1478696 - Page scrolls if you drag-and-hold on bugzilla UI images on a bugzilla page

Status: RESOLVED WORKSFORME

(Core :: DOM: Copy & Paste and Drag & Drop, defect, P3)

Description

[Mayank Bansal]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:63.0) Gecko/20100101 Firefox/63.0
Build ID: 20180726100339

Steps to reproduce:

1. Create new nightly profile
2. Go to https://bugzilla.mozilla.org/show_bug.cgi?id=1310271 (or any sufficiently long bugzilla page)

3. Drag-and-hold the "new bug" icon


Actual results:

as the drag-and-hold object reaches the page boundary, the scrollbar scrolls


Expected results:

not so

Comment 1

[Mayank Bansal]

Attachment: bandicam 2018-07-26 20-41-52-248.mp4

Comment 2

[Mayank Bansal]

One more step :

2.5: scroll the page so that the scrollbar is roughly in the middle

Comment 3

[Mayank Bansal]

Till the dragged elemets outline crosses the page-header-banner and the actual page, the page will scroll

Comment 4

[Alice0775 White]

This is introduced by bug 41708.

Yes, it makes me feel annoying, this is because scrolling starts as soon as the drag item reaches the edge of the scrollable area. It is too sensitive.
We need some delay before scrolling starts. See also Bug 1360432.

Comment 5

[David Olah]

I managed to reproduce this issue on Nightly 63.0a1 (2018-07-30), Firefox 62.0b11 and Firefox 61.0.1, on Windows 10, Ubuntu 16.04 and Mac OSx.

I also added the Bug from Comment 4 in the See also section. It may be a duplicate.

Comment 6

[Mayank Bansal]

cant repro