[whatwg] New File attributes creationDate, modificationDate and size

Eric Uhrhane ericu at google.com
Tue May 18 14:45:14 PDT 2010

On Fri, May 14, 2010 at 5:05 PM, Arun Ranganathan <arun at mozilla.com> wrote:
> On 5/12/10 4:25 AM, Ashley Sheridan wrote:
>> On Wed, 2010-05-12 at 00:05 -0400, Biju wrote:
>>> It would be good if we can also get the same at server side when user
>>> upload a file using form with file controls
>>> ie, like the suggestion at
>>> https://bugzilla.mozilla.org/show_bug.cgi?id=549253
>>> (it works even with javascript disabled)
>>> Also remember modificationDate can be a time before creationDate on
>>> windows.
>>> This is because modificationDate get copied when you copy a file,
>>> hence it almost shows modificationDate of the actual content.
>>> creationDate on other hand is file creation time on the
>>> folder/directory and when you copy a file to a new directory, it will
>>> be showing the coping time.
>>> PS, for JS option there is mozilla bug 390776
> I intend to update the File API so that the File object exposes creationDate
> and modificationDate.

You might want to consider making an async getMetadata function; see
discussion ending at [1].  Async because the modification time can
change often, and as a generic all-metadata function because it's easy
to expand and experiment with.  And if you put that right in the File
API, then I can inherit it from the FileSystem API instead of having
to spec it myself ;'>.


[1] http://lists.w3.org/Archives/Public/public-device-apis/2010Apr/0054.html

More information about the whatwg mailing list