I have a react app with react-router. I have multiple routes, and some of them are shown in a modal window. If I close the modal, I want to send back the user to the previous page, where modal was not active yet.
To know, if I have modal open, I use the state modal:true on the location. I know I could use simply history.goBack(), but I have the scenario when I'm on /login and the user goes from there to /register, but both routes show a modal. In this case, if the user clicks the close button on the modal, they will go back first to /login.
I tried to do something like this, but the history object is not updated with the new state.
goBack = () => {
while(true) {
history.goBack();
if (!history.location.state || !history.location.state.modal) {
break;
}
}
}
Related
Instagram example
As in the image above, in the user profile page with a url(profile/:username), the user is able to click on one of his posts which opens a modal containing that specific post, the url thereafter changes to p/:postId but doesn't navigate to another page, it instead displays above the profile page without navigating to p/:postId
I'm trying to do the same in my app and I have tried doing stuff like history.push but it's not working and I assume this is happening cause of react-router.
To achieve the behavior you described, you can use React Router to manage the URL change and display the modal with the post content.
Define a route in your React Router configuration that corresponds to the modal content you want to display. For example
<Route path="/posts/:postId" component={PostModal} />
In your component, include a link to the new route with the post ID as a parameter.
<Link to={`/posts/${postId}`}>View Post</Link>
In your PostModal component, use the useParams hook to access the post ID parameter from the URL. Then, fetch the post data from your API or store, and display it.
import { useParams } from 'react-router-dom';
function PostModal() {
const { postId } = useParams();
// Fetch post data and display it in modal
}
After that, Use CSS to display the modal as an overlay on top of your existing content, and use JavaScript to show and hide the modal as appropriate.
I am creating a react/Gatsby website and am trying to get the navigation working an need some guidance
So basically I have a site on a domain like: https//mysite.com
When navigating in the site my route gets added to the domain, like so: https//mysite.com/page1,
https//mysite.com/page2 etc.
When I refresh the browser I want the site to reload the website to its origional state, ie, https//mysite.com.
When I do reload from /page2, for example, the site seems to remember the last position. So on a reload I still have https//mysite.com/page2 in the address bar, whereas I want the site to go to the home page.
Is this possible?
Thanks
See this question for how to detect a page reload (such as pressing F5). The second most upvoted answer recommends this code for detecting the refresh and triggering another function:
componentDidMount() {
window.onbeforeunload = function() {
this.onUnload();
return "";
}.bind(this);
}
Gatsby uses #reach/router under the hood. So use Gatsby Link to redirect to your root page:
import { navigate } from "gatsby"
componentDidMount() {
window.onbeforeunload = function() {
this.onUnload();
return "";
}.bind(this);
navigate("/"); // redirect to your root page here
}
The user will be able to go back to the previous page. If you don't want this you replace the history like this:
navigate("/", { replace: true });
I'm using react-router-dom for routing in my reactjs app. And i want to prevent user from going back after login i.e i don't want to user go back again on login screen when he hit back button on browser after login.
Using componentDidUpdate method of React page lifecycle, you can handled or disabled go back functionality in browser. basically componentDidUpdate method will call automatocally when component got updated. so once your component is updated you can prevent to go back as below.
componentDidUpdate() {
window.history.pushState(null, document.title, window.location.href);
window.addEventListener('popstate', function(event) {
window.history.pushState(null, document.title, window.location.href);
});
}
This will prevent to user go back and uses the current page as a refernce for history object . so incase of user even click on back button of browser, they can not go backword in the last page.
You can checkout this codesandbox example may be that will help you or someone who is looking for the same.In this we can prevent the user to go back to previous page,For more detail checkout this medium article. here is small part of the code
componentDidMount() {
const { history } = this.props;
window.addEventListener("popstate", () => {
history.go(1);
});
}
for full working example click on this link.
Are you using redux? other wise you can add something on your render that checks if the user is already logged in it redirects him back to the page he was like:
import { Redirect } from 'react-router'
render(){
//I store my user JWT on this.props.currentUser redux state
this.props.currentUser && <Redirect to={'whatever page you want'} />
//OR you can also, if you have history, history.goBack()
So instead of forbidding going back, you forbid the user to ever going to the login page while logged in, it redirects him somewhere or back to where he was
window.addEventListener('popstate', function(event) {
});
use this function this will read your browser back button click event and after that whatever condition you want you can apply
This sounds ridiculously simple but I am not be able to find any solution for this from Google.
On my page, I have a button to close the page itself
<Button onClick={() => window.close()} >Close</Button>
But everytime triggering the button, i got the warning
Scripts may close only the windows that were opened by it.
I am using react-native for my mobile app, it connects to keycloak to (through WebView of RN) open Facebook authentication page and then, after that, keycloak redirects to success page (localhost/login/success which has the button to close the page itself. The page is under next.js). Even i access localhost/login/success directly on browser, I cannot close page neither
Update I managed to work around by using onNavigationStateChange and check if the navState.url contains the success/login or not to trigger the state and close the WebView. But i am still curious about how to close the window in React ?
You can use onMessage prop to communicate between WebView and React-Native.
A function that is invoked when the webview calls
window.postMessage. Setting this property will inject a
postMessage global into your webview, but will still call
pre-existing values of postMessage.
Example
_onMessage = (message) => {
console.log(message);
}
render() {
return (<WebView ref={(ref) => { this.webView = ref; }} onMessage={this._onMessage} ..otherProps />);
}
// In your webview inject this code
<script>
window.postMessage("Sending data from WebView");
</script>
:)
I'm trying to reload browser (with location.reload();) if user click in <Link> for the the same path, where it already.
Example:
I have a menu:
- Home
- Contact
- About
When user click in 'Contact', he go to '/contact'. But I he already in '/contact' and click in 'Contact' in menu, the page reload.
It's possible to do this?
What I'm trying:
<Link onClick={this.handleClick} to="contact">Contact</link>
handleClick(){
var currentRoute = 'React-Route path';
var linkRoute = 'link path';
if (currentRoute === linkRoute)
location.reload();
} else {
//do default transition
}
}
But I don't figure what I need to declare in 'currentRoute' and 'linkRoute'. :(
You shouldn't reload the page. Thats a really bad idea. Instead disable the link like this:
if you are on the home page your links would look like this
home
contact
about
Then in your handleClick() function you can just do this.
handleClick(e){
e.preventDefault();
var disabled = $(e.currentTarget).data('disabled');
if (!disabled){
//do redirect
}
}
Basically have a data attribute on the link that specifies if it is disabled or not (only disabled if its on the current page) and then only redirect if its on a different page
Reloading the page on the exact same page will cause you to lose all state and process that the user has done, which doesn't need to happen. It also reduces traffic on your server for a new page load (aka any data you need to load on the page load you don't have to do again).
You can use window.location.href to get the current URL. Then you can do your comparison.