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feature(modifiers): add explicit modifiers

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this makes LS(LEFT_CONTROL) work as if shift and control were both
pressed explicitly. Previously, the left shift would have been released
as soon as another key was pressed. The implicit behavior is useful in
case of LS(NUMBER_1) when rolling over to other keys.

Also see #361.
This commit is contained in:
Okke Formsma
2021-01-22 17:00:19 +01:00
committed by Pete Johanson
parent 0c30b49063
commit 7b7701ae90
83 changed files with 425 additions and 336 deletions
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15
app/include/zmk/events/keycode_state_changed.h
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@@ -7,8 +7,6 @@
#pragma once
#include <zephyr.h>
#include <dt-bindings/zmk/modifiers.h>
#include <dt-bindings/zmk/hid_usage_pages.h>
#include <zmk/event_manager.h>
#include <zmk/keys.h>
@@ -16,6 +14,7 @@ struct zmk_keycode_state_changed {
uint16_t usage_page;
uint32_t keycode;
uint8_t implicit_modifiers;
uint8_t explicit_modifiers;
bool state;
int64_t timestamp;
};
@@ -26,16 +25,24 @@ static inline struct zmk_keycode_state_changed_event *
zmk_keycode_state_changed_from_encoded(uint32_t encoded, bool pressed, int64_t timestamp) {
uint16_t page = HID_USAGE_PAGE(encoded) & 0xFF;
uint16_t id = HID_USAGE_ID(encoded);
zmk_mod_flags_t implicit_mods = SELECT_MODS(encoded);
uint8_t implicit_modifiers = 0x00;
uint8_t explicit_modifiers = 0x00;
if (!page) {
page = HID_USAGE_KEY;
}
if (is_mod(page, id)) {
explicit_modifiers = SELECT_MODS(encoded);
} else {
implicit_modifiers = SELECT_MODS(encoded);
}
return new_zmk_keycode_state_changed(
(struct zmk_keycode_state_changed){.usage_page = page,
.keycode = id,
.implicit_modifiers = implicit_mods,
.implicit_modifiers = implicit_modifiers,
.explicit_modifiers = explicit_modifiers,
.state = pressed,
.timestamp = timestamp});
}