Bump version to 0.16

The width is set to the maximum/minimum of preset widths.

Makefile

@@ -3,7 +3,7 @@ CHECKS := true
 
 .PHONY: *
 
-build: lint tests
+build: lint test
 	tsc -p ./src/main --outFile ./package/contents/code/main.js
 	mkdir -p ./package/contents/config
 	./run-ts.sh ./src/generators/config > ./package/contents/config/main.xml
@@ -19,7 +19,7 @@ endif
 lint-fix: npm-install
 	npx eslint ./src --fix
 
-tests:
+test:
 ifeq (${CHECKS}, true)
 	./run-ts.sh ./src/tests
 endif

package-lock.json

@@ -4,6 +4,7 @@
   "requires": true,
   "packages": {
     "": {
+      "name": "karousel",
       "devDependencies": {
         "eslint": "^9.24.0",
         "typescript-eslint": "^8.30.1"
@@ -999,10 +1000,11 @@
       "dev": true
     },
     "node_modules/js-yaml": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.1.0.tgz",
-      "integrity": "sha512-wpxZs9NoxZaJESJGIZTyDEaYpl0FKSA+FB9aJiyemKhMwkxQg63h4T1KJgUGHpTqPDNRcmmYLugrRjJlBtWvRA==",
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.1.1.tgz",
+      "integrity": "sha512-qQKT4zQxXl8lLwBtHMWwaTcGfFOZviOJet3Oy/xmGk2gZH677CJM9EvtfdSkgWcATZhj/55JZ0rmy3myCT5lsA==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
         "argparse": "^2.0.1"
       },

package/contents/ui/config.ui

@@ -32,7 +32,7 @@
                                         <item>
                                             <widget class="QCheckBox" name="kcfg_cursorFollowsFocus">
                                                 <property name="text">
-                                                    <string>Cursor follows focus</string>
+                                                    <string>Cursor follows focus (experimental)</string>
                                                 </property>
                                                 <property name="toolTip">
                                                     <string>When a window gains focus, move the cursor to it</string>
@@ -149,14 +149,14 @@
                                         <item>
                                             <widget class="QRadioButton" name="kcfg_tiledKeepBelow">
                                                 <property name="text">
-                                                    <string>Keep tiled windows below</string>
+                                                    <string>Set "Keep Below" for tiled windows</string>
                                                 </property>
                                             </widget>
                                         </item>
                                         <item>
                                             <widget class="QRadioButton" name="kcfg_floatingKeepAbove">
                                                 <property name="text">
-                                                    <string>Keep floating windows above</string>
+                                                    <string>Set "Keep Above" for floating windows</string>
                                                 </property>
                                             </widget>
                                         </item>
@@ -458,6 +458,27 @@
                             <string>Window Rules</string>
                         </attribute>
                         <layout class="QVBoxLayout">
+                            <item>
+                                <layout class="QHBoxLayout">
+                                    <item>
+                                        <widget class="QLabel" name="label_desktops">
+                                            <property name="text">
+                                                <string>Tiled desktops:</string>
+                                            </property>
+                                            <property name="wordWrap">
+                                                <bool>true</bool>
+                                            </property>
+                                        </widget>
+                                    </item>
+                                    <item>
+                                        <widget class="QLineEdit" name="kcfg_tiledDesktops">
+                                            <property name="toolTip">
+                                                <string>Regex string to match desktops by desktop name"</string>
+                                            </property>
+                                        </widget>
+                                    </item>
+                                </layout>
+                            </item>
                             <item>
                                 <widget class="QPlainTextEdit" name="kcfg_windowRules">
                                     <property name="tabChangesFocus">

package/contents/ui/main.qml

@@ -16,6 +16,16 @@ Item {
         qmlBase.karouselInstance.destroy();
     }
 
+    Notification {
+        id: notificationInvalidTiledDesktops
+        componentName: "plasma_workspace"
+        eventId: "notification"
+        title: "Karousel"
+        text: "Your Tiled Desktops regex is malformed, please review your Karousel configuration"
+        flags: Notification.Persistent
+        urgency: Notification.HighUrgency
+    }
+
     Notification {
         id: notificationInvalidWindowRules
         componentName: "plasma_workspace"

package/metadata.json

@@ -9,7 +9,7 @@
             "Name": "Peter Fajdiga"
         }],
         "Id": "karousel",
-        "Version": "0.14",
+        "Version": "0.16",
         "License": "GPLv3",
         "Website": "https://github.com/peterfajdiga/karousel",
         "BugReportUrl": "https://github.com/peterfajdiga/karousel/issues"

src/extern/global.d.ts

@@ -2,6 +2,7 @@ declare const Qt: Qt;
 declare const KWin: KWin;
 declare const Workspace: Workspace;
 declare const qmlBase: QmlObject;
+declare const notificationInvalidTiledDesktops: Notification;
 declare const notificationInvalidWindowRules: Notification;
 declare const notificationInvalidPresetWidths: Notification;
 declare const moveCursorToFocus: DBusCall;

src/lib/behavior/columnResizer/ContextualResizer.ts

@@ -13,8 +13,8 @@ class ContextualResizer {
             return;
         }
 
-        const leftVisibleColumn = grid.getLeftmostVisibleColumn(visibleRange, true);
-        const rightVisibleColumn = grid.getRightmostVisibleColumn(visibleRange, true);
+        const leftVisibleColumn = grid.getLeftmostVisibleColumn(visibleRange);
+        const rightVisibleColumn = grid.getRightmostVisibleColumn(visibleRange);
         if (leftVisibleColumn === null || rightVisibleColumn === null) {
             console.assert(false); // should at least see self
             return;
@@ -50,8 +50,8 @@ class ContextualResizer {
             return;
         }
 
-        const leftVisibleColumn = grid.getLeftmostVisibleColumn(visibleRange, true);
-        const rightVisibleColumn = grid.getRightmostVisibleColumn(visibleRange, true);
+        const leftVisibleColumn = grid.getLeftmostVisibleColumn(visibleRange);
+        const rightVisibleColumn = grid.getRightmostVisibleColumn(visibleRange);
         if (leftVisibleColumn === null || rightVisibleColumn === null) {
             console.assert(false); // should at least see self
             return;
@@ -86,4 +86,22 @@ class ContextualResizer {
         column.setWidth(newWidth, true);
         desktop.scrollCenterVisible(column);
     }
+
+    public maximizeWidth(column: Column) {
+        const grid = column.grid;
+        const desktop = grid.desktop;
+        const presetWidths = this.presetWidths.getWidths(column.getMinWidth(), column.getMaxWidth());
+        const maxWidth = presetWidths[presetWidths.length-1];
+        column.setWidth(maxWidth, true);
+        desktop.scrollCenterVisible(column);
+    }
+
+    public minimizeWidth(column: Column) {
+        const grid = column.grid;
+        const desktop = grid.desktop;
+        const presetWidths = this.presetWidths.getWidths(column.getMinWidth(), column.getMaxWidth());
+        const minWidth = presetWidths[0];
+        column.setWidth(minWidth, true);
+        desktop.scrollCenterVisible(column);
+    }
 }

src/lib/behavior/columnResizer/RawResizer.ts

@@ -28,4 +28,16 @@ class RawResizer {
         }
         column.setWidth(newWidth, true);
     }
+
+    public maximizeWidth(column: Column) {
+        const presetWidths = this.presetWidths.getWidths(column.getMinWidth(), column.getMaxWidth());
+        const maxWidth = presetWidths[presetWidths.length-1];
+        column.setWidth(maxWidth, true);
+    }
+
+    public minimizeWidth(column: Column) {
+        const presetWidths = this.presetWidths.getWidths(column.getMinWidth(), column.getMaxWidth());
+        const minWidth = presetWidths[0];
+        column.setWidth(minWidth, true);
+    }
 }

src/lib/config/config.ts

@@ -25,4 +25,5 @@ interface Config {
     tiledKeepBelow: boolean;
     floatingKeepAbove: boolean;
     windowRules: string;
+    tiledDesktops: string;
 }

src/lib/config/definition.ts

@@ -31,6 +31,11 @@ const defaultWindowRules = `[
         "class": "(org\\\\.kde\\\\.)?yakuake",
         "tile": false
     },
+    {
+        "class": "wl-copy|wl-paste",
+        "caption": "wl-clipboard",
+        "tile": false
+    },
     {
         "class": "steam",
         "caption": "Steam Big Picture Mode",
@@ -189,4 +194,9 @@ const configDef = [
         type: "String",
         default: defaultWindowRules,
     },
+    {
+        name: "tiledDesktops",
+        type: "String",
+        default: ".*",
+    },
 ];

src/lib/extern/kwin.ts

@@ -102,6 +102,7 @@ interface KwinDesktop {
     __brand: "KwinDesktop";
 
     readonly id: string;
+    readonly name: string;
 }
 
 interface ShortcutHandler extends QmlObject {

src/lib/extern/qt.ts

@@ -28,10 +28,6 @@ interface QmlRect {
     y: number;
     width: number;
     height: number;
-    readonly top: number;
-    readonly bottom: number; // top + height
-    readonly left: number;
-    readonly right: number; // left + width
 }
 
 interface QmlSize {

src/lib/keyBindings/Actions.ts

@@ -62,7 +62,11 @@ class Actions {
     };
 
     public readonly focusStart = (cm: ClientManager, dm: DesktopManager) => {
-        const grid = dm.getCurrentDesktop().grid;
+        const desktop = dm.getCurrentDesktop();
+        if (desktop === undefined) {
+            return;
+        }
+        const grid = desktop.grid;
         const firstColumn = grid.getFirstColumn();
         if (firstColumn === null) {
             return;
@@ -71,7 +75,11 @@ class Actions {
     };
 
     public readonly focusEnd = (cm: ClientManager, dm: DesktopManager) => {
-        const grid = dm.getCurrentDesktop().grid;
+        const desktop = dm.getCurrentDesktop();
+        if (desktop === undefined) {
+            return;
+        }
+        const grid = desktop.grid;
         const lastColumn = grid.getLastColumn();
         if (lastColumn === null) {
             return;
@@ -184,6 +192,15 @@ class Actions {
         this.config.columnResizer.decreaseWidth(column);
     };
 
+    public readonly columnWidthMaximize = (cm: ClientManager, dm: DesktopManager, window: Window, column: Column, grid: Grid) => {
+        this.config.columnResizer.maximizeWidth(column);
+    };
+
+
+    public readonly columnWidthMinimize = (cm: ClientManager, dm: DesktopManager, window: Window, column: Column, grid: Grid) => {
+        this.config.columnResizer.minimizeWidth(column);
+    };
+
     public readonly cyclePresetWidths = (cm: ClientManager, dm: DesktopManager, window: Window, column: Column, grid: Grid) => {
         const nextWidth = this.config.presetWidths.next(column.getWidth(), column.getMinWidth(), column.getMaxWidth());
         column.setWidth(nextWidth, true);
@@ -196,8 +213,11 @@ class Actions {
 
     public readonly columnsWidthEqualize = (cm: ClientManager, dm: DesktopManager) => {
         const desktop = dm.getCurrentDesktop();
+        if (desktop === undefined) {
+            return;
+        }
         const visibleRange = desktop.getCurrentVisibleRange();
-        const visibleColumns = Array.from(desktop.grid.getVisibleColumns(visibleRange, true));
+        const visibleColumns = Array.from(desktop.grid.getVisibleColumns(visibleRange));
 
         const availableSpace = desktop.tilingArea.width;
         const gapsWidth = desktop.grid.config.gapsInnerHorizontal * (visibleColumns.length-1);
@@ -219,7 +239,7 @@ class Actions {
             return;
         }
 
