[webkit-dev] Pushing data to plugin

[Jack Wootton]

Yes, but the problem is that program control is in the plugin instance
object and not the Plugin itself.  Plugin instance objects are created
after the plugin is created.

1. Plugin created (have reference to Browser via NPNetscapeFuncs.
2. Plugin object returned to Browser.

/* Some time later */

3. Browser parses an instance of the <object> tag with a MIME type
matching the plugin.
4. Browser creates a plugin instance object, but does not provide a
reference to to NPNetscapeFuncs.



On Fri, Mar 20, 2009 at 4:11 PM, Mugdha Jain <MugdhaJain at smarttech.com> wrote:
>
> No that won't work. What you need to do is store the function pointer passed
> by the browser and use that to call the required function. That would mean
> you have to do the following:
>
> g_NPNFuncs.geturl
>
> Where g_NPNFuncs is: g_NPNFuncs = browser below.
>
> // Mach-o entry points
> NPError NP_Initialize(NPNetscapeFuncs *browserFuncs)
> {
>     browser = browserFuncs;
>     return NPERR_NO_ERROR;
> }
>
> Browser would call this function on the plugin when it loads the plugin for
> the first time.
>
> Hope that helps.
> Mugdha
>
> -----Original Message-----
> From: webkit-dev-bounces at lists.webkit.org on behalf of Jack Wootton
> Sent: Fri 3/20/2009 9:35 AM
> To: Alexey Proskuryakov
> Cc: webkit-dev at lists.webkit.org
> Subject: Re: [webkit-dev] Pushing data to plugin
>
> So I would have thought this would work inside the plugin instance
> object method New (aInstance is of type NPP)
>
>
> NPNetscapeFuncs* browser = static_cast<NPNetscapeFuncs*>(aInstance.ndata);
>
> But it doesn't :P
>
>
> 2009/3/20 Alexey Proskuryakov <ap at webkit.org>:
>>
>> 20.03.2009, ? 18:15, Jack Wootton ???????(?):
>>
>>> I'm unsure about how I can access the Browser functions.
>>
>>
>> You can see how this works in one of our example plug-ins. E.g., form
>> TestNetscapePlugin:
>>
>> NPNetscapeFuncs *browser;
>>
>> // Mach-o entry points
>> extern "C" {
>>    NPError NP_Initialize(NPNetscapeFuncs *browserFuncs);
>>    NPError NP_GetEntryPoints(NPPluginFuncs *pluginFuncs);
>>    void NP_Shutdown(void);
>> }
>>
>> // Mach-o entry points
>> NPError NP_Initialize(NPNetscapeFuncs *browserFuncs)
>> {
>>    browser = browserFuncs;
>>    return NPERR_NO_ERROR;
>> }
>>
>> - WBR, Alexey Proskuryakov
>>
>>
>>
>
>
>
> --
> Regards
> Jack
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>
>



-- 
Regards
Jack