@cw-devops/bk-magic-vue/lib/zoom-image.js

基于蓝鲸 Magicbox 和 Vue 的前端组件库

(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('vue')) :
  typeof define === 'function' && define.amd ? define(['exports', 'vue'], factory) :
  (global = global || self, factory(global.library = {}, global.Vue));
}(this, function (exports, Vue) { 'use strict';

  Vue = Vue && Vue.hasOwnProperty('default') ? Vue['default'] : Vue;

  function _extends() {
    _extends = Object.assign ? Object.assign.bind() : function (target) {
      for (var i = 1; i < arguments.length; i++) {
        var source = arguments[i];
        for (var key in source) {
          if (Object.prototype.hasOwnProperty.call(source, key)) {
            target[key] = source[key];
          }
        }
      }
      return target;
    };
    return _extends.apply(this, arguments);
  }

  function getTarget(node) {
    if (node === void 0) {
      node = document.body;
    }
    if (node === true) {
      return document.body;
    }
    return node instanceof window.Node ? node : document.querySelector(node);
  }
  var transferDom = {
    inserted: function inserted(el, _ref, vnode) {
      var value = _ref.value;
      if (el.dataset.transfer !== 'true') {
        return false;
      }
      el.className = el.className ? el.className + ' v-transfer-dom' : 'v-transfer-dom';
      var parentNode = el.parentNode;
      if (!parentNode) {
        return;
      }
      var home = document.createComment('');
      var hasMovedOut = false;
      if (value !== false) {
        parentNode.replaceChild(home, el);
        getTarget(value).appendChild(el);
        hasMovedOut = true;
      }
      if (!el.__transferDomData) {
        el.__transferDomData = {
          parentNode: parentNode,
          home: home,
          target: getTarget(value),
          hasMovedOut: hasMovedOut
        };
      }
    },
    componentUpdated: function componentUpdated(el, _ref2) {
      var value = _ref2.value;
      if (el.dataset.transfer !== 'true') {
        return false;
      }
      var ref$1 = el.__transferDomData;
      if (!ref$1) {
        return;
      }
      var parentNode = ref$1.parentNode;
      var home = ref$1.home;
      var hasMovedOut = ref$1.hasMovedOut;
      if (!hasMovedOut && value) {
        parentNode.replaceChild(home, el);
        getTarget(value).appendChild(el);
        el.__transferDomData = _extends({}, el.__transferDomData, {
          hasMovedOut: true,
          target: getTarget(value)
        });
      } else if (hasMovedOut && value === false) {
        parentNode.replaceChild(el, home);
        el.__transferDomData = _extends({}, el.__transferDomData, {
          hasMovedOut: false,
          target: getTarget(value)
        });
      } else if (value) {
        getTarget(value).appendChild(el);
      }
    },
    unbind: function unbind(el) {
      if (el.dataset.transfer !== 'true') {
        return false;
      }
      el.className = el.className.replace('v-transfer-dom', '');
      var ref$1 = el.__transferDomData;
      if (!ref$1) {
        return;
      }
      if (el.__transferDomData.hasMovedOut === true) {
        el.__transferDomData.parentNode && el.__transferDomData.parentNode.appendChild(el);
      }
      el.__transferDomData = null;
    }
  };
  transferDom.install = function (Vue) {
    Vue.directive('bk-transfer-dom', transferDom);
  };

  function createCommonjsModule(fn, module) {
  	return module = { exports: {} }, fn(module, module.exports), module.exports;
  }

  var _global = createCommonjsModule(function (module) {
  var global = module.exports = typeof window != 'undefined' && window.Math == Math
    ? window : typeof self != 'undefined' && self.Math == Math ? self
    : Function('return this')();
  if (typeof __g == 'number') __g = global;
  });

  var _core = createCommonjsModule(function (module) {
  var core = module.exports = { version: '2.6.12' };
  if (typeof __e == 'number') __e = core;
  });
  var _core_1 = _core.version;

  var _aFunction = function (it) {
    if (typeof it != 'function') throw TypeError(it + ' is not a function!');
    return it;
  };

  var _ctx = function (fn, that, length) {
    _aFunction(fn);
    if (that === undefined) return fn;
    switch (length) {
      case 1: return function (a) {
        return fn.call(that, a);
      };
      case 2: return function (a, b) {
        return fn.call(that, a, b);
      };
      case 3: return function (a, b, c) {
        return fn.call(that, a, b, c);
      };
    }
    return function () {
      return fn.apply(that, arguments);
    };
  };

