HTML5/jQuery: pushstate back issue - javascript

I have in my code the ajax call that loads my content. What I want is to add a deeplinking effect and from my research I found out that only raw coding will do it.
This is what I have so far:
jQuery("#sw_layered_cat a").click(function(){
var url_ajax = jQuery(this).attr('href');
history.pushState('', '', url_ajax);
});
This is working pretty well because the controller of ajax brings the results on my screen, and in another controller I change the url of the page. When it comes to go back to the previous url, I get the correct url but no content is loaded.
No matter what I try I cannot get the previous default url. For example, if I am in ../default/shop/paper.html(1) and move forward to ../default/shop/paper/paper-pads.html(2) and press back, I get the correct url (1) but the content is not loading.
I know I have to do something like:
window.onpopstate = function(event){ loadPage(//param); }
but I cant get the right param.

window.onpopstate = function () {
// Something like this. document.location should provide the data you want
// at any rate
loadPage(document.location);
};

Related

How can I detect page navigation without reloading?

I have script, what work one time when window loaded, it work on this page, but site use some navigation links what not fully reload page (see this answer for example: Modify the URL without reloading the page). How can I detect that and run my script again?
I have one idea: storing URL (without anchor) in variable and check it periodically with current url, but I think this is bad solution. May be you know better one?
JavaScript or JQuery is possible to use.
Use window.onpopstate or window.onpushstate if u are using pushState or replaceState ( from ur given example).
ex:-
To Navigate Without reload ( you already did this )
// Your code to fetch new URL body and title
// update the DOM then use following code to update URL also (don't use location.href, otherwise the page reloads)
// sorry u already know this because u provided the example ;)
let data = { title : "Current Title",
body : document.body.innerHTML" } // to store current page data
window.history.pushState(data, 0, "newURL");
To detect navigation ( i.e., you wanna do )
window.onpushstate: when above code runs for navigation to a new url and load new content without reload ...
window.onpushstate(function() {
// detects ur navigation
})
window.onpopstate: when you press back button
window.onpopstate(function (e) {
let { data } = e.state;
// data object that u gave in pushState method when u called ur last / latest pushState method...
// use this data to retrieve previous data content and title
let { title, body } = data;
document.title = title;
document.body.innerHTML = body
})
for more detail mdn docs
That's because the new pages are either
1 ) Already at the ready and simply being brought in-sight by jQuery
2 ) Ajax called in.
If you scout for your navigation (the links you click on to go to the other page), you should find click me or so.
If you look for wherever this is is bound (i.e.: $('#navigation a').on("click", function(){});, you can simply wrap your script within a function, and trigger this function together with loading the new page every time. (after it, obviously).
I wish I could be more clear, but you did not provide any code yourself, so I have absolutely no idea of what kind of example I should be giving here.
-- the point: Those page changes are triggered by something in your javascript. Find the trigger that makes the page-change happen, and simply insert myCustomFunction();.
If you want to make your bindings update with a new DOM, you could use this:
function setBindings(){
//removing the old bindings prevents the "click" from triggering twice.
$('a').off("click");
$('a').on("click", function(){
//load page and such here
//Apply script you want to run here
setbindings(); //rerun the function to set the bindings.
});
}
I think you are looking for hashchanges you can listen to this event onhashchange
window.onhashchange = function(e) {
var sublink = window.location.hash.substring(1);
//do your thing here
}
You can also check what updated the url after the hashchange
var sublink = window.location.hash.substring(1);
I think the URL of script is cached,do you used Ajax get method?if it is,please
like this write url "wwww.baidu.com?"+Math.random();if not is ,in the firefox ,you can used pageshow event.

