feat: new window gets 1/n ratio, existing windows scale proportionally

Previously addWindow() reset all ratios to equal splits, losing any
custom sizing. Now _addRatioForNewWindow() gives the new window 1/n of
the space and scales the existing windows by (n-1)/n, preserving their
ratios relative to each other.

e.g. [1/3, 1/6, 1/2] + new → [0.25, 0.125, 0.375, 0.25]

.gitea/workflows/build.yaml

@@ -0,0 +1,99 @@
+name: Build and Test
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: archlinux
+    container:
+      image: node:25
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v6
+
+      - name: Install pnpm and TypeScript
+        run: npm install -g pnpm typescript@5.8.3
+
+      - name: Install just
+        run: |
+          curl --proto '=https' --tlsv1.2 -sSf https://just.systems/install.sh | bash -s -- --to /usr/local/bin
+
+      - name: Install system dependencies
+        run: |
+          apt-get update
+          apt-get install -y libglib2.0-dev glib-networking zip
+
+      - name: Install project dependencies
+        run: pnpm install
+
+      - name: Run unit tests
+        run: just test
+
+      - name: Build and package extension
+        run: just build-package
+
+      - name: Upload extension package
+        uses: actions/upload-artifact@v3
+        with:
+          name: aerospike-extension
+          path: aerospike.zip
+          retention-days: 30
+
+  release:
+    needs: build
+    runs-on: archlinux
+    if: github.ref == 'refs/heads/main' && github.event_name == 'push'
+    environment:
+      name: production
+    container:
+      image: node:25
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v6
+
+      - name: Download artifact
+        uses: actions/download-artifact@v3
+        with:
+          name: aerospike-extension
+
+      - name: Get version from package.json
+        id: get_version
+        run: |
+          VERSION=$(node -p "require('./package.json').version")
+          echo "version=v${VERSION}" >> $GITHUB_OUTPUT
+
+      - name: Create Gitea Release
+        env:
+          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
+        run: |
+          curl -X POST \
+            -H "Authorization: token ${GITEA_TOKEN}" \
+            -H "Content-Type: application/json" \
+            -d '{
+              "tag_name": "${{ steps.get_version.outputs.version }}",
+              "name": "Release ${{ steps.get_version.outputs.version }}",
+              "body": "Automated release of aerospike GNOME extension ${{ steps.get_version.outputs.version }}\n\n## Installation\nDownload aerospike.zip and install it as a GNOME extension."
+            }' \
+            "${GITHUB_API_URL}/repos/${GITHUB_REPOSITORY}/releases"
+
+      - name: Upload Release Asset
+        env:
+          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
+        run: |
+          RELEASE_ID=$(curl -H "Authorization: token ${GITEA_TOKEN}" \
+            "${GITHUB_API_URL}/repos/${GITHUB_REPOSITORY}/releases/tags/${{ steps.get_version.outputs.version }}" | \
+            grep -Po '"id":\s*\K[0-9]+' | head -1)
+
+          curl -X POST \
+            -H "Authorization: token ${GITEA_TOKEN}" \
+            -H "Content-Type: multipart/form-data" \
+            -F "attachment=@aerospike.zip" \
+            "${GITHUB_API_URL}/repos/${GITHUB_REPOSITORY}/releases/${RELEASE_ID}/assets?name=aerospike.zip"

.nvmrc

@@ -1 +1 @@
-v20
+24

README.md

@@ -1 +1 @@
-# Aerospike Gnome (Tiling Window Manager)
+# Aerospike Gnome (Tiling Window Manager)

extension.ts

@@ -1,5 +1,5 @@
 import Meta from 'gi://Meta';
-import {Extension, ExtensionMetadata} from 'resource:///org/gnome/shell/extensions/extension.js';
+import {Extension} from 'resource:///org/gnome/shell/extensions/extension.js';
 import * as Main from 'resource:///org/gnome/shell/ui/main.js';
 import Gio from 'gi://Gio';
 import Shell from 'gi://Shell';
@@ -11,7 +11,7 @@ export default class aerospike extends Extension {
     keyBindings: Map<string, number>;
     windowManager: WindowManager;
 
-    constructor(metadata: ExtensionMetadata) {
+    constructor(metadata: ConstructorParameters<typeof Extension>[0]) {
         super(metadata);
         this.settings = this.getSettings('org.gnome.shell.extensions.aerospike');
         this.keyBindings = new Map();
@@ -20,6 +20,7 @@ export default class aerospike extends Extension {
 
     enable() {
         Logger.log("STARTING AEROSPIKE!")
+        this.windowManager._settings = this.settings;
         this.bindSettings();
         this.setupKeybindings();
         this.windowManager.enable()
@@ -53,9 +54,19 @@ export default class aerospike extends Extension {
             this.refreshKeybinding('join-with-right');
         });
 
-        this.settings.connect('changed::remove-all-dividers', () => {
+        this.settings.connect('changed::print-tree', () => {
-            log(`Keybinding remove-all-dividers changed to: ${this.settings.get_strv('remove-all-dividers')}`);
+            log(`Print tree keybinding changed to: ${this.settings.get_strv('print-tree')}`);
-            this.refreshKeybinding('remove-all-dividers');
+            this.refreshKeybinding('print-tree');
+        });
+
+        this.settings.connect('changed::toggle-orientation', () => {
+            log(`Toggle orientation keybinding changed to: ${this.settings.get_strv('toggle-orientation')}`);
+            this.refreshKeybinding('toggle-orientation');
+        });
+
+        this.settings.connect('changed::reset-ratios', () => {
+            log(`Reset ratios keybinding changed to: ${this.settings.get_strv('reset-ratios')}`);
+            this.refreshKeybinding('reset-ratios');
         });
 
         this.settings.connect('changed::dropdown-option', () => {
@@ -93,10 +104,19 @@ export default class aerospike extends Extension {
                     Logger.info('Keybinding 4 was pressed!');
                 });
                 break;
-            case 'remove-all-dividers':
+            case 'print-tree':
-                this.bindKeybinding('remove-all-dividers', () => {
+                this.bindKeybinding('print-tree', () => {
-                    Logger.info('Remove all dividers keybinding pressed!');
+                    this.windowManager.printTreeStructure();
-                    this.windowManager.removeAllDividersFromActiveContainer();
+                });
+                break;
+            case 'toggle-orientation':
+                this.bindKeybinding('toggle-orientation', () => {
+                    this.windowManager.toggleActiveContainerOrientation();
+                });
+                break;
+            case 'reset-ratios':
+                this.bindKeybinding('reset-ratios', () => {
+                    this.windowManager.resetActiveContainerRatios();
                 });
                 break;
         }
@@ -126,9 +146,16 @@ export default class aerospike extends Extension {
             Logger.info('Keybinding 4 was pressed!');
         });
 
-        this.bindKeybinding('remove-all-dividers', () => {
+        this.bindKeybinding('print-tree', () => {
-            Logger.info('Remove all dividers keybinding pressed!');
+            this.windowManager.printTreeStructure();
-            this.windowManager.removeAllDividersFromActiveContainer();
+        });
+
+        this.bindKeybinding('toggle-orientation', () => {
+            this.windowManager.toggleActiveContainerOrientation();
+        });
+
+        this.bindKeybinding('reset-ratios', () => {
+            this.windowManager.resetActiveContainerRatios();
         });
     }
 

jest.config.js

@@ -0,0 +1,23 @@
+export default {
+  preset: 'ts-jest/presets/default-esm',
+  testEnvironment: 'node',
+  extensionsToTreatAsEsm: ['.ts'],
+  moduleNameMapper: {
+    '^(\\.{1,2}/.*)\\.js$': '$1',
+  },
+  transform: {
+    '^.+\\.ts$': [
+      'ts-jest',
+      {
+        useESM: true,
+      },
+    ],
+  },
+  testMatch: ['**/__tests__/**/*.test.ts', '**/?(*.)+(spec|test).ts'],
+  collectCoverageFrom: [
+    'src/**/*.ts',
+    '!src/**/*.d.ts',
+    '!src/**/__tests__/**',
+  ],
+  modulePathIgnorePatterns: ['<rootDir>/dist/', '<rootDir>/node_modules/'],
+};

justfile

@@ -8,7 +8,7 @@ packages:
 
 build: packages && build-schemas
     rm -rf dist/*
-    tsc
+    pnpm exec tsc
     cp metadata.json dist/
     cp stylesheet.css dist/
     mkdir -p dist/schemas
@@ -28,13 +28,25 @@ install: build
 	cp -r dist/* ~/.local/share/gnome-shell/extensions/{{NAME}}@{{DOMAIN}}/
 
 run:
-    env MUTTER_DEBUG_DUMMY_MODE_SPECS=1280x720 dbus-run-session -- gnome-shell --nested --wayland
+    env MUTTER_DEBUG_DUMMY_MODE_SPECS=1280x720 dbus-run-session -- gnome-shell --devkit --wayland
 
 install-and-run: install run
 
 live-debug:
     journalctl /usr/bin/gnome-shell -f -o cat | tee debug.log
 
+test:
+    pnpm test
+
+test-watch:
+    pnpm test:watch
+
+test-coverage:
+    pnpm test:coverage
+
+ci-local:
+    act -W .gitea/workflows/build.yaml
+
 #pack: build
 #    gnome-extensions pack dist \
 #        --force \
@@ -42,4 +54,4 @@ live-debug:
 #        --schema ../schemas/org.gnome.shell.extensions.aerospike.gschema.xml
 #
 #install-pack: pack
-#    gnome-extensions install ./{{FULL_NAME}}.shell-extension.zip --force
+#    gnome-extensions install ./{{FULL_NAME}}.shell-extension.zip --force

package.json

@@ -15,11 +15,20 @@
   },
   "homepage": "https://github.com/example/my-extension#readme",
   "sideEffects": false,
+  "scripts": {
+    "test": "jest",
+    "test:watch": "jest --watch",
+    "test:coverage": "jest --coverage"
+  },
   "devDependencies": {
     "@girs/gjs": "4.0.0-beta.38",
-    "@girs/gnome-shell": "49.0.1",
+    "@girs/gnome-shell": "49.1.0",
+    "@jest/globals": "^30.0.0",
+    "@types/jest": "^30.0.0",
     "eslint": "^9.36.0",
-    "eslint-plugin-jsdoc": "^50.8.0",
+    "eslint-plugin-jsdoc": "^62.0.0",
+    "jest": "^30.0.0",
+    "ts-jest": "^29.1.2",
     "typescript": "^5.9.2"
   },
   "dependencies": {

renovate.json

@@ -0,0 +1,12 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "config:recommended"
+  ],
+  "packageRules": [
+    {
+      "matchPackageNames": ["actions/upload-artifact", "actions/download-artifact"],
+      "allowedVersions": "<4"
+    }
+  ]
+}

schemas/org.gnome.shell.extensions.aerospike.gschema.xml

@@ -37,10 +37,29 @@
             <description>Keyboard shortcut for triggering action 4</description>
         </key>
 
