69 lines
1.7 KiB
JavaScript
69 lines
1.7 KiB
JavaScript
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'use strict';
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exports.__esModule = true;
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var _ariaUtils = require('../aria-utils');
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var _ariaUtils2 = _interopRequireDefault(_ariaUtils);
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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var SubMenu = function SubMenu(parent, domNode) {
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this.domNode = domNode;
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this.parent = parent;
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this.subMenuItems = [];
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this.subIndex = 0;
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this.init();
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};
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SubMenu.prototype.init = function () {
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this.subMenuItems = this.domNode.querySelectorAll('li');
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this.addListeners();
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};
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SubMenu.prototype.gotoSubIndex = function (idx) {
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if (idx === this.subMenuItems.length) {
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idx = 0;
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} else if (idx < 0) {
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idx = this.subMenuItems.length - 1;
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}
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this.subMenuItems[idx].focus();
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this.subIndex = idx;
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};
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SubMenu.prototype.addListeners = function () {
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var _this = this;
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var keys = _ariaUtils2.default.keys;
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var parentNode = this.parent.domNode;
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Array.prototype.forEach.call(this.subMenuItems, function (el) {
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el.addEventListener('keydown', function (event) {
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var prevDef = false;
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switch (event.keyCode) {
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case keys.down:
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_this.gotoSubIndex(_this.subIndex + 1);
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prevDef = true;
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break;
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case keys.up:
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_this.gotoSubIndex(_this.subIndex - 1);
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prevDef = true;
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break;
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case keys.tab:
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_ariaUtils2.default.triggerEvent(parentNode, 'mouseleave');
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break;
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case keys.enter:
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case keys.space:
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prevDef = true;
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event.currentTarget.click();
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break;
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}
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if (prevDef) {
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event.preventDefault();
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event.stopPropagation();
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}
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return false;
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});
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});
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};
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exports.default = SubMenu;
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