element-ui/lib/tabs.js

A Component Library for Vue.js.

module.exports =
/******/ (function(modules) { // webpackBootstrap
/******/ 	// The module cache
/******/ 	var installedModules = {};
/******/
/******/ 	// The require function
/******/ 	function __webpack_require__(moduleId) {
/******/
/******/ 		// Check if module is in cache
/******/ 		if(installedModules[moduleId]) {
/******/ 			return installedModules[moduleId].exports;
/******/ 		}
/******/ 		// Create a new module (and put it into the cache)
/******/ 		var module = installedModules[moduleId] = {
/******/ 			i: moduleId,
/******/ 			l: false,
/******/ 			exports: {}
/******/ 		};
/******/
/******/ 		// Execute the module function
/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
/******/
/******/ 		// Flag the module as loaded
/******/ 		module.l = true;
/******/
/******/ 		// Return the exports of the module
/******/ 		return module.exports;
/******/ 	}
/******/
/******/
/******/ 	// expose the modules object (__webpack_modules__)
/******/ 	__webpack_require__.m = modules;
/******/
/******/ 	// expose the module cache
/******/ 	__webpack_require__.c = installedModules;
/******/
/******/ 	// define getter function for harmony exports
/******/ 	__webpack_require__.d = function(exports, name, getter) {
/******/ 		if(!__webpack_require__.o(exports, name)) {
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/******/ 				get: getter
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/******/ 		}
/******/ 	};
/******/
/******/ 	// getDefaultExport function for compatibility with non-harmony modules
/******/ 	__webpack_require__.n = function(module) {
/******/ 		var getter = module && module.__esModule ?
/******/ 			function getDefault() { return module['default']; } :
/******/ 			function getModuleExports() { return module; };
/******/ 		__webpack_require__.d(getter, 'a', getter);
/******/ 		return getter;
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/******/ 	return __webpack_require__(__webpack_require__.s = 232);
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/******/ ({

/***/ 0:
/***/ (function(module, exports) {

/* globals __VUE_SSR_CONTEXT__ */

// IMPORTANT: Do NOT use ES2015 features in this file.
// This module is a runtime utility for cleaner component module output and will
// be included in the final webpack user bundle.

module.exports = function normalizeComponent (
  rawScriptExports,
  compiledTemplate,
  functionalTemplate,
  injectStyles,
  scopeId,
  moduleIdentifier /* server only */
) {
  var esModule
  var scriptExports = rawScriptExports = rawScriptExports || {}

  // ES6 modules interop
  var type = typeof rawScriptExports.default
  if (type === 'object' || type === 'function') {
    esModule = rawScriptExports
    scriptExports = rawScriptExports.default
  }

  // Vue.extend constructor export interop
  var options = typeof scriptExports === 'function'
    ? scriptExports.options
    : scriptExports

  // render functions
  if (compiledTemplate) {
    options.render = compiledTemplate.render
    options.staticRenderFns = compiledTemplate.staticRenderFns
    options._compiled = true
  }

  // functional template
  if (functionalTemplate) {
    options.functional = true
  }

  // scopedId
  if (scopeId) {
    options._scopeId = scopeId
  }

  var hook
  if (moduleIdentifier) { // server build
    hook = function (context) {
      // 2.3 injection
      context =
        context || // cached call
        (this.$vnode && this.$vnode.ssrContext) || // stateful
        (this.parent && this.parent.$vnode && this.parent.$vnode.ssrContext) // functional
      // 2.2 with runInNewContext: true
      if (!context && typeof __VUE_SSR_CONTEXT__ !== 'undefined') {
        context = __VUE_SSR_CONTEXT__
      }
      // inject component styles
      if (injectStyles) {
        injectStyles.call(this, context)
      }
      // register component module identifier for async chunk inferrence
      if (context && context._registeredComponents) {
        context._registeredComponents.add(moduleIdentifier)
      }
    }
    // used by ssr in case component is cached and beforeCreate
    // never gets called
    options._ssrRegister = hook
  } else if (injectStyles) {
    hook = injectStyles
  }

  if (hook) {
    var functional = options.functional
    var existing = functional
      ? options.render
      : options.beforeCreate

    if (!functional) {
      // inject component registration as beforeCreate hook
      options.beforeCreate = existing
        ? [].concat(existing, hook)
        : [hook]
    } else {
      // for template-only hot-reload because in that case the render fn doesn't
      // go through the normalizer
      options._injectStyles = hook
      // register for functioal component in vue file
      options.render = function renderWithStyleInjection (h, context) {
        hook.call(context)
        return existing(h, context)
      }
    }
  }

  return {
    esModule: esModule,
    exports: scriptExports,
    options: options
  }
}