-        <key name="remove-all-dividers" type="as">
+        <key name="print-tree" type="as">
-            <default><![CDATA[['<Alt>z']]]></default>
+            <default><![CDATA[['<Super><Shift>x']]]></default>
-            <summary>Remove all dividers from active container</summary>
+            <summary>Print window tree structure</summary>
-            <description>Keyboard shortcut for removing all dividers from the container with the active window</description>
+            <description>Prints the current tree of containers and windows per monitor to logs</description>
+        </key>
+
+        <key name="toggle-orientation" type="as">
+            <default><![CDATA[['<Super><Shift>comma']]]></default>
+            <summary>Toggle active container orientation</summary>
+            <description>Toggles the orientation of the container holding the active window between horizontal and vertical</description>
+        </key>
+
+        <key name="reset-ratios" type="as">
+            <default><![CDATA[['<Primary>z']]]></default>
+            <summary>Reset container ratios to equal splits</summary>
+            <description>Resets all window size ratios in the active window's container to equal splits</description>
+        </key>
+
+        <key name="min-window-size-percent" type="d">
+            <default>0.10</default>
+            <range min="0.01" max="0.49"/>
+            <summary>Minimum window size percentage</summary>
+            <description>Minimum fraction of a container that any single window may occupy when resizing boundaries</description>
         </key>
 
     </schema>

src/__tests__/container.test.ts

@@ -0,0 +1,182 @@
+import { describe, test, expect, jest, beforeEach } from '@jest/globals';
+
+// Mock the dependencies
+jest.mock('../utils/logger.js', () => ({
+  Logger: {
+    log: jest.fn(),
+    info: jest.fn(),
+    debug: jest.fn(),
+    warn: jest.fn(),
+    error: jest.fn(),
+  },
+}));
+
+jest.mock('../utils/events.js', () => ({
+  default: jest.fn(),
+}));
+
+// Since we can't import the actual WindowContainer that depends on GNOME APIs,
+// we'll test the logic patterns used in the container
+
+describe('Container Logic Tests', () => {
+  describe('Orientation Toggle Logic', () => {
+    enum Orientation {
+      HORIZONTAL = 0,
+      VERTICAL = 1,
+    }
+
+    const toggleOrientation = (current: Orientation): Orientation => {
+      return current === Orientation.HORIZONTAL
+        ? Orientation.VERTICAL
+        : Orientation.HORIZONTAL;
+    };
+
+    test('should toggle from HORIZONTAL to VERTICAL', () => {
+      const result = toggleOrientation(Orientation.HORIZONTAL);
+      expect(result).toBe(Orientation.VERTICAL);
+    });
+
+    test('should toggle from VERTICAL to HORIZONTAL', () => {
+      const result = toggleOrientation(Orientation.VERTICAL);
+      expect(result).toBe(Orientation.HORIZONTAL);
+    });
+  });
+
+  describe('Window Bounds Calculation', () => {
+    test('should calculate horizontal bounds correctly', () => {
+      const workArea = { x: 0, y: 0, width: 1000, height: 500 };
+      const itemCount = 3;
+      const windowWidth = Math.floor(workArea.width / itemCount);
+
+      const bounds = Array.from({ length: itemCount }, (_, index) => ({
+        x: workArea.x + (index * windowWidth),
+        y: workArea.y,
+        width: windowWidth,
+        height: workArea.height,
+      }));
+
+      expect(bounds.length).toBe(3);
+      expect(bounds[0].x).toBe(0);
+      expect(bounds[1].x).toBe(333);
+      expect(bounds[2].x).toBe(666);
+      expect(bounds[0].width).toBe(333);
+    });
+
+    test('should calculate vertical bounds correctly', () => {
+      const workArea = { x: 0, y: 0, width: 1000, height: 900 };
+      const itemCount = 3;
+      const windowHeight = Math.floor(workArea.height / itemCount);
+
+      const bounds = Array.from({ length: itemCount }, (_, index) => ({
+        x: workArea.x,
+        y: workArea.y + (index * windowHeight),
+        width: workArea.width,
+        height: windowHeight,
+      }));
+
+      expect(bounds.length).toBe(3);
+      expect(bounds[0].y).toBe(0);
+      expect(bounds[1].y).toBe(300);
+      expect(bounds[2].y).toBe(600);
+      expect(bounds[0].height).toBe(300);
+    });
+
+    test('should handle single window bounds', () => {
+      const workArea = { x: 100, y: 50, width: 800, height: 600 };
+      const itemCount = 1;
+      const windowWidth = Math.floor(workArea.width / itemCount);
+
+      const bounds = [{
+        x: workArea.x,
+        y: workArea.y,
+        width: windowWidth,
+        height: workArea.height,
+      }];
+
+      expect(bounds[0].x).toBe(100);
+      expect(bounds[0].y).toBe(50);
+      expect(bounds[0].width).toBe(800);
+      expect(bounds[0].height).toBe(600);
+    });
+  });
+
+  describe('Window Index Finding', () => {
+    test('should find window index in array', () => {
+      const windows = [
+        { id: 1, title: 'Window 1' },
+        { id: 2, title: 'Window 2' },
+        { id: 3, title: 'Window 3' },
+      ];
+
+      const findIndex = (id: number) => {
+        for (let i = 0; i < windows.length; i++) {
+          if (windows[i].id === id) {
+            return i;
+          }
+        }
+        return -1;
+      };
+
+      expect(findIndex(2)).toBe(1);
+      expect(findIndex(3)).toBe(2);
+      expect(findIndex(999)).toBe(-1);
+    });
+
+    test('should safely remove window by index', () => {
+      const windows = [
+        { id: 1, title: 'Window 1' },
+        { id: 2, title: 'Window 2' },
+        { id: 3, title: 'Window 3' },
+      ];
+
+      const removeWindow = (id: number) => {
+        const index = windows.findIndex(w => w.id === id);
+        if (index !== -1) {
+          windows.splice(index, 1);
+          return true;
+        }
+        return false;
+      };
+
+      const removed = removeWindow(2);
+      expect(removed).toBe(true);
+      expect(windows.length).toBe(2);
+      expect(windows.find(w => w.id === 2)).toBeUndefined();
+    });
+  });
+
+  describe('Container Item Reordering', () => {
+    test('should reorder items correctly', () => {
+      const items = ['A', 'B', 'C', 'D'];
+      const originalIndex = 1; // 'B'
+      const newIndex = 3;
+
+      // Remove from original position and insert at new position
+      const [item] = items.splice(originalIndex, 1);
+      items.splice(newIndex, 0, item);
+
+      expect(items).toEqual(['A', 'C', 'D', 'B']);
+    });
+
+    test('should handle reordering to same position', () => {
+      const items = ['A', 'B', 'C'];
+      const originalIndex = 1;
+      const newIndex = 1;
+
+      if (originalIndex !== newIndex) {
+        const [item] = items.splice(originalIndex, 1);
+        items.splice(newIndex, 0, item);
+      }
+
+      expect(items).toEqual(['A', 'B', 'C']);
+    });
+
+    test('should handle moving first item to last', () => {
+      const items = ['A', 'B', 'C'];
+      const [item] = items.splice(0, 1);
+      items.splice(2, 0, item);
+
+      expect(items).toEqual(['B', 'C', 'A']);
+    });
+  });
+});

src/__tests__/rect.test.ts

@@ -0,0 +1,75 @@
+import { describe, test, expect } from '@jest/globals';
+import type { Rect } from '../utils/rect.js';
+
+describe('Rect Type Tests', () => {
+  test('should create a valid Rect object', () => {
+    const rect: Rect = {
+      x: 10,
+      y: 20,
+      width: 100,
+      height: 200,
+    };
+
+    expect(rect.x).toBe(10);
+    expect(rect.y).toBe(20);
+    expect(rect.width).toBe(100);
+    expect(rect.height).toBe(200);
+  });
+
+  test('should handle zero dimensions', () => {
+    const rect: Rect = {
+      x: 0,
+      y: 0,
+      width: 0,
+      height: 0,
+    };
+
+    expect(rect.width).toBe(0);
+    expect(rect.height).toBe(0);
+  });
+
+  test('should handle negative coordinates', () => {
+    const rect: Rect = {
+      x: -50,
+      y: -100,
+      width: 200,
+      height: 300,
+    };
+
+    expect(rect.x).toBe(-50);
+    expect(rect.y).toBe(-100);
+  });
+
+  test('should calculate rect area correctly', () => {
+    const rect: Rect = {
+      x: 0,
+      y: 0,
+      width: 100,
+      height: 50,
+    };
+
+    const area = rect.width * rect.height;
+    expect(area).toBe(5000);
+  });
+
+  test('should determine if point is inside rect', () => {
+    const rect: Rect = {
+      x: 10,
+      y: 10,
+      width: 100,
+      height: 100,
+    };
+
+    const pointInside = { x: 50, y: 50 };
+    const pointOutside = { x: 200, y: 200 };
+
+    const isInside = (point: { x: number; y: number }, r: Rect) =>
+      point.x >= r.x &&
+      point.x <= r.x + r.width &&
+      point.y >= r.y &&
+      point.y <= r.y + r.height;
+
+    expect(isInside(pointInside, rect)).toBe(true);
+    expect(isInside(pointOutside, rect)).toBe(false);
+  });
+});

src/prefs/prefs.ts

@@ -155,6 +155,67 @@ export default class AerospikeExtensions extends ExtensionPreferences {
             })
         );
 
+        keybindingsGroup.add(
+            new EntryRow({
+                title: _('Print Tree Structure'),
+                settings: settings,
+                bind: 'print-tree',
+                map: keybindingMap
+            })
+        );
+
+        keybindingsGroup.add(
+            new EntryRow({
+                title: _('Toggle Orientation'),
+                settings: settings,
+                bind: 'toggle-orientation',
+                map: keybindingMap
+            })
+        );
+
+        keybindingsGroup.add(
+            new EntryRow({
+                title: _('Reset Container Ratios to Equal'),
+                settings: settings,
+                bind: 'reset-ratios',
+                map: keybindingMap
+            })
+        );
+
+        // Create sizing group
+        const sizingGroup = new Adw.PreferencesGroup({
+            title: _('Window Sizing'),
+        });
+        page.add(sizingGroup);
+
+        // Minimum window size percentage spinner
+        const minSizeRow = new Adw.ActionRow({
+            title: _('Minimum Window Size'),
+            subtitle: _('Smallest fraction of a container any window may occupy when resizing (e.g. 0.10 = 10%)'),
+        });
+        sizingGroup.add(minSizeRow);
+
+        const minSizeSpin = new Gtk.SpinButton({
+            adjustment: new Gtk.Adjustment({
+                lower: 0.01,
+                upper: 0.49,
+                step_increment: 0.01,
+                page_increment: 0.05,
+                value: settings.get_double('min-window-size-percent'),
+            }),
+            digits: 2,
+            valign: Gtk.Align.CENTER,
+        });
+        minSizeRow.add_suffix(minSizeSpin);
+        minSizeRow.set_activatable_widget(minSizeSpin);
+
+        minSizeSpin.connect('value-changed', () => {
+            settings.set_double('min-window-size-percent', minSizeSpin.get_value());
+        });
+
+        settings.connect('changed::min-window-size-percent', () => {
+            minSizeSpin.set_value(settings.get_double('min-window-size-percent'));
+        });
 
