406752 - Esc key kan not be cancelled

Status: UNCONFIRMED

(Core :: DOM: Events, defect, P5)

Description

[robinpelgrim]

User-Agent:       Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.0.3705; .NET CLR 2.0.50727)
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9b2pre) Gecko/2007120305 Minefield/3.0b2pre

preventDefault (on keydown event) does not work for Esc key 

Reproducible: Always

Steps to Reproduce:
Example will be attached (later)

Comment 1

[Olli Pettay [:smaug][[e-mail]]]

Is this a regression from FF 2.0?

Comment 2

[robinpelgrim]

Attachment: Example for not preventable key esc event

The example shows the right behaviour for pressing the tab key by showing "by tab value" and preventing tabbing,
it shows the wrong behaviour for pressing the escape key by (in the end) not showing "my cancel value not shown" (I think the default esc action is still performed).

Comment 3

[robinpelgrim]

It's not working in FF 2.0 either,
Anyway for me it is important that it works in FF 3, I can not find any workaround.

Comment 4

[robinpelgrim]

I debugged the code and it turned out that
nsAutoCompleteController::HandleEscape(PRBool *_retval) is reached when pressing the esc key.
When setting autocomplete="off" for the input, the preventDefault works as expected (this is a workaround for me).
So probably the nsAutoCompleteController doesn't handle 'preventDefault' properly...

Comment 5

[Firefox Bug Husbandry Bot]

https://bugzilla.mozilla.org/show_bug.cgi?id=1472046

Move all DOM bugs that haven't been updated in more than 3 years and has no one currently assigned to P5.

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