https://bugs.documentfoundation.org/show_bug.cgi?id=141883
Bug ID: 141883
Summary: Windows File Dialog hangs app when searching in 2
dialogs
Product: LibreOffice
Version: 7.2.0.0.alpha0+ Master
Hardware: All
OS: Windows (All)
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: UI
Assignee: [email protected]
Reporter: [email protected]
Description:
Bug 106282 fixed a crash in Windows File Dialog, but now there is a hang when
searching in 2 dialogs. The hang is due to Windows search processing and is
reproducible in Firefox and even Windows File Explorer. Newer apps like
Windows Settings and Windows Feedback Hub use a new async File Dialog which
launches each new dialog in a new PickerHost.exe process and returns the
results back to the calling process, thus avoiding the hang. However, these
APIs only appear to be on Windows 10 (and maybe Win8?) and not on Win7. It
seems the only way to avoid this hang would be to either disallow multiple file
dialogs or to implement a new process for each new File Dialog similar to
PickerHost.exe.
Steps to Reproduce:
1. Open a blank Calc spreadsheet (titled "Untitled 1")
2. Select File > New > Spreadsheet (open new window titled "Untitled 2")
3. In "Untitled 2", select File > Open
4. In "Untitled 1", select File > Open and in that dialog go to "C:" and do a
search for a unique string like "qqzz"
5. In "Untitled 2" dialog, go to "C:" and do a search for a unique string like
"qqzz"
6. In "Untitled 1" dialog, click cancel and observe application hangs
Actual Results:
Application completely hung, never responds. Have to kill it.
Expected Results:
Application cancels the search operation and returns to the main window without
hanging.
Reproducible: Always
User Profile Reset: Yes
Additional Info:
Version: 7.2.0.0.alpha0+ (x64) / LibreOffice Community
CPU threads: 12; OS: Windows 10.0 Build 19041; UI render: Skia/Raster; VCL: win
Locale: en-US (en_US); UI: en-US
Calc: CL
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