519 lines
16 KiB
JavaScript
519 lines
16 KiB
JavaScript
(function () {
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'use strict';
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const DATA = window.__WEBOOK__;
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const navTree = DATA.nav || [];
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const themes = Array.isArray(DATA.themes) ? DATA.themes : [];
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const defaultFile = DATA.defaultFile;
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const initialContent = DATA.initialContent;
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// === DOM Elements ===
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const sidebarNav = document.getElementById('sidebarNav');
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const searchInput = document.getElementById('searchInput');
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const btnToggleSidebar = document.getElementById('btnToggleSidebar');
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const btnToggleTheme = document.getElementById('btnToggleTheme');
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const themeSelect = document.getElementById('themeSelect');
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const contentBody = document.getElementById('contentBody');
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const emptyState = document.getElementById('emptyState');
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const markdownContent = document.getElementById('markdownContent');
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const articleTitle = document.getElementById('articleTitle');
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const articleMeta = document.getElementById('articleMeta');
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const articleBody = document.getElementById('articleBody');
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const tocNav = document.getElementById('tocNav');
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const tocPanel = document.getElementById('tocPanel');
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const loadingBar = document.getElementById('loadingBar');
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const sidebar = document.getElementById('sidebar');
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const mobileNavBtn = document.getElementById('mobileNavBtn');
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const themeStylesheet = document.getElementById('themeStylesheet');
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const themeHighlightStylesheet = document.getElementById('themeHighlightStylesheet');
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let currentFile = null;
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const fallbackTheme = themes[0] || {
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id: 'default',
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label: 'Default',
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defaultMode: 'light',
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stylesheet: '/_webook/themes/default/theme.css',
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highlight: {
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light: '/_webook/themes/default/highlight-light.css',
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dark: '/_webook/themes/default/highlight-dark.css'
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}
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};
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// === Theme ===
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function getThemeConfig(themeId) {
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return themes.find((item) => item.id === themeId) || fallbackTheme;
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}
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function getStoredThemeId() {
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const stored = localStorage.getItem('webook-theme-id');
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if (stored && themes.some((item) => item.id === stored)) {
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return stored;
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}
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return DATA.initialThemeId || fallbackTheme.id;
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}
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function getStoredColorMode(themeId) {
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const stored = localStorage.getItem('webook-color-mode');
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if (stored === 'light' || stored === 'dark') {
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return stored;
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}
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const legacy = localStorage.getItem('webook-theme');
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if (legacy === 'light' || legacy === 'dark') {
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return legacy;
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}
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const theme = getThemeConfig(themeId);
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return theme.defaultMode === 'dark' ? 'dark' : 'light';
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}
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function renderThemeOptions() {
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if (!themeSelect) return;
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themeSelect.innerHTML = themes.map((item) => (
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`<option value="${escapeHtml(item.id)}">${escapeHtml(item.label)}</option>`
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)).join('');
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}
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function applyTheme(themeId, colorMode) {
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const theme = getThemeConfig(themeId);
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const mode = colorMode === 'dark' ? 'dark' : 'light';
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document.documentElement.setAttribute('data-theme-id', theme.id);
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document.documentElement.setAttribute('data-color-mode', mode);
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localStorage.setItem('webook-theme-id', theme.id);
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localStorage.setItem('webook-color-mode', mode);
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localStorage.setItem('webook-theme', mode);
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if (themeStylesheet) {
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themeStylesheet.href = theme.stylesheet;
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}
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if (themeHighlightStylesheet) {
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themeHighlightStylesheet.href = mode === 'dark' ? theme.highlight.dark : theme.highlight.light;
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}
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if (themeSelect) {
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themeSelect.value = theme.id;
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}
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btnToggleTheme.textContent = mode === 'dark' ? '☀︎' : '☾';
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btnToggleTheme.title = mode === 'dark' ? '切换到浅色模式' : '切换到深色模式';
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}
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function toggleColorMode() {
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const currentThemeId = getStoredThemeId();
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const currentMode = getStoredColorMode(currentThemeId);
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applyTheme(currentThemeId, currentMode === 'dark' ? 'light' : 'dark');
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}
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renderThemeOptions();
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applyTheme(getStoredThemeId(), getStoredColorMode(getStoredThemeId()));
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// === Sidebar Toggle ===
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function getSidebarVisible() {
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return localStorage.getItem('webook-sidebar') !== 'hidden';
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}
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function setSidebarVisible(visible) {
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if (visible) {
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sidebar.classList.remove('collapsed');
