chore(release): publish v4.2.5

883 tab overflow dropdown doesnt collide with edge of screen

README.md

@@ -35,4 +35,4 @@ Please see the website: https://dockview.dev
 -   Transparent builds and Code Analysis
 -   Security at mind - verifed publishing and builds through GitHub Actions
 
-Want to verify our builds? Go [here](https://www.npmjs.com/package/dockview#Provenance).
+Want to verify our builds? Go [here](https://www.npmjs.com/package/dockview#user-content-provenance).

lerna.json

@@ -2,7 +2,7 @@
   "packages": [
     "packages/*"
   ],
-  "version": "4.0.0",
+  "version": "4.2.5",
   "npmClient": "yarn",
   "command": {
     "publish": {

package.json

@@ -58,7 +58,7 @@
     "jest-environment-jsdom": "^29.7.0",
     "jest-sonar-reporter": "^2.0.0",
     "jsdom": "^23.0.1",
-    "lerna": "^8.0.1",
+    "lerna": "^8.2.1",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",
     "rimraf": "^5.0.5",

packages/dockview-angular/package.json

@@ -1,6 +1,6 @@
 {
   "name": "dockview-angular",
-  "version": "4.0.0",
+  "version": "4.2.5",
   "description": "Zero dependency layout manager supporting tabs, grids and splitviews",
   "keywords": [
     "splitview",
@@ -54,6 +54,6 @@
     "test:cov": "cross-env ../../node_modules/.bin/jest --selectProjects dockview --coverage"
   },
   "dependencies": {
-    "dockview-core": "^4.0.0"
+    "dockview-core": "^4.2.5"
   }
 }

packages/dockview-core/package.json

@@ -1,6 +1,6 @@
 {
   "name": "dockview-core",
-  "version": "4.0.0",
+  "version": "4.2.5",
   "description": "Zero dependency layout manager supporting tabs, grids and splitviews",
   "keywords": [
     "splitview",

packages/dockview-core/src/__tests__/dockview/components/titlebar/tabs.spec.ts

@@ -0,0 +1,66 @@
+import { Tabs } from '../../../../dockview/components/titlebar/tabs';
+import { fromPartial } from '@total-typescript/shoehorn';
+import { DockviewGroupPanel } from '../../../../dockview/dockviewGroupPanel';
+import { DockviewComponent } from '../../../../dockview/dockviewComponent';
+
+describe('tabs', () => {
+    describe('disableCustomScrollbars', () => {
+        test('enabled by default', () => {
+            const cut = new Tabs(
+                fromPartial<DockviewGroupPanel>({}),
+                fromPartial<DockviewComponent>({
+                    options: {},
+                }),
+                {
+                    showTabsOverflowControl: true,
+                }
+            );
+
+            expect(
+                cut.element.querySelectorAll(
+                    '.dv-scrollable > .dv-tabs-container'
+                ).length
+            ).toBe(1);
+        });
+
+        test('enabled when disabled flag is false', () => {
+            const cut = new Tabs(
+                fromPartial<DockviewGroupPanel>({}),
+                fromPartial<DockviewComponent>({
+                    options: {
+                        scrollbars: 'custom',
+                    },
+                }),
+                {
+                    showTabsOverflowControl: true,
+                }
+            );
+
+            expect(
+                cut.element.querySelectorAll(
+                    '.dv-scrollable > .dv-tabs-container'
+                ).length
+            ).toBe(1);
+        });
+
+        test('disabled when disabled flag is true', () => {
+            const cut = new Tabs(
+                fromPartial<DockviewGroupPanel>({}),
+                fromPartial<DockviewComponent>({
+                    options: {
+                        scrollbars: 'native',
+                    },
+                }),
+                {
+                    showTabsOverflowControl: true,
+                }
+            );
+
+            expect(
+                cut.element.querySelectorAll(
+                    '.dv-scrollable > .dv-tabs-container'
+                ).length
+            ).toBe(0);
+        });
+    });
+});

packages/dockview-core/src/__tests__/dockview/dockviewComponent.spec.ts

@@ -272,6 +272,59 @@ describe('dockviewComponent', () => {
     });
 
     describe('move group', () => {
+        test('that moving a popup group into the grid manages view disposals correctly', async () => {
+            window.open = () => setupMockWindow();
+
+            dockview = new DockviewComponent(container, {
+                createComponent(options) {
+                    switch (options.name) {
+                        case 'default':
+                            return new PanelContentPartTest(
+                                options.id,
+                                options.name
+                            );
+                        default:
+                            throw new Error(`unsupported`);
+                    }
+                },
+            });
+
+            dockview.layout(600, 1000);
+
+            const panel1 = dockview.addPanel({
+                id: 'panel1',
+                component: 'default',
+            });
+            const panel2 = dockview.addPanel({
+                id: 'panel2',
+                component: 'default',
+                position: { direction: 'right' },
+            });
+            const panel3 = dockview.addPanel({
+                id: 'panel3',
+                component: 'default',
+                position: { direction: 'right' },
+            });
+
+            await dockview.addPopoutGroup(panel1.api.group);
+
+            expect(panel1.api.location.type).toBe('popout');
+            expect(dockview.groups.length).toBe(4);
+            expect(dockview.panels.length).toBe(3);
+
+            panel1.api.group.api.moveTo({
+                group: panel2.api.group,
+                position: 'left',
+            });
+
+            expect(panel1.api.location.type).toBe('grid');
+            expect(dockview.groups.length).toBe(3);
+            expect(dockview.panels.length).toBe(3);
+
+            const query = dockview.element.querySelectorAll('.dv-view');
+            expect(query.length).toBe(3);
+        });
+
         test('horizontal', () => {
             dockview = new DockviewComponent(container, {
                 createComponent(options) {
@@ -6729,4 +6782,78 @@ describe('dockviewComponent', () => {
         expect(api.panels.length).toBe(3);
         expect(api.groups.length).toBe(3);
     });
+
+    test('add group with custom group is', () => {
+        const container = document.createElement('div');
+
+        const dockview = new DockviewComponent(container, {
+            createComponent(options) {
+                switch (options.name) {
+                    case 'default':
+                        return new PanelContentPartTest(
+                            options.id,
+                            options.name
+                        );
+                    default:
+                        throw new Error(`unsupported`);
+                }
+            },
+        });
+        const api = new DockviewApi(dockview);
+
+        dockview.layout(1000, 1000);
+
+        const panel1 = api.addPanel({
+            id: 'panel_1',
+            component: 'default',
+        });
+
+        const group1 = api.addGroup({
+            id: 'group_1',
+            direction: 'left',
+        });
+
+        const group2 = api.addGroup({
+            id: 'group_2',
+            direction: 'left',
+            referencePanel: panel1,
+        });
+
+        const group3 = api.addGroup({
+            id: 'group_3',
+            direction: 'left',
+            referenceGroup: panel1.api.group,
+        });
+
+        expect(group1.api.id).toBe('group_1');
+        expect(group2.api.id).toBe('group_2');
+        expect(group3.api.id).toBe('group_3');
+    });
+
+    describe('dndEdges', () => {
+        test('that can init dndEdges property', () => {
+            const container = document.createElement('div');
+
+            const dockview = new DockviewComponent(container, {
+                createComponent(options) {
+                    switch (options.name) {
+                        case 'default':
+                            return new PanelContentPartTest(
+                                options.id,
+                                options.name
+                            );
+                        default:
+                            throw new Error(`unsupported`);
+                    }
+                },
+                dndEdges: {
+                    size: { value: 100, type: 'pixels' },
+                    activationSize: { value: 5, type: 'percentage' },
+                },
+            });
+            const api = new DockviewApi(dockview);
+
+            dockview.layout(1000, 1000);
+        });
+    });
 });

packages/dockview-core/src/__tests__/events.spec.ts

@@ -3,7 +3,6 @@ import {
     Emitter,
     Event,
     addDisposableListener,
-    addDisposableWindowListener,
 } from '../events';
 
 describe('events', () => {
@@ -143,7 +142,7 @@ describe('events', () => {
         expect(value).toBe(3);
     });
 
-    it('addDisposableWindowListener with capture options', () => {
+    it('addDisposableListener with capture options', () => {
         const element = {
             addEventListener: jest.fn(),
             removeEventListener: jest.fn(),
@@ -151,7 +150,7 @@ describe('events', () => {
 
         const handler = jest.fn();
 
-        const disposable = addDisposableWindowListener(
+        const disposable = addDisposableListener(
             element as any,
             'pointerdown',
             handler,
@@ -177,7 +176,7 @@ describe('events', () => {
         );
     });
 
-    it('addDisposableWindowListener without capture options', () => {
+    it('addDisposableListener without capture options', () => {
         const element = {
             addEventListener: jest.fn(),
             removeEventListener: jest.fn(),
@@ -185,7 +184,7 @@ describe('events', () => {
 
         const handler = jest.fn();
 
-        const disposable = addDisposableWindowListener(
+        const disposable = addDisposableListener(
             element as any,
             'pointerdown',
             handler

packages/dockview-core/src/__tests__/gridview/gridviewComponent.spec.ts

@@ -198,6 +198,8 @@ describe('gridview', () => {
             },
         });
 
+        expect(container.querySelectorAll('.dv-grid-view').length).toBe(1);
+
         gridview.layout(800, 400);
         gridview.fromJSON({
             grid: {
@@ -242,6 +244,9 @@ describe('gridview', () => {
             },
             activePanel: 'panel_1',
         });
+
+        expect(container.querySelectorAll('.dv-grid-view').length).toBe(1);
+
         gridview.layout(800, 400, true);
 
         const panel1 = gridview.getPanel('panel_1')!;

packages/dockview-core/src/__tests__/paneview/paneview.spec.ts

@@ -56,22 +56,28 @@ describe('paneview', () => {
             paneview.onDidRemoveView((view) => removed.push(view))
         );
 
