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72 lines
2.6 KiB
72 lines
2.6 KiB
// 通过绑定输入框的 class 来实现enter 代替 tab 的功能
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/*
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示例：
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import { getKeyUp } from '../../utlis/getKeyUp'
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created() {
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getKeyUp('enterToTab')
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}
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*/
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export function getKeyDown(className){
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//当前页面监视键盘输入 onkeyup /onkeydown
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document.onkeydown = function(e) {
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//e.keyCode === 13
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if(e.key == 'Enter'){
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// 阻止文本框的换行
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if(window.event){
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window.event.returnValue = false;
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}else{
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e.preventDefault(); //for firefox
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}
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// 标记当前组件为true
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if(e.target.tagName === 'INPUT'){
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e.target.autofocus = true;
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}else if(e.target.tagName === 'TEXTAREA'){
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e.target.autofocus = true;
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}else{
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e.target.firstChild.autofocus = true;
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}
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// 获取所有需要定位的组件
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let arr = document.querySelectorAll("."+className);
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let index2 = -1;
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arr.forEach((i,index) => {
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if(i.querySelectorAll("input")[0]){
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if(i.querySelectorAll("input")[0].autofocus){
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index2 = index;
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}
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}else if(i.querySelectorAll("textarea")[0]){
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if(i.querySelectorAll("textarea")[0].autofocus){
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index2 = index;
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}
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}else{
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// 暂无其他
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}
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})
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// 超出返回第一个组件
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if(index2 + 1 >= arr.length){
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index2 = -1;
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}
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// 聚焦到下一个组件中
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if(arr[index2 + 1].querySelectorAll("input")[0]){
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if(arr[index2 + 1].querySelectorAll("input")[0].type === 'hidden'){
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arr[index2 + 1].querySelectorAll("input")[0].parentElement.focus();
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}else{
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arr[index2 + 1].querySelectorAll("input")[0].focus();
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}
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}else if(arr[index2 + 1].querySelectorAll("textarea")[0]){
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arr[index2 + 1].querySelectorAll("textarea")[0].focus();
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}else{
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// 暂无其他
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}
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// 重置当前组件为false
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if(e.target.tagName === 'INPUT'){
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e.target.autofocus = false;
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}else if(e.target.tagName === 'TEXTAREA'){
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e.target.autofocus = false;
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}else{
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e.target.firstChild.autofocus = false;
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}
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}
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}
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}
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