element-ui/lib/menu.js

module.exports =
/******/ (function(modules) { // webpackBootstrap
/******/ 	// The module cache
/******/ 	var installedModules = {};
/******/
/******/ 	// The require function
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/******/ 			i: moduleId,
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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
  }
}


/***/ }),

/***/ 1:
/***/ (function(module, exports) {

module.exports = require("element-ui/lib/mixins/emitter");

/***/ }),

/***/ 3:
/***/ (function(module, exports) {

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

/***/ }),

/***/ 47:
/***/ (function(module, exports, __webpack_require__) {

"use strict";


exports.__esModule = true;
var aria = aria || {};

aria.Utils = aria.Utils || {};

/**
 * @desc Set focus on descendant nodes until the first focusable element is
 *       found.
 * @param element
 *          DOM node for which to find the first focusable descendant.
 * @returns
 *  true if a focusable element is found and focus is set.
 */
aria.Utils.focusFirstDescendant = function (element) {
  for (var i = 0; i < element.childNodes.length; i++) {
    var child = element.childNodes[i];
    if (aria.Utils.attemptFocus(child) || aria.Utils.focusFirstDescendant(child)) {
      return true;
    }
  }
  return false;
};

/**
 * @desc Find the last descendant node that is focusable.
 * @param element
 *          DOM node for which to find the last focusable descendant.
 * @returns
 *  true if a focusable element is found and focus is set.
 */

aria.Utils.focusLastDescendant = function (element) {
  for (var i = element.childNodes.length - 1; i >= 0; i--) {
    var child = element.childNodes[i];
    if (aria.Utils.attemptFocus(child) || aria.Utils.focusLastDescendant(child)) {
      return true;
    }
  }
  return false;
};

/**
 * @desc Set Attempt to set focus on the current node.
 * @param element
 *          The node to attempt to focus on.
 * @returns
 *  true if element is focused.
 */
aria.Utils.attemptFocus = function (element) {
  if (!aria.Utils.isFocusable(element)) {
    return false;
  }
  aria.Utils.IgnoreUtilFocusChanges = true;
  try {
    element.focus();
  } catch (e) {}
  aria.Utils.IgnoreUtilFocusChanges = false;
  return document.activeElement === element;
};

aria.Utils.isFocusable = function (element) {
  if (element.tabIndex > 0 || element.tabIndex === 0 && element.getAttribute('tabIndex') !== null) {
    return true;
  }

  if (element.disabled) {
    return false;
  }

  switch (element.nodeName) {
    case 'A':
      return !!element.href && element.rel !== 'ignore';
    case 'INPUT':
      return element.type !== 'hidden' && element.type !== 'file';
    case 'BUTTON':
    case 'SELECT':
    case 'TEXTAREA':
      return true;
    default:
      return false;
  }
};

/**
 * 触发一个事件
 * mouseenter, mouseleave, mouseover, keyup, change, click 等
 * @param  {Element} elm
 * @param  {String} name
 * @param  {*} opts
 */
aria.Utils.triggerEvent = function (elm, name) {
  var eventName = void 0;

  if (/^mouse|click/.test(name)) {
    eventName = 'MouseEvents';
  } else if (/^key/.test(name)) {
    eventName = 'KeyboardEvent';
  } else {
    eventName = 'HTMLEvents';
  }
  var evt = document.createEvent(eventName);

  for (var _len = arguments.length, opts = Array(_len > 2 ? _len - 2 : 0), _key = 2; _key < _len; _key++) {
    opts[_key - 2] = arguments[_key];
  }

  evt.initEvent.apply(evt, [name].concat(opts));
  elm.dispatchEvent ? elm.dispatchEvent(evt) : elm.fireEvent('on' + name, evt);

  return elm;
};

aria.Utils.keys = {
  tab: 9,
  enter: 13,
  space: 32,
  left: 37,
  up: 38,
  right: 39,
  down: 40
};

exports.default = aria.Utils;

/***/ }),

/***/ 8:
/***/ (function(module, exports) {

module.exports = require("element-ui/lib/mixins/migrating");

/***/ }),

/***/ 84:
/***/ (function(module, exports, __webpack_require__) {

"use strict";


exports.__esModule = true;

var _menu = __webpack_require__(85);

var _menu2 = _interopRequireDefault(_menu);

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

/* istanbul ignore next */
_menu2.default.install = function (Vue) {
  Vue.component(_menu2.default.name, _menu2.default);
};

exports.default = _menu2.default;

