diff --git a/app/dts/bindings/behaviors/zmk,behavior-key-toggle.yaml b/app/dts/bindings/behaviors/zmk,behavior-key-toggle.yaml index e3ec86f7a16..7e465e88b61 100644 --- a/app/dts/bindings/behaviors/zmk,behavior-key-toggle.yaml +++ b/app/dts/bindings/behaviors/zmk,behavior-key-toggle.yaml @@ -6,3 +6,13 @@ description: Key toggle behavior compatible: "zmk,behavior-key-toggle" include: one_param.yaml + +properties: + toggle-mode: + type: string + required: false + default: "flip" + enum: + - "on" + - "off" + - "flip" diff --git a/app/dts/bindings/behaviors/zmk,behavior-toggle-layer.yaml b/app/dts/bindings/behaviors/zmk,behavior-toggle-layer.yaml index 0a9723f7bc5..1ab0179c492 100644 --- a/app/dts/bindings/behaviors/zmk,behavior-toggle-layer.yaml +++ b/app/dts/bindings/behaviors/zmk,behavior-toggle-layer.yaml @@ -6,3 +6,13 @@ description: Toggle Layer compatible: "zmk,behavior-toggle-layer" include: one_param.yaml + +properties: + toggle-mode: + type: string + required: false + default: "flip" + enum: + - "on" + - "off" + - "flip" diff --git a/app/src/behaviors/behavior_key_toggle.c b/app/src/behaviors/behavior_key_toggle.c index 72f2570b4d7..355f4e465de 100644 --- a/app/src/behaviors/behavior_key_toggle.c +++ b/app/src/behaviors/behavior_key_toggle.c @@ -17,18 +17,41 @@ LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL); +enum toggle_mode { + ON, + OFF, + FLIP, +}; + +struct behavior_key_toggle_config { + enum toggle_mode toggle_mode; +}; + static int behavior_key_toggle_init(const struct device *dev) { return 0; } static int on_keymap_binding_pressed(struct zmk_behavior_binding *binding, struct zmk_behavior_binding_event event) { LOG_DBG("position %d keycode 0x%02X", event.position, binding->param1); - bool pressed = zmk_hid_is_pressed(binding->param1); - return raise_zmk_keycode_state_changed_from_encoded(binding->param1, !pressed, event.timestamp); + const struct behavior_key_toggle_config *cfg = + zmk_behavior_get_binding(binding->behavior_dev)->config; + switch (cfg->toggle_mode) { + case ON: + return raise_zmk_keycode_state_changed_from_encoded(binding->param1, true, event.timestamp); + case OFF: + return raise_zmk_keycode_state_changed_from_encoded(binding->param1, false, + event.timestamp); + case FLIP: + bool pressed = zmk_hid_is_pressed(binding->param1); + return raise_zmk_keycode_state_changed_from_encoded(binding->param1, !pressed, + event.timestamp); + default: + return -ENOTSUP; + }; } static int on_keymap_binding_released(struct zmk_behavior_binding *binding, struct zmk_behavior_binding_event event) { - return 0; + return ZMK_BEHAVIOR_OPAQUE; } #if IS_ENABLED(CONFIG_ZMK_BEHAVIOR_METADATA) @@ -61,7 +84,11 @@ static const struct behavior_driver_api behavior_key_toggle_driver_api = { }; #define KT_INST(n) \ - BEHAVIOR_DT_INST_DEFINE(n, behavior_key_toggle_init, NULL, NULL, NULL, POST_KERNEL, \ + static const struct behavior_key_toggle_config behavior_key_toggle_config_##n = { \ + .toggle_mode = DT_ENUM_IDX(DT_DRV_INST(n), toggle_mode), \ + }; \ + BEHAVIOR_DT_INST_DEFINE(n, behavior_key_toggle_init, NULL, NULL, \ + &behavior_key_toggle_config_##n, POST_KERNEL, \ CONFIG_KERNEL_INIT_PRIORITY_DEFAULT, &behavior_key_toggle_driver_api); DT_INST_FOREACH_STATUS_OKAY(KT_INST) diff --git a/app/src/behaviors/behavior_toggle_layer.c b/app/src/behaviors/behavior_toggle_layer.c index ea46c79faa4..c804f5844c3 100644 --- a/app/src/behaviors/behavior_toggle_layer.c +++ b/app/src/behaviors/behavior_toggle_layer.c @@ -17,15 +17,33 @@ LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL); #if DT_HAS_COMPAT_STATUS_OKAY(DT_DRV_COMPAT) -struct behavior_tog_config {}; -struct behavior_tog_data {}; +enum toggle_mode { + ON, + OFF, + FLIP, +}; + +struct behavior_tog_config { + enum toggle_mode toggle_mode; +}; static int behavior_tog_init(const struct device *dev) { return 0; }; static int tog_keymap_binding_pressed(struct zmk_behavior_binding *binding, struct zmk_behavior_binding_event event) { LOG_DBG("position %d layer %d", event.position, binding->param1); - return zmk_keymap_layer_toggle(binding->param1); + + const struct behavior_tog_config *cfg = zmk_behavior_get_binding(binding->behavior_dev)->config; + switch (cfg->toggle_mode) { + case ON: + return zmk_keymap_layer_activate(binding->param1); + case OFF: + return zmk_keymap_layer_deactivate(binding->param1); + case FLIP: + return zmk_keymap_layer_toggle(binding->param1); + default: + return -ENOTSUP; + }; } static int tog_keymap_binding_released(struct zmk_behavior_binding *binding, @@ -63,11 +81,14 @@ static const struct behavior_driver_api behavior_tog_driver_api = { #endif // IS_ENABLED(CONFIG_ZMK_BEHAVIOR_METADATA) }; -static const struct behavior_tog_config behavior_tog_config = {}; - -static struct behavior_tog_data behavior_tog_data; +#define KT_INST(n) \ + static const struct behavior_tog_config behavior_tog_config_##n = { \ + .toggle_mode = DT_ENUM_IDX(DT_DRV_INST(n), toggle_mode), \ + }; \ + BEHAVIOR_DT_INST_DEFINE(n, behavior_tog_init, NULL, NULL, &behavior_tog_config_##n, \ + POST_KERNEL, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT, \ + &behavior_tog_driver_api); -BEHAVIOR_DT_INST_DEFINE(0, behavior_tog_init, NULL, &behavior_tog_data, &behavior_tog_config, - POST_KERNEL, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT, &behavior_tog_driver_api); +DT_INST_FOREACH_STATUS_OKAY(KT_INST) #endif /* DT_HAS_COMPAT_STATUS_OKAY(DT_DRV_COMPAT) */ diff --git a/app/tests/keytoggle/kt-off/events.patterns b/app/tests/keytoggle/kt-off/events.patterns new file mode 100644 index 00000000000..833100f6ac4 --- /dev/null +++ b/app/tests/keytoggle/kt-off/events.patterns @@ -0,0 +1 @@ +s/.*hid_listener_keycode_//p \ No newline at end of file diff --git a/app/tests/keytoggle/kt-off/keycode_events.snapshot b/app/tests/keytoggle/kt-off/keycode_events.snapshot new file mode 100644 index 00000000000..24404605860 --- /dev/null +++ b/app/tests/keytoggle/kt-off/keycode_events.snapshot @@ -0,0 +1,4 @@ +released: usage_page 0x07 keycode 0x05 implicit_mods 0x00 explicit_mods 0x00 +pressed: usage_page 0x07 keycode 0x05 implicit_mods 0x00 explicit_mods 0x00 +released: usage_page 0x07 keycode 0x05 implicit_mods 0x00 explicit_mods 0x00 +released: usage_page 0x07 keycode 0x05 implicit_mods 0x00 explicit_mods 0x00 \ No newline at end of file diff --git a/app/tests/keytoggle/kt-off/native_posix_64.keymap b/app/tests/keytoggle/kt-off/native_posix_64.keymap new file mode 100644 index 00000000000..4abf6ee99dc --- /dev/null +++ b/app/tests/keytoggle/kt-off/native_posix_64.keymap @@ -0,0 +1,29 @@ +#include "../behavior_keymap.dtsi" + +&kt { + toggle-mode = "off"; +}; + +&kscan { + events = < + ZMK_MOCK_PRESS(0,0,10) + ZMK_MOCK_RELEASE(0,0,10) + ZMK_MOCK_PRESS(1,1,10) + ZMK_MOCK_PRESS(0,0,10) + ZMK_MOCK_RELEASE(1,1,10) + ZMK_MOCK_RELEASE(0,0,10) + >; +}; + +/ { + keymap { + compatible = "zmk,keymap"; + + default_layer { + bindings = < + &kt B &trans + &trans &kp B + >; + }; + }; +}; \ No newline at end of file diff --git a/app/tests/keytoggle/kt-on/events.patterns b/app/tests/keytoggle/kt-on/events.patterns new file mode 100644 index 00000000000..833100f6ac4 --- /dev/null +++ b/app/tests/keytoggle/kt-on/events.patterns @@ -0,0 +1 @@ +s/.