[webkit-dev] Extending WebKit JavaScript support

Kalle Vahlman kalle.vahlman at gmail.com
Thu Nov 13 02:51:39 PST 2008

2008/11/13 Christian Dywan <christian at twotoasts.de>:
> Am Thu, 13 Nov 2008 01:34:17 -0800 (PST)
> schrieb Iulian <iliescu.iulian at gmail.com>:
>> I would like to extend JavaScript support with new objects (similar
>> to Math, RegEx, String). Because these objects needs to interact with
>> the OS (Linux) i cannot use JavaScript Object support to create these
>> objects from JavaScript.
>> I studied WebKit documentation but i don't know what should i do to
>> add such an object.
> Heya,
> if Linux means Gtk, something like the following will do:
>    JSClassDefinition js_class_def = kJSClassDefinitionEmpty;
>    js_class_def.className = g_strdup (name);
>    js_class_def.getPropertyNames = _js_class_get_property_names_cb;
>    js_class_def.hasProperty = _js_class_has_property_cb;
>    js_class_def.getProperty = _js_class_get_property_cb;
>    js_class_def.setProperty = _js_class_set_property_cb;
>    JSClassRef js_class = JSClassCreate (&js_class_def);
>    JSObjectRef js_object = JSObjectMake (js_context, js_class,
>    instance);
> Where you need to implement the underscore prefixed functions yourself.
> For more pointers I suggest the public headers of JavaScriptCore, the
> two test programmes, and the file gjs.c in the Midori source tree. The
> API of javascript is pretty intuitive once you got the hang of it.

This might be of interest too as an example, it creates a DBus JS
object with two methods (which are implemented in C) and few (static)
properties for JS application usage:


Kalle Vahlman, zuh at iki.fi
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