/***/ }),

/***/ 85:
/***/ (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_menu_vue__ = __webpack_require__(86);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__babel_loader_node_modules_vue_loader_lib_selector_type_script_index_0_menu_vue___default = __webpack_require__.n(__WEBPACK_IMPORTED_MODULE_0__babel_loader_node_modules_vue_loader_lib_selector_type_script_index_0_menu_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_menu_vue___default.a,
  __vue_template__,
  __vue_template_functional__,
  __vue_styles__,
  __vue_scopeId__,
  __vue_module_identifier__
)

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


/***/ }),

/***/ 86:
/***/ (function(module, exports, __webpack_require__) {

"use strict";


exports.__esModule = true;

var _emitter = __webpack_require__(1);

var _emitter2 = _interopRequireDefault(_emitter);

var _migrating = __webpack_require__(8);

var _migrating2 = _interopRequireDefault(_migrating);

var _ariaMenubar = __webpack_require__(87);

var _ariaMenubar2 = _interopRequireDefault(_ariaMenubar);

var _dom = __webpack_require__(3);

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

exports.default = {
  name: 'ElMenu',

  render: function render(h) {
    var component = h(
      'ul',
      {
        attrs: {
          role: 'menubar'
        },
        key: +this.collapse,
        style: { backgroundColor: this.backgroundColor || '' },
        'class': {
          'el-menu--horizontal': this.mode === 'horizontal',
          'el-menu--collapse': this.collapse,
          "el-menu": true
        }
      },
      [this.$slots.default]
    );

    if (this.collapseTransition) {
      return h(
        'el-menu-collapse-transition',
        null,
        [component]
      );
    } else {
      return component;
    }
  },


  componentName: 'ElMenu',

  mixins: [_emitter2.default, _migrating2.default],

  provide: function provide() {
    return {
      rootMenu: this
    };
  },


  components: {
    'el-menu-collapse-transition': {
      functional: true,
      render: function render(createElement, context) {
        var data = {
          props: {
            mode: 'out-in'
          },
          on: {
            beforeEnter: function beforeEnter(el) {
              el.style.opacity = 0.2;
            },
            enter: function enter(el) {
              (0, _dom.addClass)(el, 'el-opacity-transition');
              el.style.opacity = 1;
            },
            afterEnter: function afterEnter(el) {
              (0, _dom.removeClass)(el, 'el-opacity-transition');
              el.style.opacity = '';
            },
            beforeLeave: function beforeLeave(el) {
              if (!el.dataset) el.dataset = {};

              if ((0, _dom.hasClass)(el, 'el-menu--collapse')) {
                (0, _dom.removeClass)(el, 'el-menu--collapse');
                el.dataset.oldOverflow = el.style.overflow;
                el.dataset.scrollWidth = el.clientWidth;
                (0, _dom.addClass)(el, 'el-menu--collapse');
              } else {
                (0, _dom.addClass)(el, 'el-menu--collapse');
                el.dataset.oldOverflow = el.style.overflow;
                el.dataset.scrollWidth = el.clientWidth;
                (0, _dom.removeClass)(el, 'el-menu--collapse');
              }

              el.style.width = el.scrollWidth + 'px';
              el.style.overflow = 'hidden';
            },
            leave: function leave(el) {
              (0, _dom.addClass)(el, 'horizontal-collapse-transition');
              el.style.width = el.dataset.scrollWidth + 'px';
            }
          }
        };
        return createElement('transition', data, context.children);
      }
    }
  },

  props: {
    mode: {
      type: String,
      default: 'vertical'
    },
    defaultActive: {
      type: String,
      default: ''
    },
    defaultOpeneds: Array,
    uniqueOpened: Boolean,
    router: Boolean,
    menuTrigger: {
      type: String,
      default: 'hover'
    },
    collapse: Boolean,
    backgroundColor: String,
    textColor: String,
    activeTextColor: String,
    collapseTransition: {
      type: Boolean,
      default: true
    }
  },
  data: function data() {
    return {
      activeIndex: this.defaultActive,
      openedMenus: this.defaultOpeneds && !this.collapse ? this.defaultOpeneds.slice(0) : [],
      items: {},
      submenus: {}
    };
  },

  computed: {
    hoverBackground: function hoverBackground() {
      return this.backgroundColor ? this.mixColor(this.backgroundColor, 0.2) : '';
    },
    isMenuPopup: function isMenuPopup() {
      return this.mode === 'horizontal' || this.mode === 'vertical' && this.collapse;
    }
  },
  watch: {
    defaultActive: 'updateActiveIndex',

