450951 - allow to retrieve/restore the monitor a window is on in multi-monitor setups

Status: RESOLVED WORKSFORME

(Core :: Widget, defect)

Description

[Simon Bünzli]

This is needed more accurate session restoration on all platforms that support multiple monitors.

Comment 1

[Simon Bünzli]

At least on Windows the screenX/screenY attributes on a window's documentElement seem to be relative to the primary screen's top left corner. Unless we want to correctly position windows for multi-screen setups where the monitors change position (which IMO we needn't), this already is WORKSFORME.

What about the other platforms we support?

Comment 2

[Sylvain Pasche]

Attachment: HTML page that shows some screen related window properties

This is a hack I wrote some times ago to debug screen issues.

I can confirm that Mac behaves the same as Windows. The screenX/screenY is relative to the main screen (the one containing the menu if I'm correct).

Comment 3

[Sylvain Pasche]

Hmm, shouldn't SessionStoreService::restoreDimensions() already take care of restoring to the right monitor?

Comment 4

[Simon Bünzli]

It should indeed. WORKSFORME if Linux works the same as Windows and OS X.

Comment 5

[Sylvain Pasche]

well, my previous comment 3 should rather be for bug 461285.

Comment 6

[Sylvain Pasche]

Yes, Linux works the same.