-        const view1 = new TestPanel(
-            'id',
-            'component',
-            'headerComponent',
-            Orientation.VERTICAL,
-            true,
-            true
-        );
-        const view2 = new TestPanel(
-            'id2',
-            'component',
-            'headerComponent',
-            Orientation.VERTICAL,
-            true,
-            true
-        );
+        const view1 = new TestPanel({
+            id: 'id',
+            component: 'component',
+            headerComponent: 'headerComponent',
+            orientation: Orientation.VERTICAL,
+            isExpanded: true,
+            isHeaderVisible: true,
+            headerSize: 22,
+            minimumBodySize: 0,
+            maximumBodySize: Number.MAX_SAFE_INTEGER,
+        });
+        const view2 = new TestPanel({
+            id: 'id2',
+            component: 'component',
+            headerComponent: 'headerComponent',
+            orientation: Orientation.VERTICAL,
+            isExpanded: true,
+            isHeaderVisible: true,
+            headerSize: 22,
+            minimumBodySize: 0,
+            maximumBodySize: Number.MAX_SAFE_INTEGER,
+        });
 
         expect(added.length).toBe(0);
         expect(removed.length).toBe(0);
@@ -106,22 +112,28 @@ describe('paneview', () => {
             orientation: Orientation.HORIZONTAL,
         });
 
-        const view1 = new TestPanel(
-            'id',
-            'component',
-            'headerComponent',
-            Orientation.VERTICAL,
-            true,
-            true
-        );
-        const view2 = new TestPanel(
-            'id2',
-            'component',
-            'headerComponent',
-            Orientation.VERTICAL,
-            true,
-            true
-        );
+        const view1 = new TestPanel({
+            id: 'id',
+            component: 'component',
+            headerComponent: 'headerComponent',
+            orientation: Orientation.VERTICAL,
+            isExpanded: true,
+            isHeaderVisible: true,
+            headerSize: 22,
+            minimumBodySize: 0,
+            maximumBodySize: Number.MAX_SAFE_INTEGER,
+        });
+        const view2 = new TestPanel({
+            id: 'id2',
+            component: 'component',
+            headerComponent: 'headerComponent',
+            orientation: Orientation.VERTICAL,
+            isExpanded: true,
+            isHeaderVisible: true,
+            headerSize: 22,
+            minimumBodySize: 0,
+            maximumBodySize: Number.MAX_SAFE_INTEGER,
+        });
 
         paneview.addPane(view1);
         paneview.addPane(view2);

packages/dockview-core/src/__tests__/paneview/paneviewComponent.spec.ts

@@ -11,7 +11,17 @@ import { Orientation } from '../../splitview/splitview';
 
 class TestPanel extends PaneviewPanel {
     constructor(id: string, component: string) {
-        super(id, component, 'header', Orientation.VERTICAL, false, true);
+        super({
+            id,
+            component,
+            headerComponent: 'header',
+            orientation: Orientation.VERTICAL,
+            isExpanded: false,
+            isHeaderVisible: true,
+            headerSize: 22,
+            minimumBodySize: 0,
+            maximumBodySize: Number.MAX_SAFE_INTEGER,
+        });
     }
 
     getHeaderComponent() {
@@ -59,7 +69,7 @@ class TestPanel extends PaneviewPanel {
     }
 }
 
-describe('componentPaneview', () => {
+describe('paneviewComponent', () => {
     let container: HTMLElement;
 
     beforeEach(() => {
@@ -180,6 +190,8 @@ describe('componentPaneview', () => {
             },
         });
 
+        expect(container.querySelectorAll('.dv-pane-container').length).toBe(1);
+
         paneview.fromJSON({
             size: 6,
             views: [
@@ -212,6 +224,8 @@ describe('componentPaneview', () => {
             ],
         });
 
+        expect(container.querySelectorAll('.dv-pane-container').length).toBe(1);
+
         paneview.layout(400, 800);
 
         const panel1 = paneview.getPanel('panel1');
@@ -255,7 +269,7 @@ describe('componentPaneview', () => {
                         title: 'Panel 1',
                     },
                     expanded: true,
-                    minimumSize: 100,
+                    headerSize: 22,
                 },
                 {
                     size: 22,
@@ -265,7 +279,7 @@ describe('componentPaneview', () => {
                         title: 'Panel 2',
                     },
                     expanded: false,
-                    minimumSize: 100,
+                    headerSize: 22,
                 },
                 {
                     size: 22,
@@ -275,7 +289,7 @@ describe('componentPaneview', () => {
                         title: 'Panel 3',
                     },
                     expanded: false,
-                    minimumSize: 100,
+                    headerSize: 22,
                 },
             ],
         });
@@ -450,6 +464,7 @@ describe('componentPaneview', () => {
                         component: 'default',
                         title: 'Panel 1',
                     },
+                    minimumSize: 100,
                     expanded: true,
                 },
                 {
@@ -486,26 +501,27 @@ describe('componentPaneview', () => {
                     },
                     expanded: true,
                     minimumSize: 100,
+                    headerSize: 22,
                 },
                 {
-                    size: 122,
+                    size: 22,
                     data: {
                         id: 'panel2',
                         component: 'default',
                         title: 'Panel 2',
                     },
                     expanded: true,
-                    minimumSize: 100,
+                    headerSize: 22,
                 },
                 {
-                    size: 356,
+                    size: 456,
                     data: {
                         id: 'panel3',
                         component: 'default',
                         title: 'Panel 3',
                     },
                     expanded: true,
-                    minimumSize: 100,
+                    headerSize: 22,
                 },
             ],
         });

packages/dockview-core/src/__tests__/splitview/splitviewComponent.spec.ts

@@ -395,6 +395,10 @@ describe('componentSplitview', () => {
         });
         splitview.layout(400, 6);
 
+        expect(
+            container.querySelectorAll('.dv-split-view-container').length
+        ).toBe(1);
+
         splitview.fromJSON({
             views: [
                 {
@@ -414,6 +418,10 @@ describe('componentSplitview', () => {
             activeView: 'panel1',
         });
 
+        expect(
+            container.querySelectorAll('.dv-split-view-container').length
+        ).toBe(1);
+
         expect(splitview.length).toBe(3);
 
         expect(JSON.parse(JSON.stringify(splitview.toJSON()))).toEqual({

packages/dockview-core/src/api/component.api.ts

@@ -3,6 +3,8 @@ import {
     FloatingGroupOptions,
     IDockviewComponent,
     MovePanelEvent,
+    PopoutGroupChangePositionEvent,
+    PopoutGroupChangeSizeEvent,
     SerializedDockview,
 } from '../dockview/dockviewComponent';
 import {
@@ -629,7 +631,6 @@ export class DockviewApi implements CommonApi<SerializedDockview> {
         return this.component.totalPanels;
     }
 
-
     /**
      * Invoked when the active group changes. May be undefined if no group is active.
      */
@@ -740,6 +741,14 @@ export class DockviewApi implements CommonApi<SerializedDockview> {
         return this.component.onUnhandledDragOverEvent;
     }
 
+    get onDidPopoutGroupSizeChange(): Event<PopoutGroupChangeSizeEvent> {
+        return this.component.onDidPopoutGroupSizeChange;
+    }
+
+    get onDidPopoutGroupPositionChange(): Event<PopoutGroupChangePositionEvent> {
+        return this.component.onDidPopoutGroupPositionChange;
+    }
+
     /**
      * All panel objects.
      */

packages/dockview-core/src/dnd/ghost.ts

@@ -8,6 +8,9 @@ export function addGhostImage(
     // class dockview provides to force ghost image to be drawn on a different layer and prevent weird rendering issues
     addClasses(ghostElement, 'dv-dragged');
 
+    // move the element off-screen initially otherwise it may in some cases be rendered at (0,0) momentarily
+    ghostElement.style.top = '-9999px';
+
     document.body.appendChild(ghostElement);
     dataTransfer.setDragImage(ghostElement, options?.x ?? 0, options?.y ?? 0);
 

packages/dockview-core/src/dockview/components/popupService.ts

@@ -1,4 +1,5 @@
-import { addDisposableWindowListener } from '../../events';
+import { shiftAbsoluteElementIntoView } from '../../dom';
+import { addDisposableListener } from '../../events';
 import {
     CompositeDisposable,
     Disposable,
@@ -29,13 +30,13 @@ export class PopupService extends CompositeDisposable {
 
     openPopover(
         element: HTMLElement,
-        position: { x: number; y: number }
+        position: { x: number; y: number; zIndex?: string }
     ): void {
         this.close();
 
         const wrapper = document.createElement('div');
         wrapper.style.position = 'absolute';
-        wrapper.style.zIndex = '99';
+        wrapper.style.zIndex = position.zIndex ?? 'var(--dv-overlay-z-index)';
         wrapper.appendChild(element);
 
         const anchorBox = this._element.getBoundingClientRect();
@@ -50,7 +51,7 @@ export class PopupService extends CompositeDisposable {
         this._active = wrapper;
 
         this._activeDisposable.value = new CompositeDisposable(
-            addDisposableWindowListener(window, 'pointerdown', (event) => {
+            addDisposableListener(window, 'pointerdown', (event) => {
                 const target = event.target;
 
                 if (!(target instanceof HTMLElement)) {
@@ -70,6 +71,10 @@ export class PopupService extends CompositeDisposable {
                 this.close();
             })
         );
+
+        requestAnimationFrame(() => {
+            shiftAbsoluteElementIntoView(wrapper, this.root);
+        });
     }
 
     close(): void {

packages/dockview-core/src/dockview/components/titlebar/tabs.scss

@@ -1,20 +1,11 @@
 .dv-tabs-container {
     display: flex;
     height: 100%;
-    overflow: hidden;
+    overflow: auto;
     scrollbar-width: thin; // firefox
 
     &.dv-horizontal {
-        .dv-tabs-container {
         .dv-tab {
-                &:last-child {
-                    margin-right: 0;
-                }
-
-                &:not(:nth-last-child(1)) {
-                    margin-left: 0;
-                }
-
             &:not(:first-child)::before {
                 content: ' ';
                 position: absolute;
@@ -28,7 +19,6 @@
             }
         }
     }
-    }
 
