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lyse.isobeef.org

Hurray, I can now press gg instead of g to go to the top in tt. Much better! :-) Other multi-key combinations are also easily possible now.

I should probably write a real article about this at some point, but here we go. The only downside with my new key binding system is that it breaks tview’s established pattern. You’ve got an InputHandler(), that is implemented using WrapInputHandler(…). It typically then directly implements the switching logic depending on the key press. Something like this:

func (w *Widget) InputHandler() func(event *tcell.EventKey, setFocus func(p tview.Primitive)) {
    // WrapInputHandler allows for intercepting key events with SetInputCapture(…)
    // from the outside for customization. This handles the default key bindings.
    return t.WrapInputHandler(func(event *tcell.EventKey, setFocus func(p tview.Primitive)) {
        switch event.Key() {
        case tcell.KeyRune:
            if event.Modifiers() == tcell.ModNone {
                switch event.Rune() {
                case 'k':
                    w.scrollUp()
                    return // we already handled the event, stop processing

                case 'j':
                    w.scrollDown()
                    return
                }
            }
        }

        // We didn't handle the key event. Maybe the parent
        // widget knows what to do with it.
        if handler := w.parent.InputHandler(); handler != nil {
            handler(event, setFocus)
        }
    })
}

From the outside, you can intercept and either stop or continue the widget’s original key handling with a potentially rewritten key event using SetInputCapture(…):

w := NewWidget()
// customized or additional key bindings
w.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
    switch event.Key() {
    case tcell.KeyUp:
        // Rewrite the event, so the "cursor up" key is an alias
        // for the vim key binding "k", that is handled by the
        // wrapped input handler above. (I know, I know, this is a
        // completely unrealistic example, why would anyone use
        // cursor keys when there are vim key bindings available?!)
        return tcell.NewEventKey(tcell.KeyRune, 'k', tcell.ModNone)

    case tcell.KeyRune:
        if event.Modifiers() == tcell.ModNone {
            switch event.Rune() {
                case 'q':
                    app.Stop()
                    // we already handled the event, do not pass it
                    // to the wrapped input handler above
                    return nil

                case 'r':
                    toggleMessageReadStatus()
                    return nil
            }
        }
    }

    // we didn't handle the event, pass it to the wrapped
    // input handler above
    return event
}

Since they all expect a single key, I’ve noticed that using multiple dedicated KeyBindings of mine on these different levels kinda breaks multi-key handling with common prefixes. The outer-most KeyBinding captures the prefix, but it can’t transfer it to the inner one if not handled by the outer one. At least not without some more (potentially ugly) changes. So, I now have to work with just a single KeyBindings object for the entire widget chain (if it consists of multiple other widgets or the regular input handler and input capture are in the game). The outside needs to register all its key bind customizations or extensions at the same level that the original widget handles its default ones. Doable by exposing the widget’s KeyBindings instance, but not pretty. You always have to keep this in mind.

With the KeyBindings, it will look like that:

type Widget struct {
    parent tview.Primitive

    // make it available to children or the outside either by
    // direct field access or by providing a getter method
    KeyBindings *bind.KeyBindings
}

func NewWidget() *Widget {
    w := &Widget{KeyBindings: &bind.KeyBindings{}}
    w.KeyBindings. // default key bindings
        Bind0(bind.KeySequence('k', w.scrollUp).
        Bind0(bind.KeySequence('j', w.scrollDown)
    return w
}

func (w *Widget) InputHandler() InputHandler() func(event *tcell.EventKey, setFocus func(p tview.Primitive)) {
    return t.WrapInputHandler(func(event *tcell.EventKey, setFocus func(p tview.Primitive)) {
        // also note the missing support for focus transfer at the moment
        event = w.KeyBindings.Capture(event)
        if event == nil {
            return
        }

        if handler := w.parent.InputHandler(); handler != nil {
            handler(event, setFocus)
        }
    }
}

And then from the outside, or in a child widget:

w := NewWidget()
w.KeyBindings. // additional or customized key bindings
    Bind1(bind.KeySequence(tcell.KeyUp), func(*tcell.EventKey) *tcell.EventKey {
        return tcell.NewEventKey(tcell.KeyRune, 'k', tcell.ModNone)
    }).
    Bind0(bind.KeySequence('q'), app.Stop).
    Bind0(bind.KeySequence('r'), toggleMessageReadStatus)

