256173 - drag-drop of images to desktop fails occasionally, either with error or zero-byte file

Status: RESOLVED DUPLICATE of bug 267426

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

Description

[DAK]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.1) Gecko/20040707
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.1) Gecko/20040707

When I drag an image from a web page to the Windows desktop or any open folder
window, the image file created is sometimes empty (zero bytes).  A few times, an
error message appears (to the effect that another application is using the file).

One can typically workaround problem by repeating the drag-drop operation.  The
file is often created successfully on the second, third, or fourth try.
Occasionally, the file is never created.

The fool-proof workaround: right-click the image, and select Save Image As...



Reproducible: Sometimes
Steps to Reproduce:
1. Load any web page
2. Drag an image (JPG, GIF, etc.) from the page to the Windows desktop (or any
open folder)
3. Examine results.
4. If file is empty, repeat drag operation until valid file is created. 
Subsequent filenames are numbered (e.g. filename-1.jpg, filename-2.jpg).


Actual Results:  
Sometimes, the file is empty (zero bytes).  Other times, the file is intact. 
Usually (but not always), repeating the drag operation eventually results in a
valid file.

Expected Results:  
A valid image file should be created each and every time, as reliably as
right-clicking and selecting "Save Image As..."

Comment 1

[Charles Teague]

It appears that Mozilla is creating a 0 byte file in the user temp directory and
placing the path to that file in the FileDrop format of the dataObject attached
to the drag/drop.

Interestingly, there is a .url file with a valid path available in the
FileContents format of the dataObject.  Why not simply use the same path that
the URL of the .Url file is pointing at in the FileDrop?

Comment 2

[zug_treno]

Duplicate of bug 267426?

Comment 3

[Scott Evans]

I can't tell if this is a dupe of bug 267426, since that one involves clearing your cache, but this bug is definitely present and annoying.  Here's a quick mention from the author of Total Commander:

Total Commander :: View topic - Drag & drop images from Firefox?
http://www.ghisler.ch/board/viewtopic.php?t=5772

"Sorry, I haven't found a way yet to correct this problem. When FF reports the drop to Total Commander, the file exists, but it is empty."

Comment 4

[Aaron Lawrence]

*** This bug has been marked as a duplicate of 253711 ***

Comment 5

[Aaron Lawrence]

Hm, maybe not a dupe as this is images dragged from a web page.
However the root cause is probably the same - the temporary cope of the file being made...

Comment 6

[OstGote!]

Right, not Mailnews. It is fixed on Trunk (FF 3.0/SeaMonkey 1.5).