/***/ }),

/***/ 18:
/***/ (function(module, exports) {

module.exports = require("element-ui/lib/utils/resize-event");

/***/ }),

/***/ 232:
/***/ (function(module, exports, __webpack_require__) {

"use strict";


exports.__esModule = true;

var _tabs = __webpack_require__(233);

var _tabs2 = _interopRequireDefault(_tabs);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/* istanbul ignore next */
_tabs2.default.install = function (Vue) {
  Vue.component(_tabs2.default.name, _tabs2.default);
};

exports.default = _tabs2.default;

/***/ }),

/***/ 233:
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
Object.defineProperty(__webpack_exports__, "__esModule", { value: true });
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__babel_loader_node_modules_vue_loader_lib_selector_type_script_index_0_tabs_vue__ = __webpack_require__(234);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__babel_loader_node_modules_vue_loader_lib_selector_type_script_index_0_tabs_vue___default = __webpack_require__.n(__WEBPACK_IMPORTED_MODULE_0__babel_loader_node_modules_vue_loader_lib_selector_type_script_index_0_tabs_vue__);
var normalizeComponent = __webpack_require__(0)
/* script */

/* template */
var __vue_template__ = null
/* template functional */
  var __vue_template_functional__ = false
/* styles */
var __vue_styles__ = null
/* scopeId */
var __vue_scopeId__ = null
/* moduleIdentifier (server only) */
var __vue_module_identifier__ = null
var Component = normalizeComponent(
  __WEBPACK_IMPORTED_MODULE_0__babel_loader_node_modules_vue_loader_lib_selector_type_script_index_0_tabs_vue___default.a,
  __vue_template__,
  __vue_template_functional__,
  __vue_styles__,
  __vue_scopeId__,
  __vue_module_identifier__
)

/* harmony default export */ __webpack_exports__["default"] = (Component.exports);


/***/ }),

/***/ 234:
/***/ (function(module, exports, __webpack_require__) {

"use strict";


exports.__esModule = true;

var _tabNav = __webpack_require__(235);

var _tabNav2 = _interopRequireDefault(_tabNav);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = {
  name: 'ElTabs',

  components: {
    TabNav: _tabNav2.default
  },

  props: {
    type: String,
    activeName: String,
    closable: Boolean,
    addable: Boolean,
    value: {},
    editable: Boolean,
    tabPosition: {
      type: String,
      default: 'top'
    },
    beforeLeave: Function,
    stretch: Boolean
  },

  provide: function provide() {
    return {
      rootTabs: this
    };
  },
  data: function data() {
    return {
      currentName: this.value || this.activeName,
      panes: []
    };
  },


  watch: {
    activeName: function activeName(value) {
      this.setCurrentName(value);
    },
    value: function value(_value) {
      this.setCurrentName(_value);
    },
    currentName: function currentName(value) {
      var _this = this;

      if (this.$refs.nav) {
        this.$nextTick(function (_) {
          _this.$refs.nav.scrollToActiveTab();
        });
      }
    }
  },

  methods: {
    handleTabClick: function handleTabClick(tab, tabName, event) {
      if (tab.disabled) return;
      this.setCurrentName(tabName);
      this.$emit('tab-click', tab, event);
    },
    handleTabRemove: function handleTabRemove(pane, ev) {
      if (pane.disabled) return;
      ev.stopPropagation();
      this.$emit('edit', pane.name, 'remove');
      this.$emit('tab-remove', pane.name);
    },
    handleTabAdd: function handleTabAdd() {
      this.$emit('edit', null, 'add');
      this.$emit('tab-add');
    },
    setCurrentName: function setCurrentName(value) {
      var _this2 = this;

      var changeCurrentName = function changeCurrentName() {
        _this2.currentName = value;
        _this2.$emit('input', value);
      };
      if (this.currentName !== value && this.beforeLeave) {
        var before = this.beforeLeave(value, this.currentName);
        if (before && before.then) {
          before.then(function () {
            changeCurrentName();

