Frederik Handberg
@frederikhandberg.com
🇩🇰 23. Studying for a degree in Software Engineering, while working as a Freelance News Photographer. I'm also learning to sew garments...
December 22, 2025 at 11:13 PM
I finished drafting my t-shirt pattern in CLO3D and got it printed.
Now I need to trace it onto real pattern paper.
Now I need to trace it onto real pattern paper.
December 12, 2025 at 12:17 AM
I finished drafting my t-shirt pattern in CLO3D and got it printed.
Now I need to trace it onto real pattern paper.
Now I need to trace it onto real pattern paper.
In the video, the red borders show the boundaries of each text view. Notice how I'm able to move between them seamlessly, as if it were one continuous editor.
December 8, 2025 at 8:55 PM
In the video, the red borders show the boundaries of each text view. Notice how I'm able to move between them seamlessly, as if it were one continuous editor.
My solution lets the user move the caret smoothly between text views just by using the arrow keys. On top of that, the implementation also supports making text selections across text views.
The user can even copy text from a selection that spans multiple text views.
The user can even copy text from a selection that spans multiple text views.
December 8, 2025 at 8:55 PM
My solution lets the user move the caret smoothly between text views just by using the arrow keys. On top of that, the implementation also supports making text selections across text views.
The user can even copy text from a selection that spans multiple text views.
The user can even copy text from a selection that spans multiple text views.
The problem is that by default #macOS doesn't natively support caret navigation or text selection across multiple text views. This would be a big problem for the user experience in my app, so I had to build a solution!
December 8, 2025 at 8:55 PM
The problem is that by default #macOS doesn't natively support caret navigation or text selection across multiple text views. This would be a big problem for the user experience in my app, so I had to build a solution!
For the past month or two, I've been working on some pretty complex logic to support caret navigation and text selections across multiple sequential `NSTextView`s in #AppKit.
I need this functionality for my block-based notes app, where each block lives inside its own text view. #dev
I need this functionality for my block-based notes app, where each block lives inside its own text view. #dev
December 8, 2025 at 8:55 PM
Luckily, I figured out a solution based on `INDSequentialTextSelectionManager`.
GitHub repository:
github.com/indragiek/IN...
GitHub repository:
github.com/indragiek/IN...
GitHub - indragiek/INDSequentialTextSelectionManager: Sequential text selection for NSTextViews
Sequential text selection for NSTextViews. Contribute to indragiek/INDSequentialTextSelectionManager development by creating an account on GitHub.
github.com
November 26, 2025 at 2:34 PM
Luckily, I figured out a solution based on `INDSequentialTextSelectionManager`.
GitHub repository:
github.com/indragiek/IN...
GitHub repository:
github.com/indragiek/IN...
An example of this is text selection:
The problem with having separate and independent text views is that selecting text across multiple `NSTextView`s is not natively supported.
The problem with having separate and independent text views is that selecting text across multiple `NSTextView`s is not natively supported.
November 26, 2025 at 2:34 PM
An example of this is text selection:
The problem with having separate and independent text views is that selecting text across multiple `NSTextView`s is not natively supported.
The problem with having separate and independent text views is that selecting text across multiple `NSTextView`s is not natively supported.
Though, I’m not saying that having separate text views is solving all problems, because it does indeed create its own set of problems that must be fixed to ensure a good user experience.
November 26, 2025 at 2:34 PM
Though, I’m not saying that having separate text views is solving all problems, because it does indeed create its own set of problems that must be fixed to ensure a good user experience.
I have tried to combine all block types in a single `NSTextView`, but it gets problematic converting the JSON structure to `NSMutableAttributedString` because the ranges gets screwed up very easily.
November 26, 2025 at 2:32 PM
I have tried to combine all block types in a single `NSTextView`, but it gets problematic converting the JSON structure to `NSMutableAttributedString` because the ranges gets screwed up very easily.
I’m building a block-based notes app.
My idea was to have a separate text view for each block type.
For example, a heading block would have its own text view.
Likewise, a normal paragraph block would also have its own text view.
My idea was to have a separate text view for each block type.
For example, a heading block would have its own text view.
Likewise, a normal paragraph block would also have its own text view.
November 26, 2025 at 2:32 PM
I’m building a block-based notes app.
My idea was to have a separate text view for each block type.
For example, a heading block would have its own text view.
Likewise, a normal paragraph block would also have its own text view.
My idea was to have a separate text view for each block type.
For example, a heading block would have its own text view.
Likewise, a normal paragraph block would also have its own text view.
This article has been really helpful for me to learn how `NSTextView` works:
danielsaidi.com/blog/2022/06...
If you're new to #AppKit and need to build something that requires using text views, I'd recommend giving it a read.
danielsaidi.com/blog/2022/06...
If you're new to #AppKit and need to build something that requires using text views, I'd recommend giving it a read.
Building a rich text editor for UIKit, AppKit and SwiftUI
In this article, we’ll look at how to extend the rich text support in UIKit, AppKit & SwiftUI by extending native types, adding new t...
danielsaidi.com
November 22, 2025 at 9:04 PM
This article has been really helpful for me to learn how `NSTextView` works:
danielsaidi.com/blog/2022/06...
