Return to the previous page with inputs - javascript

Really unsure about the title question. Feel free to suggest. :)
Hi guys! I created a very simple code, that would represent my web.
Here is my home page:
<html>
<script type="text/javascript">
function getPage(linkPage,variables,divName){
$.get(linkPage + "?" + variables,function(data){$(divName).html(data);});
}
function show(){
//functionName("path","data","idName");
getPage("AjaxPages/hi.php","","#container");
}
</script>
<body>
<div id="container">
First Name<input type="text" />
<input type="button" value="next" onClick="show();"/>
</div>
</body>
</html>
Basically, it ask for information, Name for example. When the button NEXT is click it will call a javascript function that will call a certain page or the NEXT PAGE that will load on the div with the Id Container.
NEXT PAGE
On the next page, it will then ask another question, like Last Name for example. But then, I want to go back to the previous page to make same changes.
HERE is the code:
<script type="text/javascript">
function show(){
ajaxgetdata("index.php","","#container1");
}
</script>
<div id="container">
Last Name<input type="text" />
what to make changes on the previous page?<input type="button" value="back" onClick="show();"/>
</div>
When button back is clicked, it will just call the previous page, but will not include the text that you input on the textbox.
I know that it happens because it just call the page..
Is there a way? that when back button is clicked, it will reload the previous page, with all the contents/inputs.
:) :( :'( :/ :|

Don't load any additional pages. Do everything with AJAX.
If you don't want, some server-side script may help :D

If you can use HTML5 in your site, you can take a look at the History API which can handle navigation and fires a "popstate" event, to which you can pass data.
There's a good example here:
http://diveintohtml5.info/history.html
You could do something like this:
window.addEventListener("popstate", function(e) {
if(!e.state || !e.state.firstName) {
return;
}
document.getElementById('firstName').value = e.state.firstName;
});
That even will trigger everytime you go back or forward, and you could just organize some function or array with the information you need.
Hope it helps.

Related

Button onclick event does not redirect to another page although it calls the functions

The following code does not redirect to the given webpage
<form>
<button onclick='window.location.replace("../magnet/index.php")'>Replace document</button>
</form>
It is so because when you create a button within the form tags, it is created as a submit button by default. So, instead of redirecting the webpage, it submits the data and reloads the current webpage.
The following code will do the required job because now, the type of the button is button and not submit.
<button type="button" onclick='window.location.replace("../magnet/index.php")'>Replace document</button>
Even better, you can place your redirect code into a JavaScript function. Then you can call that function from within your HTML code. Like this
<script type="text/javascript">
<!--
function redirectTo(sUrl) {
window.location = sUrl
}
//-->
</script>
<button onclick="redirectTo('../magnet/index.php')">Get HTML!</button>
Hope this will work for you. Cheers
The answer was to add type="button" like #shivamag00 explained.
But be careful with replace(), it's not possible to use "back" to navigate back to the original document since you are replacing the history state.
An alternative is to use the assign() function, (documentation here)
Suppose you have a base url as
www.website.come
and want to go to
www.website.come/new-page
it's simple
<button type="button" onclick='window.location.assign("new-page")'>Go to new page</button>
It's worked for me, hope it's useful for someone else.

Sinatra: Present Form input without redirecting

I am trying to make a website, where a user can input some data. I would then run a number of methods on this data using sinatra and then display the results on the same input page (i.e. without refreshing (or redirecting) the page - as such the input data is still the form).
I understand that I would probably have to use javascript to watch the submit button and use that to stop the redirection.
I know ruby quit well, but do not know javascript that well; so please bear with me.
I have done quite a bit of research on this, but I haven't got anything to work. (This question is similar, but I haven't even been able to successfully use that).
This is the my sinatra file. Currently, pressing the submit button redirects to an another page.
require 'sinatra'
get '/' do
erb :search
end
post '/' do
#the_input = "<h2>ID header</h2>#{params[:input]}"
end
__END__
## search
<!DOCTYPE html>
<html>
<head></head>
<body>
<form action="/#result" method="post">
<input type="text" name="input">
<input type="submit">
</form>
<div class="result" id="result" style="display: none;">
<div class="content">
<!-- this is where the Results should display... -->
</div>
</div>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.11.1.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$('#result').submit(function(){
//parse AJAX URL
var action = $(this).attr('action');
var index = action.indexOf('#');
var url = action.slice(0, index);
var hash = action.slice(index, action.length);
$('.result').show();
$('.result .content').html(index);
})
})
</script>
</body>
</html>
I would really be grateful if someone could help me to get this to work so that the input of the form is displayed into the content div. Any explanation of what you are doing would also be extremely helpful.
Many Thanks for all your help.
This may help you
Basically prevent default redirecting.

