src/vs/editor/contrib/wordHighlighter/wordHighlighter.ts/WordHighlighter/_onPositionChanged
class WordHighlighter:	private _onPositionChanged(e: ICursorPositionChangedEvent): void {

		// disabled
		if (!this.occurrencesHighlight) {
			this._stopAll();
			return;
		}

		// ignore typing & other
		if (e.reason !== CursorChangeReason.Explicit) {
			this._stopAll();
			return;
		}

		this._run();
	}