Unable to drag multiple selection of books in macOS

Bug #1851060 reported by Michael Bleistein on 2019-11-02
This bug affects 3 people
Affects Status Importance Assigned to Milestone

Bug Description

Selecting a single book in calibre 4.2 (Catalina 10.15.1) allows dragging the book to other locations.

Selecting more than one book does not allow any dragging. Trying to drag just changes the range selection.

After an attempt to drag multiple books it is not possible anymore to drag a single book until calibre is restarted.

To our memory this error appeared with calibre 4.2.

Simon Bale (simonbale) wrote :

I have also noticed this problem.
It is found with both single and multiple sections.
Sometimes it clears when Calibre is restarted, but more recently this has not been the case.

Simon Bale (simonbale) wrote :

Further investigation: on relaunch Calibre allows single selection drag and drop, but when multiple is tried, and will not work, it becomes impossible to drag and drop a single selection.

This is because of a bug in Qt on Catalina, nothing I can do about it.
See https://bugreports.qt.io/browse/QTBUG-78264

If an when it is fixed in Qt it will work in calibre again.

 status invalid

Changed in calibre:
status: New → Invalid
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