586189 - hidden elements when designMode is on shouldn't be accessible when using DELETE or BACKSPACE

Status: NEW

(Core :: DOM: Editor, defect)

Description

[Jaroslav Benc]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.8) Gecko/20100722 Firefox/3.6.8
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.8) Gecko/20100722 Firefox/3.6.8

When designMode is enabled and there is an element such as <span style="display:none">non visible text</span> editor shouldn't allow to access this element characters using BACKSPACE or DELETE keys. Other navigation keys work fine. 

Reproducible: Always

Steps to Reproduce:
1. create a document with designMode on and add some text
2. add another text in the middle of the text and style it as display:none
3. place cursor at the end of your text and start pressing backspace
Actual Results:  
When cursor reaches the hidden text it starts edit this text even if it's hidden - character by character but cursor doesn't move

Expected Results:  
backspace should delete whole hidden text node on one press so it won't need multiple presses. Same as if using left/right keys - cursor jumps to a previous visible character when pressed. It works in webkit so I guess it should work like this by default

Comment 1

[Jaroslav Benc]

Attachment: Simple example with some visible and some hidden text - try to delete the text using backspace or delete

Comment 2

[(mostly gone) XtC4UaLL [:xtc4uall]]

Reproduceable with Mozilla/5.0 (Windows NT 5.1; rv:2.0b6pre) Gecko/20100911 Firefox/4.0b6pre ID:20100911041541.