Search YouTube without interrupting the video, by loading the search results in the related video bar
当前为
// ==UserScript==
// @name Youtube - Search While Watching Video
// @version 2.3.1
// @description Search YouTube without interrupting the video, by loading the search results in the related video bar
// @author Cpt_mathix
// @match https://www.youtube.com/*
// @license GPL-2.0-or-later
// @require https://cdnjs.cloudflare.com/ajax/libs/JavaScript-autoComplete/1.0.4/auto-complete.min.js
// @namespace https://greasyfork.org/users/16080
// @run-at document-start
// @grant none
// @noframes
// ==/UserScript==
/* jshint esversion: 6 */
(function() {
'use strict';
function youtube_search_while_watching_video() {
var script = {
initialized: false,
ytplayer: null,
search_bar: null,
search_timeout: null,
search_suggestions: [],
searched: false,
debug: false
};
document.addEventListener("DOMContentLoaded", initScript);
// reload script on page change using youtube polymer fire events
window.addEventListener("yt-page-data-updated", function(event) {
if (script.debug) { console.log("# page updated #"); }
startScript(2);
});
function initScript() {
if (script.debug) { console.log("### Youtube Search While Watching Video Initializing ###"); }
initSearch();
injectCSS();
if (script.debug) { console.log("### Youtube Search While Watching Video Initialized ###"); }
script.initialized = true;
startScript(5);
}
function startScript(retry) {
if (script.initialized && isPlayerAvailable()) {
if (script.debug) { console.log("videoplayer is available"); }
if (script.debug) { console.log("ytplayer: ", script.ytplayer); }
if (script.ytplayer) {
try {
if (script.debug) { console.log("initializing search"); }
loadSearch();
} catch (error) {
console.log("Failed to initialize search: ", (script.debug) ? error : error.message);
}
}
} else if (retry > 0) { // fix conflict with Youtube+ script
setTimeout( function() {
startScript(--retry);
}, 1000);
} else {
if (script.debug) { console.log("videoplayer is unavailable"); }
}
}
// *** VIDEOPLAYER *** //
function getVideoPlayer() {
return document.getElementById('movie_player');
}
function isPlayerAvailable() {
script.ytplayer = getVideoPlayer();
return script.ytplayer !== null && script.ytplayer.getVideoData().video_id;
}
function isPlaylist() {
return script.ytplayer.getVideoStats().list;
}
function isLivePlayer() {
return script.ytplayer.getVideoData().isLive;
}
// *** SEARCH *** //
function initSearch() {
// callback function for search suggestion results
window.suggestions_callback = suggestionsCallback;
}
function loadSearch() {
// prevent double searchbar
var playlistOrLiveSearchBar = document.querySelector('#suggestions-search.playlist-or-live');
if (playlistOrLiveSearchBar) { playlistOrLiveSearchBar.remove(); }
var searchbar = document.getElementById('suggestions-search');
if (!searchbar) {
createSearchBar();
} else {
searchbar.value = "";
}
script.searched = false;
cleanupSuggestionRequests();
}
function createSearchBar() {
var anchor, html;
anchor = document.querySelector('ytd-compact-autoplay-renderer > #contents');
if (anchor) {
html = "<input id=\"suggestions-search\" type=\"search\" placeholder=\"Search\">";
anchor.insertAdjacentHTML("afterend", html);
} else { // playlist, live video or experimental youtube layout (where autoplay is not a separate renderer anymore)
anchor = document.querySelector('#related > ytd-watch-next-secondary-results-renderer');
if (anchor) {
html = "<input id=\"suggestions-search\" class=\"playlist-or-live\" type=\"search\" placeholder=\"Search\">";
anchor.insertAdjacentHTML("beforebegin", html);
}
}
var searchBar = document.getElementById('suggestions-search');
if (searchBar) {
script.search_bar = searchBar;
new window.autoComplete({
selector: '#suggestions-search',
minChars: 1,
delay: 250,
source: function(term, suggest) {
suggest(script.search_suggestions);
},
onSelect: function(event, term, item) {
prepareNewSearchRequest(term);
}
});
script.search_bar.addEventListener("keyup", function(event) {
if (this.value === "") {
resetSuggestions();
} else {
searchSuggestions(this.value);
}
});
// seperate keydown listener because the search listener blocks keyup..?