     &::-webkit-scrollbar {
         height: 3px;
@@ -45,6 +35,12 @@
     }
 }
 
+.dv-scrollable {
+    > .dv-tabs-container {
+        overflow: hidden;
+    }
+}
+
 .dv-tab {
     -webkit-user-drag: element;
     outline: none;

packages/dockview-core/src/dockview/components/titlebar/tabs.ts

@@ -101,13 +101,17 @@ export class Tabs extends CompositeDisposable {
 
         this.showTabsOverflowControl = options.showTabsOverflowControl;
 
+        if (accessor.options.scrollbars === 'native') {
+            this._element = this._tabsList;
+        } else {
             const scrollbar = new Scrollbar(this._tabsList);
             this._element = scrollbar.element;
+            this.addDisposables(scrollbar);
+        }
 
         this.addDisposables(
             this._onOverflowTabsChange,
             this._observerDisposable,
-            scrollbar,
             this._onWillShowOverlay,
             this._onDrop,
             this._onTabDragStart,

packages/dockview-core/src/dockview/components/titlebar/tabsContainer.scss

@@ -7,11 +7,16 @@
     font-size: var(--dv-tabs-and-actions-container-font-size);
 
     &.dv-single-tab.dv-full-width-single-tab {
+        .dv-scrollable {
+            flex-grow: 1;
+        }
+
         .dv-tabs-container {
             flex-grow: 1;
 
             .dv-tab {
                 flex-grow: 1;
+                padding: 0px;
             }
         }
 

packages/dockview-core/src/dockview/components/titlebar/tabsContainer.ts

@@ -8,7 +8,7 @@ import { addDisposableListener, Emitter, Event } from '../../../events';
 import { Tab } from '../tab/tab';
 import { DockviewGroupPanel } from '../../dockviewGroupPanel';
 import { VoidContainer } from './voidContainer';
-import { toggleClass } from '../../../dom';
+import { findRelativeZIndexParent, toggleClass } from '../../../dom';
 import { IDockviewPanel } from '../../dockviewPanel';
 import { DockviewComponent } from '../../dockviewComponent';
 import { WillShowOverlayLocationEvent } from '../../dockviewGroupPanelModel';
@@ -152,6 +152,8 @@ export class TabsContainer
         this._element.appendChild(this.rightActionsContainer);
 
         this.addDisposables(
+            this.tabs.onDrop((e) => this._onDrop.fire(e)),
+            this.tabs.onWillShowOverlay((e) => this._onWillShowOverlay.fire(e)),
             accessor.onDidOptionsChange(() => {
                 this.tabs.showTabsOverflowControl =
                     !accessor.options.disableTabsOverflowList;
@@ -376,7 +378,7 @@ export class TabsContainer
                         !panelObject.api.isActive
                     );
 
-                    wrapper.addEventListener('mousedown', () => {
+                    wrapper.addEventListener('pointerdown', () => {
                         this.accessor.popupService.close();
                         tab.element.scrollIntoView();
                         tab.panel.api.setActive();
@@ -386,9 +388,14 @@ export class TabsContainer
                     el.appendChild(wrapper);
                 }
 
+                const relativeParent = findRelativeZIndexParent(root);
+
                 this.accessor.popupService.openPopover(el, {
                     x: event.clientX,
                     y: event.clientY,
+                    zIndex: relativeParent?.style.zIndex
+                        ? `calc(${relativeParent.style.zIndex} * 2)`
+                        : undefined,
                 });
             })
         );

packages/dockview-core/src/dockview/dockviewComponent.scss

@@ -18,10 +18,8 @@
 
 .dv-groupview {
     &.dv-active-group {
-        > .dv-tabs-and-actions-container
-            > .dv-scrollable
-            > .dv-tabs-container
-            > .dv-tab {
+        > .dv-tabs-and-actions-container {
+            .dv-tabs-container > .dv-tab {
                 &.dv-active-tab {
                     background-color: var(
                         --dv-activegroup-visiblepanel-tab-background-color
@@ -36,11 +34,10 @@
                 }
             }
         }
+    }
     &.dv-inactive-group {
-        > .dv-tabs-and-actions-container
-            > .dv-scrollable
-            > .dv-tabs-container
-            > .dv-tab {
+        > .dv-tabs-and-actions-container {
+            .dv-tabs-container > .dv-tab {
                 &.dv-active-tab {
                     background-color: var(
                         --dv-inactivegroup-visiblepanel-tab-background-color
@@ -56,6 +53,7 @@
             }
         }
     }
+}
 
 /**
  * when a tab is dragged we lose the above stylings because they are conditional on parent elements

packages/dockview-core/src/dockview/dockviewComponent.ts

@@ -14,7 +14,7 @@ import {
 import { tail, sequenceEquals, remove } from '../array';
 import { DockviewPanel, IDockviewPanel } from './dockviewPanel';
 import { CompositeDisposable, Disposable } from '../lifecycle';
-import { Event, Emitter, addDisposableWindowListener } from '../events';
+import { Event, Emitter, addDisposableListener } from '../events';
 import { Watermark } from './components/watermark/watermark';
 import { IWatermarkRenderer, GroupviewPanelState } from './types';
 import { sequentialNumberGenerator } from '../math';
@@ -56,6 +56,8 @@ import {
     addTestId,
     Classnames,
     getDockviewTheme,
+    onDidWindowResizeEnd,
+    onDidWindowMoveEnd,
     toggleClass,
     watchElementResize,
 } from '../dom';
@@ -190,6 +192,18 @@ export interface DockviewMaximizedGroupChanged {
     isMaximized: boolean;
 }
 
+export interface PopoutGroupChangeSizeEvent {
+    width: number;
+    height: number;
+    group: DockviewGroupPanel;
+}
+
+export interface PopoutGroupChangePositionEvent {
+    screenX: number;
+    screenY: number;
+    group: DockviewGroupPanel;
+}
+
 export interface IDockviewComponent extends IBaseGrid<DockviewGroupPanel> {
     readonly activePanel: IDockviewPanel | undefined;
     readonly totalPanels: number;
@@ -210,6 +224,8 @@ export interface IDockviewComponent extends IBaseGrid<DockviewGroupPanel> {
     readonly onUnhandledDragOverEvent: Event<DockviewDndOverlayEvent>;
     readonly onDidMovePanel: Event<MovePanelEvent>;
     readonly onDidMaximizedGroupChange: Event<DockviewMaximizedGroupChanged>;
+    readonly onDidPopoutGroupSizeChange: Event<PopoutGroupChangeSizeEvent>;
+    readonly onDidPopoutGroupPositionChange: Event<PopoutGroupChangePositionEvent>;
     readonly options: DockviewComponentOptions;
     updateOptions(options: DockviewOptions): void;
     moveGroupOrPanel(options: MoveGroupOrPanelOptions): void;
@@ -293,6 +309,16 @@ export class DockviewComponent
     private readonly _onDidAddPanel = new Emitter<IDockviewPanel>();
     readonly onDidAddPanel: Event<IDockviewPanel> = this._onDidAddPanel.event;
 
+    private readonly _onDidPopoutGroupSizeChange =
+        new Emitter<PopoutGroupChangeSizeEvent>();
+    readonly onDidPopoutGroupSizeChange: Event<PopoutGroupChangeSizeEvent> =
+        this._onDidPopoutGroupSizeChange.event;
+
+    private readonly _onDidPopoutGroupPositionChange =
+        new Emitter<PopoutGroupChangePositionEvent>();
+    readonly onDidPopoutGroupPositionChange: Event<PopoutGroupChangePositionEvent> =
+        this._onDidPopoutGroupPositionChange.event;
+
     private readonly _onDidLayoutFromJSON = new Emitter<void>();
     readonly onDidLayoutFromJSON: Event<void> = this._onDidLayoutFromJSON.event;
 
@@ -386,11 +412,11 @@ export class DockviewComponent
             className: options.className,
         });
 
+        this._options = options;
+
         this.popupService = new PopupService(this.element);
-
-        this.updateDropTargetModel(options);
-
         this._themeClassnames = new Classnames(this.element);
+        this._api = new DockviewApi(this);
 
         this.rootDropTargetContainer = new DropTargetAnchorContainer(
             this.element,
@@ -401,88 +427,6 @@ export class DockviewComponent
             this
         );
 
-        toggleClass(this.gridview.element, 'dv-dockview', true);
-        toggleClass(this.element, 'dv-debug', !!options.debug);
-
-        if (options.debug) {
-            this.addDisposables(new StrictEventsSequencing(this));
-        }
-
-        this.addDisposables(
-            this.rootDropTargetContainer,
-            this.overlayRenderContainer,
-            this._onWillDragPanel,
-            this._onWillDragGroup,
-            this._onWillShowOverlay,
-            this._onDidActivePanelChange,
-            this._onDidAddPanel,
-            this._onDidRemovePanel,
-            this._onDidLayoutFromJSON,
-            this._onDidDrop,
-            this._onWillDrop,
-            this._onDidMovePanel,
-            this._onDidAddGroup,
-            this._onDidRemoveGroup,
-            this._onDidActiveGroupChange,
-            this._onUnhandledDragOverEvent,
-            this._onDidMaximizedGroupChange,
-            this._onDidOptionsChange,
-            this.onDidViewVisibilityChangeMicroTaskQueue(() => {
-                this.updateWatermark();
-            }),
-            this.onDidAdd((event) => {
-                if (!this._moving) {
-                    this._onDidAddGroup.fire(event);
-                }
-            }),
-            this.onDidRemove((event) => {
-                if (!this._moving) {
-                    this._onDidRemoveGroup.fire(event);
-                }
-            }),
-            this.onDidActiveChange((event) => {
-                if (!this._moving) {
-                    this._onDidActiveGroupChange.fire(event);
-                }
-            }),
-            this.onDidMaximizedChange((event) => {
-                this._onDidMaximizedGroupChange.fire({
-                    group: event.panel,
-                    isMaximized: event.isMaximized,
-                });
-            }),
-            Event.any(
-                this.onDidAdd,
-                this.onDidRemove
-            )(() => {
-                this.updateWatermark();
-            }),
-            Event.any<unknown>(
-                this.onDidAddPanel,
-                this.onDidRemovePanel,
-                this.onDidAddGroup,
-                this.onDidRemove,
-                this.onDidMovePanel,
-                this.onDidActivePanelChange
-            )(() => {
-                this._bufferOnDidLayoutChange.fire();
-            }),
-            Disposable.from(() => {
-                // iterate over a copy of the array since .dispose() mutates the original array
-                for (const group of [...this._floatingGroups]) {
-                    group.dispose();
-                }
-
-                // iterate over a copy of the array since .dispose() mutates the original array
-                for (const group of [...this._popoutGroups]) {
-                    group.disposable.dispose();
-                }
-            })
-        );
-
-        this._options = options;
-        this.updateTheme();
-
         this._rootDropTarget = new Droptarget(this.element, {
             className: 'dv-drop-target-edge',
             canDisplayOverlay: (event, position) => {
@@ -524,11 +468,96 @@ export class DockviewComponent
             },
             acceptedTargetZones: ['top', 'bottom', 'left', 'right', 'center'],
             overlayModel:
-                this.options.rootOverlayModel ?? DEFAULT_ROOT_OVERLAY_MODEL,
+                options.rootOverlayModel ?? DEFAULT_ROOT_OVERLAY_MODEL,
             getOverrideTarget: () => this.rootDropTargetContainer?.model,
         });
 