            _this2.$refs.nav && _this2.$refs.nav.removeFocus();
          });
        } else if (before !== false) {
          changeCurrentName();
        }
      } else {
        changeCurrentName();
      }
    },
    addPanes: function addPanes(item) {
      var index = this.$slots.default.indexOf(item.$vnode);
      this.panes.splice(index, 0, item);
    },
    removePanes: function removePanes(item) {
      var panes = this.panes;
      var index = panes.indexOf(item);
      if (index > -1) {
        panes.splice(index, 1);
      }
    }
  },
  render: function render(h) {
    var _ref;

    var type = this.type,
        handleTabClick = this.handleTabClick,
        handleTabRemove = this.handleTabRemove,
        handleTabAdd = this.handleTabAdd,
        currentName = this.currentName,
        panes = this.panes,
        editable = this.editable,
        addable = this.addable,
        tabPosition = this.tabPosition,
        stretch = this.stretch;


    var newButton = editable || addable ? h(
      'span',
      {
        'class': 'el-tabs__new-tab',
        on: {
          'click': handleTabAdd,
          'keydown': function keydown(ev) {
            if (ev.keyCode === 13) {
              handleTabAdd();
            }
          }
        },
        attrs: {
          tabindex: '0'
        }
      },
      [h(
        'i',
        { 'class': 'el-icon-plus' },
        []
      )]
    ) : null;

    var navData = {
      props: {
        currentName: currentName,
        onTabClick: handleTabClick,
        onTabRemove: handleTabRemove,
        editable: editable,
        type: type,
        panes: panes,
        stretch: stretch
      },
      ref: 'nav'
    };
    var header = h(
      'div',
      { 'class': ['el-tabs__header', 'is-' + tabPosition] },
      [newButton, h(
        'tab-nav',
        navData,
        []
      )]
    );
    var panels = h(
      'div',
      { 'class': 'el-tabs__content' },
      [this.$slots.default]
    );

    return h(
      'div',
      { 'class': (_ref = {
          'el-tabs': true,
          'el-tabs--card': type === 'card'
        }, _ref['el-tabs--' + tabPosition] = true, _ref['el-tabs--border-card'] = type === 'border-card', _ref) },
      [tabPosition !== 'bottom' ? [header, panels] : [panels, header]]
    );
  },
  created: function created() {
    if (!this.currentName) {
      this.setCurrentName('0');
    }
  }
};

/***/ }),

/***/ 235:
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
Object.defineProperty(__webpack_exports__, "__esModule", { value: true });
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__babel_loader_node_modules_vue_loader_lib_selector_type_script_index_0_tab_nav_vue__ = __webpack_require__(236);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__babel_loader_node_modules_vue_loader_lib_selector_type_script_index_0_tab_nav_vue___default = __webpack_require__.n(__WEBPACK_IMPORTED_MODULE_0__babel_loader_node_modules_vue_loader_lib_selector_type_script_index_0_tab_nav_vue__);
var normalizeComponent = __webpack_require__(0)
/* script */

/* template */
var __vue_template__ = null
/* template functional */
  var __vue_template_functional__ = false
/* styles */
var __vue_styles__ = null
/* scopeId */
var __vue_scopeId__ = null
/* moduleIdentifier (server only) */
var __vue_module_identifier__ = null
var Component = normalizeComponent(
  __WEBPACK_IMPORTED_MODULE_0__babel_loader_node_modules_vue_loader_lib_selector_type_script_index_0_tab_nav_vue___default.a,
  __vue_template__,
  __vue_template_functional__,
  __vue_styles__,
  __vue_scopeId__,
  __vue_module_identifier__
)

/* harmony default export */ __webpack_exports__["default"] = (Component.exports);


/***/ }),

/***/ 236:
/***/ (function(module, exports, __webpack_require__) {

"use strict";


exports.__esModule = true;

var _tabBar = __webpack_require__(237);

var _tabBar2 = _interopRequireDefault(_tabBar);

var _resizeEvent = __webpack_require__(18);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function noop() {}
var firstUpperCase = function firstUpperCase(str) {
  return str.toLowerCase().replace(/( |^)[a-z]/g, function (L) {
    return L.toUpperCase();
  });
};

exports.default = {
  name: 'TabNav',

  components: {
    TabBar: _tabBar2.default
  },

  inject: ['rootTabs'],

  props: {
    panes: Array,
    currentName: String,
    editable: Boolean,
    onTabClick: {
      type: Function,
      default: noop
    },
    onTabRemove: {
      type: Function,
      default: noop
    },
    type: String,
    stretch: Boolean
  },

  data: function data() {
    return {
      scrollable: false,
      navOffset: 0,
      isFocus: false,
      focusable: true
    };
  },


