1664170 - Image drag and drop preview is misplaced and "slides" into places in some situations.

Status: RESOLVED DUPLICATE of bug 941356

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

Description

[Dennis Schubert [:denschub]]

Attachment: Simplified testcase

A web developer accidentally found a weird edge-case in how we place our image previews while drag-and-dropping an image.

Open the attached test case, scroll down until you see the kitten, then drag the kitten around with your mouse. You will notice that the image preview is placed outside the browser window at first, and then slides into the correct position.

All the CSS and nested elements in the testcase appear to be required. I couldn't minimize this further, and quite frankly, I also don't know what's going on here. I'm filing this within DOMs Drag and Drop, but this could be some UI issue as well?

Comment 1

[Dennis Schubert [:denschub]]

Attachment: Short screen capture showing the sliding preview.

Also attaching a screen capture, just in case this is not reproducible everywhere.