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  1. Qt
  2. QTBUG-76263

Support lazy requests in QMacPasteboard::setMimeData

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Details

    • macOS
    • c69a2448ab129d88411a4778f2350dcf971dc623 (qt/qtbase/5.15)

    Description

      On windows and linux it is possible to provide custom `QMimeData` classes to provide data when they are used.

      This is relevant if data is generated on the fly (e.g. requested via network link or similar)

       

      On MacOS this would also be possible, but since `QCocoaClipboard::setMimeData` calls `QMacPasteboard::setMimeData` with `EagerRequest` the data needs to be generated immediately

      (initiating unnecessary network traffic in our case)

       

      Since this behaviour can not be changed via default Qt API this use case does not work on mac os at all.

      Changing that single line to `LazyRequest` will fix the issue.

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-54663 Crash for Mac apps involving resolving promises on the paste board

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-54832 [macOS] crash on exit after drag-n-drop

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed
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              vhilshei Volker Hilsheimer
              akallabeth Armin Novak
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                Resolved:

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