Zero-CSS and Zer-Config Native YouTube web components engine
此脚本不应直接安装。它是供其他脚本使用的外部库，要使用该库请加入元指令 // @require https://update.greasyfork.org/scripts/591892/1906143/YTCoreUI.js
// ==UserScript==
// @name YTCoreUI
// @namespace https://rvfet.com/
// @author https://github.com/rvfet
// @version 2.0.0
// @description Zero-CSS and Zer-Config Native YouTube web components engine
// @match https://www.youtube.com/*
// @grant none
// @license MIT
// @run-at document-start
// ==/UserScript==
(function () {
'use strict';
// 1. Google Material Symbols Font Loader
(function ensureMaterialSymbols() {
const ID = 'yt-material-symbols-font';
if (document.getElementById(ID)) return;
const link = document.createElement('link');
link.id = ID;
link.rel = 'stylesheet';
link.href = 'https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,[email protected],400,0..1,0';
(document.head || document.documentElement).appendChild(link);
})();
// 2. Micro Hyperscript DOM Builder
function h(tag, attrs = {}, ...children) {
const el = document.createElement(tag);
for (const [k, v] of Object.entries(attrs)) {
if (v == null) continue;
if (k.startsWith('on') && typeof v === 'function') el.addEventListener(k.slice(2).toLowerCase(), v);
else if (k === 'className' || k === 'class') el.className = v;
else if (k === 'style' && typeof v === 'object') Object.assign(el.style, v);
else if (typeof v === 'boolean') v ? el.setAttribute(k, '') : el.removeAttribute(k);
else el.setAttribute(k, String(v));
}
const append = (c) => {
if (c == null || c === false) return;
Array.isArray(c) ? c.forEach(append) : el.appendChild(c instanceof Node ? c : document.createTextNode(String(c)));
};
children.forEach(append);
return el;
}
// 3. Component Factory
const YTCoreUI = {
h,
icon(name, { size = 18, fill = false } = {}) {
return h('span', {
class: 'ytIconWrapperHost material-symbols-outlined',
style: {
fontSize: `${size}px`,
width: `${size}px`,
height: `${size}px`,
lineHeight: `${size}px`,
display: 'inline-flex',
alignItems: 'center',
justifyContent: 'center',
verticalAlign: 'middle',
userSelect: 'none',
color: 'inherit',
fontVariationSettings: `'FILL' ${fill ? 1 : 0}, 'wght' 400, 'opsz' ${size}`
}
}, name);
},
button({
text = '',
variant = 'secondary',
size = 'm',
icon = null,
iconPosition = 'leading',
disabled = false,
title = '',
onClick = null
} = {}) {
const variantCls = {
primary: 'ytSpecButtonShapeNextFilled ytSpecButtonShapeNextMono',
secondary: 'ytSpecButtonShapeNextTonal ytSpecButtonShapeNextMono',
outline: 'ytSpecButtonShapeNextOutline ytSpecButtonShapeNextMono',
text: 'ytSpecButtonShapeNextText ytSpecButtonShapeNextMono'
}[variant] || 'ytSpecButtonShapeNextTonal ytSpecButtonShapeNextMono';
const sizeCls = { s: 'ytSpecButtonShapeNextSizeS', m: 'ytSpecButtonShapeNextSizeM', l: 'ytSpecButtonShapeNextSizeL' }[size] || 'ytSpecButtonShapeNextSizeM';
const isIconOnly = Boolean(icon && !text);
const iconPosCls = isIconOnly ? 'ytSpecButtonShapeNextIconOnly' : icon ? (iconPosition === 'leading' ? 'ytSpecButtonShapeNextIconLeading' : 'ytSpecButtonShapeNextIconTrailing') : '';
const iconEl = icon ? h('div', {
'aria-hidden': 'true',
class: 'ytSpecButtonShapeNextIcon',
style: { display: 'inline-flex', alignItems: 'center', justifyContent: 'center', lineHeight: '0' }
}, typeof icon === 'string' ? YTCoreUI.icon(icon, { size: size === 's' ? 16 : 18 }) : icon) : null;
const textSpan = text ? h('div', {
class: 'ytSpecButtonShapeNextButtonTextContent',
style: { display: 'inline-flex', alignItems: 'center', lineHeight: 'normal' }
}, text) : null;
const children = [];
if (iconEl && (iconPosition === 'leading' || isIconOnly)) children.push(iconEl);
if (textSpan) children.push(textSpan);
if (iconEl && iconPosition === 'trailing' && !isIconOnly) children.push(iconEl);
children.push(h('yt-touch-feedback-shape', { 'aria-hidden': 'true', class: 'ytSpecTouchFeedbackShapeHost ytSpecTouchFeedbackShapeTouchResponse' },
h('div', { class: 'ytSpecTouchFeedbackShapeStroke' }),
h('div', { class: 'ytSpecTouchFeedbackShapeFill' })
));
const button = h('button', {
class: `ytSpecButtonShapeNextHost ${variantCls} ${sizeCls} ${iconPosCls} ytSpecButtonShapeNextEnableBackdropFilterExperiment ytSpecButtonShapeNextMainstagePadding`.trim(),
style: { display: 'inline-flex', alignItems: 'center', justifyContent: 'center' },
title: title || text,
disabled,
