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<!doctype html>
<html lang="zh-CN">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>DeepRead 金句热力（文章内联 Mock）</title>
<style>
:root{
--bg: #0b1020;
--panel: rgba(255,255,255,0.06);
--panel2: rgba(255,255,255,0.08);
--text: rgba(255,255,255,0.92);
--muted: rgba(255,255,255,0.65);
--grid: rgba(255,255,255,0.10);
--accent: #7c5cff;
--good: #2dd4bf;
--warn: #f59e0b;
--shadow: 0 12px 40px rgba(0,0,0,0.40);
--radius: 14px;
--font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
--hl-bg: rgba(124, 92, 255, 0.18);
--hl-bg-weak: rgba(124, 92, 255, 0.10);
--hl-border: rgba(124, 92, 255, 0.65);
--hl-border-weak: rgba(124, 92, 255, 0.30);
--bar-bg: rgba(255,255,255,0.08);
--minimap-x: 0px;
}
*{ box-sizing: border-box; }
body{
margin: 0;
font-family: var(--font);
color: var(--text);
background:
radial-gradient(1200px 900px at 20% 10%, rgba(124, 92, 255, 0.22), transparent 55%),
radial-gradient(900px 700px at 90% 30%, rgba(45, 212, 191, 0.18), transparent 55%),
radial-gradient(700px 700px at 50% 100%, rgba(239, 68, 68, 0.10), transparent 60%),
var(--bg);
min-height: 100vh;
}
.wrap{
max-width: 1240px;
margin: 0 auto;
padding: 18px;
}
.header{
display: flex;
align-items: flex-end;
justify-content: space-between;
gap: 16px;
margin-bottom: 14px;
}
.title{
display: flex;
flex-direction: column;
gap: 6px;
}
h1{
font-size: 18px;
line-height: 1.2;
margin: 0;
letter-spacing: 0.2px;
}
.subtitle{
font-size: 12px;
color: var(--muted);
margin: 0;
line-height: 1.45;
max-width: 860px;
}
.toolbar{
display: flex;
align-items: center;
gap: 10px;
flex-wrap: wrap;
}
.minimap-actions{
display: flex;
align-items: center;
justify-content: center;
gap: 8px;
margin-bottom: 10px;
}
.minimap-actions button{
width: 34px;
height: 34px;
padding: 0;
border-radius: 12px;
font-size: 16px;
line-height: 1;
display: inline-flex;
align-items: center;
justify-content: center;
}
.minimap-actions button:disabled{
opacity: 0.45;
cursor: not-allowed;
}
button{
border: 1px solid rgba(255,255,255,0.18);
background: rgba(255,255,255,0.07);
color: var(--text);
padding: 8px 10px;
border-radius: 10px;
cursor: pointer;
font-size: 12px;
transition: transform .05s ease, background .12s ease, border-color .12s ease;
user-select: none;
}
button:hover{ background: rgba(255,255,255,0.10); border-color: rgba(255,255,255,0.24); }
button:active{ transform: translateY(1px); }
.layout{
display: grid;
grid-template-columns: 100px 1fr 360px;
gap: 12px;
align-items: start;
}
.card{
background: var(--panel);
border: 1px solid rgba(255,255,255,0.12);
border-radius: var(--radius);
box-shadow: var(--shadow);
overflow: hidden;
}
.card-head{
padding: 12px 14px;
border-bottom: 1px solid rgba(255,255,255,0.10);
background: rgba(255,255,255,0.03);
display: flex;
align-items: center;
justify-content: space-between;
gap: 12px;
}
.card-head .label{
font-size: 12px;
color: var(--muted);
}
/* Left mini-map */
.minimap{
position: sticky;
top: 12px;
height: calc(100vh - 24px);
padding: 10px;
display: grid;
grid-template-rows: auto auto auto 1fr;
gap: 10px;
transform: translateX(var(--minimap-x));
z-index: 30;
