347886 - Selection won't go out of blocks with overflow-x: auto

Status: VERIFIED DUPLICATE of bug 42676

(Core :: DOM: Selection, defect)

Description

[Benjamin Smedberg]

If you have a block (maybe just a pre?) with overflow-x: auto, and you start selecting with the mouse in side the block, you cannot extend the selection outside of the block. Testcase forthwith. This is not a problem with 1.8 branch, only trunk.

Comment 1

[Benjamin Smedberg]

Attachment: Testcase HTML

Comment 2

[Benjamin Smedberg]

bz says that since overflow-x causes a scrollable view that perhaps this isn't quite as incorrect as I thought. And that it's only a regression from 1.8 in that we started supporting overflow-x. I'd still expect selection to work within the same document, however.

Comment 3

[Ria Klaassen (not reading all bugmail)]

I do see a regression but only a very old one: between 2004-09-04:07 and 2004-09-05:07. In newer builds I see the same behaviour: impossible to select the third line when you start selecting in the second line.

Comment 4

[Brian Polidoro]

When I narrow the browser window so that the sentence in the pre tag in the testcase does not fit anymore there is no horizontal scrollbar given unless I set a height on the pre block.  

This is not a problem with a div that has white-space:nowrap.  The div is made taller and a horizontal scrollbar is added.

Comment 5

[Robert O'Callahan (:roc) (email my personal email if necessary)]

(In reply to comment #4)
> When I narrow the browser window so that the sentence in the pre tag in the
> testcase does not fit anymore there is no horizontal scrollbar given unless I
> set a height on the pre block.  

That works for me. Try increasing the font size; narrowing the browser window can mislead you because at some point the content area stays the same size and stars overflowing the browser window.

Comment 6

[Brian Polidoro]

Ok but then why doesn't a horizontal scrollbar appear at the bottom of the page in that case when the minimum content size is reached?

Comment 7

[Robert O'Callahan (:roc) (email my personal email if necessary)]

What's happening is that the browser UI is overflowing its window. If you make the window narrow enough you will see that e.g. the "busy" spinner in the top right gets cut off

Comment 8

[Uri Bernstein]

This is just a special case of bug 42676.