How to call LinkedIn authorize javascript from button

This line of sample code from LinkedIn API works perfectly.
<script type="IN/Login" data-onAuth="loadData"></script>
but it runs automatically as the web page loads. I'd like to invoke this script using a button or link on a webpage. The idea being that the webpage loads and waits until the user is ready to authenticate.
Ideally I would like the LinkedIn Login image to appear, and wait, until clicked.
Thanks.
Based on your comment, it looks like you only want to display the SignIn plugin if the user has manually clicked a button/element on the page. Something like this, using jQuery, should work:
On your page, you have a button:
<div id="buttonControl">
<input type="button" id="showLinkedIn" value="Show LinkedIn" onclick="showLinkedIn();" />
</div>
<div id="buttonContent" style="display: none;"></div>
In a script block in the <head> of the page, you have the showLinkedIn() onclick function:
function showLinkedIn() {
// insert the SignIn plugin
$('#buttonContent').html('<script type="IN/Login" data-onauth="loadData"><\/script>');
// tell the LinkedIn JavaScript code to re-parse the element containing the SignIn plugin
IN.parse($('#buttonContent')[0]);
// hide button trigger, if needed
$('#buttonControl').hide();
// show the LinkedIn control
$('#buttonContent').show();
}
$('#buttonControl').click(function(){
$('#buttonContent').html('<script type="IN/Login" data-onauth="loadData"></script>');
$('#buttonControl,#buttonContent').toggle();
IN.User.authorize(loadData);
});
slightly different as the 'IN.parse($('#buttonContent')[0]);' does not seem to work...
tested 'IN.User.authorize(loadData)' and it works well! Got it from: http://developer.linkedin.com/documents/inauth-inevent-and-inui
You need to clear the cookies from the following method like
IN.User.logout(callbackFunction, callbackScope);
You need to call this function on that button from which you want to log out.
Example using jquery:
$('#demo') .click(function()
{
IN.User.logout(console.log("logged out..."));
});

How to rewrite all the current page with Ajax?

I have created a simple page with a button on the center.
Now I want that when I click the button then the current page is completly rewritten with new HTML and Javascript code loaded from the server.
How can I do this with ajax ?
Suggestion: post with a normal form and reload the page. If you're reloading the entire page anyway, you're doing away with all the benefits of AJAX anyway, best to reload the entire page, for example:
<form action="otherpagr.html">
<input type="submit" value="Click me" />
</form>
AJAX is for replacing part of a page to reduce the overhead...but if you're replacing say the entire <body> it's easier to just load the page you're going to.
Nick is right with what he says, but if there's no other way:
$('a').click(function() {
$('body').load("test.html");
});
EDIT: Making sure load only fetches content inside the <body> Tag from the remote adress. For me it didn't work to fetch only the <body> tag by defining body => load('test.html body')
To animate the page you could do something like this:
$('a').click(function() {
$('body').load("test.html", function() {
$(this).hide().fadeIn(2000);
});
});
but then I suggest to implement at least one wrapper-element.

Display confirmation popup with JavaScript upon clicking on a link

How do I make one of those hyperlinks where when you click it, it will display a popup asking "are you sure?"
<INPUT TYPE="Button" NAME="confirm" VALUE="???" onClick="message()">
I already have a message() function working. I just need to know what the input type for a hyperlink would be.
<a href="http://somewhere_else" onclick="return confirm()">
When the user clicks the link, the confirm function will be called. If the confirm function returns false, the link traversal is cancelled, if true is returned, the link is traversed.
try to click, I dare you
with the function
function confirmAction(){
var confirmed = confirm("Are you sure? This will remove this entry forever.");
return confirmed;
}
(you can also return the confirm right away, I separated it for the sake of readability)
Tested in FF, Chrome and IE
As Nahom said, except I would put the javascript:message() call directly in the href part (no need for onclik then).
Note: leaving the JavaScript call in the onClick has a benefit: in the href attribute, you can put a URL to go to if the user doesn't have JavaScript enabled. That way, if they do have JS, your code gets run. If they don't, they go somewhere where they are instructed to enable it (perhaps).
Now, your message routine must not only ask the question, but also use the answer: if positive, it must call submit() on the form to post the form. You can pass this in the call to ease the fetching of the form.
Personally, I would go for a button (input tag as you show) instead of a simple link to do the process: it would use a more familiar paradigm for the users.
[EDIT] Since I prefer to verify answers I give, I wrote a simple test:
<script type="text/javascript" language="JavaScript">
function AskAndSubmit(t)
{
var answer = confirm("Are you sure you want to do this?");
if (answer)
{
t.form.submit();
}
}
</script>
<form action="Tests/Test.html" method="GET" name="subscriberAddForm">
<input type="hidden" name="locationId" value="2721"/>
<input type="text" name="text" value="3.1415926535897732384"/>
<input type="button" name="Confirm" value="Submit this form" onclick="AskAndSubmit(this)"/>
</form>
Yes, the submit just reload the page here... Tested only in FF3.
[EDIT] Followed suggestion in the comments... :-)
???
This answer would be OK only when the click need NOT navigate the user to another page.

Categories