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433 lines
11 KiB
433 lines
11 KiB
<script lang="ts">
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import { fileTypeFromBuffer, FileTypeResult } from 'file-type'
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import { settings, appState } from '../stores'
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import { beforeUpdate, tick } from 'svelte'
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import type { EmbeddedFile } from '../main'
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import { createEventDispatcher } from 'svelte'
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import { GM_head, headerStringToObject } from '../requests'
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import { text } from 'svelte/internal'
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import App from './App.svelte'
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import { Buffer } from 'buffer'
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export const dispatch = createEventDispatcher()
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export let file: EmbeddedFile
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let isVideo = false
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let isImage = false
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let isAudio = false
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let isText = false
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let url = ''
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let settled = false
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let contracted = true
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let hovering = false
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let ftype = ''
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let place: HTMLDivElement
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let hoverElem: HTMLDivElement
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let imgElem: HTMLImageElement
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let videoElem: HTMLVideoElement
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let hoverVideo: HTMLVideoElement
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let dims: [number, number] = [0, 0]
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let furl: string | undefined = undefined
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let visible = false
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export const isNotChrome = !navigator.userAgent.includes('Chrome/')
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export let id = ''
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document.addEventListener('reveal', (e: any) => {
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if (e.detail.id == id) visible = !visible
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})
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export function isContracted() {
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return contracted
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}
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let content: Blob
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beforeUpdate(async () => {
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if (settled) return
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settled = true
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const thumb = file.thumbnail || file.data
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let type: FileTypeResult | undefined
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if (typeof thumb != 'string') {
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type = await fileTypeFromBuffer(thumb)
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if (
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!type &&
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file.filename.endsWith('.txt') &&
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file.filename.startsWith('message')
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) {
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type = { ext: 'txt', mime: 'text/plain' } as any
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}
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content = new Blob([thumb], { type: type?.mime })
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url = URL.createObjectURL(content)
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if (!type) return
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} else {
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let head = headerStringToObject(await GM_head(thumb, undefined))
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type = { ext: '' as any, mime: head['content-type'].split(';')[0].trim() as any }
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}
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ftype = type.mime
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isVideo = type.mime.startsWith('video/')
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isAudio = type.mime.startsWith('audio/')
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isImage = type.mime.startsWith('image/')
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isText = type.mime.startsWith('text/plain')
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dispatch('fileinfo', { type })
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if (isImage) {
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contracted = !$settings.xpi
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}
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if (isVideo) {
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contracted = !$settings.xpv && !$appState.isCatalog
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}
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if ($appState.isCatalog) contracted = true
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if ($settings.pre) {
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unzip() // not awaiting on purpose
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}
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if ($settings.prev) {
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let obs = new IntersectionObserver(
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(entries, obs) => {
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for (const item of entries) {
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if (!item.isIntersecting) continue
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unzip()
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obs.unobserve(place)
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}
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},
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{ root: null, rootMargin: '0px', threshold: 0.01 },
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)
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obs.observe(place)
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}
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})
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let unzipping = false
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let progress = [0, 0]
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async function unzip() {
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if (!file.thumbnail) return
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if (unzipping) return
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let type: FileTypeResult | undefined
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if (typeof file.data != 'string') {
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unzipping = true
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let lisn = new EventTarget()
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lisn.addEventListener('progress', (e: any) => {
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progress = e.detail
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})
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let full = Buffer.isBuffer(file.data) ? file.data : await file.data(lisn)
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type = await fileTypeFromBuffer(full)
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if (
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!type &&
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file.filename.endsWith('.txt') &&
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file.filename.startsWith('message')
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) {
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type = { ext: 'txt', mime: 'text/plain' } as any
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}
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content = new Blob([full], { type: type?.mime })
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furl = URL.createObjectURL(content)
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} else {
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url = file.data
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furl = file.data
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let head = headerStringToObject(await GM_head(file.data, undefined))
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type = { ext: '' as any, mime: head['content-type'].split(';')[0].trim() as any }