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localStorage.setItem('webook-sidebar', 'visible');
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btnToggleSidebar.textContent = '☰';
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} else {
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sidebar.classList.add('collapsed');
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localStorage.setItem('webook-sidebar', 'hidden');
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btnToggleSidebar.textContent = '☷';
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}
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}
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function toggleSidebar() {
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setSidebarVisible(sidebar.classList.contains('collapsed'));
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}
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// Initialize sidebar state
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setSidebarVisible(getSidebarVisible());
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// === Mobile Sidebar ===
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let sidebarOverlay = null;
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function createOverlay() {
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if (sidebarOverlay) return;
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sidebarOverlay = document.createElement('div');
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sidebarOverlay.className = 'sidebar-overlay';
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sidebarOverlay.addEventListener('click', hideMobileSidebar);
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document.body.appendChild(sidebarOverlay);
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}
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function showMobileSidebar() {
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createOverlay();
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sidebar.classList.add('mobile-visible');
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sidebar.classList.remove('collapsed');
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sidebarOverlay.classList.add('visible');
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}
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function hideMobileSidebar() {
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sidebar.classList.remove('mobile-visible');
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if (sidebarOverlay) {
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sidebarOverlay.classList.remove('visible');
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}
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// Restore collapsed state if needed
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if (!getSidebarVisible()) {
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sidebar.classList.add('collapsed');
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}
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}
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// === Navigation Rendering ===
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function renderNavTree(items, level = 0) {
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if (!items || items.length === 0) return '';
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let html = '<ul class="nav-tree">';
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for (const item of items) {
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if (item.type === 'dir') {
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html += `
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<li class="nav-dir collapsed" data-path="${escapeHtml(item.path)}">
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<div class="nav-dir-header" data-dir-path="${escapeHtml(item.path)}">
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<span class="nav-dir-arrow">▾</span>
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<span class="nav-dir-icon" aria-hidden="true"></span>
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<span class="nav-dir-name">${escapeHtml(item.name)}</span>
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</div>
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<div class="nav-dir-children">
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${renderNavTree(item.children, level + 1)}
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</div>
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</li>`;
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} else {
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const isActive = item.path === defaultFile;
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html += `
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<li class="nav-file${isActive ? ' active' : ''}" data-file-path="${escapeHtml(item.path)}">
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<span class="nav-file-icon" aria-hidden="true"></span>
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<span class="nav-file-name">${escapeHtml(item.meta ? item.meta.title : item.name)}</span>
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</li>`;
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}
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}
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html += '</ul>';
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return html;
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}
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function escapeHtml(str) {
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const div = document.createElement('div');
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div.textContent = str;
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return div.innerHTML;
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}
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// Render nav
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sidebarNav.innerHTML = renderNavTree(navTree);
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// === Navigation Events ===
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sidebarNav.addEventListener('click', function (e) {
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// Directory toggle
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const dirHeader = e.target.closest('.nav-dir-header');
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if (dirHeader) {
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const dirItem = dirHeader.parentElement;
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dirItem.classList.toggle('collapsed');
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return;
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}
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// File click
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const fileItem = e.target.closest('.nav-file');
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if (fileItem) {
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const filePath = fileItem.getAttribute('data-file-path');
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loadFile(filePath);
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setActiveFile(fileItem);
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// On mobile, hide sidebar after selection
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if (window.innerWidth <= 768) {
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hideMobileSidebar();
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}
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}
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});
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function setActiveFile(fileItem) {
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const prev = sidebarNav.querySelector('.nav-file.active');
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if (prev) prev.classList.remove('active');
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if (fileItem) fileItem.classList.add('active');
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}
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function findNavFileItem(filePath) {
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return sidebarNav.querySelector(`[data-file-path="${CSS.escape(filePath)}"]`);
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}
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// === Search ===
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searchInput.addEventListener('input', function () {
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const query = this.value.trim().toLowerCase();
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if (!query) {
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// Show all
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sidebarNav.querySelectorAll('.nav-hidden').forEach(el => el.classList.remove('nav-hidden'));
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removeEmptyMessage();
