[Sugar-devel] Bundling plugins with Browse

[Tomeu Vizoso]

On Tue, Dec 9, 2008 at 3:21 PM, Sayamindu Dasgupta <sayamindu at gmail.com> wrote:
> On Tue, Dec 9, 2008 at 12:20 AM, Tomeu Vizoso <tomeu at sugarlabs.org> wrote:
>> On Mon, Dec 8, 2008 at 7:45 PM, Sayamindu Dasgupta <sayamindu at gmail.com> wrote:
>>> On Tue, Dec 9, 2008 at 12:07 AM, Tomeu Vizoso <tomeu at sugarlabs.org> wrote:
>>>> On Mon, Dec 8, 2008 at 7:34 PM, Sayamindu Dasgupta <sayamindu at gmail.com> wrote:
>>>>> Hi all,
>>>>> We are trying to figure out a way to bundle the mozplugger plugin[1]
>>>>> in Browse, so that PDF files can be viewed from within Browse itself.
>>>>> Does anyone know how this can be done. Apart from the mozplugger
>>>>> plugin itself, we need to have the m4 binary to help mozplugger parse
>>>>> its config file, as well as the application which _actually_ renders
>>>>> the PDF.
>>>>> Normally we can modify the OS image, but it would be easier for us to
>>>>> include the entire thing in Browse and make a new Browse bundle.
>>>>> Any thoughts/ideas/comments ?
>>>>
>>>> What are the binaries, libraries and other resources that are needed
>>>> by the evince plugin and aren't available on the 8.2.0 image?
>>>>
>>>
>>>
>>> We won't use the evince plugin (as it does not have Journal support).
>>> I have a simple python PDF viewer which takes care of rendering the
>>> PDF. Everything that needs to be installed on the XO are at:
>>> http://dev.laptop.org/~sayamindu/pdf_embed/
>>
>> I haven't done these tricks myself, but I know that some activities
>> ship executables and libraries inside their bundles.
>>
>> Two places to look at are modifying PATH and LD_LIBRARY_PATH and
>> insert in them paths inside the bundle.
>>
>> Also, you can set some mozilla-related paths at startup, see hulahop.startup().
>>
>> Would this be enough?
>>
>> strace -e open may be helpful in seeing which files it looks for and
>> fails to find.
>>
>
>
> How do I do the strace for activity startup ? In an XO, it's pretty
> easy to do via rainbow, but how do I do this in sugar-jhbuild ?
> There's a MOZ_PLUGIN_PATH which looks promising, but somehow it's not
> working for me. Strace should be able provide clues.

You can strace an activity easily if you launch it from Terminal.
Otherwise you will need to hack the sugar sources.

strace -f sugar-launch Web

should work, I think.

HTH,

Tomeu