2a09d1a4
 liuqimichale
添加宜春 天水 宣化
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'use strict';
exports.__esModule = true;
var _ariaUtils = require('../aria-utils');
var _ariaUtils2 = _interopRequireDefault(_ariaUtils);
var _ariaSubmenu = require('./aria-submenu');
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;
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