`Progress`¶

Show determinate completion with a native progress element.


Import	`from hedron import Progress`
Distribution	`hedron`
Backend activity	No
Normal render mode	`RenderMode.FRAGMENT`

Live demo¶

Import progress68%68%

The preview is a local docs simulation (not a running Hedron server). Interactive demos show a “Simulated HTMX” trace when applicable.

Basic use¶

from hedron import Progress

component = Progress(68, maximum=100, label='Import progress')

Compose under Page for full documents, or return from a fragment route for HTMX swaps.

How it works¶

The browser calculates completion from value and maximum and exposes native progress semantics. Render a separate numeric Text value when precise percentage matters visually.

This component's core behavior is server-rendered HTML and does not require a browser runtime. The preview is ordinary semantic HTML, so keyboard, form, link, and disclosure behavior comes from the platform.

Constructor and parameters¶

Progress(value, *, maximum=100, label=None)

Parameter	Type	Meaning
`value`	`float`	Current progress.
`maximum`	`float`	Completion value.
`label`	`str \| None`	Accessible name.

Composition and backend behavior¶

Keep Progress at the smallest semantic boundary. Fragment routes should return only the replaced region and preserve stable target IDs across success, validation, empty, loading, and error responses.

This component is primarily presentational; keep any mutation on an explicit action or component route.

Accessibility¶

Always provide a label unless nearby labelled context names the progress element.

Security¶

Escaping and SafeUrl / TrustedHtml are framework concerns; authorization and data exposure remain application code. Redact secrets before rendering.

Common mistakes¶

Use Loading or Status for indeterminate work; do not fake determinate values.
Do not copy docs-preview JavaScript into an application server.

Testing¶

from hedron import RenderMode, render

result = render(component, mode=RenderMode.FRAGMENT)
assert result.html
assert not result.diagnostics

All component demos · Built-in API · Testing

Progress¶