+        this.updateDropTargetModel(options);
+
+        toggleClass(this.gridview.element, 'dv-dockview', true);
+        toggleClass(this.element, 'dv-debug', !!options.debug);
+
+        this.updateTheme();
+        this.updateWatermark();
+
+        if (options.debug) {
+            this.addDisposables(new StrictEventsSequencing(this));
+        }
+
         this.addDisposables(
+            this.rootDropTargetContainer,
+            this.overlayRenderContainer,
+            this._onWillDragPanel,
+            this._onWillDragGroup,
+            this._onWillShowOverlay,
+            this._onDidActivePanelChange,
+            this._onDidAddPanel,
+            this._onDidRemovePanel,
+            this._onDidLayoutFromJSON,
+            this._onDidDrop,
+            this._onWillDrop,
+            this._onDidMovePanel,
+            this._onDidAddGroup,
+            this._onDidRemoveGroup,
+            this._onDidActiveGroupChange,
+            this._onUnhandledDragOverEvent,
+            this._onDidMaximizedGroupChange,
+            this._onDidOptionsChange,
+            this._onDidPopoutGroupSizeChange,
+            this._onDidPopoutGroupPositionChange,
+            this.onDidViewVisibilityChangeMicroTaskQueue(() => {
+                this.updateWatermark();
+            }),
+            this.onDidAdd((event) => {
+                if (!this._moving) {
+                    this._onDidAddGroup.fire(event);
+                }
+            }),
+            this.onDidRemove((event) => {
+                if (!this._moving) {
+                    this._onDidRemoveGroup.fire(event);
+                }
+            }),
+            this.onDidActiveChange((event) => {
+                if (!this._moving) {
+                    this._onDidActiveGroupChange.fire(event);
+                }
+            }),
+            this.onDidMaximizedChange((event) => {
+                this._onDidMaximizedGroupChange.fire({
+                    group: event.panel,
+                    isMaximized: event.isMaximized,
+                });
+            }),
+            Event.any(
+                this.onDidAdd,
+                this.onDidRemove
+            )(() => {
+                this.updateWatermark();
+            }),
+            Event.any<unknown>(
+                this.onDidAddPanel,
+                this.onDidRemovePanel,
+                this.onDidAddGroup,
+                this.onDidRemove,
+                this.onDidMovePanel,
+                this.onDidActivePanelChange,
+                this.onDidPopoutGroupPositionChange,
+                this.onDidPopoutGroupSizeChange
+            )(() => {
+                this._bufferOnDidLayoutChange.fire();
+            }),
+            Disposable.from(() => {
+                // iterate over a copy of the array since .dispose() mutates the original array
+                for (const group of [...this._floatingGroups]) {
+                    group.dispose();
+                }
+
+                // iterate over a copy of the array since .dispose() mutates the original array
+                for (const group of [...this._popoutGroups]) {
+                    group.disposable.dispose();
+                }
+            }),
             this._rootDropTarget,
             this._rootDropTarget.onWillShowOverlay((event) => {
                 if (this.gridview.length > 0 && event.position === 'center') {
@@ -591,10 +620,6 @@ export class DockviewComponent
             }),
             this._rootDropTarget
         );
-
-        this._api = new DockviewApi(this);
-
-        this.updateWatermark();
     }
 
     override setVisible(panel: DockviewGroupPanel, visible: boolean): void {
@@ -832,22 +857,37 @@ export class DockviewComponent
                     },
                 };
 
+                const _onDidWindowPositionChange = onDidWindowMoveEnd(
+                    _window.window!
+                );
+
                 popoutWindowDisposable.addDisposables(
+                    _onDidWindowPositionChange,
+                    onDidWindowResizeEnd(_window.window!, () => {
+                        this._onDidPopoutGroupSizeChange.fire({
+                            width: _window.window!.innerWidth,
+                            height: _window.window!.innerHeight,
+                            group,
+                        });
+                    }),
+                    _onDidWindowPositionChange.event(() => {
+                        this._onDidPopoutGroupPositionChange.fire({
+                            screenX: _window.window!.screenX,
+                            screenY: _window.window!.screenX,
+                            group,
+                        });
+                    }),
                     /**
                      * ResizeObserver seems slow here, I do not know why but we don't need it
                      * since we can reply on the window resize event as we will occupy the full
                      * window dimensions
                      */
-                    addDisposableWindowListener(
-                        _window.window!,
-                        'resize',
-                        () => {
+                    addDisposableListener(_window.window!, 'resize', () => {
                         group.layout(
                             _window.window!.innerWidth,
                             _window.window!.innerHeight
                         );
-                        }
-                    ),
+                    }),
                     overlayRenderContainer,
                     Disposable.from(() => {
                         if (this.isDisposed) {
@@ -1131,7 +1171,10 @@ export class DockviewComponent
         this.updateWatermark();
     }
 
-    private orthogonalize(position: Position): DockviewGroupPanel {
+    private orthogonalize(
+        position: Position,
+        options?: GroupOptions
+    ): DockviewGroupPanel {
         switch (position) {
             case 'top':
             case 'bottom':
@@ -1157,10 +1200,14 @@ export class DockviewComponent
             case 'top':
             case 'left':
             case 'center':
-                return this.createGroupAtLocation([0]); // insert into first position
+                return this.createGroupAtLocation([0], undefined, options); // insert into first position
             case 'bottom':
             case 'right':
-                return this.createGroupAtLocation([this.gridview.length]); // insert into last position
+                return this.createGroupAtLocation(
+                    [this.gridview.length],
+                    undefined,
+                    options
+                ); // insert into last position
             default:
                 throw new Error(`unsupported position ${position}`);
         }
@@ -1835,7 +1882,8 @@ export class DockviewComponent
                 }
             } else {
                 const group = this.orthogonalize(
-                    directionToPosition(<Direction>options.direction)
+                    directionToPosition(<Direction>options.direction),
+                    options
                 );
                 if (!options.skipSetActive) {
                     this.doSetGroupAndPanelActive(group);
@@ -2284,6 +2332,7 @@ export class DockviewComponent
                 }
             }
 
+            if (from.api.location.type !== 'popout') {
                 const referenceLocation = getGridLocation(to.element);
                 const dropLocation = getRelativeLocation(
                     this.gridview.orientation,
@@ -2310,6 +2359,7 @@ export class DockviewComponent
 
                 this.gridview.addView(from, size, dropLocation);
             }
+        }
 
         from.panels.forEach((panel) => {
             this._onDidMovePanel.fire({ panel, from });
@@ -2503,9 +2553,10 @@ export class DockviewComponent
 
     private createGroupAtLocation(
         location: number[],
-        size?: number
+        size?: number,
+        options?: GroupOptions
     ): DockviewGroupPanel {
-        const group = this.createGroup();
+        const group = this.createGroup(options);
         this.doAddGroup(group, location, size);
         return group;
     }

packages/dockview-core/src/dockview/options.ts

@@ -69,6 +69,13 @@ export interface DockviewOptions {
     noPanelsOverlay?: 'emptyGroup' | 'watermark';
     theme?: DockviewTheme;
     disableTabsOverflowList?: boolean;
+    /**
+     * Select `native` to use built-in scrollbar behaviours and `custom` to use an internal implementation
+     * that allows for improved scrollbar overlay UX.
+     *
+     * This is only applied to the tab header section. Defaults to `custom`.
+     */
+    scrollbars?: 'native' | 'custom';
 }
 
 export interface DockviewDndOverlayEvent extends IAcceptableEvent {
@@ -116,6 +123,7 @@ export const PROPERTY_KEYS_DOCKVIEW: (keyof DockviewOptions)[] = (() => {
         dndEdges: undefined,
         theme: undefined,
         disableTabsOverflowList: undefined,
+        scrollbars: undefined,
     };
 
     return Object.keys(properties) as (keyof DockviewOptions)[];

packages/dockview-core/src/dom.ts

@@ -2,7 +2,6 @@ import {
     Event as DockviewEvent,
     Emitter,
     addDisposableListener,
-    addDisposableWindowListener,
 } from './events';
 import { IDisposable, CompositeDisposable } from './lifecycle';
 
@@ -112,8 +111,11 @@ export function isAncestor(
     return false;
 }
 
-export function getElementsByTagName(tag: string): HTMLElement[] {
-    return Array.prototype.slice.call(document.getElementsByTagName(tag), 0);
+export function getElementsByTagName(
+    tag: string,
+    document: ParentNode
+): HTMLElement[] {
+    return Array.prototype.slice.call(document.querySelectorAll(tag), 0);
 }
 
 export interface IFocusTracker extends IDisposable {
@@ -122,7 +124,7 @@ export interface IFocusTracker extends IDisposable {
     refreshState?(): void;
 }
 
-export function trackFocus(element: HTMLElement | Window): IFocusTracker {
+export function trackFocus(element: HTMLElement): IFocusTracker {
     return new FocusTracker(element);
 }
 
@@ -138,7 +140,7 @@ class FocusTracker extends CompositeDisposable implements IFocusTracker {
 
     private readonly _refreshStateHandler: () => void;
 
