mirror of
https://github.com/microsoft/vscode.git
synced 2026-05-17 13:50:46 +01:00
AshtonYoon
611bf74afd
Two regressions from the merge of #287050: 1. preview.ts: The merge retained `this.#isScrolling = false` inside the early-return guard of `scrollTo()`, which was intentionally removed in the original PR. This resets the timer-based flag on the very first forward-sync call, allowing subsequent editor scroll events to re-trigger forward sync while reverse sync is in progress, causing the editor to jump back up. 2. index.ts: The PR converted `onUpdateView` from a decrement-counter to a timer-based approach but left initialization and resize handlers still using `scrollDisabledCount += 1` without a corresponding timer reset. The old scroll handler decremented the counter naturally; the new handler only returns early. As a result, after page load `scrollDisabledCount` stays at 1 indefinitely, blocking all preview-to-editor sync until the user scrolls the editor once. Fixes: - Remove the erroneous `this.#isScrolling = false` from scrollTo() - Apply the same timer-reset pattern (200ms) to initialization and resize handlers so scrollDisabledCount is always auto-cleared Fixes #307762