I have links and pictures related to these links on my page. I want to change the pictures everytime when onmouseover event occurred in the links. I want to do this in JSF.
A lot of Thanks to everyone.
You are looking specifically for JSF to do it, or you are open to other Javascript frameworks that provide a slick and easy solution on this? For example Jquery and Dojo etc may be easy to incorporate in your application and will give Rich UI effects.
On the other hand if you are looking at JSF specifically for these UI effects than probably I can try to think of some ways and let you know.
JSF isn't designed directly to do this; It's designed to give you the tools to do this yourself. In order to do this you would need to create a custom JSF component to do this and you would use Java script to do it.
You could possibly find a JSF framework that does this already (a4j, IceFaces, etc.) but this is such a simple and well documented JavaScript thing that just tossing a little Java script among your JSF is perfectly acceptable. However, if you don't want to reinvent the wheel, take a look at those other options.
Javascript solution:
Define onmouseover event on the commandLink tag calling some kind of javascript you may give link address from like onmouseover="doSomething('addressOfImage')" then in doSomething javascript method, first find the image, then set src attribute of a default image to given address.
JSF Solution:
You might want to use a4j for this.
Add a4j:support to link for onmouseover event then just rerender graphicImage component ofcourse you need to give value of graphicImage dynamically. There is an example of using a4j support below. You can add this a4j:support between your link tags for mouseonover event. Then manage everything on backing bean to handle which image to be displayed.
example
<h:graphicImage id="imageToBeRendered" value="#{myBean.imageAddress}"/>
Just google a4j if you have no idea.
Related
I am working on something like this:
A JSF template has a side-navigation bar which contains links(either anchor or h:outputLink), and there are cases where two options lead to the same link(page), but with a different value in view parameter, and thus rendering different data being displayed on the page.
Is there a way to do this? Using commandLink or commandButton does not seem like an option to me since it will mess up the styling.
Thanks in advance.
An output link is just a normal HTML link, so a conventional way to do this is with a query parameter, e.g. /contentarea.xhtml?myparam=value.
I don't think you should bind a method to the output link. That would involve a Javascript onclick handler (commandLink), and I don't think that's necessary here. That said, I'm surprised you say commandLink messes with the styling, as it renders a normal HTML link.
See also
http://incepttechnologies.blogspot.ca/p/view-parameters-in-jsf-20.html (see the first technique using f:viewParam)
http://www.mkyong.com/jsf2/jsf-2-link-commandlink-and-outputlink-example/
I want to pop up a new window when clicking on a link in order to go to an external URL outside my project, let's say www.google.com, problem is that when ever I try to do this using h:link or p:commandLink the outcome is searched on my project pages, and of course, I get an error. Is there a way to do this? I don't want to use simple HTML tag because i need to use the property rendered JSF and Pf provides me. Thanks!
I have another Richfaces question which may seem rather weird. I am developing a web-based application, using Richfaces for a front-end, that allows users to create templates for certain documents. For example: the user is presented with a rich:editor component, which, perhaps, has certain text already typed in, but it also has an input for a date, or specific text. The date can be entered in rich:calendar, the text can be entered in rich:inplaceInput, but the main idea is to be able to place those components INSIDE the rich:editor. I was trying to find an example where it's used and couldn't. So, my question is: is it even possible? Can you place RichFaces components (and, maybe, Seam components) into rich:editor? If not, is there a something similar out there that allows the user to do this? Can Seam do that? The reason I'm asking about Seam is because it appears to have some template-friendly logic and can work along with JSF and Richfaces.
Thanks for your help
Essentially your asking if you can add HTML elements to a textarea tag, and have them work. Unfortunately, no you can't.
What I've done in the past for such things has been to either weave boilerplate text, with inplaceInput, and free form text areas, or to simply provide the needed fields above/beside/below the editor.
I want the below look and feel functionality in jsf?
http://livedemo.exadel.com/richfaces-demo/richfaces/componentControl.jsf#
If you go to the above url code,
When you click on View Source link , how it shows?
and in the same way, when you click on hide link, it hides the code.
I want that same look and feel in my project...
How is it be done? How to achieve it in jsf?
If you are using RichFaces, you can use the <rich:effect> tag component which uses Scriptaculous. This is a js framework who enables to add effects in pages. In the example above, the effects used are Effect.SlideDown and Effect.SlideUp (sorry for not placing the link here, but as a new user I can just post a max of two hyperlinks). If you are not using RichFaces, you can still add the js libraries to your web project and use them to add these great effects.
I have a form which one of it's fields is a code and description, also a button for opening a popup window that contains a list of all of the available codes.
when the user double clickes a row from that table i want to set these values to the code and description. - how can this be done?
Another question, I want to create this popup and table to be initialized dynamically - by that i mean that if i have a few forms in my application, when ever i have a field which has a description i want to be able to open this popup and to see the available list for that field. (every field can be from a diffrent table). is it possible to create something like that? if so, how?
Any help will be appritiated,
Thank's In Advance.
Yes, it is possible. Even more, many component libraries have ready to use popup/dialog components, such as RichFaces with <rich:popupPanel> and PrimeFaces with <p:dialog>.
If you do not want to use a component library for some reason, you would need to create a custom component for this which generates basically an absolutely positioned HTML <div> element with a CSS overlay which get shown/hidden by JS on a particular click/action. The HTML/CSS/JS part should be relatively simple if you are familiar with those languages. The JSF part is somewhat hard if you have never created a custom component before, but it should be possible with a composite component as well, so you could also just create one with pure XHTML. The updating/refreshing can just take place by the usual <f:ajax> means.