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Initial commit: MetonaEditor v0.1.0

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thzxx
2026-07-23 16:23:07 +08:00
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src/styles.js
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/**
* MetonaEditor Styles - 编辑器样式
* @module styles
* @version 0.1.0
* @description 编辑器 UI 样式注入与管理
*/
import { THEMES } from './constants.js';
let styleElement = null;
/**
* 生成 CSS 样式
*/
const generateCSS = () => {
return `
/* ============ CSS 变量默认值（被 themes.js 动态覆盖） ============ */
:root {
--md-bg: #ffffff;
--md-text: #1f2937;
--md-border: rgba(0, 0, 0, 0.08);
--md-shadow: 0 10px 36px -10px rgba(0,0,0,0.18), 0 4px 14px -4px rgba(0,0,0,0.08);
--md-hover-shadow: 0 14px 48px -10px rgba(0,0,0,0.22), 0 6px 18px -4px rgba(0,0,0,0.10);
--md-toolbar-bg: rgba(248, 249, 250, 0.92);
--md-textarea-bg: #ffffff;
--md-preview-bg: #ffffff;
--md-code-bg: rgba(243, 244, 246, 1);
--md-code-text: #1f2937;
--md-accent: #3b82f6;
--md-muted: #6b7280;
--md-radius: 10px;
--md-font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
--md-mono: "SF Mono", "Cascadia Code", "Consolas", "Liberation Mono", "Courier New", monospace;
}
/* ============ 容器 ============ */
.me-wrapper {
display: flex;
flex-direction: column;
box-sizing: border-box;
border: 1px solid var(--md-border);
border-radius: var(--md-radius);
overflow: hidden;
background: var(--md-bg);
color: var(--md-text);
box-shadow: var(--md-shadow);
font-family: var(--md-font);
font-size: 14px;
line-height: 1.6;
position: relative;
transition: box-shadow 0.25s ease, border-color 0.25s ease;
width: 100%;
}
.me-wrapper:hover { box-shadow: var(--md-hover-shadow); }
.me-wrapper.me-disabled { opacity: 0.6; pointer-events: none; }
.me-wrapper * { box-sizing: border-box; }
.me-wrapper.me-fullscreen {
position: fixed;
top: 0; left: 0; right: 0; bottom: 0;
width: 100vw; height: 100vh;
z-index: 9999;
border-radius: 0;
border: 0;
}
/* ============ 工具栏 ============ */
.me-toolbar {
display: flex;
align-items: center;
flex-wrap: wrap;
gap: 2px;
padding: 6px 8px;
background: var(--md-toolbar-bg);
border-bottom: 1px solid var(--md-border);
backdrop-filter: blur(10px);
-webkit-backdrop-filter: blur(10px);
min-height: 40px;
}
.me-btn {
display: inline-flex;
align-items: center;
justify-content: center;
width: 30px; height: 30px;
padding: 0;
border: 0;
border-radius: 6px;
background: transparent;
color: var(--md-text);
cursor: pointer;
transition: background 0.15s ease, color 0.15s ease, transform 0.1s ease;
flex-shrink: 0;
}
.me-btn:hover { background: var(--md-code-bg); color: var(--md-accent); }
.me-btn:active { transform: scale(0.92); }
.me-btn.me-active { background: var(--md-accent); color: #fff; }
.me-btn:focus-visible { outline: 2px solid var(--md-accent); outline-offset: 1px; }
.me-btn svg { width: 17px; height: 17px; display: block; }
.me-btn span { font-size: 12px; font-weight: 500; }
.me-toolbar-sep {
display: inline-block;
width: 1px; height: 20px;
background: var(--md-border);
margin: 0 4px;
flex-shrink: 0;
}
.me-toolbar-group {
display: inline-flex;
gap: 2px;
margin-left: auto;
padding-left: 6px;
border-left: 1px solid var(--md-border);
}
.me-toolbar-group .me-btn { width: auto; padding: 0 8px; }
.me-toolbar-group .me-btn span { font-size: 12px; }
/* ============ 主体布局 ============ */
.me-body {
display: flex;
