swiper/esm/utils/utils.js

Most modern mobile touch slider and framework with hardware accelerated transitions

import { getWindow } from 'ssr-window';

function deleteProps(obj) {
  var object = obj;
  Object.keys(object).forEach(function (key) {
    try {
      object[key] = null;
    } catch (e) {// no getter for object
    }

    try {
      delete object[key];
    } catch (e) {// something got wrong
    }
  });
}

function nextTick(callback, delay) {
  if (delay === void 0) {
    delay = 0;
  }

  return setTimeout(callback, delay);
}

function now() {
  return Date.now();
}

function getComputedStyle(el) {
  var window = getWindow();
  var style;

  if (window.getComputedStyle) {
    style = window.getComputedStyle(el, null);
  }

  if (!style && el.currentStyle) {
    style = el.currentStyle;
  }

  if (!style) {
    style = el.style;
  }

  return style;
}

function getTranslate(el, axis) {
  if (axis === void 0) {
    axis = 'x';
  }

  var window = getWindow();
  var matrix;
  var curTransform;
  var transformMatrix;
  var curStyle = getComputedStyle(el, null);

  if (window.WebKitCSSMatrix) {
    curTransform = curStyle.transform || curStyle.webkitTransform;

    if (curTransform.split(',').length > 6) {
      curTransform = curTransform.split(', ').map(function (a) {
        return a.replace(',', '.');
      }).join(', ');
    } // Some old versions of Webkit choke when 'none' is passed; pass
    // empty string instead in this case


    transformMatrix = new window.WebKitCSSMatrix(curTransform === 'none' ? '' : curTransform);
  } else {
    transformMatrix = curStyle.MozTransform || curStyle.OTransform || curStyle.MsTransform || curStyle.msTransform || curStyle.transform || curStyle.getPropertyValue('transform').replace('translate(', 'matrix(1, 0, 0, 1,');
    matrix = transformMatrix.toString().split(',');
  }

  if (axis === 'x') {
    // Latest Chrome and webkits Fix
    if (window.WebKitCSSMatrix) curTransform = transformMatrix.m41; // Crazy IE10 Matrix
    else if (matrix.length === 16) curTransform = parseFloat(matrix[12]); // Normal Browsers
      else curTransform = parseFloat(matrix[4]);
  }

  if (axis === 'y') {
    // Latest Chrome and webkits Fix
    if (window.WebKitCSSMatrix) curTransform = transformMatrix.m42; // Crazy IE10 Matrix
    else if (matrix.length === 16) curTransform = parseFloat(matrix[13]); // Normal Browsers
      else curTransform = parseFloat(matrix[5]);
  }

  return curTransform || 0;
}

function isObject(o) {
  return typeof o === 'object' && o !== null && o.constructor && Object.prototype.toString.call(o).slice(8, -1) === 'Object';
}

function extend() {
  var to = Object(arguments.length <= 0 ? undefined : arguments[0]);
  var noExtend = ['__proto__', 'constructor', 'prototype'];

  for (var i = 1; i < arguments.length; i += 1) {
    var nextSource = i < 0 || arguments.length <= i ? undefined : arguments[i];

    if (nextSource !== undefined && nextSource !== null) {
      var keysArray = Object.keys(Object(nextSource)).filter(function (key) {
        return noExtend.indexOf(key) < 0;
      });

      for (var nextIndex = 0, len = keysArray.length; nextIndex < len; nextIndex += 1) {
        var nextKey = keysArray[nextIndex];
        var desc = Object.getOwnPropertyDescriptor(nextSource, nextKey);

        if (desc !== undefined && desc.enumerable) {
          if (isObject(to[nextKey]) && isObject(nextSource[nextKey])) {
            if (nextSource[nextKey].__swiper__) {
              to[nextKey] = nextSource[nextKey];
            } else {
              extend(to[nextKey], nextSource[nextKey]);
            }
          } else if (!isObject(to[nextKey]) && isObject(nextSource[nextKey])) {
            to[nextKey] = {};

            if (nextSource[nextKey].__swiper__) {
              to[nextKey] = nextSource[nextKey];
            } else {
              extend(to[nextKey], nextSource[nextKey]);
            }
          } else {
            to[nextKey] = nextSource[nextKey];
          }
        }
      }
    }
  }

  return to;
}

function bindModuleMethods(instance, obj) {
  Object.keys(obj).forEach(function (key) {
    if (isObject(obj[key])) {
      Object.keys(obj[key]).forEach(function (subKey) {
        if (typeof obj[key][subKey] === 'function') {
          obj[key][subKey] = obj[key][subKey].bind(instance);
        }
      });
    }

    instance[key] = obj[key];
  });
}

function classesToSelector(classes) {
  if (classes === void 0) {
    classes = '';
  }

  return "." + classes.trim().replace(/([\.:\/])/g, '\\$1') // eslint-disable-line
  .replace(/ /g, '.');
}

export { deleteProps, nextTick, now, getTranslate, isObject, extend, bindModuleMethods, getComputedStyle, classesToSelector };