-        const currentVisibleColumns = Array.from(grid.getVisibleColumns(visibleRange, true));
+        const currentVisibleColumns = Array.from(grid.getVisibleColumns(visibleRange));
         console.assert(currentVisibleColumns.includes(focusedColumn), "should at least contain the focused column");
 
         const targetColumn = grid.getLeftColumn(currentVisibleColumns[0]);
@@ -246,7 +266,7 @@ class Actions {
             return;
         }
 
-        const currentVisibleColumns = Array.from(grid.getVisibleColumns(visibleRange, true));
+        const currentVisibleColumns = Array.from(grid.getVisibleColumns(visibleRange));
         console.assert(currentVisibleColumns.includes(focusedColumn), "should at least contain the focused column");
 
         const targetColumn = grid.getRightColumn(currentVisibleColumns[currentVisibleColumns.length-1]);
@@ -297,11 +317,18 @@ class Actions {
     };
 
     private readonly gridScroll = (desktopManager: DesktopManager, amount: number) => {
-        desktopManager.getCurrentDesktop().adjustScroll(amount, false);
+        const desktop = desktopManager.getCurrentDesktop();
+        if (desktop !== undefined) {
+            desktop.adjustScroll(amount, false);
+        }
     };
 
     public readonly gridScrollStart = (cm: ClientManager, dm: DesktopManager) => {
-        const grid = dm.getCurrentDesktop().grid;
+        const desktop = dm.getCurrentDesktop();
+        if (desktop === undefined) {
+            return;
+        }
+        const grid = desktop.grid;
         const firstColumn = grid.getFirstColumn();
         if (firstColumn === null) {
             return;
@@ -310,7 +337,11 @@ class Actions {
     };
 
     public readonly gridScrollEnd = (cm: ClientManager, dm: DesktopManager) => {
-        const grid = dm.getCurrentDesktop().grid;
+        const desktop = dm.getCurrentDesktop();
+        if (desktop === undefined) {
+            return;
+        }
+        const grid = desktop.grid;
         const lastColumn = grid.getLastColumn();
         if (lastColumn === null) {
             return;
@@ -328,8 +359,12 @@ class Actions {
     };
 
     public readonly gridScrollLeftColumn = (cm: ClientManager, dm: DesktopManager) => {
-        const grid = dm.getCurrentDesktop().grid;
-        const column = grid.getLeftmostVisibleColumn(grid.desktop.getCurrentVisibleRange(), true);
+        const desktop = dm.getCurrentDesktop();
+        if (desktop === undefined) {
+            return;
+        }
+        const grid = desktop.grid;
+        const column = grid.getLeftmostVisibleColumn(grid.desktop.getCurrentVisibleRange());
         if (column === null) {
             return;
         }
@@ -343,8 +378,12 @@ class Actions {
     };
 
     public readonly gridScrollRightColumn = (cm: ClientManager, dm: DesktopManager) => {
-        const grid = dm.getCurrentDesktop().grid;
-        const column = grid.getRightmostVisibleColumn(grid.desktop.getCurrentVisibleRange(), true);
+        const desktop = dm.getCurrentDesktop();
+        if (desktop === undefined) {
+            return;
+        }
+        const grid = desktop.grid;
+        const column = grid.getRightmostVisibleColumn(grid.desktop.getCurrentVisibleRange());
         if (column === null) {
             return;
         }
@@ -362,7 +401,11 @@ class Actions {
     };
 
     public readonly focus = (columnIndex: number, cm: ClientManager, dm: DesktopManager) => {
-        const grid = dm.getCurrentDesktop().grid;
+        const desktop = dm.getCurrentDesktop();
+        if (desktop === undefined) {
+            return;
+        }
+        const grid = desktop.grid;
         const targetColumn = grid.getColumnAtIndex(columnIndex);
         if (targetColumn === null) {
             return;
@@ -396,7 +439,11 @@ class Actions {
         if (kwinDesktop === undefined) {
             return;
         }
-        const newGrid = dm.getDesktopInCurrentActivity(kwinDesktop).grid;
+        const newDesktop = dm.getDesktopInCurrentActivity(kwinDesktop);
+        if (newDesktop === undefined) {
+            return;
+        }
+        const newGrid = newDesktop.grid;
         if (newGrid === null || newGrid === oldGrid) {
             return;
         }
@@ -408,7 +455,11 @@ class Actions {
         if (kwinDesktop === undefined) {
             return;
         }
-        const newGrid = dm.getDesktopInCurrentActivity(kwinDesktop).grid;
+        const newDesktop = dm.getDesktopInCurrentActivity(kwinDesktop);
+        if (newDesktop === undefined) {
+            return;
+        }
+        const newGrid = newDesktop.grid;
         if (newGrid === null || newGrid === oldGrid) {
             return;
         }
@@ -422,12 +473,14 @@ namespace Actions {
         presetWidths: {
             next: (currentWidth: number, minWidth: number, maxWidth: number) => number;
             prev: (currentWidth: number, minWidth: number, maxWidth: number) => number
-};
+        };
         columnResizer: ColumnResizer;
     }
 
     export interface ColumnResizer {
         increaseWidth(column: Column): void;
         decreaseWidth(column: Column): void;
+        maximizeWidth(column: Column): void;
+        minimizeWidth(column: Column): void;
     }
 }

src/lib/keyBindings/definition.ts

@@ -146,6 +146,16 @@ function getKeyBindings(world: World, actions: Actions): KeyBinding[] {
             defaultKeySequence: "Meta+Ctrl+-",
             action: () => world.doIfTiledFocused(actions.columnWidthDecrease),
         },
+        {
+            name: "column-width-maximize",
+            description: "Increase column width to maximum",
+            action: () => world.doIfTiledFocused(actions.columnWidthMaximize),
+        },
+        {
+            name: "column-width-minimize",
+            description: "Decrease column width to minimum",
+            action: () => world.doIfTiledFocused(actions.columnWidthMinimize),
+        },
         {
             name: "cycle-preset-widths",
             description: "Cycle through preset column widths",

src/lib/layout/Column.ts

@@ -79,7 +79,7 @@ class Column {
     public getMinWidth() {
         let maxMinWidth = Column.minWidth;
         for (const window of this.windows.iterator()) {
-            const minWidth = window.client.kwinClient.minSize.width;
+            const minWidth = window.client.kwinClient.minSize.width.ceil();
             if (minWidth > maxMinWidth) {
                 maxMinWidth = minWidth;
             }

src/lib/layout/Desktop.ts

@@ -141,8 +141,20 @@ class Desktop {
         this.setScroll(this.gestureScrollXInitial + this.config.gestureScrollStep * amount, false);
     }
 
-    public gestureScrollFinish() {
+    public gestureScrollFinish(focusedWindow: Window|null) {
+        const scrolledRight = this.scrollX > this.gestureScrollXInitial!;
         this.gestureScrollXInitial = null;
+
+        const visibleRange = this.getCurrentVisibleRange();
+        if (focusedWindow !== null && !Range.contains(visibleRange, focusedWindow.column)) {
+            // the focused window is no longer visible, find a new window to focus
+            const focusTargetColumn = scrolledRight ?
+                this.grid.getLeftmostVisibleColumn(visibleRange) :
+                this.grid.getRightmostVisibleColumn(visibleRange);
+            if (focusTargetColumn !== null) {
+                focusTargetColumn.getWindowToFocus().focus();
+            }
+        }
     }
 
     public arrange() {

src/lib/layout/Grid.ts

@@ -106,7 +106,7 @@ class Grid {
         this.width = x - this.config.gapsInnerHorizontal;
     }
 
-    public getLeftmostVisibleColumn(visibleRange: Range, fullyVisible: boolean) {
+    public getLeftmostVisibleColumn(visibleRange: Range) {
         for (const column of this.columns.iterator()) {
             if (Range.contains(visibleRange, column)) {
                 return column;
@@ -115,7 +115,7 @@ class Grid {
         return null;
     }
 
-    public getRightmostVisibleColumn(visibleRange: Range, fullyVisible: boolean) {
+    public getRightmostVisibleColumn(visibleRange: Range) {
         let last = null;
         for (const column of this.columns.iterator()) {
             if (Range.contains(visibleRange, column)) {
@@ -127,7 +127,7 @@ class Grid {
         return last;
     }
 
-    public *getVisibleColumns(visibleRange: Range, fullyVisible: boolean) {
+    public *getVisibleColumns(visibleRange: Range) {
         for (const column of this.columns.iterator()) {
             if (Range.contains(visibleRange, column)) {
                 yield column;

src/lib/layout/Window.ts

@@ -7,7 +7,7 @@ class Window {
 
     constructor(client: ClientWrapper, column: Column) {
         this.client = client;
-        this.height = client.kwinClient.frameGeometry.height;
+        this.height = client.kwinClient.frameGeometry.height.round();
 
         let maximizedMode = this.client.getMaximizedMode();
         if (maximizedMode === undefined) {
@@ -123,7 +123,7 @@ class Window {
 
     public onFrameGeometryChanged() {
         const newGeometry = this.client.kwinClient.frameGeometry;
-        this.column.setWidth(newGeometry.width, true);
+        this.column.setWidth(newGeometry.width.round(), true);
         this.column.grid.desktop.onLayoutChanged();
     }
 

src/lib/rules/DesktopFilter.ts

@@ -0,0 +1,30 @@
+class DesktopFilter {
+    private readonly desktopRegex: RegExp | null; // null means all desktops
+
+    constructor(desktopsConfig: string) {
+        this.desktopRegex = DesktopFilter.parseDesktopConfig(desktopsConfig);
+    }
+
+    public shouldWorkOnDesktop(kwinDesktop: KwinDesktop): boolean {
+        if (this.desktopRegex === null) {
+            return true; // Work on all desktops
+        }
+        return this.desktopRegex.test(kwinDesktop.name);
+    }
+
+    private static parseDesktopConfig(config: string): RegExp | null {
+        const trimmed = config.trim();
+
+        if (trimmed.length === 0) {
+            return null; // Empty config means work on all desktops
+        }
+
+        try {
+            return new RegExp(`^${trimmed}$`);
+        } catch (e) {
+            notificationInvalidTiledDesktops.sendEvent();
+            log(`Invalid regex pattern in tiledDesktops config: ${trimmed}. Working on all desktops.`);
+            return null; // Invalid regex means work on all desktops as fallback
+        }
+    }
+}

src/lib/utils/functions.ts

@@ -1,3 +1,21 @@
+interface Number {
+    round(this: number): number;
+    floor(this: number): number;
+    ceil(this: number): number;
+}
+
+Number.prototype.round = function() {
+    return Math.round(this);
+};
+
+Number.prototype.floor = function() {
+    return Math.floor(this);
+};
+
+Number.prototype.ceil = function() {
+    return Math.ceil(this);
+};
+
 interface Function {
     partial<H extends any[], T extends any[], R>(
         this: (...args: [...H, ...T]) => R,

src/lib/utils/math.ts

@@ -24,9 +24,34 @@ function pointEquals(a: QmlPoint, b: QmlPoint) {
         a.y === b.y;
 }
 
