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禁止后退键（Backspace）

pull/329/head
RuoYi 2021-09-14 17:07:38 +08:00
parent 17afe54f6f
commit 7187161621
1 changed files with 32 additions and 0 deletions
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32
ruoyi-admin/src/main/resources/static/ruoyi/js/common.js
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@ -490,6 +490,38 @@ function loadJs(file, headElem) {
else document.getElementsByTagName('head')[0].appendChild(script);
}
// 禁止后退键（Backspace）
window.onload = function() {
document.getElementsByTagName("body")[0].onkeydown = function() {
// 获取事件对象
var elem = event.relatedTarget || event.srcElement || event.target || event.currentTarget;
// 判断按键为backSpace键
if (event.keyCode == 8) {
// 判断是否需要阻止按下键盘的事件默认传递
var name = elem.nodeName;
if (name != 'INPUT' && name != 'TEXTAREA') {
return _stopIt(event);
}
var type_e = elem.type.toUpperCase();
if (name == 'INPUT' && (type_e != 'TEXT' && type_e != 'TEXTAREA' && type_e != 'PASSWORD' && type_e != 'FILE')) {
return _stopIt(event);
}
if (name == 'INPUT' && (elem.readOnly == true || elem.disabled == true)) {
return _stopIt(event);
}
}
};
};
function _stopIt(e) {
if (e.returnValue) {
e.returnValue = false;
}
if (e.preventDefault) {
e.preventDefault();
}
return false;
}
/** 设置全局ajax处理 */
$.ajaxSetup({
complete: function(XMLHttpRequest, textStatus) {