// ==UserScript==
// @name View More Videos by Same YouTube Channel
// @namespace https://greasyfork.org/users/649
// @version 1.0.5
// @description Displays a list of more videos by the same channel inline
// @author Adrien Pyke
// @match *://www.youtube.com/*
// @require https://cdn.rawgit.com/fuzetsu/userscripts/477063e939b9658b64d2f91878da20a7f831d98b/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(`
.${CLASS_PREFIX}slider {
display: flex;
align-items: center;
margin-top: 8px;
}
.${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;
}
.${CLASS_PREFIX}thumbnail.${CLASS_PREFIX}active {
background-color: hsl(0, 0%, 93.3%);
}
#${CLASS_PREFIX}mount-point {
margin-top: 8px;
}
.${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 = 'AIzaSyCR7JKF4Lb-CsTQNapToOQeMF7SIIbqxSw';
const RESULTS_PER_FETCH = 50;
const LAZY_LOAD_BUFFER = 10;
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]', [
m('paper-icon-button', Object.assign(options, { icon }))
]);
},
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));
}
};
const Api = {
pageTokens: GM_getResourceText('pageTokens').split('\n'),
request(endpoint, data, method = 'GET') {
return m.request({
method,
background: true,
url: API_URL + endpoint,
data: Object.assign(data, { key: API_KEY })
});
},
parseVideo(data) {
return {
id: data.id.videoId || data.id,
title: data.snippet.title,
channelId: data.snippet.channelId,
channelTitle: data.snippet.channelTitle,
publishedAt: data.snippet.publishedAt,
thumbnail: data.snippet.thumbnails.medium.url
};
},
async getVideo(id) {
const data = await Api.request('videos', {
part: 'snippet',
id
});
if (data && data.items.length > 0) return Api.parseVideo(data.items[0]);
},
performSearch(currentVideo, options, pageToken) {
return Api.request('search', Object.assign({
part: 'snippet',
type: 'video',
channelId: currentVideo.channelId,
order: 'date',
maxResults: RESULTS_PER_FETCH
}, pageToken ? { pageToken } : {}, options));
},
async getNumNewerVideos(currentVideo) {
const data = await Api.performSearch(currentVideo, {
publishedAfter: currentVideo.publishedAt,
maxResults: 1
});
return Math.max(0, Math.min(data.pageInfo.totalResults - 1, 500));
},
async getOlderVideos(currentVideo, pageToken) {
const data = await Api.performSearch(currentVideo, {
publishedBefore: currentVideo.publishedAt
}, pageToken);
return {
pageToken: data.nextPageToken,
videos: data.items.map(Api.parseVideo)
};
},
async getNewerVideos(currentVideo, pageToken) {
const data = await Api.performSearch(currentVideo, {
publishedAfter: currentVideo.publishedAt
}, pageToken);
return {
pageToken: data.prevPageToken,
videos: data.items.map(Api.parseVideo).filter(video => video.id !== currentVideo.id).reverse()
};
},
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,
olderVideos: [],
loading: false,
olderPageToken: null,
newerVideos: [],
newerPageToken: null,
position: 0,
get leftpx() {
return (this.newerVideos.length * -176) - (this.position * 176);
}
}),
actions: {
async fetchInitialVideos(model, currentVideoId) {
model.currentVideo = await Api.getVideo(currentVideoId);
const numNewerVideos = await Api.getNumNewerVideos(model.currentVideo);
this.loadOlder(model);
if (numNewerVideos > 0) {
const numOnLastPage = numNewerVideos % RESULTS_PER_FETCH;
const page = numNewerVideos - numOnLastPage;
if (page > 0) model.newerPageToken = Api.pageTokens[page];
this.loadNewer(model);
model.position = -1;
}
m.redraw();
},
async loadOlder(model, keepLoading = false) {
model.loading = true;
const results = await Api.getOlderVideos(model.currentVideo, model.olderPageToken);
model.olderVideos.push(...results.videos);
model.olderPageToken = results.pageToken;
if (!keepLoading) model.loading = false;
m.redraw();
},
async loadNewer(model, keepLoading = false) {
model.loading = true;
let results;
let timesTried = 0;
// dumb workaround for page token sometimes being incorrect
do {
results = await Api.getNewerVideos(model.currentVideo, model.newerPageToken);
model.newerPageToken = results.pageToken;
timesTried++;
} while (!results.videos.length && results.pageToken && timesTried < 5);
model.newerVideos.unshift(...results.videos.reverse());
if (!keepLoading) model.loading = false;
m.redraw();
},
async moveLeft(model) {
if (model.loading) return;
if (Math.abs(model.position - LAZY_LOAD_BUFFER) > model.newerVideos.length && model.newerPageToken) {
await this.loadNewer(model, true);
Util.delayedRedraw(() => {
model.position = Math.max(model.position - 1, -model.newerVideos.length);
model.loading = false;
});
} else {
model.position -= 1;
}
},
async moveRight(model) {
if (model.loading) return;
if (model.position + LAZY_LOAD_BUFFER > model.olderVideos.length && model.olderPageToken) {
await this.loadOlder(model, true);
Util.delayedRedraw(() => {
model.position = Math.min(model.position + 1, model.olderVideos.length);
model.loading = false;
});
} else {
model.position += 1;
}
}
},
oninit(vnode) {
const { model, actions } = vnode.state;
actions.fetchInitialVideos(model, vnode.attrs.videoId);
},
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.newerVideos.concat(model.olderVideos).map(video => {
return 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;
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=${model.video.id}` }, [
m('h3.style-scope.ytd-compact-video-renderer', [
m('span#video-title.style-scope.ytd-compact-video-renderer', { title: model.video.title }, model.video.title)
])
])
]);
}
})
};
let wait;
const mountId = `${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);
}
});
});
})();
