108332 - scrollbars #4 overflow:scroll for iframe has no effect

Status: RESOLVED DUPLICATE of bug 93905

(Core :: XUL, defect)

Description

[rvj]

Assuming overflow:scroll is meant to allow the display of widget scrollbars 
irrespective of content depth, then overflow:scroll has no effect for iframe 
widget (unlike tree).

Have attached a simple test case but it appears that there is a need to treat 
the iframe widget like any other widget i.e.  allow background to be styled, 
allow 'static' scrollbars, etc

Comment 1

[rvj]

Attachment: overflow:scroll test case for iframe

Comment 2

[rvj]

Although overflow:scroll is a css spec property , its not clear whether it 
should apply to the outer scrollbars of the iframe element.

I assume it should , but if then please mark this bug as invalid

Comment 3

[rvj]

Attachment: testcase for overflow:scroll bugs

Comment 4

[Adam Katz]

confirm, attachment 61424 [details] (2nd on list) crashes mozilla 2002030309 (Win, 0.9.9).
(BE WARNED!  ... I was not ready to have mozilla crash)

Comment 5

[Boris Zbarsky [:bzbarsky]]

worksforme, linux trunk build 2002-04-20-07.  First testcase shows a light green
background and scrollbars; second testcase has scrollbars and does not crash.

Please reopen if you're still seeing the problem with a current build.

Comment 6

[rvj]

Ive tried with candidate release 1 but overflow:scroll does not seem to have 
the behavior I expect

I understand overflow:scroll should always show BOTH scrollbars. This avoids 
the scrollbars apearing and disappearing irrespective of whether the content 
fills the window.

e.g. if you set the src to www.mozilla.org, the horizontal scrollbar is NOT 
displayed - when I understand it should be 

Comment 7

[rvj]

PS Additionally the tree widget  in the second test displays double vertical
scrollbars.   (Window 98)


The auto logic for suppressing duplicate scrollbars when overflow:scroll option
is specified seems missing  (this has been reported as a separte bug but I
suspect it applies to all widgets support overflow:scroll style)
 

Comment 8

[Boris Zbarsky [:bzbarsky]]

rc1 is not a current build...  I suspect jst's iframe rewrite fixed this, and
that did not land on branch.  Please retest with a recent trunk build.

Comment 9

[John Levon]

No response ->WFM. Reporter please re-open if you still see the problem
on a current build.

Comment 10

[rvj]

Ive retested using Mozilla 1.0 under Windows 98 and only get a single vertical 
scrollbar.

As far as I understand, overflow:scroll should display both scrollbars 
irrepective of whether the content exceeds the inner width or height

I would expect the test case should display a horizontal scroll bar but no 
thumb because it does not exceed the innerwidth.

Comment 11

[Boris Zbarsky [:bzbarsky]]

This is a duplicate. We simply do not implement overflow:scroll on iframes/frames.

Comment 12

[rvj]

OK 

but its a bit suprising that it has been implimented for tree which does not 
even support horizontal scrolling  ......


... seems a bit inconsistant ?

Comment 13

[rvj]

BTW what bug was this a duplicate of ?

Comment 14

[Arthur]

*** This bug has been marked as a duplicate of 93905 ***