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}
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if (!type) return
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isVideo = type.mime.startsWith('video/')
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isAudio = type.mime.startsWith('audio/')
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isImage = type.mime.startsWith('image/')
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isText = type.mime.startsWith('text/plain')
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unzipping = false
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dispatch('fileinfo', { type })
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if (hovering) {
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// reset hovering to recompute proper image coordinates
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setTimeout(async () => {
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do {
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hoverUpdate()
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await new Promise((_) => setTimeout(_, 20))
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} while (dims[0] == 0 && dims[1] == 0)
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}, 20)
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}
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}
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function hasAudio(video: any) {
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return (
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video.mozHasAudio ||
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!!video.webkitAudioDecodedByteCount ||
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!!(video.audioTracks && video.audioTracks.length)
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)
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}
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export async function bepis(ev: MouseEvent) {
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if ($appState.isCatalog) return
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if (ev.button == 0) {
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contracted = !contracted
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if (hovering) hoverStop()
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if (contracted && isVideo) {
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videoElem.controls = false
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videoElem.pause()
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}
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if (!contracted && isVideo) {
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videoElem.controls = true
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// has to be delayed
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setTimeout(async () => {
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videoElem.currentTime = hoverVideo.currentTime || 0
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await videoElem.play()
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}, 10)
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}
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if (file.thumbnail && !furl) {
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// don't know how you managed to click before hovering but oh well
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unzip()
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}
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ev.preventDefault()
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} else if (ev.button == 1) {
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// middle click
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let src = furl || url
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if (ev.altKey && file.source) {
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src = file.source
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}
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if (ev.shiftKey && file.page) {
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src = file.page.url
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}
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ev.preventDefault()
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if (isNotChrome) {
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window.open(src, '_blank')
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} else await GM.openInTab(src, { active: false, insert: true })
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}
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}
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const getViewport = () =>
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(typeof visualViewport != 'undefined'
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? () => [visualViewport.width, visualViewport.height]
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: () => [
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document.documentElement.clientWidth,
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document.documentElement.clientHeight,
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])()
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function recompute() {
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const [sw, sh] = getViewport()
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let [iw, ih] = [0, 0]
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if (isImage) {
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;[iw, ih] = [imgElem.naturalWidth, imgElem.naturalHeight]
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} else if (isVideo) {
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;[iw, ih] = [videoElem.videoWidth, videoElem.videoHeight]
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}
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let scale = Math.min(1, sw / iw, sh / ih)
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dims = [~~(iw * scale), ~~(ih * scale)]
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hoverElem.style.width = `${dims[0]}px`
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hoverElem.style.height = `${dims[1]}px`
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}
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async function hoverStart(ev?: MouseEvent) {
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if (!(isVideo || isImage)) return
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if ($settings.dh) return
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if (file.thumbnail && !furl) {
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unzip()
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}
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if (!isImage && !isVideo) return
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if (!contracted) return
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recompute()
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hovering = true
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if (isVideo) {
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try {
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await hoverVideo.play()
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} catch (e) {
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// probably didn't interact with document error, mute the video and try again?
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hoverVideo.muted = true
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hoverVideo.volume = 0
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await hoverVideo.play()
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}
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}
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}
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function hoverStop(ev?: MouseEvent) {
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if ($settings.dh) return
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hovering = false
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if (isVideo) hoverVideo.pause()
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}
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let lastev: MouseEvent | undefined
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function hoverUpdate(ev?: MouseEvent) {
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lastev = lastev || ev
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if ($settings.dh) return
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if (!contracted) return
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if (!(isVideo || isImage)) return
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recompute() // yeah I gave up
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const [sw, sh] = [visualViewport.width, visualViewport.height]
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// shamelessly stolen from 4chanX
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if (dims[0] == 0 && dims[1] == 0) recompute()
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let width = dims[0]
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let height = dims[1] + 25
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let { clientX, clientY } = ev || lastev!