flex: 1;
min-height: 0;
position: relative;
}
.me-editor-pane, .me-preview-pane {
flex: 1 1 50%;
min-width: 0;
overflow: hidden;
position: relative;
}
.me-divider {
flex: 0 0 1px;
background: var(--md-border);
cursor: col-resize;
position: relative;
}
.me-divider::after {
content: '';
position: absolute;
top: 0; bottom: 0; left: -3px; right: -3px;
}
.me-divider:hover { background: var(--md-accent); }
/* 编辑区 */
.me-textarea {
width: 100%;
height: 100%;
padding: 16px 18px;
border: 0;
outline: 0;
resize: none;
background: var(--md-textarea-bg);
color: var(--md-text);
font-family: var(--md-mono);
font-size: 13.5px;
line-height: 1.7;
tab-size: 2;
-moz-tab-size: 2;
display: block;
white-space: pre-wrap;
word-wrap: break-word;
}
.me-textarea::placeholder { color: var(--md-muted); opacity: 0.7; }
.me-textarea:focus { outline: 0; }
/* 预览区 */
.me-preview-pane { overflow: auto; background: var(--md-preview-bg); }
.me-preview {
padding: 18px 22px;
max-width: 100%;
word-wrap: break-word;
overflow-wrap: break-word;
}
/* 模式切换 */
.me-body.me-mode-edit .me-preview-pane,
.me-body.me-mode-edit .me-divider { display: none; }
.me-body.me-mode-edit .me-editor-pane { flex: 1 1 100%; }
.me-body.me-mode-preview .me-editor-pane,
.me-body.me-mode-preview .me-divider { display: none; }
.me-body.me-mode-preview .me-preview-pane { flex: 1 1 100%; }
/* ============ 预览区排版 ============ */
.me-preview > :first-child { margin-top: 0; }
.me-preview > :last-child { margin-bottom: 0; }
.me-preview h1, .me-preview h2, .me-preview h3,
.me-preview h4, .me-preview h5, .me-preview h6 {
margin: 1.4em 0 0.6em;
font-weight: 650;
line-height: 1.3;
}
.me-preview h1 { font-size: 1.9em; padding-bottom: 0.3em; border-bottom: 1px solid var(--md-border); }
.me-preview h2 { font-size: 1.55em; padding-bottom: 0.3em; border-bottom: 1px solid var(--md-border); }
.me-preview h3 { font-size: 1.3em; }
.me-preview h4 { font-size: 1.12em; }
.me-preview h5 { font-size: 1em; }
.me-preview h6 { font-size: 0.9em; color: var(--md-muted); }
.me-preview p { margin: 0.7em 0; }
.me-preview a { color: var(--md-accent); text-decoration: none; }
.me-preview a:hover { text-decoration: underline; }
.me-preview strong { font-weight: 650; }
.me-preview em { font-style: italic; }
.me-preview del { text-decoration: line-through; opacity: 0.75; }
.me-preview ul, .me-preview ol { margin: 0.6em 0; padding-left: 1.6em; }
.me-preview li { margin: 0.25em 0; }
.me-preview li.me-task-item { list-style: none; margin-left: -1.4em; }
.me-preview li.me-task-item input { margin-right: 0.5em; vertical-align: middle; }
.me-preview blockquote {
margin: 0.8em 0;
padding: 0.4em 1em;
border-left: 3px solid var(--md-accent);
background: var(--md-code-bg);
border-radius: 0 6px 6px 0;
color: var(--md-text);
}
.me-preview blockquote > :first-child { margin-top: 0; }
.me-preview blockquote > :last-child { margin-bottom: 0; }
.me-preview hr {
border: 0;
height: 1px;
background: var(--md-border);
margin: 1.6em 0;
}
.me-preview code {
font-family: var(--md-mono);
font-size: 0.88em;
padding: 0.15em 0.4em;
background: var(--md-code-bg);
color: var(--md-code-text);
border-radius: 4px;
}
.me-preview pre {
margin: 0.9em 0;
padding: 14px 16px;
background: var(--md-code-bg);
border-radius: 8px;
overflow-x: auto;
border: 1px solid var(--md-border);
}
.me-preview pre code {
padding: 0;
background: transparent;
color: var(--md-code-text);