     }
 

src/utils/events.ts

@@ -6,15 +6,23 @@ export type QueuedEvent = {
     callback: () => void;
 }
 
-const queuedEvents: QueuedEvent[] = [];
+// Pending events indexed by name so that duplicate events collapse into one.
+// Only the most-recently-queued callback for a given name is kept.
+const pendingEvents: Map<string, QueuedEvent> = new Map();
 
 export default function queueEvent(event: QueuedEvent, interval = 200) {
-    queuedEvents.push(event);
+    // Overwrite any earlier pending event with the same name — the latest
+    // callback is always the most up-to-date one.
+    pendingEvents.set(event.name, event);
+
     GLib.timeout_add(GLib.PRIORITY_DEFAULT, interval, () => {
-        const e = queuedEvents.pop()
+        const e = pendingEvents.get(event.name);
-        if (e) {
+        if (e && e === event) {
+            // Only fire if this is still the current callback for this name
+            // (a newer call may have replaced it).
+            pendingEvents.delete(event.name);
             e.callback();
         }
-        return queuedEvents.length !== 0;
+        return GLib.SOURCE_REMOVE;
     });
-}
+}

src/wm/container.ts

@@ -3,47 +3,113 @@ import {Logger} from "../utils/logger.js";
 import Meta from "gi://Meta";
 import queueEvent from "../utils/events.js";
 import {Rect} from "../utils/rect.js";
-import {Divider} from "./divider.js";
 
 enum Orientation {
     HORIZONTAL = 0,
     VERTICAL = 1,
 }
 
-type ContainerItem = WindowWrapper | WindowContainer | Divider;
+/**
+ * Build a split-ratio array of length `n` where every element equals 1/n,
+ * with the last slot absorbing any floating-point remainder so the array
+ * always sums to exactly 1.0.
+ */
+function equalRatios(n: number): number[] {
+    if (n <= 0) return [];
+    const base = 1 / n;
+    const ratios = Array(n).fill(base);
+    // Fix floating-point drift: make last slot exact
+    const sumExceptLast = ratios.slice(0, -1).reduce((a, b) => a + b, 0);
+    ratios[n - 1] = 1 - sumExceptLast;
+    return ratios;
+}
+
 
 export default class WindowContainer {
 
-    _tiledItems: ContainerItem[];
+    _tiledItems: (WindowWrapper | WindowContainer)[];
     _tiledWindowLookup: Map<number, WindowWrapper>;
     _orientation: Orientation = Orientation.HORIZONTAL;
     _workArea: Rect;
 
-    constructor(workspaceArea: Rect,) {
+    /**
-        // this._id = monitorId;
+     * Per-child split ratios. Always satisfies:
+     *   _splitRatios.length === _tiledItems.length
+     *   _splitRatios.reduce((a,b) => a+b, 0) === 1.0  (within floating-point epsilon)
+     *   every element >= MIN_RATIO
+     */
+    _splitRatios: number[];
+
+    constructor(workspaceArea: Rect) {
         this._tiledItems = [];
         this._tiledWindowLookup = new Map<number, WindowWrapper>();
         this._workArea = workspaceArea;
+        this._splitRatios = [];
     }
 
+    // ─── Helpers ────────────────────────────────────────────────────────────────
+
+    /** Rebuild _splitRatios as equal fractions after any structural change. */
+    private _resetRatios(): void {
+        this._splitRatios = equalRatios(this._tiledItems.length);
+    }
+
+    /**
+     * Called after a new item has been pushed onto _tiledItems.
+     * The new window (last slot) gets 1/n of the space; existing windows
+     * are scaled down proportionally so their ratios relative to each other
+     * are preserved and the total remains 1.0.
+     *
+     * e.g. [0.33, 0.166, 0.5] + new → new=0.25, existing scaled by 0.75
+     *      → [0.2475, 0.1245, 0.375, 0.25]
+     */
+    private _addRatioForNewWindow(): void {
+        const n = this._tiledItems.length;
+        if (n <= 1) {
+            this._splitRatios = [1.0];
+            return;
+        }
+        const newRatio = 1 / n;
+        const scale    = 1 - newRatio; // existing windows share this fraction
+        const scaled   = this._splitRatios.map(r => r * scale);
+        // Absorb all floating-point drift into the last slot so sum is exactly 1.0
+        const partialSum = scaled.reduce((a, b) => a + b, 0) + newRatio;
+        scaled[scaled.length - 1] += (1.0 - partialSum);
+        this._splitRatios = [...scaled, newRatio];
+    }
+
+    /** Total dimension for the active orientation (width for H, height for V). */
+    private _totalDimension(): number {
+        return this._orientation === Orientation.HORIZONTAL
+            ? this._workArea.width
+            : this._workArea.height;
+    }
+
+    // ─── Public API ─────────────────────────────────────────────────────────────
 
     move(rect: Rect): void {
         this._workArea = rect;
         this.tileWindows();
     }
 
+    toggleOrientation(): void {
+        this._orientation = this._orientation === Orientation.HORIZONTAL
+            ? Orientation.VERTICAL
+            : Orientation.HORIZONTAL;
+        Logger.info(`Container orientation toggled to ${this._orientation === Orientation.HORIZONTAL ? 'HORIZONTAL' : 'VERTICAL'}`);
+        this.tileWindows();
+    }
+
     addWindow(winWrap: WindowWrapper): void {
-        // Add window to managed windows
         this._tiledItems.push(winWrap);
         this._tiledWindowLookup.set(winWrap.getWindowId(), winWrap);
-        // winWrap.setParent(this);
+        this._addRatioForNewWindow();
         queueEvent({
             name: "tiling-windows",
             callback: () => {
                 this.tileWindows();
             }
-        }, 100)
+        }, 100);
-
     }
 
     getWindow(win_id: number): WindowWrapper | undefined {
@@ -51,36 +117,36 @@ export default class WindowContainer {
             return this._tiledWindowLookup.get(win_id);
         }
         for (const item of this._tiledItems) {
-            if (Divider.isDivider(item)) {
+            if (item instanceof WindowContainer) {
-                continue; // Skip dividers
-            } else if (item instanceof WindowContainer) {
                 const win = item.getWindow(win_id);
                 if (win) {
                     return win;
                 }
-            } else if (item instanceof WindowWrapper && item.getWindowId() === win_id) {
+            } else if (item.getWindowId() === win_id) {
                 return item;
             }
         }
-        return undefined
+        return undefined;
     }
 
-    _getIndexOfWindow(win_id: number) {
+    _getIndexOfWindow(win_id: number): number {
         for (let i = 0; i < this._tiledItems.length; i++) {
             const item = this._tiledItems[i];
             if (item instanceof WindowWrapper && item.getWindowId() === win_id) {
                 return i;
             }
         }
-        return -1
+        return -1;
     }
 
     removeWindow(win_id: number): void {
         if (this._tiledWindowLookup.has(win_id)) {
+            const index = this._getIndexOfWindow(win_id);
             this._tiledWindowLookup.delete(win_id);
-            const index = this._getIndexOfWindow(win_id)
+            if (index !== -1) {
-            this._tiledItems.splice(index, 1);
+                this._tiledItems.splice(index, 1);
-            this._cleanupInvalidDividers();
+            }
+            this._resetRatios();
         } else {
             for (const item of this._tiledItems) {
                 if (item instanceof WindowContainer) {
@@ -88,67 +154,30 @@ export default class WindowContainer {
                 }
             }
         }
-        this.tileWindows()
+        this.tileWindows();
-    }
-
-    /**
-     * Removes invalid dividers from the items list.
-     * Invalid dividers are:
-     * - Dividers at the start or end of the list (no window on one side)
-     * - Consecutive dividers (two dividers in a row)
-     */
-    _cleanupInvalidDividers(): void {
-        let i = 0;
-        while (i < this._tiledItems.length) {
-            const item = this._tiledItems[i];
-
-            if (Divider.isDivider(item)) {
-                // Check if divider is at start or end
-                const isAtStart = i === 0;
-                const isAtEnd = i === this._tiledItems.length - 1;
-
-                // Check if next item is also a divider
-                const nextIsDivider = i < this._tiledItems.length - 1 &&
-                                     Divider.isDivider(this._tiledItems[i + 1]);
-
-                if (isAtStart || isAtEnd || nextIsDivider) {
-                    Logger.log(`Removing invalid divider at index ${i}`);
-                    this._tiledItems.splice(i, 1);
-                    continue; // Don't increment i, check the same position again
-                }
-            }
-            i++;
-        }
     }
 
     disconnectSignals(): void {
         this._tiledItems.forEach((item) => {
-                if (Divider.isDivider(item)) {
+            if (item instanceof WindowContainer) {
-                    // Skip dividers - they don't have signals
+                item.disconnectSignals();
-                    return;
+            } else {
-                } else if (item instanceof WindowContainer) {
+                item.disconnectWindowSignals();
-                    item.disconnectSignals()
-                } else if (item instanceof WindowWrapper) {
-                    item.disconnectWindowSignals();
-                }
             }
-        )
+        });
     }
 
     removeAllWindows(): void {
-        this._tiledItems = []
+        this._tiledItems = [];
-        this._tiledWindowLookup.clear()
+        this._tiledWindowLookup.clear();
+        this._splitRatios = [];
     }
 
     tileWindows() {
-        Logger.log("TILING WINDOWS IN CONTAINER")
+        Logger.log("TILING WINDOWS IN CONTAINER");
-
         Logger.log("WorkArea", this._workArea);
-
+        this._tileItems();
-        // Get all windows for current workspaceArea
+        return true;
-        this._tileItems()
-
-        return true
     }
 
     _tileItems() {
@@ -156,24 +185,19 @@ export default class WindowContainer {
             return;
         }
         const bounds = this.getBounds();
-
+        Logger.info(`_tileItems: ratios=[${this._splitRatios.map(r => r.toFixed(3)).join(', ')}] bounds=[${bounds.map(b => `(${b.x},${b.y},${b.width},${b.height})`).join(', ')}]`);
-        // Apply bounds to non-divider items
+        this._tiledItems.forEach((item, index) => {
-        let boundsIndex = 0;
+            const rect = bounds[index];
-        this._tiledItems.forEach((item) => {
-            if (Divider.isDivider(item)) {
-                return; // Skip dividers
-            }
-
-            const rect = bounds[boundsIndex];
             if (item instanceof WindowContainer) {
                 item.move(rect);
-            } else if (item instanceof WindowWrapper) {
+            } else {
+                Logger.info(`_tileItems: window[${index}] id=${item.getWindowId()} dragging=${item._dragging} → rect=(${rect.x},${rect.y},${rect.width},${rect.height})`);
                 item.safelyResizeWindow(rect);
             }
-            boundsIndex++;
+        });
-        })
     }
 
