I have a single page application and would like to navigate through the history using browser back and forward button. I am facing an issue when i click the back button once it does not navigate to the previous page but stays on the current page. Then when i click the browser back again it takes me to the previous page. I have tried out the following.
class PageModule {
constructor() {
window.addEventListener("popstate",function(){
this.handleHistory(true);
}.bind(this),false);
}
handleHistory(popStateEventFired = false){
if(popStateEventFired){
history.replaceState();
}else{
history.pushState(null,null);
}
history.pushState(null,null);
}
When i issue a search i add the search param as a query param in the url ?question=testsearch and call the method handleHistory(). I have checked other answers to similar problem but they dont seem to help.
I have to do this using vanilla javascript or knockoutjs as we maintain HTML bindings using knockoutjs but am not able to achieve this properly.
Any help is appreciated
Related
I am working with a big application, in that most of the pages are already build and the current architecture use location.href for changing the url. We are using angularJS and I know it is not the right way to do routing in angularJS but changing everywhere will be a headache.
The issue is I have a requirement that to show a dynamic breadcrumb in each page, and it should show the correct breadcrumb path when a user click on browser back button. I have created a history array for the same and when ever a browser back button click event happens I will remove one item from array and push last item to breadcrumb. Everything works fine with links as url, but logic fails when the redirection is happens inside a function like below
location.href="#/dashboard";
This below code is treated as a browser back button click by code. Below is my back button detecting code .
$rootScope.$on('$locationChangeSuccess', function() {
$rootScope.actualLocation = $location.path();
});
$rootScope.$watch(function () {return $location.path()}, function (newLocation, oldLocation) {
if($rootScope.actualLocation === newLocation) {
//logic
}
else{
//logic
}
});
I can use a rootScope variable for condition check before each redirection code , but it is not a proper solution because the redirection code is there in more than 500 places in the application.
So is there anyway to detect whether the call is coming from a browser back button or from some location.href ??
I have a problem brought about by a specific client requirement in nopCommerce.
I have a page - lets say page1 - which shows a block image which you then have to click through to get to the main part of the page (no matter how much I try to dissuade them from the extra click they are adamant - basically it's a 'glamour shot' before going to the main product grid/category page).
I have this JavaScript for the page load:
switch(window.location.pathname) {
case "/store/page1":
$(".category-page").hide();
break;
etc. (there are other functions for other things)
Followed by:
$(".landing_click").click(function () {
$(".landing_page").hide();
$(".category-page").show();
});
This all works great and displays the product grid (category page) as it should after clicking through the main image. However after viewing an individual product from the grid (going through to product details) clicking the back button on the browser takes you back to the first stage of the page1, so you have to click through the splash image/glamour shot again to get to the product grid.
To me this is logical and it is working as it should, but I need to find a way so that when the user is clicking the back button out of a product, it goes back to the product grid. Like this:
Is this possible with JavaScript? It needs to use the browser back button rather than a specific other button, although I could add one of those in addition as well.
If it were a straightforward website it would be relatively easy, but I am confined by the limitations of nopCommerce and the way the Category pages function, hence why I am looking for a JavaScript answer if possible so I can simply adapt what I already have.
Thanks
I would use location.hash to do it like this:
switch(window.location.pathname) {
case "/store/page1":
if(window.location.hash == "#landing") {
$(".landing_page").show();
$(".category-page").hide();
}
else {
$(".landing_page").hide();
$(".category-page").show();
}
break;
//The rest here
}
Followed by:
$(".landing_click").click(function () {
window.location.hash = "#category";
$(".landing_page").hide();
$(".category-page").show();
});
Now when you are in the product details page, a click on the back button will move you to /store/page1#category loading the category page directly.
I have looked around, but I'm not seeing anything that specifically addresses this. My goal is to have a link, which can be clicked to either add content or "undo" the act of adding that content. I am trying to us the following:
function ShowDiv() {
if (null == window.set) {
document.getElementById("box2").innerHTML = "Some Content";
window.set = "set";
} else
location.reload();
}
Link
<div id="box2"></div>
This allows me to click the link to show some content inside some div. And then to click the link again to remove that content.
However, I am wondering if there is a way to achieve this result, that also allows the user to click the browser's back button to return the page to the state it was in before triggering the function (e.g., to reload the page).
You are looking for the HTML5 history API. This allows you to push state onto the history as if the browser loaded a different location without actually sending a request and replacing all content and javascript state. This allows the back and forward buttons to work, as long as your JavaScript code shows the correct content according to the current URL.
Resources:
W3C
MDN
Dive Into HTML5
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 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);
});