590355 - "drag"-event not containing mouse position

Status: RESOLVED DUPLICATE of bug 505521

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

Description

[A. Sel.]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.2.8) Gecko/20100722 Firefox/3.6.8
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.2.8) Gecko/20100722 Firefox/3.6.8

All data of the event-object of the "drag" event relating to the position of the mouse (screenX, etc.) is set to 0 while dragging, making it impossible to know where the mouse is during a drag.

Someone already reported this as Bug 581575, but put it into the category Firefox->General, where it will probably never be found by the right people. As I am not able to change the category of the Bug 581575, I report this as a new bug.

Thanks a lot.

Reproducible: Always

Steps to Reproduce:
1. listen to the drag-event
2. check screenX
Actual Results:  
screenX is 0

Expected Results:  
screenX should be changing as the mouse moves and will most likely not be 0

Comment 1

[Olli Pettay [:smaug][[e-mail]]]

A minimal testcase would be great.

Comment 3

[Neil Deakin]

What coordinate are you expecting here? The 'drag' event doesn't fire at specific location just at an element.

Comment 4

[A. Sel.]

Attachment: Testcase showing screenX being 0 in drag-event

Here's the testcase. just drag the span and the coordinates will be shown for the dragstart and for the drag (being 0).

Comment 5

[A. Sel.]

I'm expecting the current mouse-position, so that I can know at which screen coordinates the drag currently is. as the drag-event is the only event being periodically fired during a drag, i thought it would be the right place to retrieve the mouse-position, even if the mouse is not above the element being dragged.

Cheers.

Comment 6

[martin drapeau]

Any change on fixing this soon? It is a blocker for me.