+    // ─── Bounds Calculation ──────────────────────────────────────────────────────
 
     getBounds(): Rect[] {
         if (this._orientation === Orientation.HORIZONTAL) {
@@ -183,177 +207,139 @@ export default class WindowContainer {
     }
 
     getVerticalBounds(): Rect[] {
-        // Filter out dividers to get only windows/containers
+        const items = this._tiledItems;
-        const nonDividerItems = this._tiledItems.filter(item => !Divider.isDivider(item));
+        const totalHeight = this._workArea.height;
+        let usedHeight = 0;
 
-        if (nonDividerItems.length === 0) {
+        return items.map((_, index) => {
-            return [];
+            const y = this._workArea.y + usedHeight;
-        }
+            let height: number;
-
+            if (index === items.length - 1) {
-        // If no dividers, use equal distribution
+                // Last item gets the remainder to avoid pixel gaps from rounding
-        const hasDividers = this._tiledItems.some(item => Divider.isDivider(item));
+                height = totalHeight - usedHeight;
-        if (!hasDividers) {
-            const containerHeight = Math.floor(this._workArea.height / nonDividerItems.length);
-            return nonDividerItems.map((_, index) => {
-                const y = this._workArea.y + (index * containerHeight);
-                return {
-                    x: this._workArea.x,
-                    y: y,
-                    width: this._workArea.width,
-                    height: containerHeight
-                } as Rect;
-            });
-        }
-
-        // Calculate bounds based on divider positions
-        const bounds: Rect[] = [];
-        let currentY = this._workArea.y;
-        let itemIndex = 0;
-
-        for (let i = 0; i < this._tiledItems.length; i++) {
-            const item = this._tiledItems[i];
-
-            if (Divider.isDivider(item)) {
-                // Next segment starts at divider position
-                currentY = this._workArea.y + Math.floor(item.getPosition() * this._workArea.height);
             } else {
-                // Find the end position for this item
+                height = Math.floor(this._splitRatios[index] * totalHeight);
-                let endY: number = this._workArea.y + this._workArea.height;
-
-                // Look ahead to find next divider or end of container
-                for (let j = i + 1; j < this._tiledItems.length; j++) {
-                    if (Divider.isDivider(this._tiledItems[j])) {
-                        const divider = this._tiledItems[j] as Divider;
-                        endY = this._workArea.y + Math.floor(divider.getPosition() * this._workArea.height);
-                        break;
-                    }
-                }
-
-                // Count non-divider items until next divider
-                let itemCount = 0;
-                let itemsInSegment: number[] = [];
-                for (let j = i; j < this._tiledItems.length; j++) {
-                    if (Divider.isDivider(this._tiledItems[j])) {
-                        break;
-                    }
-                    itemsInSegment.push(j);
-                    itemCount++;
-                }
-
-                // Divide space equally among items in this segment
-                const segmentHeight = endY - currentY;
-                const itemHeight = Math.floor(segmentHeight / itemCount);
-
-                for (let k = 0; k < itemsInSegment.length; k++) {
-                    const itemY = currentY + (k * itemHeight);
-                    bounds.push({
-                        x: this._workArea.x,
-                        y: itemY,
-                        width: this._workArea.width,
-                        height: itemHeight
-                    } as Rect);
-                }
-
-                // Skip the items we just processed
-                i += itemCount - 1;
-                currentY = endY;
             }
-        }
+            usedHeight += height;
-
+            return {
-        return bounds;
+                x: this._workArea.x,
+                y: y,
+                width: this._workArea.width,
+                height: height,
+            } as Rect;
+        });
     }
 
     getHorizontalBounds(): Rect[] {
-        // Filter out dividers to get only windows/containers
+        const totalWidth = this._workArea.width;
-        const nonDividerItems = this._tiledItems.filter(item => !Divider.isDivider(item));
+        let usedWidth = 0;
 
-        if (nonDividerItems.length === 0) {
+        return this._tiledItems.map((_, index) => {
-            return [];
+            const x = this._workArea.x + usedWidth;
-        }
+            let width: number;
-
+            if (index === this._tiledItems.length - 1) {
-        // If no dividers, use equal distribution
+                // Last item gets the remainder to avoid pixel gaps from rounding
-        const hasDividers = this._tiledItems.some(item => Divider.isDivider(item));
+                width = totalWidth - usedWidth;
-        if (!hasDividers) {
-            const windowWidth = Math.floor(this._workArea.width / nonDividerItems.length);
-            return nonDividerItems.map((_, index) => {
-                const x = this._workArea.x + (index * windowWidth);
-                return {
-                    x: x,
-                    y: this._workArea.y,
-                    width: windowWidth,
-                    height: this._workArea.height
-                } as Rect;
-            });
-        }
-
-        // Calculate bounds based on divider positions
-        const bounds: Rect[] = [];
-        let currentX = this._workArea.x;
-
-        for (let i = 0; i < this._tiledItems.length; i++) {
-            const item = this._tiledItems[i];
-
-            if (Divider.isDivider(item)) {
-                // Next segment starts at divider position
-                currentX = this._workArea.x + Math.floor(item.getPosition() * this._workArea.width);
             } else {
-                // Find the end position for this item
+                width = Math.floor(this._splitRatios[index] * totalWidth);
-                let endX: number = this._workArea.x + this._workArea.width;
+            }
+            usedWidth += width;
+            return {
+                x: x,
+                y: this._workArea.y,
+                width: width,
+                height: this._workArea.height,
+            } as Rect;
+        });
+    }
 
-                // Look ahead to find next divider or end of container
+    // ─── Boundary / Ratio Adjustment ─────────────────────────────────────────────
-                for (let j = i + 1; j < this._tiledItems.length; j++) {
-                    if (Divider.isDivider(this._tiledItems[j])) {
-                        const divider = this._tiledItems[j] as Divider;
-                        endX = this._workArea.x + Math.floor(divider.getPosition() * this._workArea.width);
-                        break;
-                    }
-                }
 
-                // Count non-divider items until next divider
+    /**
-                let itemCount = 0;
+     * Adjust the boundary between item[boundaryIndex] and item[boundaryIndex+1]
-                let itemsInSegment: number[] = [];
+     * by deltaPixels (positive = move right/down, negative = move left/up).
-                for (let j = i; j < this._tiledItems.length; j++) {
+     *
-                    if (Divider.isDivider(this._tiledItems[j])) {
+     * Both affected ratios are clamped to [_minRatio, 1 - _minRatio] so no
-                        break;
+     * window can be squashed below the configured minimum.
-                    }
+     *
-                    itemsInSegment.push(j);
+     * Returns true if the adjustment was applied, false if it was rejected
-                    itemCount++;
+     * (e.g. out of bounds index or clamping would violate minimum).
-                }
+     */
+    adjustBoundary(boundaryIndex: number, deltaPixels: number, minRatio: number = 0.10): boolean {
+        if (boundaryIndex < 0 || boundaryIndex >= this._tiledItems.length - 1) {
+            Logger.warn(`adjustBoundary: invalid boundaryIndex ${boundaryIndex}`);
+            return false;
+        }
 
-                // Divide space equally among items in this segment
+        const totalDim = this._totalDimension();
-                const segmentWidth = endX - currentX;
+        if (totalDim === 0) return false;
-                const itemWidth = Math.floor(segmentWidth / itemCount);
 
-                for (let k = 0; k < itemsInSegment.length; k++) {
+        const ratioDelta = deltaPixels / totalDim;
-                    const itemX = currentX + (k * itemWidth);
-                    bounds.push({
-                        x: itemX,
-                        y: this._workArea.y,
-                        width: itemWidth,
-                        height: this._workArea.height
-                    } as Rect);
-                }
 
-                // Skip the items we just processed
+        const newLeft  = this._splitRatios[boundaryIndex]     + ratioDelta;
-                i += itemCount - 1;
+        const newRight = this._splitRatios[boundaryIndex + 1] - ratioDelta;
-                currentX = endX;
+
+        if (newLeft < minRatio || newRight < minRatio) {
+            Logger.log(`adjustBoundary: clamped — newLeft=${newLeft.toFixed(3)}, newRight=${newRight.toFixed(3)}, min=${minRatio}`);
+            return false;
+        }
+
+        this._splitRatios[boundaryIndex]     = newLeft;
+        this._splitRatios[boundaryIndex + 1] = newRight;
+
+        Logger.info(`adjustBoundary: boundary=${boundaryIndex} ratios=[${this._splitRatios.map(r => r.toFixed(3)).join(', ')}]`);
+        return true;
+    }
+
+    /**
+     * Adjust boundaries on BOTH axes simultaneously for corner resize ops.
+     * horizontalDelta applies to this container if HORIZONTAL, verticalDelta if VERTICAL.
+     * For nested containers the perpendicular delta is forwarded to the child container.
+     *
+     * boundaryIndex: the slot index whose right/bottom edge is being dragged.
+     */
+    adjustBoundaryBothAxes(
+        boundaryIndex: number,
+        horizontalDelta: number,
+        verticalDelta: number,
+    ): void {
+        if (this._orientation === Orientation.HORIZONTAL) {
+            this.adjustBoundary(boundaryIndex, horizontalDelta);
+        } else {
+            this.adjustBoundary(boundaryIndex, verticalDelta);
+        }
+    }
+
+    // ─── Container Lookup ────────────────────────────────────────────────────────
+
+    /**
+     * Returns the direct-parent WindowContainer that contains win_id as an
+     * immediate child (not recursed further). Returns null if not found.
+     */
+    getContainerForWindow(win_id: number): WindowContainer | null {
+        for (const item of this._tiledItems) {
+            if (item instanceof WindowWrapper && item.getWindowId() === win_id) {
+                return this;
             }
         }
-
+        for (const item of this._tiledItems) {
-        return bounds;
+            if (item instanceof WindowContainer) {
+                const found = item.getContainerForWindow(win_id);
+                if (found !== null) return found;
+            }
+        }
+        return null;
     }
 
     getIndexOfItemNested(item: WindowWrapper): number {
         for (let i = 0; i < this._tiledItems.length; i++) {
             const container = this._tiledItems[i];
-            if (Divider.isDivider(container)) {
+            if (container instanceof WindowContainer) {
-                continue; // Skip dividers
-            } else if (container instanceof WindowContainer) {
                 const index = container.getIndexOfItemNested(item);
                 if (index !== -1) {
                     return i;
                 }
-            } else if (container instanceof WindowWrapper && container.getWindowId() === item.getWindowId()) {
+            } else if (container.getWindowId() === item.getWindowId()) {
                 return i;
             }
         }
@@ -362,272 +348,36 @@ export default class WindowContainer {
 