-    constructor(element: HTMLElement | Window) {
+    constructor(element: HTMLElement) {
         super();
 
         this.addDisposables(this._onDidFocus, this._onDidBlur);
@@ -181,21 +183,12 @@ class FocusTracker extends CompositeDisposable implements IFocusTracker {
             }
         };
 
-        if (element instanceof HTMLElement) {
         this.addDisposables(
             addDisposableListener(element, 'focus', onFocus, true)
         );
         this.addDisposables(
             addDisposableListener(element, 'blur', onBlur, true)
         );
-        } else {
-            this.addDisposables(
-                addDisposableWindowListener(element, 'focus', onFocus, true)
-            );
-            this.addDisposables(
-                addDisposableWindowListener(element, 'blur', onBlur, true)
-            );
-        }
     }
 
     refreshState(): void {
@@ -288,11 +281,36 @@ export function addTestId(element: HTMLElement, id: string): void {
     element.setAttribute('data-testid', id);
 }
 
-export function disableIframePointEvents() {
-    const iframes: HTMLElement[] = [
-        ...getElementsByTagName('iframe'),
-        ...getElementsByTagName('webview'),
-    ];
+/**
+ * Should be more efficient than element.querySelectorAll("*") since there
+ * is no need to store every element in-memory using this approach
+ */
+function allTagsNamesInclusiveOfShadowDoms(tagNames: string[]) {
+    const iframes: HTMLElement[] = [];
+
+    function findIframesInNode(node: Element) {
+        if (node.nodeType === Node.ELEMENT_NODE) {
+            if (tagNames.includes(node.tagName)) {
+                iframes.push(node as HTMLElement);
+            }
+
+            if (node.shadowRoot) {
+                findIframesInNode(<any>node.shadowRoot);
+            }
+
+            for (const child of node.children) {
+                findIframesInNode(child);
+            }
+        }
+    }
+
+    findIframesInNode(document.documentElement);
+
+    return iframes;
+}
+
+export function disableIframePointEvents(rootNode: ParentNode = document) {
+    const iframes = allTagsNamesInclusiveOfShadowDoms(['IFRAME', 'WEBVIEW']);
 
     const original = new WeakMap<HTMLElement, string>(); // don't hold onto HTMLElement references longer than required
 
@@ -358,6 +376,8 @@ export class Classnames {
     }
 }
 
+const DEBOUCE_DELAY = 100;
+
 export function isChildEntirelyVisibleWithinParent(
     child: HTMLElement,
     parent: HTMLElement
@@ -379,3 +399,102 @@ export function isChildEntirelyVisibleWithinParent(
 
     return true;
 }
+
+export function onDidWindowMoveEnd(window: Window): Emitter<void> {
+    const emitter = new Emitter<void>();
+
+    let previousScreenX = window.screenX;
+    let previousScreenY = window.screenY;
+
+    let timeout: any;
+
+    const checkMovement = () => {
+        if (window.closed) {
+            return;
+        }
+
+        const currentScreenX = window.screenX;
+        const currentScreenY = window.screenY;
+
+        if (
+            currentScreenX !== previousScreenX ||
+            currentScreenY !== previousScreenY
+        ) {
+            clearTimeout(timeout);
+            timeout = setTimeout(() => {
+                emitter.fire();
+            }, DEBOUCE_DELAY);
+
+            previousScreenX = currentScreenX;
+            previousScreenY = currentScreenY;
+        }
+
+        requestAnimationFrame(checkMovement);
+    };
+
+    checkMovement();
+
+    return emitter;
+}
+
+export function onDidWindowResizeEnd(element: Window, cb: () => void) {
+    let resizeTimeout: any;
+
+    const disposable = new CompositeDisposable(
+        addDisposableListener(element, 'resize', () => {
+            clearTimeout(resizeTimeout);
+            resizeTimeout = setTimeout(() => {
+                cb();
+            }, DEBOUCE_DELAY);
+        })
+    );
+
+    return disposable;
+}
+
+export function shiftAbsoluteElementIntoView(
+    element: HTMLElement,
+    root: HTMLElement,
+    options: { buffer: number } = { buffer: 10 }
+) {
+    const buffer = options.buffer;
+    const rect = element.getBoundingClientRect();
+    const rootRect = root.getBoundingClientRect();
+
+    let translateX = 0;
+    let translateY = 0;
+
+    const left = rect.left - rootRect.left;
+    const top = rect.top - rootRect.top;
+    const bottom = rect.bottom - rootRect.bottom;
+    const right = rect.right - rootRect.right;
+
+    // Check horizontal overflow
+    if (left < buffer) {
+        translateX = buffer - left;
+    } else if (right > buffer) {
+        translateX = -buffer - right;
+    }
+
+    // Check vertical overflow
+    if (top < buffer) {
+        translateY = buffer - top;
+    } else if (bottom > buffer) {
+        translateY = -bottom - buffer;
+    }
+
+    // Apply the translation if needed
+    if (translateX !== 0 || translateY !== 0) {
+        element.style.transform = `translate(${translateX}px, ${translateY}px)`;
+    }
+}
+
+export function findRelativeZIndexParent(el: HTMLElement): HTMLElement | null {
+    let tmp: HTMLElement | null = el;
+
+    while (tmp && (tmp.style.zIndex === 'auto' || tmp.style.zIndex === '')) {
+        tmp = tmp.parentElement;
+    }
+
+    return tmp;
+}

packages/dockview-core/src/events.ts

@@ -193,32 +193,38 @@ export class Emitter<T> implements IDisposable {
     }
 }
 
-export function addDisposableWindowListener<K extends keyof WindowEventMap>(
+export function addDisposableListener<K extends keyof WindowEventMap>(
     element: Window,
     type: K,
     listener: (this: Window, ev: WindowEventMap[K]) => any,
     options?: boolean | AddEventListenerOptions
-): IDisposable {
-    element.addEventListener(type, listener, options);
-
-    return {
-        dispose: () => {
-            element.removeEventListener(type, listener, options);
-        },
-    };
-}
-
+): IDisposable;
 export function addDisposableListener<K extends keyof HTMLElementEventMap>(
     element: HTMLElement,
     type: K,
     listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any,
     options?: boolean | AddEventListenerOptions
+): IDisposable;
+export function addDisposableListener<
+    K extends keyof HTMLElementEventMap | keyof WindowEventMap
+>(
+    element: HTMLElement | Window,
+    type: K,
+    listener: (
+        this: K extends keyof HTMLElementEventMap ? HTMLElement : Window,
+        ev: K extends keyof HTMLElementEventMap
+            ? HTMLElementEventMap[K]
+            : K extends keyof WindowEventMap
+            ? WindowEventMap[K]
+            : never
+    ) => any,
+    options?: boolean | AddEventListenerOptions
 ): IDisposable {
-    element.addEventListener(type, listener, options);
+    element.addEventListener(type, <any>listener, options);
 
     return {
         dispose: () => {
-            element.removeEventListener(type, listener, options);
+            element.removeEventListener(type, <any>listener, options);
         },
     };
 }

packages/dockview-core/src/overlay/overlay.ts

@@ -7,7 +7,6 @@ import {
     Emitter,
     Event,
     addDisposableListener,
-    addDisposableWindowListener,
 } from '../events';
 import { CompositeDisposable, MutableDisposable } from '../lifecycle';
 import { clamp } from '../math';
@@ -258,7 +257,7 @@ export class Overlay extends CompositeDisposable {
                         iframes.release();
                     },
                 },
-                addDisposableWindowListener(window, 'pointermove', (e) => {
+                addDisposableListener(window, 'pointermove', (e) => {
                     const containerRect =
                         this.options.container.getBoundingClientRect();
                     const x = e.clientX - containerRect.left;
@@ -344,7 +343,7 @@ export class Overlay extends CompositeDisposable {
 
                     this.setBounds(bounds);
                 }),
-                addDisposableWindowListener(window, 'pointerup', () => {
+                addDisposableListener(window, 'pointerup', () => {
                     toggleClass(
                         this._element,
                         'dv-resize-container-dragging',
@@ -439,7 +438,7 @@ export class Overlay extends CompositeDisposable {
                 const iframes = disableIframePointEvents();
 
                 move.value = new CompositeDisposable(
-                    addDisposableWindowListener(window, 'pointermove', (e) => {
+                  addDisposableListener(window, 'pointermove', (e) => {
                         const containerRect =
                             this.options.container.getBoundingClientRect();
                         const overlayRect =
@@ -610,7 +609,7 @@ export class Overlay extends CompositeDisposable {
                             iframes.release();
                         },
                     },
-                    addDisposableWindowListener(window, 'pointerup', () => {
+                    addDisposableListener(window, 'pointerup', () => {
                         move.dispose();
                         this._onDidChangeEnd.fire();
                     })

packages/dockview-core/src/paneview/draggablePaneviewPanel.ts

@@ -38,20 +38,37 @@ export abstract class DraggablePaneviewPanel extends PaneviewPanel {
     readonly onUnhandledDragOverEvent: Event<PaneviewDndOverlayEvent> =
         this._onUnhandledDragOverEvent.event;
 
-    constructor(
-        private readonly accessor: IPaneviewComponent,
-        id: string,
-        component: string,
-        headerComponent: string | undefined,
-        orientation: Orientation,
-        isExpanded: boolean,
-        disableDnd: boolean
-    ) {
-        super(id, component, headerComponent, orientation, isExpanded, true);
+    readonly accessor: IPaneviewComponent;
+
+    constructor(options: {
+        accessor: IPaneviewComponent;
+        id: string;
+        component: string;
+        headerComponent: string | undefined;
+        orientation: Orientation;
+        isExpanded: boolean;
+        disableDnd: boolean;
+        headerSize: number;
+        minimumBodySize: number;
+        maximumBodySize: number;
+    }) {
+        super({
+            id: options.id,
+            component: options.component,
+            headerComponent: options.headerComponent,
+            orientation: options.orientation,
+            isExpanded: options.isExpanded,
+            isHeaderVisible: true,
+            headerSize: options.headerSize,
+            minimumBodySize: options.minimumBodySize,
+            maximumBodySize: options.maximumBodySize,
+        });
+
+        this.accessor = options.accessor;
 
         this.addDisposables(this._onDidDrop, this._onUnhandledDragOverEvent);
 
