1897512 - Dragging stops working after quick drag

Status: RESOLVED DUPLICATE of bug 1897115

(Core :: Widget: Gtk, defect)

Description

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Attachment: MOZ_LOG=timestamp,WidgetDrag:5 firefox

Quickly dragging some ui elements causes dragging to stop working. It happens with regular text and links but not with tabs or in about:* pages.
I can consistently reproduce it in v126 with a clean profile. mozregression points to 6c14242aa73e30ddd1dcb8c3ccdac18b5d8ff5c2.

Attached are logs from MOZ_LOG=timestamp,WidgetDrag:5 firefox.

System: Void Linux 6.6.30, X11, spectrwm

mozregression:

32:29.49 INFO: Last good revision: eeb2c178aa51da771855f2e5983385a5568b3de7
32:29.49 INFO: First bad revision: 6c14242aa73e30ddd1dcb8c3ccdac18b5d8ff5c2
32:29.49 INFO: Pushlog: https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=eeb2c178aa51da771855f2e5983385a5568b3de7&tochange=6c14242aa73e30ddd1dcb8c3ccdac18b5d8ff5c

Comment 1

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Attachment: recording

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::Widget: Gtk' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 3

[BugBot [:suhaib / :marco/ :calixte]]

:emilio, since you are the author of the regressor, bug 1875031, could you take a look? Also, could you set the severity field?

For more information, please visit BugBot documentation.

Comment 4

[Emilio Cobos Álvarez (:emilio)]

Martin has done a huge rework of D&D on Linux in bug 1897512 and related, if you can repro semi-consistently (I haven't been able to, but I haven't tried on spectrwm), could you check if this happens to be fixed on the latest nightly?

Comment 5

[shr]

If the latest is 128.0a1 then it is not fixed. The bug is also on GNOME (45, don't know about 46).

Comment 6

[shr]

Fwiw, this appears to be the same issue as bug 1897115, down to the "drag-and-drop action with a slight 'stutter' when dropping the selected item back on the window."

Comment 7

[Emilio Cobos Álvarez (:emilio)]

Ok, let's track these two together. Just to confirm, this is GNOME+X11, right? It seems this doesn't affect Wayland.

Comment 8

[shr]

On X11, yes