Function getPositionedStyle

src/helpers/helpers.dom.ts:53–63

(styles: CSSStyleDeclaration, style: string, suffix?: string)

const positions = ['top', 'right', 'bottom', 'left'];
function getPositionedStyle(styles: CSSStyleDeclaration, style: string, suffix?: string): ChartArea {
  const result = {} as ChartArea;
  suffix = suffix ? '-' + suffix : '';
  for (let i = 0; i < 4; i++) {
    const pos = positions[i];
    result[pos] = parseFloat(styles[style + '-' + pos + suffix]) || 0;
  }
  result.width = result.left + result.right;
  result.height = result.top + result.bottom;
  return result;
}

const useOffsetPos = (x: number, y: number, target: HTMLElement | EventTarget) =>
  (x > 0 || y > 0) && (!target || !(target as HTMLElement).shadowRoot);