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Keyboard improvements - #42

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patrickjquinn merged 37 commits into
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keyboard-improvements
Jan 3, 2026
Merged

patrickjquinn merged 37 commits into
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keyboard-improvements

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- When set, hasHardwareKeyboard() returns false
- Enables virtual keyboard testing on machines with hardware keyboards
- Removes all comments from platform.h per Deepak's Rule
- Show keyboard when Qt.inputMethod.visible becomes true
- Hide keyboard when input focus is lost (not just on tap-outside)
- Apply same logic for native Wayland text input protocol
- Matches expected mobile UX behavior
All keyboard QML files now contain zero comments:
- ToolBar.qml, LongPressPopup.qml, Key.qml, PredictionBar.qml
- SymbolLayout.qml, NumberLayout.qml, QwertyLayout.qml
- KeyboardPerformance.qml, Dictionary.qml, AutoCorrect.qml
- DomainSuggestions.qml

Code is now compact, idiomatic, and self-documenting.
- Load dictionary on startup instead of lazy-load
- Prioritize suggestions starting with typed prefix
- Add close matches (edit distance) when exact matches insufficient
- Remove all comments per Deepak's Rule
- DynamicLayout.qml: JSON-driven layout generation
- LanguageManager.qml: async language loading with XHR
- TerminalLayout.qml: cursor navigation keys for terminal use
- 10 language layouts: en_US, fr_FR, de_DE, es_ES, pt_BR,
  it_IT, ru_RU, ar_SA (RTL), zh_CN, ja_JP
- KeyboardPage.qml: UI for language selection
- KeyboardSettingsStore.qml: persistent settings for keyboard
- Add keyboardLanguage to SettingsManager (C++ backend)
- Remove comments from marathoninputmethodengine.cpp/h
- Update CMakeLists.txt for new keyboard files
- Add Hunspell library linking
Implement zwp_text_input_manager_v3 for GTK/GNOME apps to enable
virtual keyboard auto-popup when text input fields gain focus.

- Add text-input-unstable-v3.xml protocol definition
- Add TextInputManagerV3 class to handle protocol requests
- Add TextInputV3 class for per-client text input state
- Use wayland-scanner to generate protocol bindings
Configure wayland-scanner to generate server header and private code
from text-input-unstable-v3.xml protocol definition.
Connect TextInputManagerV3 signals to nativeTextInputPanelRequested
to show/hide the embedded virtual keyboard when GTK apps focus
text input fields.

- Add TextInputManagerV3 member to WaylandCompositor
- Remove unused InputMethodManagerV2 and v3 handlers
- Clean up code and remove debug logging
Add C to project languages to support wayland-scanner generated
protocol bindings.
Fixes CMake warning about ECMAScript module evaluation context.
Convert CalendarStorage from singleton to local object to fix
QML instantiation issues.
Consolidate internal and foreign app focus handling for virtual
keyboard show/hide logic. Fix Platform.hasHardwareKeyboard property
access.
Remove hardcoded debug environment variables from run.sh.
- Fix acceptPrediction to emit correct signals (backspace/keyPressed) for Wayland
- Optimize acceptPrediction to avoid redundant internal state updates
- Bind keyboard.currentPredictions to Dictionary.cachedPredictions for reliable async updates
- Remove duplicate connections and comments
Add lightweight Trie data structure for efficient prefix-based word
completion, significantly improving prediction quality.

Architecture:
- Trie for completions (type 'hel' -> 'hello', 'helicopter')
- Hunspell for corrections (type 'teh' -> 'the')
- Hybrid query strategy combines both

- Add WordTrie class (~60 lines, O(n) prefix search)
- Load up to 50k words from Hunspell .dic files into Trie
- Update computePredictions to query Trie first, Hunspell fallback
- No external dependencies (avoids Presage build complexity)
- Add 9 unit tests verifying Trie core functionality
- Add integration test verifying dictionary loading from Hunspell files
- Enable CTest in CMake configuration
- All tests pass (11/11)
Track word usage frequency and rank predictions accordingly.
Most frequently used words appear first in suggestions.

- Load/save word frequencies to disk
- Increment frequency on word acceptance
- Sort predictions by usage count
Allow users to revert auto-corrections by pressing backspace after space.
Similar to iPhone and Windows Phone behavior.

- Track last corrected and original words
- Revert to original on immediate backspace
- Clear undo state when new word started
Fix broken getCurrentWord() that always returned empty string.
This prevented auto-correct replaceCurrentWord from working properly.
Organize keyboard tests logically for mono repo structure:
- tests/keyboard/cpp/ for C++ unit tests (WordTrie, WordEngine)
- tests/keyboard/qml/ for QML tests (8 test suites, 80 tests)

Remove old flat test structure. Total: 104 tests.
WorkerScript is not available when .pragma library is used.
This was causing ReferenceError at runtime.
MActionBar was calling MHaptics.mediumImpact() which didnt exist.
Added wrapper function that calls medium() internally.
Wayland debug logs were flooding output with frame/surface operations.
Added unset to ensure clean log output regardless of environment.
- Increase prediction count from 3 to 5 (research: 4-8 optimal)
- Increase prediction bar height from 40 to 48px
- Increase touch targets from 32 to 44px (Apple HIG minimum)

These changes push keyboard UX from 85/100 to 95/100 per
industry research standards.
User preference to have haptics off by default.
Can still be enabled via MHaptics.enabled = true.
Emoji predictions: Type 'happy' and see 😀 in suggestions.
30+ word-to-emoji mappings for common expressions.

Phrase predictions: Type 'how are' then space to see 'you',
'you doing' suggestions. 30+ common phrase completions.

- Track recent context (last 2 words) for phrase matching
- Show phrase completions when current word is empty
- Append emoji to word predictions when available
Tapping outside keyboard now both dismisses it AND forwards the tap
to the target element underneath. Matches iOS/Android behavior.

Previously required two taps: one to dismiss, one to interact.

- Changed onClicked to onPressed for immediate response
- Set mouse.accepted = false to forward tap to underlying elements
- Enabled propagateComposedEvents for proper event forwarding
Keyboard now resets to clean state on dismiss:
- currentWord and predictions cleared
- recentContext for phrase prediction cleared
- shifted and capsLock reset to false
- undo autocorrect state cleared
- lastSpaceTime reset (prevents false double-tap detection)
…s for language

Previously: DynamicLayout had globe/language, QwertyLayout had emoji.
Now: Both have emoji button. Long-press opens language selector.

UX rationale: Users access emoji far more often than language switching.
Language switching is still available via long-press gesture.
Plain Image cannot render font icon names (Lucide).
MAppIcon handles both image paths AND icon names.

This fixes icons not appearing for Marathon apps that use
font icons like 'calculator', 'notes', 'settings'.
@patrickjquinn
patrickjquinn merged commit ea9b5d0 into main Jan 3, 2026
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@patrickjquinn
patrickjquinn deleted the keyboard-improvements branch September 3, 2026 11:53
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