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https://issues.apache.org/jira/browse/TAPESTRY-975?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matt Raible updated TAPESTRY-975:
---------------------------------
Attachment: ValidationDelegate.java
It seems that having a "class" attribute causes writer.attribute and
writer.appendAttribute to not work. Here's my Tapestry code:
<li>
<label class="desc" jwcid="@FieldLabel"
field="component:usernameField">Username</label>
<input jwcid="usernameField" type="text" id="username" class="text
large"/>
</li>
This produces the following when there's an error (notice no new classes in the
"class" attribute):
<li>
<label for="username" class="desc">Username<span class="req">
*</span></label>
<span class="fieldError"><img src="/images/iconWarning.gif"
class="validationWarning" alt="Warning"></img> You must enter a value for
Username.</span><input type="text" name="username" value="" id="username"
class="text large" />
</li>
The extra HTML is because I've overridden the "writePrefix" method.
If I remove the "class" attributes of <label> and <input>, it seems to work
properly:
<li>
<label jwcid="@FieldLabel"
field="component:usernameField">Username</label>
<input jwcid="usernameField" type="text" id="username"/>
</li>
Produces the following when there's an error:
<li>
<label for="username" class="error">Username<span class="req">
*</span></label>
<span class="fieldError"><img src="/images/iconWarning.gif"
class="validationWarning" alt="Warning"></img> You must enter a value for
Username.</span><input type="text" name="username" value="" id="username"
class="fieldMissing" />
</li>
I've attached my ValidationDelegate.java class.
> Overriding ValidationDelegate and adding a "class" attribute results in
> duplicate attributes
> --------------------------------------------------------------------------------------------
>
> Key: TAPESTRY-975
> URL: https://issues.apache.org/jira/browse/TAPESTRY-975
> Project: Tapestry
> Issue Type: New Feature
> Components: Framework
> Affects Versions: 4.0.2
> Reporter: Matt Raible
> Assignee: Jesse Kuhnert
> Fix For: 4.1.1
>
> Attachments: ValidationDelegate.java
>
>
> I have the following in my custom ValidationDelegate:
> public void writeAttributes(IMarkupWriter writer, IRequestCycle cycle,
> IFormComponent component, IValidator
> validator) {
> if (isInError()) {
> String cssClass = ((component.getBinding("class") != null) ?
>
> component.getBinding("class").getObject().toString() : "");
> writer.attribute("class", cssClass + " error");
> }
> }
> However, rather than just writing a single "class" attribute, it writes two:
> class="text large error" class="text large"
> Ideally, only one "class" attribute gets written. Maybe IMarkupWriter nees
> an appendAttribute() method, or it just needs to be smart enough to detect
> duplicates?
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