修复: 本地存储写满静默丢数据——失败告警 + 导入图片体积闸门

2026-08-17 10:11:47 +08:00
parent f58fea1f68
commit aad7e6f76f
3 changed files with 37 additions and 4 deletions
@@ -149,6 +149,18 @@ function doImport() {
  let insertedImages = 0
  let insertedSlides = 0

+  // 图片体积闸门：localStorage 约 5MB 字符上限，超限导入后刷新会丢图
+  if (images.length > 0) {
+    const imgChars = images.reduce((s, e) => s + (e.data?.length || 0), 0)
+    let deckChars = 0
+    try { deckChars = JSON.stringify(store.getDeck()).length } catch (e) { /* ignore */ }
+    const QUOTA_CHARS = 4_500_000
+    if (deckChars + imgChars > QUOTA_CHARS) {
+      emit('toast', '图片过大：导入后约 ' + ((deckChars + imgChars) / 1048576).toFixed(1) + 'MB，超本地存储上限（约 5MB），刷新可能丢失。请压缩图片、减少数量，或先清理文库/旧图')
+      return
+    }
+  }
+
  // 1. 图片 → 当前幻灯片
  if (images.length > 0) {
    if (images.length === 1) {