-function rectContainsPoint(rect: QmlRect, point: QmlPoint) {
-    return rect.left <= point.x &&
-        rect.right >= point.x &&
-        rect.top <= point.y &&
-        rect.bottom >= point.y;
+function rectRight(rect: QmlRect) {
+    return rect.x + rect.width;
+}
+
+function rectBottom(rect: QmlRect) {
+    return rect.y + rect.height;
+}
+
+function rectContainsPoint(rect: QmlRect, point: QmlPoint) {
+    return rect.x <= point.x &&
+        rectRight(rect) >= point.x &&
+        rect.y <= point.y &&
+        rectBottom(rect) >= point.y;
+}
+
+function roundQtRect(rect: QmlRect) {
+    return Qt.rect(
+        rect.x.round(),
+        rect.y.round(),
+        rect.width.round(),
+        rect.height.round(),
+    );
+}
+
+function rectRightRound(rect: QmlRect) {
+    return rect.x.round() + rect.width.round();
+}
+
+function rectBottomRound(rect: QmlRect) {
+    return rect.y.round() + rect.height.round();
 }

src/lib/world/ClientManager.ts

@@ -31,16 +31,16 @@ class ClientManager {
         console.assert(!this.hasClient(kwinClient));
 
         let constructState: (client: ClientWrapper) => ClientState.State;
+        let desktop: Desktop | undefined;
         if (kwinClient.dock) {
             constructState = () => new ClientState.Docked(this.world, kwinClient);
         } else if (
             Clients.canTileEver(kwinClient) &&
-            this.windowRuleEnforcer.shouldTile(kwinClient)
+            this.windowRuleEnforcer.shouldTile(kwinClient) &&
+            (desktop = this.desktopManager.getDesktopForClient(kwinClient)) !== undefined
         ) {
             Clients.makeTileable(kwinClient);
             console.assert(Clients.canTileNow(kwinClient));
-            const desktop = this.desktopManager.getDesktopForClient(kwinClient);
-            console.assert(desktop !== undefined);
             constructState = (client: ClientWrapper) => new ClientState.Tiled(this.world, client, desktop!.grid);
         } else {
             constructState = (client: ClientWrapper) => new ClientState.Floating(this.world, client, this.config, false);

src/lib/world/ClientWrapper.ts

@@ -21,7 +21,7 @@ class ClientWrapper {
         }
         this.signalManager = ClientWrapper.initSignalManager(this);
         this.rulesSignalManager = rulesSignalManager;
-        this.preferredWidth = kwinClient.frameGeometry.width;
+        this.preferredWidth = kwinClient.frameGeometry.width.round();
         this.manipulatingGeometry = new Doer();
         this.lastPlacement = null;
         this.stateManager = new ClientState.Manager(constructInitialState(this));
@@ -49,10 +49,10 @@ class ClientWrapper {
             if (Clients.isOnOneOfVirtualDesktops(this.kwinClient, kwinDesktops)) {
                 const frame = this.kwinClient.frameGeometry;
                 this.kwinClient.frameGeometry = Qt.rect(
-                    frame.x + dx,
-                    frame.y + dy,
-                    frame.width,
-                    frame.height,
+                    frame.x.round() + dx,
+                    frame.y.round() + dy,
+                    frame.width.round(),
+                    frame.height.round(),
                 );
             }
 
@@ -142,11 +142,11 @@ class ClientWrapper {
         if (!Clients.isOnVirtualDesktop(this.kwinClient, Workspace.currentDesktop)) {
             return;
         }
-        const frame = this.kwinClient.frameGeometry;
-        if (frame.left < screenSize.left) {
-            frame.x = screenSize.left;
-        } else if (frame.right > screenSize.right) {
-            frame.x = screenSize.right - frame.width;
+        const frame = roundQtRect(this.kwinClient.frameGeometry);
+        if (frame.x < screenSize.x) {
+            frame.x = screenSize.x;
+        } else if (rectRight(frame) > rectRight(screenSize)) {
+            frame.x = rectRight(screenSize) - frame.width;
         }
     }
 

src/lib/world/Clients.ts

@@ -47,8 +47,8 @@ namespace Clients {
 
     export function isFullScreenGeometry(kwinClient: KwinClient) {
         const fullScreenArea = Workspace.clientArea(ClientAreaOption.FullScreenArea, kwinClient.output, getKwinDesktopApprox(kwinClient));
-        return kwinClient.clientGeometry.width >= fullScreenArea.width &&
-            kwinClient.clientGeometry.height >= fullScreenArea.height;
+        return kwinClient.clientGeometry.width.round() >= fullScreenArea.width &&
+            kwinClient.clientGeometry.height.round() >= fullScreenArea.height;
     }
 
     export function isOnVirtualDesktop(kwinClient: KwinClient, kwinDesktop: KwinDesktop) {

src/lib/world/DesktopManager.ts

@@ -9,8 +9,7 @@ class DesktopManager {
         private readonly config: Desktop.Config,
         private readonly layoutConfig: LayoutConfig,
         private readonly focusPasser: FocusPassing.Passer,
-        currentActivity: string,
-        currentDesktop: KwinDesktop,
+        private readonly desktopFilter: DesktopFilter,
     ) {
         this.pinManager = pinManager;
         this.config = config;
@@ -19,10 +18,12 @@ class DesktopManager {
         this.selectedScreen = Workspace.activeScreen;
         this.kwinActivities = new Set(Workspace.activities);
         this.kwinDesktops = new Set(Workspace.desktops);
-        this.addDesktop(currentActivity, currentDesktop);
     }
 
     public getDesktop(activity: string, kwinDesktop: KwinDesktop) {
+        if (!this.desktopFilter.shouldWorkOnDesktop(kwinDesktop)) {
+            return undefined;
+        }
         const desktopKey = DesktopManager.getDesktopKey(activity, kwinDesktop);
         const desktop = this.desktops.get(desktopKey);
         if (desktop !== undefined) {

src/lib/world/PinManager.ts

@@ -14,7 +14,7 @@ class PinManager {
     }
 
     public getAvailableSpace(kwinDesktop: KwinDesktop, screen: QmlRect) {
-        const baseLot = new PinManager.Lot(screen.top, screen.bottom, screen.left, screen.right);
+        const baseLot = new PinManager.Lot(screen.y, rectBottom(screen), screen.x, rectRight(screen));
         let lots = [baseLot];
         for (const client of this.pinnedClients) {
             if (!Clients.isOnVirtualDesktop(client, kwinDesktop) || client.minimized) {
@@ -23,7 +23,7 @@ class PinManager {
 
             const newLots: PinManager.Lot[] = [];
             for (const lot of lots) {
-                lot.split(newLots, client.frameGeometry);
+                lot.split(newLots, roundQtRect(client.frameGeometry));
             }
             lots = newLots;
         }
@@ -60,23 +60,23 @@ namespace PinManager {
                 return;
             }
 
-            if (obstacle.top - this.top >= Lot.minHeight) {
-                destLots.push(new Lot(this.top, obstacle.top, this.left, this.right));
+            if (obstacle.y - this.top >= Lot.minHeight) {
+                destLots.push(new Lot(this.top, obstacle.y, this.left, this.right));
             }
-            if (this.bottom - obstacle.bottom >= Lot.minHeight) {
-                destLots.push(new Lot(obstacle.bottom, this.bottom, this.left, this.right));
+            if (this.bottom - rectBottom(obstacle) >= Lot.minHeight) {
+                destLots.push(new Lot(rectBottom(obstacle), this.bottom, this.left, this.right));
             }
-            if (obstacle.left - this.left >= Lot.minWidth) {
-                destLots.push(new Lot(this.top, this.bottom, this.left, obstacle.left));
+            if (obstacle.x - this.left >= Lot.minWidth) {
+                destLots.push(new Lot(this.top, this.bottom, this.left, obstacle.x));
             }
-            if (this.right - obstacle.right >= Lot.minWidth) {
-                destLots.push(new Lot(this.top, this.bottom, obstacle.right, this.right));
+            if (this.right - rectRight(obstacle) >= Lot.minWidth) {
+                destLots.push(new Lot(this.top, this.bottom, rectRight(obstacle), this.right));
             }
         }
 
         private contains(obstacle: QmlRect) {
-            return obstacle.right > this.left && obstacle.left < this.right &&
-                obstacle.bottom > this.top && obstacle.top < this.bottom;
+            return rectRight(obstacle) > this.left && obstacle.x < this.right &&
+                rectBottom(obstacle) > this.top && obstacle.y < this.bottom;
         }
 
         public area() {

src/lib/world/World.ts

@@ -70,8 +70,7 @@ class World {
             },
             layoutConfig,
             focusPasser,
-            Workspace.currentActivity,
-            Workspace.currentDesktop,
+            new DesktopFilter(config.tiledDesktops),
         );
         this.clientManager = new ClientManager(config, this, this.desktopManager, this.pinManager);
         this.addExistingClients();
@@ -98,13 +97,21 @@ class World {
     }
 
     private update() {
-        this.desktopManager.getCurrentDesktop().arrange();
-        this.moveCursorToFocus();
+        const currentDesktop = this.desktopManager.getCurrentDesktop();
+        if (currentDesktop !== undefined) {
+            currentDesktop.arrange();
+            this.moveCursorToFocus();
+        }
     }
 
     private moveCursorToFocus() {
         if (this.cursorFollowsFocus && Workspace.activeWindow !== null) {
-            const cursorAlreadyInFocus = rectContainsPoint(Workspace.activeWindow.frameGeometry, Workspace.cursorPos);
+            // Only move cursor for tiled windows
+            const tiledWindow = this.clientManager.findTiledWindow(Workspace.activeWindow);
+            if (tiledWindow === null) {
+                return;
+            }
+            const cursorAlreadyInFocus = rectContainsPoint(roundQtRect(Workspace.activeWindow.frameGeometry), Workspace.cursorPos);
             if (cursorAlreadyInFocus) {
                 return;
             }
@@ -141,11 +148,23 @@ class World {
     }
 
     public gestureScroll(amount: number) {
-        this.do((clientManager, desktopManager) => desktopManager.getCurrentDesktop().gestureScroll(amount));
+        this.do((clientManager, desktopManager) => {
+            const currentDesktop = desktopManager.getCurrentDesktop();
+            if (currentDesktop !== undefined) {
+                currentDesktop.gestureScroll(amount);
+            }
+        });
     }
 
     public gestureScrollFinish() {
-        this.do((clientManager, desktopManager) => desktopManager.getCurrentDesktop().gestureScrollFinish());
+        this.do((clientManager, desktopManager) => {
+            const focusedWindow = Workspace.activeWindow === null ? null : clientManager.findTiledWindow(Workspace.activeWindow);
+            const currentDesktop = desktopManager.getCurrentDesktop();
+            if (currentDesktop !== undefined) {
+                console.assert(focusedWindow === null || focusedWindow.column.grid.desktop === currentDesktop);
+                currentDesktop.gestureScrollFinish(focusedWindow);
+            }
+        });
     }
 
     public destroy() {

src/lib/world/clientState/Floating.ts

@@ -30,10 +30,10 @@ namespace ClientState {
             const clientRect = client.kwinClient.frameGeometry;
             const width = client.preferredWidth;
             client.place(
-                clientRect.x,
-                clientRect.y,
+                clientRect.x.round(),
+                clientRect.y.round(),
                 width,
-                Math.min(clientRect.height, Math.round(placementArea.height / 2)),
+                Math.min(clientRect.height.round(), Math.round(placementArea.height / 2)),
             );
         }
 

src/lib/world/clientState/Tiled.ts

@@ -123,7 +123,12 @@ namespace ClientState {
                     return;
                 }
 