  var _isObject = function (it) {
    return typeof it === 'object' ? it !== null : typeof it === 'function';
  };

  var _anObject = function (it) {
    if (!_isObject(it)) throw TypeError(it + ' is not an object!');
    return it;
  };

  var _fails = function (exec) {
    try {
      return !!exec();
    } catch (e) {
      return true;
    }
  };

  var _descriptors = !_fails(function () {
    return Object.defineProperty({}, 'a', { get: function () { return 7; } }).a != 7;
  });

  var document$1 = _global.document;
  var is = _isObject(document$1) && _isObject(document$1.createElement);
  var _domCreate = function (it) {
    return is ? document$1.createElement(it) : {};
  };

  var _ie8DomDefine = !_descriptors && !_fails(function () {
    return Object.defineProperty(_domCreate('div'), 'a', { get: function () { return 7; } }).a != 7;
  });

  var _toPrimitive = function (it, S) {
    if (!_isObject(it)) return it;
    var fn, val;
    if (S && typeof (fn = it.toString) == 'function' && !_isObject(val = fn.call(it))) return val;
    if (typeof (fn = it.valueOf) == 'function' && !_isObject(val = fn.call(it))) return val;
    if (!S && typeof (fn = it.toString) == 'function' && !_isObject(val = fn.call(it))) return val;
    throw TypeError("Can't convert object to primitive value");
  };

  var dP = Object.defineProperty;
  var f = _descriptors ? Object.defineProperty : function defineProperty(O, P, Attributes) {
    _anObject(O);
    P = _toPrimitive(P, true);
    _anObject(Attributes);
    if (_ie8DomDefine) try {
      return dP(O, P, Attributes);
    } catch (e) {  }
    if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported!');
    if ('value' in Attributes) O[P] = Attributes.value;
    return O;
  };
  var _objectDp = {
  	f: f
  };

  var _propertyDesc = function (bitmap, value) {
    return {
      enumerable: !(bitmap & 1),
      configurable: !(bitmap & 2),
      writable: !(bitmap & 4),
      value: value
    };
  };

  var _hide = _descriptors ? function (object, key, value) {
    return _objectDp.f(object, key, _propertyDesc(1, value));
  } : function (object, key, value) {
    object[key] = value;
    return object;
  };

  var hasOwnProperty = {}.hasOwnProperty;
  var _has = function (it, key) {
    return hasOwnProperty.call(it, key);
  };

  var PROTOTYPE = 'prototype';
  var $export = function (type, name, source) {
    var IS_FORCED = type & $export.F;
    var IS_GLOBAL = type & $export.G;
    var IS_STATIC = type & $export.S;
    var IS_PROTO = type & $export.P;
    var IS_BIND = type & $export.B;
    var IS_WRAP = type & $export.W;
    var exports = IS_GLOBAL ? _core : _core[name] || (_core[name] = {});
    var expProto = exports[PROTOTYPE];
    var target = IS_GLOBAL ? _global : IS_STATIC ? _global[name] : (_global[name] || {})[PROTOTYPE];
    var key, own, out;
    if (IS_GLOBAL) source = name;
    for (key in source) {
      own = !IS_FORCED && target && target[key] !== undefined;
      if (own && _has(exports, key)) continue;
      out = own ? target[key] : source[key];
      exports[key] = IS_GLOBAL && typeof target[key] != 'function' ? source[key]
      : IS_BIND && own ? _ctx(out, _global)
      : IS_WRAP && target[key] == out ? (function (C) {
        var F = function (a, b, c) {
          if (this instanceof C) {
            switch (arguments.length) {
              case 0: return new C();
              case 1: return new C(a);
              case 2: return new C(a, b);
            } return new C(a, b, c);
          } return C.apply(this, arguments);
        };
        F[PROTOTYPE] = C[PROTOTYPE];
        return F;
      })(out) : IS_PROTO && typeof out == 'function' ? _ctx(Function.call, out) : out;
      if (IS_PROTO) {
        (exports.virtual || (exports.virtual = {}))[key] = out;
        if (type & $export.R && expProto && !expProto[key]) _hide(expProto, key, out);
      }
    }
  };
  $export.F = 1;
  $export.G = 2;
  $export.S = 4;
  $export.P = 8;
  $export.B = 16;
  $export.W = 32;
  $export.U = 64;
  $export.R = 128;
  var _export = $export;

