I am using https://github.com/reactjs/react-autocomplete for easy navigation in my webapp. My usage is similar to the example seen here: https://github.com/reactjs/react-autocomplete/blob/master/examples/async-data/app.js
I want the browser to open a certain url (in the current window) when the user selects an item of the autocomplete.
My code for this looks like this:
onSelect={(value, item) => {
const url = "/customer/" + item.id;
//alert(url);
window.location = url;}
}
When an item is selected in the autocomplete (via cursor keys + enter key), the browser does not open the new url, which would be expected. Instead, the browser reloads the current page and adds a question mark at the end of the url.
The weird thing is: When I place an alert(url) before the window.location assignment, it works (the browser shows the alert first and then indeed opens the new url).
Any ideas what I am doing wrong? Thanks!
Ok found it, the react component was contained also a from. So hitting enter triggered a form submit in addition to triggering the onSelect callback.
Related
Information:
I have made a "tabs" type section to display all of my legal forms (https://get.goreact.com/legal/). I have given each individual tab an ID that populates in the URL. For example when I click "Privacy Policy" the URL changes to (https://get.goreact.com/legal/#legal|2).
Problem Trying To Solve:
The URL changes depending on what tab/button you click on. But if you try going that the URL directly (or a new tab) it doesn't open the correct tab/display the correct content.
What code do I need to add in order to have the URL "https://get.goreact.com/legal/#legal|1" and "https://get.goreact.com/legal/#legal|2" and so on open the respective tabs? I am new to JS and need some help.
You can use one short solution by using jQuery. After this, you don't have to add or remove any classes to any element.
$(document).ready(function(){
if( window.location.hash != "" ) {
$('a[href="' + window.location.hash + '"]').click()
}
});
Try this once
Been searching on the web for a solution, but couldn't find anything, so maybe it's not possible, although I hope it still is.
What Im trying to do is detect the button (class or id) that was clicked when being redirected to another page on my site.
What I have is a portfolio page that contains a large amount of divs with different classes, so when someone clicks on a specific button on the homepage and gets redirected to the portfolio page, is it possible to detect on the portfolio page how the visitor got directed from. So detect which button got clicked.
no idea how to approach this, something maybe with if previous window.location last action find class or id.
Hopefully my question makes sense and someone can give me an idea if even possible.
I imagine it would rather be possible to do with php, but unfortunately server side languages are not an option in this case.
Thanks
Examples of methods you can use
add the information in the originating url - use location.search or location.hash depending on your choice of ? or #
Set a cookie (or use session/localStorage in modern browsers) in originating page and read it in the target page
Interrogate document.referrer (not always set)
You can't do it without either modifying the links (adding a query string or hash), or having code on the source pages (where the links are).
The former is pretty obvious: Just add a query string or hash (I'd use a hash) that identifies where the click came from, and look for the hash on the portfolio page. E.g., links:
Portfolio
Portfolio
and in the portfolio page:
var from = location.hash;
If you don't want to do that, and you can put code on those pages, it's easy: Add a click handler that sets information about the link in sessionStorage (very well-supported on modern browsers), and look for it in sessionStorage when you get to the portfolio page.
E.g.,:
$(document).on("click", "a", function(e) {
// Maybe check the link is going to portfolio, or refine the selector above
sessionStorage.setItem("linkFrom", this.className);
});
and then in the portfolio page:
var from = sessionstorage.getItem("linkFrom");
You can use window.localStorage to save the last id of the clicked element.
localStorage.setItem('last_clicked_id', id);
And then read it in the next page:
localStorage.last_clicked_id
Before running you should check for localStorage support:
if(typeof(Storage) !== "undefined") {
//localStorage code
} else {
//no localStorage support
}
this is how it works: the recent page or url is set on the URL parameters like a GET server request, but instead the client will receive it and parse it not the server. the recent page or url is on the "fromurl" parameter. on every page put this in (it's a javascript code):
function getURIparams(s) {
loc = window.location.href;
loc = loc.substring((loc.indexOf("?")+1));
loc = loc.split("&");
for (l = 0; l < loc.length; l++) {
lcc = loc[l].split("=");
if (lcc[0] == s) {
return lcc[1];
break;
}
}
}
next on every anchor link put this in href:
The Link to another page
after that, on every page execute this javascript:
from_url = getURIparams("fromurl");
the "from_url" variable will be the string variable of where the user clicked before it comes to that page.
if you are to lazy to put all those anchor one by one like this, do this work around but you need jquery for this. you dont need to put the parameter on the links for it to know where it comes from it will be automatically added by jquery.
$(document).on('click', 'a', function(e){
e.preventDefault();
window.location.href = e.target.href + "?fromurl=" + window.location.pathname;
});
I am building a website that is navigated through a series of directional buttons. Right and left clicks move between different images associated with one project. Up and down clicks move between projects.
