An NSTextField that specifies a maximum count after which text is highlighted to indicate an overflow
I always liked the Twitter approach for indicating that text was oversized - it allows you to easily curate your content appropriately to fit the available size.
This control uses the concept of a "grapheme cluster" for its character count - this means that emojis/complex characters represent a single character within the string
For example, the string a=🧖🏼♀️, b=💆♂️, c=🙆🏾 represents 13 characters
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| a | = | 🧖🏼♀️ | , | b | = | 💆♂️ | , | c | = | 🙆🏾 |
| Property | Type | Description |
|---|---|---|
maxCharacters | Int | The maximum number of characters allowed |
overflowTextColor | NSColor | The color to use for 'overflow' characters |
overflowTextBackgroundColor | NSColor | The background color to use for 'overflow' characters |
underlineOverflowCharacters | Bool | Whether to underline overflow characters |
These properties are KVO observable.
| Property | Type | Description |
|---|---|---|
isValid | Bool | Does the text fit within the maximum characters specified |
characterCount | Int | Total character count |
charactersAvailable | Int | The number of characters available before overflow occurs |
overflowCharacterCount | Int | The number of overflow characters |
| Parameter | Type | Description |
|---|---|---|
contentChangedCallback | () -> Void | Called when the content changes |
isValidChangedCallback | (Bool) -> Void | Called when the validity changes |
| Parameter | Description |
|---|---|
validityPublisher | Publishes when the validity of the field changes |
Combine Example Usage
@IBOutlet weak vartitleField:DSFMaxLengthDisplayTextField!...
titleField.validityPublisher
.removeDuplicates().sink{ newValue inSwift.print("Title Validity changed: \(newValue)")}MIT License
Copyright (c) 2022 Darren Ford
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