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fix(docs): Document `ignore-modifiers` and `quick-release` for sticky keys (#1228)

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Herald 2022-04-14 16:13:33 +01:00 committed by GitHub
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docs/docs/behaviors/sticky-key.md
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@ -7,8 +7,6 @@ sidebar_label: Sticky Key
A sticky key stays pressed until another key is pressed. It is often used for 'sticky shift'. By using a sticky shift, you don't have to hold the shift key to write a capital.
By default, sticky keys stay pressed for a second if you don't press any other key. You can configure this with the `release-after-ms` setting (see below).
### Behavior Binding
- Reference: `&sk`
@ -28,11 +26,25 @@ You can use any keycode that works for `&kp` as parameter to `&sk`:
### Configuration
You can configure a different `release-after-ms` in your keymap:
#### `release-after-ms`
By default, sticky keys stay pressed for a second if you don't press any other key. You can configure this with the `release-after-ms` setting.
#### `quick-release`
Some typists may find that using a sticky shift key interspersed with rapid typing results in two or more capitalized letters instead of one. This happens as the sticky key is active until the next key is released, under which other keys may be pressed and will receive the modifier. You can enable the `quick-release` setting to instead deactivate the sticky key on the next key being pressed, as opposed to released.
#### `ignore-modifiers`
This setting is enabled by default. It ensures that if a sticky key modifier is pressed before a previously pressed sticky key is released, the modifiers will get combined so you can add more sticky keys or press a regular key to apply the modifiers. This is to accommodate _callum-style mods_ where you are prone to rolling sticky keys. If you want sticky key modifiers to only chain after release, you can disable this setting.
#### Example
```
&sk {
release-after-ms = <2000>;
quick-release;
/delete-property/ ignore-modifiers;
};
/ {
@ -42,6 +54,27 @@ You can configure a different `release-after-ms` in your keymap:
};
```
This configuration would apply to all sticky keys. This may not be appropriate if using `quick-release` as you'll lose the ability to chain sticky key modifiers. A better approach for this use case would be to create a new behavior:
```
/ {
behaviors {
skq: sticky_key_quick_release {
compatible = "zmk,behavior-sticky-key";
label = "STICKY_KEY_QUICK_RELEASE";
#binding-cells = <1>;
bindings = <&kp>;
release-after-ms = <1000>;
quick-release;
};
};
keymap {
...
};
};
```
### Advanced usage
Sticky keys can be combined; if you tap `&sk LCTRL` and then `&sk LSHIFT` and then `&kp A`, the output will be ctrl+shift+a.