From d4e492351b55a29e875e234154fd2400acc973a8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9D=8E=E8=BF=9B?= <lijin@lijindeMac-mini.local>
Date: Mon, 27 Jul 2026 17:25:37 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E6=97=A0=20slide=20=E5=AE=B9=E5=99=A8?=
 =?UTF-8?q?=E6=97=B6=20fallback=20=E5=88=B0=20body?=
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测试页没有 page/slide-* 命名的容器，findSlides 返回 0。
新增 fallback：自动用 body 元素作为 slide 容器。
---
 convert-w2p.js                | 13 ++++++++++++-
 web-to-ppt/convert-browser.js | 13 ++++++++++++-
 2 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/convert-w2p.js b/convert-w2p.js
index aeafe46..02dac87 100644
--- a/convert-w2p.js
+++ b/convert-w2p.js
@@ -421,7 +421,18 @@ async function convert(input) {
   }
 
   const canvasArea = (canvas.width || 0) * (canvas.height || 0);
-  const slideContainers = findSlides(inputRoot, canvasArea);
+  var slideContainers = findSlides(inputRoot, canvasArea);
+  // fallback：没有匹配的 slide 容器时，用 body 作为 slide
+  if (slideContainers.length === 0) {
+    function findBody(node) {
+      if (!node) return null;
+      if (node.tag === 'BODY' && node.rect) return node;
+      if (node.children) for (const c of node.children) { const r = findBody(c); if (r) return r; }
+      return null;
+    }
+    const bodyNode = findBody(inputRoot);
+    if (bodyNode) slideContainers = [bodyNode];
+  }
   console.log(`找到 ${slideContainers.length} 个 slide 容器`);
   
   const slideGroups = slideContainers.map(s => ({
diff --git a/web-to-ppt/convert-browser.js b/web-to-ppt/convert-browser.js
index ec42832..b8697e4 100644
--- a/web-to-ppt/convert-browser.js
+++ b/web-to-ppt/convert-browser.js
@@ -140,7 +140,18 @@ async function convertToPptx(input, onProgress) {
 
   // 2. 识别 slide
   const canvasArea = (canvas.width || 0) * (canvas.height || 0);
-  const slideContainers = findSlides(inputRoot, canvasArea);
+  var slideContainers = findSlides(inputRoot, canvasArea);
+  // fallback：没有匹配的 slide 容器时，用 body 作为 slide
+  if (slideContainers.length === 0) {
+    function findBody(node) {
+      if (!node) return null;
+      if (node.tag === 'BODY' && node.rect) return node;
+      if (node.children) for (const c of node.children) { const r = findBody(c); if (r) return r; }
+      return null;
+    }
+    const bodyNode = findBody(inputRoot);
+    if (bodyNode) slideContainers = [bodyNode];
+  }
 
   // 3. 收集子节点
   const slideGroups = slideContainers.map(s => ({