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feat: add Undo/Cut/Copy/Paste keycodes - #5591

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feat: add Undo/Cut/Copy/Paste keycodes#5591
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@TinfoilSubmarine TinfoilSubmarine commented Aug 31, 2026

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Description

Continuation of #5397 with libvirtualhid.

Add support for Undo/Cut/Copy/Paste keycodes (keyboard HID spec usage IDs 0x7A-0x7D). In order to do this I added some ad-hoc/bespoke keycodes in libvirtualhid.

Depends on LizardByte/libvirtualhid#120

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  • feat: New feature (non-breaking change which adds functionality)
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  • BREAKING CHANGE: Introduces a breaking change (can be combined with any type above)

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  • Code follows the style guidelines of this project
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  • Code docstring/documentation-blocks for new or existing methods/components have been added or updated
  • Unit tests have been added or updated for any new or modified functionality

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@TinfoilSubmarine TinfoilSubmarine changed the title add non-VK Undo/Cut/Copy/Paste keycodes add Undo/Cut/Copy/Paste keycodes Aug 31, 2026
@TinfoilSubmarine TinfoilSubmarine changed the title add Undo/Cut/Copy/Paste keycodes feat: add Undo/Cut/Copy/Paste keycodes Aug 31, 2026
@TinfoilSubmarine TinfoilSubmarine mentioned this pull request Aug 31, 2026
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ReenigneArcher
ReenigneArcher requested changes Sep 2, 2026
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@ReenigneArcher ReenigneArcher left a comment

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Could you preserve whether the original packet contained the 0x8000 normalized-key prefix before applying this conversion?

SS_KBE_FLAG_NON_NORMALIZED alone does not distinguish these SDL scancodes from F11–F14. Moonlight Android can set that flag when keyboard-layout normalization is unavailable while still sending 0x8000 | VK_*. With the current ordering, 0x807A becomes 0x7A and is then converted from F11 to Undo; F12–F14 similarly become Cut/Copy/Paste.

Please either apply the 0x7A–0x7D aliases only when the original keycode did not contain 0x8000, or remove the ambiguous aliases and accept only the dedicated 0x0100–0x0103 values. A regression test should cover 0x807A–0x807D with SS_KBE_FLAG_NON_NORMALIZED.

When rebasing this PR, please preserve master’s current remapped-key release behavior.

@TinfoilSubmarine
feat(input): add Undo/Cut/Copy/Paste editing keycodes for Linux
2eb3a59 
Map the non-normalized Undo/Cut/Copy/Paste keys (sent by clients as SDL
scancodes 0x7A-0x7D or dedicated 0x0100-0x0103 values) to the native
Linux editing keys via libvirtualhid. Only apply the scancode aliases
when the original keycode lacked the 0x8000 normalized-key prefix so the
F11-F14 virtual keys are not reinterpreted.
@sonarqubecloud

sonarqubecloud Bot commented Sep 3, 2026

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Quality Gate Passed Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

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@ReenigneArcher ReenigneArcher ReenigneArcher requested changes

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