1755746 - When mousedown is on an element, but mouseup outside of the window, window gets "mouseup" but no "click"

Status: NEW

(Core :: DOM: UI Events & Focus Handling, defect, P3)

Description

[Julien Wajsberg [:julienw]]

Attachment: click2.html

STR:

1. Open the attachment.
2. Make sure the window isn't fullscreen.
3. "mousedown" on one of the colored squares, "mouseup" outside of the window.

=> We get a "mouseup" event on the window, but no "click" event.

I think that either we should have none of them (the "mouseup" is actually happening outside of the window) or both (as the window is a common ancestor that gets both "mousedown" and "mouseup").

My understanding is that removing the "mouseup" event in this case could break existing websites, so instead we could add the "click" event.

Comment 1

[Julien Wajsberg [:julienw]]

Note: the STR works as expected in Chrome, I mean I get both mouseup and click events on window.

Comment 2

[Masayuki Nakano [:masayuki] (he/him)(JST, +0900)]

I think that if bug 1755752 is valid, this is also valid.

Comment 3

[Masayuki Nakano [:masayuki] (he/him)(JST, +0900)]

Aligning to Webcompat Priority.