I have an EJB 2.1 Project (Actually, it must be migrated into EJB 3.1 :-)) Currently it supports only one window. it means the user should work on a window. It is because of the variables, used as session variables. (Last Search Criteria, last used id, etc...).
I want to make it possible to open two or more tabs in for example Firefox and work parallel. If the user is on the same tab, the variables should be kept only for that tab. Only global variables can be valid for all tabs.
How can i approach to this problem.??
Any documentation to understand multiwindow will be also helpful.
Or any other idea or experiences about multiwindow web project is also welcome.
There isn't any built-in way to deal with this in either browsers or any EJB that I am aware of. Other web app frameworks have the concept of Web Flows that are series of connected actions that can handle multiple flows in different tabs of the same browsers, so you may wish to start looking there.
In a nutshell, they create their own "cookies" that the application controls, not the browser itself. These "application cookies" are then used to stash chunks of information related to the current set of operations, much like a session.
These sorts of things are often kicked off by the user clicking a link that opens in a "new window" (or tab) that notifies the application (via a page hit or an ajax call) that a new "work session" is being opened and gets the inner-session set up.
Related
I've been trying to research for existing web browsers that do not have an address bar or additional controls on the UI. Ideally a web browser that has just the window frame. The reason is that I am writing a web application, which ideally I do not want the user to have the ability to navigate to other websites or have the ability to navigate backwards/forwards etc. Obviously I can write additional code that can prevent people from navigating other side/ backwards, etc, but ideally would like a clean Window for the user to work from.
So far i've explored the option of building a web browser UI using JavaFX. However the web application is built using Angular and the JavaFX web browser window flickers from time to time during a screen transition.
If there is anyone that can provide a recommendation of such a browser that would be greatly appreciated. Thanks.
Just curious if you have already looked into Kiosk modes for browsers as that is built in and meant to display a single website. If chromium has that then could could use that.
Chromium kiosk mode no address bar or menu
Edit:
https://github.com/chromium/chromium
I'm experiencing abnormal behaviour in ajax-related clicks in two Wicket Applications that both run on the same localhost on different ports (both served by Jetty)
I have two applications open in two tabs in Chrome. When I click on an AjaxLink in one of the applications, it sometimes works and sometimes does nothing (or something in the other Wicket tabs, as I see the tab title doing something).
This leads to undesired behaviour, as the links no longer work as required.
What can I do to prevent this interaction between tabs?
I now use this:
this.getServletContext().getSessionCookieConfig().setName( applicationCookieName )
And change the applicationCookieName per application, that seems to prevent it.
It is probably caused by the JSESSIONID being shared by default, as can written in this answer: https://stackoverflow.com/a/5646933/461499
I am developing an e-commerce web application, and in that ads from other giants pop up. I figured out that this is done by PriceFountain, which is actually a spyware. I found the steps to remove that from my laptop. more found here.
but the problem is my clients can also have this adware. I want to programmatically do following or either of them, on the client side:: (and if it is not possible at least inform the user to do so)
If, PriceFountain is present, uninstall it from their system. If it is an add-on, remove that.
Activate the pop-up blocker (deactivation can be achieved through javascript and jquery). But I want to activate. My site does not need pop-ups.
Alter the registry of user for the contents of PriceFountain.
I know this is somewhat an unethical hack, but can this be achieved and if so, how?
More of that, it is just my curiosity can we affect client site settings.?
You used to be able to do that (with jscript/vbscript) in IE if and only if the user added your site to his trusted sites (and allowed pretty much everywhere there), or if it was the intranet-site with relaxed permissions.
Back in the old day's I had such a thing for the intranet-help-site where users could browse through the faq and click on the 'execute solution' button for the common 'problems' (previously solved and added to DB).
For rather obvious security-reasons this is no longer the case (although one can still pull some stuff in legacy IE environments).
The point is: you can't do this on other browsers then IE (unless maybe you'd develop separate plug-ins for them and ask your users to install something that will essentially give you access to their whole machine). Realize that effectively what you are asking for is a way to fully control the user's machine. Would you install such a browser (on your parents pc)?
The best course of action would be to face-up, inform your users on your main-website (enter-page) that something bad spread throughout an ad-network and guide them through the steps (that you already found) necessary to relieve them from their problem.
Even if what you asked was possible, you'd still need the user's cooperation somewhere along the way, even if you'd were to write an application for this that the users could download and run (administrative/elevated)..
Good Luck!
EDIT: for the registry you might try something with the answers in this question: read/write to Windows Registry using Java
Still, you'd still need the user's co-operation.
I've been pondering over this problem most the afternoon and haven't yet found the most ideal solution so thought I would see what others think..
There is a legacy Win16 application that has to be modified (with the least effort) in order to communicate with a web based application.
The idea is such that in the Win16 app, the user will want to look up a specific code, so they'll click a button which will then launch the browser and allow them to navigate a specific set of pages until they find the result they desire, then they have the option of either pressing Select or Cancel.
Pressing Select should pass back a small string back to the app (around 10 characters) and close the browser. Cancel will likewise send a Cancel message back to the app and again close the browser window.
I can't see many choices available in implementation as the Win16 app is not able to call webservices, so I'm looking at using the clipboard, however that is not without problems.
I hope there's some other alternative I haven't thought of,
As always - all advice appreciated.
Thanks,
I've implemented an interactive map applet, which is embedded in a web application. The application uses some Ajax, but has a predominantly page based structure.
The problem is, navigating away from and back to the page containing the applet causes an applet reload, which takes several seconds.
Possible ways to alleviate this problem I thought of are:-
Make the applet run continuously in a separate browser window (I lose integration with the main web app though)
Convert the web app to use Ajax exclusively to avoid page reloads
Implement the map view as a standalone desktop app
If there is some way of preventing applet reloads in the browser I would be very interested to hear about it, but I don't think this is possible due to the applet lifecycle.
I think that you enumerated all options, their advantages and disadvantages.
I'd like to suggest you a combination of options you suggested.
You can separate you applet into 2 components. First, heavy-weight application that will be started using a java web start. It will contain all application logic and will run in minimized (or even transparent) window. It will prepare image and send it via network to light-weight applet that just shows it.
I this case you do not loose your application integrity: map is shown in browser. The applet is very light weight, so it starts fast. The stand-alone app implements the most of programming logic.
Here is how to make window transparent: http://java.sun.com/developer/technicalArticles/GUI/translucent_shaped_windows/