script.search_bar.addEventListener("keydown", function(event) {
const ENTER = 13;
if (this.value.trim() !== "" && (event.key == "Enter" || event.keyCode === ENTER)) {
prepareNewSearchRequest(this.value.trim());
}
});
script.search_bar.addEventListener("search", function(event) {
if(this.value === "") {
script.search_bar.blur(); // close search suggestions dropdown
script.search_suggestions = []; // clearing the search suggestions
resetSuggestions();
}
});
script.search_bar.addEventListener("focus", function(event) {
this.select();
});
}
}
// callback from search suggestions attached to window
function suggestionsCallback(data) {
var raw = data[1]; // extract relevant data from json
var suggestions = raw.map(function(array) {
return array[0]; // change 2D array to 1D array with only suggestions
});
if (script.debug) { console.log(suggestions); }
script.search_suggestions = suggestions;
}
function searchSuggestions(value) {
if (script.search_timeout !== null) { clearTimeout(script.search_timeout); }
// youtube search parameters
const GeoLocation = window.yt.config_.INNERTUBE_CONTEXT_GL;
const HostLanguage = window.yt.config_.INNERTUBE_CONTEXT_HL;
// only allow 1 suggestion request every 100 milliseconds
script.search_timeout = setTimeout(function() {
if (script.debug) { console.log("suggestion request send", this.searchValue); }
var scriptElement = document.createElement("script");
scriptElement.type = "text/javascript";
scriptElement.className = "suggestion-request";
scriptElement.src = "https://clients1.google.com/complete/search?client=youtube&hl=" + HostLanguage + "&gl=" + GeoLocation + "&gs_ri=youtube&ds=yt&q=" + encodeURIComponent(this.searchValue) + "&callback=suggestions_callback";
(document.body || document.head || document.documentElement).appendChild(scriptElement);
}.bind({searchValue:value}), 100);
}
function cleanupSuggestionRequests() {
var requests = document.getElementsByClassName('suggestion-request');
forEachReverse(requests, function(request) {
request.remove();
});
}
// send new search request (with the search bar)
function prepareNewSearchRequest(value) {
if (script.debug) { console.log("searching for " + value); }
script.search_bar.blur(); // close search suggestions dropdown
script.search_suggestions = []; // clearing the search suggestions
sendSearchRequest("https://www.youtube.com/results?pbj=1&search_query=" + encodeURIComponent(value));
}
// given the url, retrieve the search results
function sendSearchRequest(url) {
var xmlHttp = new XMLHttpRequest();
xmlHttp.onreadystatechange = function() {
if (xmlHttp.readyState == 4 && xmlHttp.status == 200) {
processSearch(xmlHttp.responseText);
}
};
xmlHttp.open("GET", url, true);
xmlHttp.setRequestHeader("x-youtube-client-name", window.yt.config_.INNERTUBE_CONTEXT_CLIENT_NAME);
xmlHttp.setRequestHeader("x-youtube-client-version", window.yt.config_.INNERTUBE_CONTEXT_CLIENT_VERSION);
xmlHttp.setRequestHeader("x-youtube-client-utc-offset", new Date().getTimezoneOffset() * -1);
if (window.yt.config_.ID_TOKEN) { // null if not logged in
xmlHttp.setRequestHeader("x-youtube-identity-token", window.yt.config_.ID_TOKEN);
}
xmlHttp.send(null);
}
// process search request
function processSearch(responseText) {
try {
var data = JSON.parse(responseText);
var found = searchJson(data, (key, value) => {
if (key === "itemSectionRenderer") {
if (script.debug) { console.log(value.contents); }
createSuggestions(value.contents);
return true;
}
return false;
});
if (!found) {
alert("The search request was succesful but the script was unable to parse the results");
}
} catch (error) {
alert("Failed to retrieve search data, sorry!\nError message: " + error.message + "\nSearch response: " + responseText);
}
}
function searchJson(json, func) {
var found = false;
for (var item in json) {
found = func.apply(this, [item, json[item]]);
if (found) { break; }
if (json[item] !== null && typeof(json[item]) == "object") {
found = searchJson(json[item], func);
if (found) { break; }
}
}
return found;
}
// *** HTML & CSS *** //
function createSuggestions(data) {
// remove current suggestions