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let top = Math.max(0, (clientY * (sh - height)) / sh)
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let threshold = sw / 2
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let marginX: number | string =
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(clientX <= threshold ? clientX : sw - clientX) + 45
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marginX = Math.min(marginX, sw - width)
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marginX = marginX + 'px'
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let [left, right] = clientX <= threshold ? [marginX, ''] : ['', marginX]
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let { style } = hoverElem
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style.top = top + 'px'
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style.left = left
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style.right = right
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}
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function adjustAudio(ev: WheelEvent) {
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if (!$settings.ca) return
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if (!isVideo) return
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if ($settings.dh && contracted) return
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if (!hasAudio(videoElem)) return
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let vol = videoElem.volume * (ev.deltaY > 0 ? 0.9 : 1.1)
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vol = Math.max(0, Math.min(1, vol))
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videoElem.volume = vol
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hoverVideo.volume = videoElem.volume
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hoverVideo.muted = vol < 0
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ev.preventDefault()
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}
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</script>
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{#if !$settings.eye || visible}
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<!-- svelte-ignore a11y-mouse-events-have-key-events -->
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<div
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class:contract={contracted}
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class="place"
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on:click={(e) => e.preventDefault()}
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on:auxclick={(e) => e.preventDefault()}
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on:mousedown={bepis}
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on:mouseover={hoverStart}
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on:mouseout={hoverStop}
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on:mousemove={hoverUpdate}
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on:wheel={adjustAudio}
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bind:this={place}
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>
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{#if isImage}
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<!-- svelte-ignore a11y-missing-attribute -->
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<img
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referrerpolicy="no-referrer"
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bind:this={imgElem}
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alt={file.filename}
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src={furl || url}
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/>
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{/if}
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{#if isAudio}
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<audio
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referrerpolicy="no-referrer"
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controls
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src={furl || url}
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loop={$settings.loop}
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alt={file.filename}
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>
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<source src={furl || url} type={ftype} />
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</audio>
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{/if}
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{#if isVideo}
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<!-- svelte-ignore a11y-media-has-caption -->
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<!-- svelte-ignore a11y-missing-attribute -->
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<video
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referrerpolicy="no-referrer"
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loop={$settings.loop}
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bind:this={videoElem}
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src={furl || url}
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/>
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<!-- assoom videos will never be loaded from thumbnails -->
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{/if}
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{#if isText}
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<!-- svelte-ignore a11y-media-has-caption -->
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<!-- svelte-ignore a11y-missing-attribute -->
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{#await content.text()}
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<pre>Loading...</pre>
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{:then con}
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<pre>{con}</pre>
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{/await}
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<!-- assoom videos will never be loaded from thumbnails -->
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{/if}
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</div>
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<div
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bind:this={hoverElem}
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class:visible={hovering && contracted}
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class:unzipping
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class="hoverer"
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>
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{#if unzipping}<span class="progress">[{progress[0]} / {progress[1]}]</span
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>{/if}
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{#if isImage}
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<img referrerpolicy="no-referrer" alt={file.filename} src={furl || url} />
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{/if}
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{#if isVideo}
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<!-- svelte-ignore a11y-media-has-caption -->
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<video
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referrerpolicy="no-referrer"
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loop={$settings.loop}
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bind:this={hoverVideo}
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src={furl || url}
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/>
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<!-- assoom videos will never be loaded from thumbnails -->
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{/if}
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</div>
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{/if}
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<style scoped>
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.place {
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cursor: pointer;
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max-width: 100vw;
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max-height: 100vh;
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}
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.unzipping > img {
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filter: brightness(0.5) blur(10px);
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}
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.progress {
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color: black;
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-webkit-text-stroke: 0.7px white;
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font-weight: bold;
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left: 50%;
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top: 50%;
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font-size: larger;
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display: inline-block;
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position: absolute;
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z-index: 10;
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}
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.hoverer {
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display: none;
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position: fixed;
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pointer-events: none;
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}
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.visible {
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display: block;
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z-index: 9;
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}
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pre {
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padding: 10px;
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}
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.contract pre {
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max-width: 20ch;
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text-overflow: ellipsis;
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overflow: hidden;
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}
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.contract img,
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.contract video {
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max-width: 125px !important;
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max-height: 125px !important;
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width: auto;
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height: auto;
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}
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.place:not(.contract) video,
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.place:not(.contract) img,
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.hoverer > video,
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.hoverer > img {
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max-width: 100vw;
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max-height: 100vh;
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}
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</style>
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