Display the wsl node in FolderPicker and FileSavePicker dialog navigation#6326
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Problem
The WSL navigation node (
\\wsl.localhost) is hidden in the navigation pane ofFolderPickerandFileSavePickerdialogs due to undocumented behavior in the Windows Common Item Dialog.FileOpenPickeris unaffected.Fix
PickerCommon::WslNodeRevealer- a per-dialogIFileDialogEventshandler - is registered beforeShow(). On the firstOnFolderChangeit:IServiceProvider->SID_STopLevelBrowser->IShellBrowser->INameSpaceTreeControl.\\wsl.localhost, falling back to\\wsl$).INameSpaceTreeControl::SetItemStateto reveal it.Changes
WslNodeRevealerwith per-instance state.PollTimerProcis astatictrampoline (required byTIMERPROC) that delegates toRevealWslNodeWhenReady; all other methods are non-static.WslNodeRevealerinPickSaveFileAsync.WslNodeRevealerinPickSingleFolderAsyncandPickMultipleFoldersAsync.After Fix
Before Fix