From 92426fe57e1f5bbb93b54083bbff55d0bdd6dd7a Mon Sep 17 00:00:00 2001
From: augushong <augushong@163.com>
Date: Sun, 17 May 2026 13:35:19 +0800
Subject: [PATCH] =?UTF-8?q?feat(typesetting):=20=E6=AE=B5=E8=90=BD?=
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- paginateContent正常块换页判断增加按句拆分逻辑
- p/blockquote超过剩余空间时调用splitOversizedBlock拆分
- 拆分后的句子块逐步填入当前页，多余推到后续页
- img/pre/table/h2/h3/h4不拆分，直接换页
- remainingSpace>50条件防止极小碎片
- 拆分失败时回退到原有换页逻辑
---
 public/static/js/phone-image.js | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/public/static/js/phone-image.js b/public/static/js/phone-image.js
index e7ec469..731ed13 100644
--- a/public/static/js/phone-image.js
+++ b/public/static/js/phone-image.js
@@ -663,6 +663,33 @@ var PhoneImageEngine = (function () {
             var nextBlock = (i + 1 < blocks.length) ? blocks[i + 1] : null;
 
             if (currentHeight + block.estimatedHeight > contentAreaHeight && currentPageBlocks.length > 0) {
+                var remainingSpace = contentAreaHeight - currentHeight;
+                // 检查是否可以按句拆分来填满剩余空间
+                var canSplit = (block.type === 'p' || block.type === 'blockquote') &&
+                    block.estimatedHeight <= contentAreaHeight && remainingSpace > 50;
+
+                if (canSplit) {
+                    // 按句拆分，逐步填入页面
+                    var splitParts = splitOversizedBlock(block, contentAreaHeight);
+                    if (splitParts.length > 1) {
+                        // 逐句填入当前页剩余空间
+                        for (var sp = 0; sp < splitParts.length; sp++) {
+                            if (currentHeight + splitParts[sp].estimatedHeight > contentAreaHeight && currentPageBlocks.length > 0) {
+                                contentPages.push(generateContentPage(
+                                    currentPageBlocks, pageNumber, sizeConfig, false
+                                ));
+                                currentPageBlocks = [];
+                                currentHeight = 0;
+                                pageNumber++;
+                            }
+                            currentPageBlocks.push(splitParts[sp]);
+                            currentHeight += splitParts[sp].estimatedHeight;
+                        }
+                        // 跳过后面的 currentPageBlocks.push(block)，用拆分后的块代替
+                        continue;
+                    }
+                }
+                // 不可拆分(img/pre/table/h)或拆分失败，直接换页
                 contentPages.push(generateContentPage(
                     currentPageBlocks, pageNumber, sizeConfig, false
                 ));