  _export(_export.S + _export.F * !_descriptors, 'Object', { defineProperty: _objectDp.f });

  var $Object = _core.Object;
  var defineProperty = function defineProperty(it, key, desc) {
    return $Object.defineProperty(it, key, desc);
  };

  var defineProperty$1 = defineProperty;

  var hasInitZIndex = false;
  var zIndex;
  (function () {
    if (!window['__bk_zIndex_manager']) {
      var zIndexManager = {
        nextZIndex: function nextZIndex() {
          var zIndex = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 'default';
          return zIndex === 'default' ? zIndexManager.zIndex++ : zIndex;
        },
        nextTickIndex: function nextTickIndex() {
          var tick = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 1;
          var zIndex = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'default';
          if (zIndex === 'default') {
            zIndexManager.zIndex += tick;
            return zIndexManager.zIndex;
          }
          return zIndex;
        }
      };
      defineProperty$1(zIndexManager, 'zIndex', {
        configurable: true,
        get: function get() {
          if (!hasInitZIndex) {
            zIndex = zIndex || (Vue.prototype.$BK_EL || {}).zIndex || 2000;
            hasInitZIndex = true;
          }
          return zIndex;
        },
        set: function set(value) {
          zIndex = value;
        }
      });
      window['__bk_zIndex_manager'] = zIndexManager;
    }
  })();
  var zIndexManager = window['__bk_zIndex_manager'];

  var zIndex$1 = {
    props: {
      zIndex: {
        type: [Number, String],
        default: 'default'
      }
    },
    methods: {
      getLocalZIndex: function getLocalZIndex(zIndex) {
        return zIndexManager.nextTickIndex(2, zIndex);
      }
    }
  };

  var script = {
    name: 'bk-zoom-image',
    directives: {
      transferDom: transferDom
    },
    mixins: [zIndex$1],
    props: {
      src: String,
      extCls: String,
      zIndex: {
        type: Number,
        default: 2000
      },
      transfer: {
        type: Boolean,
        default: true
      }
    },
    data: function data() {
      return {
        imgSrc: '',
        isInit: true,
        startMove: false,
        startTime: 0,
        startX: 0,
        startY: 0,
        width: 0,
        height: 0,
        top: 0,
        left: 0,
        popIndex: 0
      };
    },
    watch: {
      imgSrc: function imgSrc(val) {
        if (val) {
          this.isInit = true;
          this.width = 0;
          this.height = 0;
          this.top = 0;
          this.left = 0;
        }
      }
    },
    methods: {
      showImg: function showImg() {
        this.imgSrc = this.src;
        this.popIndex = this.transfer ? this.getLocalZIndex() : this.zIndex;
      },
      startChange: function startChange(event) {
        if (!this.isInit) return;
        this.top = event.clientY - event.offsetY;
        this.left = event.clientX - event.offsetX;
        this.width = this.$refs.screenImg.clientWidth;
        this.height = this.$refs.screenImg.clientHeight;
        this.isInit = false;
      },
      scrollImage: function scrollImage(event) {
        var deltaY = Math.max(-1, Math.min(1, event.wheelDeltaY || -event.detail));
        var zoomDis = deltaY * 0.2;
        this.startChange(event);
        this.width += this.width * zoomDis;
        this.height += this.height * zoomDis;
        this.top -= event.offsetY * zoomDis;
        this.left -= event.offsetX * zoomDis;
      },
      mouseDown: function mouseDown(event) {
        event.preventDefault();
        this.startTime = new Date();
        this.startX = event.clientX;
        this.startY = event.clientY;
        this.startMove = true;
        this.startChange(event);
      },
      mouseMove: function mouseMove(event) {
        if (!this.startMove) return;
        this.top += event.clientY - (this.mouseMove.tempY || this.startY);
        this.left += event.clientX - (this.mouseMove.tempX || this.startX);
        this.mouseMove.tempY = event.clientY;
        this.mouseMove.tempX = event.clientX;
      },
      mouseUp: function mouseUp(event) {
        var diffTime = new Date() - this.startTime;
        var diffDis = Math.sqrt(Math.pow(event.clientX - this.startX, 2) + Math.pow(event.clientY - this.startY, 2));
        if (!this.startMove || diffTime < 300 && diffDis < 20) this.imgSrc = '';
        this.mouseMove.tempY = 0;
        this.mouseMove.tempX = 0;
        this.startMove = false;
      }
    }
  };

