Greetd: Add a greeter

Modules/Greetd/GreetdMemory.qml

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+pragma Singleton
+pragma ComponentBehavior: Bound
+
+import QtCore
+import QtQuick
+import Quickshell
+import Quickshell.Io
+import qs.Common
+
+Singleton {
+    id: root
+
+    readonly property string greetCfgDir: Quickshell.env("DMS_GREET_CFG_DIR") || "/etc/greetd/.dms"
+    readonly property string sessionConfigPath: greetCfgDir + "/session.json"
+    readonly property string memoryFile: greetCfgDir + "/memory.json"
+
+    property string lastSessionId: ""
+    property string lastSuccessfulUser: ""
+    property bool isLightMode: false
+    property bool nightModeEnabled: false
+
+    Component.onCompleted: {
+        Quickshell.execDetached(["mkdir", "-p", greetCfgDir])
+        loadMemory()
+        loadSessionConfig()
+    }
+
+    function loadMemory() {
+        parseMemory(memoryFileView.text())
+    }
+
+    function loadSessionConfig() {
+        parseSessionConfig(sessionConfigFileView.text())
+    }
+
+    function parseSessionConfig(content) {
+        try {
+            if (content && content.trim()) {
+                const config = JSON.parse(content)
+                isLightMode = config.isLightMode !== undefined ? config.isLightMode : false
+                nightModeEnabled = config.nightModeEnabled !== undefined ? config.nightModeEnabled : false
+            }
+        } catch (e) {
+            console.warn("Failed to parse greeter session config:", e)
+        }
+    }
+
+    function parseMemory(content) {
+        try {
+            if (content && content.trim()) {
+                const memory = JSON.parse(content)
+                lastSessionId = memory.lastSessionId !== undefined ? memory.lastSessionId : ""
+                lastSuccessfulUser = memory.lastSuccessfulUser !== undefined ? memory.lastSuccessfulUser : ""
+            }
+        } catch (e) {
+            console.warn("Failed to parse greetd memory:", e)
+        }
+    }
+
+    function saveMemory() {
+        memoryFileView.setText(JSON.stringify({
+            "lastSessionId": lastSessionId,
+            "lastSuccessfulUser": lastSuccessfulUser
+        }, null, 2))
+    }
+
+    function setLastSessionId(id) {
+        lastSessionId = id || ""
+        saveMemory()
+    }
+
+    function setLastSuccessfulUser(username) {
+        lastSuccessfulUser = username || ""
+        saveMemory()
+    }
+
+    FileView {
+        id: memoryFileView
+        path: root.memoryFile
+        blockLoading: false
+        blockWrites: false
+        atomicWrites: true
+        watchChanges: false
+        printErrors: false
+        onLoaded: {
+            parseMemory(memoryFileView.text())
+        }
+    }
+
+    FileView {
+        id: sessionConfigFileView
+        path: root.sessionConfigPath
+        blockLoading: false
+        blockWrites: true
+        atomicWrites: false
+        watchChanges: false
+        printErrors: true
+        onLoaded: {
+            parseSessionConfig(sessionConfigFileView.text())
+        }
+        onLoadFailed: error => {
+            console.warn("Could not load greeter session config from", root.sessionConfigPath, "error:", error)
+        }
+    }
+}