var watchRelated = document.querySelector('#related ytd-watch-next-secondary-results-renderer #items ytd-item-section-renderer #contents') || document.querySelector('#related ytd-watch-next-secondary-results-renderer #items');
forEachReverse(watchRelated.children, function(item) {
if (item.tagName !== "YTD-COMPACT-AUTOPLAY-RENDERER") {
item.remove();
}
});
// create suggestions
forEach(data, function(videoData) {
if (videoData.videoRenderer || videoData.compactVideoRenderer) {
window.Polymer.dom(watchRelated).appendChild(videoQueuePolymer(videoData.videoRenderer || videoData.compactVideoRenderer, "ytd-compact-video-renderer"));
} else if (videoData.radioRenderer || videoData.compactRadioRenderer) {
window.Polymer.dom(watchRelated).appendChild(videoQueuePolymer(videoData.radioRenderer || videoData.compactRadioRenderer, "ytd-compact-radio-renderer"));
} else if (videoData.playlistRenderer || videoData.compactPlaylistRenderer) {
window.Polymer.dom(watchRelated).appendChild(videoQueuePolymer(videoData.playlistRenderer || videoData.compactPlaylistRenderer, "ytd-compact-playlist-renderer"));
}
});
script.searched = true;
}
function resetSuggestions() {
if (script.searched) {
var itemSectionRenderer = document.querySelector('#related ytd-watch-next-secondary-results-renderer #items ytd-item-section-renderer') || document.querySelector("#related ytd-watch-next-secondary-results-renderer");
var data = itemSectionRenderer.__data.data;
createSuggestions(data.contents || data.results);
}
script.searched = false;
}
function videoQueuePolymer(videoData, type) {
let node = document.createElement(type);
node.classList.add("style-scope", "ytd-watch-next-secondary-results-renderer", "yt-search-generated");
node.data = videoData;
return node;
}
function injectCSS() {
var css = `
.autocomplete-suggestions {
text-align: left; cursor: default; border: 1px solid var(--ytd-searchbox-legacy-border-color); border-top: 0; background: var(--ytd-searchbox-background);
position: absolute; display: none; z-index: 9999; max-height: 254px; overflow: hidden; overflow-y: auto; box-sizing: border-box; box-shadow: -1px 1px 3px rgba(0,0,0,.1);
}
.autocomplete-suggestion { position: relative; padding: 0 .6em; line-height: 23px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-size: 1.22em; color: var(--ytd-searchbox-text-color); }
.autocomplete-suggestion b { font-weight: normal; color: #b31217; }
.autocomplete-suggestion.selected { background: #ddd; }
[dark] .autocomplete-suggestion.selected { background: #333; }
ytd-compact-autoplay-renderer { padding-bottom: 0px; }
#suggestions-search {
outline: none; width: 100%; padding: 6px 5px; margin-bottom: 16px;
border: 1px solid var(--ytd-searchbox-legacy-border-color); border-radius: 2px 0 0 2px;
box-shadow: inset 0 1px 2px var(--ytd-searchbox-legacy-border-shadow-color);
color: var(--ytd-searchbox-text-color); background-color: var(--ytd-searchbox-background);
}
`;
var style = document.createElement("style");
style.type = "text/css";
if (style.styleSheet){
style.styleSheet.cssText = css;
} else {
style.appendChild(document.createTextNode(css));
}
(document.body || document.head || document.documentElement).appendChild(style);
}
// *** FUNCTIONALITY *** //
function forEach(array, callback, scope) {
for (var i = 0; i < array.length; i++) {
callback.call(scope, array[i], i);
}
}
// When you want to remove elements
function forEachReverse(array, callback, scope) {
for (var i = array.length - 1; i >= 0; i--) {
callback.call(scope, array[i], i);
}
}
}
if (!document.getElementById("autocomplete_script")) {
var autoCompleteScript = document.createElement('script');
autoCompleteScript.id = "autocomplete_script";
autoCompleteScript.appendChild(document.createTextNode('window.autoComplete = ' + autoComplete + ';'));
(document.body || document.head || document.documentElement).appendChild(autoCompleteScript);
}
if (!document.getElementById("search_while_watching_video")) {
var searchWhileWatchingVideoScript = document.createElement('script');
searchWhileWatchingVideoScript.id = "search_while_watching_video";
searchWhileWatchingVideoScript.appendChild(document.createTextNode('('+ youtube_search_while_watching_video +')();'));
(document.body || document.head || document.documentElement).appendChild(searchWhileWatchingVideoScript);
}
})();