  function normalizeComponent(template, style, script, scopeId, isFunctionalTemplate, moduleIdentifier
  , shadowMode, createInjector, createInjectorSSR, createInjectorShadow) {
    if (typeof shadowMode !== 'boolean') {
      createInjectorSSR = createInjector;
      createInjector = shadowMode;
      shadowMode = false;
    }
    var options = typeof script === 'function' ? script.options : script;
    if (template && template.render) {
      options.render = template.render;
      options.staticRenderFns = template.staticRenderFns;
      options._compiled = true;
      if (isFunctionalTemplate) {
        options.functional = true;
      }
    }
    if (scopeId) {
      options._scopeId = scopeId;
    }
    var hook;
    if (moduleIdentifier) {
      hook = function hook(context) {
        context = context ||
        this.$vnode && this.$vnode.ssrContext ||
        this.parent && this.parent.$vnode && this.parent.$vnode.ssrContext;
        if (!context && typeof __VUE_SSR_CONTEXT__ !== 'undefined') {
          context = __VUE_SSR_CONTEXT__;
        }
        if (style) {
          style.call(this, createInjectorSSR(context));
        }
        if (context && context._registeredComponents) {
          context._registeredComponents.add(moduleIdentifier);
        }
      };
      options._ssrRegister = hook;
    } else if (style) {
      hook = shadowMode ? function () {
        style.call(this, createInjectorShadow(this.$root.$options.shadowRoot));
      } : function (context) {
        style.call(this, createInjector(context));
      };
    }
    if (hook) {
      if (options.functional) {
        var originalRender = options.render;
        options.render = function renderWithStyleInjection(h, context) {
          hook.call(context);
          return originalRender(h, context);
        };
      } else {
        var existing = options.beforeCreate;
        options.beforeCreate = existing ? [].concat(existing, hook) : [hook];
      }
    }
    return script;
  }
  var normalizeComponent_1 = normalizeComponent;

  /* script */
  var __vue_script__ = script;
  /* template */
  var __vue_render__ = function __vue_render__() {
    var _vm = this;
    var _h = _vm.$createElement;
    var _c = _vm._self._c || _h;
    return _c('section', {
      class: [_vm.extCls, 'bk-zoom-image']
    }, [_c('img', {
      staticClass: "bk-real-image",
      attrs: {
        "src": _vm.src
      },
      on: {
        "click": _vm.showImg
      }
    }), _c('transition', {
      attrs: {
        "name": "fade"
      }
    }, [_c('div', {
      directives: [{
        name: "transfer-dom",
        rawName: "v-transfer-dom"
      }],
      staticClass: "bk-zoom-image",
      staticStyle: {
        "position": "absolute",
        "top": "-100000px",
        "left": "-100000px"
      },
      attrs: {
        "data-transfer": _vm.transfer
      }
    }, [_vm.imgSrc ? _c('section', {
      staticClass: "bk-full-screen",
      style: {
        zIndex: _vm.popIndex
      },
      on: {
        "mousemove": _vm.mouseMove,
        "mouseup": _vm.mouseUp
      }
    }, [_c('img', {
      ref: "screenImg",
      class: [{
        'bk-zoom-init': _vm.isInit
      }, 'bk-full-image'],
      style: {
        width: _vm.width + "px",
        height: _vm.height + "px",
        top: _vm.top + "px",
        left: _vm.left + "px"
      },
      attrs: {
        "src": _vm.imgSrc
      },
      on: {
        "mousewheel": function mousewheel($event) {
          $event.preventDefault();
          return _vm.scrollImage($event);
        },
        "DOMMouseScroll": function DOMMouseScroll($event) {
          $event.preventDefault();
          return _vm.scrollImage($event);
        },
        "mousedown": _vm.mouseDown
      }
    })]) : _vm._e()])])], 1);
  };
  var __vue_staticRenderFns__ = [];

  /* style */
  var __vue_inject_styles__ = undefined;
  /* scoped */
  var __vue_scope_id__ = undefined;
  /* module identifier */
  var __vue_module_identifier__ = undefined;
  /* functional template */
  var __vue_is_functional_template__ = false;
  /* style inject */

