如何解决开发页面,如果我们关闭选项卡,则应保存关闭时间
<script>
window.onbeforeunload = function (e) {
return "Please click 'Stay on this Page' and we will give you candy";
};
</script>
我将它添加到 index.html(reactjs) 文件中,因此当单击关闭窗口或选项卡时, 它显示“你想离开”的警告标志,我需要在关闭标签时节省时间。
我找不到保存浏览器/标签页关闭时间的方法。 请告诉我可能的解决方案。
import React,{ Component } from 'react';
//deleted imports to decrease code length
class PrivilegeReport extends Component {
constructor(props) {
super();
this.state = {
loaded: true
};
}
handleWindowClose(){
alert("Alerted browser Close");
}
componentDidMount() {
document.title = "Lims - Privilege Report ";
window.addEventListener("beforeunload",(ev) =>
{
ev.preventDefault();
return ev.returnValue = 'Are you sure you want to close?';
});
console.log("beforeunload")
}
componentwillUnmount() {
window.removeEventListener('onbeforeunload',this.handleWindowClose);
console.log("onbeforeunload")
}
render() {
!this.state.loaded ? startLoading() : stopLoading();
return (
this.state.loaded && <div>
<Header />
<Sidebar context="Priviledge Report" />
<main>
<div className="container">
<Breadcrumb {...{ context: 'REPORTS',leaf: 'Privilege Report' }} />
<div className="columns is-mobile">
<div className="column"><h1 className="title">Privilege Report</h1></div>
<div className="buttons">
<button className="button is-primary" onClick={e => { console.log("TBD...."); }}>Print</button>
<button className="button is-primary" onClick={e => { console.log("TBD...."); }}>Download</button>
</div>
</div>
<div className="columns">
<div className="column">
<Tabs>
<TabList>
<Tab><div className="tab-title">User to User Type Mappping</div></Tab>
<Tab><div className="tab-title">User Type to Policy Mapping</div></Tab>
</TabList>
<TabPanel><Grid status="UTU" /></TabPanel>
<TabPanel><Grid status="UTP" /></TabPanel>
</Tabs>
</div>
</div>
</div>
</main>
</div>
)
}
}
const mapStatetoProps = state => ({
me: state.me
});
const mapdispatchToProps = dispatch => {
return {
//updateMe: data => dispatch(updateMe(data))
};
}
export default connect(
mapStatetoProps,mapdispatchToProps
)(withRouter(PrivilegeReport));
我在 onbeforeunload 和 onunload 上使用了事件监听器,但由于我是初学者,所以无法完全理解。
解决方法
您可以检查浏览器事件并使用窗口事件侦听器跟踪它们。 类似的东西:
window.addEventListener('beforeunload',function (e) {
e.preventDefault();
e.returnValue = "Please click 'Stay on this Page' and we will give you candy";
alert("Please click 'Stay on this Page' and we will give you candy")
//you can display you message here aslo can log time with new Date() to fetch system date and time.
});
有关在标签上处理浏览器活动的更多信息,您可以查看此链接 https://www.geeksforgeeks.org/how-to-detect-browser-or-tab-closing-in-javascript/
希望这能解决您的问题。
,感谢其他人,我已经添加了代码并且运行良好。
<script>
window.onbeforeunload = function (e) {
e.preventDefault();
e.returnValue = "Please click 'Stay on this Page' and we will give you candy";
var d = new Date().toLocaleTimeString();
console.log(d)
};
</script>
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