onClick: (e) => !button.disabled && onClick && onClick(e, container)
}, ...children);
const container = h('button-view-model', { class: 'ytSpecButtonViewModelHost' }, button);
container.button = button;
container.setText = (str) => { if (textSpan) textSpan.textContent = str; };
container.setDisabled = (st) => { button.disabled = Boolean(st); };
return container;
},
chip({ label = '', selected = false, icon = null, onClick = null } = {}) {
const chipBtn = YTCoreUI.button({
text: label,
variant: selected ? 'primary' : 'secondary',
size: 's',
icon,
onClick: (e) => {
const next = !chipWrapper.isSelected();
chipWrapper.setSelected(next);
if (onClick) onClick(next, e, chipWrapper);
}
});
const chipWrapper = h('yt-chip-shape', { class: 'ytChipShapeHost', 'aria-selected': selected }, chipBtn);
chipWrapper.setSelected = (st) => {
chipWrapper.setAttribute('aria-selected', String(st));
chipBtn.button.classList.toggle('ytSpecButtonShapeNextFilled', st);
chipBtn.button.classList.toggle('ytSpecButtonShapeNextTonal', !st);
};
chipWrapper.isSelected = () => chipWrapper.getAttribute('aria-selected') === 'true';
chipWrapper.getLabel = () => label;
return chipWrapper;
},
chipBar({ chips = [], selectedId = null, multiSelect = false, onChange = null } = {}) {
const instances = [];
const container = h('div', { style: { display: 'inline-flex', alignItems: 'center', gap: '8px' } });
chips.forEach((item, idx) => {
const id = item.id !== undefined ? item.id : idx;
const label = typeof item === 'string' ? item : item.label;
const el = YTCoreUI.chip({
label,
icon: item.icon,
selected: selectedId === id || Boolean(item.selected),
onClick: (st, e, target) => {
if (!multiSelect) instances.forEach((c) => c.id !== id && c.el.setSelected(false));
if (item.onClick) item.onClick(st, e, target);
if (onChange) onChange(group.getSelected(), id, target);
}
});
instances.push({ id, el });
container.appendChild(el);
});
const group = h('div', { class: 'ytChipCloudRendererHost', style: { display: 'inline-flex', alignItems: 'center' } }, container);
group.getSelected = () => {
const active = instances.filter((c) => c.el.isSelected());
return multiSelect ? active.map((c) => c.id) : (active[0]?.id ?? null);
};
return group;
},
searchbox({ placeholder = 'Search...', value = '', onSearch = null, onInput = null } = {}) {
const input = h('input', {
class: 'ytSearchboxComponentInput',
type: 'text',
placeholder,
value,
style: {
background: 'transparent',
border: 'none',
outline: 'none',
color: 'var(--yt-spec-text-primary, #fff)',
fontSize: '14px',
fontFamily: 'Roboto, Noto, sans-serif',
lineHeight: '20px',
width: '160px',
padding: '0 4px'
},
onInput: (e) => {
clear.style.display = e.target.value ? 'inline-flex' : 'none';
if (onInput) onInput(e.target.value, e);
},
onKeydown: (e) => {
if (e.key === 'Enter') { e.preventDefault(); if (onSearch) onSearch(input.value, e); }
}
});
const clear = h('div', {
style: { display: value ? 'inline-flex' : 'none', cursor: 'pointer', color: 'var(--yt-spec-text-secondary, #aaa)' },
onClick: () => { input.value = ''; clear.style.display = 'none'; input.focus(); onInput && onInput(''); }
}, YTCoreUI.icon('close', { size: 16 }));
const wrapper = h('div', {
class: 'ytSearchboxComponentInputBox ytSearchboxComponentInputBoxDark ytSearchboxComponentInputBoxShape',
style: {
display: 'inline-flex',
alignItems: 'center',
backgroundColor: 'var(--yt-spec-badge-chip-background, rgba(255, 255, 255, 0.1))',
color: 'var(--yt-spec-text-secondary, #aaa)',
borderRadius: '18px',
height: '36px',
padding: '0 12px',
boxSizing: 'border-box',
gap: '6px'
}
},
YTCoreUI.icon('search', { size: 18 }),
input,
clear
);
wrapper.getValue = () => input.value;
wrapper.setValue = (v) => { input.value = v; clear.style.display = v ? 'inline-flex' : 'none'; };
return wrapper;
},
select({
options = [],
value = null,
placeholder = 'Select option...',
multiple = false,
size = 'm',
onChange = null
} = {}) {
const normalizeValues = (v) => {
if (multiple) return Array.isArray(v) ? v.map(String) : (v != null ? [String(v)] : []);
return v != null ? [String(v)] : [];
};
let selectedState = new Set(normalizeValues(value));
let isOpen = false;
const triggerBtn = YTCoreUI.button({
text: placeholder,
variant: 'secondary',
size,
icon: 'expand_more',
iconPosition: 'trailing',
onClick: (e) => {
e.stopPropagation();
isOpen ? closeDropdown() : openDropdown();
}
});
const optionsList = h('div', {