Ajax - doesn't change URLs

I made the contents of the page change using Ajax, but the problem is the site url stays the same, therefore it doesn't load the page at all, just the text on it. So for example, I click on the Login link and the content changes, but the url stays on site/, not site/login. The actual login form does not load because it doesn't even call it, only loads basic text. How can I fix that ?
P.S. Using Zend for the website
Script:
$(document).ready(function() {
$('a').click(function() {
var toLoad = $(this).attr('href');
$('#content').load(toLoad);
return false;
});
});
Ajax does not reload the page or load another page so the url does not change when you make an ajax request.
If you want the url to change, for example so that your ajax-filled pages can be shared and bookmarked, you need to change the url manually.
You can use the html5 history API for that.
A simple example:
// we need the click event here
$('a').click(function(e) {
// cancel default click action using `e`
e.preventDefault();
var toLoad = $(this).attr('href');
$('#content').load(toLoad);
// check if the html5 history api is available in the browser first
if (window.history && window.history.pushState) {
// push the state to the url in the address bar
history.pushState({}, e.target.textContent, e.target.href);
}
});
Now the url in the address bar should change to the url of the link but the link is not really followed, instead the ajax request was made.
Note that you also need to make sure that all your urls load correctly. This is just a simple example and by the look of it your linked url would not load a complete page.
Check for example the documentation on mozilla.org for more information.

How do I change this JavaScript?

I want to change the way that content is displayed on my website:
var FNav = {
init: function() {
$("a[href*=#]").click(function(e) {
e.preventDefault();
if($(this).attr("href").split("#")[1]) {
FluidNav.goTo($(this).attr("href").split("#")[1]);
}
});
this.goTo("home");
},
goTo: function(page) {
var next_page = $("#"+page);
var nav_item = $('nav ul li a[href=#'+page+']');
$(".page").fadeOut(500);
next_page.fadeIn(500);
How do I change this JavaScript, so I can have a proper back button functionality?
What I have tried (Unsuccessfuly). These are the solutions that I tried but without changing the javascript above. That is why I think none of them seem to work.
Using the History.js method described here:
https://github.com/browserstate/history.js/ I fill out all the steps and
enter the scripts to the header, however only the URL in the URL bar
changes when I click on a link. When I click the Back button, the URl
changes accordingly, but content doesn't load. When I enter a URL in
the URL bar, I get sent to the home page.
Ajaxify and Gist method
described here: https://github.com/browserstate/ajaxify Achieves the
same as above, same issues as well
Davis.js method described here:
https://github.com/olivernn/davis.js Achieves nothing upon completion
of the installation instructions. No change.
jQuery BBQ Plugin method
described here: http://benalman.com/projects/jquery-bbq-plugin/
Achieves nothing, no change upon loading the .js file in the header
of the website.
I read this article and understood it:
http://diveintohtml5.info/history.html
I'm not sure why you couldn't get Davis.js to work for you? Perhaps open an issue on the GitHub page.
If you want to use hash based routing with davis you need to include the hash routing extension. You then just need to include it in your page after davis.
The following setup should then allow you to handle routes
Davis.extend(Davis.hash)
Davis(function () {
this.get('/:page', function (req) {
FluidNav.goTo(req.params.page);
})
})
Assuming you have links in your page with the following
Page1
Page2
Davis will take care of handling the back button for you, so that if you click on the link for Page1 and then Page2, clicking on the back button will navigate to Page1 again.
If you have any problems please open an issue on the GitHub page detailing what you have and what isn't working and I can take a look at it.
The back button does not magically work. You need to code and listen for the event change!
In history.js, it shows you right on the front page:
// Bind to StateChange Event
History.Adapter.bind(window,'statechange',function(){ // Note: We are using statechange instead of popstate
var State = History.getState(); // Note: We are using History.getState() instead of event.state
History.log(State.data, State.title, State.url);
});

Effectively handling Browser history and Back button [duplicate]