     // TODO: update this to work with nested containers - all other logic should already be working
     itemDragged(item: WindowWrapper, x: number, y: number): void {
-        // Find the actual index in _tiledItems (including dividers)
+        let original_index = this.getIndexOfItemNested(item);
-        const original_actual_index = this._getIndexOfWindow(item.getWindowId());
 
-        if (original_actual_index === -1) {
+        if (original_index === -1) {
             Logger.error("Item not found in container during drag op", item.getWindowId());
             return;
         }
-
+        let new_index = original_index;
-        // Find which visual slot (non-divider index) we're moving to
+        this.getBounds().forEach((rect, index) => {
-        let new_visual_index = this.getIndexOfItemNested(item);
-        const bounds = this.getBounds();
-        bounds.forEach((rect, index) => {
             if (rect.x < x && rect.x + rect.width > x && rect.y < y && rect.y + rect.height > y) {
-                new_visual_index = index;
+                new_index = index;
-            }
-        })
-
-        // Get current visual index (counting only non-dividers before this item)
-        let original_visual_index = 0;
-        for (let i = 0; i < original_actual_index; i++) {
-            if (!Divider.isDivider(this._tiledItems[i])) {
-                original_visual_index++;
             }
+        });
+        if (original_index !== new_index) {
+            // Swap only the items — ratios stay with their slots.
+            // e.g. slot 0 = 40%, slot 1 = 60%: when the window in slot 1 drags
+            // into slot 0, it takes slot 0's 40% size. The window it displaces
+            // moves to slot 1 and takes the 60% size. The slot ratios are unchanged.
+            [this._tiledItems[original_index], this._tiledItems[new_index]] =
+                [this._tiledItems[new_index], this._tiledItems[original_index]];
+            Logger.info(`itemDragged: swapped slots ${original_index}<->${new_index}, ratios=[${this._splitRatios.map(r => r.toFixed(3)).join(', ')}]`);
+            this.tileWindows();
         }
-
-        if (original_visual_index === new_visual_index) {
-            return; // No movement needed
-        }
-
-        Logger.log(`Swapping window from visual index ${original_visual_index} to ${new_visual_index}`);
-
-        // Find the target window at the new visual index
-        let target_actual_index = -1;
-        let visual_count = 0;
-        for (let i = 0; i < this._tiledItems.length; i++) {
-            if (!Divider.isDivider(this._tiledItems[i])) {
-                if (visual_count === new_visual_index) {
-                    target_actual_index = i;
-                    break;
-                }
-                visual_count++;
-            }
-        }
-
-        if (target_actual_index === -1) {
-            Logger.warn("Could not find target position for drag");
-            return;
-        }
-
-        // Simply swap the two windows in place, leaving dividers where they are
-        const temp = this._tiledItems[original_actual_index];
-        this._tiledItems[original_actual_index] = this._tiledItems[target_actual_index];
-        this._tiledItems[target_actual_index] = temp;
-
-        this.tileWindows();
     }
 
     /**
-     * Handles window resize operations. Creates or updates dividers based on resize direction.
+     * Reset all split ratios in this container to equal fractions.
-     * @param item - The window being resized
+     * Called when the user explicitly requests an equal-split reset (e.g. Ctrl+Z).
-     * @param resizeEdge - The edge being resized (N, S, E, W, etc.)
-     * @param newRect - The new rectangle after resize
      */
-    handleWindowResize(item: WindowWrapper, resizeEdge: Meta.GrabOp, newRect: Rect): void {
+    resetRatios(): void {
-        const itemIndex = this._getIndexOfWindow(item.getWindowId());
+        this._resetRatios();
-        if (itemIndex === -1) {
-            Logger.warn("Window not found in container during resize", item.getWindowId());
-            return;
-        }
-
-        // Determine if this is a valid resize for this container orientation
-        const isHorizontalResize = this._isHorizontalResizeOp(resizeEdge);
-        const isVerticalResize = this._isVerticalResizeOp(resizeEdge);
-
-        // Only allow horizontal resizes in horizontal containers
-        // Only allow vertical resizes in vertical containers
-        if (this._orientation === Orientation.HORIZONTAL && !isHorizontalResize) {
-            Logger.log("Ignoring vertical resize in horizontal container");
-            return;
-        }
-        if (this._orientation === Orientation.VERTICAL && !isVerticalResize) {
-            Logger.log("Ignoring horizontal resize in vertical container");
-            return;
-        }
-
-        // Determine which edge is being resized and find adjacent window
-        let adjacentIndex = -1;
-        let dividerPosition = 0;
-
-        if (this._orientation === Orientation.HORIZONTAL) {
-            // East/West resize
-            if (this._isEastResizeOp(resizeEdge)) {
-                // Resizing east edge - divider goes after this window
-                adjacentIndex = itemIndex + 1;
-                // Calculate divider position as ratio of container width
-                const rightEdge = newRect.x + newRect.width;
-                dividerPosition = (rightEdge - this._workArea.x) / this._workArea.width;
-            } else if (this._isWestResizeOp(resizeEdge)) {
-                // Resizing west edge - divider goes before this window
-                adjacentIndex = itemIndex - 1;
-                dividerPosition = (newRect.x - this._workArea.x) / this._workArea.width;
-            }
-        } else {
-            // Vertical orientation - North/South resize
-            if (this._isSouthResizeOp(resizeEdge)) {
-                // Resizing south edge - divider goes after this window
-                adjacentIndex = itemIndex + 1;
-                const bottomEdge = newRect.y + newRect.height;
-                dividerPosition = (bottomEdge - this._workArea.y) / this._workArea.height;
-            } else if (this._isNorthResizeOp(resizeEdge)) {
-                // Resizing north edge - divider goes before this window
-                adjacentIndex = itemIndex - 1;
-                dividerPosition = (newRect.y - this._workArea.y) / this._workArea.height;
-            }
-        }
-
-        // Make sure there's an adjacent item
-        if (adjacentIndex < 0 || adjacentIndex >= this._tiledItems.length) {
-            Logger.log("No adjacent window for resize operation");
-            return;
-        }
-
-        // Skip if adjacent item is already a divider
-        if (Divider.isDivider(this._tiledItems[adjacentIndex])) {
-            // Update existing divider
-            const divider = this._tiledItems[adjacentIndex] as Divider;
-            divider.setPosition(dividerPosition);
-            Logger.log(`Updated divider at index ${adjacentIndex} to position ${dividerPosition}`);
-        } else {
-            // Insert new divider between items
-            const dividerIndex = Math.max(itemIndex, adjacentIndex);
-            const newDivider = new Divider(dividerPosition, this._orientation);
-            this._tiledItems.splice(dividerIndex, 0, newDivider);
-            Logger.log(`Inserted new divider at index ${dividerIndex} with position ${dividerPosition}`);
-        }
-
         this.tileWindows();
     }
-
+}
-    private _isHorizontalResizeOp(op: Meta.GrabOp): boolean {
-        return op === Meta.GrabOp.RESIZING_E ||
-               op === Meta.GrabOp.RESIZING_W ||
-               op === Meta.GrabOp.RESIZING_NE ||
-               op === Meta.GrabOp.RESIZING_NW ||
-               op === Meta.GrabOp.RESIZING_SE ||
-               op === Meta.GrabOp.RESIZING_SW;
-    }
-
-    private _isVerticalResizeOp(op: Meta.GrabOp): boolean {
-        return op === Meta.GrabOp.RESIZING_N ||
-               op === Meta.GrabOp.RESIZING_S ||
-               op === Meta.GrabOp.RESIZING_NE ||
-               op === Meta.GrabOp.RESIZING_NW ||
-               op === Meta.GrabOp.RESIZING_SE ||
-               op === Meta.GrabOp.RESIZING_SW;
-    }
-
-    private _isEastResizeOp(op: Meta.GrabOp): boolean {
-        return op === Meta.GrabOp.RESIZING_E ||
-               op === Meta.GrabOp.RESIZING_NE ||
-               op === Meta.GrabOp.RESIZING_SE;
-    }
-
-    private _isWestResizeOp(op: Meta.GrabOp): boolean {
-        return op === Meta.GrabOp.RESIZING_W ||
-               op === Meta.GrabOp.RESIZING_NW ||
-               op === Meta.GrabOp.RESIZING_SW;
-    }
-
-    private _isSouthResizeOp(op: Meta.GrabOp): boolean {
-        return op === Meta.GrabOp.RESIZING_S ||
-               op === Meta.GrabOp.RESIZING_SE ||
-               op === Meta.GrabOp.RESIZING_SW;
-    }
-
-    private _isNorthResizeOp(op: Meta.GrabOp): boolean {
-        return op === Meta.GrabOp.RESIZING_N ||
-               op === Meta.GrabOp.RESIZING_NE ||
-               op === Meta.GrabOp.RESIZING_NW;
-    }
-
-    /**
-     * Removes all dividers from this container, reverting to equal space distribution
-     */
-    removeAllDividers(): void {
-        Logger.log("Removing all dividers from container");
-        this._tiledItems = this._tiledItems.filter(item => !Divider.isDivider(item));
-        this.tileWindows();
-    }
-
-    /**
-     * Updates divider position during a live resize operation (or creates if doesn't exist)
-     * This is called repeatedly during resize for live feedback
-     */
-    updateDividerDuringResize(item: WindowWrapper, resizeEdge: Meta.GrabOp, newRect: Rect): void {
-        const itemIndex = this._getIndexOfWindow(item.getWindowId());
-        if (itemIndex === -1) {
-            return;
-        }
-
-        // Determine if this is a valid resize for this container orientation
-        const isHorizontalResize = this._isHorizontalResizeOp(resizeEdge);
-        const isVerticalResize = this._isVerticalResizeOp(resizeEdge);
-
-        if (this._orientation === Orientation.HORIZONTAL && !isHorizontalResize) {
-            return;
-        }
-        if (this._orientation === Orientation.VERTICAL && !isVerticalResize) {
-            return;
-        }
-
-        // Determine which edge is being resized and find adjacent window
-        let adjacentIndex = -1;
-        let dividerPosition = 0;
-
-        if (this._orientation === Orientation.HORIZONTAL) {
-            if (this._isEastResizeOp(resizeEdge)) {
-                adjacentIndex = itemIndex + 1;
-                const rightEdge = newRect.x + newRect.width;
-                dividerPosition = (rightEdge - this._workArea.x) / this._workArea.width;
-            } else if (this._isWestResizeOp(resizeEdge)) {
-                adjacentIndex = itemIndex - 1;
-                dividerPosition = (newRect.x - this._workArea.x) / this._workArea.width;
-            }
-        } else {
-            if (this._isSouthResizeOp(resizeEdge)) {
-                adjacentIndex = itemIndex + 1;
-                const bottomEdge = newRect.y + newRect.height;
-                dividerPosition = (bottomEdge - this._workArea.y) / this._workArea.height;
-            } else if (this._isNorthResizeOp(resizeEdge)) {
-                adjacentIndex = itemIndex - 1;
-                dividerPosition = (newRect.y - this._workArea.y) / this._workArea.height;
-            }
-        }
-
-        // Make sure there's an adjacent item (window or container, not out of bounds)
-        if (adjacentIndex < 0 || adjacentIndex >= this._tiledItems.length) {
-            Logger.log(`No adjacent item at index ${adjacentIndex}`);
-            return;
-        }
-
-        // Determine where divider should be inserted/updated
-        // For East/South resizes: divider between current (itemIndex) and next (itemIndex+1)
-        // For West/North resizes: divider between previous (itemIndex-1) and current (itemIndex)
-        let dividerIndex: number;
-
-        if (this._orientation === Orientation.HORIZONTAL) {
-            dividerIndex = this._isEastResizeOp(resizeEdge) ? itemIndex + 1 : itemIndex;
-        } else {
-            dividerIndex = this._isSouthResizeOp(resizeEdge) ? itemIndex + 1 : itemIndex;
-        }
-
-        // Check if there's already a divider at this position
-        if (dividerIndex < this._tiledItems.length && Divider.isDivider(this._tiledItems[dividerIndex])) {
-            // Update existing divider
-            const divider = this._tiledItems[dividerIndex] as Divider;
-            divider.setPosition(dividerPosition);
-        } else {
-            // Insert new divider
-            const newDivider = new Divider(dividerPosition, this._orientation);
-            this._tiledItems.splice(dividerIndex, 0, newDivider);
-        }
-
-        // Retile to show live updates
-        this.tileWindows();
-    }
-
-
-}

