steam-frame/lhns--steam-frame-nix
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Portal: KDE file dialog for Flatpak apps in the Steam session

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Neither Valve backend (gamescope, holo) implements FileChooser, so sandboxed
apps fell back to an in-sandbox dialog without the home dir (e.g. Element's
Attachments). session.portalFix.fileChooser (on) links kde.portal into the
Steam session's portal dir and selects kde for FileChooser;
xdg-desktop-portal-kde is D-Bus activated with DISPLAY=:0. Flake check
for the portal config.
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Pierre Kisters committed 2026-09-29 03:20:12 +02:00
1 parent 356dcb9012
commit 50e5991c59
6 files changed
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README.md
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@@ -26,7 +26,7 @@ configuration, limitations and how it works.
**Session** ([docs/session.md](docs/session.md)):
- [Session settings](docs/session.md#session-settings-and-services) (`session.*`): outer bus and user services, for launchers and the other modules.
- [Portal fix](docs/session.md#portal-fix) (`session.portalFix`, on): apps in the Steam session can open links.
- [Portal fix](docs/session.md#portal-fix) (`session.portalFix`, on): apps in the Steam session can open links, and Flatpak apps get KDE's file dialog.
- [Applications menu](docs/session.md#applications-menu) (`session.applicationsMenu`, on): KDE apps in the Steam session (Dolphin from the "+" menu) know the installed apps.
- [Keyboard layout](docs/session.md#keyboard-layout) (`keyboard.layout`, `keyboard.variant`): XKB layout for the Steam session.
- [Clipboard sync](docs/session.md#clipboard-sync) (`clipboardSync`, on): one clipboard for the Steam session and the nested desktop.
@@ -232,6 +232,7 @@ which: [Repository layout](docs/development.md).
| `steamFrame.session.services.restart` | list of str | `[ ]` | User units restarted on every switch. |
| `steamFrame.session.services.stop` | list of str | `[ ]` | User units stopped on switch if running (e.g. of a disabled feature). |
| `steamFrame.session.portalFix.enable` | bool | `true` | Working portal config (OpenURI) for the Steam session. |
| `steamFrame.session.portalFix.fileChooser` | bool | `true` | KDE's file dialog as the Steam session's FileChooser portal (Flatpak apps can open and save files outside their sandbox). Needs `portalFix.enable`. |
| `steamFrame.session.applicationsMenu.enable` | bool | `true` | `~/.config/menus/applications.menu` linked to Plasma's, for KDE apps in the Steam session. |
| `steamFrame.keyboard.layout` | null or str | `null` | XKB layout for the Steam session, e.g. `"de"`; `null`: US. |
| `steamFrame.keyboard.variant` | null or str | `null` | XKB variant for the Steam session, e.g. `"nodeadkeys"`; see [Keyboard layout](docs/session.md#keyboard-layout). |