Add Speed Slider to Youtube Player Settings
目前为
// ==UserScript==
// @name Youtube Player Speed Slider
// @namespace youtube_player_speed_slider
// @version 0.4.0
// @description Add Speed Slider to Youtube Player Settings
// @author Łukasz
// @match https://*.youtube.com/*
// @grant none
// ==/UserScript==
const YTS_BUILD_TIMEOUT = 500;
const YTS_REMOVE_TIMEOUT = 1000;
const el = {
menu: null,
icon: null,
label: null,
check: null,
slider: null,
player: null,
}
let yts_event_em_speed = false;
let yts_event_player = false;
const yts_r = 'yts_r';
const yts_s = 'yts_s';
/*************************************
* INIT *
************************************/
function ytsInit() {
$yts.event(document, "spfdone", function () {
ytsInitPlayer();
});
ytsReopenMenu();
ytsBuildApp();
}
function ytsBuildApp() {
el.menu = $yts.get('.ytp-panel-menu');
console.log(el.menu);
if (el.menu !== null) {
setTimeout(ytsRemoveDefaultSpeed, YTS_REMOVE_TIMEOUT);
ytsInitSlider();
ytsInitMenu();
ytsInitPlayer();
} else {
setTimeout(ytsBuildApp, YTS_BUILD_TIMEOUT);
}
}
/*************************************
* MENU *
************************************/
function ytsInitMenu() {
el.icon.innerHTML = '<svg height="24" viewBox="0 0 24 24" width="24"><path d="M10,8v8l6-4L10,8L10,8z M6.3,5L5.7,4.2C7.2,3,9,2.2,11,2l0.1,1C9.3,3.2,7.7,3.9,6.3,5z M5,6.3L4.2,5.7C3,7.2,2.2,9,2,11 l1,.1C3.2,9.3,3.9,7.7,5,6.3z M5,17.7c-1.1-1.4-1.8-3.1-2-4.8L2,13c0.2,2,1,3.8,2.2,5.4L5,17.7z M11.1,21c-1.8-0.2-3.4-0.9-4.8-2 l-0.6,.8C7.2,21,9,21.8,11,22L11.1,21z M22,12c0-5.2-3.9-9.4-9-10l-0.1,1c4.6,.5,8.1,4.3,8.1,9s-3.5,8.5-8.1,9l0.1,1 C18.2,21.5,22,17.2,22,12z" fill="white"></path></svg>'
const speedMenu = $yts.new('div', {'className': 'ytp-menuitem', id: 'yts-menu'});
const right = $yts.new('div', {'className': 'ytp-menuitem-content'});
right.appendChild(el.check);
right.appendChild(el.slider);
speedMenu.appendChild(el.icon);
speedMenu.appendChild(el.label);
speedMenu.appendChild(right);
el.menu.appendChild(speedMenu);
}
function ytsRemoveDefaultSpeed() {
const switchers = $yts.getOpt(".ytp-menuitem", {role: 'menuitemcheckbox'});
let toRemove = null;
if (!ytsPlayerHasClass('ad-interrupting') && switchers && switchers.length && !yts_event_em_speed) {
toRemove = switchers[switchers.length - 1].nextElementSibling;
if (toRemove && toRemove.id !== 'yts-menu') {
$yts.style(toRemove, 'display', 'none');
yts_event_em_speed = true;
}
}
}
function ytsReopenMenu() {
const settings_button = $yts.get(".ytp-settings-button");
settings_button && settings_button.click();
settings_button && settings_button.click();
}
/*************************************
* SLIDER *
************************************/
function ytsInitSlider() {
const rem = ytsParam(yts_r);
let speed = ytsParam(yts_s) || 1;
speed = rem ? speed : 1;
el.icon = $yts.new('div', {'className': 'ytp-menuitem-icon'});
el.label = $yts.new('div', {'className': 'ytp-menuitem-label'});
el.check = $yts.new('input', {
'type': 'checkbox',
'title': 'Remember speed',
style: {
'accent-color': '#f00',
'width': '20px',
'height': '20px',
'margin': '0',
'padding': '0'
}
});
el.slider = $yts.new('input', {
'type': 'range',
'min': 0.5,
'max': 4,
'step': 0.1,
'value': speed,
style: {
'accent-color': '#f00',
'width': 'calc(100% - 30px)',
'margin': '0 5px',
'padding': '0'
}
});
if (rem) {
el.check.checked = true;
}
$yts.event(el.slider, 'change', ytsChangeSlider);
$yts.event(el.check, 'change', ytsChangeRemember);
$yts.event(el.slider, 'input', ytsChangeSlider);
$yts.event(el.slider, 'wheel', ytsWheelSlider);
ytsUpdateSliderLabel(speed);
}
function ytsWheelSlider(event) {
let val = parseFloat(event.target.value) + (event.wheelDelta > 0 ? 0.1 : -0.1);
val = val < 0.5 ? 0.5 : (val > 4 ? 4 : val);
if (event.target.value !== val) {
