View source for Download resuming

== Download resuming ==

For a description of the support in Core: [http://developer.mozilla.org/en/docs/Implementing_Download_Resuming]

My general idea is that frontend code, upon pressing pause, calls Suspend() on the channel, and if that fails, calls Cancel() (in a way that does not delete the file).

In all cases it saves the entity id from nsIResumableChannel.

On resume, if it has a channel (browser not exited in the meantime + the suspend call succeeded), it calls Resume(). if that fails, it creates a new channel, sets the entity id using nsIResumableChannel, and opens the channel, saving the stream to the file.

Issues:
* Should that stuff live more in core?
* What about cancel-deleting-the-file vs cancel-not-deleting-it?
* <strike>Should the temp file be an init arg to nsITransfer?
** [https://bugzilla.mozilla.org/show_bug.cgi?id=298842 bug 298842]</strike>

--[[User:Biesi|Biesi]] 15:23, 26 Jun 2005 (PDT)