-        if (!disableDnd) {
+        if (!options.disableDnd) {
             this.initDragFeatures();
         }
     }

packages/dockview-core/src/paneview/paneviewComponent.ts

@@ -21,11 +21,16 @@ import { Classnames } from '../dom';
 
 const nextLayoutId = sequentialNumberGenerator();
 
+const HEADER_SIZE = 22;
+const MINIMUM_BODY_SIZE = 0;
+const MAXIMUM_BODY_SIZE = Number.MAX_SAFE_INTEGER;
+
 export interface SerializedPaneviewPanel {
     snap?: boolean;
     priority?: LayoutPriority;
     minimumSize?: number;
     maximumSize?: number;
+    headerSize?: number;
     data: {
         id: string;
         component: string;
@@ -54,17 +59,23 @@ export class PaneFramework extends DraggablePaneviewPanel {
             isExpanded: boolean;
             disableDnd: boolean;
             accessor: IPaneviewComponent;
+            headerSize: number;
+            minimumBodySize: number;
+            maximumBodySize: number;
         }
     ) {
-        super(
-            options.accessor,
-            options.id,
-            options.component,
-            options.headerComponent,
-            options.orientation,
-            options.isExpanded,
-            options.disableDnd
-        );
+        super({
+            accessor: options.accessor,
+            id: options.id,
+            component: options.component,
+            headerComponent: options.headerComponent,
+            orientation: options.orientation,
+            isExpanded: options.isExpanded,
+            disableDnd: options.disableDnd,
+            headerSize: options.headerSize,
+            minimumBodySize: options.minimumBodySize,
+            maximumBodySize: options.maximumBodySize,
+        });
     }
 
     getBodyComponent() {
@@ -83,6 +94,7 @@ export interface AddPaneviewComponentOptions<T extends object = Parameters> {
     params?: T;
     minimumBodySize?: number;
     maximumBodySize?: number;
+    headerSize?: number;
     isExpanded?: boolean;
     title: string;
     index?: number;
@@ -277,6 +289,9 @@ export class PaneviewComponent extends Resizable implements IPaneviewComponent {
             isExpanded: !!options.isExpanded,
             disableDnd: !!this.options.disableDnd,
             accessor: this,
+            headerSize: options.headerSize ?? HEADER_SIZE,
+            minimumBodySize: MINIMUM_BODY_SIZE,
+            maximumBodySize: MAXIMUM_BODY_SIZE,
         });
 
         this.doAddPanel(view);
@@ -344,6 +359,7 @@ export class PaneviewComponent extends Resizable implements IPaneviewComponent {
                     data: view.toJSON(),
                     minimumSize: minimum(view.minimumBodySize),
                     maximumSize: maximum(view.maximumBodySize),
+                    headerSize: view.headerSize,
                     expanded: view.isExpanded(),
                 };
             });
@@ -403,6 +419,9 @@ export class PaneviewComponent extends Resizable implements IPaneviewComponent {
                         isExpanded: !!view.expanded,
                         disableDnd: !!this.options.disableDnd,
                         accessor: this,
+                        headerSize: view.headerSize ?? HEADER_SIZE,
+                        minimumBodySize: view.minimumSize ?? MINIMUM_BODY_SIZE,
+                        maximumBodySize: view.maximumSize ?? MAXIMUM_BODY_SIZE,
                     });
 
                     this.doAddPanel(panel);

packages/dockview-core/src/paneview/paneviewPanel.ts

@@ -71,22 +71,23 @@ export abstract class PaneviewPanel
     readonly onDidChange: Event<{ size?: number; orthogonalSize?: number }> =
         this._onDidChange.event;
 
-    private readonly headerSize = 22;
     private _orthogonalSize = 0;
     private _size = 0;
-    private _minimumBodySize = 100;
-    private _maximumBodySize: number = Number.POSITIVE_INFINITY;
+    private _minimumBodySize: number;
+    private _maximumBodySize: number;
     private _isExpanded = false;
     protected header?: HTMLElement;
     protected body?: HTMLElement;
     private bodyPart?: IPanePart;
     private headerPart?: IPanePart;
-    private expandedSize = 0;
     private animationTimer: any;
     private _orientation: Orientation;
 
     private _headerVisible: boolean;
 
+    readonly headerSize: number;
+    readonly headerComponent: string | undefined;
+
     set orientation(value: Orientation) {
         this._orientation = value;
     }
@@ -149,24 +150,37 @@ export abstract class PaneviewPanel
         this.header!.style.display = value ? '' : 'none';
     }
 
-    constructor(
-        id: string,
-        component: string,
-        private readonly headerComponent: string | undefined,
-        orientation: Orientation,
-        isExpanded: boolean,
-        isHeaderVisible: boolean
-    ) {
-        super(id, component, new PaneviewPanelApiImpl(id, component));
+    constructor(options: {
+        id: string;
+        component: string;
+        headerComponent: string | undefined;
+        orientation: Orientation;
+        isExpanded: boolean;
+        isHeaderVisible: boolean;
+        headerSize: number;
+        minimumBodySize: number;
+        maximumBodySize: number;
+    }) {
+        super(
+            options.id,
+            options.component,
+            new PaneviewPanelApiImpl(options.id, options.component)
+        );
         this.api.pane = this; // TODO cannot use 'this' before 'super'
         this.api.initialize(this);
 
-        this._isExpanded = isExpanded;
-        this._headerVisible = isHeaderVisible;
+        this.headerSize = options.headerSize;
+        this.headerComponent = options.headerComponent;
+
+        this._minimumBodySize = options.minimumBodySize;
+        this._maximumBodySize = options.maximumBodySize;
+
+        this._isExpanded = options.isExpanded;
+        this._headerVisible = options.isHeaderVisible;
 
         this._onDidChangeExpansionState.fire(this.isExpanded()); // initialize value
 
-        this._orientation = orientation;
+        this._orientation = options.orientation;
 
         this.element.classList.add('dv-pane');
 
@@ -260,9 +274,6 @@ export abstract class PaneviewPanel
             this.orientation === Orientation.HORIZONTAL
                 ? [size, orthogonalSize]
                 : [orthogonalSize, size];
-        if (this.isExpanded()) {
-            this.expandedSize = width;
-        }
         super.layout(width, height);
     }
 

packages/dockview-core/src/popoutWindow.ts

@@ -1,5 +1,5 @@
 import { addStyles } from './dom';
-import { Emitter, addDisposableWindowListener } from './events';
+import { Emitter, addDisposableListener } from './events';
 import { CompositeDisposable, Disposable, IDisposable } from './lifecycle';
 import { Box } from './types';
 
@@ -101,7 +101,7 @@ export class PopoutWindow extends CompositeDisposable {
             Disposable.from(() => {
                 externalWindow.close();
             }),
-            addDisposableWindowListener(window, 'beforeunload', () => {
+            addDisposableListener(window, 'beforeunload', () => {
                 /**
                  * before the main window closes we should close this popup too
                  * to be good citizens
@@ -146,7 +146,7 @@ export class PopoutWindow extends CompositeDisposable {
                      * beforeunload must be registered after load for reasons I could not determine
                      * otherwise the beforeunload event will not fire when the window is closed
                      */
-                    addDisposableWindowListener(
+                    addDisposableListener(
                         externalWindow,
                         'beforeunload',
                         () => {

packages/dockview-core/src/splitview/splitviewComponent.ts

@@ -122,6 +122,10 @@ export class SplitviewComponent
     }
 
     set splitview(value: Splitview) {
+        if (this._splitview) {
+            this._splitview.dispose();
+        }
+
         this._splitview = value;
 
         this._splitviewChangeDisposable.value = new CompositeDisposable(

packages/dockview-core/src/theme.scss

@@ -216,8 +216,7 @@
     .dv-groupview {
         &.dv-active-group {
             > .dv-tabs-and-actions-container {
-                > .dv-scrollable {
-                    > .dv-tabs-container {
+                .dv-tabs-container {
                     > .dv-tab.dv-active-tab {
                         position: relative;
 
@@ -235,11 +234,9 @@
                 }
             }
         }
-        }
         &.dv-inactive-group {
             > .dv-tabs-and-actions-container {
-                > .dv-scrollable {
-                    > .dv-tabs-container {
+                .dv-tabs-container {
                     > .dv-tab.dv-active-tab {
                         position: relative;
 
@@ -259,7 +256,6 @@
         }
     }
 }
-}
 
 .dockview-theme-abyss {
     @include dockview-theme-abyss-mixin();

packages/dockview-react/package.json

@@ -1,6 +1,6 @@
 {
   "name": "dockview-react",
-  "version": "4.0.0",
+  "version": "4.2.5",
   "description": "Zero dependency layout manager supporting tabs, grids and splitviews",
   "keywords": [
     "splitview",
@@ -54,6 +54,6 @@
     "test:cov": "cross-env ../../node_modules/.bin/jest --selectProjects dockview-react --coverage"
   },
   "dependencies": {
-    "dockview": "^4.0.0"
+    "dockview": "^4.2.5"
   }
 }

packages/dockview-vue/package.json

@@ -1,6 +1,6 @@
 {
   "name": "dockview-vue",
-  "version": "4.0.0",
+  "version": "4.2.5",
   "description": "Zero dependency layout manager supporting tabs, grids and splitviews",
   "keywords": [
     "splitview",
@@ -52,7 +52,7 @@
     "test:cov": "cross-env ../../node_modules/.bin/jest --selectProjects dockview-vue --coverage"
   },
   "dependencies": {
-    "dockview-core": "^4.0.0"
+    "dockview-core": "^4.2.5"
   },
   "peerDependencies": {
     "vue": "^3.4.0"

packages/dockview/package.json

@@ -1,6 +1,6 @@
 {
   "name": "dockview",
-  "version": "4.0.0",
+  "version": "4.2.5",
   "description": "Zero dependency layout manager supporting tabs, grids and splitviews",
   "keywords": [
     "splitview",
@@ -54,7 +54,7 @@
     "test:cov": "cross-env ../../node_modules/.bin/jest --selectProjects dockview --coverage"
   },
   "dependencies": {
-    "dockview-core": "^4.0.0"
+    "dockview-core": "^4.2.5"
   },
   "peerDependencies": {
     "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0"