  computed: {
    navStyle: function navStyle() {
      var dir = ['top', 'bottom'].indexOf(this.rootTabs.tabPosition) !== -1 ? 'X' : 'Y';
      return {
        transform: 'translate' + dir + '(-' + this.navOffset + 'px)'
      };
    },
    sizeName: function sizeName() {
      return ['top', 'bottom'].indexOf(this.rootTabs.tabPosition) !== -1 ? 'width' : 'height';
    }
  },

  methods: {
    scrollPrev: function scrollPrev() {
      var containerSize = this.$refs.navScroll['offset' + firstUpperCase(this.sizeName)];
      var currentOffset = this.navOffset;

      if (!currentOffset) return;

      var newOffset = currentOffset > containerSize ? currentOffset - containerSize : 0;

      this.navOffset = newOffset;
    },
    scrollNext: function scrollNext() {
      var navSize = this.$refs.nav['offset' + firstUpperCase(this.sizeName)];
      var containerSize = this.$refs.navScroll['offset' + firstUpperCase(this.sizeName)];
      var currentOffset = this.navOffset;

      if (navSize - currentOffset <= containerSize) return;

      var newOffset = navSize - currentOffset > containerSize * 2 ? currentOffset + containerSize : navSize - containerSize;

      this.navOffset = newOffset;
    },
    scrollToActiveTab: function scrollToActiveTab() {
      if (!this.scrollable) return;
      var nav = this.$refs.nav;
      var activeTab = this.$el.querySelector('.is-active');
      if (!activeTab) return;
      var navScroll = this.$refs.navScroll;
      var activeTabBounding = activeTab.getBoundingClientRect();
      var navScrollBounding = navScroll.getBoundingClientRect();
      var navBounding = nav.getBoundingClientRect();
      var currentOffset = this.navOffset;
      var newOffset = currentOffset;

      if (activeTabBounding.left < navScrollBounding.left) {
        newOffset = currentOffset - (navScrollBounding.left - activeTabBounding.left);
      }
      if (activeTabBounding.right > navScrollBounding.right) {
        newOffset = currentOffset + activeTabBounding.right - navScrollBounding.right;
      }
      if (navBounding.right < navScrollBounding.right) {
        newOffset = nav.offsetWidth - navScrollBounding.width;
      }
      this.navOffset = Math.max(newOffset, 0);
    },
    update: function update() {
      if (!this.$refs.nav) return;
      var sizeName = this.sizeName;
      var navSize = this.$refs.nav['offset' + firstUpperCase(sizeName)];
      var containerSize = this.$refs.navScroll['offset' + firstUpperCase(sizeName)];
      var currentOffset = this.navOffset;

      if (containerSize < navSize) {
        var _currentOffset = this.navOffset;
        this.scrollable = this.scrollable || {};
        this.scrollable.prev = _currentOffset;
        this.scrollable.next = _currentOffset + containerSize < navSize;
        if (navSize - _currentOffset < containerSize) {
          this.navOffset = navSize - containerSize;
        }
      } else {
        this.scrollable = false;
        if (currentOffset > 0) {
          this.navOffset = 0;
        }
      }
    },
    changeTab: function changeTab(e) {
      var keyCode = e.keyCode;
      var nextIndex = void 0;
      var currentIndex = void 0,
          tabList = void 0;
      if ([37, 38, 39, 40].indexOf(keyCode) !== -1) {
        // 左右上下键更换tab
        tabList = e.currentTarget.querySelectorAll('[role=tab]');
        currentIndex = Array.prototype.indexOf.call(tabList, e.target);
      } else {
        return;
      }
      if (keyCode === 37 || keyCode === 38) {
        // left
        if (currentIndex === 0) {
          // first
          nextIndex = tabList.length - 1;
        } else {
          nextIndex = currentIndex - 1;
        }
      } else {
        // right
        if (currentIndex < tabList.length - 1) {
          // not last
          nextIndex = currentIndex + 1;
        } else {
          nextIndex = 0;
        }
      }
      tabList[nextIndex].focus(); // 改变焦点元素
      tabList[nextIndex].click(); // 选中下一个tab
      this.setFocus();
    },
    setFocus: function setFocus() {
      if (this.focusable) {
        this.isFocus = true;
      }
    },
    removeFocus: function removeFocus() {
      this.isFocus = false;
    },
    visibilityChangeHandler: function visibilityChangeHandler() {
      var _this = this;

