Youtube Better Player

Scroll wheel volume, "Are you there" popup bypass, Volume percent display, Infinite autoplay, Volume save

目前為 2024-02-03 提交的版本,檢視 最新版本

您需要先安裝使用者腳本管理器擴展,如 TampermonkeyGreasemonkeyViolentmonkey 之後才能安裝該腳本。

You will need to install an extension such as Tampermonkey to install this script.

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyViolentmonkey 後才能安裝該腳本。

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyUserscripts 後才能安裝該腳本。

你需要先安裝一款使用者腳本管理器擴展,比如 Tampermonkey,才能安裝此腳本

您需要先安裝使用者腳本管理器擴充功能後才能安裝該腳本。

(我已經安裝了使用者腳本管理器,讓我安裝!)

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

(我已經安裝了使用者樣式管理器,讓我安裝!)

// ==UserScript==
// @name         Youtube Better Player
// @description  Scroll wheel volume, "Are you there" popup bypass, Volume percent display, Infinite autoplay, Volume save
// @include      /^https:\/\/www\.youtube\.com\/(?!(live_chat\?.*|ytscframe)$).*$/
// @run-at       document-idle
// @allFrames    true
// @grant        GM_addStyle
// @version 0.0.1.20240203200230
// @namespace https://greasyfork.org/users/286737
// ==/UserScript==

class Player {
    constructor() {
        this.volumeSk = 'ytbp-volume'
    }

    async init(isEmbed) {
        const api = this.api = await this.getApi(isEmbed)
        
        const savedVolume = localStorage.getItem(this.volumeSk)
        const volume = this.volume = savedVolume == undefined ? 5 : Number(savedVolume)

        api.unMute()
        api.setVolume(volume)

        const {$player, $video, $eventCatcher, $volumeArea, $volumeBar} = this.getEls()

        this.$volumeText = this.buildVolumeText($volumeArea)

        const onVolumeChange = this.onVolumeChange.bind(this)
        $video.addEventListener('volumechange', onVolumeChange)

        new WheelVolume(this, api, $volumeBar, $player).init($eventCatcher)

        if (!isEmbed) new RealAutoPlay(api).init($video)
    }

    async getApi(isEmbed) {
        if (isEmbed) {
            let api
            while (!(api = unsafeWindow.movie_player)) await wait(200)

            return api
        }

        let $el, api

        while (!($el = unsafeWindow['ytd-player'])) await wait(1000)
        while (!(api = $el.player_)) await wait(200)
        while (!api.isReady()) await wait(200)

        return api
    }

    getEls() {
        const $player = $('#movie_player')
        const $video = $('.html5-main-video', $player)
        const $eventCatcher = $player.parentElement
        const $volumeArea = $('.ytp-volume-area', $player)
        const $volumeBar = $('.ytp-volume-slider', $volumeArea)

        return {$player, $video, $eventCatcher, $volumeArea, $volumeBar}
    }

    buildVolumeText($volumeArea) {
        const $volumeText = document.createElement('span')
        $volumeText.classList.add('ytbp-volume-text')
        $volumeText.textContent = this.volume
        GM_addStyle(volumeTextStyle)

        $volumeArea.insertAdjacentElement('beforeend', $volumeText)

        return $volumeText
    }

    onVolumeChange() {
        this.volume = this.$volumeText.textContent = Math.floor(this.api.getVolume())

        clearTimeout(this.saveTimeout)

        this.saveTimeout = setTimeout(() => localStorage.setItem(this.volumeSk, this.volume), 1000)
    }
}

class WheelVolume {
    constructor(player, api, $volumeBar, $player) {
        this.player = player
        this.api = api
        this.$volumeBar = $volumeBar
        this.$player = $player

        this.events = {
            mouseover: new Event('mouseover', {bubbles: true}),
            mouseout: new Event('mouseout', {bubbles: true}),
            mousemove: new Event('mousemove')
        }
    }

    init($eventCatcher) {
        const onWheel = this.onWheel.bind(this)
        const onClick = this.onClick.bind(this)

        $eventCatcher.addEventListener('wheel', onWheel)
        $eventCatcher.addEventListener('mousedown', onClick)
    }

    onWheel(e) {
        e.preventDefault()
        e.stopImmediatePropagation()

        this.show()

        const api = this.api
        const now = Date.now(), since = now - this.prevScrollDate
        const step = (e.deltaY < 0 ? 1 : -1) * (since < 50 ? 4 : 1)

        if (api.isMuted()) api.unMute()

        api.setVolume(this.player.volume + step)

        this.prevScrollDate = now
    }

    onClick(e) {
        if (e.which != 2) return

        e.preventDefault()

        this.show()

        const api = this.api

        if (api.isMuted()) {
            api.unMute()
            api.setVolume(this.player.volume)
        }
        else api.mute()
    }

    show() {
        const $volumeBar = this.$volumeBar, events = this.events

        this.$player.dispatchEvent(events.mousemove)

        clearTimeout(this.showTimeout)

        $volumeBar.dispatchEvent(events.mouseover)

        this.showTimeout = setTimeout(() => $volumeBar.dispatchEvent(events.mouseout), 1000)
    }
}

class RealAutoPlay {
    constructor(api) {
        this.api = api

        this.popupName = 'yt-confirm-dialog-renderer'
        this.popupContainer = $('ytd-popup-container', unsafeWindow.document).inst

        const storedAutoNav = localStorage.getItem('yt.autonav::autonav_disabled')
        this.autoNavEnabled = storedAutoNav ? !JSON.parse(storedAutoNav).data : true
    }

    init($video) {
        const bypassPopup = this.bypassPopup.bind(this)
        const forceNextVideo = this.forceNextVideo.bind(this)
        const onToggleAutoNav = this.onToggleAutoNav.bind(this)

        $video.addEventListener('pause', bypassPopup)
        $video.addEventListener('waiting', bypassPopup)
        $video.addEventListener('ended', forceNextVideo)

        $('.ytp-autonav-toggle-button').addEventListener('click', onToggleAutoNav)
    }

    bypassPopup() {
        const popup = this.popupContainer.popups_[this.popupName]

        if (!popup) return

        this.api.playVideo()

        popup.popup.remove()
        delete this.popupContainer.popups_[this.popupName]
    }

    forceNextVideo() {
        if (this.autoNavEnabled && !document.hasFocus()) this.api.nextVideo()
    }

    onToggleAutoNav() {
        this.autoNavEnabled = !this.autoNavEnabled
    }
}

const init = async () => {
    const isEmbed = location.pathname.startsWith('/embed/')

    if (isEmbed) await new Promise(r => $('video').addEventListener('canplay', r, {once: true}))

    new Player().init(isEmbed)
}

const volumeTextStyle = `
.ytbp-volume-text {
    position: relative;
    top: -0.5px;
    width: 0;
    text-indent: 2px;
    overflow: hidden;
    color: #ddd;
    font-size: 109%;
    text-shadow: 0 0 2px rgba(0, 0, 0, 0.5);
    transition: width .2s
}
.ytbp-volume-text:after { content: '%' }
.ytp-volume-control-hover:not([aria-valuenow="0"], [aria-valuenow="100"]) + .ytbp-volume-text {
    width: 2.5em
}
`

const $ = (sel, el = document) => el.querySelector(sel)

const wait = (ms) => new Promise(r => setTimeout(r, ms))


init()