直聊的种子历史改成逐条真多轮，不再靠块头文本猜轮次。
一条一个角色下拉加一整句正文，换行原样保留；旧盘里的纯文本在读盘时迁移，切得出轮次的转成条目，切不出的挪进史前设定免得悄悄丢掉。历史编辑器做成共用控件，预设工作台的用例与假历史也用同一套。
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/**
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* 历史条目编辑器（假历史 / 用例历史 / 直聊种子历史共用）。
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*
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* 每条 = 角色下拉 + 一整句正文。正文里的换行就是真换行，
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* 不靠 `user: / assistant:` 行首和 `\n` 转义来猜边界，一句永远是一条消息。
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*
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* items 是 { role, content }[]：组件直接改数组元素，
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* 结构变化（加 / 删 / 移 / 换角色）后自己重画，正文输入不重画（不打断光标）。
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*/
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export const HISTORY_ROLES = ["user", "assistant"];
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/** 只留 user / assistant 且有正文的条目；脏数据丢掉，不抛。 */
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export function normalizeHistoryTurns(value) {
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if (!Array.isArray(value)) return [];
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const out = [];
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for (const item of value) {
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if (!item || typeof item !== "object") continue;
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const role = item.role === "assistant" ? "assistant" : item.role === "user" ? "user" : "";
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if (!role) continue;
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const content = typeof item.content === "string" ? item.content : "";
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if (!content.trim()) continue;
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out.push({ role, content });
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}
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return out;
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}
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function roleLabel(role) {
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return role === "assistant" ? "assistant" : "user";
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}
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export function createHistoryEditor({
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items,
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onChange,
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disabled = false,
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addLabel = "＋ 加一句",
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emptyHint = "空则不占历史；点「＋ 加一句」开始写。",
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countHint = (count) => `共 ${count} 句 · 一条一句，正文换行原样保留`,
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}) {
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const host = document.createElement("div");
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host.className = "he";
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host.dataset.disabled = disabled ? "1" : "0";
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let focusIndex = -1;
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let isDisabled = disabled;
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/** 拖动排序：从哪一行起拖，以及当前插入点（0..items.length） */
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let dragIndex = -1;
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let dropAt = -1;
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let dragRow = null;
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const commit = () => {
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if (onChange) onChange();
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};
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const rowsFor = (text) => {
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const lines = String(text || "").split("\n").length;
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return Math.min(12, Math.max(2, lines));
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};
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const redraw = () => {
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host.replaceChildren();
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items.forEach((item, index) => host.append(row(item, index)));
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host.append(actions()); if (focusIndex >= 0) {
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const area = host.querySelector(`[data-history-index="${focusIndex}"]`);
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if (area) {
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area.focus();
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area.setSelectionRange(area.value.length, area.value.length);
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}
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focusIndex = -1;
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}
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host.dataset.disabled = isDisabled ? "1" : "0";
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};
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const move = (index, delta) => {
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const target = index + delta;
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if (target < 0 || target >= items.length) return;
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const tmp = items[index];
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items[index] = items[target];
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items[target] = tmp;
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focusIndex = target;
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commit();
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redraw();
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};
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const remove = (index) => {
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items.splice(index, 1);
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commit();
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redraw();
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};
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const addTurn = () => {
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const last = items[items.length - 1];
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items.push({
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role: last && roleLabel(last.role) === "user" ? "assistant" : "user",
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content: "",
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});
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focusIndex = items.length - 1;
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commit();
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redraw();
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};
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const row = (item, index) => {
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const grip = document.createElement("button");
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grip.type = "button";
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grip.className = "he-grip";
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grip.textContent = "⠿";
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grip.title = "拖动调节上下";
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grip.setAttribute("aria-label", `拖动第 ${index + 1} 句调整顺序`);
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grip.disabled = isDisabled;
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const role = document.createElement("select");
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role.className = "he-role";
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role.setAttribute("aria-label", `第 ${index + 1} 句的角色`);
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role.disabled = isDisabled;
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for (const value of HISTORY_ROLES) {
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const option = document.createElement("option");
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option.value = value;
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option.textContent = value;
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role.append(option);
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}
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role.value = roleLabel(item.role);
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const area = document.createElement("textarea");
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area.className = "he-text";
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area.rows = rowsFor(item.content);
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area.spellcheck = false;
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area.placeholder = role.value === "user" ? "用户这一句…" : "角色这一句…";
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area.disabled = isDisabled;
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area.dataset.historyIndex = String(index);
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area.setAttribute("aria-label", `第 ${index + 1} 句正文`);
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area.value = item.content || "";
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role.addEventListener("change", () => {
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item.role = role.value === "assistant" ? "assistant" : "user";
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area.placeholder = item.role === "user" ? "用户这一句…" : "角色这一句…";
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host.querySelectorAll(".he-row")[index]?.setAttribute("data-role", item.role);
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commit();
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});
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area.addEventListener("input", () => {
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item.content = area.value;
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area.rows = rowsFor(item.content);
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commit();
