Feat/keyboard double click

[yudshj]

No description provided.

[greptile-apps]

Confidence Score: 4/5

The PR should not merge until pulse-only controls retain their configured click fallback; the remaining findings are documentation corrections.

Findings

1.  Pulse bindings lose clicks ▶
2.  Protocol version is outdated ▶
3.  Fn guidance contradicts support ▶

Summary

This PR adds configurable click, hold, and double-click actions; a keyboard-chord editor with modifier-only and Fn support; lifecycle-aware Globe/Fn injection; and the associated configuration, IPC, localization, and testing updates.

• Introduces Binding::Clicks and timed double-click recognition.
• Generalizes held keyboard ownership across macOS, Linux, and Windows.
• Adds macOS Globe/Fn hold behavior and filters it from unsupported activation contexts.
• Adds three-card mouse-button editing and keyboard shortcut dialogs.
• Updates wire-format goldens, locales, and feature documentation.

Diagram

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[Physical button down] --> B{Binding type}
    B -->|Single held input| C[Start held keyboard output]
    B -->|Clicks / LongPress| D[Wait for hold threshold]
    A2[Physical button up] --> E{First short click has double action?}
    E -->|No| F[Dispatch click action]
    E -->|Yes| G[Wait up to 200 ms]
    G -->|Second down in interval| H[Dispatch double-click action on release]
    G -->|Timeout| F
    D -->|Threshold reached| I[Dispatch hold action]
    C --> J[Release or cancellation]
    I --> J
    J --> K[Drop held-input guard and release unowned keys]

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_{Reviews (1) · Last reviewed commit: "docs(gui): clarify dpi preset and instal..."}

[greptile-apps]

Pulse bindings lose clicks

Pulse-only HID++ controls now reject every Binding::Clicks binding before emitting a runtime event. For example, a binding with Click set to Copy and Hold set to Paste performs no action on hardware that only reports pulses, even though pulse-only sources are expected to fall back to the click action. Please reject only actions that require a physical release, or preserve the configured click fallback.

[greptile-apps]

Protocol version is outdated

This guide identifies these builds as IPC protocol 33, but the implementation and wire-format test pin protocol 34. Because the GUI and agent require matching protocol versions, this can lead readers to pair incompatible builds that cannot connect. Please update the guide and document what protocol 34 adds.

[greptile-apps]

Fn guidance contradicts support

This section says CustomShortcut = "Fn" cannot be entered, but the new KeyCombo parser and keyboard editor support Fn, including modifier-only chords, and a custom shortcut emits it as a balanced tap on macOS. This contradiction may cause users to avoid a supported configuration. Please distinguish an immediate Fn custom-shortcut tap from HoldGlobeKey and lifecycle-held shortcuts.

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