I am working with SEAM - JSF framework
I have following a4j commandlink on my xhtml page.
<a4j:commandLink id="rateImage" action="#{ratingSessionAction.rateImage}" oncomplete="getNewImageForSlider();"/>
When i click on this link first time after clearing my browser history, i get following html
<?xml version="1.0"?>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<link class="component"
href="/abc/a4j/s/3_3_3.Finalorg/richfaces/renderkit/html/css/basic_classes.xcss/DATB/eAELXT5DOhSIAQ!sA18_"
rel="stylesheet" type="text/css" />
<link class="component"
href="/abc/a4j/s/3_3_3.Finalorg/richfaces/renderkit/html/css/extended_classes.xcss/DATB/eAELXT5DOhSIAQ!sA18_"
media="rich-extended-skinning" rel="stylesheet" type="text/css" />
<script
src="/abc/a4j/g/3_3_3.Finalorg.ajax4jsf.javascript.AjaxScript"
type="text/javascript">
</script>
<script
src="/abc/a4j/g/3_3_3.Finalorg/ajax4jsf/javascript/scripts/form.js"
type="text/javascript">
</script>
<script
src="/abc/a4j/g/3_3_3.Finalorg/richfaces/renderkit/html/scripts/skinning.js"
type="text/javascript">
</script>
</head>
<body>
<meta name="Ajax-Update-Ids" content="" />
<span id="ajax-view-state"><input type="hidden"
name="javax.faces.ViewState" id="javax.faces.ViewState"
value="" />
</span>
<meta id="Ajax-Response" name="Ajax-Response" content="true" />
<span id="org.ajax4jsf.oncomplete">getNewImageForSlider();</span>
</body>
</html>
I removed value from viewstate hidden field purposely to reduce the
length of post.
Can anybody explain me why this is happening, and how can overcome it.
Thanks in advance
Richfaces (a4j) is always returning you a complete html response. After the return it will use the ajax-update-id to split the response into parts and place them where you have the defined ids of your rerender attribute.
You are not specifing anything to rerender and because of that only your js should be executed oncomplete.
Either you can fetch a new image during the a4j request directly and use rerender (your page needs to be prepared for that with an img tag and a random src i suppose) or you gave to do this in your oncomplete callback and create a new img tag and place it yourself.
The second approach can be tricky because the server state will not be aligned in a next request assuming you are using conversations in seam for example
Related
I develop ASP.Net Core 2.1 RazorPages web application. I want parametrize the the value of asp-page tag helper.
So I use following code in cshtml file. There is a del_link local variable defined in begining of file. This variable is late used as parameter for second asp-page tag helper.
#page
#{
string del_link = "/UnloadDelete";
}
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
</head>
<body>
<div>
<a asp-page="/UnloadEdit">Details</a>
<a asp-page=#del_link>Delete</a>
</div>
</body>
</html>
ASP.Net Razor generate following HTML code.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
</head>
<body>
<div>
Details
Delete
</div>
</body>
</html>
As you can see in HTML code, asp-page="/UnloadEdit" is properly rendered to HTML code, but asp-page=#del not, it is rendered to <a href="">. How I can use local variable for asp-page tag helper in Razor Pages?
Thanks in advance.
You must pass a page name to the asp-page attribute. So what you are trying to do is not supported. If #del_link renders a relative URL, you can pass that to the href attribute instead. There may be other suitable solutions, depending on why you feel the need to use #del_link at all.
I have loaded javascript from Java call in xhtml file. When I opened the browser in debug mode( both IE and chrome) , javascripts are loading with .xhtml extensions.
Below is the code I am using
<h:head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title><ice:outputText nospan="true" value="#{msgs.loginTitle}" /></title>
<link href="../css/style.css" type="text/css" rel="stylesheet" />
<ice:outputText value="#{MyAction.javaScripts}" visible="false" />
</h:head>
Here JavaScripts is the methods and it returns String.
value="#{MyAction.javaScripts}" Return the below string
<script src="../js/myJs.js" type="text/javascript"></script>
But when I open the browser in debug mode my javascript is like abc.js.xhtml?xxx and some of the functions are not working. My questions are
1) Will java script work perfectly even if it is showing like this?
2) Is the Browser changing the extension or it is configuration issue?
Please help me
Javascript files should be included in your JSF .xhtml file by using either <h:outputScript> or <script>:
(referencing a script file named 'help.js' in the /js folder)
<h:outputScript library="js" name="help.js" />
or
(embedded script directly within the page)
<script type="text/javascript">
function sayHello(){
alert('Hello');
}
</script>
Using ufront and erazor I ran into the following problem very quickly.