-                const newGeometry = client.kwinClient.frameGeometry;
+                const newGeometry = roundQtRect(client.kwinClient.frameGeometry);
+                if (rectEquals(oldGeometry, newGeometry)) {
+                    // no real changes, nothing to do
+                    return;
+                }
+
                 const oldCenterX = oldGeometry.x + oldGeometry.width/2;
                 const oldCenterY = oldGeometry.y + oldGeometry.height/2;
                 const newCenterX = newGeometry.x + newGeometry.width/2;
@@ -142,7 +147,7 @@ namespace ClientState {
                             window.column.onUserResizeWidth(
                                 resizeStartWidth,
                                 newGeometry.width - resizeStartWidth,
-                                newGeometry.left !== oldGeometry.left,
+                                newGeometry.x !== oldGeometry.x,
                                 resizeNeighbor,
                             );
                         }
@@ -193,9 +198,9 @@ namespace ClientState {
         private static getResizeNeighborColumn(window: Window) {
             const kwinClient = window.client.kwinClient;
             const column = window.column;
-            if (Workspace.cursorPos.x > kwinClient.clientGeometry.right) {
+            if (Workspace.cursorPos.x > rectRightRound(kwinClient.clientGeometry)) {
                 return column.grid.getRightColumn(column);
-            } else if (Workspace.cursorPos.x < kwinClient.clientGeometry.left) {
+            } else if (Workspace.cursorPos.x < kwinClient.clientGeometry.x.round()) {
                 return column.grid.getLeftColumn(column);
             } else {
                 return null;

src/tests/flows/centerFocused.ts

@@ -1,4 +1,4 @@
-tests.register("Center focused", 1, () => {
+tests.register("Center focused", 5, () => {
     const config = getDefaultConfig();
     const { qtMock, workspaceMock, world } = init(config);
 
@@ -14,8 +14,8 @@ tests.register("Center focused", 1, () => {
     // center client2
     qtMock.fireShortcut("karousel-grid-scroll-focused");
     Assert.centered(config, tilingArea, client2);
-    Assert.fullyVisible(client1.frameGeometry);
-    Assert.fullyVisible(client2.frameGeometry);
+    Assert.fullyVisible(client1.getActualFrameGeometry());
+    Assert.fullyVisible(client2.getActualFrameGeometry());
 
     // undo center client2
     qtMock.fireShortcut("karousel-grid-scroll-focused");
@@ -24,14 +24,14 @@ tests.register("Center focused", 1, () => {
     // center client2
     qtMock.fireShortcut("karousel-grid-scroll-focused");
     Assert.centered(config, tilingArea, client2);
-    Assert.fullyVisible(client1.frameGeometry);
-    Assert.fullyVisible(client2.frameGeometry);
+    Assert.fullyVisible(client1.getActualFrameGeometry());
+    Assert.fullyVisible(client2.getActualFrameGeometry());
 
     // focus client1 (no scrolling should occur)
     qtMock.fireShortcut("karousel-focus-left");
     Assert.centered(config, tilingArea, client2, { message: "No scrolling should have occured" });
-    Assert.fullyVisible(client1.frameGeometry);
-    Assert.fullyVisible(client2.frameGeometry);
+    Assert.fullyVisible(client1.getActualFrameGeometry());
+    Assert.fullyVisible(client2.getActualFrameGeometry());
 
     // center client1
     qtMock.fireShortcut("karousel-grid-scroll-focused");

src/tests/flows/columnsSqueezeSide.ts

@@ -1,4 +1,4 @@
-tests.register("columns squeeze side", 1, () => {
+tests.register("columns squeeze side", 5, () => {
     const baseTestCases = [
         { widths: [500, 500], blocked: [false, false], possible: true },
         { widths: [500, 768], blocked: [false, false], possible: true },
@@ -46,21 +46,21 @@ tests.register("columns squeeze side", 1, () => {
             Assert.columnsFillTilingArea(clients, assertOpt);
             for (let i = 0; i < clients.length; i++) {
                 if (testCase.blocked[i]) {
-                    Assert.equal(clients[i].frameGeometry.width, testCase.widths[i], assertOpt);
+                    Assert.equal(clients[i].getActualFrameGeometry().width, testCase.widths[i], assertOpt);
                 }
             }
         }
 
-        const frames = clients.map(client => client.frameGeometry);
+        const frames = clients.map(client => client.getActualFrameGeometry());
         qtMock.fireShortcut(testCase.action);
-        const newFrames = clients.map(client => client.frameGeometry);
+        const newFrames = clients.map(client => client.getActualFrameGeometry());
         for (let i = 0; i < clients.length; i++) {
             Assert.equalRects(frames[i], newFrames[i], assertOpt);
         }
     }
 });
 
-tests.register("columns squeeze side (just scroll)", 1, () => {
+tests.register("columns squeeze side (just scroll)", 5, () => {
     const baseTestCases = [
         { focus: 0, startVisible: [true, true, false], endVisible: [true, true, false] },
         { focus: 1, startVisible: [false, true, true], endVisible: [true, true, false] },
@@ -91,12 +91,12 @@ tests.register("columns squeeze side (just scroll)", 1, () => {
         const config = getDefaultConfig();
         const { qtMock, workspaceMock, world } = init(config);
 
-        function assertVisible(clients: KwinClient[], visible: boolean[]) {
+        function assertVisible(clients: MockKwinClient[], visible: boolean[]) {
             for (let i = 0; i < clients.length; i++) {
                 if (visible[i]) {
-                    Assert.fullyVisible(clients[i].frameGeometry, { message: assertMsg, skip: 1 });
+                    Assert.fullyVisible(clients[i].getActualFrameGeometry(), { message: assertMsg, skip: 1 });
                 } else {
-                    Assert.notFullyVisible(clients[i].frameGeometry, { message: assertMsg, skip: 1 });
+                    Assert.notFullyVisible(clients[i].getActualFrameGeometry(), { message: assertMsg, skip: 1 });
                 }
             }
         }
@@ -114,9 +114,9 @@ tests.register("columns squeeze side (just scroll)", 1, () => {
         qtMock.fireShortcut(testCase.action);
         assertVisible(clients, testCase.endVisible);
 
-        const frames = clients.map(client => client.frameGeometry);
+        const frames = clients.map(client => client.getActualFrameGeometry());
         qtMock.fireShortcut(testCase.action);
-        const newFrames = clients.map(client => client.frameGeometry);
+        const newFrames = clients.map(client => client.getActualFrameGeometry());
         for (let i = 0; i < clients.length; i++) {
             Assert.equalRects(frames[i], newFrames[i], { message: assertMsg });
         }

src/tests/flows/cursorFollowsFocus.ts

@@ -5,32 +5,78 @@ tests.register("Drag tiled window, untile", 10, () => {
 
     const [client1, client2] = workspaceMock.createClients(2);
     const initialCursorPos = new MockQmlPoint(380, 20);
-    Assert.assert(rectContainsPoint(client1.frameGeometry, initialCursorPos), { message: "invalid test setup" });
+    Assert.assert(rectContainsPoint(client1.getActualFrameGeometry(), initialCursorPos), { message: "invalid test setup" });
     workspaceMock.cursorPos = initialCursorPos.clone();
 
     runOneOf(
         () => { Workspace.activeWindow = client1; },
         () => { qtMock.fireShortcut("karousel-focus-1"); },
     );
-    Assert.assert(rectContainsPoint(client1.frameGeometry, Workspace.cursorPos));
-    Assert.assert(!rectContainsPoint(client2.frameGeometry, Workspace.cursorPos));
+    Assert.assert(rectContainsPoint(client1.getActualFrameGeometry(), Workspace.cursorPos));
+    Assert.assert(!rectContainsPoint(client2.getActualFrameGeometry(), Workspace.cursorPos));
     Assert.assert(pointEquals(Workspace.cursorPos, initialCursorPos), { message: "Cursor should not have been moved because it was already within the focused client" });
 
     runOneOf(
         () => { Workspace.activeWindow = client2; },
         () => { qtMock.fireShortcut("karousel-focus-2"); },
     );
-    Assert.assert(!rectContainsPoint(client1.frameGeometry, Workspace.cursorPos));
-    Assert.assert(rectContainsPoint(client2.frameGeometry, Workspace.cursorPos));
+    Assert.assert(!rectContainsPoint(client1.getActualFrameGeometry(), Workspace.cursorPos));
+    Assert.assert(rectContainsPoint(client2.getActualFrameGeometry(), Workspace.cursorPos));
 
     runOneOf(
         () => { Workspace.activeWindow = client1; },
         () => { qtMock.fireShortcut("karousel-focus-1"); },
     );
-    Assert.assert(rectContainsPoint(client1.frameGeometry, Workspace.cursorPos));
-    Assert.assert(!rectContainsPoint(client2.frameGeometry, Workspace.cursorPos));
+    Assert.assert(rectContainsPoint(client1.getActualFrameGeometry(), Workspace.cursorPos));
+    Assert.assert(!rectContainsPoint(client2.getActualFrameGeometry(), Workspace.cursorPos));
     const lastCursorPos = workspaceMock.cursorPos.clone();
 
     Workspace.activeWindow = null;
     Assert.assert(pointEquals(Workspace.cursorPos, lastCursorPos), { message: "Cursor should not have been moved" });
 });
+
+tests.register("Cursor follows focus only on matched desktops", 1, () => {
+    // Test that cursor follow focus only works for windows on matched desktops (tiled windows)
+    const config = getDefaultConfig();
+    config.cursorFollowsFocus = true;
+    config.tiledDesktops = "^Desktop 1$"; // Only work on Desktop 1
+    const { workspaceMock, world } = init(config);
+
+    // Create a client on Desktop 1 (matched desktop) - should be tiled
+    const client1 = new MockKwinClient();
+    client1.desktops = [workspaceMock.desktops[0]]; // Desktop 1
+    workspaceMock.createWindows(client1);
+
+    // Create a client on Desktop 2 (non-matched desktop) - should be floating
+    const client2 = new MockKwinClient();
+    client2.desktops = [workspaceMock.desktops[1]]; // Desktop 2
+    workspaceMock.createWindows(client2);
+
+    // Set initial cursor position outside both windows
+    const initialCursorPos = new MockQmlPoint(10, 10);
+    workspaceMock.cursorPos = initialCursorPos.clone();
+
+    // Test 1: Focus client1 on matched desktop (Desktop 1) - cursor should move
+    workspaceMock.currentDesktop = workspaceMock.desktops[0]; // Switch to Desktop 1
+    Workspace.activeWindow = client1;
+    world.do(() => {});
+    Assert.assert(rectContainsPoint(client1.getActualFrameGeometry(), Workspace.cursorPos),
+        { message: "Cursor should have moved to tiled window on matched desktop" });
+
+    // Test 2: Switch to non-matched desktop (Desktop 2) and focus client2 - cursor should NOT move
+    workspaceMock.cursorPos = initialCursorPos.clone();
+    workspaceMock.currentDesktop = workspaceMock.desktops[1]; // Switch to Desktop 2
+    Workspace.activeWindow = client2;
+    world.do(() => {});
+    Assert.assert(pointEquals(Workspace.cursorPos, initialCursorPos),
+        { message: "Cursor should NOT move on non-matched desktop" });
+
+    // Test 3: Even if we focus client1 (tiled) while on Desktop 2, cursor should NOT move
+    // because the current desktop is not matched
+    workspaceMock.cursorPos = initialCursorPos.clone();
+    workspaceMock.currentDesktop = workspaceMock.desktops[1]; // Stay on Desktop 2
+    Workspace.activeWindow = client1;
+    world.do(() => {});
+    Assert.assert(pointEquals(Workspace.cursorPos, initialCursorPos),
+        { message: "Cursor should NOT move even for tiled window when current desktop is not matched" });
+});

