1 files changed, 15 insertions, 2 deletions
diff --git a/node_modules/xterm/src/browser/public/Terminal.ts b/node_modules/xterm/src/browser/public/Terminal.ts
index 117805f..1acde93 100644
--- a/node_modules/xterm/src/browser/public/Terminal.ts
+++ b/node_modules/xterm/src/browser/public/Terminal.ts
@@ -3,7 +3,7 @@
  * @license MIT
  */
 
-import { Terminal as ITerminalApi, IMarker, IDisposable, ILinkMatcherOptions, ITheme, ILocalizableStrings, ITerminalAddon, ISelectionPosition, IBufferNamespace as IBufferNamespaceApi, IParser, ILinkProvider, IUnicodeHandling, FontWeight, IModes } from 'xterm';
+import { Terminal as ITerminalApi, IMarker, IDisposable, ILinkMatcherOptions, ITheme, ILocalizableStrings, ITerminalAddon, ISelectionPosition, IBufferNamespace as IBufferNamespaceApi, IParser, ILinkProvider, IUnicodeHandling, FontWeight, IModes, IDecorationOptions, IDecoration } from 'xterm';
 import { ITerminal } from 'browser/Types';
 import { Terminal as TerminalCore } from 'browser/Terminal';
 import * as Strings from 'browser/LocalizableStrings';
@@ -166,11 +166,16 @@ export class Terminal implements ITerminalApi {
     this._checkProposedApi();
     this._core.deregisterCharacterJoiner(joinerId);
   }
-  public registerMarker(cursorYOffset: number): IMarker | undefined {
+  public registerMarker(cursorYOffset: number = 0): IMarker | undefined {
     this._checkProposedApi();
     this._verifyIntegers(cursorYOffset);
     return this._core.addMarker(cursorYOffset);
   }
+  public registerDecoration(decorationOptions: IDecorationOptions): IDecoration | undefined {
+    this._checkProposedApi();
+    this._verifyPositiveIntegers(decorationOptions.x ?? 0, decorationOptions.width ?? 0, decorationOptions.height ?? 0);
+    return this._core.registerDecoration(decorationOptions);
+  }
   public addMarker(cursorYOffset: number): IMarker | undefined {
     return this.registerMarker(cursorYOffset);
   }
@@ -281,4 +286,12 @@ export class Terminal implements ITerminalApi {
       }
     }
   }
+
+  private _verifyPositiveIntegers(...values: number[]): void {
+    for (const value of values) {
+      if (value && (value === Infinity || isNaN(value) || value % 1 !== 0 || value < 0)) {
+        throw new Error('This API only accepts positive integers');
+      }
+    }
+  }
 }