perfectkb-yate/src/utils.js

Yet Another Turtle Editor, forked from YASQE

"use strict";
var $ = require("jquery");

var keyExists = function(objectToTest, key) {
  var exists = false;
  try {
    if (objectToTest[key] !== undefined) exists = true;
  } catch (e) {}
  return exists;
};

var getPersistencyId = function(yate, persistentIdCreator) {
  var persistencyId = null;

  if (persistentIdCreator) {
    if (typeof persistentIdCreator == "string") {
      persistencyId = persistentIdCreator;
    } else {
      persistencyId = persistentIdCreator(yate);
    }
  }
  return persistencyId;
};

var elementsOverlap = (function() {
  function getPositions(elem) {
    var pos, width, height;
    pos = $(elem).offset();
    width = $(elem).width();
    height = $(elem).height();
    return [[pos.left, pos.left + width], [pos.top, pos.top + height]];
  }

  function comparePositions(p1, p2) {
    var r1, r2;
    r1 = p1[0] < p2[0] ? p1 : p2;
    r2 = p1[0] < p2[0] ? p2 : p1;
    return r1[1] > r2[0] || r1[0] === r2[0];
  }

  return function(a, b) {
    var pos1 = getPositions(a), pos2 = getPositions(b);
    return comparePositions(pos1[0], pos2[0]) && comparePositions(pos1[1], pos2[1]);
  };
})();

var getString = function(yate, item) {
  if (typeof item == "function") {
    return item(yate);
  } else {
    return item;
  }
};
module.exports = {
  keyExists: keyExists,
  getPersistencyId: getPersistencyId,
  elementsOverlap: elementsOverlap,
  getString: getString
};