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return;
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}
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let hasVisible = false;
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// Process directories
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const dirs = sidebarNav.querySelectorAll('.nav-dir');
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dirs.forEach(dir => {
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let dirHasVisible = false;
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const files = dir.querySelectorAll('.nav-file');
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files.forEach(file => {
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const name = file.querySelector('.nav-file-name').textContent.toLowerCase();
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if (name.includes(query)) {
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file.classList.remove('nav-hidden');
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dirHasVisible = true;
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} else {
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file.classList.add('nav-hidden');
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}
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});
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// Show/hide directory
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if (dirHasVisible) {
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dir.classList.remove('nav-hidden', 'collapsed');
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hasVisible = true;
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} else {
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dir.classList.add('nav-hidden');
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}
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});
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// Root-level files
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const rootFiles = sidebarNav.querySelectorAll(':scope > .nav-tree > .nav-file');
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rootFiles.forEach(file => {
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const name = file.querySelector('.nav-file-name').textContent.toLowerCase();
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if (name.includes(query)) {
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file.classList.remove('nav-hidden');
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hasVisible = true;
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} else {
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file.classList.add('nav-hidden');
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}
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});
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if (!hasVisible) {
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showEmptyMessage('未找到匹配的文件');
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} else {
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removeEmptyMessage();
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}
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});
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function showEmptyMessage(msg) {
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removeEmptyMessage();
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const div = document.createElement('div');
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div.className = 'nav-empty';
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div.id = 'navEmptyMsg';
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div.textContent = msg;
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sidebarNav.appendChild(div);
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}
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function removeEmptyMessage() {
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const existing = document.getElementById('navEmptyMsg');
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if (existing) existing.remove();
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}
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// === File Loading ===
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async function loadFile(filePath) {
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if (currentFile === filePath) return;
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currentFile = filePath;
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showLoading();
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try {
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const resp = await fetch('/api/file?path=' + encodeURIComponent(filePath));
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const json = await resp.json();
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if (!json.success) {
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throw new Error(json.error || 'Failed to load file');
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}
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const data = json.data;
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// Update content
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emptyState.style.display = 'none';
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markdownContent.style.display = '';
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articleTitle.textContent = data.title;
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articleBody.innerHTML = data.html;
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buildTOC();
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renderArticleMeta(data.meta);
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// Scroll to top
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contentBody.scrollTop = 0;
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// Update URL hash
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if (history.pushState) {
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history.pushState(null, '', '#' + encodeURIComponent(filePath));
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}
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// Apply syntax highlighting to code blocks in content
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applyHighlighting();
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} catch (err) {
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emptyState.style.display = 'flex';
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emptyState.querySelector('p').textContent = '加载失败: ' + err.message;
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markdownContent.style.display = 'none';
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} finally {
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hideLoading();
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}
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}
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function showLoading() {
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loadingBar.classList.add('visible');
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loadingBar.classList.remove('done');
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}
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function hideLoading() {
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loadingBar.classList.add('done');
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setTimeout(() => {
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loadingBar.classList.remove('visible', 'done');
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}, 350);
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}
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function formatDate(isoStr) {
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if (!isoStr) return '-';
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const d = new Date(isoStr);
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const y = d.getFullYear();
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const m = String(d.getMonth() + 1).padStart(2, '0');
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const day = String(d.getDate()).padStart(2, '0');
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const h = String(d.getHours()).padStart(2, '0');
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const min = String(d.getMinutes()).padStart(2, '0');
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return `${y}-${m}-${day} ${h}:${min}`;
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}
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function applyHighlighting() {
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// highlight.js is loaded via CDN or bundled, but we handle it server-side.
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// If any code blocks need client-side highlighting, do it here.
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// For now, server-side rendering handles highlighting.
