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List:       kfm-devel
Subject:    Re: Old Flash? Go upgrade! - New problem with konqueror
From:       koos vriezen <koos.vriezen () gmail ! com>
Date:       2010-04-18 10:11:20
Message-ID: k2zd4e708d61004180311l38f6ebf2z2b0ea8a45f3d1901 () mail ! gmail ! com
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2010/4/15 Maksim Orlovich <mo85@cornell.edu>:
>>    Hi
>>
>> Some days ago appear new problem with youtube. Each time konqueror try to
>> play
>> movie, message "Old Flash? Go upgrade!" is showed, and movie play is
>> stopped.
>
> <snip>
> Thanks for doing the analysis. Basically, what's needed is to implement
> the npruntime module, for more sophisticated scripting of plugins
> (including Flash) than what's supported now.

Confirmed that GetVariable("$version") call on a flash plugin return
the version using the flash support of kmplayer plugin.
However, I can currently only get it by calling it after the plugin is
loaded, eg in body.onLoad.
So 'appendFlash = body.appendChild(flash)) && appendFlash.GetVariable'
will only work when starting a local event loop for the time the
plugin is up and running. Known to crash konqueror on unfortunate
redirects (*).


> Unfortunately, it's extremely
> tricky to fully implement with out-of-process plugins, especially since
> the presently used IPC system, D-Bus is inadequate for the task.

Why? You mentioned that before and I only recall that the lack of
nested calls. But dbus supports nested calls just fine.
(*) That said, using the Qt eventloop for IPC is the source we cannot
block safely. Currently thinking about a way to block w/o running
processEvents (no OnlySocketNotifiers afaics), eg something with
qprocess waitForStarted(), waitForReadyRead() or so.

> It's been in my TODO list for a while, but looks like it suddenly got very
> urgent. Let's see if I can dig up the old patch that partly supported it,
> at least.
>
> Anyone reading looking for a challenge? ;-)

We also need a LiveConnect2Extension. As mentioned before, the string
based argument list/return value is too limited. We need at least a
way to pass proxies of js objects as arguments. On these proxies
get/put/call should be possible. Maybe simply use QVariant with a user
type for the proxy can work.

Koos

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