}
.minimap-resize{
height: 10px;
border-radius: 999px;
border: 1px solid rgba(255,255,255,0.14);
background: rgba(255,255,255,0.04);
cursor: grab;
position: relative;
overflow: hidden;
}
.minimap-resize:active{
cursor: grabbing;
}
.minimap-resize::after{
content: "";
position: absolute;
inset: 0;
background: linear-gradient(90deg, rgba(124,92,255,0.20), rgba(45,212,191,0.18));
opacity: 0;
transition: opacity .12s ease;
}
.minimap-resize:hover::after{
opacity: 1;
}
.minimap .cap{
font-size: 12px;
color: var(--muted);
display: flex;
justify-content: space-between;
align-items: center;
gap: 10px;
}
.minimap-bar{
position: relative;
border-radius: 12px;
border: 1px solid rgba(255,255,255,0.12);
background: rgba(0,0,0,0.18);
overflow: hidden;
min-height: 0;
height: 100%;
}
.minimap-rail{
position: absolute;
inset: 0;
background:
linear-gradient(180deg,
rgba(16, 185, 129, 0.10),
rgba(250, 204, 21, 0.10),
rgba(239, 68, 68, 0.10)
),
linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02));
}
.minimap-dot{
position: absolute;
left: 8px;
right: 8px;
height: 10px;
border-radius: 999px;
border: 1px solid rgba(255,255,255,0.14);
background: rgba(124, 92, 255, 0.18);
cursor: pointer;
transition: transform .08s ease, background .12s ease, border-color .12s ease, box-shadow .12s ease;
}
.minimap-dot:hover{ transform: scaleX(1.05); }
.minimap-dot.is-selected{
border-color: rgba(124, 92, 255, 0.75);
background: rgba(124, 92, 255, 0.42);
box-shadow: 0 0 0 6px rgba(124,92,255,0.10);
}
.minimap-dot.is-related{
border-color: rgba(45, 212, 191, 0.55);
background: rgba(45, 212, 191, 0.28);
}
.minimap-dot.is-related.strong{
background: rgba(45, 212, 191, 0.40);
border-color: rgba(45, 212, 191, 0.75);
}
.minimap-view{
position: absolute;
left: 4px;
right: 4px;
border-radius: 10px;
border: 1px solid rgba(255,255,255,0.18);
background: rgba(255,255,255,0.05);
box-shadow: inset 0 0 0 1px rgba(0,0,0,0.18);
pointer-events: none;
}
.minimap-note{
font-size: 11px;
color: var(--muted);
line-height: 1.35;
}
/* Article */
.article{
padding: 16px 18px;
}
.article h2{
margin: 0 0 4px 0;
font-size: 22px;
letter-spacing: .2px;
}
.article .meta{
color: var(--muted);
font-size: 12px;
margin-bottom: 18px;
}
.article h3{
margin: 18px 0 10px 0;
font-size: 16px;
color: rgba(255,255,255,0.92);
}
.article p{
margin: 0 0 12px 0;
line-height: 1.85;
font-size: 14px;
color: rgba(255,255,255,0.90);
}
/* Highlighted quote (golden sentence) */
.gq{
padding: 2px 4px;
border-radius: 8px;
background: var(--hl-bg-weak);
border: 1px solid transparent;
cursor: pointer;
transition: background .12s ease, border-color .12s ease, box-shadow .12s ease;
}
.gq:hover{
background: var(--hl-bg);
border-color: rgba(255,255,255,0.10);
}
.gq.is-selected{
background: rgba(124, 92, 255, 0.28);
border-color: var(--hl-border);
box-shadow: 0 0 0 6px rgba(124, 92, 255, 0.10);
}
.gq.is-related{
background: rgba(45, 212, 191, 0.18);
border-color: rgba(45, 212, 191, 0.45);
}
.gq.is-related.strong{
background: rgba(45, 212, 191, 0.26);
border-color: rgba(45, 212, 191, 0.70);
}
/* Right panel */
.side{
position: sticky;
top: 12px;
height: calc(100vh - 24px);