*hid_listener_keycode_//p \ No newline at end of file diff --git a/app/tests/keytoggle/kt-on/keycode_events.snapshot b/app/tests/keytoggle/kt-on/keycode_events.snapshot new file mode 100644 index 00000000000..6954f3daa9c --- /dev/null +++ b/app/tests/keytoggle/kt-on/keycode_events.snapshot @@ -0,0 +1,6 @@ +pressed: usage_page 0x07 keycode 0x05 implicit_mods 0x00 explicit_mods 0x00 +pressed: unregistering usage_page 0x07 keycode 0x05 since it was already pressed +pressed: usage_page 0x07 keycode 0x05 implicit_mods 0x00 explicit_mods 0x00 +pressed: unregistering usage_page 0x07 keycode 0x05 since it was already pressed +pressed: usage_page 0x07 keycode 0x05 implicit_mods 0x00 explicit_mods 0x00 +released: usage_page 0x07 keycode 0x05 implicit_mods 0x00 explicit_mods 0x00 \ No newline at end of file diff --git a/app/tests/keytoggle/kt-on/native_posix_64.keymap b/app/tests/keytoggle/kt-on/native_posix_64.keymap new file mode 100644 index 00000000000..964aa93bb8b --- /dev/null +++ b/app/tests/keytoggle/kt-on/native_posix_64.keymap @@ -0,0 +1,30 @@ +#include "../behavior_keymap.dtsi" + +&kt { + toggle-mode = "on"; +}; + + +&kscan { + events = < + ZMK_MOCK_PRESS(0,0,10) + ZMK_MOCK_RELEASE(0,0,10) + ZMK_MOCK_PRESS(1,1,10) + ZMK_MOCK_PRESS(0,0,10) + ZMK_MOCK_RELEASE(1,1,10) + ZMK_MOCK_RELEASE(0,0,10) + >; +}; + +/ { + keymap { + compatible = "zmk,keymap"; + + default_layer { + bindings = < + &kt B &trans + &trans &kp B + >; + }; + }; +}; \ No newline at end of file diff --git a/app/tests/toggle-layer/behavior_keymap.dtsi b/app/tests/toggle-layer/behavior_keymap.dtsi index 1ff4a81f3e4..7c712a874f5 100644 --- a/app/tests/toggle-layer/behavior_keymap.dtsi +++ b/app/tests/toggle-layer/behavior_keymap.dtsi @@ -9,7 +9,7 @@ default_layer { bindings = < &kp B &tog 1 - &kp D &kp G>; + &kp D &to 1>; }; lower_layer { diff --git a/app/tests/toggle-layer/early-key-release/native_posix_64.keymap b/app/tests/toggle-layer/early-key-release/native_posix_64.keymap index 0a0c88ea845..dfdbe1724c9 100644 --- a/app/tests/toggle-layer/early-key-release/native_posix_64.keymap +++ b/app/tests/toggle-layer/early-key-release/native_posix_64.keymap @@ -4,6 +4,12 @@ #include "../behavior_keymap.dtsi" &kscan { - events = ; + events = < + ZMK_MOCK_PRESS(0,0,10) + ZMK_MOCK_PRESS(0,1,10) + ZMK_MOCK_RELEASE(0,0,10) + ZMK_MOCK_RELEASE(0,1,10) + ZMK_MOCK_PRESS(0,0,10) + ZMK_MOCK_RELEASE(0,0,10) + >; }; \ No newline at end of file diff --git a/app/tests/toggle-layer/normal/keycode_events.snapshot b/app/tests/toggle-layer/normal/keycode_events.snapshot index 515772a4d1f..1d28c7f98af 100644 --- a/app/tests/toggle-layer/normal/keycode_events.snapshot +++ b/app/tests/toggle-layer/normal/keycode_events.snapshot @@ -2,3 +2,7 @@ tog_pressed: position 1 layer 1 tog_released: position 1 layer 1 kp_pressed: usage_page 0x0C keycode 0xB5 implicit_mods 0x00 explicit_mods 0x00 kp_released: usage_page 0x0C keycode 0xB5 implicit_mods 0x00 explicit_mods 0x00 +tog_pressed: position 1 layer 1 +tog_released: position 1 layer 1 +kp_pressed: usage_page 0x07 keycode 0x05 implicit_mods 0x00 explicit_mods 0x00 +kp_released: usage_page 0x07 keycode 0x05 