tl:dr -> User notification system on website. Can you avoid the need to call a javascript script to render notifications after ajax loads? (a base view that calls it would work, but there are no base views afaik)
I am looking for a way to add a User Notification System to my website. Such system would be responsible for displaying messages like 'Import success', 'Import failed', 'Session timed out' etc.
I know similar questions have been answered before, but here's my question:
How should I do it to get as close as possible to having the notifications display themselves as soon as possible after being put to TempData? Having them rendered on _layout page would work, but only for requests that ask for whole page. What about loading only parts of website through ajax -> can I avoid having to write JS script in ajax callbacks or partial views?
I am looking for something to prevent writing multiple calls to same function.
Toastr is your notification Friend. Demo Page
you can install it from Nuget Install-Package toastr
See my SO question - for reference
Related
Inside my app, I'm using the WKWebView to display a website. My goal is, when user is pressing a button on this website, I want to stop an action linked to this event and replace it with my own, natively made (custom action outside the WKWebView). I've been trying to search for any solution to fetch mentioned event but unsuccessful. What more came to my mind, if there is a way to fetch a JavaScript in WKWebView, I have a possibility to add some JS script code to this site (not to delete the action I want to block). Thank you for any help.
First, do you have a permission to mess with this web site's behaviour? I assume you do, otherwise it is likely illegal.
Second, try using Safari Web Inspector with a device/simulator, and use the DOM tree and console tools to find out what is the HTML/javascript that is involved with this action on this site.
If you can't find what happens in HTML/JS yourself, feel free to post a new separate question on SO with your target URL, some HTML/JS code, and which link/action you want to replace. Tag the question with "javascript" and ask if it is possible to write some javascript to replace that particular action to some custom JS code.
Usually there are 2 types of actions: either it is something that provokes AJAX calls to a server API triggered by an event handler, or it is a plain HTML link that results in a web navigation. For both cases it is possible to write a JS script that overrides the action.
Finally, use WKUserScript to inject javascript into the page, and override the action. Use window.webkit.messageHandlers to send an event from your custom action to the app side. Use WKScriptMessageHandler to process the event in the Objective-C or Swift code.
See an example here: http://nshipster.com/wkwebkit/
i have to develop a multipage application that includes invocation of several web services.
My first page has a login page. based on the user input i have to traverse to next page while calling the next web service simultaneously. so obviously this all depends on the login page information that has the userid and password and the response from the web service such as personId etc.
i need to store this information temporarily for a particular session but... how to do this?
There are two kinds of page:
There are the UI states as seen by the user. Your Login page and your Next page are examples of these. From the user's perspective they see a succession of pages.
However you are writing an App, a single controlling thing that is in charge of all those "UI pages". I suppose that you are using MobileFirst to create a hybrid application that is effectively executing in a browser. From that browser's perspective you have a single HTML page. This is important, MobileFirst only works with single-page applications.
Now the browser loads the HTML and JavaScript for your single application page and that JavaScript stays resident as the user moves between the different "UI Pages", so the JavaScript can have variables for keeping the state you are asking about. The actual UI navigation from "page" to "page" is usually done by hiding and revealing DIVs.
Hence your WebService call results will be delivered (asynchronously) to some JavaScript function you define, and in the meantime your code can hide the login page and reveal the next page as required. The login data being held in JavaScript variabes.
All of this is simplified by using a framework such as AngularJS which abstracts the messy details of hiding and revealing and dealing with asynch delivery.
I'm creating a SPA app using Durandal and I would like to include a credit card payment facility. The guys that I'm looking at requires you to give return URLs to success, cancel and a view other pages, is that possible?
To me it would be breaking the 'single page' part of SPA, but is it possible? Could I do it all in a window?
Disclaimer: I don't know Durandal, but you would solve this in an SPA using either "hashbang URIs" or actually re-serving the SPA in your webserver for the requested return URI and adjusting the content using the same technique as hangbash URIs but using history.pushstate/history.popstate instead, see here: https://developer.mozilla.org/en-US/docs/Web/Guide/API/DOM/Manipulating_the_browser_history
A more general article from Google is available here that covers the same principle: https://developers.google.com/webmasters/ajax-crawling/
This "works" because SPAs are SPAs only in that the browser requests a new HTML document from the server once (or in your case, twice), the SPA should still be updating the history and address-bar state of the UA as the user navigates the application, just as though it were a regular multi-page application.
A great example of this is GitHub's source navigator: Try here ( https://github.com/angular/angular.js ) and navigate the repository, observe that the contents of the file-listing change as does the address bar, but your browser doesn't reload the whole page... yet if you copy+paste the (modified) address bar address into a new browser window, you get the same page back.
