1673000 - Colour Picker Eyedropper Always Picks Black on Wayland

Status: RESOLVED FIXED

(Core :: Widget: Gtk, defect, P2)

Description

[Kevin Cox [@kevincox:matrix.org]]

When using the HTML colour picker component and selecting the eyedropper the result will always be black. This is true weather you click on a firefox window or elsewhere on the desktop.

Comment 1

[Darkspirit]

Thanks for the report!
Confirmed on Gnome Wayland, Debian Testing, Intel/Mesa. Same behavior with Basic and WebRender on Wayland, EGL/Xwayland, GLX/Xwayland.

STR:
https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/color
Open the color picker, click on the eyedropper symbol and somewhere on the desktop. The detected color is always black.

Comment 2

[Martin Stránský [:stransky] (ni? me)]

I expect it's because Wayland sandboxes processes and does not allow to access resources of other processes. For instance for desktop sharing PipeWire is used.

Comment 3

[Kevin Cox [@kevincox:matrix.org]]

It is definitely expected, but it does need to be resolved. Is there an API for colour picker type interactions right now? If not we would probably need to propose something.

Comment 4

[Martin Stránský [:stransky] (ni? me)]

(In reply to Kevin Cox [:kevincox] from comment #3)

It is definitely expected, but it does need to be resolved. Is there an API for colour picker type interactions right now? If not we would probably need to propose something.

I'm not aware of any such API.

Comment 5

[Martin Stránský [:stransky] (ni? me)]

Jonas, do you know if there's any such API or mechanism on Wayland?
Thanks.

Comment 6

[Jonas Ådahl]

(In reply to Martin Stránský [:stransky] from comment #5)

Jonas, do you know if there's any such API or mechanism on Wayland?
Thanks.

org.freedesktop.portal.Screenshot.PickColor:

https://github.com/flatpak/xdg-desktop-portal/blob/cb54478e07f1b51537ee75179863c02b5ef97c01/data/org.freedesktop.portal.Screenshot.xml#L84

Comment 7

[Martin Stránský [:stransky] (ni? me)]

Awesome, Thanks!

Comment 8

[Martin Stránský [:stransky] (ni? me)]

Attachment: Bug 1673000 [Linux] Use Gtk color picker, r?jhorak

Comment 9

[Martin Stránský [:stransky] (ni? me)]

try: https://treeherder.mozilla.org/#/jobs?repo=try&revision=180802f25be59252a30050badcb8d3f9e15d52c6

Comment 10

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/1bbd161b6cac
[Linux] Use Gtk color picker, r=jhorak

Comment 11

[Sandor Molnar[:smolnar]]

https://hg.mozilla.org/mozilla-central/rev/1bbd161b6cac