src/tests/flows/desktopFiltering.ts

@@ -0,0 +1,73 @@
+tests.register("Desktop filtering", 1, () => {
+    // Test 1: Default config should work on all desktops
+    const config1 = getDefaultConfig();
+    const { workspaceMock: wm1, world: world1 } = init(config1);
+
+    const client1 = new MockKwinClient();
+    client1.desktops = [wm1.desktops[0]];
+    wm1.createWindows(client1);
+
+    world1.do((clientManager) => {
+        Assert.tiledClient(clientManager, client1, { message: "Client should be tiled on desktop1 with default config (*)" });
+    });
+});
+
+tests.register("Desktop filtering - specific desktop", 1, () => {
+    // Test 2: Specific desktop name - should work only on matching desktop
+    const config2 = getDefaultConfig();
+    config2.tiledDesktops = "^Desktop 1$";
+    const { workspaceMock: wm2, world: world2 } = init(config2);
+
+    const client1 = new MockKwinClient();
+    client1.desktops = [wm2.desktops[0]]; // Desktop 1
+    wm2.createWindows(client1);
+    world2.do((clientManager) => {
+        Assert.tiledClient(clientManager, client1, { message: "Client should be tiled on Desktop 1" });
+    });
+
+    wm2.removeWindow(client1);
+
+    const client2 = new MockKwinClient();
+    client2.desktops = [wm2.desktops[1]]; // Desktop 2
+    wm2.createWindows(client2);
+    world2.do((clientManager) => {
+        Assert.notTiledClient(clientManager, client2, { message: "Client should NOT be tiled on Desktop 2" });
+    });
+});
+
+tests.register("Desktop filtering - multiple desktops", 1, () => {
+    // Test 3: Multiple desktop names using regex alternation
+    const config3 = getDefaultConfig();
+    config3.tiledDesktops = "^Desktop [12]$";
+    const { workspaceMock: wm3, world: world3 } = init(config3);
+
+    const client1 = new MockKwinClient();
+    client1.desktops = [wm3.desktops[0]]; // Desktop 1
+    wm3.createWindows(client1);
+    world3.do((clientManager) => {
+        Assert.tiledClient(clientManager, client1, { message: "Client should be tiled on Desktop 1" });
+    });
+
+    wm3.removeWindow(client1);
+
+    const client2 = new MockKwinClient();
+    client2.desktops = [wm3.desktops[1]]; // Desktop 2
+    wm3.createWindows(client2);
+    world3.do((clientManager) => {
+        Assert.tiledClient(clientManager, client2, { message: "Client should be tiled on Desktop 2" });
+    });
+});
+
+tests.register("Desktop filtering - windows on multiple desktops", 1, () => {
+    // Test 4: Windows on multiple desktops should not be tiled (fallback to floating)
+    const config4 = getDefaultConfig();
+    config4.tiledDesktops = ".*";
+    const { workspaceMock: wm4, world: world4 } = init(config4);
+
+    const client1 = new MockKwinClient();
+    client1.desktops = [wm4.desktops[0], wm4.desktops[1]]; // Multiple desktops
+    wm4.createWindows(client1);
+    world4.do((clientManager) => {
+        Assert.notTiledClient(clientManager, client1, { message: "Client on multiple desktops should not be tiled" });
+    });
+});

src/tests/flows/externalResize.ts

@@ -8,31 +8,31 @@ tests.register("External resize", 1, () => {
 
     function getTiledFrame(width: number) {
         return new MockQmlRect(
-            tilingArea.left + Math.round((tilingArea.width - width) / 2),
-            tilingArea.top,
+            tilingArea.x + Math.round((tilingArea.width - width) / 2),
+            tilingArea.y,
             width,
             tilingArea.height,
         );
     }
 
     const [client] = workspaceMock.createClientsWithFrames(getClientDesiredFrame(100));
-    Assert.equalRects(client.frameGeometry, getTiledFrame(100), { message: "We should tile the window, respecting its desired width" });
+    Assert.equalRects(client.getActualFrameGeometry(), getTiledFrame(100), { message: "We should tile the window, respecting its desired width" });
 
     function testExternalResizing() {
         client.frameGeometry = getClientDesiredFrame(110);
-        Assert.equalRects(client.frameGeometry, getTiledFrame(110), { message: "We should re-arrange the window, respecting its new desired width" });
+        Assert.equalRects(client.getActualFrameGeometry(), getTiledFrame(110), { message: "We should re-arrange the window, respecting its new desired width" });
 
         client.frameGeometry = getClientDesiredFrame(120);
-        Assert.equalRects(client.frameGeometry, getTiledFrame(120), { message: "We should re-arrange the window, respecting its new desired width" });
+        Assert.equalRects(client.getActualFrameGeometry(), getTiledFrame(120), { message: "We should re-arrange the window, respecting its new desired width" });
 
         client.frameGeometry = getClientDesiredFrame(130);
-        Assert.equalRects(client.frameGeometry, getTiledFrame(130), { message: "We should re-arrange the window, respecting its new desired width" });
+        Assert.equalRects(client.getActualFrameGeometry(), getTiledFrame(130), { message: "We should re-arrange the window, respecting its new desired width" });
 
         client.frameGeometry = getClientDesiredFrame(140);
-        Assert.equalRects(client.frameGeometry, getTiledFrame(140), { message: "We should re-arrange the window, respecting its new desired width" });
+        Assert.equalRects(client.getActualFrameGeometry(), getTiledFrame(140), { message: "We should re-arrange the window, respecting its new desired width" });
 
         client.frameGeometry = getClientDesiredFrame(200);
-        Assert.equalRects(client.frameGeometry, getClientDesiredFrame(200), { message: "We should give up and let the client have its desired frame" });
+        Assert.equalRects(client.getActualFrameGeometry(), getClientDesiredFrame(200), { message: "We should give up and let the client have its desired frame" });
     }
 
     timeControl(addTime => {

src/tests/flows/layout.ts

@@ -10,7 +10,7 @@ tests.register("Focus and move windows", 1, () => {
     });
     Assert.assert(workspaceMock.activeWindow === client3);
 
-    function testLayout(shortcutName: string, grid: KwinClient[][]) {
+    function testLayout(shortcutName: string, grid: MockKwinClient[][]) {
         qtMock.fireShortcut(shortcutName);
         Assert.grid(config, tilingArea, 100, grid, true, [], { skip: 1 });
     }

src/tests/flows/lazyScroller.ts

@@ -13,7 +13,7 @@ tests.register("LazyScroller", 20, () => {
 
     const [client3] = workspaceMock.createClientsWithWidths(300);
     Assert.grid(config, tilingArea, 300, [[client1], [client2], [client3]], false);
-    Assert.equal(client3.frameGeometry.right, tilingArea.right);
+    Assert.equal(rectRight(client3.getActualFrameGeometry()), rectRight(tilingArea));
 
     runOneOf(
         () => { workspaceMock.activeWindow = client2; },
@@ -21,7 +21,7 @@ tests.register("LazyScroller", 20, () => {
         () => { qtMock.fireShortcut("karousel-focus-left"); },
     );
     Assert.grid(config, tilingArea, 300, [[client1], [client2], [client3]], false);
-    Assert.equal(client3.frameGeometry.right, tilingArea.right);
+    Assert.equal(rectRight(client3.getActualFrameGeometry()), rectRight(tilingArea));
 
     runOneOf(
         () => { workspaceMock.activeWindow = client1; },
@@ -31,7 +31,7 @@ tests.register("LazyScroller", 20, () => {
     );
     workspaceMock.activeWindow = client1;
     Assert.grid(config, tilingArea, 300, [[client1], [client2], [client3]], false);
-    Assert.equal(client1.frameGeometry.left, tilingArea.left);
+    Assert.equal(client1.getActualFrameGeometry().x, tilingArea.x);
 
     qtMock.fireShortcut("karousel-grid-scroll-focused");
     Assert.grid(config, tilingArea, 300, [[client1], [client2], [client3]], false);
@@ -43,5 +43,5 @@ tests.register("LazyScroller", 20, () => {
         () => { qtMock.fireShortcut("karousel-focus-right"); },
     );
     Assert.grid(config, tilingArea, 300, [[client1], [client2], [client3]], false);
-    Assert.equal(client1.frameGeometry.left, tilingArea.left);
+    Assert.equal(client1.getActualFrameGeometry().x, tilingArea.x);
 });

src/tests/flows/maximization.ts

@@ -14,43 +14,43 @@
                 Assert.assert(clientManager.hasClient(kwinClient));
             });
 
-            const columnLeftX = tilingArea.left + tilingArea.width/2 - 300/2;
-            const columnTopY = tilingArea.top;
+            const columnLeftX = tilingArea.x + tilingArea.width/2 - 300/2;
+            const columnTopY = tilingArea.y;
             const columnHeight = tilingArea.height;
             Assert.assert(!kwinClient.fullScreen);
             Assert.equal(kwinClient.keepBelow, shouldKeepBelow(true));
             Assert.equal(kwinClient.keepAbove, shouldKeepAbove(true));
-            Assert.rect(kwinClient.frameGeometry, columnLeftX, columnTopY, 300, columnHeight);
+            Assert.rect(kwinClient.getActualFrameGeometry(), columnLeftX, columnTopY, 300, columnHeight);
 
             kwinClient.fullScreen = true;
             Assert.assert(kwinClient.fullScreen);
             Assert.equal(kwinClient.keepBelow, shouldKeepBelow(false));
             Assert.equal(kwinClient.keepAbove, shouldKeepAbove(false));
-            Assert.equalRects(kwinClient.frameGeometry, screen);
+            Assert.equalRects(kwinClient.getActualFrameGeometry(), screen);
 
             kwinClient.fullScreen = false;
             Assert.assert(!kwinClient.fullScreen);
             Assert.equal(kwinClient.keepBelow, shouldKeepBelow(true));
             Assert.equal(kwinClient.keepAbove, shouldKeepAbove(true));
-            Assert.rect(kwinClient.frameGeometry, columnLeftX, columnTopY, 300, columnHeight);
+            Assert.rect(kwinClient.getActualFrameGeometry(), columnLeftX, columnTopY, 300, columnHeight);
 
             kwinClient.setMaximize(true, true);
             Assert.assert(!kwinClient.fullScreen);
             Assert.equal(kwinClient.keepBelow, shouldKeepBelow(false));
             Assert.equal(kwinClient.keepAbove, shouldKeepAbove(false));
-            Assert.equalRects(kwinClient.frameGeometry, screen);
+            Assert.equalRects(kwinClient.getActualFrameGeometry(), screen);
 
             kwinClient.setMaximize(true, false);
             Assert.assert(!kwinClient.fullScreen);
             Assert.equal(kwinClient.keepBelow, shouldKeepBelow(false));
             Assert.equal(kwinClient.keepAbove, shouldKeepAbove(false));
-            Assert.rect(kwinClient.frameGeometry, columnLeftX, 0, 300, screen.height);
+            Assert.rect(kwinClient.getActualFrameGeometry(), columnLeftX, 0, 300, screen.height);
 
             kwinClient.setMaximize(false, false);
             Assert.assert(!kwinClient.fullScreen);
             Assert.equal(kwinClient.keepBelow, shouldKeepBelow(true));
             Assert.equal(kwinClient.keepAbove, shouldKeepAbove(true));
-            Assert.rect(kwinClient.frameGeometry, columnLeftX, columnTopY, 300, columnHeight);
+            Assert.rect(kwinClient.getActualFrameGeometry(), columnLeftX, columnTopY, 300, columnHeight);
         });
 
         tests.register("Maximize with transient " + suffix, 100, () => {
@@ -71,7 +71,7 @@
             );
             Assert.equal(parent.keepBelow, shouldKeepBelow(false));
             Assert.equal(parent.keepAbove, shouldKeepAbove(false));
-            Assert.equalRects(parent.frameGeometry, screen);
+            Assert.equalRects(parent.getActualFrameGeometry(), screen);
 
             workspaceMock.createWindows(child);
             world.do((clientManager, desktopManager) => {
@@ -80,14 +80,14 @@
             Assert.assert(!child.fullScreen);
             Assert.equal(child.keepBelow, shouldKeepBelow(false));
             Assert.equal(child.keepAbove, shouldKeepAbove(false));
-            Assert.rect(child.frameGeometry, 14, 24, 50, 50);
+            Assert.rect(child.getActualFrameGeometry(), 14, 24, 50, 50);
             Assert.equal(parent.keepBelow, shouldKeepBelow(false));
             Assert.equal(parent.keepAbove, shouldKeepAbove(false));
-            Assert.equalRects(parent.frameGeometry, screen);
+            Assert.equalRects(parent.getActualFrameGeometry(), screen);
         });
 