class: 'style-scope ytd-menu-popup-renderer',
style: {
display: 'none',
position: 'absolute',
top: 'calc(100% + 6px)',
left: '0',
minWidth: '220px',
backgroundColor: 'var(--yt-spec-menu-background, var(--yt-spec-general-background-b, #282828))',
borderRadius: '12px',
boxShadow: 'var(--yt-spec-elevation-3, 0 4px 32px 0 rgba(0,0,0,0.4))',
border: '1px solid var(--yt-spec-10-percent-layer, rgba(255,255,255,0.1))',
padding: '8px 0',
zIndex: '2200',
maxHeight: '300px',
overflowY: 'auto',
boxSizing: 'border-box'
}
});
const optionRows = [];
const updateState = () => {
const selArray = Array.from(selectedState);
if (selArray.length === 0) {
triggerBtn.setText(placeholder);
} else if (multiple) {
if (selArray.length === 1) {
const match = options.find((o) => String(o.value !== undefined ? o.value : o) === selArray[0]);
triggerBtn.setText(match?.label ?? match ?? selArray[0]);
} else {
triggerBtn.setText(`${selArray.length} selected`);
}
} else {
const match = options.find((o) => String(o.value !== undefined ? o.value : o) === selArray[0]);
triggerBtn.setText(match?.label ?? match ?? selArray[0]);
}
optionRows.forEach(({ row, checkIcon, textNode, stringVal }) => {
const isSelected = selectedState.has(stringVal);
checkIcon.style.visibility = isSelected ? 'visible' : 'hidden';
textNode.style.fontWeight = isSelected ? '500' : '400';
textNode.style.color = isSelected ? 'var(--yt-spec-text-primary, #fff)' : 'var(--yt-spec-text-secondary, #aaa)';
row.setAttribute('aria-selected', isSelected ? 'true' : 'false');
});
};
options.forEach((opt) => {
const rawVal = opt.value !== undefined ? opt.value : opt;
const stringVal = String(rawVal);
const optLabel = opt.label !== undefined ? opt.label : opt;
const checkIcon = YTCoreUI.icon('check', { size: 18 });
checkIcon.style.color = 'var(--yt-spec-call-to-action, #3ea6ff)';
checkIcon.style.visibility = 'hidden';
const leadingIcon = opt.icon ? YTCoreUI.icon(opt.icon, { size: 20 }) : null;
if (leadingIcon) leadingIcon.style.color = 'var(--yt-spec-text-secondary, #aaa)';
const textNode = h('span', {
style: { flex: '1', lineHeight: 'normal', fontSize: '14px', color: 'var(--yt-spec-text-secondary, #aaa)' }
}, optLabel);
const row = h('div', {
class: 'style-scope ytd-menu-service-item-renderer',
role: 'option',
tabindex: '0',
style: {
display: 'flex',
alignItems: 'center',
gap: '14px',
padding: '0 16px',
height: '40px',
cursor: 'pointer',
userSelect: 'none',
whiteSpace: 'nowrap',
backgroundColor: 'transparent',
boxSizing: 'border-box'
},
onMouseenter: () => { row.style.backgroundColor = 'var(--yt-spec-badge-chip-background, rgba(255,255,255,0.1))'; },
onMouseleave: () => { row.style.backgroundColor = 'transparent'; },
onClick: (e) => {
e.stopPropagation();
if (multiple) {
selectedState.has(stringVal) ? selectedState.delete(stringVal) : selectedState.add(stringVal);
} else {
selectedState.clear();
selectedState.add(stringVal);
closeDropdown();
}
updateState();
if (onChange) {
const current = Array.from(selectedState).map((s) => {
const match = options.find((o) => String(o.value !== undefined ? o.value : o) === s);
return match?.value !== undefined ? match.value : (match ?? s);
});
onChange(multiple ? current : current[0], rawVal, e);
}
}
}, leadingIcon, textNode, checkIcon);
optionRows.push({ row, checkIcon, textNode, stringVal, rawVal });
optionsList.appendChild(row);
});
const openDropdown = () => {
isOpen = true;
optionsList.style.display = 'block';
setTimeout(() => document.addEventListener('click', outsideClickListener), 0);
};
const closeDropdown = () => {
isOpen = false;
optionsList.style.display = 'none';
document.removeEventListener('click', outsideClickListener);
};
const outsideClickListener = (e) => {
if (!container.contains(e.target)) closeDropdown();
};
const container = h('div', {
style: { position: 'relative', display: 'inline-flex', alignItems: 'center' }
}, triggerBtn, optionsList);
updateState();
container.getValue = () => {
const arr = Array.from(selectedState).map((s) => {
const match = options.find((o) => String(o.value !== undefined ? o.value : o) === s);
return match?.value !== undefined ? match.value : (match ?? s);
});
return multiple ? arr : (arr[0] ?? null);
};
container.setValue = (newVal) => {
selectedState = new Set(normalizeValues(newVal));
updateState();
};
return container;
}
};
// Export globally for consumers
window.YTCoreUI = YTCoreUI;
})();