When directly working with tview primitives that are not part of custom widget implementations, the following works well so far:

textView := tview.NewTextView().
    SetWordWrap(true).
    SetText("…")
    SetScrollable(true)
textView.SetInputCapture((&bind.KeyBindings{}).
    Bind0(bind.KeySequence('q'), app.Stop).
    Bind1(bind.KeySequence('g', 'g'), func(*tcell.EventKey) *tcell.EventKey {
        return tcell.NewEventKey(tcell.KeyHome, 0, tcell.ModNone)
    }).
    Capture)

I need to sleep on this some more.

Also, writing very long messages like this one is really not all that fun in tt’s editor. I should absolutely provide a way to shell out to vim.

(Took me about one and a half hours to compose, holy crap. But not only because of not using vim. Although, that might have saved me a quarter hour or so for sure. Proof-reading this message also uncovered quite a few bugs in my real documentation. So, that’s a big win!) Good night!

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lyse

lyse.isobeef.org

Sun, Jul 12 4:00AM (3w ago)

↳ In-reply-to » We slept in the forest. It was really great except of my mate's fucking terror dog who was barking and snarling the entire night to each and every sound. I had maybe half an hour of sleep in total. Despite that, it was pleasantly warm. Well, the night, that is. The heat was brutal during the days. Literally streams of sweat were running down on us on the way there in the evening and back in the morning.

@prologic@twtxt.net Well, 15 shows the site. On the left, I had a roll mat on a tarp. I borrowed some “NVA tarps” from the scouts for this trip. The scouts got them from the National People’s Army, the German Democratic Republic’s armed forces after Germany was reunited. They’re 1.75m x 1.75m in size and weigh 1.3kg, quite heavy, but super awesome. One tarp on the bottom, another one to cover up the clothes, shoes and sleeping bag in order to protect against the thaw. Finally, a mosquito net over all that, hung from a rope between two trees.

My mate just used a hammock with a mozzie net on the right hand side. The third tarp served as the luxurious bedside carpet. :-)

We sat on my second tarp to chill and enjoy the sunset and surroundings. It was nice to notice birds etc. die down. It took a really long time for the last light to fade away. Since we have a very high risk of forest fires, we of course couldn’t have a camp fire. But after all the exhaustion, I didn’t even miss it for one second.

Since we had dinner at home before leaving, all we brought were two lye rolls, two grain rolls, two brezels, some sausage and chocolate biscuits for breakfast. From the 2.5l of water, I ended up using 2l. It’s always good to have a little extra, despite the unnecessary weight. We had brekkie a few kilometers further on a bench in the shade. The first bench was already in direct sun.

Our camp site was maybe 30m to the side and a few meters down of a summit path hidden behind some trees and bushes. We were quite lucky, the other side of the hill got quite a bit of a breeze at night. We could hear the leaved treetops making much more noise behind us.

@movq@www.uninformativ.de Yes, these kind of dogs should really be strictly forbidden!

It’s not illegal if you own the forest or ask the owner. :-)

@david@daiwei.me Yeah, no clue. But my mate said the dog is disqualified from such adventures in the future. :-)

The temps were supposed to hit 14°C just before sunrise. Since we didn’t bring a thermometer, I can’t tell for sure. I was rather hot in my sleeping bag, so I had to pull out my arms every now and then. My mate’s sleeping bag was a little lighter and, unfortunately, the zipper jammed up. Since it didn’t close all the way, it felt quite a bit cold I was told in the morning. When we got up at 6ish (we said, we don’t care about time at all), it was probably already 16°C if not more. I brought a jumper, but a t-shirt was already nice enough to wear. The jumper just served as my pillow. The mercury raised by the minute then.

Yeah, I circled the spot with a biro to keep an eye on it. Until now, there’s absolutely nothing to see. Looks like I got lucky.

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lyse

lyse.isobeef.org

Sat, Jul 11 5:15PM (3w ago)

We slept in the forest. It was really great except of my mate’s fucking terror dog who was barking and snarling the entire night to each and every sound. I had maybe half an hour of sleep in total. Despite that, it was pleasantly warm. Well, the night, that is. The heat was brutal during the days. Literally streams of sweat were running down on us on the way there in the evening and back in the morning.