The hello-world example provides the following layout:
<!DOCTYPE html>
<html lang="en">
<head>
<title>#title</title>
<meta charset="utf-8" />
<link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css" />
</head>
<body>
<div class="container">
#viewContent
</div>
</body>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js"</script>
</html>
For certain pages I want to add more headers or scripts after Jquery has been loaded.
One way to do so (for the scripts for example), would be to pass the scripts as an array of strings, and construct them on the layout file :
...
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js"</script>
#for(script in scripts) {
<script src='#script.path'></script>
}
</html>
....
The problem with this approach is that I can't keep meaningful headers + body + scripts on the same template file witch would be great, also needs extra care to pass the scripts and headers as context.
Some template engines like Razor or Laravel allow to do that using 'sections'.
Is it possible to do something similar with erazor? If not what would be a good alternative?
I'm using OmniFaces conditionalComment to load a javascript file for IE 6 browsers. On the webiste it says the script should be included in the page as:
<script type="text/javascript" src="[JS library]"></script>
<!--[if (gte IE 6)&(lte IE 8)]>
<script type="text/javascript" src="selectivizr.js"></script>
<noscript><link rel="stylesheet" href="[fallback css]" /></noscript>
<![endif]-->
This is not valid xml, so can't be used in the JSF xhtml files. Instead I use this:
<h:body>
<f:facet name="last">
<o:conditionalComment if="if (gte IE 6)&(lte IE 8)">
<h:outputScript library="js" name="selectivizr-min.js" target="head"/>
</o:conditionalComment>
</f:facet>
...
</h:body>
I include the script in the body part of the xhtml and put it in the facet name="last", so it is included after JQuery (I use PirmeFaces and read that's the safest way to do that). target="head" ensures that it is written to the head section of the resulting html file. The link to the script is included in the correct part of the document (after the PrimeFaces imports), but it is not surrounded by the conditional comments.
Here is the relevant part of the html (reformatted for easier reading):
<head>
<link type="text/css" rel="stylesheet" href="/javax.faces.resource/theme.css.xhtml?ln=primefaces-aristo" />
<link type="text/css" rel="stylesheet" href="/javax.faces.resource/primefaces.css.xhtml?ln=primefaces&v=5.1" />
<script type="text/javascript" src="/javax.faces.resource/jquery/jquery.js.xhtml?ln=primefaces&v=5.1"></script>
<script type="text/javascript" src="/javax.faces.resource/primefaces.js.xhtml?ln=primefaces&v=5.1"></script>
<script type="text/javascript" src="/javax.faces.resource/jquery/jquery-plugins.js.xhtml?ln=primefaces&v=5.1"></script>
<script type="text/javascript" src="/javax.faces.resource/omnifaces.js.xhtml?ln=omnifaces"></script>
<link type="text/css" rel="stylesheet" href="/javax.faces.resource/styles.css.xhtml?ln=css" />
<script type="text/javascript" src="/javax.faces.resource/selectivizr-min.js.xhtml?ln=js"></script>
The last line is missing the comments (!--[if (gte IE 6)&(lte IE 8)]> ...).
What am I doing wrong? Any suggestions?
Cheers,
Dominik
This problem is two-fold:
The <f:facet name="last"> makes no sense in this context. Get rid of it. It would be ignored including any of its children. It's only valid inside <h:head> (and even then only if you're using PrimeFaces; who actually overlooked the native JSF possibility to order head resources as last).
You can't use <h:outputScript> (nor <h:outputStylesheet> inside <o:conditionalComment>, because JSF will implicitly auto-relocate it to the <head>. This is also hinted in the documentation and showcase.
Just use plain vanilla <script> (or <link rel="stylesheet">).
<o:conditionalComment if="(gte IE 6)&(lte IE 8)">
<script src="#{resource['js/selectivizr-min.js']}" />
</o:conditionalComment>
Note that I fixed the invalid if attribute value by removing the duplicated if.
Unrelated to the concrete problem: The library="js" indicates a misunderstanding of the library attribute. Carefully read What is the JSF resource library for and how should it be used? The #{resource} resolver in above answer has already been altered to use js as regular folder instead of as library.
I am currently playing around with JSFs ClientBehavior API.
I want to create a client behavior that uses jQuery. Besides inclusion of the *.js files for jQuery another script will be required in the <head> section to bootstrap all the jQuery stuff i.e. create client side widgests.
I tried to follow this approach from victor herrera, but the component system event is never processed. I guess this is because ClientBehaviors do not inherit from UIComponent.
So my question is how to add dynamically created JS to the <head> of the rendered document.
This is what the rendered output in the end should look like:
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<script type="text/javascript">
$(document).ready(function () {
// Dynamically created stuff here
}
</script>
</head>
<body>
...
<input type="text" id="myJSFInputWithClientBehavior" onclick="doSomeStuffWithjQuery()" />
</body>
</html>