563679 - Pressing space after using CTRL+SHIFT+X to align a text input's value right makes the cursor jump around

Status: RESOLVED INVALID

(Core :: DOM: Editor, defect)

Description

[Sam Benson]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3 (.NET CLR 3.5.30729)
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3 (.NET CLR 3.5.30729)

Messing about with keyboard shortcuts, i realised you can align text to the right on text inputs. Following this discovery I noticed pressing space momentarily causes the cursor to jump to the left then return to the right. 

It's not a problem that would affect performance, but it doesn't look great!

Reproducible: Always

Steps to Reproduce:
1. Focus a text input
2. Press CTRL + SHIFT + X
3. Start typing - make sure you press space. 
Actual Results:  
The cursor jumps around. 

Expected Results:  
The cursor should stay aligned to the right.

Comment 1

[Ria Klaassen (not reading all bugmail)]

Confirmed on Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.3a5pre) Gecko/20100503 Minefield/3.7a5pre

Comment 2

[Masayuki Nakano [:masayuki] (he/him)(JST, +0900)(Away until 6/30 except 24)]

I think that this is a valid behavior for RTL.

Comment 3

[Simon Montagu :smontagu]

Yes, this is invalid -- note that CTRL+SHIFT+X isn't intended to align the input to the right (though that happens as a side-effect) but to set the directionality of the input for entering right-to-left languages such as Hebrew, Arabic, Persian, etc. etc. If you then enter left-to-right text in the input, the cursor behaviour can be counter-intuitive.