Fix djvu crash on long-press on scanned text (#8626)

2 years ago · 6a5f330b3b
parent e2a5fd5c36
commit 6a5f330b3b
1 changed files with 3 additions and 1 deletions
--- a/frontend/document/koptinterface.lua
+++ b/frontend/document/koptinterface.lua
@ -668,7 +668,9 @@ function KoptInterface:getNativeTextBoxesFromScratch(doc, pageno)
        local page = doc._document:openPage(pageno)
        page:getPagePix(kc)
        local boxes, nr_word = kc:getNativeWordBoxes("src", 0, 0, page_size.w, page_size.h)
-        DocCache:insert(hash, CacheItem:new{ scratchnativepgboxes = boxes, size = 192 * nr_word }) -- estimation
+        if boxes then
+            DocCache:insert(hash, CacheItem:new{ scratchnativepgboxes = boxes, size = 192 * nr_word }) -- estimation
+        end
        page:close()
        kc:free()
        return boxes