417930 - Usability: Involuntary selection of address bar suggestion if mouse "jumps" while typing.

Status: RESOLVED DUPLICATE of bug 408723

(Firefox :: Address Bar, enhancement)

Description

[Hans Schmucker]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9b4pre) Gecko/2008021504 Minefield/3.0b4pre
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9b4pre) Gecko/2008021504 Minefield/3.0b4pre

This is really only an annoyance (although a fairly major one for me), however it has potential to cause a vulnerability in combination with bug #417798 . Because the address bar and the suggestion list have a common focus pressing Enter while typing will cause the currently selected suggested to be opened instead of the typed in text... unfortunately it's fairly easy to accidentally select a suggestion by bumping against the table or if the mouse cursor jumps a pixel like you see on many cheap mice.

I'd suggest to split the focus for the location bar and the suggestion list... 

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Location bar focused -> ArrowKeyDown : Suggestion list gets focused. If a suggestion entry is selected, select next entry. Otherwise select first entry.

Location bar focused -> ArrowKeyUp : Suggestion list gets focused. If a suggestion entry is selected, select previous entry. Otherwise select last entry.

Location bar focused -> Enter : Launch currently typed in address.

Location bar focused -> Escape : Unfocus Location bar.

Location bar focused -> OnMouseOver Suggestion List: Select entry but don't focus (dimmed selection).

Location bar focused -> OnClick Suggestion List: Copy entry location to location bar, launch.

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Suggestion list focused -> ArrowKeyDown: If last entry selected, unselect entry, focus location bar.

Suggestion list focused -> ArrowKeyUp: If first entry selected, unselect entry, focus location bar.

Suggestion list focused -> Enter : Launch currently selected suggestion.

Suggestion list focused -> Escape : Unfocus selection list (dim, but don't remove highlight), focus Location bar.

Suggestion list focused -> OnClick Location bar : Unfocus Suggestion list (dim, but don't remove highlight).

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That way enter would only mean launch when the Suggestion list is actually active.

Reproducible: Always

Steps to Reproduce:
1. Click on the location bar
2. Move the mouse out of the way downwards
3. Start typing
4. Move the mouse a bit (by bumping against the table or just keep the mouse in your right hand while typing with your left one)
5. Press Enter
Actual Results:  
The suggestion entry over which the mouse is parked gets opened.

Expected Results:  
The typed in address should be opened.