I could not think of a better title, Please suggest one.
I am planning to work on a large web application. It will take time to load the full application before application starts functioning.
Suppose its something like asana.com. If you have a link to the task and you open the link. It loads the application first and then shows the detail of the task.
Note: I have added another example in update 2
I want to do just the opposite. Suppose if I try to open the link directly. It should show me the tasks details first and then load the whole application in background.
What development strategy should I follow to implement such feature. Will angular be good for this? I have worked with angular for small projects and am capable of think in angular :)
I just wanted to be pointed in right direction.
Update 1:
I am using Apache2 PHP5 in backing as ReST API. I am thinking to change to GoLang http server. But that does not matter in this context :)
Update 2:
I have not yet started working on the application, but I know that its size is going to be big and its going to take time to load the application. This will be a javascript application, all the communication to web will be done mostly by API. APIs will be fast and it wont be slowing down the application. My main concern is the javascript library and the approach to the issue that I want to display the content of the page before the application is loaded and load the application in background.
As second example: https://chrome.google.com/webstore/detail/a-journey-through-middle/gjgkjeheegjnnmheaflhdocglkiegoni?utm_source=chrome-ntp-icon
If you open this link in chrome, it will load the application and then load the specific content in a popup. I want to load the content of the popup first and then load the application in background. How should I write my application to achieve that.
My suggestion (and I say this as I start to do similar vs. having proven it successful) would be to make some level of framework fairly static so that users get an almost instant response to the site loaded and then start the angular app with something like this
angular.bootstrap(document.getElementById("container"), ["app"])
Ref for the api - https://docs.angularjs.org/api/ng/function/angular.bootstrap
Ref for a demonstration of this - https://egghead.io/lessons/angularjs-angular-bootstrap-app-init
My expectation then is that you will be able to
Load your static elements quickly (which will just have placeholders for your content/material)
Access the data you want in the order you want to get it to present on the screen
Release any other part of the app you need to chrome it up/decorate or populate side items.
Related
I am working on adding a small one-page AngularJS application to my friend's Wordpress site. The application will take some user input and generate on-screen output using that input. It will also log the user input for analysis purposes.
I will need to be able to host the files for that page on my friend's site as well as create a back-end script that can capture the user input and store it to a MySQL database.
I have worked with WordPress sites before but have never customized them or written a plugin. How would you go about making this happen?
I will select the answer that leads me down the most efficient / effective path. Thanks!
After poking around for a while, I ran across the Advanced Custom Fields plugin. Using this helped me add custom JavaScript to the specific page that needed Angular support.
Here is information on how to use ACF to add JavaScript support:
https://www.godaddy.com/garage/3-ways-to-insert-javascript-into-wordpress-pages-or-posts/
Here is the plugin itself:
https://wordpress.org/plugins/advanced-custom-fields/
I'm curious what things a developer can do to make the creation of automated tests easier for testers using selenium web driver. The only thing I'm thinking of is using unique IDs for fields, buttons, etc. Can anyone think of any thing else that can be done?
From my experience, this really helps to automate whole process:
Provide unique IDs to at least important buttons (submit form, search buttons...)
Do not use HTTP Basic Authentification. Use normal login instead
Get rid of CAPTCHA fields. At least on test environment.
Provide friendly URLs, so that certain areas of app can be reached immediately
When page is loading, show some load image. Best option is to provide some small element which loads only when whole page is loaded.
Get rid of hover-only menus on page (you have to hover certain element to see other)
What's the best practice of loading data at launching Chrome App?
The landing page of my Chrome App is dependent on some configuration data, which I've stored in the chrome local storage. However, reading chrome local storage is an asynchronous process. Hence, after the App has launched, there is a period of time when the landing page doesn't show correctly.
To avoid this blank time (due to the asynchronous process of reading local storage), I'm thinking about reading data at background JS. However, I haven't googled out what's the best practice to do it.
Anybody has any comments? Thanks.
just listen to the onLaunched event
chrome.app.runtime.onLaunched.addListener(function() {
// load your data
});
Here's one piece of helpful suggestion I've got from the Google Group. Share here so that someone with the same problem might refer to it:
You can read from chrome.storage in the background page and open the window when the data is ready. However, the user experience might be even worse, because instead of the incorrect landing page, you have no user feedback at all.
The usual (and easy to implement) solution is to show your landing page with some visual feedback during data loading, like a spinning wheel with a "Loading" label. If you UI really requires the data to show up, you can add this visual indicator as an opaque div on top of the whole window.
Some people use splash screens, but I don't think it adds to the user experience.
Our application is a one-page application created using ExtJs. For any user action, the browser tab is never reloaded and all the actions are performed using ajax. A user can open/close multiple ExtJs windows/panels within the same browser tab, and this way everything remains confined to the same browser tab.
Now, we need to integrate payment gateway in the application, which involves redirecting the user to the bank website and having her brought back to our application.
The issue is that when browser redirects the user, then all the application javascript code along with panels and windows get destroyed, and when the user comes back to the application then she finds it to be different from one she left.
As a solution to this, we were thinking of using following two appraoches:
Option 1. Maintaining the state of application - When user leaves for the bank's website then somehow we maintain the state of application - like which windows are opened carrying what data, which variables have which values etc.. and when user returns back, we generate the same application state for her.
Option 2. Have a browser pop-up window for payment gateway - We intend to provide a button which will open a small pop-up window carrying the transaction details, and in this pop-up window the entire payment gateway process will take place taking care of redirection and everything.
Option 1 is proving to be very cumbersome and complicated as maintaining the exact state is not getting feasible.
For Option 2, we are not sure if this is safe and possible?
Has anyone implemented such an approach earlier. Otherwise, what are the other options which we can go for?
Thanks for any help in advance.
I faced the problem and I implemented it using websocket/polling in the main application while a new window pops up for the payment.
After the payment is successful the main application will be notified.
That way each payment runs in it own sandbox totally unbound from the main application which makes maintenance quite easy. Note that our backend create a new session for each payment using the existing one.
I think it is not uncommon to open new windows for payment that's why I decided to go this.
I already have an ExtJS app but now I'm trying to build a mobile version with Sencha Touch. I want the browser to detect if it's running on mobile or not. That works fine, but what is my next step?
I have it redirected to a /mobile folder with a new index.html and that works fine until I try to reach classes from a parent class.
Is it possible to load the mobile app.js instead of the extjs app.js in the primary index.html?
I don't think you will be able to get away with having just one application. Ultimately you would need to create two different apps - one using ExtJs framework, another using Sencha Touch.
Whether you will be able to share some code is a good question. I think you should be able to share models, but that's about it. And even though - I would not recommend doing that either. Because even if show similar information from the same back end in both full and mobile version of your application, you might not need all of it in the mobile application. And if you don't need all of it - your models will be different.