ShrinkVertically/README.md

# ShrinkVertically -- keep the board horizontal scrollbar visible

A tiny Kanboard plugin that fixes the vertically-collapsed board view so the bottom
horizontal scrollbar stays on screen.

## The problem

Kanboard's board gear menu has an "expand vertically / collapse vertically" toggle. When
collapsed, each column gets a limited height so the horizontal scrollbar sits closer.
Core implements this with a single rule:

```css
.board-task-list-compact { max-height: 90vh; }
```

That `90vh` is measured from the top of the viewport and does not account for the page
header above the board. So even when collapsed, the column plus the header together
exceed the viewport height and the horizontal scrollbar is pushed below the fold.

## The fix

This plugin injects one CSS rule (via the `template:layout:css` hook) that replaces the
proportional `90vh` with a fixed-pixel budget for the chrome above and below the task
list:

```css
#board td .board-task-list.board-task-list-compact {
    max-height: calc(100vh - 240px) !important;
}
```

The `240px` reserves room for the page header, the board column header, the horizontal
scrollbar, and a little breathing space. A fixed-pixel budget is more reliable than a
proportional value because that chrome is a fixed height regardless of screen size.

The override only applies while columns are collapsed (when core adds the
`board-task-list-compact` class). It changes no data and runs no database migration.

## Menu labels

So it is obvious the collapsed behaviour comes from this plugin and not from core, a
small script (via `template:layout:js`) appends a `+` to the two gear-menu items, so they
read "Collapse vertically+" and "Expand vertically+". It only edits the rendered link
text, so it works in any locale.

## Requirements

- Kanboard >= 1.2.0

## Installation

Copy this folder into your Kanboard installation as `plugins/ShrinkVertically/`. The
directory name must be exactly `ShrinkVertically` (Kanboard derives the plugin namespace
from the folder name). Reload the board; no build step, no configuration.

## Tuning

Edit the single `240px` value in `Asset/css/shrink-vertically.css`. Increase it if the
scrollbar is still clipped (for example with a taller theme header); decrease it to make
the collapsed columns taller.

## License

AGPL-3.0. See LICENSE.