src/wm/divider.ts

@@ -1,45 +0,0 @@
-import {Logger} from "../utils/logger.js";
-
-enum Orientation {
-    HORIZONTAL = 0,
-    VERTICAL = 1,
-}
-
-/**
- * Represents a divider between windows in a container.
- * Dividers track the split position as a ratio (0-1) of the container's size.
- */
-export class Divider {
-    private _position: number; // Position as ratio 0-1
-    private _orientation: Orientation;
-
-    /**
-     * Creates a new divider
-     * @param position - Position as ratio between 0 and 1
-     * @param orientation - Orientation of the divider (HORIZONTAL or VERTICAL)
-     */
-    constructor(position: number, orientation: Orientation) {
-        this._position = Math.max(0, Math.min(1, position)); // Clamp between 0 and 1
-        this._orientation = orientation;
-    }
-
-    getPosition(): number {
-        return this._position;
-    }
-
-    setPosition(position: number): void {
-        this._position = Math.max(0, Math.min(1, position)); // Clamp between 0 and 1
-        Logger.log(`Divider position updated to ${this._position}`);
-    }
-
-    getOrientation(): Orientation {
-        return this._orientation;
-    }
-
-    /**
-     * Check if this is a divider instance
-     */
-    static isDivider(item: any): item is Divider {
-        return item instanceof Divider;
-    }
-}

src/wm/monitor.ts

@@ -67,8 +67,8 @@ export default class Monitor {
     tileWindows(): void {
         this._workArea = global.workspace_manager.get_active_workspace().get_work_area_for_monitor(this._id);
         const activeWorkspace = global.workspace_manager.get_active_workspace();
+        // move() already calls tileWindows() internally — don't call it again
         this._workspaces[activeWorkspace.index()].move(this._workArea);
-        this._workspaces[activeWorkspace.index()].tileWindows()
     }
 
     removeWorkspace(workspaceId: number): void {
@@ -83,17 +83,4 @@ export default class Monitor {
         this._workspaces[item.getWorkspace()].itemDragged(item, x, y);
     }
 
-    handleWindowResize(item: WindowWrapper, resizeEdge: Meta.GrabOp, newRect: Rect): void {
-        this._workspaces[item.getWorkspace()].handleWindowResize(item, resizeEdge, newRect);
-    }
-
-    updateDividerDuringResize(item: WindowWrapper, resizeEdge: Meta.GrabOp, newRect: Rect): void {
-        this._workspaces[item.getWorkspace()].updateDividerDuringResize(item, resizeEdge, newRect);
-    }
-
-    removeAllDividersFromActiveContainer(): void {
-        const activeWorkspace = global.workspace_manager.get_active_workspace();
-        this._workspaces[activeWorkspace.index()].removeAllDividers();
-    }
-
 }

src/wm/window.ts

@@ -16,7 +16,6 @@ export class WindowWrapper {
     readonly _signals: number[] = [];
     _parent: WindowContainer | null = null;
     _dragging: boolean = false;
-    _resizing: boolean = false;
 
     constructor(
         window: Meta.Window,
@@ -54,13 +53,6 @@ export class WindowWrapper {
         this._dragging = false;
     }
 
-    startResizing(): void {
-        this._resizing = true;
-    }
-    stopResizing(): void {
-        this._resizing = false;
-    }
-
     // setParent(parent: WindowContainer): void {
     //     this._parent = parent;
     // }
@@ -93,11 +85,6 @@ export class WindowWrapper {
 
                 }
             }),
-            this._window.connect('notify::has-focus', () => {
-                if (this._window.has_focus()) {
-                    windowManager._activeWindowId = windowId;
-                }
-            }),
             this._window.connect('notify::maximized-horizontally', () => {
                 if (this._window.is_maximized()) {
                     Logger.log(`Window maximized: ${windowId}`);
@@ -112,6 +99,9 @@ export class WindowWrapper {
             this._window.connect("position-changed", (_metaWindow) => {
                 windowManager.handleWindowPositionChanged(this);
             }),
+            this._window.connect("size-changed", (_metaWindow) => {
+                windowManager.handleWindowPositionChanged(this);
+            }),
         );
     }
 
@@ -130,41 +120,41 @@ export class WindowWrapper {
         }
     }
 
-    safelyResizeWindow(rect: Rect, _retry: number = 2): void {
+    safelyResizeWindow(rect: Rect, _retry: number = 3): void {
-        // Keep minimal logging
+        if (this._dragging) {
-        if (this._dragging && !this._resizing) {
+            Logger.info("STOPPED RESIZE BECAUSE ITEM IS BEING DRAGGED");
-            // During drag operations (not resize), skip this entirely
             return;
         }
-        // Logger.log("SAFELY RESIZE", rect.x, rect.y, rect.width, rect.height);
-        const actor = this._window.get_compositor_private();
 
+        const actor = this._window.get_compositor_private() as Clutter.Actor | null;
         if (!actor) {
             Logger.log("No actor available, can't resize safely yet");
             return;
         }
-        let windowActor = this._window.get_compositor_private() as Clutter.Actor;
+
-        if (!windowActor) return;
+        actor.remove_all_transitions();
-        windowActor.remove_all_transitions();
+
-        // Logger.info("MOVING")
+        // Single call: move + resize atomically
-        this._window.move_frame(true, rect.x, rect.y);
-        // Logger.info("RESIZING MOVING")
         this._window.move_resize_frame(true, rect.x, rect.y, rect.width, rect.height);
 
-        // Don't retry during live resize operations - it causes spam and isn't needed
+        const new_rect = this._window.get_frame_rect();
-        if (this._resizing) {
+        const TOLERANCE = 2; // pixels — allow compositor rounding
-            return;
+        const mismatch =
-        }
+            Math.abs(new_rect.x - rect.x) > TOLERANCE ||
+            Math.abs(new_rect.y - rect.y) > TOLERANCE ||
+            Math.abs(new_rect.width  - rect.width)  > TOLERANCE ||
+            Math.abs(new_rect.height - rect.height) > TOLERANCE;
 
-        let new_rect = this._window.get_frame_rect();
+        if (_retry > 0 && mismatch) {
-        if ( _retry > 0 && (new_rect.x != rect.x || rect.y != new_rect.y || rect.width < new_rect.width || rect.height < new_rect.height)) {
+            Logger.warn("RESIZE MISMATCH, retrying",
-            Logger.warn("RESIZING FAILED AS SMALLER", new_rect.x, new_rect.y, new_rect.width, new_rect.height, rect.x, rect.y, rect.width, rect.height);
+                `want(${rect.x},${rect.y},${rect.width},${rect.height})`,
+                `got(${new_rect.x},${new_rect.y},${new_rect.width},${new_rect.height})`);
             queueEvent({
-                name: "attempting_delayed_resize",
+                name: `delayed_resize_${this.getWindowId()}`,
                 callback: () => {
-                    this.safelyResizeWindow(rect, _retry-1);
+                    this.safelyResizeWindow(rect, _retry - 1);
                 }
-            })
+            }, 50);
         }
     }
 

src/wm/windowManager.ts

@@ -1,5 +1,5 @@
 import Meta from "gi://Meta";
-// import Gio from "gi://Gio";
+import Gio from "gi://Gio";
 // import GLib from "gi://GLib";
 
 import {WindowWrapper} from './window.js';
@@ -7,6 +7,8 @@ import * as Main from "resource:///org/gnome/shell/ui/main.js";
 // import Mtk from "@girs/mtk-16";
 import {Logger} from "../utils/logger.js";
 import Monitor from "./monitor.js";
+import WindowContainer from "./container.js";
+import {Rect} from "../utils/rect.js";
 
 
 export interface IWindowManager {
@@ -44,14 +46,27 @@ export default class WindowManager implements IWindowManager {
 
     _grabbedWindowMonitor: number = _UNUSED_MONITOR_ID;
     _grabbedWindowId: number = _UNUSED_WINDOW_ID;
-    _grabbedOp: Meta.GrabOp | null = null;
     _changingGrabbedMonitor: boolean = false;
 
     _showingOverview: boolean = false;
 
-    constructor() {
+    // ── Resize-drag tracking ──────────────────────────────────────────────────
+    _isResizeDrag: boolean = false;
+    _resizeDragWindowId: number = _UNUSED_WINDOW_ID;
+    _resizeDragOp: Meta.GrabOp = Meta.GrabOp.NONE;
+    /** Mouse position at the start of each incremental resize step. */
+    _resizeDragLastMouseX: number = 0;
+    _resizeDragLastMouseY: number = 0;
+    /** Re-entrancy guard: true while tileWindows is propagating position-changed events. */
+    _isTiling: boolean = false;
 
+    _settings: Gio.Settings | null = null;
 
+    constructor() {}
+
+    /** Returns the live min-ratio value from settings, falling back to 0.10. */
+    private _getMinRatio(): number {
+        return this._settings?.get_double('min-window-size-percent') ?? 0.10;
     }
 
     public enable(): void {
@@ -65,6 +80,9 @@ export default class WindowManager implements IWindowManager {
         }
 
         this.captureExistingWindows();
+
+        // Sync the initially focused window
+        this.syncActiveWindow();
     }
 
     instantiateDisplaySignals(): void {
@@ -87,6 +105,9 @@ export default class WindowManager implements IWindowManager {
             global.display.connect('window-created', (display, window) => {
                 this.handleWindowCreated(display, window);
             }),
+            global.display.connect('notify::focus-window', () => {
+                this.syncActiveWindow();
+            }),
 
             global.display.connect("showing-desktop-changed", () => {
                 Logger.log("SHOWING DESKTOP CHANGED");
@@ -158,10 +179,13 @@ export default class WindowManager implements IWindowManager {
     }
 
     removeAllWindows(): void {
+        // Disconnect signals from minimized windows before clearing
+        this.disconnectMinimizedSignals();
+        this._minimizedItems.clear();
+
         this._monitors.forEach((monitor: Monitor) => {
             monitor.removeAllWindows();
         })
-        this._minimizedItems.clear();
     }
 
