Scrolling and drag selection are not dismissed after switch to another application




15 years ago
13 years ago


(Reporter: windfall, Assigned: saari)


Windows XP

Firefox Tracking Flags

(Not tracked)




15 years ago
User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4b) Gecko/20030516 Mozilla Firebird/0.6
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4b) Gecko/20030516 Mozilla Firebird/0.6

When I do the scrolling or selecting in the page, and use Alt+Tab at the same
time to switch to another application, scrolling/selecting mode is not
dismissed. When I switch back to Firebird, I have to click to stop scrolling or

Note: the similar effect can be achive by pressing Start button on Windows keyboard.

Reproducible: Always

Steps to Reproduce:
1. Launch Notepad
2. In Mozilla, start scrolling by dragging the scrollbar's thumb
3. Without releasing mouse button, press Alt+Tab to switch to Notepad

ALTERNATIVELY: press Start button on Windows keyboard, press Ctrl+Esc for start
menu, press Ctrl+Shift+Esc to launch Program Manager, etc.

Actual Results:  
Mozilla is still scrolling/selecting although it is not active anymore.

Expected Results:  
Stop scrolling/selecting at the moment it losts focus.

Comment 1

15 years ago
Great - I faced this problem every now and then, but newer realized a way to
really reproduce it! :)

Nevertheless this can also be seen using Mozilla SeaMonkey (Windows; U;
WinNT4.0; en-US; rv:1.5a) Gecko/20030603 - hence this one belongs to Product
"Browser" after searching for possible dupes.

btw: you missed to mention step 4. in your steps to reproduce: you have to
release mouse button once switched to notepad and 5. you have to switch switch
back to Moz.Firebird / SeaMonkey and hover over the scroll bar + move mouse =>
by doing so you realise that scrolling is still enabled though mouse button has
been released.
Should go to Browser -> Event Handling if I understand correctly.  Moz is not
recognizing the release of the mouse button because it happens outside of the app.

Able to duplicate in Mozilla Thunderbird too, definitely on the trunk and not
related to any specific app.  Windows in some cases will not recognize release
of keys or mouse buttons, I used to have it happen playing quake and fall off
rooftops, but this is a little newer.

Comment 3

15 years ago
Did also some search in Bugzilla bit wasn't able to find a related bug => moving
over to SeaMonkey...
Component: General → Event Handling
Product: Phoenix → Browser
Version: unspecified → Trunk

Comment 4

15 years ago
Reassigning QA and owner...
Assignee: blaker → saari
QA Contact: asa → desale
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Last Resolved: 13 years ago
Resolution: --- → EXPIRED
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