Function componentDidMount

source/Collection/CollectionView.js:218–250

()

  }

  componentDidMount() {
    const {cellLayoutManager, scrollLeft, scrollToCell, scrollTop} = this.props;

    // If this component was first rendered server-side, scrollbar size will be undefined.
    // In that event we need to remeasure.
    if (!this._scrollbarSizeMeasured) {
      this._scrollbarSize = getScrollbarSize();
      this._scrollbarSizeMeasured = true;
      this.setState({});
    }

    if (scrollToCell >= 0) {
      this._updateScrollPositionForScrollToCell();
    } else if (scrollLeft >= 0 || scrollTop >= 0) {
      this._setScrollPosition({scrollLeft, scrollTop});
    }

    // Update onSectionRendered callback.
    this._invokeOnSectionRenderedHelper();

    const {
      height: totalHeight,
      width: totalWidth,
    } = cellLayoutManager.getTotalSize();

    // Initialize onScroll callback.
    this._invokeOnScrollMemoizer({
      scrollLeft: scrollLeft || 0,
      scrollTop: scrollTop || 0,
      totalHeight,
      totalWidth,
    });
  }

  componentDidUpdate(prevProps, prevState) {
    const {height, scrollToAlignment, scrollToCell, width} = this.props;