/*
MIT License
Copyright 2022 CY Fung
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
// ==UserScript==
// @name YouTube Video Resize Fix
// @name:ja YouTube Video Resize Fix
// @name:zh-TW YouTube Video Resize Fix
// @name:zh-CN YouTube Video Resize Fix
// @version 0.2.1
// @description This Userscript can fix the video sizing issue. Please use it with other Userstyles / Userscripts.
// @description:ja この Userscript は、動画のサイズ変更の問題を修正できます。 他のユーザースタイル・ユーザースクリプトと合わせてご利用ください。
// @description:zh-TW 此 Userscript 可以解決影片大小變形問題。 請將它與其他Userstyles / Userscripts一起使用。
// @description:zh-CN 此 Userscript 可以解决视频大小变形问题。请将它与其他Userstyles / Userscripts一起使用。
// @namespace http://tampermonkey.net/
// @author CY Fung
// @license MIT License
// @supportURL https://github.com/cyfung1031/userscript-supports
// @run-at document-start
// @match https://www.youtube.com/watch*
// @icon https://www.google.com/s2/favicons?sz=64&domain=youtube.com
// @grant none
// @unwrap
// @allFrames
// @inject-into page
// ==/UserScript==
/* jshint esversion:8 */
(function () {
'use strict';
const elements = {}
let rid1 = 0
let rid2 = 0
/** @type {MutationObserver | null} */
let attrObserver = null
/** @type {ResizeObserver | null} */
let resizeObserver = null
let isHTMLAttrApplied = false
const core = {
begin() {
document.addEventListener('yt-player-updated', core.hanlder, true)
document.addEventListener('ytd-navigate-finish', core.hanlder, true)
},
hanlder() {
rid1++
if (rid1 > 1e9) rid1 = 9
const tid = rid1
window.requestAnimationFrame(() => {
if (tid !== rid1) return
core.runner()
})
},
async runner() {
if (!location.href.startsWith('https://www.youtube.com/watch')) return
elements.ytdFlexy = document.querySelector('ytd-watch-flexy')
elements.video = document.querySelector('ytd-watch-flexy #movie_player video')
if (elements.ytdFlexy && elements.video) { } else return
elements.moviePlayer = elements.video.closest('#movie_player')
if (!elements.moviePlayer) return
// resize Video
let { ytdFlexy } = elements;
if (!ytdFlexy.ElYTL) {
ytdFlexy.ElYTL = 1;
ytdFlexy.calculateNormalPlayerSize_ = core.resizeFunc(ytdFlexy.calculateNormalPlayerSize_, 1);
ytdFlexy.calculateCurrentPlayerSize_ = core.resizeFunc(ytdFlexy.calculateCurrentPlayerSize_, 0);
}
ytdFlexy = null
// when video is fetched
elements.video.removeEventListener('canplay', core.triggerResizeDelayed, false)
elements.video.addEventListener('canplay', core.triggerResizeDelayed, false)
// when video is resized
if (resizeObserver) {
resizeObserver.disconnect()
resizeObserver = null
}
if (typeof ResizeObserver === 'function') {
resizeObserver = new ResizeObserver(core.triggerResizeDelayed);
resizeObserver.observe(elements.moviePlayer)
}
// MutationObserver:[collapsed] @ ytd-live-chat-frame#chat
if (attrObserver) {
attrObserver.takeRecords()
attrObserver.disconnect()
attrObserver = null
}
let chat = document.querySelector('ytd-watch-flexy ytd-live-chat-frame#chat')
if (chat) {
// resize due to DOM update
attrObserver = new MutationObserver(core.triggerResizeDelayed);
attrObserver.observe(chat, { attributes: true, attributeFilter: ["collapsed"] });
chat = null
}
// resize on idle
core.triggerResizeDelayed()
},
resizeFunc(originalFunc, kb) {
return function () {
rid2++
if (!isHTMLAttrApplied) {
isHTMLAttrApplied = true
Promise.resolve(0).then(() => {
document.documentElement.classList.add('youtube-video-resize-fix')
}).catch(console.warn)
}
if (document.fullscreenElement === null) {
// calculateCurrentPlayerSize_ shall be always return NaN to make correct positioning of toolbars
if (!kb) return { width: NaN, height: NaN }
let ret = core.calculateSize();
if (ret.height > 0 && ret.width > 0) {
return ret
}
}
return originalFunc.apply(this, arguments)
};
},
calculateSize_() {
const { moviePlayer, video } = elements
const rect1 = video.getBoundingClientRect()
const rect2 = moviePlayer.getBoundingClientRect()
if (rect1.width && rect1.height && rect1.width / rect1.height > 0) {
let h2 = rect2.width * rect1.height / rect1.width
let w2 = rect2.height * rect1.width / rect1.height
return { rect1, rect2, h2, w2 }
} else {
return null
}
},
calculateSize() {
let rs = core.calculateSize_()
if (!rs) return { width: NaN, height: NaN }
const { rect1, rect2, h2, w2 } = rs
if (h2 > rect2.height) {
return { width: w2, height: rect2.height }
} else {
return { width: rect2.width, height: h2 }
}
},
triggerResizeDelayed() {
rid2++
if (rid2 > 1e9) rid2 = 9
const tid = rid2
window.requestAnimationFrame(() => {
if (tid !== rid2) return
let { ytdFlexy } = elements
let r = false
if (ytdFlexy && ytdFlexy.windowSize_ && typeof ytdFlexy.onWindowResized_ === 'function') {
try {
ytdFlexy.onWindowResized_(ytdFlexy.windowSize_)
r = true
} catch (e) { }
}
if (!r) window.dispatchEvent(new Event('resize'))
})
}
};
core.begin();
})();