When inlay hints appear/disappear rerender the sticky scroll

src/vs/editor/common/model/textModel.ts

@@ -2332,11 +2332,12 @@ export class DidChangeDecorationsEmitter extends Disposable {
 		this._deferredCnt--;
 		if (this._deferredCnt === 0) {
 			if (this._shouldFire) {
+				const affectedTextLines = new Set(this._affectedInjectedTextLines);
 				this.handleBeforeFire(this._affectedInjectedTextLines);
-
 				const event: IModelDecorationsChangedEvent = {
 					affectsMinimap: this._affectsMinimap,
-					affectsOverviewRuler: this._affectsOverviewRuler
+					affectsOverviewRuler: this._affectsOverviewRuler,
+					linesAffected: affectedTextLines,
 				};
 				this._shouldFire = false;
 				this._affectsMinimap = false;

src/vs/editor/common/textModelEvents.ts

@@ -80,6 +80,7 @@ export interface IModelContentChangedEvent {
 export interface IModelDecorationsChangedEvent {
 	readonly affectsMinimap: boolean;
 	readonly affectsOverviewRuler: boolean;
+	readonly linesAffected?: Set<number> | null;
 }
 
 /**

src/vs/editor/contrib/stickyScroll/browser/stickyScrollController.ts

@@ -65,6 +65,22 @@ export class StickyScrollController extends Disposable implements IEditorContrib
 			if (lineNumberOption.renderType === RenderLineNumbersType.Relative) {
 				this._sessionStore.add(this._editor.onDidChangeCursorPosition(() => this.renderStickyScroll()));
 			}
+			const inlayHintsOptions = this._editor.getOption(EditorOption.inlayHints);
+			if (inlayHintsOptions.enabled === 'offUnlessPressed' || inlayHintsOptions.enabled === 'onUnlessPressed') {
+				this._editor.onDidChangeModelDecorations((e) => {
+					const firstLine = this._widgetState.lineNumbers[0];
+					const lastLine = this._widgetState.lineNumbers[this._widgetState.lineNumbers.length - 1];
+					if (!e.linesAffected || !firstLine || !lastLine) {
+						return;
+					}
+					for (const line of e.linesAffected) {
+						if (line >= firstLine && line <= lastLine) {
+							this.renderStickyScroll();
+							return;
+						}
+					}
+				});
+			}
 		}
 	}
 

src/vs/editor/contrib/stickyScroll/browser/stickyScrollProvider.ts

@@ -59,8 +59,8 @@ export class StickyLineCandidateProvider extends Disposable {
 	}
 
 	private readConfiguration() {
-		const options = this._editor.getOption(EditorOption.stickyScroll);
-		if (options.enabled === false) {
+		const stickyScrollOptions = this._editor.getOption(EditorOption.stickyScroll);
+		if (stickyScrollOptions.enabled === false) {
 			this._sessionStore.clear();
 			return;
 		} else {

src/vs/monaco.d.ts

@@ -2695,6 +2695,7 @@ declare namespace monaco.editor {
 	export interface IModelDecorationsChangedEvent {
 		readonly affectsMinimap: boolean;
 		readonly affectsOverviewRuler: boolean;
+		readonly linesAffected?: Set<number> | null;
 	}
 
 	export interface IModelOptionsChangedEvent {