Merge pull request #3372 from Puneethnaik/issue_3319_fix

Scrollbar still visible after clearing screen and scrollback buffer with escape sequence #3319

Author: Tyriar

src/common/CoreTerminal.ts

@@ -125,6 +125,10 @@ export abstract class CoreTerminal extends Disposable implements ICoreTerminal {
       this._onScroll.fire({ position: this._bufferService.buffer.ydisp, source: ScrollSource.TERMINAL });
       this._dirtyRowService.markRangeDirty(this._bufferService.buffer.scrollTop, this._bufferService.buffer.scrollBottom);
     }));
+    this.register(this._inputHandler.onScroll(event => {
+      this._onScroll.fire({ position: this._bufferService.buffer.ydisp, source: ScrollSource.TERMINAL });
+      this._dirtyRowService.markRangeDirty(this._bufferService.buffer.scrollTop, this._bufferService.buffer.scrollBottom);
+    }));
 
     // Setup WriteBuffer
     this._writeBuffer = new WriteBuffer((data, promiseResult) => this._inputHandler.parse(data, promiseResult));