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cables_dev/cables/src/core/cgl/cgl_utils.js

  1. /** @namespace CGL */
  2.  
  3. /**
  4.  * multiply to get radians from degree, e.g. `360 * CGL.DEG2RAD`
  5.  * @const {Number}
  6.  * @memberof CGL
  7.  * @static
  8.  */
  9. export const DEG2RAD = Math.PI / 180.0;
  10.  
  11. /**
  12.  * to get degrees from radians, e.g. `3.14 * CGL.RAD2DEG`
  13.  * @const {number}
  14.  * @memberof CGL
  15.  */
  16. export const RAD2DEG = 180.0 / Math.PI;
  17.  
  18. export const onLoadingAssetsFinished = null; // deprecated / remove later
  19.  
  20. /**
  21.  * get normalized mouse wheel delta (including browser specific adjustment)
  22.  * @function getWheelDelta
  23.  * @static
  24.  * @memberof CGL
  25.  * @param {MouseEvent} event
  26.  * @return {Number} normalized delta
  27.  */
  28. export const isWindows = window.navigator.userAgent.contains("Windows");
  29. const getWheelDelta_ = function (event)
  30. {
  31.     let normalized;
  32.     if (event.wheelDelta)
  33.     {
  34.         // chrome
  35.         normalized = (event.wheelDelta % 120) - 0 == -0 ? event.wheelDelta / 120 : event.wheelDelta / 30;
  36.         normalized *= -1.5;
  37.         if (isWindows) normalized *= 2;
  38.     }
  39.     else
  40.     {
  41.         // firefox
  42.         let d = event.deltaY;
  43.         if (event.shiftKey) d = event.deltaX;
  44.         const rawAmmount = d || event.detail;
  45.         normalized = -(rawAmmount % 3 ? rawAmmount * 10 : rawAmmount / 3);
  46.         normalized *= -3;
  47.     }
  48.  
  49.     if (normalized > 20) normalized = 20;
  50.     if (normalized < -20) normalized = -20;
  51.  
  52.     return normalized;
  53. };
  54.  
  55. export const getWheelSpeed = getWheelDelta_;
  56. export const getWheelDelta = getWheelDelta_;
  57.  
  58. // from https://github.com/lodash/lodash/blob/master/escape.js
  59.  
  60. const htmlEscapes = {
  61.     "&": "&amp;",
  62.     "<": "&lt;",
  63.     ">": "&gt;",
  64.     "\"": "&quot;",
  65.     "'": "&#39;",
  66. };
  67.  
  68. /** Used to match HTML entities and HTML characters. */
  69. const reUnescapedHtml = /[&<>"']/g;
  70. const reHasUnescapedHtml = RegExp(reUnescapedHtml.source);
  71.  
  72. /*  eslint-disable */
  73. export const escapeHTML = function(string)
  74. {
  75.     return string && reHasUnescapedHtml.test(string) ?
  76.         string.replace(reUnescapedHtml, function(chr) { return htmlEscapes[chr]; })
  77.         : string || "";
  78. }
  79. /* eslint-enable */