implicit_mods 0x00 explicit_mods 0x00 \ No newline at end of file diff --git a/app/tests/toggle-layer/normal/native_posix_64.keymap b/app/tests/toggle-layer/normal/native_posix_64.keymap index 97bdd17993d..8f0124db34e 100644 --- a/app/tests/toggle-layer/normal/native_posix_64.keymap +++ b/app/tests/toggle-layer/normal/native_posix_64.keymap @@ -4,5 +4,14 @@ #include "../behavior_keymap.dtsi" &kscan { - events = ; + events = < + ZMK_MOCK_PRESS(0,1,10) + ZMK_MOCK_RELEASE(0,1,10) + ZMK_MOCK_PRESS(0,0,10) + ZMK_MOCK_RELEASE(0,0,10) + ZMK_MOCK_PRESS(0,1,10) + ZMK_MOCK_RELEASE(0,1,10) + ZMK_MOCK_PRESS(0,0,10) + ZMK_MOCK_RELEASE(0,0,10) + >; }; \ No newline at end of file diff --git a/app/tests/toggle-layer/toggle-mode-off/events.patterns b/app/tests/toggle-layer/toggle-mode-off/events.patterns new file mode 100644 index 00000000000..30996ad02d5 --- /dev/null +++ b/app/tests/toggle-layer/toggle-mode-off/events.patterns @@ -0,0 +1,4 @@ +s/.*hid_listener_keycode/kp/p +s/.*to_keymap_binding/to/p +s/.*layer_changed/layer_changed/p +s/.*tog_keymap_binding/tog/p \ No newline at end of file diff --git a/app/tests/toggle-layer/toggle-mode-off/keycode_events.snapshot b/app/tests/toggle-layer/toggle-mode-off/keycode_events.snapshot new file mode 100644 index 00000000000..94b7b3607e8 --- /dev/null +++ b/app/tests/toggle-layer/toggle-mode-off/keycode_events.snapshot @@ -0,0 +1,14 @@ +tog_pressed: position 1 layer 1 +tog_released: position 1 layer 1 +kp_pressed: usage_page 0x07 keycode 0x05 implicit_mods 0x00 explicit_mods 0x00 +kp_released: usage_page 0x07 keycode 0x05 implicit_mods 0x00 explicit_mods 0x00 +to_pressed: position 3 layer 1 +layer_changed: layer 1 state 1 +to_released: position 3 layer 1 +kp_pressed: usage_page 0x0C keycode 0xB5 implicit_mods 0x00 explicit_mods 0x00 +kp_released: usage_page 0x0C keycode 0xB5 implicit_mods 0x00 explicit_mods 0x00 +tog_pressed: position 1 layer 1 +layer_changed: layer 1 state 0 +tog_released: position 1 layer 1 +kp_pressed: usage_page 0x07 keycode 0x05 implicit_mods 0x00 explicit_mods 0x00 +kp_released: usage_page 0x07 keycode 0x05 implicit_mods 0x00 explicit_mods 0x00 \ No newline at end of file diff --git a/app/tests/toggle-layer/toggle-mode-off/native_posix_64.keymap b/app/tests/toggle-layer/toggle-mode-off/native_posix_64.keymap new file mode 100644 index 00000000000..a89182fcc29 --- /dev/null +++ b/app/tests/toggle-layer/toggle-mode-off/native_posix_64.keymap @@ -0,0 +1,25 @@ +#include +#include +#include +#include "../behavior_keymap.dtsi" + +&tog { + toggle-mode = "off"; +}; + +&kscan { + events = < + ZMK_MOCK_PRESS(0,1,10) + ZMK_MOCK_RELEASE(0,1,10) + ZMK_MOCK_PRESS(0,0,10) + ZMK_MOCK_RELEASE(0,0,10) + ZMK_MOCK_PRESS(1,1,10) + ZMK_MOCK_RELEASE(1,1,10) + ZMK_MOCK_PRESS(0,0,10) + ZMK_MOCK_RELEASE(0,0,10) + ZMK_MOCK_PRESS(0,1,10) + ZMK_MOCK_RELEASE(0,1,10) + ZMK_MOCK_PRESS(0,0,10) + ZMK_MOCK_RELEASE(0,0,10) + >; +}; \ No newline at end of file diff --git a/app/tests/toggle-layer/toggle-mode-on/events.patterns b/app/tests/toggle-layer/toggle-mode-on/events.patterns new file mode 100644 index 00000000000..397fef4f319 --- /dev/null +++ b/app/tests/toggle-layer/toggle-mode-on/events.patterns @@ -0,0 +1,2 @@ +s/.*hid_listener_keycode/kp/p +s/.