Fixes #21007: Minimap in output panel does not immediately respond to theme change

src/vs/editor/browser/viewParts/minimap/minimap.ts

@@ -372,7 +372,6 @@ export class Minimap extends ViewPart {
 	private readonly _canvas: FastDomNode<HTMLCanvasElement>;
 	private readonly _slider: FastDomNode<HTMLElement>;
 	private readonly _tokensColorTracker: MinimapTokensColorTracker;
-	private readonly _tokensColorTrackerListener: IDisposable;
 	private readonly _mouseDownListener: IDisposable;
 
 	private readonly _minimapCharRenderer: MinimapCharRenderer;
@@ -405,7 +404,6 @@ export class Minimap extends ViewPart {
 		this._domNode.domNode.appendChild(this._slider.domNode);
 
 		this._tokensColorTracker = MinimapTokensColorTracker.getInstance();
-		this._tokensColorTrackerListener = this._tokensColorTracker.onDidChange(() => this._buffers = null);
 
 		this._minimapCharRenderer = getOrCreateMinimapCharRenderer();
 
@@ -438,7 +436,6 @@ export class Minimap extends ViewPart {
 	}
 
 	public dispose(): void {
-		this._tokensColorTrackerListener.dispose();
 		this._mouseDownListener.dispose();
 		super.dispose();
 	}
@@ -455,7 +452,6 @@ export class Minimap extends ViewPart {
 		this._canvas.domNode.width = this._options.canvasInnerWidth;
 		this._canvas.domNode.height = this._options.canvasInnerHeight;
 		this._slider.setWidth(this._options.minimapWidth);
-		this._buffers = null;
 	}
 
 	private _getBuffer(): ImageData {
@@ -477,6 +473,7 @@ export class Minimap extends ViewPart {
 		}
 		this._options = opts;
 		this._lastRenderData = null;
+		this._buffers = null;
 		this._applyLayout();
 		return true;
 	}
@@ -517,6 +514,11 @@ export class Minimap extends ViewPart {
 		}
 		return false;
 	}
+	public onTokensColorsChanged(e: viewEvents.ViewTokensColorsChangedEvent): boolean {
+		this._lastRenderData = null;
+		this._buffers = null;
+		return true;
+	}
 	public onZonesChanged(e: viewEvents.ViewZonesChangedEvent): boolean {
 		this._lastRenderData = null;
 		return true;

src/vs/editor/common/view/viewEvents.ts

@@ -25,7 +25,8 @@ export const enum ViewEventType {
 	ViewScrollChanged = 12,
 	ViewScrollRequest = 13,
 	ViewTokensChanged = 14,
-	ViewZonesChanged = 15,
+	ViewTokensColorsChanged = 15,
+	ViewZonesChanged = 16,
 }
 
 export class ViewConfigurationChangedEvent {
@@ -270,6 +271,15 @@ export class ViewTokensChangedEvent {
 	}
 }
 
+export class ViewTokensColorsChangedEvent {
+
+	public readonly type = ViewEventType.ViewTokensColorsChanged;
+
+	constructor() {
+		// Nothing to do
+	}
+}
+
 export class ViewZonesChangedEvent {
 
 	public readonly type = ViewEventType.ViewZonesChanged;
@@ -294,5 +304,6 @@ export type ViewEvent = (
 	| ViewScrollChangedEvent
 	| ViewScrollRequestEvent
 	| ViewTokensChangedEvent
+	| ViewTokensColorsChangedEvent
 	| ViewZonesChangedEvent
 );

src/vs/editor/common/viewModel/viewEventHandler.ts

@@ -74,6 +74,9 @@ export class ViewEventHandler {
 	public onTokensChanged(e: viewEvents.ViewTokensChangedEvent): boolean {
 		return false;
 	}
+	public onTokensColorsChanged(e: viewEvents.ViewTokensColorsChangedEvent): boolean {
+		return false;
+	}
 	public onZonesChanged(e: viewEvents.ViewZonesChangedEvent): boolean {
 		return false;
 	}
@@ -173,6 +176,12 @@ export class ViewEventHandler {
 					}
 					break;
 
+				case viewEvents.ViewEventType.ViewTokensColorsChanged:
+					if (this.onTokensColorsChanged(e)) {
+						shouldRender = true;
+					}
+					break;
+
 				case viewEvents.ViewEventType.ViewZonesChanged:
 					if (this.onZonesChanged(e)) {
 						shouldRender = true;

src/vs/editor/common/viewModel/viewModelImpl.ts

@@ -19,6 +19,7 @@ import { MinimapLinesRenderingData, ViewLineRenderingData, ViewModelDecoration,
 import { SplitLinesCollection } from 'vs/editor/common/viewModel/splitLinesCollection';
 import * as viewEvents from 'vs/editor/common/view/viewEvents';
 import * as errors from 'vs/base/common/errors';
+import { MinimapTokensColorTracker } from 'vs/editor/common/view/minimapCharRenderer';
 
 export class CoordinatesConverter implements ICoordinatesConverter {
 
@@ -128,6 +129,9 @@ export class ViewModel implements IViewModel {
 		this._toDispose.push(this.configuration.onDidChange((e) => {
 			this.onEvents([new EmitterEvent(editorCommon.EventType.ConfigurationChanged, e)]);
 		}));
+		this._toDispose.push(MinimapTokensColorTracker.getInstance().onDidChange(() => {
+			this._emit([new viewEvents.ViewTokensColorsChangedEvent()]);
+		}));
 
 		this._listeners = [];
 	}