 
@@ -199,63 +223,69 @@ export default class WindowManager implements IWindowManager {
     }
 
 
-    handleGrabOpBegin(display: Meta.Display, window: Meta.Window, op: Meta.GrabOp): void {
+    /**
-        if (op === Meta.GrabOp.MOVING_UNCONSTRAINED){
+     * Returns true if the grab op is a resize operation (any edge or corner).
-
+     */
-        }
+    _isResizeOp(op: Meta.GrabOp): boolean {
-        Logger.log("Grab Op Start", op);
+        return op === Meta.GrabOp.RESIZING_E  ||
-        Logger.log(display, window, op)
+               op === Meta.GrabOp.RESIZING_W  ||
-        Logger.log(window.get_monitor())
+               op === Meta.GrabOp.RESIZING_N  ||
-
+               op === Meta.GrabOp.RESIZING_S  ||
-        const winWrap = this._getWrappedWindow(window);
-        if (this._isResizeOp(op)) {
-            winWrap?.startResizing();
-        } else {
-            winWrap?.startDragging();
-        }
-
-        this._grabbedWindowMonitor = window.get_monitor();
-        this._grabbedWindowId = window.get_id();
-        this._grabbedOp = op;
-    }
-
-    handleGrabOpEnd(display: Meta.Display, window: Meta.Window, op: Meta.GrabOp): void {
-        Logger.log("Grab Op End ", op);
-        Logger.log("primary display", display.get_primary_monitor())
-
-        // Handle resize operations
-        if (this._isResizeOp(op)) {
-            const winWrap = this._getWrappedWindow(window);
-            if (winWrap && this._grabbedOp) {
-                const newRect = window.get_frame_rect();
-                const monitorId = window.get_monitor();
-                Logger.log(`Handling resize operation: ${op}, new rect:`, newRect);
-                this._monitors.get(monitorId)?.handleWindowResize(winWrap, this._grabbedOp, newRect);
-                winWrap.stopResizing();
-            }
-        } else {
-            this._getWrappedWindow(window)?.stopDragging();
-        }
-
-        this._grabbedWindowId = _UNUSED_WINDOW_ID;
-        this._grabbedOp = null;
-        this._tileMonitors();
-        Logger.info("monitor_start and monitor_end", this._grabbedWindowMonitor, window.get_monitor());
-    }
-
-    private _isResizeOp(op: Meta.GrabOp): boolean {
-        return op === Meta.GrabOp.RESIZING_E ||
-               op === Meta.GrabOp.RESIZING_W ||
-               op === Meta.GrabOp.RESIZING_N ||
-               op === Meta.GrabOp.RESIZING_S ||
                op === Meta.GrabOp.RESIZING_NE ||
                op === Meta.GrabOp.RESIZING_NW ||
                op === Meta.GrabOp.RESIZING_SE ||
                op === Meta.GrabOp.RESIZING_SW;
     }
 
+    handleGrabOpBegin(display: Meta.Display, window: Meta.Window, op: Meta.GrabOp): void {
+        Logger.log("Grab Op Start", op);
+
+        if (this._isResizeOp(op)) {
+            // ── Resize drag ──────────────────────────────────────────────────
+            Logger.log("Resize drag begin, op=", op);
+            this._isResizeDrag = true;
+            this._resizeDragWindowId = window.get_id();
+            this._resizeDragOp = op;
+            const [startMouseX, startMouseY] = global.get_pointer();
+            this._resizeDragLastMouseX = startMouseX;
+            this._resizeDragLastMouseY = startMouseY;
+            // Mark the window as dragging so safelyResizeWindow skips it while
+            // we tile the other windows in response to ratio changes.
+            this._getWrappedWindow(window)?.startDragging();
+        } else {
+            // ── Move drag (existing behaviour) ───────────────────────────────
+            this._getWrappedWindow(window)?.startDragging();
+            this._grabbedWindowMonitor = window.get_monitor();
+            this._grabbedWindowId = window.get_id();
+        }
+    }
+
+    handleGrabOpEnd(display: Meta.Display, window: Meta.Window, op: Meta.GrabOp): void {
+        Logger.log("Grab Op End ", op);
+
+        if (this._isResizeDrag) {
+            // ── Resize drag end ──────────────────────────────────────────────
+            Logger.log("Resize drag end, op=", op);
+            this._isResizeDrag = false;
+            this._resizeDragWindowId = _UNUSED_WINDOW_ID;
+            this._resizeDragLastMouseX = 0;
+            this._resizeDragLastMouseY = 0;
+            this._resizeDragOp = Meta.GrabOp.NONE;
+            // Stop suppressing the window, then snap everything to computed ratios
+            this._getWrappedWindow(window)?.stopDragging();
+            this._tileMonitors();
+        } else {
+            // ── Move drag end (existing behaviour) ───────────────────────────
+            Logger.log("primary display", display.get_primary_monitor())
+            this._grabbedWindowId = _UNUSED_WINDOW_ID;
+            this._getWrappedWindow(window)?.stopDragging();
+            this._tileMonitors();
+            Logger.info("monitor_start and monitor_end", this._grabbedWindowMonitor, window.get_monitor());
+        }
+    }
+
     _getWrappedWindow(window: Meta.Window): WindowWrapper | undefined {
-        let wrapped = undefined;
+        let wrapped: WindowWrapper | undefined = undefined;
         for (const monitor of this._monitors.values()) {
             wrapped = monitor.getWindow(window.get_id());
             if (wrapped !== undefined) {
@@ -266,7 +296,7 @@ export default class WindowManager implements IWindowManager {
     }
 
     _getAndRemoveWrappedWindow(window: Meta.Window): WindowWrapper | undefined {
-        let wrapped = undefined;
+        let wrapped: WindowWrapper | undefined = undefined;
         for (const monitor of this._monitors.values()) {
             wrapped = monitor.getWindow(window.get_id());
             if (wrapped !== undefined) {
@@ -281,7 +311,7 @@ export default class WindowManager implements IWindowManager {
         let wrapped = this._getAndRemoveWrappedWindow(window);
         if (wrapped === undefined) {
             Logger.error("WINDOW NOT DEFINED")
-            wrapped = new WindowWrapper(window, this.handleWindowMinimized);
+            wrapped = new WindowWrapper(window, (winWrap) => this.handleWindowMinimized(winWrap));
             wrapped.connectWindowSignals(this);
         }
         let new_mon = this._monitors.get(monitorId);
@@ -290,19 +320,21 @@ export default class WindowManager implements IWindowManager {
     }
 
     public handleWindowPositionChanged(winWrap: WindowWrapper): void {
+        // Ignore position changes that we triggered ourselves via tileWindows
+        if (this._isTiling) {
+            return;
+        }
         if (this._changingGrabbedMonitor) {
             return;
         }
 
-        // Handle resize operations - update dividers in real-time
+        // ── Live resize-drag handling ─────────────────────────────────────────
-        if (this._grabbedOp && this._isResizeOp(this._grabbedOp)) {
+        if (this._isResizeDrag && winWrap.getWindowId() === this._resizeDragWindowId) {
-            const window = winWrap.getWindow();
+            this._handleResizeDragUpdate(winWrap);
-            const newRect = window.get_frame_rect();
-            const monitorId = window.get_monitor();
-            this._monitors.get(monitorId)?.updateDividerDuringResize(winWrap, this._grabbedOp, newRect);
             return;
         }
 
+        // ── Move-drag handling (existing behaviour) ───────────────────────────
         if (winWrap.getWindowId() === this._grabbedWindowId) {
             const [mouseX, mouseY, _] = global.get_pointer();
 
@@ -316,18 +348,109 @@ export default class WindowManager implements IWindowManager {
                 }
             }
             if (monitorIndex === -1) {
-                return
+                return;
             }
 
             if (monitorIndex !== this._grabbedWindowMonitor) {
                 this._changingGrabbedMonitor = true;
                 this._moveWindowToMonitor(winWrap.getWindow(), monitorIndex);
-                this._changingGrabbedMonitor = false
+                this._changingGrabbedMonitor = false;
+            }
+            // Guard _isTiling so that tileWindows() calls triggered by itemDragged
+            // (which repositions the displaced window) don't re-enter this handler.
+            this._isTiling = true;
+            try {
+                this._monitors.get(monitorIndex)?.itemDragged(winWrap, mouseX, mouseY);
+            } finally {
+                this._isTiling = false;
             }
-            this._monitors.get(monitorIndex)?.itemDragged(winWrap, mouseX, mouseY);
         }
     }
 
