CODEWITHSUNDEEP
objective-cmacosnpapibrowser-plugin
Brian Postow
Brian Postow

Reputation: 12187

sample mac Firefox Plugins?

I'm trying to re-write an old image-viewing plugin for the mac. The old version uses QuickDraw (I said it was old) and resources (really really old) and so it doesn't work in Firefox 3.6 (which is why I'm re-writing it)

I know some Objective C, and so I figure I'm going co re-write this in that using new-fangled Mac routines and nibs, etc. However, I don't know how to start. I've got the BasicPlugin example that comes with mozilla source, so I know how to create a plugin with entrypoints, etc. However, I don't know how to create the nib, and how to interface Obj-C with the entrypoints, etc.

Does anyone know of a more advanced sample for mac than BasicPlugin.bundle? (Preferably simple enough that I can just look at it and understand it...)

thanks.

Upvotes: 0

Views: 493

Answers (1)

Georg Fritzsche
Georg Fritzsche

Reputation: 98984

Sadly i don't really know of any good "intermediate" example. However, integrating Obj-C isn't that difficult. Thus, following is a short overview of what needs to be done.

You can use Obj-C and C/C++-sources in the same project, its just recommendable to keep them seperated to some extent. This can for example be done by letting the source file with the entry-points and other NPAPI-interfacing stay plain C or C++ files and e.g. forward calls into the plugin from there.
Opaque pointers help to keep a clean seperation, see e.g. here.

The main changes to your plugin include switching to different drawing and event models. These have to be negotiated in NPP_New(), here is an example for the drawing model. When using Cocoa and to support 64bit enviroments, you need to use the Cocoa event model.

To draw UI elements you should be able to use a NSGraphicsContext from the CGContextRef and then draw an NSView in the context. See also the details provided in this post and its follow-ups.

Upvotes: 2

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