display: grid;
grid-template-rows: auto 1fr;
z-index: 10;
}
.side-body{
padding: 14px;
overflow: auto;
}
.hint{
color: var(--muted);
font-size: 12px;
line-height: 1.5;
padding: 10px 12px;
border-radius: 12px;
border: 1px dashed rgba(255,255,255,0.16);
background: rgba(255,255,255,0.03);
}
.picked{
display: grid;
gap: 10px;
margin-bottom: 12px;
}
.badge{
display: inline-flex;
align-items: center;
gap: 8px;
padding: 8px 10px;
border-radius: 12px;
background: rgba(124, 92, 255, 0.10);
border: 1px solid rgba(124, 92, 255, 0.35);
color: rgba(255,255,255,0.92);
font-size: 12px;
width: fit-content;
}
.quote{
background: var(--panel2);
border: 1px solid rgba(255,255,255,0.12);
border-radius: 12px;
padding: 12px;
line-height: 1.55;
font-size: 13px;
}
.quote .meta{
color: var(--muted);
font-size: 12px;
margin-bottom: 6px;
display: flex;
align-items: center;
justify-content: space-between;
gap: 10px;
}
.quote .text{
color: rgba(255,255,255,0.92);
}
.related-list{
display: grid;
gap: 10px;
margin-top: 10px;
}
.rel-card{
padding: 12px;
border-radius: 12px;
border: 1px solid rgba(255,255,255,0.12);
background: rgba(255,255,255,0.04);
display: grid;
gap: 10px;
}
.rel-head{
display: flex;
justify-content: space-between;
align-items: center;
gap: 10px;
color: var(--muted);
font-size: 12px;
}
.rel-head .left{
display: inline-flex;
align-items: center;
gap: 10px;
}
.pill{
display: inline-flex;
align-items: center;
gap: 6px;
padding: 4px 8px;
border-radius: 999px;
border: 1px solid rgba(255,255,255,0.14);
background: rgba(255,255,255,0.04);
color: rgba(255,255,255,0.86);
font-size: 11px;
}
.heat{
height: 8px;
border-radius: 999px;
background: var(--bar-bg);
border: 1px solid rgba(255,255,255,0.10);
overflow: hidden;
}
.heat > .fill{
height: 100%;
width: 0;
border-radius: 999px;
background: linear-gradient(90deg, rgba(45,212,191,0.45), rgba(124,92,255,0.65));
transition: width .12s ease;
}
.rel-actions{
display: flex;
gap: 8px;
flex-wrap: wrap;
}
.linkbtn{
border: 1px solid rgba(255,255,255,0.16);
background: rgba(255,255,255,0.06);
color: rgba(255,255,255,0.88);
padding: 6px 8px;
border-radius: 10px;
cursor: pointer;
font-size: 12px;
}
.linkbtn:hover{ background: rgba(255,255,255,0.10); }
.muted{
color: var(--muted);
font-size: 12px;
line-height: 1.45;
}
@media (max-width: 1060px){
.layout{ grid-template-columns: 1fr; }
.minimap{ position: relative; height: auto; }
.side{ position: relative; height: auto; }
.minimap-bar{ min-height: 160px; }
}
</style>
</head>
<body>
<div class="wrap">
<div class="header">
<div class="title">
<h1>金句热力（文章内联 Mock）</h1>
<p class="subtitle">点击正文中的划线金句，会在右侧固定栏展示与它相关的其它金句（默认等强/可手动标注权重）。左侧卡尺标出金句在文章中的位置，可点击跳转。<br>
DEV说明：这里的“金句”只是示例标注（q1/q2/q3）。后续接入真实页面时，可以把 DOM 里被你划线/收藏的片段替换成同样结构的 <code><span class="gq" data-qid="..."></code>。<br>
</p>
</div>
</div>
<div class="layout">
<div class="card minimap" aria-label="金句卡尺">
<div class="minimap-resize" id="minimapPan" title="拖动左右移动卡尺"></div>
<div class="minimap-actions" aria-label="操作按钮">
<button id="btnApplySel" disabled title="选中划线">+</button>
<button id="btnClear" title="占位">*</button>
</div>
<div class="cap">
