617632 - Add capability to print from out-of-process content

Status: RESOLVED WORKSFORME

(Core :: Printing: Output, defect)

Description

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

This is likely to be a fairly big project.  I don't understand all that's required.

We need this for FF5, don't need it for for fennec4.

Comment 1

[Olli Pettay [:smaug][[e-mail]]]

Printing actually does work already in content process, at least on linux.
The progress UI needs to be disabled though.

Comment 2

[Benjamin Smedberg]

It will probably require a totally different architecture when we do sandboxing, in that case ;-).

Comment 3

[Olli Pettay [:smaug][[e-mail]]]

Yes, I'm very well aware of that. But as a first step getting printing working
in a simple way is IMO ok.

Comment 4

[Olli Pettay [:smaug][[e-mail]]]

For sandboxed printing, could we implement another version of nsRenderingContext
which would serialize the parameters to method calls and send the data to
chrome process? Or does the printing/painting use also lower level APIs (thebes)?

Comment 5

[Olli Pettay [:smaug][[e-mail]]]

Seems like Thebes is used quite a bit.

Comment 6

[Benjamin Smedberg]

sandboxing will depend on azure and azure remoting in any case, so I think we can table the sandboxing portion until that is fleshed out.

I'd really like to understand if there is anything left that needs to be done here for desktop Firefox unsandboxed, either core-platform work or making the printing UI work as expected.

Comment 7

[Olli Pettay [:smaug][[e-mail]]]

For the UI we need to be able forward progress information to chrome, 
or show a content process window for the progress.

Comment 8

[Benjamin Smedberg]

We should probably forward the information rather than trying to create a content-process dialog.