event.target.value = val;
ytsUpdateSliderLabel(val);
}
event.preventDefault();
}
function ytsChangeSlider(event) {
ytsUpdateSliderLabel(event.target.value);
}
function ytsChangeRemember() {
ytsParam(yts_r, ytsParam(yts_r) ? 0 : 1);
}
function ytsUpdateSliderLabel(val) {
ytsSetPlayerDuration(val);
el.label.innerHTML = 'Speed: ' + parseFloat(val).toFixed(1);
}
/*************************************
* PLAYER *
************************************/
function ytsInitPlayer() {
el.player = $yts.get('.html5-main-video');
ytsObservePlayer();
if (ytsParam(yts_s) && ytsParam(yts_r)) {
ytsSetPlayerDuration(ytsParam(yts_s));
ytsUpdateSliderLabel(ytsParam(yts_s));
}
}
function ytsPlayerHasClass(cls) {
ytsInitPlayer();
return el.player && el.player.classList.contains(cls)
}
function ytsSetPlayerDuration(value) {
ytsParam(yts_s, value);
if (el.player) {
el.player.playbackRate = value;
}
}
function ytsObservePlayer() {
if (!yts_event_player) {
ytsObserver(el.player.parentNode.parentNode, function (mutation) {
if (/html5-video-player/.test(mutation.target.className) && !yts_event_em_speed) {
ytsRemoveDefaultSpeed();
}
});
yts_event_player = true;
}
}
/************************************
* DOM *
************************************/
$yts = {
'event': function (obj, event, callback) {
obj.addEventListener(event, callback);
},
'new': function (tag, option) {
const element = document.createElement(tag);
for (let param in option) {
if (param === 'data' || param === 'style' || param === 'attr') {
for (let data in option[param]) {
$yts[param](element, data, option[param][data]);
}
} else {
element[param] = option[param];
}
}
return element;
},
'get': function (tselector, all) {
all = all || false;
const type = tselector.substring(0, 1);
const selector = tselector.substring(1);
let elements;
if (type === "#") {
return document.getElementById(selector);
} else if (type === ".") {
elements = document.getElementsByClassName(selector);
} else {
elements = document.querySelectorAll(tselector);
}
if (all) {
return elements;
} else {
return elements.length ? elements[0] : null;
}
},
'data': function (elem, key, val) {
key = key.replace(/-(\w)/gi, function (x) {
return x.charAt(1).toUpperCase()
});
if (typeof val !== 'undefined') {
elem.dataset[key] = val;
}
return elem.dataset[key];
},
'style': function (elem, key, val, priority) {
priority = priority || '';
if (typeof val !== 'undefined') {
elem.style.setProperty(key, val, priority);
}
return elem.style.getPropertyValue(key);
},
'attr': function (elem, key, val) {
if (typeof val !== 'undefined') {
elem.setAttribute(key, val);
}
return elem.getAttribute(key);
},
'getOpt': function (selector, option) {
const el = $yts.get(selector, true);
const pass = [];
let correct;
for (let i = 0; i < el.length; i++) {
correct = true;
for (let prop in option) {
if (!$yts.has(el[i], prop, option[prop])) {
correct = false;
break;
}
}
if (correct) {
pass.push(el[i]);
}
}
return pass;
},
'has': function (elem, key, val) {
if (elem.hasAttribute(key)) {
const attr = elem.getAttribute(key);
if (val !== null) {
return attr === val;
}
return true;
}
return false;
}
};
/*************************************
* OBSERVER *
************************************/
function ytsObserver(element, callback) {
const MutationObserver = window.MutationObserver || window.WebKitMutationObserver;
if (MutationObserver) {
const obs = new MutationObserver(function (mutations) {
callback(mutations[0]);
});
obs.observe(element, {
childList: true,
subtree: true,
attributes: true,
characterData: true,
attributeOldValue: true,
characterDataOldValue: true
});
}
}
function ytsParam(key, val) {
if (typeof val !== 'undefined') {
localStorage.setItem(key, val);
}
return parseFloat(localStorage.getItem(key));
}
ytsInit();