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 +1,135 @@
+// @vitest-environment happy-dom
+
+import { describe, expect, it } from "vitest";
+import {
+  assignPagedSourceReferences,
+  createIncrementalPaginationPlan,
+  findSourceNodePageIndex
+} from "../src/incremental-pagination.js";
+
+function createSourceNode(reference: string) {
+  const node = document.createElement("section");
+  node.dataset.ref = reference;
+  return node;
+}
+
+function createPage(
+  references: string[],
+  startReference?: string
+) {
+  const element = document.createElement("article");
+  for (const reference of references) {
+    element.append(createSourceNode(reference));
+  }
+  return {
+    element,
+    startToken: startReference
+      ? {
+          node: createSourceNode(startReference),
+          offset: 0
+        }
+      : undefined
+  };
+}
+
+describe("快速预览增量分页计划", () => {
+  it("从变化块所在页的前一页开始续排", () => {
+    const sourceNodes = [
+      createSourceNode("a"),
+      createSourceNode("b"),
+      createSourceNode("c"),
+      createSourceNode("d")
+    ];
+    const pages = [
+      createPage(["a"]),
+      createPage(["b"], "b"),
+      createPage(["c"], "c"),
+      createPage(["d"], "d")
+    ];
+
+    expect(
+      createIncrementalPaginationPlan(
+        2,
+        sourceNodes.length,
+        sourceNodes,
+        pages
+      )
+    ).toEqual({
+      prefixLength: 2,
+      invalidationPageIndex: 1,
+      startToken: pages[1]?.startToken
+    });
+  });
+
+  it("尾部新增时以旧文档最后一个块定位并回退一页", () => {
+    const sourceNodes = [
+      createSourceNode("a"),
+      createSourceNode("b")
+    ];
+    const pages = [
+      createPage(["a"]),
+      createPage(["b"], "b")
+    ];
+
+    expect(
+      createIncrementalPaginationPlan(
+        2,
+        sourceNodes.length,
+        sourceNodes,
+        pages
+      )?.invalidationPageIndex
+    ).toBe(0);
+  });
+
+  it("无法验证边界时拒绝使用旧分页缓存", () => {
+    const sourceNodes = [createSourceNode("a")];
+    const pages = [createPage(["other"])];
+
+    expect(
+      createIncrementalPaginationPlan(
+        1,
+        sourceNodes.length,
+        sourceNodes,
+        pages
+      )
+    ).toBeUndefined();
+    expect(
+      createIncrementalPaginationPlan(
+        0,
+        sourceNodes.length,
+        sourceNodes,
+        pages
+      )
+    ).toBeUndefined();
+  });
+
+  it("通过 data-ref 在分页结果中反查源节点页码", () => {
+    const pages = [
+      createPage(["a"]),
+      createPage(["b", "c"])
+    ];
+    expect(
+      findSourceNodePageIndex(pages, createSourceNode("c"))
+    ).toBe(1);
+  });
+
+  it("只为新节点补充分页引用并保留既有引用", () => {
+    const root = document.createElement("article");
+    root.dataset.ref = "existing-root";
+    root.id = "write";
+    const child = document.createElement("p");
+    child.id = "paragraph";
+    root.append(child);
+    let sequence = 0;
+
+    assignPagedSourceReferences(root, () => {
+      sequence += 1;
+      return `generated-${sequence}`;
+    });
+
+    expect(root.dataset.ref).toBe("existing-root");
+    expect(root.dataset.id).toBe("write");
+    expect(child.dataset.ref).toBe("generated-1");
+    expect(child.dataset.id).toBe("paragraph");
+  });
+});