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  1. Qt
  2. QTBUG-72420

Widget rejects drag and drop operation if it's not the first widget the drag enters

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Details

    • macOS, Windows
    • 52e0d9e23c3f7a1b0faf6649cf3dd825bcfd4f08

    Description

      Since Qt 5.12, if a widget that accepts drops is not the first widget that is hovered during the drag operation (regardless of the other widgets' acceptDrops property), the drag operation is rejected, although the mime data was successfully received & parsed and event->acceptProposed() was called.

      The problem does not occur on Qt 5.11.3. I've attached a minimal working example as well as two videos demonstrating the issue with Qt 5.12 and 5.11.3.

      I can reproduce the issue on macOS and Windows, I haven't tested Linux.

      Attachments

        1. DragDropIssue.zip
          3 kB
          Andreas Schulz
        2. Qt 5.11.3.mov
          9.72 MB
          Andreas Schulz
        3. Qt 5.12.mov
          10.00 MB
          Andreas Schulz

        Issue Links

          duplicates

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-72844 REG->5.12 [Qt] Cannot drag text from QLineEdit and drop onto a widget unless setAcceptDrops is set on the drop site's parent

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
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            People

              chehrlic Christian Ehrlicher
              longhanks Andreas Schulz
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              Dates

                Created:
                Updated:
                Resolved:

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