I want to change the way that content is displayed on my website:
var FNav = {
init: function() {
$("a[href*=#]").click(function(e) {
e.preventDefault();
if($(this).attr("href").split("#")[1]) {
FluidNav.goTo($(this).attr("href").split("#")[1]);
}
});
this.goTo("home");
},
goTo: function(page) {
var next_page = $("#"+page);
var nav_item = $('nav ul li a[href=#'+page+']');
$(".page").fadeOut(500);
next_page.fadeIn(500);
How do I change this JavaScript, so I can have a proper back button functionality?
What I have tried (Unsuccessfuly). These are the solutions that I tried but without changing the javascript above. That is why I think none of them seem to work.
Using the History.js method described here:
https://github.com/browserstate/history.js/ I fill out all the steps and
enter the scripts to the header, however only the URL in the URL bar
changes when I click on a link. When I click the Back button, the URl
changes accordingly, but content doesn't load. When I enter a URL in
the URL bar, I get sent to the home page.
Ajaxify and Gist method
described here: https://github.com/browserstate/ajaxify Achieves the
same as above, same issues as well
Davis.js method described here:
https://github.com/olivernn/davis.js Achieves nothing upon completion
of the installation instructions. No change.
jQuery BBQ Plugin method
described here: http://benalman.com/projects/jquery-bbq-plugin/
Achieves nothing, no change upon loading the .js file in the header
of the website.
I read this article and understood it:
http://diveintohtml5.info/history.html
I'm not sure why you couldn't get Davis.js to work for you? Perhaps open an issue on the GitHub page.
If you want to use hash based routing with davis you need to include the hash routing extension. You then just need to include it in your page after davis.
The following setup should then allow you to handle routes
Davis.extend(Davis.hash)
Davis(function () {
this.get('/:page', function (req) {
FluidNav.goTo(req.params.page);
})
})
Assuming you have links in your page with the following
Page1
Page2
Davis will take care of handling the back button for you, so that if you click on the link for Page1 and then Page2, clicking on the back button will navigate to Page1 again.
If you have any problems please open an issue on the GitHub page detailing what you have and what isn't working and I can take a look at it.
The back button does not magically work. You need to code and listen for the event change!
In history.js, it shows you right on the front page:
// Bind to StateChange Event
History.Adapter.bind(window,'statechange',function(){ // Note: We are using statechange instead of popstate
var State = History.getState(); // Note: We are using History.getState() instead of event.state
History.log(State.data, State.title, State.url);
});

How to handle every link click on a page in JS or jQuery?

People create their own websites using WYSIWYG creator i give them. These websites have links inside of them. Also they can explore the HTML of the website and put there their own links.
I would like now to handle every link click occurring in website created with my creator and log it to my server. I know how to pass the data from JS or jQuery to PHP server. But what i need to know is how to handle the moment when person clicks a link, postpone the redirection for some moment, and in this time get the url and title of this link and send to my PHP server.
So how to handle every link click (or location change) on website that structure i don't know and get the link and title of the link clicked?
$('a').click(function(e) {
e.preventDefault();
var href = $(this).attr('href');
var title = $(this).attr('title');
// Send your data to php
if ($(this).attr('target') === '_blank') {
window.location.href = href; // redirect to href
} else {
window.open(href);
}
});
jQuery("a").click(function(){
var href = $(this).attr('href');
$.post('/', {link: href}).then(function(){ document.location = href; });
return false;
});
just a try
To intercept every link, just place this function somewhere that every page has access to (header/footer/etc.):
$('a').click(function(event) {
event.preventDefault();//To prevent following the link
//Your logic. attr('href') and attr('title')
});
You can use jQuery to do this. Use the on event and bind to the click event of a element. You can then do an event.preventDefault(); do your logic and then continue as normal by getting the href from the target.
Why you want to wait till logging is completed for the redirection. Let it be an asynchronous call so that user don't need to wait. If you want to have your server page in a different domain, to tackle the cross domain ajax issue, use jsonp datatype.
$('a').click(function() {
$.ajax({
url:"yourwebsite/loggingpage.php?data="+$(this).attr("href"),
dataType: 'jsonp' // Notice! JSONP <-- P (lowercase)
});
});
and in loggingpage.php, you can read the request data and log it to your persistent storage or wherever you want.

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