Issues updating SDDM theme since KDE 6 update

Talzanar

I recently updated to KDE 6 via Nobara/Fedora. The update has broken all my SDDM theme's. From what I can tell it seems this update was big, it seems to have changed how these files are edited and what modules they require.

I attempted to take one of the theme's (Wargames https://store.kde.org/s/KDE Store/p/2072906).

I started by opening the project main.qml and adjusted the modules it was looking for as my original error was 'QtQuickControls version 1.4 is not installed'. With the changes the error changed to Main.qml:224:9 TextFeild is not a type. This appears to be a QtQuickConrols.Style issue as its looking for a older module.

I tied to add import QtQuick.Controls.Universal as this seems to be the new style module and this seems to have actually solved the Qt.Quick.Controls.Styles issue but now I am left with Main.qml:469:29 Cannot assign to non exsistant property"index" This is in reference to

//ComboBox
Column {
id : entryColumn10
anchors.left : parent.left
topPadding : comboboxtoppadding
leftPadding : comboboxleftpadding

            ComboBox {
                        id : session
                        color : comboboxcolor
                        borderColor : comboboxbordercolor
                        hoverColor : comboboxhovercolor
                        focusColor : comboboxfocuscolor
                        textColor : doscolor
                        menuColor : comboboxmenucolor
                        arrowColor: comboboxarrowcolor
                        width : comboboxwidth
                        height : comboboxheight
                        visible : comboboxvisible
                        font.pointSize : dosfontsize
                        font.italic : false
                        font.family : loginfont.name
                        arrowIcon : comboboximage
                        model : sessionModel
           This line->  index : sessionModel.lastIndex
                        KeyNavigation.backtab : shutdownButton
                        KeyNavigation.tab : loginButton

At this point I am now officially out of my depth here haha! Is there some kind soul who can assist as even the original Nobara theme is broken, the colours show as only WHITE but the SDDM still loads.

Talzanar

@Talzanar UPDATE

I added the following import to the theme -

import QtQuick 2.15
import QtQuick.Layouts 1.15
import QtQuick.Controls 2.15 as QQC2
import QtQuick.Controls.Universal
import SddmComponents 2.0
import Qt5Compat.GraphicalEffects

This actually allows the SDDM to pretend to boot however here is the output of testing it.

Socket error:  "QLocalSocket::connectToServer: Invalid name"
Loading file:///usr/share/sddm/themes/WarGames/Main.qml...
file:///usr/lib64/qt6/qml/SddmComponents/ComboBox.qml:107:9: QML QQuickImage: Cannot open: file:///usr/lib64/qt6/qml/SddmComponents/Arrow.svg
file:///usr/share/sddm/themes/WarGames/Main.qml:406:21: QML QQuickImage: Cannot open: file:///usr/share/sddm/themes/WarGames/None.svg
file:///usr/share/sddm/themes/WarGames/Main.qml:355:21: QML QQuickImage: Cannot open: file:///usr/share/sddm/themes/WarGames/None.svg
file:///usr/lib64/qt6/qml/SddmComponents/Background.qml:35:5: QML QQuickImage: Cannot open: file:///usr/lib64/qt6/qml/SddmComponents/Background.png
file:///usr/lib64/qt6/qml/SddmComponents/Background.qml:35:5: QML QQuickImage: Cannot open: file:///usr/lib64/qt6/qml/SddmComponents/AmigaOSBackground.png
file:///usr/share/sddm/themes/WarGames/Main.qml:155:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
file:///usr/share/sddm/themes/WarGames/Main.qml:283: ReferenceError: passwordtextboximage is not defined
file:///usr/share/sddm/themes/WarGames/Main.qml:307: ReferenceError: loginbuttonup is not defined
Loading file:///usr/share/sddm/themes/WarGames/Main.qml...
file:///usr/lib64/qt6/qml/SddmComponents/ComboBox.qml:107:9: QML QQuickImage: Cannot open: file:///usr/lib64/qt6/qml/SddmComponents/Arrow.svg
file:///usr/share/sddm/themes/WarGames/Main.qml:406:21: QML QQuickImage: Cannot open: file:///usr/share/sddm/themes/WarGames/None.svg
file:///usr/share/sddm/themes/WarGames/Main.qml:355:21: QML QQuickImage: Cannot open: file:///usr/share/sddm/themes/WarGames/None.svg
file:///usr/lib64/qt6/qml/SddmComponents/Background.qml:35:5: QML QQuickImage: Cannot open: file:///usr/lib64/qt6/qml/SddmComponents/Background.png
file:///usr/lib64/qt6/qml/SddmComponents/Background.qml:35:5: QML QQuickImage: Cannot open: file:///usr/lib64/qt6/qml/SddmComponents/AmigaOSBackground.png
file:///usr/share/sddm/themes/WarGames/Main.qml:155:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
file:///usr/share/sddm/themes/WarGames/Main.qml:283: ReferenceError: passwordtextboximage is not defined
file:///usr/share/sddm/themes/WarGames/Main.qml:307: ReferenceError: loginbuttonup is not defined
qt.qml.context: file:///usr/share/sddm/themes/WarGames/Main.qml:288:21 Parameter "event" is not declared. Injection of parameters into signal handlers is deprecated. Use JavaScript functions with formal parameters instead.
qt.qml.context: file:///usr/share/sddm/themes/WarGames/Main.qml:288:21 Parameter "event" is not declared. Injection of parameters into signal handlers is deprecated. Use JavaScript functions with formal parameters instead.

SGaist

Hi and welcome to devnet,

That's something you should check with the KDE folks.

As for the update, it was likely the mega update that brought the switch from KDE to Qt 6.

Talzanar

@SGaist I have been researching this all day and yes the KDE 6 upgrade is huge, It now needs you to format in Javascript - something I have no experience in so my little goal of fixing my favourite SDDM theme has gone to hell haha.

Thanks for the reply.

SGaist

You should check with the theme author, they might want to update it and give you a hand with that task.