If you're new to #AppKit and need to build something that requires using text views, I'd recommend giving it a read.
danielsaidi.com/blog/2022/06...
If you're new to #AppKit and need to build something that requires using text views, I'd recommend giving it a read.
I love that #programming is all about problem solving. That’s what makes it so fun. At the same time, it can also be a disadvantage. Sometimes, I’ll run into a bug and spend days trying to solve it. This can be super frustrating 😫 But then it finally works, and the adrenaline kick feels amazing 🚀
November 22, 2025 at 8:47 PM
I love that #programming is all about problem solving. That’s what makes it so fun. At the same time, it can also be a disadvantage. Sometimes, I’ll run into a bug and spend days trying to solve it. This can be super frustrating 😫 But then it finally works, and the adrenaline kick feels amazing 🚀
However, now I just found a #GitHub repository that might be a solution:
github.com/indragiek/IN...
It's old and uses Objective-C, but Sonnet 4.5 should be able to help port it to Swift.
github.com/indragiek/IN...
It's old and uses Objective-C, but Sonnet 4.5 should be able to help port it to Swift.
GitHub - indragiek/INDSequentialTextSelectionManager: Sequential text selection for NSTextViews
Sequential text selection for NSTextViews. Contribute to indragiek/INDSequentialTextSelectionManager development by creating an account on GitHub.
github.com
November 22, 2025 at 8:46 PM
However, now I just found a #GitHub repository that might be a solution:
github.com/indragiek/IN...
It's old and uses Objective-C, but Sonnet 4.5 should be able to help port it to Swift.
github.com/indragiek/IN...
It's old and uses Objective-C, but Sonnet 4.5 should be able to help port it to Swift.
This led me to implement a different solution where I used a single `NSTextView` for all blocks rather than separate.
November 22, 2025 at 8:46 PM
This led me to implement a different solution where I used a single `NSTextView` for all blocks rather than separate.
My previous approach for the editing experience in my notes app was using multiple independent `NSTextView`'s.
This caused a problem where I was unable to perform text selection across multiple blocks, since the blocks were in separate `NSTextView`'s.
This caused a problem where I was unable to perform text selection across multiple blocks, since the blocks were in separate `NSTextView`'s.
A massive challenge for a #programmer like myself without years of experience is that I don’t really know how things are done. #dev
November 22, 2025 at 8:46 PM
My previous approach for the editing experience in my notes app was using multiple independent `NSTextView`'s.
This caused a problem where I was unable to perform text selection across multiple blocks, since the blocks were in separate `NSTextView`'s.
This caused a problem where I was unable to perform text selection across multiple blocks, since the blocks were in separate `NSTextView`'s.
This is obviously part of learning, but it still sucks when you think what you just made is really good, and then it turns out it has massive flaws because you just didn’t know any better 😅
November 20, 2025 at 4:20 PM
This is obviously part of learning, but it still sucks when you think what you just made is really good, and then it turns out it has massive flaws because you just didn’t know any better 😅
For example, with the notes app I’m building, I’m making so many assumptions about how things should be done. And I’ve had to redo implementations again and again because I realized my approach was bad.
November 20, 2025 at 4:20 PM
For example, with the notes app I’m building, I’m making so many assumptions about how things should be done. And I’ve had to redo implementations again and again because I realized my approach was bad.
A massive challenge for a #programmer like myself without years of experience is that I don’t really know how things are done. #dev
November 20, 2025 at 4:20 PM
A massive challenge for a #programmer like myself without years of experience is that I don’t really know how things are done. #dev
**Hover effect bug:** There's also a problem with the text selection cursor showing even when I'm hovering over an image - it should change to the pointer cursor. It does actually change very briefly, but then changes back to text selection cursor again.
November 15, 2025 at 4:42 PM
**Hover effect bug:** There's also a problem with the text selection cursor showing even when I'm hovering over an image - it should change to the pointer cursor. It does actually change very briefly, but then changes back to text selection cursor again.
**Re-rendering bug**: You'll notice in the video, that the images are showing the loading indicator very briefly whenever I hover over the heading blocks. This will be my next task to fix.
November 15, 2025 at 4:42 PM
**Re-rendering bug**: You'll notice in the video, that the images are showing the loading indicator very briefly whenever I hover over the heading blocks. This will be my next task to fix.
My biggest problem was getting the size of the images to work. They seemed to be limited to the line height, which meant, the images couldn’t grow more in height than 32pts.
November 15, 2025 at 4:42 PM
My biggest problem was getting the size of the images to work. They seemed to be limited to the line height, which meant, the images couldn’t grow more in height than 32pts.
The migration to the new `TextKit2` went fairly smooth, but getting the images to show correctly inside the `NSTextView` was quite the challenge 😅
November 15, 2025 at 4:42 PM
The migration to the new `TextKit2` went fairly smooth, but getting the images to show correctly inside the `NSTextView` was quite the challenge 😅
However, by using this new API, I had to migrate from `TextKit1` to the newer version `TextKit2`.
November 15, 2025 at 4:42 PM
However, by using this new API, I had to migrate from `TextKit1` to the newer version `TextKit2`.