We have a very simple digital signage application that loads six web pages and rotates through them in an iframe.
We thought we would like to take this application and run in kiosk mode as a chromium app. However, simply using the HTML in the page has thrown all kinds of errors for the app. The most consistent on is the illegal use of external images, css, and fonts as well as complaints about javascript libraries, etc.
It looks as though it will be extremely painful to try to make this into a kiosk app.
Is it possible to make this type of conversion?
Does anyone have advice as to how to proceed?
Can you pull in external pages into a Chromium app?
You cannot run Javascript on a browser via local filesystem for security reasons. But what you could do is package the web app as a local app.
One option is to use Windows HTML Application (HTA)
http://en.wikipedia.org/wiki/HTML_Application
But this requires Internet Explorer to run.
Another option that sounds great is using Node Webkit. I have never done it before, but seems very powerful.
https://www.npmjs.com/package/nodewebkit
You can write a powerful Javascript app and run it locally this way.
UPDATE
Official Node Webkit website:
http://nwjs.io/
Related
I have been developing an app using HTML, CSS, and JS, using the App Mode command line argument for Google Chrome. It works nice, but I would like some ability to use the local file system without manual input from the user. That is, if I want a file accessed directly, I want it automatically done, not requiring the user to load the file in.
One option is to disable web security, which I'm not doing because there is a need to use Google Chrome normally. I haven't been able to use a command line argument to create a separate instance of Chrome, either.
I tried working on an HTA, but any attempt to port the code to HTA ends in headaches. Also, it doesn't seem to enjoy the perks that Blink/Webkit grants.
I looked into Electron and other similar platforms, and it requires installing a handful of things, which is a no-go due to the computer setup.
Are there any solutions with a sort of portable app, that can be dropped in a folder with the HTML document (say, labeled index.html or main.html), and upon opening the browser it directly opens that file without having to configure anything? A sort of barebones chromium-based browser that only opens a single file, allowing use of HTML, JS, CSS, along with local file access? Kind of like HTA but modern?
The good news, is that it does exist, but it's not as "out-of-the-box" as HTA.
My team has migrated from HTA to WebView2.
The overall approach is to build a program with the WebView2 browser (you're basically building your own HTA like browser). Your javascript code can communicate back and forth with the program, which in turn has full access to local resources.
WebView2 is the Microsoft Edge Chromium browser, so you're getting the latest web tech and layouts (a big pain for HTA dev.). The program that contains the WebView2 control has full access to local files, scales, printers (without a pop-up dialog).
The approach has all the benefits of HTA (html / javascript programming, local file access, web based deployment, etc.), plus all layout and other benefits of a modern browser.
The program you'll build is very small, especially compared with the HUGE runtime of similar solutions, like Electron.
Rick Strahl has an excellent article on WebView2, and tips for building the program I'm describing. He has great advice on how to build an installer for it, including "Evergreen", which keeps the WebView2 up-to-date with the latest browser tech.
Microsoft's introduction to the technology here.
https://learn.microsoft.com/en-us/microsoft-edge/webview2/
Is it possible to pack s single page application (its JavaScript files and images and all the assets) so that it can be distributed as a native
desktop application? Like having an instance of Chrome without any button that just runs your application offline.
I've used software that seems to be crafted like that, for example TweetDeck by Twitter gives me the impression of being just the web-version of TweetDeck packed in some way to run in a context that is not your standard browser.
You can use NW.js (previously Node WebKit) or Electron to do just that.
There's NW.js.
To package nodejs / html apps on the desktop.
You can do it by implementing a headless browser application.
There is an open source web browser engine here https://www.webkit.org/.
You incorporate it in a native application and parse the source files.
The webkit documentation presumably contains the specifics, have fun :)
Very much possible and all HTML5 apps are doing that, all your need is this:
https://cordova.apache.org/
What's the best way to turn an HTML/Javascript web app into a self-contained app that can be run from Windows (and maybe Mac/Linux) PC's? Preferably without any installation, ie a network share.
I have looked into Chrome and Firefox Portable, but these require write access to the folder, so are unsuitable for running off a read-only network share.
(some background, I have a big javascript app but many of my clients are using IE6 or 7. Their IT teams won't allow Chrome Frame, or other modern browsers).
node-webkit sounds most promising.
