Raw Hotkeys

[johnny-smitherson]

Hello

I'm trying to achieve this example

leptos-hotkeys/examples/ssr-demo/src/app.rs

Line 63 in 9143458

use_hotkeys!(("controlleft") => move |_| {

Which is capturing when the Ctrl or Shift key pressed by itself (not a part of a combination like Ctrl+S).

But the callback for controlleft controlright does not trigger like suggested in the example above (never logs that text to console). Tested both ff and chrome

I see this switch

leptos-hotkeys/leptos_hotkeys/src/hotkey.rs

Line 47 in 9143458

match part.to_lowercase().as_str() {

It seems the key is only pushed to the thing if it's not a modifier.
This means we cannot capture events if only key pressed is modifier.

Which means we can't implement tetris: Shift and C are to hold. Ctrl and Z are to rotate 90° counterclockwise

---

But, say the switch above is changed to put the Ctrl both in the key codes and in the modifiers. That means we might have to match it using Ctrl+ControlLeft instead of just ControlLeft.

But then, when you throw the Shift key into the controls, and the user is mashing the keys in a desperate manner, a Ctrl keydown followed by Shift keydown (before the Ctrl keyup) might be seen as Ctrl+Shift+LeftShift, which will not match Shift+LeftShift

tl;dr Do you foresee any option to treat modifier keys as normal keys (to avoid the complications above)? Maybe separate use_raw_hotkeys! that gives the key codes without pre-processing the modifiers

[johnny-smitherson]

The macro defs are pretty gnarly maybe more of them is not a good idea

As workaround we commented out all mentions of Ctrl or Shift in leptos-hotkeys/leptos_hotkeys/src/hotkey.rs

[friendlymatthew]

Hi @johnny-smitherson sorry for the delay.

There isn't any specific reason why, when I was writing this I noticed a lot of other libraries followed such conventions.

Raw hotkeys sound cool and doable. Best of luck with Tetris! Would love to see it at the end :)