NEW 292058
[GTK] Incorrect and offset custom drag-and-drop previews on Trello.com and similar implementations 
https://bugs.webkit.org/show_bug.cgi?id=292058
Summary [GTK] Incorrect and offset custom drag-and-drop previews on Trello.com and si...
Jeff Fortin
Reported 2025-04-25 06:21:01 PDT
Created attachment 475044 [details] Demonstration video on Trello.com With Epiphany 48 (WebKitGTK 2.48.1), Technology Preview, etc., as well as any previous version, drag-and-drop is broken compared to other browsers (ex: Firefox) on websites that use custom previews for drag operations, such as Trello. Please see the two attached videos comparing Epiphany incorrect rendering (and offset position from the mouse cursor) with Firefox's correct rendering and behavior. One video is recorded on a Trello.com kanban board, while the other is on an independent imitation I found on https://www.codemzy.com/blog/trello-drag-and-drop-in-react
Attachments
Demonstration video on Trello.com (1.41 MB, video/mp4)
2025-04-25 06:21 PDT, Jeff Fortin 		no flags
Details
Demonstration video on an independent imitation of Trello's drag-and-drop behavior (2.07 MB, video/mp4)
2025-04-25 06:21 PDT, Jeff Fortin 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Jeff Fortin
Comment 1 2025-04-25 06:21:50 PDT
Created attachment 475045 [details] Demonstration video on an independent imitation of Trello's drag-and-drop behavior
Jeff Fortin
Comment 2 2025-04-25 06:25:17 PDT
The ReactJS code snippet implementation linked above at least lets you test something similar without needing to login to Trello as a first step; it's not *exactly* the same symptoms on the Epiphany side (as you can see it also gets "stuck" in the 2nd video, unlike in the 1st video), but it's pretty close.
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