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https://issues.apache.org/jira/browse/TAPESTRY-975?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Matt Raible reopened TAPESTRY-975:
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In 4.1.3, when I have a label:
<label class="desc" jwcid="@FieldLabel"
field="component:usernameField">Username</label>
The following doesn't work to produce <label class="desc error">
@Override
public void writeLabelAttributes(IMarkupWriter writer, IRequestCycle cycle,
IFormComponent component) {
if (isInError()) {
writer.appendAttribute("class", "error");
}
}
Nor does writer.attribute:
@Override
public void writeLabelAttributes(IMarkupWriter writer, IRequestCycle cycle,
IFormComponent component) {
if (isInError()) {
writer.attribute("class", "error");
}
}
> 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
>
>
> 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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