+    /**
+     * Called on every position-changed event while a resize drag is in progress.
+     * Computes the pixel delta from the drag-start rect, maps it to the correct
+     * container boundary, and calls adjustBoundary() for live feedback.
+     */
+    private _handleResizeDragUpdate(winWrap: WindowWrapper): void {
+        const op    = this._resizeDragOp;
+        const winId = winWrap.getWindowId();
+
+        // Read the current mouse position — this is unclamped by the compositor
+        // and always reflects the true user intent, unlike the window's frame rect
+        // which gets clamped when adjacent windows block expansion.
+        const [mouseX, mouseY] = global.get_pointer();
+        const dx = mouseX - this._resizeDragLastMouseX;
+        const dy = mouseY - this._resizeDragLastMouseY;
+
+        if (dx === 0 && dy === 0) return;
+
+        // Update last position first so even if we return early the baseline advances
+        this._resizeDragLastMouseX = mouseX;
+        this._resizeDragLastMouseY = mouseY;
+
+        // Find the container that directly holds this window
+        const container = this._findContainerForWindowAcrossMonitors(winId);
+        if (!container) {
+            Logger.warn("_handleResizeDragUpdate: no container found for window", winId);
+            return;
+        }
+
+        const itemIndex = container._getIndexOfWindow(winId);
+        if (itemIndex === -1) return;
+
+        const isHorizontal = container._orientation === 0; // Orientation.HORIZONTAL
+
+        // Map the mouse delta to the correct boundary.
+        //
+        // East/South edge → boundary AFTER  the item (boundaryIndex = itemIndex)
+        //   positive dx/dy grows this item, shrinks the next one.
+        // West/North edge → boundary BEFORE the item (boundaryIndex = itemIndex - 1)
+        //   positive dx/dy moves the left edge right, growing the left neighbour
+        //   and shrinking this item — so we negate the delta.
+
+        const minRatio = this._getMinRatio();
+        let adjusted = false;
+        if (isHorizontal) {
+            if (op === Meta.GrabOp.RESIZING_E || op === Meta.GrabOp.RESIZING_NE || op === Meta.GrabOp.RESIZING_SE) {
+                adjusted = container.adjustBoundary(itemIndex, dx, minRatio);
+            } else if (op === Meta.GrabOp.RESIZING_W || op === Meta.GrabOp.RESIZING_NW || op === Meta.GrabOp.RESIZING_SW) {
+                adjusted = container.adjustBoundary(itemIndex - 1, dx, minRatio);
+            }
+        } else {
+            if (op === Meta.GrabOp.RESIZING_S || op === Meta.GrabOp.RESIZING_SE || op === Meta.GrabOp.RESIZING_SW) {
+                adjusted = container.adjustBoundary(itemIndex, dy, minRatio);
+            } else if (op === Meta.GrabOp.RESIZING_N || op === Meta.GrabOp.RESIZING_NE || op === Meta.GrabOp.RESIZING_NW) {
+                adjusted = container.adjustBoundary(itemIndex - 1, dy, minRatio);
+            }
+        }
+
+        // Tile all windows with the updated ratios, guarded so the resulting
+        // position-changed events don't re-enter this handler.
+        if (adjusted) {
+            this._isTiling = true;
+            try {
+                container.tileWindows();
+            } finally {
+                this._isTiling = false;
+            }
+        }
+    }
+
+    /**
+     * Searches all monitors for the WindowContainer that directly holds win_id.
+     */
+    private _findContainerForWindowAcrossMonitors(winId: number): WindowContainer | null {
+        const activeWorkspaceIndex = global.workspace_manager.get_active_workspace().index();
+        for (const monitor of this._monitors.values()) {
+            if (activeWorkspaceIndex >= monitor._workspaces.length) continue;
+            const workspace = monitor._workspaces[activeWorkspaceIndex];
+            const container = workspace.getContainerForWindow(winId);
+            if (container !== null) return container;
+        }
+        return null;
+    }
+
 
     public handleWindowMinimized(winWrap: WindowWrapper): void {
         const monitor_id = winWrap.getWindow().get_monitor()
@@ -392,7 +515,7 @@ export default class WindowManager implements IWindowManager {
     public addWindowToMonitor(window: Meta.Window) {
 
         Logger.log("ADDING WINDOW TO MONITOR", window, window);
-        var wrapper = new WindowWrapper(window, this.handleWindowMinimized)
+        var wrapper = new WindowWrapper(window, (winWrap) => this.handleWindowMinimized(winWrap))
         wrapper.connectWindowSignals(this);
         this._addWindowWrapperToMonitor(wrapper);
 
@@ -407,9 +530,13 @@ export default class WindowManager implements IWindowManager {
     }
 
     _tileMonitors(): void {
-
+        this._isTiling = true;
-        for (const monitor of this._monitors.values()) {
+        try {
-            monitor.tileWindows()
+            for (const monitor of this._monitors.values()) {
+                monitor.tileWindows();
+            }
+        } finally {
+            this._isTiling = false;
         }
     }
 
@@ -461,28 +588,176 @@ export default class WindowManager implements IWindowManager {
      * @returns The window ID of the active window, or null if no window is active
      */
     public syncActiveWindow(): number | null {
+        const focusWindow = global.display.focus_window;
+        if (focusWindow) {
+            this._activeWindowId = focusWindow.get_id();
+            Logger.debug(`Active window changed to: ${this._activeWindowId} (${focusWindow.get_title()})`);
+        } else {
+            this._activeWindowId = null;
+            Logger.debug('No active window');
+        }
+        return this._activeWindowId;
+    }
+
+    /**
+     * Toggles the orientation of the active container (the container holding the active window)
+     */
+    public toggleActiveContainerOrientation(): void {
+        if (this._activeWindowId === null) {
+            Logger.warn("No active window, cannot toggle container orientation");
+            return;
+        }
+
+        // Find the active window's container
+        const activeContainer = this._findActiveContainer();
+        if (activeContainer) {
+            activeContainer.toggleOrientation();
+        } else {
+            Logger.warn("Could not find container for active window");
+        }
+    }
+
+    /**
+     * Resets all split ratios in the active window's container to equal fractions.
+     * Bound to Ctrl+Z by default.
+     */
+    public resetActiveContainerRatios(): void {
+        if (this._activeWindowId === null) {
+            Logger.warn("No active window, cannot reset container ratios");
+            return;
+        }
+
+        const activeContainer = this._findActiveContainer();
+        if (activeContainer) {
+            Logger.info("Resetting container ratios to equal splits");
+            activeContainer.resetRatios();
+        } else {
+            Logger.warn("Could not find container for active window");
+        }
+    }
+
+    /**
+     * Finds the container that directly contains the active window
+     * @returns The container holding the active window, or null if not found
+     */
+    private _findActiveContainer(): WindowContainer | null {
+        if (this._activeWindowId === null) {
+            return null;
+        }
+
+        for (const monitor of this._monitors.values()) {
+            const activeWorkspaceIndex = global.workspace_manager.get_active_workspace().index();
+
+            // Bounds check to prevent accessing invalid workspace
+            if (activeWorkspaceIndex >= monitor._workspaces.length || activeWorkspaceIndex < 0) {
+                Logger.warn(`Active workspace index ${activeWorkspaceIndex} out of bounds for monitor with ${monitor._workspaces.length} workspaces`);
+                continue;
+            }
+
+            const workspace = monitor._workspaces[activeWorkspaceIndex];
+
+            // Check if the window is directly in the workspace container
+            const windowWrapper = workspace.getWindow(this._activeWindowId);
+            if (windowWrapper) {
+                // Try to find the parent container
+                const container = this._findContainerHoldingWindow(workspace, this._activeWindowId);
+                return container;
+            }
+        }
+
         return null;
     }
 
     /**
-     * Removes all dividers from the container with the currently active window
+     * Recursively finds the container that directly contains a specific window
+     * @param container The container to search
+     * @param windowId The window ID to find
+     * @returns The container that directly contains the window, or null if not found
      */
-    public removeAllDividersFromActiveContainer(): void {
+    private _findContainerHoldingWindow(container: WindowContainer, windowId: number): WindowContainer | null {
-        const activeWindow = global.display.focus_window;
+        // Check if this container directly contains the window
-        if (!activeWindow) {
+        for (const item of container._tiledItems) {
-            Logger.log("No active window, cannot remove dividers");
+            if (item instanceof WindowContainer) {
-            return;
+                // Recursively search nested containers
+                const result = this._findContainerHoldingWindow(item, windowId);
+                if (result) {
+                    return result;
+                }
+            } else if (item.getWindowId() === windowId) {
+                // Found it! Return this container as it directly holds the window
+                return container;
+            }
         }
 
-        const monitorId = activeWindow.get_monitor();
+        return null;
-        const monitor = this._monitors.get(monitorId);
+    }
 
-        if (monitor) {
+    /**
-            Logger.log(`Removing all dividers from monitor ${monitorId}`);
+     * Prints the tree structure of all monitors, workspaces, containers, and windows to the logs
-            monitor.removeAllDividersFromActiveContainer();
+     */
-        } else {
+    public printTreeStructure(): void {
-            Logger.warn(`Monitor ${monitorId} not found`);
+        Logger.info("=".repeat(80));
-        }
+        Logger.info("WINDOW TREE STRUCTURE");
+        Logger.info("=".repeat(80));
+        Logger.info(`Active Window ID: ${this._activeWindowId ?? 'none'}`);
+        Logger.info("=".repeat(80));
+
+        const activeWorkspaceIndex = global.workspace_manager.get_active_workspace().index();
+
+        this._monitors.forEach((monitor: Monitor, monitorId: number) => {
+            const isActiveMonitor = this._activeWindowId !== null &&
+                                   monitor.getWindow(this._activeWindowId) !== undefined;
+            const monitorMarker = isActiveMonitor ? ' *' : '';
+
+            Logger.info(`Monitor ${monitorId}${monitorMarker}:`);
+            Logger.info(`  Work Area: x=${monitor._workArea.x}, y=${monitor._workArea.y}, w=${monitor._workArea.width}, h=${monitor._workArea.height}`);
+
+            monitor._workspaces.forEach((workspace, workspaceIndex) => {
+                const isActiveWorkspace = workspaceIndex === activeWorkspaceIndex;
+                const workspaceMarker = isActiveWorkspace && isActiveMonitor ? ' *' : '';
+
+                Logger.info(`  Workspace ${workspaceIndex}${workspaceMarker}:`);
+                Logger.info(`    Orientation: ${workspace._orientation === 0 ? 'HORIZONTAL' : 'VERTICAL'}`);
+                Logger.info(`    Items: ${workspace._tiledItems.length}`);
+
+                this._printContainerTree(workspace, 4);
+            });
+        });
+
+        Logger.info("=".repeat(80));
+    }
+
+    /**
+     * Recursively prints the container tree structure
+     * @param container The container to print
+     * @param indentLevel The indentation level (number of spaces)
+     */
+    private _printContainerTree(container: any, indentLevel: number): void {
+        const indent = " ".repeat(indentLevel);
+
+        container._tiledItems.forEach((item: any, index: number) => {
+            if (item instanceof WindowContainer) {
+                // Check if this container contains the active window
+                const containsActiveWindow = this._activeWindowId !== null &&
+                                            item.getWindow(this._activeWindowId) !== undefined;
+                const containerMarker = containsActiveWindow ? ' *' : '';
+
+                Logger.info(`${indent}[${index}] Container (${item._orientation === 0 ? 'HORIZONTAL' : 'VERTICAL'})${containerMarker}:`);
+                Logger.info(`${indent}    Items: ${item._tiledItems.length}`);
+                Logger.info(`${indent}    Work Area: x=${item._workArea.x}, y=${item._workArea.y}, w=${item._workArea.width}, h=${item._workArea.height}`);
+                this._printContainerTree(item, indentLevel + 4);
+            } else {
+                const window = item.getWindow();
+                const isActiveWindow = this._activeWindowId === item.getWindowId();
+                const windowMarker = isActiveWindow ? ' *' : '';
+
+                Logger.info(`${indent}[${index}] Window ID: ${item.getWindowId()}${windowMarker}`);
+                Logger.info(`${indent}    Title: "${window.get_title()}"`);
+                Logger.info(`${indent}    Class: ${window.get_wm_class()}`);
+                const rect = item.getRect();
+                Logger.info(`${indent}    Rect: x=${rect.x}, y=${rect.y}, w=${rect.width}, h=${rect.height}`);
+            }
+        });
     }
 
 

tsconfig.json

@@ -5,6 +5,8 @@
     "outDir": "./dist",
     "sourceMap": false,
     "strict": true,
+    "noImplicitAny": false,
+    "skipLibCheck": true,
     "target": "ES2022",
     "lib": [
       "ES2022"