      var visibility = document.visibilityState;
      if (visibility === 'hidden') {
        this.focusable = false;
      } else if (visibility === 'visible') {
        setTimeout(function () {
          _this.focusable = true;
        }, 50);
      }
    },
    windowBlurHandler: function windowBlurHandler() {
      this.focusable = false;
    },
    windowFocusHandler: function windowFocusHandler() {
      var _this2 = this;

      setTimeout(function () {
        _this2.focusable = true;
      }, 50);
    }
  },

  updated: function updated() {
    this.update();
  },
  render: function render(h) {
    var _this3 = this;

    var type = this.type,
        panes = this.panes,
        editable = this.editable,
        stretch = this.stretch,
        onTabClick = this.onTabClick,
        onTabRemove = this.onTabRemove,
        navStyle = this.navStyle,
        scrollable = this.scrollable,
        scrollNext = this.scrollNext,
        scrollPrev = this.scrollPrev,
        changeTab = this.changeTab,
        setFocus = this.setFocus,
        removeFocus = this.removeFocus;

    var scrollBtn = scrollable ? [h(
      'span',
      { 'class': ['el-tabs__nav-prev', scrollable.prev ? '' : 'is-disabled'], on: {
          'click': scrollPrev
        }
      },
      [h(
        'i',
        { 'class': 'el-icon-arrow-left' },
        []
      )]
    ), h(
      'span',
      { 'class': ['el-tabs__nav-next', scrollable.next ? '' : 'is-disabled'], on: {
          'click': scrollNext
        }
      },
      [h(
        'i',
        { 'class': 'el-icon-arrow-right' },
        []
      )]
    )] : null;

    var tabs = this._l(panes, function (pane, index) {
      var _ref;

      var tabName = pane.name || pane.index || index;
      var closable = pane.isClosable || editable;

      pane.index = '' + index;

      var btnClose = closable ? h(
        'span',
        { 'class': 'el-icon-close', on: {
            'click': function click(ev) {
              onTabRemove(pane, ev);
            }
          }
        },
        []
      ) : null;

      var tabLabelContent = pane.$slots.label || pane.label;
      var tabindex = pane.active ? 0 : -1;
      return h(
        'div',
        {
          'class': (_ref = {
            'el-tabs__item': true
          }, _ref['is-' + _this3.rootTabs.tabPosition] = true, _ref['is-active'] = pane.active, _ref['is-disabled'] = pane.disabled, _ref['is-closable'] = closable, _ref['is-focus'] = _this3.isFocus, _ref),
          attrs: { id: 'tab-' + tabName,
            'aria-controls': 'pane-' + tabName,
            role: 'tab',
            'aria-selected': pane.active,

            tabindex: tabindex
          },
          ref: 'tabs', refInFor: true,
          on: {
            'focus': function focus() {
              setFocus();
            },
            'blur': function blur() {
              removeFocus();
            },
            'click': function click(ev) {
              removeFocus();onTabClick(pane, tabName, ev);
            },
            'keydown': function keydown(ev) {
              if (closable && (ev.keyCode === 46 || ev.keyCode === 8)) {
                onTabRemove(pane, ev);
              }
            }
          }
        },
        [tabLabelContent, btnClose]
      );
    });
    return h(
      'div',
      { 'class': ['el-tabs__nav-wrap', scrollable ? 'is-scrollable' : '', 'is-' + this.rootTabs.tabPosition] },
      [scrollBtn, h(
        'div',
        { 'class': ['el-tabs__nav-scroll'], ref: 'navScroll' },
        [h(
          'div',
          {
            'class': ['el-tabs__nav', 'is-' + this.rootTabs.tabPosition, stretch && ['top', 'bottom'].indexOf(this.rootTabs.tabPosition) !== -1 ? 'is-stretch' : ''],
            ref: 'nav',
            style: navStyle,
            attrs: { role: 'tablist'
            },
            on: {
              'keydown': changeTab
            }
          },
          [!type ? h(
            'tab-bar',
            {
              attrs: { tabs: panes }
            },
            []
          ) : null, tabs]
        )]
      )]
    );
  },
  mounted: function mounted() {
    (0, _resizeEvent.addResizeListener)(this.$el, this.update);
    document.addEventListener('visibilitychange', this.visibilityChangeHandler);
    window.addEventListener('blur', this.windowBlurHandler);
    window.addEventListener('focus', this.windowFocusHandler);
  },
  beforeDestroy: function beforeDestroy() {
    if (this.$el && this.update) (0, _resizeEvent.removeResizeListener)(this.$el, this.update);
    document.removeEventListener('visibilitychange', this.visibilityChangeHandler);
    window.removeEventListener('blur', this.windowBlurHandler);
    window.removeEventListener('focus', this.windowFocusHandler);
  }
};

