fix: prevent error when width = 0

atom-minimap · Nov 21, 2020 · 1ec8f12 · 1ec8f12
1 parent cfeba59
commit 1ec8f12
Showing 1 changed file with 7 additions and 5 deletions.
diff --git a/lib/canvas-layer.js b/lib/canvas-layer.js
@@ -73,11 +73,13 @@ module.exports = class CanvasLayer {
   }
 
   copyPartFromOffscreen (srcY, destY, height) {
-    this.context.drawImage(
-      this.offscreenCanvas,
-      0, srcY, this.offscreenCanvas.width, height,
-      0, destY, this.offscreenCanvas.width, height
-    )
+    if (this.offscreenCanvas.width > 0 && this.offscreenCanvas.height > 0) {
+      this.context.drawImage(
+        this.offscreenCanvas,
+        0, srcY, this.offscreenCanvas.width, height,
+        0, destY, this.offscreenCanvas.width, height
+      )
+    }
   }
 
   clearCanvas () {