648998 - Implement FileSaver

Status: RESOLVED WONTFIX

(Core :: DOM: Core & HTML, enhancement)

Comment 1

[Curtis Koenig [:curtisk-use curtis.koenig+bzATgmail.com]]]

sec review requested by khuey set keyword

Comment 2

[Curtis Koenig [:curtisk-use curtis.koenig+bzATgmail.com]]]

setting flag for sec-review-complete https://wiki.mozilla.org/Security/Reviews/FileSaver

Comment 3

[Geoff Flarity]

Is this still happening? 

Currently the best way to save a binary Blob is to use:
https://github.com/eligrey/FileSaver.js

For something like an image, it'll just get displayed in a new tab and you have to go save as. For generic data files, the name is just gobbledygook and there's no way for the user to type in their own.

Comment 4

[Kyle Huey (Exited; not receiving bugmail, old account, do not use)]

Yes, its still happening.  I've been busy unfortunately.  I'm trying to find someone else or an intern to finish this off.

Comment 5

[Jesper Kristensen]

I have some questions about this new API:

Will it use the contentType of the input Blob to determine the file type / file name extension?

Will it be possible to suggest a file name? If a download originates from the server side, we can suggest a file name using "Content-Disposition: attachment; filename=...".

Does Mozilla plan to implement something like FileSaverStream? ( http://code.google.com/p/chromium/issues/detail?id=65615#c14 )

Comment 7

[sfornengo]

For a year now I also used a polyfill for firefox to save binary Blob:
https://github.com/eligrey/FileSaver.js
but under firefox we still can not suggest a file name like expected...
Is this subject progresses ?
can we expect a native blob saveAs function coming soon ?

Comment 8

[Jesper Kristensen]

Seems like we will have the same functionality by bug 676619

Comment 9

[:Ms2ger (he/him; ⌚ UTC+1/+2)]

If we don't want this anymore, can we get rid of dom::FileIOObject?

Comment 10

[Ben Bucksch (:BenB)]

wow, <a href="data:text/plain,hello" download="myfile.txt"> is a lot more elegant than a FileSaver object.

Comment 11

[Jeff Muizelaar [:jrmuizel]]

FileWriter, which is an extension of this, is used by mega.co.nz for writing out very large files. This seems like very useful functionality to have.