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							- 'use strict';
 
- exports.__esModule = true;
 
- var _vue = require('vue');
 
- var _vue2 = _interopRequireDefault(_vue);
 
- var _popup = require('element-ui/lib/utils/popup');
 
- function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
- var PopperJS = _vue2.default.prototype.$isServer ? function () {} : require('./popper');
 
- var stop = function stop(e) {
 
-   return e.stopPropagation();
 
- };
 
- /**
 
-  * @param {HTMLElement} [reference=$refs.reference] - The reference element used to position the popper.
 
-  * @param {HTMLElement} [popper=$refs.popper] - The HTML element used as popper, or a configuration used to generate the popper.
 
-  * @param {String} [placement=button] - Placement of the popper accepted values: top(-start, -end), right(-start, -end), bottom(-start, -end), left(-start, -end)
 
-  * @param {Number} [offset=0] - Amount of pixels the popper will be shifted (can be negative).
 
-  * @param {Boolean} [visible=false] Visibility of the popup element.
 
-  * @param {Boolean} [visible-arrow=false] Visibility of the arrow, no style.
 
-  */
 
- exports.default = {
 
-   props: {
 
-     transformOrigin: {
 
-       type: [Boolean, String],
 
-       default: true
 
-     },
 
-     placement: {
 
-       type: String,
 
-       default: 'bottom'
 
-     },
 
-     boundariesPadding: {
 
-       type: Number,
 
-       default: 5
 
-     },
 
-     reference: {},
 
-     popper: {},
 
-     offset: {
 
-       default: 0
 
-     },
 
-     value: Boolean,
 
-     visibleArrow: Boolean,
 
-     arrowOffset: {
 
-       type: Number,
 
-       default: 35
 
-     },
 
-     appendToBody: {
 
-       type: Boolean,
 
-       default: true
 
-     },
 
-     popperOptions: {
 
-       type: Object,
 
-       default: function _default() {
 
-         return {
 
-           gpuAcceleration: false
 
-         };
 
-       }
 
-     }
 
-   },
 
-   data: function data() {
 
-     return {
 
-       showPopper: false,
 
-       currentPlacement: ''
 
-     };
 
-   },
 
-   watch: {
 
-     value: {
 
-       immediate: true,
 
-       handler: function handler(val) {
 
-         this.showPopper = val;
 
-         this.$emit('input', val);
 
-       }
 
-     },
 
-     showPopper: function showPopper(val) {
 
-       if (this.disabled) return;
 
-       val ? this.updatePopper() : this.destroyPopper();
 
-       this.$emit('input', val);
 
-     }
 
-   },
 
-   methods: {
 
-     createPopper: function createPopper() {
 
-       var _this = this;
 
-       if (this.$isServer) return;
 
-       this.currentPlacement = this.currentPlacement || this.placement;
 
-       if (!/^(top|bottom|left|right)(-start|-end)?$/g.test(this.currentPlacement)) {
 
-         return;
 
-       }
 
-       var options = this.popperOptions;
 
-       var popper = this.popperElm = this.popperElm || this.popper || this.$refs.popper;
 
-       var reference = this.referenceElm = this.referenceElm || this.reference || this.$refs.reference;
 
-       if (!reference && this.$slots.reference && this.$slots.reference[0]) {
 
-         reference = this.referenceElm = this.$slots.reference[0].elm;
 
-       }
 
-       if (!popper || !reference) return;
 
-       if (this.visibleArrow) this.appendArrow(popper);
 
-       if (this.appendToBody) document.body.appendChild(this.popperElm);
 
-       if (this.popperJS && this.popperJS.destroy) {
 
-         this.popperJS.destroy();
 
-       }
 
-       options.placement = this.currentPlacement;
 
-       options.offset = this.offset;
 
-       options.arrowOffset = this.arrowOffset;
 
-       this.popperJS = new PopperJS(reference, popper, options);
 
-       this.popperJS.onCreate(function (_) {
 
-         _this.$emit('created', _this);
 
-         _this.resetTransformOrigin();
 
-         _this.$nextTick(_this.updatePopper);
 
-       });
 
-       if (typeof options.onUpdate === 'function') {
 
-         this.popperJS.onUpdate(options.onUpdate);
 
-       }
 
-       this.popperJS._popper.style.zIndex = _popup.PopupManager.nextZIndex();
 
-       this.popperElm.addEventListener('click', stop);
 
-     },
 
-     updatePopper: function updatePopper() {
 
-       var popperJS = this.popperJS;
 
-       if (popperJS) {
 
-         popperJS.update();
 
-         if (popperJS._popper) {
 
-           popperJS._popper.style.zIndex = _popup.PopupManager.nextZIndex();
 
-         }
 
-       } else {
 
-         this.createPopper();
 
-       }
 
-     },
 
-     doDestroy: function doDestroy(forceDestroy) {
 
-       /* istanbul ignore if */
 
-       if (!this.popperJS || this.showPopper && !forceDestroy) return;
 
-       this.popperJS.destroy();
 
-       this.popperJS = null;
 
-     },
 
-     destroyPopper: function destroyPopper() {
 
-       if (this.popperJS) {
 
-         this.resetTransformOrigin();
 
-       }
 
-     },
 
-     resetTransformOrigin: function resetTransformOrigin() {
 
-       if (!this.transformOrigin) return;
 
-       var placementMap = {
 
-         top: 'bottom',
 
-         bottom: 'top',
 
-         left: 'right',
 
-         right: 'left'
 
-       };
 
-       var placement = this.popperJS._popper.getAttribute('x-placement').split('-')[0];
 
-       var origin = placementMap[placement];
 
-       this.popperJS._popper.style.transformOrigin = typeof this.transformOrigin === 'string' ? this.transformOrigin : ['top', 'bottom'].indexOf(placement) > -1 ? 'center ' + origin : origin + ' center';
 
-     },
 
-     appendArrow: function appendArrow(element) {
 
-       var hash = void 0;
 
-       if (this.appended) {
 
-         return;
 
-       }
 
-       this.appended = true;
 
-       for (var item in element.attributes) {
 
-         if (/^_v-/.test(element.attributes[item].name)) {
 
-           hash = element.attributes[item].name;
 
-           break;
 
-         }
 
-       }
 
-       var arrow = document.createElement('div');
 
-       if (hash) {
 
-         arrow.setAttribute(hash, '');
 
-       }
 
-       arrow.setAttribute('x-arrow', '');
 
-       arrow.className = 'popper__arrow';
 
-       element.appendChild(arrow);
 
-     }
 
-   },
 
-   beforeDestroy: function beforeDestroy() {
 
-     this.doDestroy(true);
 
-     if (this.popperElm && this.popperElm.parentNode === document.body) {
 
-       this.popperElm.removeEventListener('click', stop);
 
-       document.body.removeChild(this.popperElm);
 
-     }
 
-   },
 
-   // call destroy in keep-alive mode
 
-   deactivated: function deactivated() {
 
-     this.$options.beforeDestroy[0].call(this);
 
-   }
 
- };
 
 
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