dropdown.js

module.exports =
/******/ (function(modules) { // webpackBootstrap
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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");

/***/ }),

/***/ 10:
/***/ (function(module, exports) {

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

/***/ }),

/***/ 15:
/***/ (function(module, exports) {

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

/***/ }),

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

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

/***/ }),

/***/ 72:
/***/ (function(module, exports, __webpack_require__) {

"use strict";


exports.__esModule = true;

var _dropdown = __webpack_require__(73);

var _dropdown2 = _interopRequireDefault(_dropdown);

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

/* istanbul ignore next */
_dropdown2.default.install = function (Vue) {
  Vue.component(_dropdown2.default.name, _dropdown2.default);
};

exports.default = _dropdown2.default;

/***/ }),

/***/ 73:
/***/ (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_dropdown_vue__ = __webpack_require__(74);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__babel_loader_node_modules_vue_loader_lib_selector_type_script_index_0_dropdown_vue___default = __webpack_require__.n(__WEBPACK_IMPORTED_MODULE_0__babel_loader_node_modules_vue_loader_lib_selector_type_script_index_0_dropdown_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_dropdown_vue___default.a,
  __vue_template__,
  __vue_template_functional__,
  __vue_styles__,
  __vue_scopeId__,
  __vue_module_identifier__
)

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


/***/ }),

/***/ 74:
/***/ (function(module, exports, __webpack_require__) {

"use strict";


exports.__esModule = true;

var _clickoutside = __webpack_require__(10);

var _clickoutside2 = _interopRequireDefault(_clickoutside);

var _emitter = __webpack_require__(1);

var _emitter2 = _interopRequireDefault(_emitter);

var _migrating = __webpack_require__(8);

var _migrating2 = _interopRequireDefault(_migrating);

var _button = __webpack_require__(15);

var _button2 = _interopRequireDefault(_button);

var _buttonGroup = __webpack_require__(75);

var _buttonGroup2 = _interopRequireDefault(_buttonGroup);

var _util = __webpack_require__(3);

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

exports.default = {
  name: 'ElDropdown',

  componentName: 'ElDropdown',

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

  directives: { Clickoutside: _clickoutside2.default },

  components: {
    ElButton: _button2.default,
    ElButtonGroup: _buttonGroup2.default
  },

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


  props: {
    trigger: {
      type: String,
      default: 'hover'
    },
    type: String,
    size: {
      type: String,
      default: ''
    },
    splitButton: Boolean,
    hideOnClick: {
      type: Boolean,
      default: true
    },
    placement: {
      type: String,
      default: 'bottom-end'
    },
    visibleArrow: {
      default: true
    },
    showTimeout: {
      type: Number,
      default: 250
    },
    hideTimeout: {
      type: Number,
      default: 150
    }
  },

  data: function data() {
    return {
      timeout: null,
      visible: false,
      triggerElm: null,
      menuItems: null,
      menuItemsArray: null,
      dropdownElm: null,
      focusing: false,
      listId: 'dropdown-menu-' + (0, _util.generateId)()
    };
  },


  computed: {
    dropdownSize: function dropdownSize() {
      return this.size || (this.$ELEMENT || {}).size;
    }
  },

  mounted: function mounted() {
    this.$on('menu-item-click', this.handleMenuItemClick);
    this.initEvent();
    this.initAria();
  },


  watch: {
    visible: function visible(val) {
      this.broadcast('ElDropdownMenu', 'visible', val);
      this.$emit('visible-change', val);
    },
    focusing: function focusing(val) {
      var selfDefine = this.$el.querySelector('.el-dropdown-selfdefine');
      if (selfDefine) {
        // 自定义
        if (val) {
          selfDefine.className += ' focusing';
        } else {
          selfDefine.className = selfDefine.className.replace('focusing', '');
        }
      }
    }
  },

  methods: {
    getMigratingConfig: function getMigratingConfig() {
      return {
        props: {
          'menu-align': 'menu-align is renamed to placement.'
        }
      };
    },
    show: function show() {
      var _this = this;

      if (this.triggerElm.disabled) return;
      clearTimeout(this.timeout);
      this.timeout = setTimeout(function () {
        _this.visible = true;
      }, this.trigger === 'click' ? 0 : this.showTimeout);
    },
    hide: function hide() {
      var _this2 = this;

