Files
meadows/src/components/LoopOverlay.vue
Julien Calixte bc90a9bca9 fix(editor): keep loop badges on nodes while dragging
Badge centroids now read Vue Flow's live computedPosition instead of the
store, which commits positions only on drop — so badges no longer lag a
node drag. Centres use real node dimensions, dropping the hard-coded nudge.
2026-06-20 09:42:37 +02:00

102 lines
3.3 KiB
Vue

<script setup lang="ts">
/**
* Loop overlay (C11, ADR-0001) — an R/B badge floating at each detected loop's
* centre, Reinforcing in green and Balancing in amber. Loops are derived live
* from the wiring (store getter), so badges appear, vanish and reclassify as you
* wire, toggle polarity, or delete. Hovering a badge lights up that loop's nodes
* and links via the shared highlight.
*
* Badges live in screen space: each loop's centroid (the mean of its nodes'
* live centres, read straight from Vue Flow) is mapped through the viewport
* transform, so a badge tracks pan, zoom, and dragging a member node — the store
* only commits positions on drop, so reading it would lag a drag. Colliding
* badges are stacked so overlapping loops stay legible (the cost of on-canvas
* badges).
*/
import { useVueFlow } from "@vue-flow/core"
import { computed } from "vue"
import { useLoopHighlight } from "@/composables/useLoopHighlight"
import type { Loop } from "@/model/loops"
import { useModelStore } from "@/store/model"
const store = useModelStore()
const { viewport, getNodes } = useVueFlow("meadows")
const { highlight, clear } = useLoopHighlight()
const nameOf = computed(() => {
const map = new Map<string, string>()
for (const node of store.model.nodes) if (node.kind !== "cloud") map.set(node.id, node.name)
return map
})
interface Badge {
loop: Loop
x: number
y: number
}
const badges = computed<Badge[]>(() => {
// Live node centres from Vue Flow (computedPosition updates during a drag).
const centres = new Map(
getNodes.value.map((n) => [
n.id,
{
x: n.computedPosition.x + n.dimensions.width / 2,
y: n.computedPosition.y + n.dimensions.height / 2,
},
]),
)
const { x: vx, y: vy, zoom } = viewport.value
const placed: Badge[] = []
for (const loop of store.loops) {
let sx = 0
let sy = 0
let count = 0
for (const id of loop.nodeIds) {
const c = centres.get(id)
if (c) {
sx += c.x
sy += c.y
count++
}
}
if (count === 0) continue
const x = (sx / count) * zoom + vx
let y = (sy / count) * zoom + vy
while (placed.some((b) => Math.abs(b.x - x) < 26 && Math.abs(b.y - y) < 26)) y += 26
placed.push({ loop, x, y })
}
return placed
})
function title(loop: Loop): string {
const kind = loop.type === "R" ? "Reinforcing" : "Balancing"
const names = loop.nodeIds.map((id) => nameOf.value.get(id) ?? "·").join(" → ")
return `${kind} loop · ${names}`
}
</script>
<template>
<div class="pointer-events-none absolute inset-0 overflow-hidden">
<button
v-for="badge in badges"
:key="badge.loop.id"
class="pointer-events-auto absolute flex size-6 -translate-x-1/2 -translate-y-1/2 items-center justify-center rounded-full border text-xs font-bold shadow transition-transform hover:scale-125"
:class="
badge.loop.type === 'R'
? 'border-success/60 bg-success text-success-content'
: 'border-warning/60 bg-warning text-warning-content'
"
:style="{ left: `${badge.x}px`, top: `${badge.y}px` }"
:title="title(badge.loop)"
@mouseenter="highlight(badge.loop)"
@mouseleave="clear()"
@focus="highlight(badge.loop)"
@blur="clear()"
>
{{ badge.loop.type }}
</button>
</div>
</template>