  /* style inject SSR */

  /* style inject shadow dom */

  var __vue_component__ = /*#__PURE__*/normalizeComponent_1({
    render: __vue_render__,
    staticRenderFns: __vue_staticRenderFns__
  }, __vue_inject_styles__, __vue_script__, __vue_scope_id__, __vue_is_functional_template__, __vue_module_identifier__, false, undefined, undefined, undefined);

  var _defined = function (it) {
    if (it == undefined) throw TypeError("Can't call method on  " + it);
    return it;
  };

  var _toObject = function (it) {
    return Object(_defined(it));
  };

  var toString = {}.toString;
  var _cof = function (it) {
    return toString.call(it).slice(8, -1);
  };

  var _iobject = Object('z').propertyIsEnumerable(0) ? Object : function (it) {
    return _cof(it) == 'String' ? it.split('') : Object(it);
  };

  var _toIobject = function (it) {
    return _iobject(_defined(it));
  };

  var ceil = Math.ceil;
  var floor = Math.floor;
  var _toInteger = function (it) {
    return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it);
  };

  var min = Math.min;
  var _toLength = function (it) {
    return it > 0 ? min(_toInteger(it), 0x1fffffffffffff) : 0;
  };

  var max = Math.max;
  var min$1 = Math.min;
  var _toAbsoluteIndex = function (index, length) {
    index = _toInteger(index);
    return index < 0 ? max(index + length, 0) : min$1(index, length);
  };

  var _arrayIncludes = function (IS_INCLUDES) {
    return function ($this, el, fromIndex) {
      var O = _toIobject($this);
      var length = _toLength(O.length);
      var index = _toAbsoluteIndex(fromIndex, length);
      var value;
      if (IS_INCLUDES && el != el) while (length > index) {
        value = O[index++];
        if (value != value) return true;
      } else for (;length > index; index++) if (IS_INCLUDES || index in O) {
        if (O[index] === el) return IS_INCLUDES || index || 0;
      } return !IS_INCLUDES && -1;
    };
  };

  var _shared = createCommonjsModule(function (module) {
  var SHARED = '__core-js_shared__';
  var store = _global[SHARED] || (_global[SHARED] = {});
  (module.exports = function (key, value) {
    return store[key] || (store[key] = value !== undefined ? value : {});
  })('versions', []).push({
    version: _core.version,
    mode:  'pure' ,
    copyright: '© 2020 Denis Pushkarev (zloirock.ru)'
  });
  });

  var id = 0;
  var px = Math.random();
  var _uid = function (key) {
    return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36));
  };

  var shared = _shared('keys');
  var _sharedKey = function (key) {
    return shared[key] || (shared[key] = _uid(key));
  };

  var arrayIndexOf = _arrayIncludes(false);
  var IE_PROTO = _sharedKey('IE_PROTO');
  var _objectKeysInternal = function (object, names) {
    var O = _toIobject(object);
    var i = 0;
    var result = [];
    var key;
    for (key in O) if (key != IE_PROTO) _has(O, key) && result.push(key);
    while (names.length > i) if (_has(O, key = names[i++])) {
      ~arrayIndexOf(result, key) || result.push(key);
    }
    return result;
  };

  var _enumBugKeys = (
    'constructor,hasOwnProperty,isPrototypeOf,propertyIsEnumerable,toLocaleString,toString,valueOf'
  ).split(',');

  var _objectKeys = Object.keys || function keys(O) {
    return _objectKeysInternal(O, _enumBugKeys);
  };

  var _objectSap = function (KEY, exec) {
    var fn = (_core.Object || {})[KEY] || Object[KEY];
    var exp = {};
    exp[KEY] = exec(fn);
    _export(_export.S + _export.F * _fails(function () { fn(1); }), 'Object', exp);
  };

  _objectSap('keys', function () {
    return function keys(it) {
      return _objectKeys(_toObject(it));
    };
  });

  var keys = _core.Object.keys;

  var keys$1 = keys;

  function setInstaller (component, afterInstall) {
    component.install = function (Vue) {
      var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
      var props = component.props || {};
      keys$1(options).forEach(function (key) {
        if (props.hasOwnProperty(key)) {
          if (typeof props[key] === 'function' || props[key] instanceof Array) {
            props[key] = {
              type: props[key],
              default: options[key]
            };
          } else {
            props[key].default = options[key];
          }
        }
      });
      component.name = options.namespace ? component.name.replace('bk', options.namespace) : component.name;
      Vue.component(component.name, component);
      typeof afterInstall === 'function' && afterInstall(Vue, options);
    };
  }

  setInstaller(__vue_component__);

  exports.default = __vue_component__;

  Object.defineProperty(exports, '__esModule', { value: true });

}));