353363 - If css overflow value is not 'visible', then child's offsetLeft(js) and offsetTop(js) are wrong.

Status: UNCONFIRMED

(Core :: DOM: Core & HTML, defect, P5)

Description

[Topper]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-TW; rv:1.8.0.7) Gecko/20060909 Firefox/1.5.0.7
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-TW; rv:1.8.0.7) Gecko/20060909 Firefox/1.5.0.7

If a div element's css overflow property value is not visible(i.e. auto,hidden or scroll), then the javascript offsetLeft and offsetTop values of child element of this div element is wrong.


Reproducible: Always

Steps to Reproduce:
1. Create a div element, which css property overflow is auto.
2. Create a child div element of above div element.
3. Get child div element's offsetLeft and offsetTop.

Actual Results:  
Child div element's offsetLeft and offsetTop are wrong.
The result offsetLeft value happens to be the correct value substracts the border-left-width of parent div element. The result offsetTop value happens to be the correct value substracts the border-top-width of parent div element.

Comment 1

[Topper]

Attachment: Create bug, and workaround

Comment 2

[Adam Guthrie]

If I understand this bug correctly, I think it may be fixed in current trunk builds.

Comment 3

[Topper]

var bo = document.getBoxObjectFor(element);
Values of bo.x and bo.y are wrong(the same problems).

Comment 4

[Topper]

Please check bug#356066.

Comment 5

[Topper]

Attachment: show case 2

update previous case

Comment 7

[Daniel.S]

Is this an actual bug? Safari agrees with our values, but I'm not fancy with trusting Safari. Opera gets different values.

Comment 8

[Johan R]

This bug Still exists in FF3.1 beta (see attached addtional showcase)

Comment 9

[Johan R]

Attachment: Show offsetLeft offsetTop bug with overflow != visible

Comment 10

[Firefox Bug Husbandry Bot]

https://bugzilla.mozilla.org/show_bug.cgi?id=1472046

Move all DOM bugs that haven't been updated in more than 3 years and has no one currently assigned to P5.

If you have questions, please contact :mdaly.