Surprisingly, there weren’t any mozzies around at night, I would have lost all safe bets. On the way there, my mate convinced me to take a shortcut through the taller and taller growing grass. It’s been some time that somebody traveled on this track, so we had to search around a bit for the overgrown path where we could cross the mostly dried up creek. In the beginning I said that this will be a bad idea. Lo and behold, I discovered a tick on my inner upper leg the next morning. Luckily, I got it out with my tick hook on the first attempt.

https://lyse.isobeef.org/walduebernachtung-2026-07-09-10/

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lyse

lyse.isobeef.org

Sun, Jun 28 1:30AM (5w ago)

↳ In-reply-to » We’re at 39.5 °C now. Are we going to hit 40? https://movq.de/v/43544d5385/2026-06-27--14-12.webp

@movq@www.uninformativ.de Oh my! :-O We reached 38°C. It’s now down one degree.

I just got up from my two, three hours siesta. And I tell you, that was bloody amazing. Layed in bed in undies, no blanket, just some power metal in my headphones and I was sleeping like a baby. Normally, I NEED a blanket, no matter what. But this summer, it’s already the second time that I actually manage to drop off without one.

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itsericwoodward

itsericwoodward.com

Tue, Jun 23 10:39AM (6w ago)

↳ In-reply-to » Behold! 😎 I present to you, GoNIX 🐧

@prologic@twtxt.net Very cool! 😎

Just one question: when do you sleep? 😁

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itsericwoodward

itsericwoodward.com

Sat, Jun 20 1:29PM (6w ago)

Just finished watching They Live (1988) again, one of my favorite movies, and one that has (sadly) remained relevant for nearly 40 years (some might even argue it’s more relevant today than ever).

Obey. Consume. No independent thought. Honor apathy. Do not question authority.

They live, we sleep.

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businessdesk-nz-breaking-news-and-commentary-on-business-nzx-and-politics

feeds.twtxt.net

Fri, Jun 12 3:00AM (8w ago)

Rachel Judge: When sleeping on the job is not enough to justify dismissal
With the Fifa World Cup kicking off today, some fans will have a busy viewing schedule to fit in around working hours. With a few early morning starts, staying awake for the rest of the day may become tricky. Where does that leave you if you fall asleep on the job? Recent case law shows that justifying dismissal in this situation is harder than you may think.

A Sydney security gu … ⌘ Read more

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movq

www.uninformativ.de

Thu, Jun 11 12:28AM (8w ago)

As I said, I’m on vacation, and for about a week now, I did basically nothing but sleep. Day or night.

I can’t tell if this actually is a vacation or just therapy for burnout. 🤔

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comingsoon-net

feeds.twtxt.net

Wed, Jun 10 11:20PM (8w ago)

Donald Trump’s NBA Finals ‘Nap’ Sparks Jimmy Kimmel’s Hysterical Reaction
Jimmy Kimmel, a vocal critic of Donald Trump, reacted to footage that appeared to show the President dozing off while attending the NBA Finals, where the New York Knicks faced the San Antonio Spurs. Trump’s appearance at the game had already generated discussion online due to heightened security measures. However, Kimmel focused primarily on the […]

The post [Donald Trump’s NBA Finals ‘Nap … ⌘ Read more

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TheAge_LatestNews

feeds.twtxt.net

Tue, Jun 9 11:30AM (8w ago)

The CCTV images that helped sink a Sydney hostel’s rooftop visions
Residents of two high-end Sydney apartment blocks say they have spent years pleading for a decent night’s sleep. Now they’ve clocked up a significant victory. ⌘ Read more

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TheAge_LatestNews

feeds.twtxt.net

Mon, Jun 8 5:00AM (8w ago)

Sai made an impossible choice about his health. Now he’s afraid to sleep at night
After Sai Akunuri bought his first family home, he was faced with a hard decision: Keep his life-saving diabetes device, or pay his mortgage. ⌘ Read more

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TheAge_Technology

feeds.twtxt.net

Sun, Jun 7 1:46PM (8w ago)

I tried Google’s new health app. It can’t replace a real trainer
Over the past few weeks, Google’s omniscient Coach has messaged me constantly about my heart, sleep and exercise. But how capable is it? ⌘ Read more

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