forked from Mirrors/elk
106 lines
3.1 KiB
Vue
106 lines
3.1 KiB
Vue
<script setup lang="ts">
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import { SwipeDirection } from '@vueuse/core'
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import { useGesture } from '@vueuse/gesture'
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import type { PermissiveMotionProperties } from '@vueuse/motion'
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import { useReducedMotion } from '@vueuse/motion'
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import type { mastodon } from 'masto'
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const { media = [], threshold = 20 } = defineProps<{
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media?: mastodon.v1.MediaAttachment[]
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threshold?: number
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}>()
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const emit = defineEmits<{
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(event: 'close'): void
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}>()
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const { modelValue } = defineModel<{
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modelValue: number
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}>()
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const target = ref()
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const animateTimeout = useTimeout(10)
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const reduceMotion = process.server ? ref(false) : useReducedMotion()
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const canAnimate = computed(() => !reduceMotion.value && animateTimeout.value)
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const { motionProperties } = useMotionProperties(target, {
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cursor: 'grab',
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scale: 1,
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x: 0,
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y: 0,
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})
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const { set } = useSpring(motionProperties as Partial<PermissiveMotionProperties>)
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function resetZoom() {
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set({ scale: 1 })
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}
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watch(modelValue, resetZoom)
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const { width, height } = useElementSize(target)
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const { isSwiping, lengthX, lengthY, direction } = useSwipe(target, {
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threshold: 5,
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passive: false,
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onSwipeEnd(e, direction) {
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// eslint-disable-next-line @typescript-eslint/no-use-before-define
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if (direction === SwipeDirection.RIGHT && Math.abs(distanceX.value) > threshold) {
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modelValue.value = Math.max(0, modelValue.value - 1)
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resetZoom()
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}
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// eslint-disable-next-line @typescript-eslint/no-use-before-define
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if (direction === SwipeDirection.LEFT && Math.abs(distanceX.value) > threshold) {
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modelValue.value = Math.min(media.length - 1, modelValue.value + 1)
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resetZoom()
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}
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// eslint-disable-next-line @typescript-eslint/no-use-before-define
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if (direction === SwipeDirection.UP && Math.abs(distanceY.value) > threshold)
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emit('close')
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},
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})
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useGesture({
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onPinch({ offset: [distance, angle] }) {
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set({ scale: Math.max(0.5, 1 + distance / 200) })
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},
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onMove({ movement: [x, y], dragging, pinching }) {
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if (dragging && !pinching)
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set({ x, y })
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},
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}, {
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domTarget: target,
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eventOptions: {
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passive: true,
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},
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})
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const distanceX = computed(() => {
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if (width.value === 0)
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return 0
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if (!isSwiping.value || (direction.value !== SwipeDirection.LEFT && direction.value !== SwipeDirection.RIGHT))
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return modelValue.value * 100 * -1
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return (lengthX.value / width.value) * 100 * -1 + (modelValue.value * 100) * -1
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})
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const distanceY = computed(() => {
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if (height.value === 0 || !isSwiping.value || direction.value !== SwipeDirection.UP)
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return 0
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return (lengthY.value / height.value) * 100 * -1
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})
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</script>
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<template>
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<div ref="target" flex flex-row max-h-full max-w-full overflow-hidden>
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<div flex :style="{ transform: `translateX(${distanceX}%) translateY(${distanceY}%)`, transition: isSwiping ? 'none' : canAnimate ? 'all 0.5s ease' : 'none' }">
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<div v-for="item in media" :key="item.id" p4 select-none w-full flex-shrink-0 flex flex-col place-items-center>
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<img max-h-full max-w-full :draggable="false" select-none :src="item.url || item.previewUrl" :alt="item.description || ''">
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</div>
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</div>
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</div>
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</template>
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