Method setVisibleArea

packages/react-devtools-timeline/src/view-base/View.js:125–134

(newVisibleArea: Rect)

  }

  setVisibleArea(newVisibleArea: Rect) {
    if (!rectEqualToRect(this.visibleArea, newVisibleArea)) {
      if (sizeIsValid(newVisibleArea.size)) {
        this.visibleArea = newVisibleArea;
      } else {
        this.visibleArea = zeroRect;
      }
      this.setNeedsDisplay();
    }
  }

  /**
   * A size that can be used as a hint by layout functions.