<span class="muted" id="mmCount">—</span>
</div>
<div class="minimap-bar" id="minimapBar">
<div class="minimap-rail"></div>
<div class="minimap-view" id="minimapView"></div>
</div>
</div>
<div class="card" aria-label="文章正文">
<div class="article" id="article">
<h2>羊舍一夕</h2>
<div class="meta">（又名：四个孩子和一个夜晚） · 汪曾祺</div>
<h3>一、夜晚</h3>
<p>火车过来了。</p>
<p>“216！往北京的上行车，”老九说。</p>
<p>
于是他们放下手里的工作，一起听火车。老九和小吕都好像看见：<span class="gq" data-qid="q1">先是一个雪亮的大灯，亮得叫人眼睛发胀。</span>大灯好像在拼命地往外冒光，而且冒着气，嗤嗤地响。乌黑的铁，锃黄的铜。然后是绿色的车身，排山倒海地冲过来。<span class="gq" data-qid="q3">车窗蜜黄色的灯光连续地映在果园东边的树墙子上，一方块，一方块，川流不息地追赶着</span>……每回看到灯光那样猛烈地从树墙子上刮过去，你总觉得会刮下满地枝叶来似的。可是火车一过，还是那样：树墙子显得格外的安详，格外的绿，真怪。
</p>
<p>
这些，老九和小吕都太熟悉了。夏天，他们睡得晚，老是到路口去看火车。可现在是冬天了。那么，现在是什么样子呢？小吕想象，<span class="gq" data-qid="q2">灯光一定会从树墙子的枝叶空隙处漏进来，落到果园的地面上来吧。</span>可能！他想象着那灯光映在大梨树地间作的葱畦里，照着一地的大葱蓬松的，干的，发白的叶子……车轮的声音逐渐模糊成为一片，像刮过一阵大风一样，过去
“十点四十七，”老九说。
老九在附近的山头上放了好几年羊了，他知道每一趟火车的时刻。
</p>
<p>留孩说：“贵甲哥怎么还不回来？”</p>
<p>老九说：“他又排戏去了，一定回来得晚。”</p>
<p>小吕说：“这是什么奶哥！奶弟来了也不陪着，昨天是找羊，今天又去排戏！”</p>
<p>留孩说：“没关系，以后我们就常在一起了。”</p>
<p>老九说：“咱们烧山药吃，一边说话，一边等他。小吕，不是还有一包高山顶①吗？坐上！外屋缸里还有没有水？”“有！”</p>
<p>于是三个人一起动手：小吕拿沙锅舀了多半锅水，抓起一把高山顶来撮在里面。这是老九放羊时摘来的。老九从麻袋里掏山药——他们在山坡上自己种的。留孩把炉子通了通，又加了点煤。</p>
<p>屋里一顺排了五张木床，联成一个大炕。一张是张士林的，他到狼山给场里买果树苗子去了。隔壁还有一间小屋，锅灶俱全，是老羊倌住的。老羊倌请了假，看他的孙子去了。今天这里只剩下四个孩子：他们三个，和那个正在排戏的。</p>
<p>屋里有一盏自造的煤油灯——老九用墨水瓶子改造的，一个炉子。外边还有一间空屋，是个农具仓库，放着硫铵、石灰、DDT、铁桶、木叉、喷雾器……外屋门插着。门外，右边是羊圈，里边卧着四百只羊；前边是果园，什么都没有了，只剩下一点葱，还有一堆没有窖好的蔓菁。现在什么也看不见，外边是无边的昏黑。方圆左近，就只有这个半山坡上有一点点亮光。夜，正在深浓起来。”</p>
<div style="margin-top:12px;line-height:1.8;">
<span>（非 p 结构示例）这一段用的是 </span><span>div + span + br</span><span> 来组织。</span><br/>
<span>你可以在这一段里随便拖选一段文字，然后点左侧卡尺上的“+”确认生成划线。</span><br/>
<span>如果你跨出这个 div 去选到上一段/下一段，按方案 A 应该会被拒绝（不会进入待确认状态）。</span>
</div>
</div>
</div>
<div class="card side" aria-label="关联侧栏">
<div class="card-head">
<div class="label">关联金句</div>
<div class="label" id="picked">未选择</div>
</div>
<div class="side-body" id="sideBody">
<div class="hint" id="hint">
点击正文里任意一条金句（有底色的划线区域）。我会：
<div class="muted" style="margin-top:6px;">
1) 在右侧列出与它相关的金句（默认等强）<br/>
2) 在正文内对相关句做轻高亮<br/>
3) 在左侧卡尺上点亮相关位置
</div>
</div>
<div class="picked" id="pickedBox" style="display:none;"></div>
<div class="related-list" id="relList" style="display:none;"></div>
</div>
</div>
</div>
</div>
<script>
// 手动标注的数据结构（Mock）
// 说明：
// - qid 对应正文里 data-qid 的金句节点
// - text 用于侧栏展示（实际接入时也可直接从 DOM 取）
// - links: 这个 qid 和其它 qid 的关系强度(0..1)，第一版可默认等强
const QUOTES = {
q1: { text: "先是一个雪亮的大灯，亮得叫人眼睛发胀。", links: { q2: 0, q3: 0 } },
q2: { text: "灯光一定会从树墙子的枝叶空隙处漏进来，落到果园的地面上来吧。", links: { q1: 0, q3: 0 } },
q3: { text: "车窗蜜黄色的灯光连续地映在果园东边的树墙子上，一方块，一方块，川流不息地追赶着", links: { q1: 0, q2: 0 } },
};
const $ = (sel) => document.querySelector(sel);
const $$ = (sel) => Array.from(document.querySelectorAll(sel));
const elArticle = $("#article");
const elPicked = $("#picked");
const elPickedBox = $("#pickedBox");
const elRelList = $("#relList");
const elHint = $("#hint");
const elMinimapBar = $("#minimapBar");
const elMinimapView = $("#minimapView");
const elMmCount = $("#mmCount");
const elMinimapPan = $("#minimapPan");
let selectedQid = null;
let userQuoteSeq = 1;
let pendingSelection = null;