Modules/Greetd/GreetdSettings.qml

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+pragma Singleton
+pragma ComponentBehavior: Bound
+
+import QtCore
+import QtQuick
+import Quickshell
+import Quickshell.Io
+import qs.Common
+
+Singleton {
+    id: root
+
+    readonly property string configPath: {
+        const greetCfgDir = Quickshell.env("DMS_GREET_CFG_DIR") || "/etc/greetd/.dms"
+        return greetCfgDir + "/settings.json"
+    }
+
+    property string currentThemeName: "blue"
+    property bool settingsLoaded: false
+    property string customThemeFile: ""
+    property string matugenScheme: "scheme-tonal-spot"
+    property bool use24HourClock: true
+    property bool useFahrenheit: false
+    property bool nightModeEnabled: false
+    property string weatherLocation: "New York, NY"
+    property string weatherCoordinates: "40.7128,-74.0060"
+    property bool useAutoLocation: false
+    property bool weatherEnabled: true
+    property string iconTheme: "System Default"
+    property bool useOSLogo: false
+    property string osLogoColorOverride: ""
+    property real osLogoBrightness: 0.5
+    property real osLogoContrast: 1
+    property string fontFamily: "Inter Variable"
+    property string monoFontFamily: "Fira Code"
+    property int fontWeight: Font.Normal
+    property real fontScale: 1.0
+    property real cornerRadius: 12
+    property string widgetBackgroundColor: "sch"
+    property string surfaceBase: "s"
+    property string lockDateFormat: ""
+    property bool lockScreenShowPowerActions: true
+    property var screenPreferences: ({})
+    property int animationSpeed: 2
+
+    readonly property string defaultFontFamily: "Inter Variable"
+    readonly property string defaultMonoFontFamily: "Fira Code"
+
+    function parseSettings(content) {
+        try {
+            if (content && content.trim()) {
+                const settings = JSON.parse(content)
+                currentThemeName = settings.currentThemeName !== undefined ? settings.currentThemeName : "blue"
+                customThemeFile = settings.customThemeFile !== undefined ? settings.customThemeFile : ""
+                matugenScheme = settings.matugenScheme !== undefined ? settings.matugenScheme : "scheme-tonal-spot"
+                use24HourClock = settings.use24HourClock !== undefined ? settings.use24HourClock : true
+                useFahrenheit = settings.useFahrenheit !== undefined ? settings.useFahrenheit : false
+                nightModeEnabled = settings.nightModeEnabled !== undefined ? settings.nightModeEnabled : false
+                weatherLocation = settings.weatherLocation !== undefined ? settings.weatherLocation : "New York, NY"
+                weatherCoordinates = settings.weatherCoordinates !== undefined ? settings.weatherCoordinates : "40.7128,-74.0060"
+                useAutoLocation = settings.useAutoLocation !== undefined ? settings.useAutoLocation : false
+                weatherEnabled = settings.weatherEnabled !== undefined ? settings.weatherEnabled : true
+                iconTheme = settings.iconTheme !== undefined ? settings.iconTheme : "System Default"
+                useOSLogo = settings.useOSLogo !== undefined ? settings.useOSLogo : false
+                osLogoColorOverride = settings.osLogoColorOverride !== undefined ? settings.osLogoColorOverride : ""
+                osLogoBrightness = settings.osLogoBrightness !== undefined ? settings.osLogoBrightness : 0.5
+                osLogoContrast = settings.osLogoContrast !== undefined ? settings.osLogoContrast : 1
+                fontFamily = settings.fontFamily !== undefined ? settings.fontFamily : defaultFontFamily
+                monoFontFamily = settings.monoFontFamily !== undefined ? settings.monoFontFamily : defaultMonoFontFamily
+                fontWeight = settings.fontWeight !== undefined ? settings.fontWeight : Font.Normal
+                fontScale = settings.fontScale !== undefined ? settings.fontScale : 1.0
+                cornerRadius = settings.cornerRadius !== undefined ? settings.cornerRadius : 12
+                widgetBackgroundColor = settings.widgetBackgroundColor !== undefined ? settings.widgetBackgroundColor : "sch"
+                surfaceBase = settings.surfaceBase !== undefined ? settings.surfaceBase : "s"
+                lockDateFormat = settings.lockDateFormat !== undefined ? settings.lockDateFormat : ""
+                lockScreenShowPowerActions = settings.lockScreenShowPowerActions !== undefined ? settings.lockScreenShowPowerActions : true
+                screenPreferences = settings.screenPreferences !== undefined ? settings.screenPreferences : ({})
+                animationSpeed = settings.animationSpeed !== undefined ? settings.animationSpeed : 2
+                settingsLoaded = true
+
+                if (typeof Theme !== "undefined") {
+                    Theme.applyGreeterTheme(currentThemeName)
+                }
+            }
+        } catch (e) {
+            console.warn("Failed to parse greetd settings:", e)
+        }
+    }
+
+    function getEffectiveLockDateFormat() {
+        return lockDateFormat && lockDateFormat.length > 0 ? lockDateFormat : Locale.LongFormat
+    }
+
+    function getFilteredScreens(componentId) {
+        const prefs = screenPreferences && screenPreferences[componentId] || ["all"]
+        if (prefs.includes("all")) {
+            return Quickshell.screens
+        }
+        return Quickshell.screens.filter(screen => prefs.includes(screen.name))
+    }
+
+    FileView {
+        id: settingsFile
+        path: root.configPath
+        blockLoading: false
+        blockWrites: true
+        atomicWrites: false
+        watchChanges: false
+        printErrors: true
+        onLoaded: {
+            parseSettings(settingsFile.text())
+        }
+    }
+}

Modules/Greetd/GreeterState.qml

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+import QtQuick
+import Quickshell
+pragma Singleton
+pragma ComponentBehavior: Bound
+
+Singleton {
+    id: root
+
+    property string passwordBuffer: ""
+    property string username: ""
+    property string usernameInput: ""
+    property bool showPasswordInput: false
+    property string selectedSession: ""
+    property string pamState: ""
+    property bool unlocking: false
+
+    property var sessionList: []
+    property var sessionExecs: []
+    property int currentSessionIndex: 0
+
+    function reset() {
+        showPasswordInput = false
+        username = ""
+        usernameInput = ""
+        passwordBuffer = ""
+        pamState = ""
+    }
+}

Modules/Greetd/GreeterSurface.qml

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+import QtQuick
+import Quickshell
+import Quickshell.Wayland
+import Quickshell.Services.Greetd
+
+WlSessionLockSurface {
+    id: root
+
+    required property WlSessionLock lock
+
+    color: "transparent"
+
+    GreeterContent {
+        anchors.fill: parent
+        screenName: root.screen?.name ?? ""
+        sessionLock: root.lock
+    }
+}

