ((URL) -> Void)? = nil) { 27 | self.init(attributedText(), onOpenLink: onOpenLink) 28 | } 29 | 30 | public var body: some View { 31 | GeometryReader { geometry in 32 | AttributedTextImpl( 33 | attributedText: attributedText, 34 | maxLayoutWidth: geometry.maxWidth, 35 | textSizeViewModel: textSizeViewModel, 36 | onOpenLink: onOpenLink 37 | ) 38 | } 39 | .frame( 40 | idealWidth: textSize?.width, 41 | idealHeight: textSize?.height 42 | ) 43 | .fixedSize(horizontal: false, vertical: true) 44 | .onReceive(textSizeViewModel.$textSize) { size in 45 | textSize = size 46 | } 47 | } 48 | } 49 | 50 | extension GeometryProxy { 51 | fileprivate var maxWidth: CGFloat { 52 | size.width - safeAreaInsets.leading - safeAreaInsets.trailing 53 | } 54 | } 55 | -------------------------------------------------------------------------------- /Sources/AttributedText/AttributedTextImpl+iOS.swift: -------------------------------------------------------------------------------- 1 | #if os(iOS) 2 | import SwiftUI 3 | 4 | extension AttributedTextImpl: UIViewRepresentable { 5 | func makeUIView(context: Context) -> TextView { 6 | TextView() 7 | } 8 | 9 | func updateUIView(_ uiView: TextView, context: Context) { 10 | uiView.attributedText = attributedText 11 | uiView.maxLayoutWidth = maxLayoutWidth 12 | 13 | uiView.textContainer.maximumNumberOfLines = context.environment.lineLimit ?? 0 14 | uiView.textContainer.lineBreakMode = NSLineBreakMode( 15 | truncationMode: context.environment.truncationMode 16 | ) 17 | uiView.openLink = onOpenLink ?? { context.environment.openURL($0) } 18 | textSizeViewModel.didUpdateTextView(uiView) 19 | } 20 | } 21 | 22 | extension AttributedTextImpl { 23 | final class TextView: UITextView { 24 | var maxLayoutWidth: CGFloat = 0 { 25 | didSet { 26 | guard maxLayoutWidth != oldValue else { return } 27 | invalidateIntrinsicContentSize() 28 | } 29 | } 30 | 31 | var openLink: ((URL) -> Void)? 32 | 33 | override init(frame: CGRect, textContainer: NSTextContainer?) { 34 | super.init(frame: frame, textContainer: textContainer) 35 | 36 | self.backgroundColor = .clear 37 | self.textContainerInset = .zero 38 | self.isEditable = false 39 | self.isSelectable = false 40 | self.isScrollEnabled = false 41 | self.textContainer.lineFragmentPadding = 0 42 | 43 | self.addGestureRecognizer( 44 | UITapGestureRecognizer(target: self, action: #selector(handleTap(sender:))) 45 | ) 46 | } 47 | 48 | required init?(coder: NSCoder) { 49 | fatalError("init(coder:) has not been implemented") 50 | } 51 | 52 | override var intrinsicContentSize: CGSize { 53 | guard maxLayoutWidth > 0 else { 54 | return super.intrinsicContentSize 55 | } 56 | 57 | return sizeThatFits(CGSize(width: maxLayoutWidth, height: .greatestFiniteMagnitude)) 58 | } 59 | 60 | @objc func handleTap(sender: UITapGestureRecognizer) { 61 | guard let url = self.url(at: sender.location(in: self)) else { 62 | return 63 | } 64 | openLink?(url) 65 | } 66 | 67 | private func url(at location: CGPoint) -> URL? { 68 | guard let attributedText = self.attributedText else { return nil } 69 | 70 | let index = indexOfCharacter(at: location) 71 | return attributedText.attribute(.link, at: index, effectiveRange: nil) as? URL 72 | } 73 | 74 | private func indexOfCharacter(at location: CGPoint) -> Int { 75 | let locationInTextContainer = CGPoint( 76 | x: location.x - self.textContainerInset.left, 77 | y: location.y - self.textContainerInset.top 78 | ) 79 | return self.layoutManager.characterIndex( 80 | for: locationInTextContainer, 81 | in: self.textContainer, 82 | fractionOfDistanceBetweenInsertionPoints: nil 83 | ) 84 | } 85 | } 86 | } 87 | #endif 88 | -------------------------------------------------------------------------------- /Sources/AttributedText/AttributedTextImpl+macOS.swift: -------------------------------------------------------------------------------- 1 | #if os(macOS) 2 | import SwiftUI 3 | 4 | extension AttributedTextImpl: NSViewRepresentable { 5 | func makeNSView(context: Context) -> TextView { 6 | let nsView = TextView(frame: .zero) 7 | 8 | nsView.drawsBackground = false 9 | nsView.textContainerInset = .zero 10 | nsView.isEditable = false 11 | nsView.isRichText = false 12 | nsView.textContainer?.lineFragmentPadding = 0 13 | // we are setting the container's width manually 14 | nsView.textContainer?.widthTracksTextView = false 15 | nsView.delegate = context.coordinator 16 | 17 | return nsView 18 | } 19 | 20 | func updateNSView(_ nsView: TextView, context: Context) { 21 | nsView.textStorage?.setAttributedString(attributedText) 22 | nsView.maxLayoutWidth = maxLayoutWidth 23 | 24 | nsView.textContainer?.maximumNumberOfLines = context.environment.lineLimit ?? 