packages/dockview/src/dockview/dockview.tsx

@@ -175,6 +175,7 @@ export const DockviewReact = React.forwardRef(
             dockviewRef.current = api;
 
             return () => {
+                dockviewRef.current = undefined;
                 api.dispose();
             };
         }, []);

packages/dockview/src/gridview/gridview.tsx

@@ -105,6 +105,7 @@ export const GridviewReact = React.forwardRef(
             gridviewRef.current = api;
 
             return () => {
+                gridviewRef.current = undefined;
                 api.dispose();
             };
         }, []);

packages/dockview/src/paneview/paneview.tsx

@@ -120,6 +120,7 @@ export const PaneviewReact = React.forwardRef(
             paneviewRef.current = api;
 
             return () => {
+                paneviewRef.current = undefined;
                 api.dispose();
             };
         }, []);

packages/dockview/src/splitview/splitview.tsx

@@ -105,6 +105,7 @@ export const SplitviewReact = React.forwardRef(
             splitviewRef.current = api;
 
             return () => {
+                splitviewRef.current = undefined;
                 api.dispose();
             };
         }, []);

packages/docs/blog/2025-03-14-dockview-4.0.1.md

@@ -0,0 +1,19 @@
+---
+slug: dockview-4.0.1-release
+title: Dockview 4.0.1
+tags: [release]
+---
+
+# Release Notes
+
+Please reference docs @ [dockview.dev](https://dockview.dev).
+
+## 🚀 Features
+
+## 🛠 Miscs
+
+- Bug: Fix full-width tab CSS [#880](https://github.com/mathuo/dockview/pull/880)
+- Bug: Fix tab divider CSS [#879](https://github.com/mathuo/dockview/pull/879)
+
+## 🔥 Breaking changes
+

packages/docs/blog/2025-03-16-dockview-4.1.0.md

@@ -0,0 +1,23 @@
+---
+slug: dockview-4.1.0-release
+title: Dockview 4.1.0
+tags: [release]
+---
+
+# Release Notes
+
+Please reference docs @ [dockview.dev](https://dockview.dev).
+
+## 🚀 Features
+
+- Custom header size for Paneview components [#875](https://github.com/mathuo/dockview/pull/875)
+- Add events `onDidPopoutGroupSizeChange` and `onDidPopoutGroupPositionChange` [#876](https://github.com/mathuo/dockview/pull/876)
+
+## 🛠 Miscs
+
+- Bug: Prevent ghost DOM elements after `fromJSON` calls on Splitview components [#881](https://github.com/mathuo/dockview/pull/881)
+- Bug: Disable point-events for iframes within shadow DOMs during tab dnd events [#791](https://github.com/mathuo/dockview/pull/791)
+- Bug: Custom group id when no reference panel nor group is provided [#882](https://github.com/mathuo/dockview/pull/882)
+
+## 🔥 Breaking changes
+

packages/docs/blog/2025-03-17-dockview-4.2.0.md

@@ -0,0 +1,20 @@
+---
+slug: dockview-4.2.0-release
+title: Dockview 4.2.0
+tags: [release]
+---
+
+# Release Notes
+
+Please reference docs @ [dockview.dev](https://dockview.dev).
+
+## 🚀 Features
+
+- `scrollbars` options [#885](https://github.com/mathuo/dockview/pull/885)
+
+## 🛠 Miscs
+
+- Bug: Fix group dnd [#885](https://github.com/mathuo/dockview/pull/885)
+
+## 🔥 Breaking changes
+

packages/docs/blog/2025-03-18-dockview-4.2.1.md

@@ -0,0 +1,20 @@
+---
+slug: dockview-4.2.1-release
+title: Dockview 4.2.1
+tags: [release]
+---
+
+# Release Notes
+
+Please reference docs @ [dockview.dev](https://dockview.dev).
+
+## 🚀 Features
+
+
+## 🛠 Miscs
+
+- Bug: Fix styles and dnd issues [#887](https://github.com/mathuo/dockview/pull/887)
+- Bug: Fix options init issues [#888](https://github.com/mathuo/dockview/pull/888)
+
+## 🔥 Breaking changes
+

packages/docs/blog/2025-03-26-dockview-4.2.2.md

@@ -0,0 +1,19 @@
+---
+slug: dockview-4.2.2-release
+title: Dockview 4.2.2
+tags: [release]
+---
+
+# Release Notes
+
+Please reference docs @ [dockview.dev](https://dockview.dev).
+
+## 🚀 Features
+
+
+## 🛠 Miscs
+
+- Bug: React disposable issues [#892](https://github.com/mathuo/dockview/pull/892)
+
+## 🔥 Breaking changes
+

packages/docs/blog/2025-04-08-dockview-4.2.3.md

@@ -0,0 +1,19 @@
+---
+slug: dockview-4.2.3-release
+title: Dockview 4.2.3
+tags: [release]
+---
+
+# Release Notes
+
+Please reference docs @ [dockview.dev](https://dockview.dev).
+
+## 🚀 Features
+
+
+## 🛠 Miscs
+
+- Bug: React disposable issues [#892](https://github.com/mathuo/dockview/pull/892)
+
+## 🔥 Breaking changes
+

packages/docs/blog/2025-04-29-dockview-4.2.4.md

@@ -0,0 +1,21 @@
+---
+slug: dockview-4.2.4-release
+title: Dockview 4.2.4
+tags: [release]
+---
+
+# Release Notes
+
+Please reference docs @ [dockview.dev](https://dockview.dev).
+
+## 🚀 Features
+
+
+## 🛠 Miscs
+
+- Bug: Ghost groups appearing when in popout mode [#917](https://github.com/mathuo/dockview/pull/917)
+- Bug: Tab overflow dropdown rendering fixes [#916](https://github.com/mathuo/dockview/pull/916) 
+- Update docs [#828](https://github.com/mathuo/dockview/pull/828) [#827](https://github.com/mathuo/dockview/pull/827)
+
+## 🔥 Breaking changes
+

packages/docs/blog/2025-05-01-dockview-4.2.5.md

@@ -0,0 +1,20 @@
+---
+slug: dockview-4.2.5-release
+title: Dockview 4.2.5
+tags: [release]
+---
+
+# Release Notes
+
+Please reference docs @ [dockview.dev](https://dockview.dev).
+
+## 🚀 Features
+
+
+## 🛠 Miscs
+
+- Bug: Tab overflow dropdown positions on boundaries of viewport [#921](https://github.com/mathuo/dockview/pull/921)
+- Bug: Dnd Ghost image rendering interactivity issues [#920](https://github.com/mathuo/dockview/pull/920)
+
+## 🔥 Breaking changes
+

packages/docs/package.json

@@ -1,6 +1,6 @@
 {
   "name": "dockview-docs",
-  "version": "4.0.0",
+  "version": "4.2.5",
   "private": true,
   "scripts": {
     "build": "npm run build-templates && docusaurus build",
@@ -38,7 +38,7 @@
     "ag-grid-react": "^31.0.2",
     "axios": "^1.6.3",
     "clsx": "^2.1.0",
-    "dockview": "^4.0.0",
+    "dockview": "^4.2.5",
     "prism-react-renderer": "^2.3.1",
     "react-dnd": "^16.0.1",
     "react-laag": "^2.0.5",

packages/docs/sandboxes/react/dockview/demo-dockview/src/app.tsx

@@ -8,6 +8,7 @@ import {
     DockviewTheme,
 } from 'dockview';
 import * as React from 'react';
+import * as ReactDOM from 'react-dom/client';
 import './app.scss';
 import { defaultConfig } from './defaultLayout';
 import { GridActions } from './gridActions';
@@ -31,6 +32,20 @@ const Option = (props: {
     );
 };
 
+const ShadowIframe = (props: IDockviewPanelProps) => {
+    return (
+        <iframe
+            onMouseDown={() => {
+                if (!props.api.isActive) {
+                    props.api.setActive();
+                }
+            }}
+            style={{ border: 'none', width: '100%', height: '100%' }}
+            src="https://dockview.dev"
+        />
+    );
+};
+
 const components = {
     default: (props: IDockviewPanelProps) => {
         const isDebug = React.useContext(DebugContext);
@@ -110,6 +125,7 @@ const components = {
                     }
                 }}
                 style={{
+                    border: 'none',
                     width: '100%',
                     height: '100%',
                 }}
@@ -117,6 +133,33 @@ const components = {
             />
         );
     },
+    shadowDom: (props: IDockviewPanelProps) => {
+        const ref = React.useRef<HTMLDivElement>(null);
+
+        React.useEffect(() => {
+            if (!ref.current) {
+                return;
+            }
+
+            const shadow = ref.current.attachShadow({
+                mode: 'open',
+            });
+
+            const shadowRoot = document.createElement('div');
+            shadowRoot.style.height = '100%';
+            shadow.appendChild(shadowRoot);
+
+            const root = ReactDOM.createRoot(shadowRoot);
+
+            root.render(<ShadowIframe {...props} />);
+
+            return () => {
+                root.unmount();
+            };
+        }, []);
+
+        return <div style={{ height: '100%' }} ref={ref}></div>;
+    },
 };
 
 const headerComponents = {

packages/docs/src/components/HomepageFeatures/introduction.tsx

@@ -22,9 +22,6 @@ export const Introduction = () => {
                 <img src={useBaseUrl('/img/dockview_logo.svg')} height={30} />
                 <span style={{ paddingLeft: '8px' }}>Dockview Live Demos</span>
             </div>
-            <div style={{ padding: '20px' }}>
-                <BrowserHeader />
-            </div>
             <div style={{ padding: '20px' }}>
                 <BrowserHeader />
                 <MultiFrameworkContainer