    defaultOpeneds: function defaultOpeneds(value) {
      if (!this.collapse) {
        this.openedMenus = value;
      }
    },
    collapse: function collapse(value) {
      if (value) this.openedMenus = [];
      this.broadcast('ElSubmenu', 'toggle-collapse', value);
    }
  },
  methods: {
    updateActiveIndex: function updateActiveIndex(val) {
      var item = this.items[val] || this.items[this.activeIndex] || this.items[this.defaultActive];
      if (item) {
        this.activeIndex = item.index;
        this.initOpenedMenu();
      } else {
        this.activeIndex = null;
      }
    },
    getMigratingConfig: function getMigratingConfig() {
      return {
        props: {
          'theme': 'theme is removed.'
        }
      };
    },
    getColorChannels: function getColorChannels(color) {
      color = color.replace('#', '');
      if (/^[0-9a-fA-F]{3}$/.test(color)) {
        color = color.split('');
        for (var i = 2; i >= 0; i--) {
          color.splice(i, 0, color[i]);
        }
        color = color.join('');
      }
      if (/^[0-9a-fA-F]{6}$/.test(color)) {
        return {
          red: parseInt(color.slice(0, 2), 16),
          green: parseInt(color.slice(2, 4), 16),
          blue: parseInt(color.slice(4, 6), 16)
        };
      } else {
        return {
          red: 255,
          green: 255,
          blue: 255
        };
      }
    },
    mixColor: function mixColor(color, percent) {
      var _getColorChannels = this.getColorChannels(color),
          red = _getColorChannels.red,
          green = _getColorChannels.green,
          blue = _getColorChannels.blue;

      if (percent > 0) {
        // shade given color
        red *= 1 - percent;
        green *= 1 - percent;
        blue *= 1 - percent;
      } else {
        // tint given color
        red += (255 - red) * percent;
        green += (255 - green) * percent;
        blue += (255 - blue) * percent;
      }
      return 'rgb(' + Math.round(red) + ', ' + Math.round(green) + ', ' + Math.round(blue) + ')';
    },
    addItem: function addItem(item) {
      this.$set(this.items, item.index, item);
    },
    removeItem: function removeItem(item) {
      delete this.items[item.index];
    },
    addSubmenu: function addSubmenu(item) {
      this.$set(this.submenus, item.index, item);
    },
    removeSubmenu: function removeSubmenu(item) {
      delete this.submenus[item.index];
    },
    openMenu: function openMenu(index, indexPath) {
      var openedMenus = this.openedMenus;
      if (openedMenus.indexOf(index) !== -1) return;
      // 将不在该菜单路径下的其余菜单收起
      // collapse all menu that are not under current menu item
      if (this.uniqueOpened) {
        this.openedMenus = openedMenus.filter(function (index) {
          return indexPath.indexOf(index) !== -1;
        });
      }
      this.openedMenus.push(index);
    },
    closeMenu: function closeMenu(index) {
      var i = this.openedMenus.indexOf(index);
      if (i !== -1) {
        this.openedMenus.splice(i, 1);
      }
    },
    handleSubmenuClick: function handleSubmenuClick(submenu) {
      var index = submenu.index,
          indexPath = submenu.indexPath;

      var isOpened = this.openedMenus.indexOf(index) !== -1;

      if (isOpened) {
        this.closeMenu(index);
        this.$emit('close', index, indexPath);
      } else {
        this.openMenu(index, indexPath);
        this.$emit('open', index, indexPath);
      }
    },
    handleItemClick: function handleItemClick(item) {
      var _this = this;

      var index = item.index,
          indexPath = item.indexPath;

      var oldActiveIndex = this.activeIndex;

      this.activeIndex = item.index;
      this.$emit('select', index, indexPath, item);

      if (this.mode === 'horizontal' || this.collapse) {
        this.openedMenus = [];
      }

      if (this.router) {
        this.routeToItem(item, function (error) {
          _this.activeIndex = oldActiveIndex;
          if (error) console.error(error);
        });
      }
    },

    // 初始化展开菜单
    // initialize opened menu
    initOpenedMenu: function initOpenedMenu() {
      var _this2 = this;

      var index = this.activeIndex;
      var activeItem = this.items[index];
      if (!activeItem || this.mode === 'horizontal' || this.collapse) return;

      var indexPath = activeItem.indexPath;

      // 展开该菜单项的路径上所有子菜单
      // expand all submenus of the menu item
      indexPath.forEach(function (index) {
        var submenu = _this2.submenus[index];
        submenu && _this2.openMenu(index, submenu.indexPath);
      });
    },
    routeToItem: function routeToItem(item, onError) {
      var route = item.route || item.index;
      try {
        this.$router.push(route, function () {}, onError);
      } catch (e) {
        console.error(e);
      }
    },
    open: function open(index) {
      var _this3 = this;

      var indexPath = this.submenus[index.toString()].indexPath;

      indexPath.forEach(function (i) {
        return _this3.openMenu(i, indexPath);
      });
    },
    close: function close(index) {
      this.closeMenu(index);
    }
  },
  mounted: function mounted() {
    this.initOpenedMenu();
    this.$on('item-click', this.handleItemClick);
    this.$on('submenu-click', this.handleSubmenuClick);
    if (this.mode === 'horizontal') {
      new _ariaMenubar2.default(this.$el); // eslint-disable-line
    }
    this.$watch('items', this.updateActiveIndex);
  }
};

