feat(demo): 添加书签功能支持保存和跳转页面
添加书签侧边栏组件，支持以下功能： 1. 自动生成书签名称并保存当前可见页码 2. 书签列表展示、编辑和删除功能 3. 点击书签跳转到指定页面 4. 使用localStorage持久化存储书签数据
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demo.html
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demo.html
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@ -9,6 +9,19 @@
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.panel { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 12px; }
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.panel input[type="text"] { width: 420px; padding: 6px 8px; font-size: 12px; }
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.panel button { padding: 6px 12px; font-size: 12px; cursor: pointer; }
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.layout { display: flex; gap: 12px; align-items: flex-start; }
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.sidebar { width: 280px; border: 1px solid #e2e6ed; border-radius: 8px; padding: 12px; background: #fafafa; }
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.sidebar h4 { margin: 0 0 8px; font-weight: 600; font-size: 14px; }
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.bookmark-form { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
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.bookmark-form input { flex: 1; min-width: 0; padding: 6px 8px; font-size: 12px; }
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.bookmark-form input[type="number"] { width: 80px; }
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.bookmark-form button { padding: 6px 12px; font-size: 12px; cursor: pointer; }
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.bookmark-list { list-style: none; padding: 0; margin: 0; }
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.bookmark-item { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 8px; border-bottom: 1px solid #eee; }
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.bookmark-item span { font-size: 12px; color: #111827; }
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.bookmark-actions { display: flex; gap: 6px; }
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.bookmark-actions button { padding: 4px 8px; font-size: 12px; cursor: pointer; }
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.editorWrap { flex: 1; }
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iframe { width: 100%; height: 80vh; border: 1px solid #e2e6ed; }
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small { color: #6b7280; }
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</style>
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@ -24,13 +37,27 @@
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<button id="loadBtn">设置 iframe 地址</button>
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<small>示例：vocd.html?filePath=URL&mode=edit 或 vocd.html?filePath=URL</small>
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</div>
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<iframe id="editorFrame" src="./vocd.html" referrerpolicy="no-referrer"></iframe>
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<div class="layout">
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<aside class="sidebar">
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<h4>书签</h4>
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<div class="bookmark-form">
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<button id="addBookmarkBtn">添加书签</button>
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<small>自动命名为书签N+1，页码取当前可见页</small>
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</div>
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<ul id="bookmarkList" class="bookmark-list"></ul>
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</aside>
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<div class="editorWrap">
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<iframe id="editorFrame" src="./vocd.html" referrerpolicy="no-referrer"></iframe>
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</div>
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</div>
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<script>
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const editorFrame = document.getElementById('editorFrame')
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const loadBtn = document.getElementById('loadBtn')
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const urlInput = document.getElementById('urlInput')
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const editModeToggle = document.getElementById('editModeToggle')
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const addBookmarkBtn = document.getElementById('addBookmarkBtn')
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const bookmarkList = document.getElementById('bookmarkList')
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function buildSrc(filePath, isEdit) {
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const base = './vocd.html'
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@ -47,6 +74,7 @@
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const src = buildSrc(defaultUrl, editModeToggle.checked)
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editorFrame.src = src
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console.log('[demo] 自动设置 iframe src:', src)
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renderBookmarks()
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})
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// 切换编辑模式时，刷新 iframe 地址，保留当前 filePath
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@ -58,6 +86,7 @@
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const src = buildSrc(currentFilePath, editModeToggle.checked)
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editorFrame.src = src
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console.log('[demo] 编辑模式切换，刷新 iframe src:', src)
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renderBookmarks()
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})
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loadBtn.onclick = () => {
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@ -67,7 +96,145 @@
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const src = buildSrc(targetUrl, editModeToggle.checked)
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editorFrame.src = src
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console.log('[demo] 设置 iframe src:', src)
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renderBookmarks()
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}
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function getCurrentFilePath() {
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const currentAbs = editorFrame.src || './vocd.html'
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const currentUrl = new URL(currentAbs, window.location.href)
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return currentUrl.searchParams.get('filePath') || '/test.ocd'
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}
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function getBookmarkKey() {
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const fp = getCurrentFilePath()
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return `bookmarks:${fp}`
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}
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function readBookmarks() {
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try {
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const raw = localStorage.getItem(getBookmarkKey())
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return raw ? JSON.parse(raw) : []
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} catch {
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return []
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}
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}
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function writeBookmarks(list) {
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localStorage.setItem(getBookmarkKey(), JSON.stringify(list))
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}
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function getNextBookmarkName() {
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const list = readBookmarks()
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let maxN = 0
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list.forEach(b => {
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const m = /^书签(\d+)$/.exec(String(b.name || ''))
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if (m) {
