ComfyUI_frontend

mirror of https://github.com/Comfy-Org/ComfyUI_frontend.git synced 2026-02-02 06:19:58 +00:00

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Alexander Piskun d1108867e2 feat(TextPreviewWidget): add minimal support for [[label|url]] links (#6482 )

## Summary

This PR adds a minimal, backward-compatible way to render **labeled
hyperlinks** in node text previews without enabling full Markdown
rendering.

The syntax is:
```
[[Label|https://example.com]]
```

Links open in a new tab and preserve the existing look and behavior of
the widget.

## Motivation

I first implemented a `Markdown`-based version that correctly rendered
`[label](url)` and other inline Markdown. After some consideration, I
have decided against shipping Markdown here because it risks breaking
existing custom nodes that already rely on
`PromptServer.instance.send_progress_text` with the current
`linkifyHtml` --> `nl2br` behavior. The token approach is **smaller**,
safer, and avoids surprises.

## Changes

* No global behavior change.
* No new dependencies.
* Token parsing is opt-in. If a node does not emit `[[label|url]]`,
behavior is unchanged.

## ComfyUI backend changes

PR to ComfyUI with these will come later(as first version of ComfyUI
with these frontend changes should be released), and it will contain:

```python
def _display_text(
    node_cls: type[IO.ComfyNode],
    text: Optional[str],
    *,
    status: Optional[Union[str, int]] = None,
    price: Optional[float] = None,
    results: Optional[Union[list[str], str]] = None,
) -> None:
    display_lines: list[str] = []
    if status:
        display_lines.append(f"Status: {status.capitalize() if isinstance(status, str) else status}")
    if price is not None:
        display_lines.append(f"Price: ${float(price):,.4f}")
    if results:  # New code starts
        if isinstance(results, str):
            display_lines.append(f"Result link: [[1|{results}]]")
        elif len(results) == 1:
            display_lines.append(f"Result link: [[1|{results[0]}]]")
        else:
            links = ", ".join(f"[[{i}|{u}]]" for i, u in enumerate(results, start=1))
            display_lines.append(f"Result links: {links}")  # New code ends
    if text is not None:
        display_lines.append(text)
    if display_lines:
        PromptServer.instance.send_progress_text("\n".join(display_lines), get_node_id(node_cls))
```        

## Screenshots (if applicable)

<img width="692" height="716" alt="Screenshot From 2025-10-31 13-12-54"
src="https://github.com/user-attachments/assets/619b5f70-550c-442f-9cd9-05a95270e533"
/>

<img width="732" height="714" alt="Screenshot From 2025-10-31 13-14-15"
src="https://github.com/user-attachments/assets/836ff87b-a2ac-45ba-842c-b0a4af91c7de"
/>

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-6482-feat-TextPreviewWidget-add-minimal-support-for-label-url-links-29d6d73d365081e9ac97dd7f41e85d8f)
by [Unito](https://www.unito.io)

2025-11-01 01:00:56 -07:00