element-plus
Version:
> TODO: description
63 lines (62 loc) • 2.03 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const aria_1 = require("../aria");
class SubMenu {
constructor(parent, domNode) {
this.parent = parent;
this.domNode = domNode;
this.subIndex = 0;
this.subIndex = 0;
this.init();
}
init() {
this.subMenuItems = this.domNode.querySelectorAll('li');
this.addListeners();
}
gotoSubIndex(idx) {
if (idx === this.subMenuItems.length) {
idx = 0;
}
else if (idx < 0) {
idx = this.subMenuItems.length - 1;
}
this.subMenuItems[idx].focus();
this.subIndex = idx;
}
addListeners() {
const parentNode = this.parent.domNode;
Array.prototype.forEach.call(this.subMenuItems, (el) => {
el.addEventListener('keydown', (event) => {
let prevDef = false;
switch (event.code) {
case aria_1.EVENT_CODE.down: {
this.gotoSubIndex(this.subIndex + 1);
prevDef = true;
break;
}
case aria_1.EVENT_CODE.up: {
this.gotoSubIndex(this.subIndex - 1);
prevDef = true;
break;
}
case aria_1.EVENT_CODE.tab: {
aria_1.triggerEvent(parentNode, 'mouseleave');
break;
}
case aria_1.EVENT_CODE.enter:
case aria_1.EVENT_CODE.space: {
prevDef = true;
event.currentTarget.click();
break;
}
}
if (prevDef) {
event.preventDefault();
event.stopPropagation();
}
return false;
});
});
}
}
exports.default = SubMenu;