tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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util.js (711B)

      1 // Returns true if element's center is within the visual viewport bounds.
      2 function isInViewport(element) {
      3  const viewportRect = {
      4    left: visualViewport.offsetLeft,
      5    top: visualViewport.offsetTop,
      6    right: visualViewport.offsetLeft + visualViewport.width,
      7    bottom: visualViewport.offsetTop + visualViewport.height
      8  };
      9 
     10  const elementRect = element.getBoundingClientRect();
     11  const elementCenter = {
     12    x: elementRect.left + elementRect.width / 2,
     13    y: elementRect.top + elementRect.height / 2
     14  };
     15 
     16  return elementCenter.x > viewportRect.left &&
     17         elementCenter.x < viewportRect.right &&
     18         elementCenter.y > viewportRect.top &&
     19         elementCenter.y < viewportRect.bottom;
     20 }