Details
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Bug
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Resolution: Incomplete
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P1: Critical
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None
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6.3.0
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None
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macOS
Description
Reproduction steps:
- Drag n drop some files from the Finder to the application
- Once the files drop is acepted, initial a single drag within the application
- Qt crahes with
Terminating app due to uncaught exception 'NSGenericException', reason: 'There are 10 items on the pasteboard, but 1 drag images. There must be 1 draggingItem per pasteboardItem.
Note:
In
bool QCocoaDrag::maybeDragMultipleItems(){
...
// *** sometimes when qtUrls.size() is 1, the number of items in the cocoa paste
// board is still the same as the previous drag from the OS. The condition below will leave this function,
// and use the deprecated API `dragImage:at:offset:event:pasteboard:source:slideBack:` and cause an exception then crash.
//
// What I do to workaround this is to make the condition check below:
// if (qtUrls.size() <= 1 && [dragBoard.pasteboardItems count] <= 1)
//
if (qtUrls.size() <= 1) {
// Good old -dragImage: works perfectly for this ...
return false;
}
...
}