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Displays a list of more videos by the same channel inline
// ==UserScript==
// @name View More Videos by Same YouTube Channel
// @namespace https://greasyfork.org/users/649
// @version 1.2.3
// @description Displays a list of more videos by the same channel inline
// @author Adrien Pyke
// @match *://www.youtube.com/*
// @require https://cdn.jsdelivr.net/gh/fuzetsu/userscripts@ec863aa92cea78a20431f92e80ac0e93262136df/wait-for-elements/wait-for-elements.js
// @require https://unpkg.com/mithril
// @resource pageTokens https://cdn.rawgit.com/Quihico/handy.stuff/7e47f4f2/yt.pagetokens.00000-00999
// @grant GM_addStyle
// @grant GM_getResourceText
// ==/UserScript==
(() => {
'use strict';
const CLASS_PREFIX = 'YVM_';
GM_addStyle(/* css */ `
.${CLASS_PREFIX}slider {
display: flex;
align-items: center;
margin-top: 8px;
}
.${CLASS_PREFIX}thumbnails-wrap {
flex-grow: 1;
overflow-x: hidden;
}
.${CLASS_PREFIX}thumbnails {
display: flex;
position: relative;
top: 0;
transition: left 300ms ease-out;
}
.${CLASS_PREFIX}thumbnail {
display: flex;
flex-direction: column;
margin-right: 8px;
min-width: 168px;
}
.${CLASS_PREFIX}thumbnail ytd-thumbnail {
margin-right: 8px;
height: 94px;
width: 168px;
}
.${CLASS_PREFIX}thumbnail.${CLASS_PREFIX}active {
background-color: var(--yt-thumbnail-placeholder-color);
}
#${CLASS_PREFIX}mount-point {
margin-top: 8px;
}
.${CLASS_PREFIX}slider ytd-thumbnail.ytd-compact-video-renderer {
margin: 0;
}
.${CLASS_PREFIX}slider #video-title.ytd-compact-video-renderer {
max-height: 4.8rem;
}
`);
const API_URL = 'https://www.googleapis.com/youtube/v3/';
const API_KEY = 'AIzaSyDEAM1cSePslXRBk1Bkoo4FCXYBnEZSsgI';
const RESULTS_PER_FETCH = 50;
const LAZY_LOAD_BUFFER = 10;
const icons = {
'chevron-left':
'<g id="chevron-left"><path d="M15.41 7.41L14 6l-6 6 6 6 1.41-1.41L10.83 12z"></path></g>',
'chevron-right':
'<g id="chevron-right"><path d="M10 6L8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"></path></g>'
};
const Util = {
btn(options, text) {
return m(
'paper-button[role=button][subscribed].style-scope.ytd-subscribe-button-renderer',
options,
text
);
},
iconBtn(icon, options = {}) {
return m(
'ytd-button-renderer.style-scope.ytd-menu-renderer.force-icon-button.style-default.size-default[button-renderer][is-icon-button]',
{ icon },
[m('paper-icon-button', Object.assign(options))]
);
},
initCmp(cmp) {
const oninit = cmp.oninit;
return Object.assign({}, cmp, {
oninit(vnode) {
if (typeof cmp.model === 'function') vnode.state.model = cmp.model();
if (oninit) oninit(vnode);
}
});
},
delayedRedraw(func, delay = 50) {
return new Promise(resolve =>
setTimeout(() => {
func();
m.redraw();
resolve();
}, delay)
);
},
fillIcons(vnode) {
Array.from(
vnode.dom.querySelectorAll('ytd-button-renderer[icon]')
).forEach(
btn =>
(btn.querySelector('iron-icon').innerHTML = /* html */ `
<svg viewBox="0 0 24 24"
preserveAspectRatio="xMidYMid meet"
focusable="false"
class="style-scope yt-icon"
style="pointer-events: none;
display: block;
width: 100%;
height: 100%;">
${icons[btn.getAttribute('icon')]}
</svg>
`)
);
},
decode(text) {
const elem = document.createElement('textarea');
elem.innerHTML = text;
return elem.value;
}
};
const Api = {
pageTokens: GM_getResourceText('pageTokens').split('\n'),
request(endpoint, data, method = 'GET') {
return m.request({
method,
background: true,
url: API_URL + endpoint,
params: Object.assign(data, { key: API_KEY })
});
},
parseVideo(data) {
return {
id: data.snippet.resourceId ? data.snippet.resourceId.videoId : data.id,
title: data.snippet.title,
channelId: data.snippet.channelId,
channelTitle: data.snippet.channelTitle,
publishedAt: new Date(data.snippet.publishedAt),
thumbnail: data.snippet.thumbnails.medium.url
};
},
sortVideos(a, b) {
if (a.publishedAt > b.publishedAt) return -1;
else if (a.publishedAt < b.publishedAt) return 1;
return 0;
},
async getVideo(id) {
const data = await Api.request('videos', {
part: 'snippet',
id
});
if (data && data.items.length > 0) return Api.parseVideo(data.items[0]);
},
async getPlaylistId(channelId) {
const data = await Api.request('channels', {
part: 'contentDetails',
id: channelId
});