What I am trying to do is ensure that when a user clicks up or down (i.e. between projects) that this is registered as a history traversal event and that a new entry for the new project is visible within the browser's history.
The code that I have sets an event on the the click of the navigation buttons that makes the necessary changes to the pages content, and then I attempt to push the new page to the history object by calling this function (see here and here for background information):
var pushToHistory = function(url, pageTitle, html) {
history.pushState({'html':html, 'pageTitle':pageTitle}, '', url);
}
I supply the arguments to this function elsewhere by doing the following after the page has loaded the new content:
html = document.getElementsByClassName('main-frame')[0].innerHTML
pageTitle = 'http://mysite/'+newpath; // new path specifieds the new item.
this.pushToHistory( url, pageTitle, html);
Now the problem I am having is that the result of all of this is that both in Chrome and in Firefox the history is updated in a way that is mostly correct: the url in the history's state object is correct, as is this the content. So that if I click on one of these history events, the correct page is retrieved.
However, the page title, which is shown in the list of history items is incorrect. It is always the title of the page that was loaded when the site was intially loaded. So if I load mysite/a-project, and the title of the page is "My Site - A Project" that is always what appears in the box. I have also checked my code to ensure that the pageTitle object is correct, so dumping pageTitle before calling history.pushState() shows the correct title.
Any ideas?
I discovered the problem. I needed to set document.title first. That meant somewhere before I call history.pushState(), I needed to do this:
document.title = theNewTitle;
imagine the following scenario:
i have a jquery-mobile formular, it´s results are linking to its resultpage.
on the resultpage i have this back button:
this works fine to just update the content and keep the submitted form data,
but
what if a user came from a search-engine or similiar extern link, then my back button links back to the searchengine/externLink .
so how do i Differentiate between those who came from my form or anywhere else in a jqm-way ?
i have a "start-search-page" i would love to link to if the user didn´t came from the search and i don´t want to miss the ajax-link from my search to the resultpage, use the same button and idealy i don´t have to set any cookie.
is there any hint or smarter attempt than check the server url from document.referrer ?
thanks in advance
You can check current page url using below code:
var prevUrl = $.mobile.activePage.data('url');
in case u want to perform different actions based on previous URL.
then on save the URL in the global javascript variable and on click of the button check the previous URL and do the your functionality. eg
Before Navigating to page:
var prevUrl = $.mobile.activePage.data('url');
on click of button:
if (prevUrl=="myurl") {
//do something
$.mobile.changePage('#search')
}
else {
$.mobile.changePage('#nothing')
}
I want to use onbeforeunload to give a message to users before leaving certain pages.
Is it possible to know which url they are supposed to jump to at the onbeforeunload event?
Thanks
Is it possible to know which url they are supposed to jump to at the onbeforeunload event?
No, definitely not. The onbeforeunload event tells you only that the page is about to be unloaded, but not why.
It depends on how the user is leaving the page.
If they are typing an url in the address bar - then you're out of luck. As far a I know there's no way to capture the url of an address bar jump.
If they are clicking on a link contained somewhere on the page - that you can use the click event to capture the url and then decide how you want to handle things.
I posed a similar question
How can i get the destination url of a link on the web page in the javascript onbeforeunload event?
because I had a project to fix a wholesale order form. During the process of filling out an order my client's customers would go back to the catalog to check on a product's detail page and loose the current information on their order form.
By using the code below (which uses JQuery though I'm sure you could create the same thing in pure Javascript if you had to) I could tell when the user clicked a link that would leave the order form and then give them the option of opening the link in a new window/tab or loading the url in the current window and loosing their form data, or just returning to the form. This code works with all of the major browsers, at least their more recent versions.
$('body a').click(function(e) {
//if link references a page element
if ($(this).attr('href').charAt(0)=="#") {
return;
}
//check if link is to same window
var pathname = window.location.pathname;
var pathname2 = $(this).attr('href');
pathname2 = pathname2.replace(/^.+\.\//, '');
if (pathname.indexOf(pathname2) >= 0) {
//link clicked is contained on same page
//prevent page from getting reloaded & losing data
e.preventDefault();
e.stopImmediatePropagation();
e.stopPropagation();
return;
}
//link clicked on is another page
if (hasMerchandise) { //var to indicate user has items on order form
//give user options: leave page, open link in other page, stay, etc.
// $('.popupForm-handleExitRequest').click(); //roll your own code
//prevent page from getting reloaded & losing data
//in case user wants to cancel page change or open link in another window
e.preventDefault();
e.stopImmediatePropagation();
e.stopPropagation();
} else {
//load new page
$(this).removeAttr('target');
}
});