jaeone94 b157182a20 refactor: inline node footer layout to fix selection bounding box (#10741) ...

## Summary

Refactor node footer from absolute overlay to inline flow layout, fixing
the selection bounding box not encompassing footer buttons and collapsed
node dimensions.

## Background

The node footer (Enter Subgraph, Advanced, Error buttons) was rendered
as an absolute overlay (`absolute top-full`) outside the node body. This
caused:

1. **Selection bounding box** did not include footer height — the dashed
multi-select border cut through footer buttons
2. **Footer offset compensation** required 3 hardcoded computed classes
(`footerStateOutlineBottomClass`, `footerRootBorderBottomClass`,
`footerResizeHandleBottomClass`) with magic pixel values (31px, 35px,
etc.) that had to stay in sync with CSS

## Solution: Inline Footer with `isolate -z-1`

The footer is moved into normal document flow (no longer `absolute
top-full`). The key challenge was keeping the footer visually behind the
body's rounded bottom edge (the "tuck under" effect) without adding
`z-index` to the body — because adding `z-index` to the body creates a
stacking context that traps slot connection dots, making them appear
behind overlay borders.

The solution uses CSS `isolation: isolate` combined with `-z-1` on the
footer wrapper:

- **`isolate`** creates an independent stacking context for the footer,
so internal z-index (Error button `z-10` above Enter button) does not
leak to the parent
- **`-z-1`** places the entire footer behind the body (`z-index: auto`),
achieving the visual overlap without touching the body's stacking
behavior
- **Slot dots remain free** — the body has no explicit z-index, so slots
participate in the root stacking context and are never trapped behind
overlay borders

This eliminates all 3 footer offset computed classes and their hardcoded
pixel values.

## Selection Box: `min-height` on root + unified size path

Moving `min-h-(--node-height)` from the body (`node-inner-wrapper`) to
the root element makes the footer height naturally included in
`node.size` via ResizeObserver → layoutStore → litegraph sync. This
means `boundingRect` is automatically correct for expanded nodes — no
callbacks or overrides needed.

For collapsed nodes, a pre-existing issue (since v1.40) caused
`_collapsed_width` to fall back to `NODE_COLLAPSED_WIDTH = 80px` because
Vue nodes lack a canvas context for text measurement.

The fix lets collapsed dimensions flow through the **same**
`batchUpdateNodeBounds` path as expanded nodes — no parallel data
structure, no separate accessor, no cache:

1. ResizeObserver writes the collapsed DOM dimensions to
`layoutStore.size` via `batchUpdateNodeBounds`
2. `useLayoutSync` syncs `layoutStore.size` → `liteNode.size` as it does
for any other size change
3. The expanded size survives the collapse→expand round trip via CSS
custom properties — the `isCollapsed` watcher in `LGraphNode.vue` swaps
`--node-width` to `--node-width-x` on collapse and restores it on expand
4. `measure()` reads `this.size` directly for Vue collapsed nodes via a
one-line gate: `if (!this.flags?.collapsed || LiteGraph.vueNodesMode)`.
Legacy behavior is unchanged.

## Changes

- **NodeFooter.vue**: `absolute top-full` overlay → inline flow with
`isolate -z-1` wrappers, Error/Enter button layering via `-mr-5` + DOM
order, reactive props destructuring, static `RADIUS_CLASS` lookup for
Tailwind scanning, Vue 3.3+ `defineEmits` property syntax
- **LGraphNode.vue**: Move `min-h-(--node-height)` from body to root;
remove `footerStateOutlineBottomClass`, `footerRootBorderBottomClass`,
`footerResizeHandleBottomClass`, `hasFooter` computed; replace dynamic
`beforeShapeClass` interpolation with static
`bypassOverlayClass`/`mutedOverlayClass` computeds for Tailwind scanning
- **LGraphNode.ts**: `measure()` collapsed branch gated by `||
LiteGraph.vueNodesMode` — Vue mode defers to `this.size`; legacy path
unchanged
- **useVueNodeResizeTracking.ts**: Collapsed and expanded nodes both
flow through `batchUpdateNodeBounds`; narrowed `useVueElementTracking`
parameter from `MaybeRefOrGetter<string>` to `string`;
`deferredElements.delete(element)` on unmount to prevent memory
retention
- **selectionBorder.ts**: Unchanged — `createBounds` just works because
`boundingRect` is now correct
- **12 parameterized E2E tests**: Vue mode (subgraph/regular ×
expanded/collapsed × bottom-left/bottom-right) + legacy mode
(expanded/collapsed × bottom-left/bottom-right), driven by
`keyboard.collapse()` (Alt+C)
- **Unit tests**: `measure()` branching (legacy fallback, Vue
`this.size` usage, expanded parity)
- **Shared test helpers**: `repositionNodes`, `KeyboardHelper.collapse`,
`measureSelectionBounds`, `assertSelectionEncompassesNodes`

## Review Focus

- `isolate -z-1` CSS layering pattern — is this acceptable long-term?
- `measure()` collapsed branch gated on `LiteGraph.vueNodesMode` —
one-line gate to avoid the canvas-ctx-less fallback in Vue mode
- Footer button overlap design (`-mr-5` with DOM order for painting)

## Screenshots
<img width="1392" height="800" alt="image"
src="https://github.com/user-attachments/assets/abaebff5-bb8c-4b5b-8734-8d44fdee4cb9"
/>
<img width="1493" height="872" alt="image"
src="https://github.com/user-attachments/assets/6b9c77f9-e3ae-4d4e-81dc-acfa9a24c768"
/>
<img width="813" height="515" alt="image"
src="https://github.com/user-attachments/assets/ce15bafb-e157-408c-971b-a650088f316a"
/>
<img width="1031" height="669" alt="image"
src="https://github.com/user-attachments/assets/20fdc336-4bc2-4d47-ab7e-c0cbcee0d150"
/>
<img width="753" height="525" alt="image"
src="https://github.com/user-attachments/assets/2dccbe31-7d18-49bc-9ed4-158b1659fddf"
/>
<img width="730" height="370" alt="image"
src="https://github.com/user-attachments/assets/ab87edfa-a4b4-46f7-86ae-4965a4509b42"
/>
<img width="1132" height="465" alt="image"
src="https://github.com/user-attachments/assets/54643f5b-4a31-4c3d-9475-c433f87aedb0"
/>
<img width="1102" height="449" alt="image"
src="https://github.com/user-attachments/assets/9c045df3-e1f5-481e-b1cb-ead1db1626f5"
/>

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Co-authored-by: github-actions <github-actions@github.com>

2026-04-19 04:58:34 +00:00

..

subgraph-with-regular-node.json

refactor: inline node footer layout to fix selection bounding box (#10741)

2026-04-19 04:58:34 +00:00