reiern70 opened a new issue, #1635:
URL: https://github.com/apache/wicket/issues/1635
Wicket has no general-purpose progress bar. UploadProgressBar is tied to
file uploads, so applications that need to show the progress of some work (a
background job, an import, a multi-step process) each build their own markup
and CSS.
This proposes org.apache.wicket.extensions.markup.html.progress.ProgressBar,
a small CSS-only component:
- Model: an IModel<? extends Number> holding a percentage. Values are
rounded and clamped to 0–100, and null counts as 0.
- Markup: attached to a <div>. It renders a filled part sized to the
percentage and a label such as 42%. Existing class attributes on the tag are
kept.
- Accessibility: the element gets role="progressbar" with
aria-valuemin="0", aria-valuemax="100" and aria-valuenow.
- Styling: the look comes from wicket-progress-bar.css, contributed by the
component. It uses the classes wicket-progress-bar, wicket-progress-bar-value
and wicket-progress-bar-label, so applications can restyle it. A CSS transition
animates width changes.
- Updating: the component re-renders like any other, so
target.add(progressBar) in an Ajax or web socket request updates it.
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