Always paint when `layoutContentWidget` is called

src/vs/editor/browser/view/viewImpl.ts

@@ -721,12 +721,11 @@ export class View extends ViewEventHandler implements editorBrowser.IView, IDisp
 			throw new Error('ViewImpl.layoutContentWidget: View is disposed');
 		}
 
-		let newPosition = widgetData.position ? widgetData.position.position : null;
-		let newPreference = widgetData.position ? widgetData.position.preference : null;
-		let shouldRender = this.contentWidgets.setWidgetPosition(widgetData.widget, newPosition, newPreference);
-		if (shouldRender) {
-			this._scheduleRender();
-		}
+		this._renderOnce(() => {
+			let newPosition = widgetData.position ? widgetData.position.position : null;
+			let newPreference = widgetData.position ? widgetData.position.preference : null;
+			this.contentWidgets.setWidgetPosition(widgetData.widget, newPosition, newPreference);
+		});
 	}
 
 	public removeContentWidget(widgetData: editorBrowser.IContentWidgetData): void {

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

@@ -9,7 +9,6 @@ import 'vs/css!./contentWidgets';
 import * as dom from 'vs/base/browser/dom';
 import {StyleMutator} from 'vs/base/browser/styleMutator';
 import * as editorCommon from 'vs/editor/common/editorCommon';
-import {Position} from 'vs/editor/common/core/position';
 import {ClassNames, ContentWidgetPositionPreference, IContentWidget, IRenderingContext, IViewContext} from 'vs/editor/browser/editorBrowser';
 import {ViewPart} from 'vs/editor/browser/view/viewPart';
 
@@ -160,40 +159,13 @@ export class ViewContentWidgets extends ViewPart {
 		this.shouldRender = true;
 	}
 
-	private static _contentWidgetPositionPreferenceEqual(a:ContentWidgetPositionPreference[], b:ContentWidgetPositionPreference[]): boolean {
-		if (!a && !b) {
-			return true;
-		}
-		if (!a || !b) {
-			return false;
-		}
-		if (a.length !== b.length) {
-			return false;
-		}
-		for (let i = 0, len = a.length; i < len; i++) {
-			if (a[i] !== b[i]) {
-				return false;
-			}
-		}
-		return true;
-	}
-
-	public setWidgetPosition(widget: IContentWidget, position: editorCommon.IPosition, preference:ContentWidgetPositionPreference[]): boolean {
+	public setWidgetPosition(widget: IContentWidget, position: editorCommon.IPosition, preference:ContentWidgetPositionPreference[]): void {
 		let widgetData = this._widgets[widget.getId()];
-		let somethingChanged = false;
-
-		if (!Position.equals(widgetData.position, position)) {
-			widgetData.position = position;
-			somethingChanged = true;
-		}
 
-		if (!ViewContentWidgets._contentWidgetPositionPreferenceEqual(widgetData.preference, preference)) {
-			widgetData.preference = preference;
-			somethingChanged = true;
-		}
+		widgetData.position = position;
+		widgetData.preference = preference;
 
-		this.shouldRender = somethingChanged;
-		return somethingChanged;
+		this.shouldRender = true;
 	}
 
 	public removeWidget(widget: IContentWidget): void {