116118 - Setting hidden="false" on <outlinercols> should hide all columns

Status: RESOLVED DUPLICATE of bug 117921

(Core :: XUL, defect)

Description

[Håkan Waara]

Sometimes you don't want to show the columns in an outliner, so now that we 
have a mandatory <outlinercols> element, it would be useful to be able to set 
hidden="false" on that to hide them all.

Comment 1

[Blake Ross]

Two questions that beg answering:

1. If we were to have such a capability, why would we use hidden="false"?  
False means NOT true.  That statement, if read aloud in English, would be "NOT 
hidden".  In Spanish, "NO ocultado."

2. In what cases do you want to hide all the outliner columns but not hide the 
outliner itself? What would be visible in the outliner if all of its columns 
were hidden?

Comment 2

[Håkan Waara]

Setting hidden on an <outlinercols> would mean that you hid the actual column
_headers_. This is very useful when you don't support any kind of sort, and the
columns headers are just useless... It frees up some space.

Comment 3

[Jan Varga [:janv]]

The current implementation of outliner body depends on visible column headers.
We need headers to get width and order of columns.

Only workaround I know is to minimize headers height.

Comment 4

[Jan Varga [:janv]]

*** This bug has been marked as a duplicate of 117921 ***