feat: add image preview swipe (#749)

zio/stable
wheat 2023-01-04 03:15:24 -05:00 committed by GitHub
parent 710511e589
commit 4354dd6a2e
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3 changed files with 91 additions and 36 deletions

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@ -1,32 +1,14 @@
<script setup lang="ts">
import { useImageGesture } from '~/composables/gestures'
const emit = defineEmits(['close'])
const img = ref()
const locked = useScrollLock(document.body)
// Use to avoid strange error when directlying assigning to v-model on ModelMediaPreviewCarousel
const index = mediaPreviewIndex
const current = computed(() => mediaPreviewList.value[mediaPreviewIndex.value])
const hasNext = computed(() => mediaPreviewIndex.value < mediaPreviewList.value.length - 1)
const hasPrev = computed(() => mediaPreviewIndex.value > 0)
useImageGesture(img, {
hasNext,
hasPrev,
onNext() {
if (hasNext.value)
mediaPreviewIndex.value++
},
onPrev() {
if (hasPrev.value)
mediaPreviewIndex.value--
},
})
// stop global zooming
useEventListener('wheel', (evt) => {
if (evt.ctrlKey && (evt.deltaY < 0 || evt.deltaY > 0))
evt.preventDefault()
}, { passive: false })
const hasNext = computed(() => index.value < mediaPreviewList.value.length - 1)
const hasPrev = computed(() => index.value > 0)
const keys = useMagicKeys()
@ -35,12 +17,12 @@ whenever(keys.arrowRight, next)
function next() {
if (hasNext.value)
mediaPreviewIndex.value++
index.value++
}
function prev() {
if (hasPrev.value)
mediaPreviewIndex.value--
index.value--
}
function onClick(e: MouseEvent) {
@ -49,30 +31,31 @@ function onClick(e: MouseEvent) {
if (!el)
emit('close')
}
onMounted(() => locked.value = true)
onUnmounted(() => locked.value = false)
</script>
<template>
<div relative h-full w-full flex pt-12 @click="onClick">
<div relative h-full w-full flex pt-12 w-100vh @click="onClick">
<button
v-if="hasNext" pointer-events-auto btn-action-icon bg="black/20" :aria-label="$t('action.previous')"
hover:bg="black/40" dark:bg="white/30" dark:hover:bg="white/20" absolute top="1/2" right-1
hover:bg="black/40" dark:bg="white/30" dark:hover:bg="white/20" absolute top="1/2" right-1 z5
:title="$t('action.next')" @click="next"
>
<div i-ri:arrow-right-s-line text-white />
</button>
<button
v-if="hasPrev" pointer-events-auto btn-action-icon bg="black/20" aria-label="action.next"
hover:bg="black/40" dark:bg="white/30" dark:hover:bg="white/20" absolute top="1/2" left-1
hover:bg="black/40" dark:bg="white/30" dark:hover:bg="white/20" absolute top="1/2" left-1 z5
:title="$t('action.prev')" @click="prev"
>
<div i-ri:arrow-left-s-line text-white />
</button>
<img
ref="img"
:src="current.url || current.previewUrl"
:alt="current.description || ''"
max-h-full max-w-full ma
>
<div flex flex-row items-center mxa>
<ModalMediaPreviewCarousel v-model="index" :media="mediaPreviewList" @close="emit('close')" />
</div>
<div absolute top-0 w-full flex justify-between>
<button
@ -83,7 +66,7 @@ function onClick(e: MouseEvent) {
</button>
<div bg="black/30" dark:bg="white/10" ms-4 my-auto text-white rounded-full flex="~ center" overflow-hidden>
<div v-if="mediaPreviewList.length > 1" p="y-1 x-2" rounded-r-0 shrink-0>
{{ mediaPreviewIndex + 1 }} / {{ mediaPreviewList.length }}
{{ index + 1 }} / {{ mediaPreviewList.length }}
</div>
<p
v-if="current.description" bg="dark/30" dark:bg="white/10" p="y-1 x-2" rounded-ie-full line-clamp-1

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@ -0,0 +1,70 @@
<script setup lang="ts">
import { SwipeDirection } from '@vueuse/core'
import { useReducedMotion } from '@vueuse/motion'
import type { Attachment } from 'masto'
const props = withDefaults(defineProps<{ media: Attachment[]; threshold?: number; modelValue: number }>(), {
media: [] as any,
threshold: 20,
modelValue: 0,
})
const emit = defineEmits<{
(e: 'update:modelValue', v: boolean): void
(event: 'close'): void
}>()
const target = ref()
const index = useVModel(props, 'modelValue', emit)
const animateTimeout = useTimeout(10)
const reduceMotion = useReducedMotion()
const canAnimate = computed(() => !reduceMotion.value && animateTimeout.value)
const { width, height } = useElementSize(target)
const { isSwiping, lengthX, lengthY, direction } = useSwipe(target, {
threshold: 5,
passive: false,
onSwipeEnd(e, direction) {
// eslint-disable-next-line @typescript-eslint/no-use-before-define
if (direction === SwipeDirection.RIGHT && Math.abs(distanceX.value) > props.threshold)
index.value = Math.max(0, index.value - 1)
// eslint-disable-next-line @typescript-eslint/no-use-before-define
if (direction === SwipeDirection.LEFT && Math.abs(distanceX.value) > props.threshold)
index.value = Math.min(props.media.length - 1, index.value + 1)
// eslint-disable-next-line @typescript-eslint/no-use-before-define
if (direction === SwipeDirection.UP && Math.abs(distanceY.value) > props.threshold)
emit('close')
},
})
const distanceX = computed(() => {
if (width.value === 0)
return 0
if (!isSwiping.value || (direction.value !== SwipeDirection.LEFT && direction.value !== SwipeDirection.RIGHT))
return index.value * 100 * -1
return (lengthX.value / width.value) * 100 * -1 + (index.value * 100) * -1
})
const distanceY = computed(() => {
if (height.value === 0 || !isSwiping.value || direction.value !== SwipeDirection.UP)
return 0
return (lengthY.value / height.value) * 100 * -1
})
</script>
<template>
<div ref="target" flex flex-row max-h-full max-w-full overflow-hidden>
<div flex :style="{ transform: `translateX(${distanceX}%) translateY(${distanceY}%)`, transition: isSwiping ? 'none' : canAnimate ? 'all 0.5s ease' : 'none' }">
<div v-for="item in media" :key="item.id" p4 select-none w-full flex-shrink-0 flex flex-col place-items-center>
<img max-h-full max-w-full :draggable="false" select-none :src="item.url || item.previewUrl" :alt="item.description || ''">
</div>
</div>
</div>
</template>

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@ -1,5 +1,7 @@
html {
font-size: var(--font-size, 15px);
width: 100%;
width: 100vw;
}
@font-face {