zyAdmin/node_modules/dom-zindex/dist/index.umd.js

(function (global, factory) {
  if (typeof define === "function" && define.amd) {
    define("dom-zindex", ["exports"], factory);
  } else if (typeof exports !== "undefined") {
    factory(exports);
  } else {
    var mod = {
      exports: {}
    };
    factory(mod.exports);
    global.domZindex = mod.exports;
  }
})(typeof globalThis !== "undefined" ? globalThis : typeof self !== "undefined" ? self : this, function (_exports) {
  "use strict";

  Object.defineProperty(_exports, "__esModule", {
    value: true
  });
  _exports.getCurrent = _exports["default"] = void 0;
  _exports.getNext = getNext;
  _exports.getSubCurrent = getSubCurrent;
  _exports.getSubNext = getSubNext;
  _exports.setSubCurrent = _exports.setCurrent = void 0;
  var winDom = null;
  var bodyEl = null;
  var storeEl = null;
  var storeId = 'z-index-manage';
  var styleEl = null;
  var styleId = 'z-index-style';
  var storeMainKey = 'm';
  var storeSubKey = 's';
  var storeData = {
    m: 1000,
    s: 1000
  };
  function getDocument() {
    if (!winDom) {
      if (typeof document !== 'undefined') {
        winDom = document;
      }
    }
    return winDom;
  }
  function getBody() {
    if (winDom && !bodyEl) {
      bodyEl = winDom.body || winDom.getElementsByTagName('body')[0];
    }
    return bodyEl;
  }
  function getDomMaxZIndex() {
    var max = 0;
    var dom = getDocument();
    if (dom) {
      var body = getBody();
      if (body) {
        var allElem = body.getElementsByTagName('*');
        for (var i = 0; i < allElem.length; i++) {
          var elem = allElem[i];
          if (elem && elem.style && elem.nodeType === 1) {
            var zIndex = elem.style.zIndex;
            if (zIndex && /^\d+$/.test(zIndex)) {
              max = Math.max(max, Number(zIndex));
            }
          }
        }
      }
    }
    return max;
  }
  function getStyle() {
    if (!styleEl) {
      var dom = getDocument();
      if (dom) {
        styleEl = dom.getElementById(styleId);
        if (!styleEl) {
          styleEl = dom.createElement('style');
          styleEl.id = styleId;
          dom.getElementsByTagName('head')[0].appendChild(styleEl);
        }
      }
    }
    return styleEl;
  }
  function updateVar() {
    var styEl = getStyle();
    if (styEl) {
      var prefixes = '--dom-';
      var propKey = '-z-index';
      styEl.innerHTML = ':root{' + prefixes + 'main' + propKey + ':' + getCurrent() + ';' + prefixes + 'sub' + propKey + ':' + getSubCurrent() + '}';
    }
  }
  function getStoreDom() {
    if (!storeEl) {
      var dom = getDocument();
      if (dom) {
        storeEl = dom.getElementById(storeId);
        if (!storeEl) {
          var body = getBody();
          if (body) {
            storeEl = dom.createElement('div');
            storeEl.id = storeId;
            storeEl.style.display = 'none';
            body.appendChild(storeEl);
            setCurrent(storeData.m);
            setSubCurrent(storeData.s);
          }
        }
      }
    }
    return storeEl;
  }
  function createSetHandle(key) {
    return function (value) {
      if (value) {
        value = Number(value);
        storeData[key] = value;
        var el = getStoreDom();
        if (el) {
          if (el.dataset) {
            el.dataset[key] = value + '';
          } else {
            el.setAttribute('data-' + key, value + '');
          }
        }
      }
      updateVar();
      return storeData[key];
    };
  }
  var setCurrent = _exports.setCurrent = createSetHandle(storeMainKey);
  function createGetHandle(key, nextMethod) {
    return function getCurrent(currZindex) {
      var zIndex;
      var el = getStoreDom();
      if (el) {
        var domVal = el.dataset ? el.dataset[key] : el.getAttribute('data-' + key);
        if (domVal) {
          zIndex = Number(domVal);
        }
      }
      if (!zIndex) {
        zIndex = storeData[key];
      }
      if (currZindex) {
        if (Number(currZindex) < zIndex) {
          return nextMethod();
        }
        return currZindex;
      }
      return zIndex;
    };
  }
  var getCurrent = _exports.getCurrent = createGetHandle(storeMainKey, getNext);
  function getNext() {
    return setCurrent(getCurrent() + 1);
  }
  var setSubCurrent = _exports.setSubCurrent = createSetHandle(storeSubKey);
  var _getSubCurrent = createGetHandle(storeSubKey, getSubNext);
  function getSubCurrent() {
    return getCurrent() + _getSubCurrent();
  }
  function getSubNext() {
    setSubCurrent(_getSubCurrent() + 1);
    return getSubCurrent();
  }
  /**
   * Web common z-index style management
   */
  var DomZIndex = {
    setCurrent: setCurrent,
    getCurrent: getCurrent,
    getNext: getNext,
    setSubCurrent: setSubCurrent,
    getSubCurrent: getSubCurrent,
    getSubNext: getSubNext,
    getMax: getDomMaxZIndex
  };
  updateVar();
  var _default = _exports["default"] = DomZIndex;
});