Bug 266929

Summary: PDF has wrong offset after device rotate
Product: WebKit Reporter: duy <duy>
Component: PDFAssignee: Nobody <webkit-unassigned>
Status: NEW    
Severity: Normal CC: simon.fraser, thorton, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: iPhone / iPad   
OS: iOS 17   
Attachments:
Description Flags
Here is the stack of that strange event that setting pdf offset to 0. none

duy@microsoft.com
Reported 2023-12-29 00:26:35 PST
Created attachment 469238 [details] Here is the stack of that strange event that setting pdf offset to 0. After pdf rotate, there may occurs a weird event that reset pdf scrollview's offset to 0; Causing it jump to the first page after rotate. And sometimes the the size is also incorrect after rotate. But calling "webScrollView.contentInset = webScrollView.contentInset" may continue to finish the rotate event of pdfHostViewController, and then reset the offset to the right one. This bug can not repro on simulator, only repro in real device. And sometime, the behavior is also different for release build and debug build.
Attachments
Here is the stack of that strange event that setting pdf offset to 0. (464.31 KB, image/png)
2023-12-29 00:26 PST, duy@microsoft.com 		no flags
Details
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Simon Fraser (smfr)
Comment 1 2024-01-02 09:11:12 PST
Could you give more details about the OS and device config here, and what URL is loaded?
Radar WebKit Bug Importer
Comment 2 2024-01-05 00:27:12 PST
<rdar://problem/120525019>
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