const elBtnApplySel = $("#btnApplySel");
const STORAGE_KEY_QUOTES = "deepread_quotes";
const STORAGE_KEY_USER_HIGHLIGHTS = "deepread_user_highlights";
function escapeHtml(s){
return String(s)
.replaceAll("&", "&")
.replaceAll("<", "<")
.replaceAll(">", ">")
.replaceAll('"', """)
.replaceAll("'", "'");
}
function clamp01(x){
const n = Number(x);
if (Number.isNaN(n)) return 0;
return Math.max(0, Math.min(1, n));
}
function randomWeight(){
return Math.round(Math.random() * 100) / 100;
}
function ensureSymLink(a, b, w){
if (!a || !b) return;
if (!QUOTES[a] || !QUOTES[b]) return;
if (!QUOTES[a].links) QUOTES[a].links = {};
if (!QUOTES[b].links) QUOTES[b].links = {};
const ww = clamp01(w);
QUOTES[a].links[b] = ww;
QUOTES[b].links[a] = ww;
}
function randomizeExistingLinks(){
const ids = Object.keys(QUOTES);
for (let i = 0; i < ids.length; i++){
for (let j = i + 1; j < ids.length; j++){
ensureSymLink(ids[i], ids[j], randomWeight());
}
}
}
function weightToHeatColor(w){
// 0..1: green -> yellow -> red
const ww = clamp01(w);
const hue = 120 - ww * 120; // 120(green) -> 0(red)
const sat = 85;
const light = 52;
return `hsl(${hue} ${sat}% ${light}%)`;
}
function getMinimapX(){
const raw = getComputedStyle(document.documentElement).getPropertyValue("--minimap-x");
const v = parseInt(String(raw || "").trim(), 10);
return Number.isFinite(v) ? v : 0;
}
function setMinimapX(px){
const x = Math.round(Number(px) || 0);
document.documentElement.style.setProperty("--minimap-x", `${x}px`);
try{
localStorage.setItem("deepread_minimap_x", String(x));
}catch{}
}
function restoreMinimapX(){
try{
const v = parseInt(localStorage.getItem("deepread_minimap_x") || "", 10);
if (Number.isFinite(v)){
setMinimapX(v);
}
}catch{}
}
function bindMinimapPan(){
if (!elMinimapPan) return;
let dragging = false;
let startX = 0;
let startOffset = 0;
let minOffset = null;
let maxOffset = null;
elMinimapPan.addEventListener("pointerdown", (e) => {
if (window.matchMedia("(max-width: 1060px)").matches) return;
const elWrap = document.querySelector(".wrap");
const elMinimapCard = document.querySelector(".card.minimap");
if (!elWrap || !elMinimapCard) return;
const wrapRect = elWrap.getBoundingClientRect();
const mmRect = elMinimapCard.getBoundingClientRect();
dragging = true;
startX = e.clientX;
startOffset = getMinimapX();
// 计算本次拖动允许的偏移范围：
// - 左边界：minimap 左边不小于 wrap 左边
// - 右边界：minimap 右边不大于 wrap 右边
// 用“当前偏移 + 可移动距离”来得到绝对偏移范围
const canMoveLeft = mmRect.left - wrapRect.left;
const canMoveRight = wrapRect.right - mmRect.right;
minOffset = startOffset - canMoveLeft;
maxOffset = startOffset + canMoveRight;
elMinimapPan.setPointerCapture(e.pointerId);
e.preventDefault();
});
elMinimapPan.addEventListener("pointermove", (e) => {
if (!dragging) return;
const dx = e.clientX - startX;
let next = startOffset + dx;
if (typeof minOffset === "number") next = Math.max(minOffset, next);
if (typeof maxOffset === "number") next = Math.min(maxOffset, next);
setMinimapX(next);
});
function endDrag(){
dragging = false;
minOffset = null;
maxOffset = null;
}
elMinimapPan.addEventListener("pointerup", endDrag);