/***/ }),

/***/ 237:
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
Object.defineProperty(__webpack_exports__, "__esModule", { value: true });
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__babel_loader_node_modules_vue_loader_lib_selector_type_script_index_0_tab_bar_vue__ = __webpack_require__(238);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__babel_loader_node_modules_vue_loader_lib_selector_type_script_index_0_tab_bar_vue___default = __webpack_require__.n(__WEBPACK_IMPORTED_MODULE_0__babel_loader_node_modules_vue_loader_lib_selector_type_script_index_0_tab_bar_vue__);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__node_modules_vue_loader_lib_template_compiler_index_id_data_v_969dc580_hasScoped_false_preserveWhitespace_false_buble_transforms_node_modules_vue_loader_lib_selector_type_template_index_0_tab_bar_vue__ = __webpack_require__(239);
var normalizeComponent = __webpack_require__(0)
/* script */

/* template */

/* template functional */
  var __vue_template_functional__ = false
/* styles */
var __vue_styles__ = null
/* scopeId */
var __vue_scopeId__ = null
/* moduleIdentifier (server only) */
var __vue_module_identifier__ = null
var Component = normalizeComponent(
  __WEBPACK_IMPORTED_MODULE_0__babel_loader_node_modules_vue_loader_lib_selector_type_script_index_0_tab_bar_vue___default.a,
  __WEBPACK_IMPORTED_MODULE_1__node_modules_vue_loader_lib_template_compiler_index_id_data_v_969dc580_hasScoped_false_preserveWhitespace_false_buble_transforms_node_modules_vue_loader_lib_selector_type_template_index_0_tab_bar_vue__["a" /* default */],
  __vue_template_functional__,
  __vue_styles__,
  __vue_scopeId__,
  __vue_module_identifier__
)

/* harmony default export */ __webpack_exports__["default"] = (Component.exports);


/***/ }),

/***/ 238:
/***/ (function(module, exports, __webpack_require__) {

"use strict";


exports.__esModule = true;
//
//
//

exports.default = {
  name: 'TabBar',

  props: {
    tabs: Array
  },

  inject: ['rootTabs'],

  computed: {
    barStyle: {
      cache: false,
      get: function get() {
        var _this = this;

        if (!this.$parent.$refs.tabs) return {};
        var style = {};
        var offset = 0;
        var tabSize = 0;
        var sizeName = ['top', 'bottom'].indexOf(this.rootTabs.tabPosition) !== -1 ? 'width' : 'height';
        var sizeDir = sizeName === 'width' ? 'x' : 'y';
        var firstUpperCase = function firstUpperCase(str) {
          return str.toLowerCase().replace(/( |^)[a-z]/g, function (L) {
            return L.toUpperCase();
          });
        };
        this.tabs.every(function (tab, index) {
          var $el = _this.$parent.$refs.tabs[index];
          if (!$el) {
            return false;
          }

          if (!tab.active) {
            offset += $el['client' + firstUpperCase(sizeName)];
            return true;
          } else {
            tabSize = $el['client' + firstUpperCase(sizeName)];
            if (sizeName === 'width' && _this.tabs.length > 1) {
              tabSize -= index === 0 || index === _this.tabs.length - 1 ? 20 : 40;
            }
            return false;
          }
        });

        if (sizeName === 'width' && offset !== 0) {
          offset += 20;
        }
        var transform = 'translate' + firstUpperCase(sizeDir) + '(' + offset + 'px)';
        style[sizeName] = tabSize + 'px';
        style.transform = transform;
        style.msTransform = transform;
        style.webkitTransform = transform;

        return style;
      }
    }
  }
};

/***/ }),

/***/ 239:
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
var render = function () {var _vm=this;var _h=_vm.$createElement;var _c=_vm._self._c||_h;return _c('div',{staticClass:"el-tabs__active-bar",class:("is-" + (_vm.rootTabs.tabPosition)),style:(_vm.barStyle)})}
var staticRenderFns = []
var esExports = { render: render, staticRenderFns: staticRenderFns }
/* harmony default export */ __webpack_exports__["a"] = (esExports);

/***/ })

/******/ });