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const n = parseInt(m[1], 10)
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if (Number.isFinite(n)) maxN = Math.max(maxN, n)
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}
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})
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return `书签${maxN + 1}`
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}
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function renderBookmarks() {
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const list = readBookmarks()
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bookmarkList.innerHTML = ''
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list.forEach(item => {
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const li = document.createElement('li')
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li.className = 'bookmark-item'
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const label = document.createElement('span')
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label.textContent = `${item.name}（第${item.page}页）`
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const actions = document.createElement('div')
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actions.className = 'bookmark-actions'
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const jumpBtn = document.createElement('button')
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jumpBtn.textContent = '跳转'
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jumpBtn.onclick = () => navigateToPage(item.page)
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const editBtn = document.createElement('button')
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editBtn.textContent = '编辑'
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editBtn.onclick = () => {
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const newName = window.prompt('书签名称', item.name) || item.name
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const newPageStr = window.prompt('页码（正整数）', String(item.page)) || String(item.page)
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const newPage = Math.max(1, parseInt(newPageStr, 10) || item.page)
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const list2 = readBookmarks().map(b => (b.id === item.id ? { ...b, name: newName, page: newPage } : b))
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writeBookmarks(list2)
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renderBookmarks()
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}
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const delBtn = document.createElement('button')
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delBtn.textContent = '删除'
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delBtn.onclick = () => {
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const list2 = readBookmarks().filter(b => b.id !== item.id)
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writeBookmarks(list2)
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renderBookmarks()
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}
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actions.appendChild(jumpBtn)
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actions.appendChild(editBtn)
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actions.appendChild(delBtn)
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li.appendChild(label)
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li.appendChild(actions)
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bookmarkList.appendChild(li)
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})
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}
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function addBookmark(name, page) {
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const list = readBookmarks()
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const id = Date.now().toString(36) + Math.random().toString(36).slice(2)
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const item = { id, name, page }
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writeBookmarks([...list, item])
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renderBookmarks()
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}
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addBookmarkBtn.onclick = () => {
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const name = getNextBookmarkName()
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const page = getFirstVisiblePageNo()
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addBookmark(name, page)
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}
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function getFirstVisiblePageNo() {
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const doc = editorFrame.contentDocument || editorFrame.contentWindow?.document
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if (!doc) return 1
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const iframeRect = editorFrame.getBoundingClientRect()
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const canvases = Array.from(doc.querySelectorAll('canvas[data-index]'))
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if (!canvases.length) return 1
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const visible = canvases
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.map(c => {
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const rect = c.getBoundingClientRect()
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const overlapY = Math.min(rect.bottom, iframeRect.bottom) - Math.max(rect.top, iframeRect.top)
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return { c, rect, overlapY }
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})
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.filter(x => x.overlapY > 0)
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.sort((a, b) => a.rect.top - b.rect.top)
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let chosen = visible.length ? visible[0].c : null
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if (!chosen) {
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chosen = canvases.sort((a, b) => a.getBoundingClientRect().top - b.getBoundingClientRect().top)[0]
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}
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const idxStr = chosen?.getAttribute('data-index') || '0'
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const idx = parseInt(idxStr, 10)
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return Number.isFinite(idx) ? idx + 1 : 1
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}
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function navigateToPage(page) {
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const doc = editorFrame.contentDocument || editorFrame.contentWindow?.document
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if (!doc) return
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const target0 = doc.querySelector(`canvas[data-index="${page - 1}"]`)
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const target1 = doc.querySelector(`canvas[data-index="${page}"]`)
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const canvas = target0 || target1
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if (!canvas) {
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alert(`未找到第${page}页`)
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return
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}
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try {
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canvas.scrollIntoView({ behavior: 'smooth', block: 'center' })
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const evt = new MouseEvent('mousedown', { bubbles: true })
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canvas.dispatchEvent(evt)
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} catch (e) {
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console.warn('跳转页失败', e)
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}
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}
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editorFrame.addEventListener('load', () => {
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renderBookmarks()
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})
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</script>
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</body>
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</html>
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