font-size: 0.9em;
line-height: 1.6;
border-radius: 0;
}
.me-preview img {
max-width: 100%;
height: auto;
border-radius: 6px;
vertical-align: middle;
}
.me-table-wrap { overflow-x: auto; margin: 0.9em 0; }
.me-preview table {
border-collapse: collapse;
width: 100%;
font-size: 0.93em;
display: block;
}
.me-preview th, .me-preview td {
border: 1px solid var(--md-border);
padding: 7px 12px;
text-align: left;
}
.me-preview th {
background: var(--md-code-bg);
font-weight: 600;
}
.me-preview tr:nth-child(even) td { background: var(--md-code-bg); }
.me-preview tr:nth-child(even) td { background-color: color-mix(in srgb, var(--md-code-bg) 40%, transparent); }
/* ============ 状态栏 ============ */
.me-statusbar {
display: flex;
align-items: center;
justify-content: flex-end;
gap: 14px;
padding: 4px 12px;
border-top: 1px solid var(--md-border);
background: var(--md-toolbar-bg);
color: var(--md-muted);
font-size: 12px;
min-height: 26px;
}
.me-statusbar:empty { display: none; }
/* ============ 响应式 ============ */
@media (max-width: 768px) {
.me-body.me-mode-split {
flex-direction: column;
}
.me-body.me-mode-split .me-divider {
flex: 0 0 1px;
width: 100%;
height: 1px;
cursor: row-resize;
}
.me-body.me-mode-split .me-divider::after {
top: -3px; bottom: -3px; left: 0; right: 0;
}
.me-body.me-mode-split .me-editor-pane,
.me-body.me-mode-split .me-preview-pane {
flex: 1 1 50%;
width: 100%;
}
.me-toolbar { padding: 4px; }
.me-btn { width: 28px; height: 28px; }
.me-preview { padding: 14px; }
.me-textarea { padding: 12px; font-size: 13px; }
}
/* ============ 无障碍 ============ */
.me-wrapper:focus-within {
border-color: var(--md-accent);
}
.me-textarea:focus-visible { outline: 0; }
/* ============ 动画 ============ */
@media (prefers-reduced-motion: reduce) {
.me-wrapper, .me-btn, .me-textarea { transition: none !important; }
}
/* ============ 全屏模式优化 ============ */
.me-wrapper.me-fullscreen .me-preview,
.me-wrapper.me-fullscreen .me-textarea { font-size: 15px; }
`;
};
/**
* 注入样式（单例）
*/
export const injectStyles = () => {
if (typeof document === 'undefined') return;
if (styleElement && document.getElementById('metona-editor-styles')) return;
const css = generateCSS();
styleElement = document.createElement('style');
styleElement.id = 'metona-editor-styles';
styleElement.textContent = css.replace(/\s+/g, ' ');
document.head.appendChild(styleElement);
};
/**
* 更新样式
*/
export const updateStyles = () => {
if (!styleElement) { injectStyles(); return; }
styleElement.textContent = generateCSS().replace(/\s+/g, ' ');
};
/**
* 移除样式
*/
export const removeStyles = () => {
if (styleElement && styleElement.parentNode) {
styleElement.parentNode.removeChild(styleElement);
}
styleElement = null;
};
/**
* 获取系统主题
*/
export const getSystemTheme = () => {
if (typeof window === 'undefined') return 'light';
return window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light';
};
/**
* 监听系统主题变化
*/
export const watchSystemTheme = (callback) => {
if (typeof window === 'undefined' || !window.matchMedia) return () => {};
const mediaQuery = window.matchMedia('(prefers-color-scheme: dark)');
const handler = (e) => callback(e.matches ? 'dark' : 'light');
mediaQuery.addEventListener('change', handler);
return () => mediaQuery.removeEventListener('change', handler);
};
export { THEMES };
export default { injectStyles, updateStyles, removeStyles, getSystemTheme, watchSystemTheme };