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feat(ui): compact on-screen keyboard toggle for external keyboards

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Add Settings > Keyboard "Ext. KB" row (boards with a CardKB-capable I2C
bus only): switching it to Compact hides the letter grid and special-row
icons in favour of a one-line status (script/page, caps) plus a Fn-shortcut
reminder, since an external-keyboard typist never looks at the on-screen
grid. Accent/placeholder popups still render as before. Off by default.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
This commit is contained in:
Jakub
2026-07-24 15:51:51 +02:00
parent ad4668242b
commit a0b1c80c85
5 changed files with 138 additions and 76 deletions
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7
examples/companion_radio/DataStore.cpp
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@@ -551,6 +551,12 @@ void DataStore::loadPrefsInt(const char *filename, NodePrefs& _prefs, double& no
rd(&_prefs.gpio4_mode, sizeof(_prefs.gpio4_mode));
if (_prefs.gpio4_mode > 3) _prefs.gpio4_mode = 0;
// → 0xC0DE0023: append the external-keyboard compact-display toggle at the
// tail. A pre-0x23 file has no byte here; clamp to 0 (full grid, unchanged
// behaviour for upgraders).
rd(&_prefs.keyboard_cardkb_compact, sizeof(_prefs.keyboard_cardkb_compact));
if (_prefs.keyboard_cardkb_compact > 1) _prefs.keyboard_cardkb_compact = 0;
// Schema sentinel: bumped on layout changes. Mismatch means an older file
// (or a different schema); rd() already zero-inits any fields not present,
// so we just log it — next savePrefs writes the current sentinel.
@@ -762,6 +768,7 @@ void DataStore::savePrefs(const NodePrefs& _prefs, double node_lat, double node_
file.write((uint8_t *)&_prefs.gpio2_mode, sizeof(_prefs.gpio2_mode));
file.write((uint8_t *)&_prefs.gpio3_mode, sizeof(_prefs.gpio3_mode));
file.write((uint8_t *)&_prefs.gpio4_mode, sizeof(_prefs.gpio4_mode));
file.write((uint8_t *)&_prefs.keyboard_cardkb_compact, sizeof(_prefs.keyboard_cardkb_compact));
// Tail sentinel — must be last. See NodePrefs::SCHEMA_SENTINEL. Its write is
// the one we check: once the flash fills, writes return 0, so a good