         {
-            function assertWindowed(config: Config, clients: KwinClient[]) {
+            function assertWindowed(config: Config, clients: MockKwinClient[]) {
                 Assert.assert(!clients[0].fullScreen);
                 Assert.equal(clients[0].keepBelow, shouldKeepBelow(true));
                 Assert.equal(clients[0].keepAbove, shouldKeepAbove(true));
@@ -100,7 +100,7 @@
                 Assert.grid(config, tilingArea, [300, 400], [[clients[0]], [clients[1], clients[2]]], true);
             }
 
-            function assertFullScreenOrMaximized(clients: KwinClient[]) {
+            function assertFullScreenOrMaximized(clients: MockKwinClient[]) {
                 Assert.assert(!clients[0].fullScreen);
                 Assert.equal(clients[0].keepBelow, shouldKeepBelow(true));
                 Assert.equal(clients[0].keepAbove, shouldKeepAbove(true));
@@ -109,7 +109,7 @@
                 Assert.equal(clients[1].keepAbove, shouldKeepAbove(true));
                 Assert.equal(clients[2].keepBelow, shouldKeepBelow(false));
                 Assert.equal(clients[2].keepAbove, shouldKeepAbove(false));
-                Assert.equalRects(clients[2].frameGeometry, screen);
+                Assert.equalRects(clients[2].getActualFrameGeometry(), screen);
             }
 
             tests.register("Re-maximize disabled " + suffix, 100, () => {
@@ -232,7 +232,7 @@
             Assert.assert(fullScreenClient.fullScreen);
             Assert.equal(fullScreenClient.keepBelow, shouldKeepBelow(false));
             Assert.equal(fullScreenClient.keepAbove, shouldKeepAbove(false));
-            Assert.equalRects(fullScreenClient.frameGeometry, screen);
+            Assert.equalRects(fullScreenClient.getActualFrameGeometry(), screen);
             Assert.equal(Workspace.activeWindow, fullScreenClient);
 
             {
@@ -245,7 +245,7 @@
                 Assert.assert(fullScreenClient.fullScreen);
                 Assert.equal(fullScreenClient.keepBelow, shouldKeepBelow(false));
                 Assert.equal(fullScreenClient.keepAbove, shouldKeepAbove(false));
-                Assert.equalRects(fullScreenClient.frameGeometry, screen);
+                Assert.equalRects(fullScreenClient.getActualFrameGeometry(), screen);
                 Assert.equal(Workspace.activeWindow, fullScreenClient, opts);
             }
 
@@ -259,7 +259,7 @@
                 Assert.assert(fullScreenClient.fullScreen);
                 Assert.equal(fullScreenClient.keepBelow, shouldKeepBelow(false));
                 Assert.equal(fullScreenClient.keepAbove, shouldKeepAbove(false));
-                Assert.equalRects(fullScreenClient.frameGeometry, screen);
+                Assert.equalRects(fullScreenClient.getActualFrameGeometry(), screen);
                 Assert.equal(Workspace.activeWindow, windowedClient);
             }
         });
@@ -288,7 +288,7 @@
             Assert.assert(fullScreenClient.fullScreen);
             Assert.equal(fullScreenClient.keepBelow, shouldKeepBelow(false));
             Assert.equal(fullScreenClient.keepAbove, shouldKeepAbove(false));
-            Assert.equalRects(fullScreenClient.frameGeometry, screen);
+            Assert.equalRects(fullScreenClient.getActualFrameGeometry(), screen);
             Assert.equal(Workspace.activeWindow, fullScreenClient);
 
             let expectedColumn2Width = 0;

src/tests/flows/pinning.ts

@@ -22,26 +22,26 @@ tests.register("Pin", 20, () => {
     Assert.grid(config, tilingArea, 100, [ [pinned], [tiled1], [tiled2] ], true);
 
     pinned.pin(screenHalfLeft);
-    Assert.equalRects(pinned.frameGeometry, screenHalfLeft);
+    Assert.equalRects(pinned.getActualFrameGeometry(), screenHalfLeft);
     Assert.grid(config, tilingAreaHalfRight, 100, [ [tiled1], [tiled2] ], true);
 
     pinned.pin(screenHalfRight);
-    Assert.equalRects(pinned.frameGeometry, screenHalfRight);
+    Assert.equalRects(pinned.getActualFrameGeometry(), screenHalfRight);
     Assert.grid(config, tilingAreaHalfLeft, 100, [ [tiled1], [tiled2] ], true);
 
     pinned.unpin();
-    Assert.equalRects(pinned.frameGeometry, screenHalfRight);
+    Assert.equalRects(pinned.getActualFrameGeometry(), screenHalfRight);
     Assert.grid(config, tilingArea, 100, [ [tiled1], [tiled2] ], true);
 
     pinned.pin(screenHalfRight);
-    Assert.equalRects(pinned.frameGeometry, screenHalfRight);
+    Assert.equalRects(pinned.getActualFrameGeometry(), screenHalfRight);
     Assert.grid(config, tilingAreaHalfLeft, 100, [ [tiled1], [tiled2] ], true);
 
     pinned.minimized = true;
     Assert.grid(config, tilingArea, 100, [ [tiled1], [tiled2] ], true);
 
     pinned.minimized = false;
-    Assert.equalRects(pinned.frameGeometry, screenHalfRight);
+    Assert.equalRects(pinned.getActualFrameGeometry(), screenHalfRight);
     Assert.grid(config, tilingAreaHalfLeft, 100, [ [tiled1], [tiled2] ], true);
 
     workspaceMock.activeWindow = pinned;

src/tests/flows/presetWidths.ts

@@ -1,4 +1,4 @@
-tests.register("Preset Widths default", 1, () => {
+tests.register("Preset Widths default", 5, () => {
     const config = getDefaultConfig();
     const { qtMock, workspaceMock, world } = init(config);
 
@@ -7,33 +7,48 @@ tests.register("Preset Widths default", 1, () => {
 
     function getRect(columnWidth: number) {
         return new MockQmlRect(
-            tilingArea.left + (tilingArea.width - columnWidth) / 2,
-            tilingArea.top,
+            tilingArea.x + (tilingArea.width - columnWidth) / 2,
+            tilingArea.y,
             columnWidth,
             tilingArea.height,
         );
     }
 
     const [kwinClient] = workspaceMock.createClientsWithWidths(300);
-    Assert.equalRects(kwinClient.frameGeometry, getRect(300));
+    Assert.equalRects(kwinClient.getActualFrameGeometry(), getRect(300));
 
-    qtMock.fireShortcut("karousel-cycle-preset-widths");
-    Assert.equalRects(kwinClient.frameGeometry, getRect(halfWidth));
+    runOneOf(
+        () => qtMock.fireShortcut("karousel-cycle-preset-widths"),
+        () => qtMock.fireShortcut("karousel-column-width-increase"),
+    );
+    Assert.equalRects(kwinClient.getActualFrameGeometry(), getRect(halfWidth));
 
-    qtMock.fireShortcut("karousel-cycle-preset-widths");
-    Assert.equalRects(kwinClient.frameGeometry, getRect(maxWidth));
+    runOneOf(
+        () => qtMock.fireShortcut("karousel-cycle-preset-widths"),
+        () => qtMock.fireShortcut("karousel-column-width-increase"),
+    );
+    Assert.equalRects(kwinClient.getActualFrameGeometry(), getRect(maxWidth));
 
-    qtMock.fireShortcut("karousel-cycle-preset-widths");
-    Assert.equalRects(kwinClient.frameGeometry, getRect(halfWidth));
+    runOneOf(
+        () => qtMock.fireShortcut("karousel-cycle-preset-widths"),
+        () => qtMock.fireShortcut("karousel-column-width-decrease"),
+    );
+    Assert.equalRects(kwinClient.getActualFrameGeometry(), getRect(halfWidth));
 
-    qtMock.fireShortcut("karousel-cycle-preset-widths-reverse");
-    Assert.equalRects(kwinClient.frameGeometry, getRect(maxWidth));
+    runOneOf(
+        () => qtMock.fireShortcut("karousel-cycle-preset-widths"),
+        () => qtMock.fireShortcut("karousel-column-width-increase"),
+    );
+    Assert.equalRects(kwinClient.getActualFrameGeometry(), getRect(maxWidth));
 
-    qtMock.fireShortcut("karousel-cycle-preset-widths-reverse");
-    Assert.equalRects(kwinClient.frameGeometry, getRect(halfWidth));
+    runOneOf(
+        () => qtMock.fireShortcut("karousel-cycle-preset-widths"),
+        () => qtMock.fireShortcut("karousel-column-width-decrease"),
+    );
+    Assert.equalRects(kwinClient.getActualFrameGeometry(), getRect(halfWidth));
 });
 
-tests.register("Preset Widths custom", 1, () => {
+tests.register("Preset Widths custom", 5, () => {
     const config = getDefaultConfig();
     config.presetWidths = "500px, 250px, 100px, 50%";
     const { qtMock, workspaceMock, world } = init(config);
@@ -43,39 +58,122 @@ tests.register("Preset Widths custom", 1, () => {
 
     function getRect(columnWidth: number) {
         return new MockQmlRect(
-            tilingArea.left + (tilingArea.width - columnWidth) / 2,
-            tilingArea.top,
+            tilingArea.x + (tilingArea.width - columnWidth) / 2,
+            tilingArea.y,
             columnWidth,
             tilingArea.height,
         );
     }
 
     const [kwinClient] = workspaceMock.createClientsWithWidths(200);
-    Assert.equalRects(kwinClient.frameGeometry, getRect(200));
+    Assert.equalRects(kwinClient.getActualFrameGeometry(), getRect(200));
+
+    runOneOf(
+        () => qtMock.fireShortcut("karousel-cycle-preset-widths"),
+        () => qtMock.fireShortcut("karousel-column-width-increase"),
+    );
+    Assert.equalRects(kwinClient.getActualFrameGeometry(), getRect(250));
+
+    runOneOf(
+        () => qtMock.fireShortcut("karousel-cycle-preset-widths"),
+        () => qtMock.fireShortcut("karousel-column-width-increase"),
+    );
+    Assert.equalRects(kwinClient.getActualFrameGeometry(), getRect(halfWidth));
+
+    runOneOf(
+        () => qtMock.fireShortcut("karousel-cycle-preset-widths"),
+        () => qtMock.fireShortcut("karousel-column-width-increase"),
+    );
+    Assert.equalRects(kwinClient.getActualFrameGeometry(), getRect(500));
 
     qtMock.fireShortcut("karousel-cycle-preset-widths");
-    Assert.equalRects(kwinClient.frameGeometry, getRect(250));
+    Assert.equalRects(kwinClient.getActualFrameGeometry(), getRect(100));
 
