From 21e1c5ef584737a5a27d517fbd41a5f1f2df270a Mon Sep 17 00:00:00 2001
From: meganrogge <merogge@microsoft.com>
Date: Tue, 22 Mar 2022 01:53:10 -0400
Subject: [PATCH] refresh canvas dimensions on refresh

---
 src/browser/Decorations/OverviewRulerRenderer.ts | 6 +++---
 src/browser/Terminal.ts                          | 8 ++++++--
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/src/browser/Decorations/OverviewRulerRenderer.ts b/src/browser/Decorations/OverviewRulerRenderer.ts
index 9cdf99ca..8c63f5e3 100644
--- a/src/browser/Decorations/OverviewRulerRenderer.ts
+++ b/src/browser/Decorations/OverviewRulerRenderer.ts
@@ -49,7 +49,7 @@ export class OverviewRulerRenderer extends Disposable {
     super();
     this._canvas = document.createElement('canvas');
     this._canvas.classList.add('xterm-decoration-overview-ruler');
-    this._refreshCanvasDimensions();
+    this.refreshCanvasDimensions();
     this._viewportElement.parentElement?.insertBefore(this._canvas, this._viewportElement);
     const ctx = this._canvas.getContext('2d');
     if (!ctx) {
@@ -129,7 +129,7 @@ export class OverviewRulerRenderer extends Disposable {
     );
   }
 
-  private _refreshCanvasDimensions(): void {
+  public refreshCanvasDimensions(): void {
     this._canvas.style.width = `${this._width}px`;
     this._canvas.style.height = `${this._screenElement.clientHeight}px`;
     this._canvas.width = Math.round(this._width * window.devicePixelRatio);
@@ -139,7 +139,7 @@ export class OverviewRulerRenderer extends Disposable {
 
   private _refreshDecorations(updateCanvasDimensions?: boolean, updateAnchor?: boolean): void {
     if (updateCanvasDimensions) {
-      this._refreshCanvasDimensions();
+      this.refreshCanvasDimensions();
     }
     this._ctx.clearRect(0, 0, this._canvas.width, this._canvas.height);
     for (const decoration of this._decorationService.decorations) {
diff --git a/src/browser/Terminal.ts b/src/browser/Terminal.ts
index 8cb116ae..6560a976 100644
--- a/src/browser/Terminal.ts
+++ b/src/browser/Terminal.ts
@@ -175,7 +175,9 @@ export class Terminal extends CoreTerminal implements ITerminal {
 
     // Setup InputHandler listeners
     this.register(this._inputHandler.onRequestBell(() => this.bell()));
-    this.register(this._inputHandler.onRequestRefreshRows((start, end) => this.refresh(start, end)));
+    this.register(this._inputHandler.onRequestRefreshRows((start, end) => {
+      this.refresh(start, end);
+    }));
     this.register(this._inputHandler.onRequestSendFocus(() => this._reportFocus()));
     this.register(this._inputHandler.onRequestReset(() => this.reset()));
     this.register(this._inputHandler.onRequestWindowsOptionsReport(type => this._reportWindowsOptions(type)));
@@ -613,7 +615,8 @@ export class Terminal extends CoreTerminal implements ITerminal {
     this.optionsService.onOptionChange(() => {
       if (!this._overviewRulerRenderer && this.options.overviewRulerWidth && this._viewportElement && this.screenElement) {
         this._overviewRulerRenderer = this._instantiationService.createInstance(OverviewRulerRenderer, this._viewportElement, this.screenElement);
-      }});
+      }
+    });
     // Measure the character size
     this._charSizeService.measure();
 
@@ -906,6 +909,7 @@ export class Terminal extends CoreTerminal implements ITerminal {
    */
   public refresh(start: number, end: number): void {
     this._renderService?.refreshRows(start, end);
+    this._overviewRulerRenderer?.refreshCanvasDimensions();
   }
 
   /**