Selecting a preset after recording a custom combo left the custom entry
filled, so both looked active. Sync the dropdown to "Custom Shortcut"
when a non-preset is set, and clear the custom field when a preset wins.
* feat(shortcuts): configurable modifier+key hotkeys (e.g. Alt+R)
Generalize the shortcut system beyond single-modifier double-tap/hold to
support modifier+key combos (alt+r, ctrl+alt+r, super+space) in both toggle
(press once) and push-to-talk (hold) modes.
- base.py: ShortcutSpec + parse_shortcut_spec/is_valid_shortcut/format label;
parse_shortcut kept for back-compat (bare modifiers still rejected).
- evdev + pynput backends: combo detection with global (cross-device) modifier
tracking so split keyboards work; legacy gestures unchanged.
- keyboard_shortcuts: validate via is_valid_shortcut instead of a fixed allowlist.
- settings_dialog: additive Custom Shortcut row (typed entry + live Record capture).
- tests: 34 new tests (parser, back-compat, evdev + pynput combo, split keyboard).
* fix(shortcuts): apply saved shortcut (not stale preset) on mode change
When a custom shortcut (e.g. alt+r) is active, the preset combo still points at
a default/previous preset. _on_shortcut_mode_changed read the combo, so toggling
Toggle<->Push-to-Talk restarted the live listener on the wrong shortcut while
config still said alt+r. Read the saved shortcut from config instead.
Addresses Codex P2 review on PR #493.
* style: apply black formatting to configurable-hotkeys files
* test: cover _gdk_keyname_to_token shortcut-capture mapping
* fix(shortcuts): reset combo state after dropped/lost evdev events
SYN_DROPPED and device-disconnect recovery cleared key_pressed_devices but not
the combo state. A dropped modifier *release* left _combo_pressed thinking the
modifier was held, so the main key alone could falsely toggle/start dictation,
and a push-to-talk hold could stay stuck. Add _reset_combo_state() (clears the
pressed set and ends any live hold) and call it from both recovery paths.
Addresses maintainer review on PR #493.
* fix(settings): combo-aware toggle label (single press, not double-tap)
_update_shortcut_ui_for_mode always said 'Double-tap the key' for toggle mode,
but a modifier+key combo (e.g. alt+r) toggles on a single press. Read the saved
shortcut and use get_shortcut_display_name so a combo shows 'Press Alt+R'.
Addresses maintainer review on PR #493.
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Co-authored-by: Jatin K Malik <jatinkrmalik@gmail.com>