/***/ }),

/***/ 87:
/***/ (function(module, exports, __webpack_require__) {

"use strict";


exports.__esModule = true;

var _ariaMenuitem = __webpack_require__(88);

var _ariaMenuitem2 = _interopRequireDefault(_ariaMenuitem);

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

var Menu = function Menu(domNode) {
  this.domNode = domNode;
  this.init();
};

Menu.prototype.init = function () {
  var menuChildren = this.domNode.childNodes;
  [].filter.call(menuChildren, function (child) {
    return child.nodeType === 1;
  }).forEach(function (child) {
    new _ariaMenuitem2.default(child); // eslint-disable-line
  });
};
exports.default = Menu;

/***/ }),

/***/ 88:
/***/ (function(module, exports, __webpack_require__) {

"use strict";


exports.__esModule = true;

var _ariaUtils = __webpack_require__(47);

var _ariaUtils2 = _interopRequireDefault(_ariaUtils);

var _ariaSubmenu = __webpack_require__(89);

var _ariaSubmenu2 = _interopRequireDefault(_ariaSubmenu);

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

var MenuItem = function MenuItem(domNode) {
  this.domNode = domNode;
  this.submenu = null;
  this.init();
};

MenuItem.prototype.init = function () {
  this.domNode.setAttribute('tabindex', '0');
  var menuChild = this.domNode.querySelector('.el-menu');
  if (menuChild) {
    this.submenu = new _ariaSubmenu2.default(this, menuChild);
  }
  this.addListeners();
};

MenuItem.prototype.addListeners = function () {
  var _this = this;

  var keys = _ariaUtils2.default.keys;
  this.domNode.addEventListener('keydown', function (event) {
    var prevDef = false;
    switch (event.keyCode) {
      case keys.down:
        _ariaUtils2.default.triggerEvent(event.currentTarget, 'mouseenter');
        _this.submenu && _this.submenu.gotoSubIndex(0);
        prevDef = true;
        break;
      case keys.up:
        _ariaUtils2.default.triggerEvent(event.currentTarget, 'mouseenter');
        _this.submenu && _this.submenu.gotoSubIndex(_this.submenu.subMenuItems.length - 1);
        prevDef = true;
        break;
      case keys.tab:
        _ariaUtils2.default.triggerEvent(event.currentTarget, 'mouseleave');
        break;
      case keys.enter:
      case keys.space:
        prevDef = true;
        event.currentTarget.click();
        break;
    }
    if (prevDef) {
      event.preventDefault();
    }
  });
};

exports.default = MenuItem;

/***/ }),

/***/ 89:
/***/ (function(module, exports, __webpack_require__) {

"use strict";


exports.__esModule = true;

var _ariaUtils = __webpack_require__(47);

var _ariaUtils2 = _interopRequireDefault(_ariaUtils);

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

var SubMenu = function SubMenu(parent, domNode) {
  this.domNode = domNode;
  this.parent = parent;
  this.subMenuItems = [];
  this.subIndex = 0;
  this.init();
};

SubMenu.prototype.init = function () {
  this.subMenuItems = this.domNode.querySelectorAll('li');
  this.addListeners();
};

SubMenu.prototype.gotoSubIndex = function (idx) {
  if (idx === this.subMenuItems.length) {
    idx = 0;
  } else if (idx < 0) {
    idx = this.subMenuItems.length - 1;
  }
  this.subMenuItems[idx].focus();
  this.subIndex = idx;
};

SubMenu.prototype.addListeners = function () {
  var _this = this;

  var keys = _ariaUtils2.default.keys;
  var parentNode = this.parent.domNode;
  Array.prototype.forEach.call(this.subMenuItems, function (el) {
    el.addEventListener('keydown', function (event) {
      var prevDef = false;
      switch (event.keyCode) {
        case keys.down:
          _this.gotoSubIndex(_this.subIndex + 1);
          prevDef = true;
          break;
        case keys.up:
          _this.gotoSubIndex(_this.subIndex - 1);
          prevDef = true;
          break;
        case keys.tab:
          _ariaUtils2.default.triggerEvent(parentNode, 'mouseleave');
          break;
        case keys.enter:
        case keys.space:
          prevDef = true;
          event.currentTarget.click();
          break;
      }
      if (prevDef) {
        event.preventDefault();
        event.stopPropagation();
      }
      return false;
    });
  });
};

exports.default = SubMenu;

/***/ })

/******/ });