packages/docs/src/generated/api.output.json

@@ -2387,6 +2387,50 @@
                     }
                 }
             },
+            {
+                "name": "onDidPopoutGroupPositionChange",
+                "code": "Event<PopoutGroupChangePositionEvent>",
+                "kind": "accessor",
+                "value": {
+                    "name": "onDidPopoutGroupPositionChange",
+                    "code": "Event<PopoutGroupChangePositionEvent>",
+                    "kind": "getSignature",
+                    "returnType": {
+                        "type": "reference",
+                        "value": "Event",
+                        "source": "dockview-core",
+                        "typeArguments": [
+                            {
+                                "type": "reference",
+                                "value": "PopoutGroupChangePositionEvent",
+                                "source": "dockview-core"
+                            }
+                        ]
+                    }
+                }
+            },
+            {
+                "name": "onDidPopoutGroupSizeChange",
+                "code": "Event<PopoutGroupChangeSizeEvent>",
+                "kind": "accessor",
+                "value": {
+                    "name": "onDidPopoutGroupSizeChange",
+                    "code": "Event<PopoutGroupChangeSizeEvent>",
+                    "kind": "getSignature",
+                    "returnType": {
+                        "type": "reference",
+                        "value": "Event",
+                        "source": "dockview-core",
+                        "typeArguments": [
+                            {
+                                "type": "reference",
+                                "value": "PopoutGroupChangeSizeEvent",
+                                "source": "dockview-core"
+                            }
+                        ]
+                    }
+                }
+            },
             {
                 "name": "onDidRemoveGroup",
                 "code": "Event<DockviewGroupPanel>",
@@ -4399,6 +4443,46 @@
                     "isReadonly": true
                 }
             },
+            {
+                "name": "onDidPopoutGroupPositionChange",
+                "code": "Event<PopoutGroupChangePositionEvent>",
+                "kind": "property",
+                "type": {
+                    "type": "reference",
+                    "value": "Event",
+                    "source": "dockview-core",
+                    "typeArguments": [
+                        {
+                            "type": "reference",
+                            "value": "PopoutGroupChangePositionEvent",
+                            "source": "dockview-core"
+                        }
+                    ]
+                },
+                "flags": {
+                    "isReadonly": true
+                }
+            },
+            {
+                "name": "onDidPopoutGroupSizeChange",
+                "code": "Event<PopoutGroupChangeSizeEvent>",
+                "kind": "property",
+                "type": {
+                    "type": "reference",
+                    "value": "Event",
+                    "source": "dockview-core",
+                    "typeArguments": [
+                        {
+                            "type": "reference",
+                            "value": "PopoutGroupChangeSizeEvent",
+                            "source": "dockview-core"
+                        }
+                    ]
+                },
+                "flags": {
+                    "isReadonly": true
+                }
+            },
             {
                 "name": "onDidRemove",
                 "code": "Event<DockviewGroupPanel>",
@@ -9761,6 +9845,19 @@
                     "isOptional": true
                 }
             },
+            {
+                "name": "accessor",
+                "code": "IPaneviewComponent",
+                "kind": "property",
+                "type": {
+                    "type": "reference",
+                    "value": "IPaneviewComponent",
+                    "source": "dockview-core"
+                },
+                "flags": {
+                    "isReadonly": true
+                }
+            },
             {
                 "name": "api",
                 "code": "PaneviewPanelApiImpl",
@@ -9816,6 +9913,39 @@
                     "isOptional": true
                 }
             },
+            {
+                "name": "headerComponent",
+                "code": "string | undefined",
+                "kind": "property",
+                "type": {
+                    "type": "or",
+                    "values": [
+                        {
+                            "type": "intrinsic",
+                            "value": "string"
+                        },
+                        {
+                            "type": "intrinsic",
+                            "value": "undefined"
+                        }
+                    ]
+                },
+                "flags": {
+                    "isReadonly": true
+                }
+            },
+            {
+                "name": "headerSize",
+                "code": "number",
+                "kind": "property",
+                "type": {
+                    "type": "intrinsic",
+                    "value": "number"
+                },
+                "flags": {
+                    "isReadonly": true
+                }
+            },
             {
                 "name": "id",
                 "code": "string",
@@ -14987,6 +15117,19 @@
                     "isOptional": true
                 }
             },
+            {
+                "name": "accessor",
+                "code": "IPaneviewComponent",
+                "kind": "property",
+                "type": {
+                    "type": "reference",
+                    "value": "IPaneviewComponent",
+                    "source": "dockview-core"
+                },
+                "flags": {
+                    "isReadonly": true
+                }
+            },
             {
                 "name": "api",
                 "code": "PaneviewPanelApiImpl",
@@ -15042,6 +15185,39 @@
                     "isOptional": true
                 }
             },
+            {
+                "name": "headerComponent",
+                "code": "string | undefined",
+                "kind": "property",
+                "type": {
+                    "type": "or",
+                    "values": [
+                        {
+                            "type": "intrinsic",
+                            "value": "string"
+                        },
+                        {
+                            "type": "intrinsic",
+                            "value": "undefined"
+                        }
+                    ]
+                },
+                "flags": {
+                    "isReadonly": true
+                }
+            },
+            {
+                "name": "headerSize",
+                "code": "number",
+                "kind": "property",
+                "type": {
+                    "type": "intrinsic",
+                    "value": "number"
+                },
+                "flags": {
+                    "isReadonly": true
+                }
+            },
             {
                 "name": "id",
                 "code": "string",
@@ -18020,6 +18196,39 @@
                     "isOptional": true
                 }
             },
+            {
+                "name": "headerComponent",
+                "code": "string | undefined",
+                "kind": "property",
+                "type": {
+                    "type": "or",
+                    "values": [
+                        {
+                            "type": "intrinsic",
+                            "value": "string"
+                        },
+                        {
+                            "type": "intrinsic",
+                            "value": "undefined"
+                        }
+                    ]
+                },
+                "flags": {
+                    "isReadonly": true
+                }
+            },
+            {
+                "name": "headerSize",
+                "code": "number",
+                "kind": "property",
+                "type": {
+                    "type": "intrinsic",
+                    "value": "number"
+                },
+                "flags": {
+                    "isReadonly": true
+                }
+            },
             {
                 "name": "id",
                 "code": "string",
@@ -22515,6 +22724,18 @@
                     "isOptional": true
                 }
             },
+            {
+                "name": "headerSize",
+                "code": "number",
+                "kind": "property",
+                "type": {
+                    "type": "intrinsic",
+                    "value": "number"
+                },
+                "flags": {
+                    "isOptional": true
+                }
+            },
             {
                 "name": "id",
                 "code": "string",
@@ -25811,7 +26032,7 @@
                         },
                         {
                             "kind": "text",
-                            "text": "\nwill mount the overlay to root of the dockview component whereas "
+                            "text": "\r\nwill mount the overlay to root of the dockview component whereas "
                         },
                         {
                             "kind": "code",
@@ -29259,6 +29480,46 @@
                     "isReadonly": true
                 }
             },
+            {
+                "name": "onDidPopoutGroupPositionChange",
+                "code": "Event<PopoutGroupChangePositionEvent>",
+                "kind": "property",
+                "type": {
+                    "type": "reference",
+                    "value": "Event",
+                    "source": "dockview-core",
+                    "typeArguments": [
+                        {
+                            "type": "reference",
+                            "value": "PopoutGroupChangePositionEvent",
+                            "source": "dockview-core"
+                        }
+                    ]
+                },
+                "flags": {
+                    "isReadonly": true
+                }
+            },
+            {
+                "name": "onDidPopoutGroupSizeChange",
+                "code": "Event<PopoutGroupChangeSizeEvent>",
+                "kind": "property",
+                "type": {
+                    "type": "reference",
+                    "value": "Event",
+                    "source": "dockview-core",
+                    "typeArguments": [
+                        {
+                            "type": "reference",
+                            "value": "PopoutGroupChangeSizeEvent",
+                            "source": "dockview-core"
+                        }
+                    ]
+                },
+                "flags": {
+                    "isReadonly": true
+                }
+            },
             {
                 "name": "onDidRemoveGroup",
                 "code": "Event<DockviewGroupPanel>",
@@ -39967,6 +40228,82 @@
         "code": "",
         "kind": "interface"
     },
+    "PopoutGroupChangePositionEvent": {
+        "kind": "interface",
+        "name": "PopoutGroupChangePositionEvent",
+        "children": [
+            {
+                "name": "group",
+                "code": "DockviewGroupPanel",
+                "kind": "property",
+                "type": {
+                    "type": "reference",
+                    "value": "DockviewGroupPanel",
+                    "source": "dockview-core"
+                },
+                "flags": {}
+            },
+            {
+                "name": "screenX",
+                "code": "number",
+                "kind": "property",
+                "type": {
+                    "type": "intrinsic",
+                    "value": "number"
+                },
+                "flags": {}
+            },
+            {
+                "name": "screenY",
+                "code": "number",
+                "kind": "property",
+                "type": {
+                    "type": "intrinsic",
+                    "value": "number"
+                },
+                "flags": {}
+            }
+        ],
+        "extends": []
+    },
+    "PopoutGroupChangeSizeEvent": {
+        "kind": "interface",
+        "name": "PopoutGroupChangeSizeEvent",
+        "children": [
+            {
+                "name": "group",
+                "code": "DockviewGroupPanel",
+                "kind": "property",
+                "type": {
+                    "type": "reference",
+                    "value": "DockviewGroupPanel",
+                    "source": "dockview-core"
+                },
+                "flags": {}
+            },
+            {
+                "name": "height",
+                "code": "number",
+                "kind": "property",
+                "type": {
+                    "type": "intrinsic",
+                    "value": "number"
+                },
+                "flags": {}
+            },
+            {
+                "name": "width",
+                "code": "number",
+                "kind": "property",
+                "type": {
+                    "type": "intrinsic",
+                    "value": "number"
+                },
+                "flags": {}
+            }
+        ],
+        "extends": []
+    },
     "RendererChangedEvent": {
         "kind": "interface",
         "name": "RendererChangedEvent",
@@ -40485,6 +40822,18 @@
                     "isOptional": true
                 }
             },
+            {
+                "name": "headerSize",
+                "code": "number",
+                "kind": "property",
+                "type": {
+                    "type": "intrinsic",
+                    "value": "number"
+                },
+                "flags": {
+                    "isOptional": true
+                }
+            },
             {
                 "name": "maximumSize",
                 "code": "number",