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}
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function renderArticleMeta(meta) {
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const created = formatDate(meta.created);
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const modified = formatDate(meta.modified);
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const wordCount = meta.wordCount;
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articleMeta.innerHTML = `
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<span class="article-meta-item">创建时间: ${created}</span>
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<span class="article-meta-item">修改时间: ${modified}</span>
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<span class="article-meta-item">字数统计: ${wordCount.toLocaleString()}</span>
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`;
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}
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function slugifyHeading(text, index) {
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return 'toc-' + text
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.toLowerCase()
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.replace(/['"`]/g, '')
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.replace(/[^a-z0-9\u4e00-\u9fff]+/g, '-')
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.replace(/^-+|-+$/g, '') + '-' + index;
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}
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function buildTOC() {
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if (!tocNav || !tocPanel) return;
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const headings = articleBody.querySelectorAll('h2, h3, h4');
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if (!headings.length) {
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tocPanel.classList.add('toc-empty');
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tocNav.innerHTML = '<div class="toc-empty-state">当前页面没有可用目录</div>';
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return;
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}
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tocPanel.classList.remove('toc-empty');
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const items = [];
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headings.forEach((heading, index) => {
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const level = Number(heading.tagName.slice(1));
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if (!heading.id) {
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heading.id = slugifyHeading(heading.textContent || 'section', index);
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}
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items.push({
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id: heading.id,
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text: heading.textContent.trim(),
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level
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});
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});
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tocNav.innerHTML = items.map((item) => `
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<button class="toc-link toc-level-${item.level}" type="button" data-target="${escapeHtml(item.id)}">
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<span class="toc-bullet"></span>
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<span class="toc-text">${escapeHtml(item.text)}</span>
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</button>
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`).join('');
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}
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function scrollToHeading(targetId) {
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if (!targetId) return;
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const target = articleBody.querySelector(`#${CSS.escape(targetId)}`);
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if (!target) return;
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target.scrollIntoView({ behavior: 'smooth', block: 'start' });
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}
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// === Initial Load ===
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if (initialContent) {
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emptyState.style.display = 'none';
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markdownContent.style.display = '';
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articleTitle.textContent = initialContent.title;
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articleBody.innerHTML = initialContent.html;
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buildTOC();
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renderArticleMeta(initialContent.meta);
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currentFile = defaultFile;
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if (defaultFile && history.replaceState) {
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history.replaceState(null, '', '#' + encodeURIComponent(defaultFile));
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}
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}
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// === Hash-based navigation ===
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function handleHashChange() {
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const hash = decodeURIComponent(window.location.hash.slice(1));
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if (!hash || hash === currentFile) {
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return;
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}
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const fileItem = findNavFileItem(hash);
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if (fileItem) {
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loadFile(hash);
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setActiveFile(fileItem);
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return;
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}
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if (hash.startsWith('toc-')) {
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scrollToHeading(hash);
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}
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}
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window.addEventListener('hashchange', handleHashChange);
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// === Event Listeners ===
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btnToggleTheme.addEventListener('click', toggleColorMode);
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btnToggleSidebar.addEventListener('click', toggleSidebar);
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mobileNavBtn.addEventListener('click', showMobileSidebar);
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if (themeSelect) {
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themeSelect.addEventListener('change', function () {
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applyTheme(this.value, getStoredColorMode(this.value));
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});
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}
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if (tocNav) {
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tocNav.addEventListener('click', function (e) {
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const link = e.target.closest('[data-target]');
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if (!link) return;
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e.preventDefault();
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scrollToHeading(link.getAttribute('data-target'));
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});
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}
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// === Keyboard Shortcuts ===
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document.addEventListener('keydown', function (e) {
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// Ctrl+K or Cmd+K: focus search
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if ((e.ctrlKey || e.metaKey) && e.key === 'k') {
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e.preventDefault();
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searchInput.focus();
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searchInput.select();
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}
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// Escape: clear search
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if (e.key === 'Escape' && document.activeElement === searchInput) {
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searchInput.value = '';
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searchInput.dispatchEvent(new Event('input'));
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searchInput.blur();
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}
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});
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// Close mobile sidebar on Escape
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document.addEventListener('keydown', function (e) {
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if (e.key === 'Escape' && sidebar.classList.contains('mobile-visible')) {
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hideMobileSidebar();
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}
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});
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})();
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