0 25 | nsView.textContainer?.lineBreakMode = NSLineBreakMode( 26 | truncationMode: context.environment.truncationMode 27 | ) 28 | context.coordinator.openLink = onOpenLink ?? { context.environment.openURL($0) } 29 | textSizeViewModel.didUpdateTextView(nsView) 30 | } 31 | 32 | func makeCoordinator() -> Coordinator { 33 | Coordinator() 34 | } 35 | } 36 | 37 | extension AttributedTextImpl { 38 | final class TextView: NSTextView { 39 | var maxLayoutWidth: CGFloat { 40 | get { textContainer?.containerSize.width ?? 0 } 41 | set { 42 | guard textContainer?.containerSize.width != newValue else { return } 43 | textContainer?.containerSize.width = newValue 44 | invalidateIntrinsicContentSize() 45 | } 46 | } 47 | 48 | override var intrinsicContentSize: NSSize { 49 | guard maxLayoutWidth > 0, 50 | let textContainer = self.textContainer, 51 | let layoutManager = self.layoutManager 52 | else { 53 | return super.intrinsicContentSize 54 | } 55 | 56 | layoutManager.ensureLayout(for: textContainer) 57 | return layoutManager.usedRect(for: textContainer).size 58 | } 59 | } 60 | 61 | final class Coordinator: NSObject, NSTextViewDelegate { 62 | var openLink: ((URL) -> Void)? 63 | 64 | func textView(_: NSTextView, clickedOnLink link: Any, at _: Int) -> Bool { 65 | guard let openLink = self.openLink, 66 | let url = (link as? URL) ?? (link as? String).flatMap(URL.init(string:)) 67 | else { 68 | return false 69 | } 70 | 71 | openLink(url) 72 | return true 73 | } 74 | } 75 | } 76 | #endif 77 | -------------------------------------------------------------------------------- /Sources/AttributedText/AttributedTextImpl+tvOS.swift: -------------------------------------------------------------------------------- 1 | #if os(tvOS) 2 | import SwiftUI 3 | 4 | extension AttributedTextImpl: UIViewRepresentable { 5 | func makeUIView(context: Context) -> TextView { 6 | let uiView = TextView() 7 | 8 | uiView.backgroundColor = .clear 9 | uiView.textContainerInset = .zero 10 | uiView.isScrollEnabled = false 11 | uiView.textContainer.lineFragmentPadding = 0 12 | uiView.delegate = context.coordinator 13 | 14 | return uiView 15 | } 16 | 17 | func updateUIView(_ uiView: TextView, context: Context) { 18 | uiView.attributedText = attributedText 19 | uiView.maxLayoutWidth = maxLayoutWidth 20 | 21 | uiView.textContainer.maximumNumberOfLines = context.environment.lineLimit ?? 0 22 | uiView.textContainer.lineBreakMode = NSLineBreakMode( 23 | truncationMode: context.environment.truncationMode 24 | ) 25 | context.coordinator.openLink = onOpenLink ?? { context.environment.openURL($0) } 26 | textSizeViewModel.didUpdateTextView(uiView) 27 | } 28 | 29 | func makeCoordinator() -> Coordinator { 30 | Coordinator() 31 | } 32 | } 33 | 34 | extension AttributedTextImpl { 35 | final class TextView: UITextView { 36 | var maxLayoutWidth: CGFloat = 0 { 37 | didSet { 38 | guard maxLayoutWidth != oldValue else { return } 39 | invalidateIntrinsicContentSize() 40 | } 41 | } 42 | 43 | override var intrinsicContentSize: CGSize { 44 | guard maxLayoutWidth > 0 else { 45 | return super.intrinsicContentSize 46 | } 47 | 48 | return sizeThatFits(CGSize(width: maxLayoutWidth, height: .greatestFiniteMagnitude)) 49 | } 50 | } 51 | 52 | final class Coordinator: NSObject, UITextViewDelegate { 53 | var openLink: ((URL) -> Void)? 54 | 55 | func textView( 56 | _: UITextView, 57 | shouldInteractWith URL: URL, 58 | in _: NSRange, 59 | interaction: UITextItemInteraction 60 | ) -> Bool { 61 | guard case .invokeDefaultAction = interaction else { 62 | return false 63 | } 64 | 65 | if let openLink = self.openLink { 66 | openLink(URL) 67 | return false 68 | } else { 69 | return true 70 | } 71 | } 72 | 73 | func textView( 74 | _: UITextView, 75 | shouldInteractWith _: NSTextAttachment, 76 | in _: NSRange, 77 | interaction _: UITextItemInteraction 78 | ) -> Bool { 79 | // Disable text attachment interactions 80 | false 81 | } 82 | } 83 | } 84 | #endif 85 | -------------------------------------------------------------------------------- /Sources/AttributedText/AttributedTextImpl.swift: -------------------------------------------------------------------------------- 1 | import SwiftUI 2 | 3 | struct AttributedTextImpl { 4 | var attributedText: NSAttributedString 5 | var maxLayoutWidth: CGFloat 6 | var textSizeViewModel: TextSizeViewModel 7 | var onOpenLink: ((URL) -> Void)? 