*tog_keymap_binding/tog/p \ No newline at end of file diff --git a/app/tests/toggle-layer/toggle-mode-on/keycode_events.snapshot b/app/tests/toggle-layer/toggle-mode-on/keycode_events.snapshot new file mode 100644 index 00000000000..3dd5f27e068 --- /dev/null +++ b/app/tests/toggle-layer/toggle-mode-on/keycode_events.snapshot @@ -0,0 +1,8 @@ +tog_pressed: position 1 layer 1 +tog_released: position 1 layer 1 +kp_pressed: usage_page 0x0C keycode 0xB5 implicit_mods 0x00 explicit_mods 0x00 +kp_released: usage_page 0x0C keycode 0xB5 implicit_mods 0x00 explicit_mods 0x00 +tog_pressed: position 1 layer 1 +tog_released: position 1 layer 1 +kp_pressed: usage_page 0x0C keycode 0xB5 implicit_mods 0x00 explicit_mods 0x00 +kp_released: usage_page 0x0C keycode 0xB5 implicit_mods 0x00 explicit_mods 0x00 \ No newline at end of file diff --git a/app/tests/toggle-layer/toggle-mode-on/native_posix_64.keymap b/app/tests/toggle-layer/toggle-mode-on/native_posix_64.keymap new file mode 100644 index 00000000000..690787eb77c --- /dev/null +++ b/app/tests/toggle-layer/toggle-mode-on/native_posix_64.keymap @@ -0,0 +1,21 @@ +#include +#include +#include +#include "../behavior_keymap.dtsi" + +&tog { + toggle-mode = "on"; +}; + +&kscan { + events = < + ZMK_MOCK_PRESS(0,1,10) + ZMK_MOCK_RELEASE(0,1,10) + ZMK_MOCK_PRESS(0,0,10) + ZMK_MOCK_RELEASE(0,0,10) + ZMK_MOCK_PRESS(0,1,10) + ZMK_MOCK_RELEASE(0,1,10) + ZMK_MOCK_PRESS(0,0,10) + ZMK_MOCK_RELEASE(0,0,10) + >; +}; \ No newline at end of file diff --git a/docs/docs/config/behaviors.md b/docs/docs/config/behaviors.md index 527d73c6bae..9c149b7a27e 100644 --- a/docs/docs/config/behaviors.md +++ b/docs/docs/config/behaviors.md @@ -17,6 +17,14 @@ See the [zmk/app/dts/behaviors/](https://github.com/zmkfirmware/zmk/tree/main/ap | --------------------------------- | ---- | ------------------------------------------------------------------------------------ | ------- | | `CONFIG_ZMK_BEHAVIORS_QUEUE_SIZE` | int | Maximum number of behaviors to allow queueing from a macro or other complex behavior | 64 | +### Devicetree + +Definition file: [zmk/app/dts/bindings/behaviors/behavior-metadata.yaml](https://github.com/zmkfirmware/zmk/blob/main/app/dts/bindings/behaviors/behavior-metadata.yaml) + +| Property | Type | Description | Default | +| -------------- | ------ | -------------------------------------------------------------------------------- | ------- | +| `display-name` | string | Name of the layer, for use with a display or [ZMK Studio](../features/studio.md) | | + ## Caps Word Creates a custom behavior that behaves similar to a caps lock but deactivates when any key not in a continue list is pressed. @@ -123,6 +131,52 @@ You can use the following nodes to tweak the default behaviors: | ------------- | ------------------------------------------------ | | `&key_repeat` | [Key repeat](../keymaps/behaviors/key-repeat.md) | +## Key Toggle + +Creates a custom behavior that toggles a key code on, off, or switches between the two states. + +See the [key toggle behavior](../keymaps/behaviors/key-toggle.md) documentation for more details and examples. + +### Devicetree + +Definition file: [zmk/app/dts/bindings/behaviors/zmk,behavior-key-toggle.yaml](https://github.com/zmkfirmware/zmk/blob/main/app/dts/bindings/behaviors/zmk%2Cbehavior-key-toggle.yaml) + +Applies to: `compatible = "zmk,behavior-key-toggle"` + +| Property | Type | Description | Default | +| ---------------- | ---- | ------------------------------ | ------- | +| `#binding-cells` | int | Must be `<1>` | | +| `toggle-mode` | | One of `on`, `off`, and `flip` | `flip` | + +You can use the following node to tweak the default behavior: + +| Node | Behavior | +| ----- | ------------------------------------------------ | +| `&kt` | [Key toggle](../keymaps/behaviors/key-toggle.md) | + +## Layer Toggle + +Creates a custom behavior that toggles a layer on, off, or switches between the two states. + +See the [layer toggle behavior](../keymaps/behaviors/layers.md#toggle-layer) documentation for more details and examples. + +### Devicetree + +Definition file: [zmk/app/dts/bindings/behaviors/zmk,behavior-layer-toggle.yaml](https://github.com/zmkfirmware/zmk/blob/main/app/dts/bindings/behaviors/zmk%2Cbehavior-layer-toggle.yaml) + +Applies to: `compatible = "zmk,behavior-layer-toggle"` + +| Property | Type | Description | Default | +| ---------------- | ---- | ------------------------------ | ------- | +| `#binding-cells` | int | Must be `<1>` | | +| `toggle-mode` | | One of `on`, `off`, and `flip` | `flip` | + +You can use the following node to tweak the default behavior: + +| Node | Behavior | +| ------ | ----------------------------------------------------------- | +| `&tog` | [Layer toggle](../keymaps/behaviors/layers.md#toggle-layer) | + ## Macro Creates a custom behavior which triggers a sequence of other behaviors. diff --git a/docs/docs/keymaps/behaviors/key-toggle.md b/docs/docs/keymaps/behaviors/key-toggle.md index 8200b455da9..173087cad44 100644 --- a/docs/docs/keymaps/behaviors/key-toggle.md +++ b/docs/docs/keymaps/behaviors/key-toggle.md @@ -24,3 +24,25 @@ Example: You can use any keycode that works for `&kp` as parameter to `&kt`, however, [modified keys](../modifiers.mdx#modifier-functions) such as `LA(A)` will be toggled based on the status of the base keycode (in this case `A`). In other words, modifiers are ignored when determining whether or not the key is currently pressed. + +### Configuration + +#### Toggle mode + +If you wish to ensure that a key is pressed or released, rather than merely toggling, then you can do so with the `toggle-mode` property. +Define a new behavior and assign `"on"` or `"off"` to `toggle-mode`: + +```dts +/ { + behaviors { + kt_on: key_toggle_on_only { + compatible = "zmk,behavior-key-toggle"; + #binding-cells = <1>; + display-name = "Key Toggle On"; + toggle-mode = "on"; + }; + }; +}; +``` + +You can then use `&kt_on` in place of `&kt` whenever you wish to only toggle a key on, and not toggle it off. An `"off"` version of the behavior can be defined similarly. diff --git a/docs/docs/keymaps/behaviors/layers.md b/docs/docs/keymaps/behaviors/layers.md index 0dbb0057e03..5ab38a8502f 100644 --- a/docs/docs/keymaps/behaviors/layers.md +++ b/docs/docs/keymaps/behaviors/layers.md @@ -116,6 +116,28 @@ Example: &tog LOWER ``` +### Configuration + +#### Toggle mode + +If you wish to ensure that a layer is toggled on or off specifically, rather than switching between the two states, then you can do so with the `toggle-mode` property. +Define a new behavior and assign `"on"` or `"off"` to `toggle-mode`: + +```dts +/ { + behaviors { + tog_on: toggle_layer_on_only { + compatible = "zmk,behavior-toggle-layer"; + #binding-cells = <1>; + display-name = "Toggle Layer On"; + toggle-mode = "on"; + }; + }; +}; +``` + +You can then use `&tog_on` in place of `&tog` whenever you wish to only toggle a layer on, and not toggle it off. An `"off"` version of the behavior can be defined similarly. + ## Conditional Layers The "conditional layers" feature enables a particular layer when all layers in a specified set are active.