elMinimapPan.addEventListener("pointercancel", endDrag);
}
function getQuoteEl(qid){
return elArticle.querySelector(`.gq[data-qid="${qid}"]`);
}
function allQuoteEls(){
return $$(".gq[data-qid]");
}
function setPendingSelection(next){
pendingSelection = next;
if (!elBtnApplySel) return;
elBtnApplySel.disabled = !pendingSelection;
}
function closestBlockContainer(node){
if (!node) return null;
let el = (node.nodeType === Node.ELEMENT_NODE) ? node : node.parentElement;
if (!el) return null;
// 优先匹配常见块级承载容器
const quick = el.closest("p,li,blockquote,pre,h1,h2,h3,h4,h5,h6,td,th,div");
if (quick && elArticle && elArticle.contains(quick) && quick !== elArticle) return quick;
// 兜底：向上找第一个非 inline 的元素作为容器
while (el && elArticle && el !== elArticle){
const cs = getComputedStyle(el);
const display = cs ? cs.display : "";
if (display && display !== "inline" && display !== "contents") return el;
el = el.parentElement;
}
return null;
}
function isRangeInArticle(range){
if (!range) return false;
const sc = range.startContainer;
const ec = range.endContainer;
return elArticle.contains(sc) && elArticle.contains(ec);
}
function getTextNodesIn(el){
const out = [];
const tw = document.createTreeWalker(el, NodeFilter.SHOW_TEXT, {
acceptNode: (n) => {
if (!n.nodeValue) return NodeFilter.FILTER_REJECT;
return NodeFilter.FILTER_ACCEPT;
}
});
let n;
while ((n = tw.nextNode())) out.push(n);
return out;
}
function calcOffsetWithin(el, container, offset){
const nodes = getTextNodesIn(el);
let acc = 0;
for (const n of nodes){
if (n === container) return acc + offset;
acc += n.nodeValue.length;
}
// 如果 container 不是文本节点（极少数情况），尝试定位到其前一个文本节点
if (container && container.nodeType === Node.ELEMENT_NODE){
const walker = document.createTreeWalker(el, NodeFilter.SHOW_TEXT);
let last = null;
let cur;
while ((cur = walker.nextNode())){
if (container.contains(cur)){
// offset 指向 element child index；这里退化为 element 起始
return acc;
}
last = cur;
acc += cur.nodeValue.length;
}
if (last) return acc;
}
return acc;
}
function getSpanOffsets(spanEl){
if (!spanEl) return null;
const containerEl = closestBlockContainer(spanEl);
if (!containerEl) return null;
try{
const rStart = document.createRange();
rStart.selectNodeContents(containerEl);
rStart.setEndBefore(spanEl);
const start = rStart.toString().length;
const rEnd = document.createRange();
rEnd.selectNodeContents(containerEl);
rEnd.setEndAfter(spanEl);
const end = rEnd.toString().length;
return { start, end };
}catch{
return null;
}
}
function nodeAtOffset(el, targetOffset){
const nodes = getTextNodesIn(el);
let acc = 0;
for (const n of nodes){
const len = n.nodeValue.length;
if (targetOffset <= acc + len){
return { node: n, offset: Math.max(0, targetOffset - acc) };
}
acc += len;
}
// 落在末尾
if (nodes.length === 0) return null;
const last = nodes[nodes.length - 1];
return { node: last, offset: last.nodeValue.length };
}
function unwrapSpan(el){
const text = document.createTextNode(el.textContent || "");
el.replaceWith(text);
}
function normalizeRangeOffsets(a, b){
const s = Math.min(a, b);
const e = Math.max(a, b);
return { start: s, end: e };
}
function generateUserQid(){
const seq = userQuoteSeq++;
