windows: drop the qt decoration env, add a title bars toggle and go frameless for own chrome

fixes #3679
fixes #3572

flake.lock

@@ -3,11 +3,11 @@
     "dank-qml-common": {
       "flake": false,
       "locked": {
-        "lastModified": 1791337282,
-        "narHash": "sha256-qOVjYFerd7EJ4Uasy98EbIEC6mD7VP/CtXYT41+t6xw=",
+        "lastModified": 1791341415,
+        "narHash": "sha256-5yyGoWt0YcLvqWQacJIJfsxkSZROQZVnwui6UZz5FIs=",
         "owner": "AvengeMedia",
         "repo": "dank-qml-common",
-        "rev": "97efc1729da5697dee93cfe707c4cd9dab83785d",
+        "rev": "66e28f5d322d4c385639c9648cbbf1ec29cfd0fc",
         "type": "github"
       },
       "original": {

quickshell/Common/SettingsData.qml

@@ -175,6 +175,7 @@ Singleton {
     property string matugenTargetMonitor: Spec.SPEC.matugenTargetMonitor.def
     property real popupTransparency: Spec.SPEC.popupTransparency.def
     property bool floatingWindowSyncGlobal: Spec.SPEC.floatingWindowSyncGlobal.def
+    property bool floatingWindowTitleBars: Spec.SPEC.floatingWindowTitleBars.def
     property real floatingWindowTransparency: Spec.SPEC.floatingWindowTransparency.def
     property bool floatingWindowForegroundLayers: Spec.SPEC.floatingWindowForegroundLayers.def
     property real floatingWindowForegroundTransparency: Spec.SPEC.floatingWindowForegroundTransparency.def

quickshell/Common/settings/SettingsSpec.js

@@ -68,6 +68,9 @@ var LOCAL_SPEC = {
     floatingWindowSyncGlobal: {
         def: true
     },
+    floatingWindowTitleBars: {
+        def: true
+    },
     floatingWindowTransparency: {
         def: 1.0,
         coerce: Util.percentToUnit

quickshell/Modules/Greetd/assets/greet-hyprland.sh

@@ -2,7 +2,6 @@
 
 export XDG_SESSION_TYPE=wayland
 export QT_QPA_PLATFORM=wayland
-export QT_WAYLAND_DISABLE_WINDOWDECORATION=1
 export EGL_PLATFORM=gbm
 if command -v start-hyprland >/dev/null 2>&1; then
     exec start-hyprland -- -c /etc/greetd/dms-hypr.lua

quickshell/Modules/Greetd/assets/greet-niri.sh

@@ -2,7 +2,6 @@
 
 export XDG_SESSION_TYPE=wayland
 export QT_QPA_PLATFORM=wayland
-export QT_WAYLAND_DISABLE_WINDOWDECORATION=1
 export EGL_PLATFORM=gbm
 
 exec niri -c /etc/greetd/dms-niri.kdl

quickshell/Modules/Settings/ThemeSurfacesTab.qml

@@ -389,6 +389,16 @@ Column {
             }
         }
 
+        SettingsToggleRow {
+            tab: "theme"
+            tags: ["floating", "window", "title", "bar", "header", "csd", "decoration", "compositor", "kwin", "controls"]
+            settingKey: "floatingWindowTitleBars"
+            text: I18n.tr("Title bars")
+            description: I18n.tr("Off lets the compositor decorate DMS windows. Open windows update when reopened.", "theme floating windows section, title bars toggle description")
+            checked: SettingsData.floatingWindowTitleBars
+            onToggled: checked => SettingsData.set("floatingWindowTitleBars", checked)
+        }
+
         SettingsToggleRow {
             tab: "theme"
             tags: ["floating", "window", "tile", "tiling", "compositor", "rule", "niri", "hyprland", "mango"]

quickshell/shell.qml

@@ -2,7 +2,6 @@
 //@ pragma Env QT_MEDIA_BACKEND=ffmpeg
 //@ pragma Env QT_FFMPEG_DECODING_HW_DEVICE_TYPES=vaapi
 //@ pragma Env QT_FFMPEG_ENCODING_HW_DEVICE_TYPES=vaapi
-//@ pragma Env QT_WAYLAND_DISABLE_WINDOWDECORATION=1
 //@ pragma Env QT_QUICK_CONTROLS_STYLE=Material
 //@ pragma UseQApplication
 //@ pragma AppId com.danklinux.dms
@@ -37,6 +36,7 @@ ShellRoot {
         DC.Host.cache = CacheData;
         DC.Host.files = FilesService;
         DC.Host.hyprlandFocusGrab = Qt.binding(() => CompositorService.useHyprlandFocusGrab);
+        DC.Host.ownWindowDecorations = Qt.binding(() => SettingsData.floatingWindowTitleBars);
         void IconThemeService.ready;
         if (entrypoint.runGreeter)
             return;

quickshell/translations/settings_search_index.json

@@ -1043,28 +1043,30 @@
     "tabIndex": -1,
     "category": "Interface style",
     "keywords": [
-      "adds",
       "authentication",
       "compositor",
+      "decorate",
       "floating",
       "foreground",
       "interface",
+      "lets",
       "notepad",
       "opacity",
       "open",
       "override",
       "polkit",
-      "rule",
+      "reopened",
       "settings",
       "style",
       "tile",
       "tiling",
       "transparency",
+      "update",
       "window",
       "windows"
     ],
     "page": "theme_surfaces",
-    "description": "Adds a compositor window rule so DMS windows such as Settings open floating"
+    "description": "Off lets the compositor decorate DMS windows. Open windows update when reopened."
   },
   {
     "section": "focusRingEnabled",
@@ -2552,6 +2554,39 @@
     ],
     "page": "notifications"
   },
+  {
+    "section": "floatingWindowTitleBars",
+    "label": "Title bars",
+    "tabIndex": -1,
+    "category": "Interface style",
+    "keywords": [
+      "bar",
+      "bars",
+      "compositor",
+      "controls",
+      "csd",
+      "decorate",
+      "decoration",
+      "floating",
+      "header",
+      "interface",
+      "kwin",
+      "lets",
+      "open",
+      "panel",
+      "reopened",
+      "statusbar",
+      "style",
+      "taskbar",
+      "title",
+      "topbar",
+      "update",
+      "window",
+      "windows"
+    ],
+    "page": "theme_surfaces",
+    "description": "Off lets the compositor decorate DMS windows. Open windows update when reopened."
+  },
   {
     "section": "wallpaperTransition",
     "label": "Transition",