8 | } 9 | -------------------------------------------------------------------------------- /Sources/AttributedText/NSLineBreakMode+TruncationMode.swift: -------------------------------------------------------------------------------- 1 | import SwiftUI 2 | 3 | extension NSLineBreakMode { 4 | init(truncationMode: Text.TruncationMode) { 5 | switch truncationMode { 6 | case .head: 7 | self = .byTruncatingHead 8 | case .tail: 9 | self = .byTruncatingTail 10 | case .middle: 11 | self = .byTruncatingMiddle 12 | @unknown default: 13 | self = .byWordWrapping 14 | } 15 | } 16 | } 17 | -------------------------------------------------------------------------------- /Sources/AttributedText/TextSizeViewModel.swift: -------------------------------------------------------------------------------- 1 | import SwiftUI 2 | 3 | final class TextSizeViewModel { 4 | @Published var textSize: CGSize? 5 | 6 | func didUpdateTextView(_ textView: AttributedTextImpl.TextView) { 7 | textSize = textView.intrinsicContentSize 8 | } 9 | } 10 | -------------------------------------------------------------------------------- /Tests/AttributedTextTests/AttributedTextTests.swift: -------------------------------------------------------------------------------- 1 | #if !os(macOS) && !targetEnvironment(macCatalyst) 2 | import SnapshotTesting 3 | import SwiftUI 4 | import XCTest 5 | 6 | import AttributedText 7 | 8 | final class AttributedTextTests: XCTestCase { 9 | struct TestView: View { 10 | var body: some View { 11 | AttributedText { 12 | let result = NSMutableAttributedString( 13 | string: """ 14 | The Adventures of Sherlock Holmes 15 | I had called upon my friend, Mr. Sherlock Holmes, one day in the autumn of last year and found him in deep conversation with a very stout, florid-faced, elderly gentleman with fiery red hair. 16 | """ 17 | ) 18 | 19 | result.addAttributes( 20 | [.font: UIFont.preferredFont(forTextStyle: .title2)], 21 | range: NSRange(location: 0, length: 33) 22 | ) 23 | result.addAttributes( 24 | [.font: UIFont.preferredFont(forTextStyle: .body)], 25 | range: NSRange(location: 33, length: 192) 26 | ) 27 | return result 28 | } 29 | .background(Color.gray.opacity(0.5)) 30 | .padding() 31 | } 32 | } 33 | 34 | private let precision: Float = 0.99 35 | 36 | #if os(iOS) 37 | private let layout = SwiftUISnapshotLayout.device(config: .iPhone8) 38 | private let platformName = "iOS" 39 | #elseif os(tvOS) 40 | private let layout = SwiftUISnapshotLayout.device(config: .tv) 41 | private let platformName = "tvOS" 42 | #endif 43 | 44 | func testHeight() { 45 | let view = TestView() 46 | assertSnapshot( 47 | matching: view, as: .image(precision: precision, layout: layout), named: platformName) 48 | } 49 | 50 | func testLineLimit() { 51 | let view = TestView() 52 | .lineLimit(2) 53 | assertSnapshot( 54 | matching: view, as: .image(precision: precision, layout: layout), named: platformName) 55 | } 56 | 57 | func testTruncationMode() { 58 | let view = TestView() 59 | .lineLimit(2) 60 | .truncationMode(.middle) 61 | assertSnapshot( 62 | matching: view, as: .image(precision: precision, layout: layout), named: platformName) 63 | } 64 | } 65 | #endif 66 | -------------------------------------------------------------------------------- /Tests/AttributedTextTests/__Snapshots__/AttributedTextTests/testHeight.iOS.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/gonzalezreal/AttributedText/039206ea7a698d349b3bd73d78023e0c0fd52841/Tests/AttributedTextTests/__Snapshots__/AttributedTextTests/testHeight.iOS.png -------------------------------------------------------------------------------- /Tests/AttributedTextTests/__Snapshots__/AttributedTextTests/testHeight.tvOS.png: -------------------------------------------------------------------------------- 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