621323 - Lighting steals focus from full screen programs

Status: NEW

(Calendar :: General, defect)

Description

[Konomi]

User-Agent:       Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b8) Gecko/20100101 Firefox/4.0b8
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-GB; rv:1.9.2.13) Gecko/20101207 Lightning/1.0b2 Thunderbird/3.1.7

Wheneve I start a full screen program with Lightning running it makes the taskbar overlay the program when I click back to the program it does it again. This happens for every program going full screen. It only happens if I have aero on and it only happens with Lightning enabled, Thunderbird on it's own does not cause the problem.

Reproducible: Always

Steps to Reproduce:
1. Install Thunderbird
2. Install Lightning
3. Run a full screen program such as a game
Actual Results:  
Taskbar shows over the full screen program.

Expected Results:  
No taskbar overlaying the full screen program.

Comment 1

[Martin Schröder [:mschroeder]]

Nisha, is this still an issue using the recently released Lightning 1.0 (compatible with Thunderbird 8)?

Comment 2

[Konomi]

Sorry for the late reply Martin I am unable to test this anymore as I switched to linux, sorry for the very very late reply wow.

Comment 3

[Konomi]

Follow up this, is pretty old now might want to close it and reopen if anyone else gets the bug.

Comment 4

[Martin Schröder [:mschroeder]]

Resolving as incomplete for now. Anyone, feel free to file a new bug report if you experience a similar problem with a recent version of Lightning.

Comment 5

[Jim Porter (:squib)]

This continues to happen to me. This might be one good way to detect this case: <https://stackoverflow.com/questions/7009080/detecting-full-screen-mode-in-windows>.

Comment 6

[Jim Porter (:squib)]

Wait, actually *this* is the function we should be using: <https://msdn.microsoft.com/en-us/library/bb762242(VS.85).aspx>. In fact, it appears we already use it for the new mail notification.

Comment 7

[Philipp Kewisch [:Fallen] [:📆][:🧩]]

Is that exposed to xpcom in some way?

Comment 8

[Jim Porter (:squib)]

No, I don't think so, but if you need to do it from JS, you could always use js-ctypes. (Or create an XPCOM interface, but that might be overkill.)

Comment 9

[Jim Porter (:squib)]

Also, here are two relevant bugs that added this support for Firefox and Thunderbird (later, they simplified the code when we dropped XP support): bug 699014, bug 499557.