return data.items[0].contentDetails.relatedPlaylists.uploads;
},
async getVideos(playlistId, pageToken) {
const data = await Api.request('playlistItems', {
part: 'snippet',
maxResults: RESULTS_PER_FETCH,
playlistId,
...(pageToken ? { pageToken } : {})
});
return {
pageToken: data.nextPageToken,
videos: data.items.map(Api.parseVideo)
};
},
get currentVideoId() {
const url = new URL(location.href);
return url.searchParams.get('v');
}
};
const Components = {
App: Util.initCmp({
model: () => ({
hidden: true
}),
actions: {
toggle: model => (model.hidden = !model.hidden)
},
view(vnode) {
const { model, actions } = vnode.state;
return m('div', [
Util.btn(
{
onclick: () => actions.toggle(model)
},
'View More Videos'
),
m(Components.Slider, {
hidden: model.hidden,
videoId: Api.currentVideoId
})
]);
}
}),
Slider: Util.initCmp({
model: () => ({
currentVideo: null,
playlistId: null,
videos: [],
pageToken: null,
loading: false,
position: 0,
shiftLeft() {
this.position = Math.max(this.position - 1, 0);
},
shiftRight() {
this.position = Math.min(this.position + 1, this.videos.length - 1);
},
get leftPx() {
return this.position * -176;
}
}),
actions: {
async fetchInitialVideos(model, currentVideoId) {
model.currentVideo = await Api.getVideo(currentVideoId);
model.playlistId = await Api.getPlaylistId(
model.currentVideo.channelId
);
await this.loadVideos(model);
model.position = Math.max(
(model.videos.findIndex(v => v.id === model.currentVideo.id) || 0) -
1,
0
);
},
async loadVideos(model) {
model.loading = true;
const { pageToken, videos } = await Api.getVideos(
model.playlistId,
model.pageToken
);
model.videos.push(...videos);
model.pageToken = pageToken;
model.loading = false;
m.redraw();
},
moveLeft(model) {
model.shiftLeft();
m.redraw();
},
async moveRight(model) {
if (model.loading) return;
if (
model.position + LAZY_LOAD_BUFFER > model.videos.length &&
model.pageToken
) {
await this.loadVideos(model, true);
Util.delayedRedraw(() => {
model.shiftRight();
model.loading = false;
});
} else {
model.shiftRight();
}
}
},
oninit(vnode) {
const { model, actions } = vnode.state;
actions.fetchInitialVideos(model, vnode.attrs.videoId);
},
oncreate: Util.fillIcons,
view(vnode) {
const { model, actions } = vnode.state;
return m(`div.${CLASS_PREFIX}slider`, { hidden: vnode.attrs.hidden }, [
Util.iconBtn('chevron-left', {
onclick: () => actions.moveLeft(model)
}),
m(`div.${CLASS_PREFIX}thumbnails-wrap`, [
m(
`div.${CLASS_PREFIX}thumbnails`,
{
style: `left: ${model.leftPx}px;transition-property:${
model.loading ? 'none' : ''
};`
},
model.videos.map(video =>
m(Components.Thumbnail, {
key: video.id,
active: video.id === model.currentVideo.id,
video
})
)
)
]),
Util.iconBtn('chevron-right', {
onclick: () => actions.moveRight(model)
})
]);
}
}),
Thumbnail: Util.initCmp({
model: () => ({
video: null
}),
oninit(vnode) {
vnode.state.model.video = vnode.attrs.video;
},
view(vnode) {
const { model } = vnode.state;
const title = Util.decode(model.video.title);
return m(
`div.${CLASS_PREFIX}thumbnail${
vnode.attrs.active ? `.${CLASS_PREFIX}active` : ''
}`,
[
m(
'ytd-thumbnail.style-scope.ytd-compact-video-renderer',
{ width: 168 },
[
m(
'a#thumbnail.yt-simple-endpoint.inline-block.style-scope.ytd-thumbnail',
{ rel: 'nofollow', href: `/watch?v=${model.video.id}` },
[
m(
'yt-img-shadow.style-scope.ytd-thumbnail.no-transition[loaded]',
[
m('img.style-scope.yt-img-shadow', {
width: 168,
src: model.video.thumbnail
})
]
)
]
)
]
),
m(
'a.yt-simple-endpoint.style-scope.ytd-compact-video-renderer',
{ rel: 'nofollow', href: `/watch?v=${model.video.id}` },
[
m('h3.style-scope.ytd-compact-video-renderer', [
m(
'span#video-title.style-scope.ytd-compact-video-renderer',
{ title },
title
)
])
]
)
]
);
}
})
};
let wait;
const mountId = `${CLASS_PREFIX}mount-point`;
waitForUrl(
() => true,
() => {
if (wait) wait.stop();
const oldMount = document.getElementById(mountId);
if (oldMount) {
m.mount(oldMount, null);
oldMount.remove();
}
wait = waitForElems({
sel: 'ytd-video-secondary-info-renderer > #container',
stop: true,
onmatch(container) {
const mount = document.createElement('div');
mount.id = mountId;
container.prepend(mount);
m.mount(mount, Components.App);
}
});
}
);
})();