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});
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const tools = document.createElement("div");
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tools.className = "he-tools";
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tools.append(
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toolButton("↑", "上移", index === 0, () => move(index, -1)),
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toolButton("↓", "下移", index === items.length - 1, () => move(index, 1)),
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toolButton("✕", "删除这一句", false, () => remove(index), "he-btn-danger"),
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);
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const node = document.createElement("div");
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node.className = "he-row";
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node.dataset.role = roleLabel(item.role);
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node.dataset.index = String(index);
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// 拖动手柄按下时才允许拖整行：否则在 textarea 里选字会被当成拖动。
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grip.addEventListener("pointerdown", () => {
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if (!isDisabled) node.draggable = true;
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});
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grip.addEventListener("pointerup", () => {
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window.setTimeout(() => {
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if (dragIndex < 0) node.draggable = false;
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}, 0);
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});
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grip.addEventListener("pointercancel", () => {
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node.draggable = false;
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});
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node.addEventListener("dragstart", (event) => {
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dragIndex = index;
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dragRow = node;
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node.classList.add("he-row-dragging");
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host.dataset.dragging = "1";
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if (event.dataTransfer) {
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event.dataTransfer.effectAllowed = "move";
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try {
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event.dataTransfer.setData("text/plain", String(index));
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} catch {
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/* 某些环境不让写 data */
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}
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}
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});
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node.addEventListener("dragend", () => {
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endDrag();
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redraw();
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});
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node.append(grip, role, area, tools);
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return node;
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};
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const toolButton = (text, title, isOff, onclick, extraClass) => {
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const button = document.createElement("button");
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button.type = "button";
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button.className = `he-btn${extraClass ? ` ${extraClass}` : ""}`;
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button.textContent = text;
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button.title = title;
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button.disabled = isOff || isDisabled;
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button.addEventListener("click", onclick);
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return button;
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};
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const actions = () => {
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const wrap = document.createElement("div");
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wrap.className = "he-actions";
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const add = document.createElement("button");
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add.type = "button";
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add.className = "he-btn he-btn-add";
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add.textContent = addLabel;
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add.disabled = isDisabled;
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add.addEventListener("click", addTurn);
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const hint = document.createElement("span");
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hint.className = "he-hint";
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hint.textContent = items.length ? countHint(items.length) : emptyHint;
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wrap.append(add, hint);
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return wrap;
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};
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/* 拖动排序：拖到某一行的一半高度以上就插到它前面，否则插到最后。 */
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const clearDropMarks = () => {
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for (const node of host.querySelectorAll(".he-row")) delete node.dataset.drop;
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};
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const endDrag = () => {
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dragIndex = -1;
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dropAt = -1;
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if (dragRow) {
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dragRow.draggable = false;
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dragRow.classList.remove("he-row-dragging");
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}
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dragRow = null;
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delete host.dataset.dragging;
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clearDropMarks();
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};
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host.addEventListener("dragover", (event) => {
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if (dragIndex < 0 || isDisabled) return;
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event.preventDefault();
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if (event.dataTransfer) event.dataTransfer.dropEffect = "move";
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const rows = [...host.querySelectorAll(".he-row")];
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if (rows.length === 0) return;
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let at = rows.length;
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for (let i = 0; i < rows.length; i += 1) {
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const rect = rows[i].getBoundingClientRect();
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if (event.clientY < rect.top + rect.height / 2) {
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at = i;
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break;
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}
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}
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dropAt = at;
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clearDropMarks();
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if (at >= rows.length) rows[rows.length - 1].dataset.drop = "after";
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else rows[at].dataset.drop = "before";
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});
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host.addEventListener("drop", (event) => {
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if (dragIndex < 0 || dropAt < 0) return;
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event.preventDefault();
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const from = dragIndex;
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const to = dropAt > from ? dropAt - 1 : dropAt;
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if (to !== from) {
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const [moved] = items.splice(from, 1);
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items.splice(to, 0, moved);
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focusIndex = -1;
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commit();
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}
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endDrag();
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redraw();
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});
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redraw();
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return {
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el: host,
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redraw,
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setDisabled(flag) {
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isDisabled = Boolean(flag);
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host.dataset.disabled = isDisabled ? "1" : "0";
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redraw();
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},
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count() {
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return items.length;
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},
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};
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}
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Reference in New Issue
Block a user