return `uq${seq}`;
}
function saveToLocalStorage(){
try{
// 保存 QUOTES 数据结构
localStorage.setItem(STORAGE_KEY_QUOTES, JSON.stringify(QUOTES));
// 保存用户新增划线的位置信息（用于恢复 DOM）
const userHighlights = [];
for (const qid of Object.keys(QUOTES)){
if (!qid.startsWith("uq")) continue; // 只保存用户新增的
const el = getQuoteEl(qid);
if (!el) continue;
const container = closestBlockContainer(el);
if (!container) continue;
const containerPath = getElementPath(container);
const offsets = getSpanOffsets(el);
if (!offsets || !containerPath) continue;
userHighlights.push({
qid,
containerPath,
start: offsets.start,
end: offsets.end,
text: QUOTES[qid].text
});
}
localStorage.setItem(STORAGE_KEY_USER_HIGHLIGHTS, JSON.stringify(userHighlights));
}catch(err){
console.warn("保存到 localStorage 失败:", err);
}
}
function getElementPath(el){
// 生成一个简单的选择器路径（基于 id/class/tag + nth-child）
const path = [];
let current = el;
while (current && current !== elArticle && current !== document.body){
let selector = current.tagName.toLowerCase();
if (current.id) selector += `#${current.id}`;
else if (current.className) selector += `.${Array.from(current.classList).join(".")}`;
// 添加 nth-child 以提高精确度
const parent = current.parentElement;
if (parent){
const siblings = Array.from(parent.children);
const index = siblings.indexOf(current) + 1;
selector += `:nth-child(${index})`;
}
path.unshift(selector);
current = current.parentElement;
}
return path.join(" > ");
}
function restoreFromLocalStorage(){
try{
// 1) 恢复 QUOTES 数据
const savedQuotes = localStorage.getItem(STORAGE_KEY_QUOTES);
if (savedQuotes){
const parsed = JSON.parse(savedQuotes);
// 合并到现有 QUOTES（保留预设的 q1/q2/q3）
for (const [qid, data] of Object.entries(parsed)){
if (qid.startsWith("uq")){
QUOTES[qid] = data;
// 更新 userQuoteSeq 避免 ID 冲突
const num = parseInt(qid.substring(2), 10);
if (!isNaN(num) && num >= userQuoteSeq){
userQuoteSeq = num + 1;
}
}
}
}
// 2) 恢复用户划线的 DOM 包裹
const savedHighlights = localStorage.getItem(STORAGE_KEY_USER_HIGHLIGHTS);
if (savedHighlights){
const highlights = JSON.parse(savedHighlights);
for (const h of highlights){
try{
const container = document.querySelector(h.containerPath);
if (!container || !elArticle.contains(container)) continue;
// 检查是否已经存在（避免重复包裹）
if (getQuoteEl(h.qid)) continue;
// 重新包裹
const startLoc = nodeAtOffset(container, h.start);
const endLoc = nodeAtOffset(container, h.end);
if (!startLoc || !endLoc) continue;
const range = document.createRange();
range.setStart(startLoc.node, startLoc.offset);
range.setEnd(endLoc.node, endLoc.offset);
const span = document.createElement("span");
span.className = "gq";
span.setAttribute("data-qid", h.qid);
const frag = range.extractContents();
span.appendChild(frag);
range.insertNode(span);
}catch(err){
console.warn(`恢复划线 ${h.qid} 失败:`, err);
}
}
}
}catch(err){
console.warn("从 localStorage 恢复失败:", err);
}
}
function addRandomLinksForNewQid(newQid){
if (!newQid || !QUOTES[newQid]) return;
for (const otherQid of Object.keys(QUOTES)){
if (otherQid === newQid) continue;
ensureSymLink(newQid, otherQid, randomWeight());
}
}
function addOrReplaceHighlightInContainer(containerEl, start, end){