Files
tianshu-engine/src/components/HotspotLayer.vue

145 lines
3.3 KiB
Vue

<script setup lang="ts">
import { ref, computed, onMounted, onUnmounted } from 'vue'
import type { Hotspot } from '@engine/types'
import { useI18n } from '@/composables/useI18n'
const props = defineProps<{
hotspots: Hotspot[]
isImageScene: boolean
imageUrl?: string | null
contentSize?: { w: number; h: number } | null
}>()
const { t } = useI18n()
const emit = defineEmits<{
clickHotspot: [hotspotId: string]
}>()
const layerRef = ref<HTMLDivElement | null>(null)
const layerW = ref(window.innerWidth)
const layerH = ref(window.innerHeight)
function measure() {
if (layerRef.value) {
layerW.value = layerRef.value.clientWidth
layerH.value = layerRef.value.clientHeight
} else {
layerW.value = window.innerWidth
layerH.value = window.innerHeight
}
}
let resizeObs: ResizeObserver | null = null
onMounted(() => {
measure()
resizeObs = new ResizeObserver(() => measure())
if (layerRef.value) resizeObs.observe(layerRef.value)
window.addEventListener('resize', measure)
})
onUnmounted(() => {
resizeObs?.disconnect()
window.removeEventListener('resize', measure)
})
interface Rect {
left: string
top: string
width: string
height: string
}
const hotspotRects = computed<Rect[]>(() => {
const cw = layerW.value
const ch = layerH.value
const cs = props.contentSize
if (!cs || !cs.w || !cs.h) {
return props.hotspots.map((hs) => ({
left: `${(hs.x / (cs?.w || 1)) * 100}%`,
top: `${(hs.y / (cs?.h || 1)) * 100}%`,
width: `${(hs.width / (cs?.w || 1)) * 100}%`,
height: `${(hs.height / (cs?.h || 1)) * 100}%`,
}))
}
const scale = Math.min(cw / cs.w, ch / cs.h)
const renderW = cs.w * scale
const renderH = cs.h * scale
const ox = (cw - renderW) / 2
const oy = (ch - renderH) / 2
return props.hotspots.map((hs) => ({
left: `${ox + hs.x * scale}px`,
top: `${oy + hs.y * scale}px`,
width: `${hs.width * scale}px`,
height: `${hs.height * scale}px`,
}))
})
</script>
<template>
<div ref="layerRef" class="hotspot-layer" v-if="(hotspots.length > 0) || (isImageScene && imageUrl)">
<img v-if="isImageScene && imageUrl" :src="imageUrl" class="hotspot-image" />
<div
v-for="(hs, i) in hotspots"
:key="hs.id"
class="hotspot-rect"
:style="hotspotRects[i] as any"
@click.stop="emit('clickHotspot', hs.id)"
:title="t(hs.labelKey || hs.label)"
>
<span class="hotspot-label">{{ t(hs.labelKey || hs.label) }}</span>
</div>
</div>
</template>
<style scoped>
.hotspot-layer {
position: absolute;
inset: 0;
z-index: 8;
pointer-events: none;
}
.hotspot-image {
position: absolute;
inset: 0;
width: 100%;
height: 100%;
object-fit: contain;
}
.hotspot-rect {
position: absolute;
border: 2px solid rgba(255, 255, 255, 0.4);
background: rgba(255, 255, 255, 0.06);
border-radius: 4px;
cursor: pointer;
pointer-events: auto;
transition: background 0.15s, border-color 0.15s;
display: flex;
align-items: center;
justify-content: center;
}
.hotspot-rect:hover {
background: rgba(255, 255, 255, 0.2);
border-color: rgba(255, 255, 255, 0.8);
}
.hotspot-label {
font-size: 13px;
color: #fff;
background: rgba(0, 0, 0, 0.65);
padding: 3px 10px;
border-radius: 3px;
white-space: nowrap;
text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
pointer-events: none;
}
</style>