release: 发布 v0.5.0

新增共享 Preview Engine，统一 Web 连续预览、快速分页、Playwright PDF 与 Electron PDF；实现稳定前缀复用和修改位置后的增量分页，保留媒体块按文档顺序串行回填与单次重排。完善跨端链接与桌面文档工作流：Web 受控处理锚点和 HTTP/HTTPS 外链；Desktop 支持本地路径、file URI、系统协议、多窗口、同文件单例、Markdown 当前或新窗口打开，以及聚焦时外部文件变化提示。统一四套内置主题名称并默认使用 Typora Github；修复连续预览双滚动条、ECharts 尺寸、PDF 本地链接、围栏代码块 Typora DOM 与重复行内样式；桌面发行链强制完整重建内嵌 Web，避免安装包携带陈旧资源。发布 Web/Compose 与 Windows NSIS/ZIP：镜像 yixiong/md-to-pdf:v0.5.0 已健康部署；NSIS SHA-256 为 60992D1FDCA513F46346C78478537EB4159D8C0E76B41ECF3CDC25BE77707D92，ZIP SHA-256 为 D74F82293FB67126E583546CBA894569EFC9A0B1B6343FAC648CCC95F1D188D8，本机安装版已升级至 v0.5.0。验证：全项目 238 项测试通过，类型检查、生产构建和 git diff --check 通过；Web 快速/连续/精确预览、Compose、Desktop 多窗口、窗口状态、文件关联、链接与代码块均完成真实环境验收。
2026-07-28 18:01:22 +08:00
parent 925b0d1485
commit 58087d0c7e
86 changed files with 4564 additions and 1204 deletions
@@ -0,0 +1,109 @@
+export interface PagedBreakTokenLike {
+  node?: Node;
+  offset?: number;
+}
+
+export interface PagedPageLike {
+  element: HTMLElement;
+  startToken?: PagedBreakTokenLike;
+}
+
+export interface IncrementalPaginationPlan {
+  prefixLength: number;
+  invalidationPageIndex: number;
+  startToken: PagedBreakTokenLike | undefined;
+}
+
+function getNodeReference(node: Node | undefined) {
+  if (!node) {
+    return undefined;
+  }
+  if (node instanceof HTMLElement && node.dataset.ref) {
+    return node.dataset.ref;
+  }
+  return node.parentElement?.dataset.ref;
+}
+
+function pageContainsReference(
+  page: PagedPageLike,
+  reference: string
+) {
+  return Array.from(
+    page.element.querySelectorAll<HTMLElement>("[data-ref]")
+  ).some((element) => element.dataset.ref === reference);
+}
+
+export function findSourceNodePageIndex(
+  pages: readonly PagedPageLike[],
+  sourceNode: Node | undefined
+) {
+  const reference = getNodeReference(sourceNode);
+  if (!reference) {
+    return undefined;
+  }
+  const pageIndex = pages.findIndex((page) =>
+    pageContainsReference(page, reference)
+  );
+  return pageIndex >= 0 ? pageIndex : undefined;
+}
+
+export function createIncrementalPaginationPlan(
+  prefixLength: number,
+  previousNodeCount: number,
+  sourceNodes: readonly Node[],
+  pages: readonly PagedPageLike[]
+): IncrementalPaginationPlan | undefined {
+  if (
+    prefixLength <= 0 ||
+    pages.length === 0 ||
+    prefixLength > sourceNodes.length ||
+    prefixLength > previousNodeCount
+  ) {
+    return undefined;
+  }
+
+  const boundaryNode =
+    sourceNodes[prefixLength] ??
+    sourceNodes[prefixLength - 1];
+  const boundaryPageIndex =
+    findSourceNodePageIndex(pages, boundaryNode);
+  if (boundaryPageIndex === undefined) {
+    return undefined;
+  }
+
+  // 媒体块允许回填到上一页，因此变化边界必须额外向前回退一页。
+  const invalidationPageIndex = Math.max(
+    0,
+    boundaryPageIndex - 1
+  );
+  return {
+    prefixLength,
+    invalidationPageIndex,
+    startToken: pages[invalidationPageIndex]?.startToken
+  };
+}
+
+export function assignPagedSourceReferences(
+  root: Node,
+  createReference: () => string
+) {
+  const elements: Element[] = [];
+  if (root instanceof Element) {
+    elements.push(root);
+  }
+  const queryRoot = root as Node & {
+    querySelectorAll?: ParentNode["querySelectorAll"];
+  };
+  if (typeof queryRoot.querySelectorAll === "function") {
+    elements.push(...Array.from(queryRoot.querySelectorAll("*")));
+  }
+
+  for (const element of elements) {
+    if (!element.hasAttribute("data-ref")) {
+      element.setAttribute("data-ref", createReference());
+    }
+    if (element.id) {
+      element.setAttribute("data-id", element.id);
+    }
+  }
+}