I looked into doing credit card processing from a SPA and the best option I had found was Stripe. They supply a javascript file that looks like it would work, I never implemented it on my project due to time constraints so I can't confirm that it works but it looked very promising.
IFRAMEs are quite good for this sort of thing. You can use jQuery to hook an event handler to the page load event and this will tell you when the other end has responded. Load the 3rd party page into the IFRAME and serve response pages on the URLs you provide to the service provider. As mentioned by others you can use routes to identify the response pages. The IFRAME will stop the round-tripping from mucking up your application state and in fact it is possible to put script in your response pages that dot-notates its merry way up the DOM and into your app.
in a ASP.NET MVC application that I am currently working there are multiple places in a single page that the user can click. So there is a main menu that's in _layout and for each inidividual page there can be links associated with that page.
I am trying to use a loader which will be shown on every click, mainly where the response takes time but for now it's for every click.
For example in the home page, from the main menu the user can click Students and the loader should come up and hide when the page loads completely. On the students page there can be an ajax call that gets data and binds it to the grid.
So from the time the user clicks on a menu link and the page loads the loader is active/shown. It's hidden once the page loads completely.
The grid can have editing functionality and when the user clicks on any of the CRUD links the loader should show and hide.
I am looking at suggestions on implementing this requirement.
If I can hookup any of the MVC events, that would be cool as I want less of Javascript/jQuery stuff but if Javascript/jQuery is the way then that's fine too.
Currently I don't have anything so anypointers are appreciated.
Assuming AJAX is being used
I don't see a way to keep this server-side without a middle page with a redirect being used (which would just be unnecessary bloat). And, since you're not opposed, you can implement this fairly easily using jQuery and something like blockUI.
I'll let you play with refining the binding to only links you care about, but for now we'll assume all links. Also, MVC should be using jQuery for things like Ajax.Actionlink so we can hijack events like $.ajaxStart and $.ajaxStop:
function showLoadingScreen(enabled){
return enabled ? $.blockUI() : $.unblockUI();
}
$(document).ajaxStart(function(){
showLoadingScreen(true);
}).ajaxStop(function(){
showLoadingScreen(false);
});
Later on you can maybe apply classes to the links you care about and just bind to them (instead of $.ajaxStart) but I'll leave that up to you.
Situation: I needed to add form with POST method to CMS page. I created custom hook and a module displaying the form successfully. Then I need to react to user input errors eg. when user doesn't enter email address I need to detect it, display the whole page again together with the form and with "errors" in user input clearly stated.
Problem: The problem is to display the WHOLE page again with connected information (eg. about errors etc.). In the module PHP file when I add this kind of code,
return $this->display(__FILE__, 'modulename.tpl');
it (naturally) displays ONLY the form, not the whole CMS page with the form.
In case of this code,
Tools::redirectLink('cms.php?id_cms=7');
I can't get to transfer any information by GET neither POST method.
$_POST['test'] = 1;
Tools::redirectLink('cms.php?id_cms=7&test');
I tried to assign to smarty variables too
$smarty->assign('test', '1');
(I need to use it in .tpl file where the form itself is created) but no way to get it work.
{if isset($test)}...,
{if isset($smarty.post.test)}...,
{if isset($_POST['test'])}... {* neither of these conditionals end up as true *}
Even assigning a GET parameter to url has no impact, because there is link rewriting to some kind of friendly url I guess, no matter I included other argument or not. ([SHOPNAME]/cms.php?id_cms=7&test -> [SHOPNAME]/content/7-cmspage-name)
My question is: is there a way to "redirect" or "reload" current page (or possibly any page generally) in prestashop together with my own data included?
I kind of explained the whole case so I'm open to hear a better overall solution than my (maybe I'm thinking about the case in a wrong way at all). This would be other possible answer.
The simplest method would be to use javascript to validate the form - you can use jQuery to highlight the fields that are in error; providing visual feedback on how the submission failed. In effect you don't allow the user to submit the form (and thus leave the page) until you're happy that the action will succeed. I assume that you will then redirect to another page once a successful submission has been received.
There's lots of articles and how-tos available for using javascript, and indeed jQuery for form validation. If you want to keep the site lean and mean, then you can provide an override for the CMS controller and only enqueue the script for the specific page(s) you want to use form validation on.
If the validation is complex, then you might be best using AJAX and just reloading the form section of your page via a call to your module. Hooks aren't great for this kind of thing, so you might want to consider using an alternative mnethod to inject your code onto the cms page. I've written a few articles on this alternative approach which can be found on my prestashop blog