feat: remove global focus tracking

packages/dockview/src/dnd/abstractDragHandler.ts

@@ -1,6 +1,5 @@
 import { getElementsByTagName } from '../dom';
 import { addDisposableListener, Emitter } from '../events';
-import { focusedElement } from '../focusedElement';
 import { CompositeDisposable, IDisposable } from '../lifecycle';
 
 export abstract class DragHandler extends CompositeDisposable {

packages/dockview/src/focusedElement.ts

@@ -1,11 +0,0 @@
-export const focusedElement: { element: Element | null } = { element: null };
-
-window.addEventListener(
-    'focusin',
-    () => {
-        focusedElement.element = document.activeElement;
-    },
-    true
-);
-
-focusedElement.element = document.activeElement;

packages/dockview/src/groupview/groupview.ts

@@ -17,7 +17,6 @@ import { ContentContainer, IContentContainer } from './panel/content';
 import { ITabsContainer, TabsContainer } from './titlebar/tabsContainer';
 import { IWatermarkRenderer } from './types';
 import { GroupviewPanel } from './groupviewPanel';
-import { focusedElement } from '../focusedElement';
 import { DockviewDropTargets } from './dnd';
 
 export enum GroupChangeKind {
@@ -268,11 +267,11 @@ export class Groupview extends CompositeDisposable implements IGroupview {
     }
 
     isContentFocused() {
-        if (!focusedElement.element) {
+        if (!document.activeElement) {
             return false;
         }
         return isAncestor(
-            focusedElement.element,
+            document.activeElement,
             this.contentContainer.element
         );
     }

packages/dockview/src/groupview/tab.ts

@@ -4,7 +4,6 @@ import { getPanelData, LocalSelectionTransfer } from '../dnd/dataTransfer';
 import { getElementsByTagName, toggleClass } from '../dom';
 import { IDockviewComponent } from '../dockview/dockviewComponent';
 import { ITabRenderer } from './types';
-import { focusedElement } from '../focusedElement';
 import { IGroupPanel } from './groupPanel';
 import { GroupviewPanel } from './groupviewPanel';
 import { DroptargetEvent, Droptarget } from '../dnd/droptarget';