Modules/Greetd/README.md

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+# Dank (dms) Greeter
+
+A greeter for [greetd](https://github.com/kennylevinsen/greetd) that follows the aesthetics of the dms lock screen.
+
+## Features
+
+- **Multi user**: Login with any system user
+- **dms sync**: Sync settings with dms for consistent styling between shell and greeter
+- **niri or Hyprland**: Use either niri or Hyprland for the greeter's compositor.
+- **Custom PAM**: Supports custom PAM configuration in `/etc/pam.d/dankshell`
+- **Session Memory**: Remembers last selected session and user
+
+## Installation
+
+The easiest thing is to run `dms greeter install` or `dms` for interactive installation.
+
+Manual installation:
+1. Install `greetd` (in most distro's standard repositories)
+2. Copy `assets/dms-niri.kdl` or `assets/dms-hypr.conf` to `/etc/greetd`
+  - niri if you want to run the greeter under niri, hypr if you want to run the greeter under Hyprland
+3. Copy `assets/greet-niri.sh` or `assets/greet-hyprland.sh` to `/etc/greetd/start-dms.sh`
+4. Edit `/etc/greetd/dms-niri.kdl` or `/etc/greetd/dms-hypr.conf` and replace `_DMS_PATH_` with the absolute path to dms, e.g. `/home/joecool/.config/quickshell/dms`
+5. Edit or create `/etc/greetd/config.toml` 
+```toml
+[terminal]
+# The VT to run the greeter on. Can be "next", "current" or a number
+# designating the VT.
+vt = 1
+
+# The default session, also known as the greeter.
+[default_session]
+
+# `agreety` is the bundled agetty/login-lookalike. You can replace `/bin/sh`
+# with whatever you want started, such as `sway`.
+
+# The user to run the command as. The privileges this user must have depends
+# on the greeter. A graphical greeter may for example require the user to be
+# in the `video` group.
+user = "greeter"
+
+command = "/etc/greetd/start-dms.sh"%
+```
+
+Enable the greeter with `sudo systemctl enable greetd`
+
+## Usage
+
+To run dms in greeter mode you just need to set `DMS_RUN_GREETER=1` in the environment.
+
+```bash
+DMS_RUN_GREETER=1 qs -p /path/to/dms
+```
+
+### Configuration
+
+#### Compositor
+
+You can configure compositor specific settings such as outputs/displays the same as you would in niri or Hyprland.
+
+Simply edit `/etc/greetd/dms-niri.kdl` or `/etc/greetd/dms-hypr.conf` to change compositor settings for the greeter
+
+#### Personalization
+
+Wallpapers and themes and weather and clock formats and things are a TODO on the documentation, but it's configured exactly the same as dms.
+
+You can synchronize those configurations with a specific user if you want greeter settings to always mirror the shell.
+
+```bash
+# For core settings (theme, clock formats, etc)
+sudo ln -sf ~/.config/DankMaterialShell/settings.json /etc/greetd/.dms/settings.json
+# For state (mainly you would configure wallpaper in this file)
+sudo ln -sf ~/.local/state/DankMaterialShell/session.json /etc/greetd/.dms/session.json
+# For wallpaper based theming
+sudo ln -sf ~/.cache/quickshell/dankshell/dms-colors.json /etc/greetd/.dms/dms-colors.json
+```
+
+You can override the configuration path with the `DMS_GREET_CFG_DIR` environment variable, the default is `/etc/greetd/.dms`
+
+It should be writable by the greeter user.

Modules/Greetd/assets/dms-hypr.conf

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+env = DMS_RUN_GREETER,1
+env = QT_QPA_PLATFORM,wayland
+env = QT_WAYLAND_DISABLE_WINDOWDECORATION,1
+env = EGL_PLATFORM,gbm
+
+exec = sh -c "qs -p _DMS_PATH_; hyprctl dispatch exit"

Modules/Greetd/assets/dms-niri.kdl

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+hotkey-overlay {
+    skip-at-startup
+}
+
+environment {
+    DMS_RUN_GREETER "1"
+    QT_QPA_PLATFORM "wayland"
+    QT_WAYLAND_DISABLE_WINDOWDECORATION "1"
+}
+
+spawn-at-startup "sh" "-c" "qs -p _DMS_PATH_; niri msg action quit --skip-confirmation"
+
+debug {
+  keep-max-bpc-unchanged
+}
+
+gestures {
+   hot-corners {
+     off
+   }
+}

Modules/Greetd/assets/greet-hyprland.sh

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+#!/bin/sh
+
+EGL_PLATFORM=gbm Hyprland -c /etc/greetd/dms-hypr.conf

Modules/Greetd/assets/greet-niri.sh

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+#!/bin/sh
+
+EGL_PLATFORM=gbm niri -c /etc/greetd/dms-niri.kdl