Function resizeTo

lib/big.js:309–323

* This is the 'meat': it resizes a slide to a certain size. In * talk mode, that size is the side of an aspect-fit box inside of * the display. In jump and print modes, that size is a certain fixed * pixel size. * * @param {HTMLElement} slideContainer * @param {number} width * @

(slideContainer, width, height)

   * @param {number} height
   */
  function resizeTo(slideContainer, width, height) {
    var slideDiv = slideContainer.firstChild;
    var fontSize = height;
    slideContainer.style.width = width + "px";
    slideContainer.style.height = height + "px";
    [100, 50, 10, 2].forEach(function(step) {
      for (; fontSize > 0; fontSize -= step) {
        slideDiv.style.fontSize = fontSize + "px";
        if (slideDiv.offsetWidth <= width && slideDiv.offsetHeight <= height) {
          break;
        }
      }
      fontSize += step;
    });
  }

  function emptyNode(node) {
    while (node.hasChildNodes()) {