Method getKeyAreaHeights

components/DropDownMenu/DropDownModal.js:108–129

(manualOptionHeight)

  }

  getKeyAreaHeights(manualOptionHeight) {
    const { optionHeight } = this.state;
    const { style } = this.props;

    const gradientHeight = manualOptionHeight || optionHeight;
    const listViewHeight = this.calculateListViewHeight(gradientHeight);
    const screenHeight = window.height;
    const paddedScreenHeight = style.modal.paddingVertical
      ? screenHeight - style.modal.paddingVertical * 2
      : screenHeight;
    const bufferHeight = Math.max(
      (paddedScreenHeight - listViewHeight) / 2,
      gradientHeight * 2,
    );

    return {
      listViewHeight,
      screenHeight,
      gradientHeight,
      bufferHeight,
    };
  }

  renderGradient() {
    const { style } = this.props;