-    qtMock.fireShortcut("karousel-cycle-preset-widths");
-    Assert.equalRects(kwinClient.frameGeometry, getRect(halfWidth));
+    runOneOf(
+        () => qtMock.fireShortcut("karousel-cycle-preset-widths"),
+        () => qtMock.fireShortcut("karousel-column-width-increase"),
+    );
+    Assert.equalRects(kwinClient.getActualFrameGeometry(), getRect(250));
 
-    qtMock.fireShortcut("karousel-cycle-preset-widths");
-    Assert.equalRects(kwinClient.frameGeometry, getRect(500));
-
-    qtMock.fireShortcut("karousel-cycle-preset-widths");
-    Assert.equalRects(kwinClient.frameGeometry, getRect(100));
-
-    qtMock.fireShortcut("karousel-cycle-preset-widths");
-    Assert.equalRects(kwinClient.frameGeometry, getRect(250));
+    runOneOf(
+        () => qtMock.fireShortcut("karousel-cycle-preset-widths-reverse"),
+        () => qtMock.fireShortcut("karousel-column-width-decrease"),
+    );
+    Assert.equalRects(kwinClient.getActualFrameGeometry(), getRect(100));
 
     qtMock.fireShortcut("karousel-cycle-preset-widths-reverse");
-    Assert.equalRects(kwinClient.frameGeometry, getRect(100));
+    Assert.equalRects(kwinClient.getActualFrameGeometry(), getRect(500));
+
+    runOneOf(
+        () => qtMock.fireShortcut("karousel-cycle-preset-widths-reverse"),
+        () => qtMock.fireShortcut("karousel-column-width-decrease"),
+    );
+    Assert.equalRects(kwinClient.getActualFrameGeometry(), getRect(halfWidth));
+});
+
+tests.register("Preset Widths custom percentages", 5, () => {
+    const config = getDefaultConfig();
+    config.presetWidths = "25%, 50%, 75%, 100%";
+    const { qtMock, workspaceMock, world } = init(config);
+
+    const width100 = tilingArea.width;
+    const width75 = width100*0.75 - config.gapsInnerHorizontal*0.25;
+    const width50 = width100*0.50 - config.gapsInnerHorizontal*0.50;
+    const width25 = width100*0.25 - config.gapsInnerHorizontal*0.75;
+
+    function getRect(columnWidth: number) {
+        return new MockQmlRect(
+            tilingArea.x + (tilingArea.width - columnWidth) / 2,
+            tilingArea.y,
+            columnWidth,
+            tilingArea.height,
+        );
+    }
+
+    const [kwinClient] = workspaceMock.createClientsWithWidths(200);
+    Assert.equalRects(kwinClient.getActualFrameGeometry(), getRect(200));
+
+    runOneOf(
+        () => qtMock.fireShortcut("karousel-cycle-preset-widths"),
+        () => qtMock.fireShortcut("karousel-column-width-increase"),
+    );
+    Assert.equalRects(kwinClient.getActualFrameGeometry(), getRect(width50));
+
+    runOneOf(
+        () => qtMock.fireShortcut("karousel-cycle-preset-widths"),
+        () => qtMock.fireShortcut("karousel-column-width-increase"),
+    );
+    Assert.equalRects(kwinClient.getActualFrameGeometry(), getRect(width75));
+
+    runOneOf(
+        () => qtMock.fireShortcut("karousel-cycle-preset-widths"),
+        () => qtMock.fireShortcut("karousel-column-width-increase"),
+    );
+    Assert.equalRects(kwinClient.getActualFrameGeometry(), getRect(width100));
+
+    qtMock.fireShortcut("karousel-cycle-preset-widths");
+    Assert.equalRects(kwinClient.getActualFrameGeometry(), getRect(width25));
 
     qtMock.fireShortcut("karousel-cycle-preset-widths-reverse");
-    Assert.equalRects(kwinClient.frameGeometry, getRect(500));
+    Assert.equalRects(kwinClient.getActualFrameGeometry(), getRect(width100));
 
-    qtMock.fireShortcut("karousel-cycle-preset-widths-reverse");
-    Assert.equalRects(kwinClient.frameGeometry, getRect(halfWidth));
+    runOneOf(
+        () => qtMock.fireShortcut("karousel-cycle-preset-widths-reverse"),
+        () => qtMock.fireShortcut("karousel-column-width-decrease"),
+    );
+    Assert.equalRects(kwinClient.getActualFrameGeometry(), getRect(width75));
+
+    runOneOf(
+        () => qtMock.fireShortcut("karousel-cycle-preset-widths-reverse"),
+        () => qtMock.fireShortcut("karousel-column-width-decrease"),
+    );
+    Assert.equalRects(kwinClient.getActualFrameGeometry(), getRect(width50));
+
+    runOneOf(
+        () => qtMock.fireShortcut("karousel-cycle-preset-widths-reverse"),
+        () => qtMock.fireShortcut("karousel-column-width-decrease"),
+    );
+    Assert.equalRects(kwinClient.getActualFrameGeometry(), getRect(width25));
 });
 
 tests.register("Preset Widths fill screen uniform", 1, () => {
@@ -96,12 +194,12 @@ tests.register("Preset Widths fill screen uniform", 1, () => {
             qtMock.fireShortcut("karousel-cycle-preset-widths");
         }
 
-        const left = tilingArea.left;
-        const right = tilingArea.right;
+        const left = tilingArea.x;
+        const right = rectRight(tilingArea);
         const maxLeftoverPx = nColumns - 1;
         const eps = Math.ceil(maxLeftoverPx / 2);
-        Assert.between(firstClient!.frameGeometry.left, left, left+eps, { message: `nColumns: ${nColumns}` });
-        Assert.between(lastClient!.frameGeometry.right, right-eps, right, { message: `nColumns: ${nColumns}` });
+        Assert.between(firstClient!.getActualFrameGeometry().x, left, left+eps, { message: `nColumns: ${nColumns}` });
+        Assert.between(rectRight(lastClient!.getActualFrameGeometry()), right-eps, right, { message: `nColumns: ${nColumns}` });
     }
 });
 
@@ -123,12 +221,12 @@ tests.register("Preset Widths fill screen non-uniform", 1, () => {
     const halfWidth = maxWidth/2 - config.gapsInnerHorizontal/2;
     const quarterWidth = halfWidth/2 - config.gapsInnerHorizontal/2;
     const height = tilingArea.height;
-    const left1 = tilingArea.left;
+    const left1 = tilingArea.x;
     const left2 = left1 + config.gapsInnerHorizontal + quarterWidth;
     const left3 = left2 + config.gapsInnerHorizontal + quarterWidth;
 
-    Assert.rect(clientThin1.frameGeometry, left1, tilingArea.top, quarterWidth, height);
-    Assert.rect(clientThin2.frameGeometry, left2, tilingArea.top, quarterWidth, height);
-    Assert.rect(clientWide.frameGeometry, left3, tilingArea.top, halfWidth, height);
-    Assert.equal(clientWide.frameGeometry.right, tilingArea.right);
+    Assert.rect(clientThin1.getActualFrameGeometry(), left1, tilingArea.y, quarterWidth, height);
+    Assert.rect(clientThin2.getActualFrameGeometry(), left2, tilingArea.y, quarterWidth, height);
+    Assert.rect(clientWide.getActualFrameGeometry(), left3, tilingArea.y, halfWidth, height);
+    Assert.equal(rectRight(clientWide.getActualFrameGeometry()), rectRight(tilingArea));
 });

src/tests/flows/userResize.ts

@@ -6,9 +6,9 @@ tests.register("User resize", 10, () => {
     let clientLeft: MockKwinClient, clientRightTop: MockKwinClient, clientRightBottom: MockKwinClient;
     function assertSizes(leftWidth: number, rightWidth: number, topHeight: number, bottomHeight: number) {
         const { left, right } = getGridBounds(clientLeft, clientRightTop);
-        Assert.rect(clientLeft.frameGeometry, left, tilingArea.top, leftWidth, tilingArea.height);
-        Assert.rect(clientRightTop.frameGeometry, left+leftWidth+gapH, tilingArea.top, rightWidth, topHeight);
-        Assert.rect(clientRightBottom.frameGeometry, left+leftWidth+gapH, tilingArea.top+topHeight+gapV, rightWidth, bottomHeight);
+        Assert.rect(clientLeft.getActualFrameGeometry(), left, tilingArea.y, leftWidth, tilingArea.height);
+        Assert.rect(clientRightTop.getActualFrameGeometry(), left+leftWidth+gapH, tilingArea.y, rightWidth, topHeight);
+        Assert.rect(clientRightBottom.getActualFrameGeometry(), left+leftWidth+gapH, tilingArea.y+topHeight+gapV, rightWidth, bottomHeight);
     }
 
     {
@@ -89,9 +89,9 @@ tests.register("User resize", 10, () => {
 
         function assertSizes(leftWidth: number, rightWidth: number, topHeight: number, bottomHeight: number) {
             const { left, right } = getGridBounds(clientLeftTop, clientRight);
-            Assert.rect(clientLeftTop.frameGeometry, left, tilingArea.top, leftWidth, topHeight);
-            Assert.rect(clientLeftBottom.frameGeometry, left, tilingArea.top+topHeight+gapV, leftWidth, bottomHeight);
-            Assert.rect(clientRight.frameGeometry, left+leftWidth+gapH, tilingArea.top, rightWidth, tilingArea.height);
+            Assert.rect(clientLeftTop.getActualFrameGeometry(), left, tilingArea.y, leftWidth, topHeight);
+            Assert.rect(clientLeftBottom.getActualFrameGeometry(), left, tilingArea.y+topHeight+gapV, leftWidth, bottomHeight);
+            Assert.rect(clientRight.getActualFrameGeometry(), left+leftWidth+gapH, tilingArea.y, rightWidth, tilingArea.height);
         }
 
         workspaceMock.activeWindow = clientLeftBottom;

