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Marco Allegretti
8dd3bfbb07
openSUSE Tumbleweed's plasma6-nm 6.6.4 does not ship the org.kde.plasma.networkmanagement.cellular QML submodule that SignalStrengthInfo.qml imports unconditionally. Without it the MobileShell QML namespace fails to load and preview boots to a black screen. Keep a minimal fallback module under tools/preview-stubs and install it only for local .prefix preview installs by default, with SHIFT_INSTALL_PREVIEW_QML_STUBS=AUTO/ON/OFF for explicit control. Add a CTest guard so qmldir entries stay backed by real files and the fallback remains tied to the QML import tree.
28 lines
1.2 KiB
Markdown
28 lines
1.2 KiB
Markdown
<!-- SPDX-FileCopyrightText: 2026 Marco Allegretti -->
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<!-- SPDX-License-Identifier: EUPL-1.2 -->
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# Preview-only QML stubs
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These stub modules satisfy QML imports that **upstream Plasma Mobile expects**
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but that are not provided by the QML packages shipped on the host distro used
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for preview/development.
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They are installed only for local preview prefixes by default:
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`SHIFT_INSTALL_PREVIEW_QML_STUBS=AUTO` enables installation when
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`CMAKE_INSTALL_PREFIX` ends in `.prefix`. Set it to `ON` to force installation
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for another prefix, or `OFF` to disable it. Production installs using normal
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system prefixes leave these stubs out.
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## Current stubs
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- `org/kde/plasma/networkmanagement/cellular/` — `CellularModemList`,
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`CellularModem`. Required by
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`components/mobileshell/qml/dataproviders/SignalStrengthInfo.qml`.
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openSUSE Tumbleweed's `plasma6-nm 6.6.4` package does not ship this
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QML submodule (only the cellular KCM `.so`). Without the stub the
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entire MobileShell QML namespace fails to load and the homescreen
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is blank.
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When the host distro starts providing a real module at the same import path,
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disable the local fallback by configuring with `SHIFT_INSTALL_PREVIEW_QML_STUBS=OFF`
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before comparing against the system module.
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