      if (this.triggerElm.disabled) return;
      this.removeTabindex();
      this.resetTabindex(this.triggerElm);
      clearTimeout(this.timeout);
      this.timeout = setTimeout(function () {
        _this2.visible = false;
      }, this.trigger === 'click' ? 0 : this.hideTimeout);
    },
    handleClick: function handleClick() {
      if (this.triggerElm.disabled) return;
      if (this.visible) {
        this.hide();
      } else {
        this.show();
      }
    },
    handleTriggerKeyDown: function handleTriggerKeyDown(ev) {
      var keyCode = ev.keyCode;
      if ([38, 40].indexOf(keyCode) > -1) {
        // up/down
        this.removeTabindex();
        this.resetTabindex(this.menuItems[0]);
        this.menuItems[0].focus();
        ev.preventDefault();
        ev.stopPropagation();
      } else if (keyCode === 13) {
        // space enter选中
        this.handleClick();
      } else if ([9, 27].indexOf(keyCode) > -1) {
        // tab || esc
        this.hide();
      }
      return;
    },
    handleItemKeyDown: function handleItemKeyDown(ev) {
      var keyCode = ev.keyCode;
      var target = ev.target;
      var currentIndex = this.menuItemsArray.indexOf(target);
      var max = this.menuItemsArray.length - 1;
      var nextIndex = void 0;
      if ([38, 40].indexOf(keyCode) > -1) {
        // up/down
        if (keyCode === 38) {
          // up
          nextIndex = currentIndex !== 0 ? currentIndex - 1 : 0;
        } else {
          // down
          nextIndex = currentIndex < max ? currentIndex + 1 : max;
        }
        this.removeTabindex();
        this.resetTabindex(this.menuItems[nextIndex]);
        this.menuItems[nextIndex].focus();
        ev.preventDefault();
        ev.stopPropagation();
      } else if (keyCode === 13) {
        // enter选中
        this.triggerElm.focus();
        target.click();
        if (this.hideOnClick) {
          // click关闭
          this.visible = false;
        }
      } else if ([9, 27].indexOf(keyCode) > -1) {
        // tab // esc
        this.hide();
        this.triggerElm.focus();
      }
      return;
    },
    resetTabindex: function resetTabindex(ele) {
      // 下次tab时组件聚焦元素
      this.removeTabindex();
      ele.setAttribute('tabindex', '0'); // 下次期望的聚焦元素
    },
    removeTabindex: function removeTabindex() {
      this.triggerElm.setAttribute('tabindex', '-1');
      this.menuItemsArray.forEach(function (item) {
        item.setAttribute('tabindex', '-1');
      });
    },
    initAria: function initAria() {
      this.dropdownElm.setAttribute('id', this.listId);
      this.triggerElm.setAttribute('aria-haspopup', 'list');
      this.triggerElm.setAttribute('aria-controls', this.listId);
      this.menuItems = this.dropdownElm.querySelectorAll("[tabindex='-1']");
      this.menuItemsArray = Array.prototype.slice.call(this.menuItems);

      if (!this.splitButton) {
        // 自定义
        this.triggerElm.setAttribute('role', 'button');
        this.triggerElm.setAttribute('tabindex', '0');
        this.triggerElm.setAttribute('class', (this.triggerElm.getAttribute('class') || '') + ' el-dropdown-selfdefine'); // 控制
      }
    },
    initEvent: function initEvent() {
      var _this3 = this;

      var trigger = this.trigger,
          show = this.show,
          hide = this.hide,
          handleClick = this.handleClick,
          splitButton = this.splitButton,
          handleTriggerKeyDown = this.handleTriggerKeyDown,
          handleItemKeyDown = this.handleItemKeyDown;

      this.triggerElm = splitButton ? this.$refs.trigger.$el : this.$slots.default[0].elm;

      var dropdownElm = this.dropdownElm = this.$slots.dropdown[0].elm;

      this.triggerElm.addEventListener('keydown', handleTriggerKeyDown); // triggerElm keydown
      dropdownElm.addEventListener('keydown', handleItemKeyDown, true); // item keydown
      // 控制自定义元素的样式
      if (!splitButton) {
        this.triggerElm.addEventListener('focus', function () {
          _this3.focusing = true;
        });
        this.triggerElm.addEventListener('blur', function () {
          _this3.focusing = false;
        });
        this.triggerElm.addEventListener('click', function () {
          _this3.focusing = false;
        });
      }
      if (trigger === 'hover') {
        this.triggerElm.addEventListener('mouseenter', show);
        this.triggerElm.addEventListener('mouseleave', hide);
        dropdownElm.addEventListener('mouseenter', show);
        dropdownElm.addEventListener('mouseleave', hide);
      } else if (trigger === 'click') {
        this.triggerElm.addEventListener('click', handleClick);
      }
    },
    handleMenuItemClick: function handleMenuItemClick(command, instance) {
      if (this.hideOnClick) {
        this.visible = false;
      }
      this.$emit('command', command, instance);
    },
    focus: function focus() {
      this.triggerElm.focus && this.triggerElm.focus();
    }
  },

  render: function render(h) {
    var _this4 = this;

    var hide = this.hide,
        splitButton = this.splitButton,
        type = this.type,
        dropdownSize = this.dropdownSize;


    var handleMainButtonClick = function handleMainButtonClick(event) {
      _this4.$emit('click', event);
      hide();
    };

    var triggerElm = !splitButton ? this.$slots.default : h(
      'el-button-group',
      null,
      [h(
        'el-button',
        {
          attrs: { type: type, size: dropdownSize },
          nativeOn: {
            'click': handleMainButtonClick
          }
        },
        [this.$slots.default]
      ), h(
        'el-button',
        { ref: 'trigger', attrs: { type: type, size: dropdownSize },
          'class': 'el-dropdown__caret-button' },
        [h(
          'i',
          { 'class': 'el-dropdown__icon el-icon-arrow-down' },
          []
        )]
      )]
    );

    return h(
      'div',
      { 'class': 'el-dropdown', directives: [{
          name: 'clickoutside',
          value: hide
        }]
      },
      [triggerElm, this.$slots.dropdown]
    );
  }
};

/***/ }),

/***/ 75:
/***/ (function(module, exports) {

module.exports = require("element-ui/lib/button-group");

/***/ }),

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

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

/***/ })

/******/ });