src/tests/units/rules/DesktopFilter.ts

@@ -0,0 +1,41 @@
+tests.register("DesktopFilter", 1, () => {
+    const desktop1 = { __brand: "KwinDesktop" as const, id: "1", name: "Desktop 1" };
+    const desktop2 = { __brand: "KwinDesktop" as const, id: "2", name: "Work" };
+    const desktop3 = { __brand: "KwinDesktop" as const, id: "3", name: "Desktop 2" };
+
+    // Test 1: Empty config means all desktops
+    let filter = new DesktopFilter("");
+    Assert.assert(filter.shouldWorkOnDesktop(desktop1), { message: "Empty config should work on desktop1" });
+    Assert.assert(filter.shouldWorkOnDesktop(desktop2), { message: "Empty config should work on desktop2" });
+
+    // Test 2: Whitespace only means all desktops
+    filter = new DesktopFilter("  \n  \n  ");
+    Assert.assert(filter.shouldWorkOnDesktop(desktop1), { message: "Whitespace only should work on desktop1" });
+    Assert.assert(filter.shouldWorkOnDesktop(desktop2), { message: "Whitespace only should work on desktop2" });
+
+    // Test 3: Match all regex pattern
+    filter = new DesktopFilter(".*");
+    Assert.assert(filter.shouldWorkOnDesktop(desktop1), { message: "Regex '.*' should work on desktop1" });
+    Assert.assert(filter.shouldWorkOnDesktop(desktop2), { message: "Regex '.*' should work on desktop2" });
+
+    // Test 4: Partial match without anchors
+    filter = new DesktopFilter("Work");
+    Assert.assert(!filter.shouldWorkOnDesktop(desktop1), { message: "Should not work on desktop1" });
+    Assert.assert(filter.shouldWorkOnDesktop(desktop2), { message: "Should work on desktop2 containing 'Work'" });
+
+    // Test 5: Regex alternation for multiple desktops
+    filter = new DesktopFilter("Desktop 1|Work");
+    Assert.assert(filter.shouldWorkOnDesktop(desktop1), { message: "Should work on desktop1" });
+    Assert.assert(filter.shouldWorkOnDesktop(desktop2), { message: "Should work on desktop2" });
+    Assert.assert(!filter.shouldWorkOnDesktop(desktop3), { message: "Should not work on desktop3" });
+
+    // Test 6: Regex pattern with character class
+    filter = new DesktopFilter("Desktop [12]");
+    Assert.assert(filter.shouldWorkOnDesktop(desktop1), { message: "Should work on desktop1" });
+    Assert.assert(!filter.shouldWorkOnDesktop(desktop2), { message: "Should not work on desktop2" });
+    Assert.assert(filter.shouldWorkOnDesktop(desktop3), { message: "Should work on desktop3" });
+
+    // Test 7: Case-sensitive matching
+    filter = new DesktopFilter("work");
+    Assert.assert(!filter.shouldWorkOnDesktop(desktop2), { message: "Should not work on desktop2 (case mismatch)" });
+});

src/tests/utils/Assert.ts

@@ -127,7 +127,7 @@ namespace Assert {
         config: Config,
         tilingArea: QmlRect,
         columnWidths: number[] | number,
-        grid: KwinClient[][],
+        grid: MockKwinClient[][],
         centered: boolean,
         stackedColumns: number[] = [],
         { message, skip=0 }: Options = {},
@@ -161,7 +161,7 @@ namespace Assert {
         const gridWidth = getGridWidth();
         const startX = centered ?
             tilingArea.x + (tilingArea.width - gridWidth) / 2 :
-            grid[0][0].frameGeometry.x;
+            grid[0][0].getActualFrameGeometry().x;
 
         function getColumnX(column: number) {
             if (columnWidths instanceof Array) {
@@ -205,7 +205,7 @@ namespace Assert {
             for (let iWindow = 0; iWindow < nWindows; iWindow++) {
                 const window = column[iWindow];
                 equalRects(
-                    window.frameGeometry,
+                    window.getActualFrameGeometry(),
                     getRect(iColumn, iWindow, nColumns, nWindows),
                     { message: appendMessage(`column ${iColumn}, window ${iWindow}`, message), skip: skip+1 },
                 );
@@ -216,13 +216,13 @@ namespace Assert {
     export function centered(
         config: Config,
         tilingArea: QmlRect,
-        client:KwinClient,
+        client:MockKwinClient,
         { message, skip=0 }: Options = {},
     ) {
         grid(
             config,
             tilingArea,
-            client.frameGeometry.width,
+            client.getActualFrameGeometry().width,
             [[client]],
             true,
             [],
@@ -235,7 +235,7 @@ namespace Assert {
         { message, skip=0 }: Options = {},
     ) {
         assert(
-            rect.left >= tilingArea.left && rect.right <= tilingArea.right,
+            rect.x >= tilingArea.x && rectRight(rect) <= rectRight(tilingArea),
             {
                 message: appendMessage(`Rect ${rect} not fully visible`, message),
                 skip: skip + 1,
@@ -248,7 +248,7 @@ namespace Assert {
         { message, skip=0 }: Options = {},
     ) {
         assert(
-            rect.left < tilingArea.left || rect.right > tilingArea.right,
+            rect.x < tilingArea.x || rectRight(rect) > rectRight(tilingArea),
             {
                 message: appendMessage(`Rect ${rect} is fully visible, but shouldn't be`, message),
                 skip: skip + 1,
@@ -257,18 +257,18 @@ namespace Assert {
     }
 
     export function columnsFillTilingArea(
-        columns: KwinClient[],
+        columns: MockKwinClient[],
         { message, skip=0 }: Options = {},
     ) {
         const options = { message: message, skip: skip+1 };
-        let x = tilingArea.left;
+        let x = tilingArea.x;
         for (const column of columns) {
-            const width = column.frameGeometry.width;
-            fullyVisible(column.frameGeometry, options);
-            rect(column.frameGeometry, x, tilingArea.top, width, tilingArea.height, options);
+            const width = column.getActualFrameGeometry().width;
+            fullyVisible(column.getActualFrameGeometry(), options);
+            rect(column.getActualFrameGeometry(), x, tilingArea.y, width, tilingArea.height, options);
             x += width + gapH;
         }
-        equal(columns[columns.length-1].frameGeometry.right, tilingArea.right, options);
+        equal(rectRight(columns[columns.length-1].getActualFrameGeometry()), rectRight(tilingArea), options);
     }
 
     export function tiledClient(

src/tests/utils/global.ts

@@ -2,6 +2,7 @@ let Qt: Qt;
 let KWin: KWin;
 let Workspace: Workspace;
 let qmlBase: QmlObject;
+let notificationInvalidTiledDesktops: Notification;
 let notificationInvalidWindowRules: Notification;
 let notificationInvalidPresetWidths: Notification;
 let moveCursorToFocus: DBusCall;
@@ -33,7 +34,7 @@ function init(config: Config) {
         __brand: "QmlObject",
         call: () => {
             Assert.assert(Workspace.activeWindow !== null, { message: "moveCursorToFocus should never be called if there's no focused window" });
-            const frame = Workspace.activeWindow!.frameGeometry;
+            const frame = (Workspace.activeWindow! as MockKwinClient).getActualFrameGeometry();
             workspaceMock.cursorPos.x = Math.floor(frame.x + frame.width/2);
             workspaceMock.cursorPos.y = Math.floor(frame.y + frame.height/2);
         },
@@ -43,9 +44,9 @@ function init(config: Config) {
     return { qtMock, workspaceMock, world };
 }
 
-function getGridBounds(clientLeft: KwinClient, clientRight: KwinClient) {
-    const columnsWidth = clientRight.frameGeometry.right - clientLeft.frameGeometry.left;
-    const left = tilingArea.left + Math.floor((tilingArea.width - columnsWidth) / 2);
+function getGridBounds(clientLeft: MockKwinClient, clientRight: MockKwinClient) {
+    const columnsWidth = rectRight(clientRight.getActualFrameGeometry()) - clientLeft.getActualFrameGeometry().x;
+    const left = tilingArea.x + Math.floor((tilingArea.width - columnsWidth) / 2);
     const right = left + columnsWidth;
     return { left, right };
 }

src/tests/utils/mocks/MockKwinClient.ts

@@ -4,7 +4,7 @@ class MockKwinClient {
     private static readonly borderThickness = 10;
 
     public caption = "App";
-    public minSize: Readonly<QmlSize> = new MockQmlSize(0, 0);
+    public minSize: Readonly<QmlSize> = new MockQmlSize(randomJitter(), randomJitter());
     public readonly transient: boolean;
     public move = false;
     public resize = false;
@@ -52,6 +52,7 @@ class MockKwinClient {
         this.windowedFrameGeometry = _frameGeometry.clone();
         this.transient = transientFor !== null;
         this._desktops = [Workspace.currentDesktop];
+        this.activities = [Workspace.currentActivity];
     }
 
     setMaximize(vertically: boolean, horizontally: boolean) {
@@ -159,10 +160,22 @@ class MockKwinClient {
         );
     }
 
-    public get frameGeometry() {
+    // for assertions
+    public getActualFrameGeometry() {
         return this._frameGeometry;
     }
 
+    // for Karousel
+    public get frameGeometry() {
+        return new MockQmlRect(
+            this._frameGeometry.x + randomJitter(),
+            this._frameGeometry.y + randomJitter(),
+            this._frameGeometry.width + randomJitter(),
+            this._frameGeometry.height + randomJitter(),
+            this.frameGeometryChanged.fire.bind(this.frameGeometryChanged),
+        );
+    }
+
     public set frameGeometry(frameGeometry: MockQmlRect) {
         const oldFrameGeometry = this._frameGeometry;
         this._frameGeometry = new MockQmlRect(

src/tests/utils/mocks/MockQmlRect.ts

@@ -49,22 +49,6 @@ class MockQmlRect {
         this.onChanged(oldRect);
     }
 
-    public get top() {
-        return this.y;
-    }
-
-    public get bottom() {
-        return this.y + this.height;
-    }
-
-    public get left() {
-        return this.x;
-    }
-
-    public get right() {
-        return this.x + this.width;
-    }
-
     public set(target: QmlRect) {
         const oldRect = this.clone();
         this._x = target.x;

src/tests/utils/mocks/MockWorkspace.ts

@@ -3,8 +3,8 @@ class MockWorkspace {
 
     public activities = ["test-activity"];
     public desktops: KwinDesktop[] = [
-        { __brand: "KwinDesktop", id: "desktop1" },
-        { __brand: "KwinDesktop", id: "desktop2" },
+        { __brand: "KwinDesktop", id: "desktop1", name: "Desktop 1" },
+        { __brand: "KwinDesktop", id: "desktop2", name: "Desktop 2" },
     ];
     public currentActivity = this.activities[0];
     public activeScreen: Output = { __brand: "Output" };
@@ -75,7 +75,7 @@ class MockWorkspace {
                 frame.y += delta.y;
             }
             runOneOf(
-                () => window.frameGeometry.set(frame),
+                () => window.getActualFrameGeometry().set(frame),
                 () => window.frameGeometry = frame,
             );
         }
@@ -88,8 +88,8 @@ class MockWorkspace {
         const frame = window.getFrameGeometryCopy();
         if (edgeResize) {
             this.cursorPos = new MockQmlPoint(
-                leftEdge ? frame.left : frame.right,
-                topEdge ? frame.top : frame.bottom,
+                leftEdge ? frame.x : rectRight(frame),
+                topEdge ? frame.y : rectBottom(frame),
             );
         } else {
             this.cursorPos = new MockQmlPoint(
@@ -114,7 +114,7 @@ class MockWorkspace {
                 }
             }
             runOneOf(
-                () => window.frameGeometry.set(frame),
+                () => window.getActualFrameGeometry().set(frame),
                 () => window.frameGeometry = frame,
             );
         }

src/tests/utils/random.ts

@@ -28,6 +28,14 @@ function runReorderDebug(order: number[], ...fs: (() => void)[]) {
     }
 }
 
+function randomJitter() {
+    if (Math.random() < 0.25) {
+        return (Math.random() - 0.5) * 0.5;
+    } else {
+        return 0;
+    }
+}
+
 function randomInt(n: number) {
     return Math.floor(Math.random() * n);
 }