From the README on the github repository:
node-webkit is an app runtime based on Chromium and node.js. You can
write native apps in HTML and Javascript with node-webkit. It also
lets you to call Node.js modules directly from DOM and enables a new
way of writing native applications with all Web technologies.
If LightTable can be built with it, certainly a web application can be ported and run natively using it.
I know this is a bit late, but what about Sencha Desktop Packager?
http://www.sencha.com/products/desktop-packager
It was primarily developed for ExtJS apps, but it should work on any JavaScript app.
We had a similar requirement and ended up building a dedicated web browser using QT. However if we'd known about the Sencha Desktop Packager before we may have gone for that.
i am looking for an option to fully deploy the client side AJAX app written in js using qooxdoo framework.All view logic stays at Qooxdoo JavaScript framework. But i want to deploy it as desktop client too.
It already hosted on server and working fine but just to avoid Download time (JavaScript alone is 2 MB ) i also want to distribute as desktop client.
what i am looking for are :
Should work in Mac , Linux, and Windows and possibly android
Browser controls are unnecessary (location bar etc)
Should be able to run eval coz qooxdoo use eval selectively which make adobe air unable to work .
I know how to do in Xulrunner but I would prefer to do host it inside google chrome. I also finding a way to bundle xulrunner in portable way (is that already portable?can just download and run directly?)
EDIT: I looked Prism and its promising but is there anyway to bundle Client Side Web Content in a web bundle for Prism ? From its descrpition on Mozilla Wiki , we can't do that.
node-webkit looks like a viable option for packaging the entire application. I haven't used it and have only recently found out about it.
Appcelerator is an option, however there are some restrictions when using it. Some have successfully used the qx-oo (just the OO layer) with Appcelerator. Search "qooxdoo appcelerator" for more information. There may be issues when using it with the qooxdoo UI layer (which is likely the whole point of your using qooxdoo.
Lastly, one "low tech" option might be to save the web page to your local computer via your web browser and then re-distribute those saved files as the "app." I'd expect lots of problems with this, though. For example, if you're dynamically loading different components in qooxdoo these scripts might not be saved. It's easy enough to try, though.
I am looking for Titanium Appcelerator alternatives for Desktop application development with HTML and JavaScript. I want to convert a web app to a desktop application. Hence, there will be a lot of server interaction. Appcelerator was a good choice, but it looks like the company is no longer interested in the Desktop SDK. Also, ajax request from Appcelerator does not retain cookies.
I read that Adobe Air can be used for desktop app development, but I don't want to use flash.
How good is XULRunner? Will it allow features like Growl notificaiton and creating tray icons?
Will I be able to develop applications using mostly Javascript and HTML in Qt?
I started looking into Titanium for desktop dev. I liked the concept but not the implementation. I then stumbled upon chromiumembedded and have been mostly very happy with it. It's basically a web browser control based on chromium.
http://code.google.com/p/chromiumembedded/
It's written in C++ so you can do all the low level OS stuff you want(Growl, tray icons, local file access, com ports, etc) in your container app, and then all the application logic and gui in html/javascript. It allows you to intercept any http request to either serve local resources or perform some custom action. For example, a request to http://localapp.com/SetTrayIconState?state=active could be intercepted by the container and then call the C++ function to update the tray icon.
It also allows you to create functions that can be called directly from javascript.
My biggest challenge has been debuging. It's very difficult to debug javascript directly in CEF. There's no support for anything like Firebug that I am aware of.
Appjs (appjs.org) looks very promising.
You could also check Bowline which is another alternative: http://bowlineapp.com/.
Although it's not officially intended for general-purpose use, a number of people have had success using brackets-shell for HTML/JS desktop apps. It embeds Chromium (CEF) and adds APIs for menu bar management and file IO. It also embeds an instance of Node.js so you get access to all its APIs for launching processes, etc. It's MIT-licensed and available for Mac & Win, with a Linux version currently making rapid progress.
As I mentioned, it's not officially a general-purpose app shell, but someone wrote a detailed blog post about how to customize brackets-shell for your own uses.
I notice that the other answer about Titanum says CEF is hard to debug. I'm not sure if that's true in Titanium, but in brackets-shell it's easy to debug JS – you just open http://localhost:9234/ to load a full instance of the Chrome Developer Tools (including breakpoints, profiling, etc.).
TideSDK is a continuation of the old Titanium desktop http://www.tidesdk.org/