Hi everybody! This is a proposal to expose support for “content blockers” [1] (a.k.a. “user content filters”) in the WebKitGTK+ API. Yesterday I took a quick look to the Cocoa port, and it turns out that the implementation is in WebCore waiting to be wrapped. Like user style sheets and user scripts, I think it fits to expose it with methods on WebKitUserContentManager [2]:
void webkit_user_content_manager_add_filter(WebKitUserContentManager*
WebKitUserContentFilter*);
void
webkit_user_content_manager_remove_all_filters(WebKitUserContentManager*);
(Plus functions to instantiate and ref/unref WebKitUserContentFilter objects,
like it's done for WebKitUser{Script,StyleSheet}.)
It would be great to support this, because it would allow programs using
WebKitGTK+ to reuse the user content filtering framework, and avoid the
current situation in which each has to reimplement this functionality
as a WebProcess plug-in. Not to mention that the user content filter
support from WebCore is faaaast (rules are compiled to machine code!) :-)
If this sounds like a good idea, I can invest some of my time to make it
happen — I have implemented most of WebKitUserContentManager and I it does
not look like it would take a lot of effort.
WDYT?
--
⌨ Adrian
P.S: I would love to see Epiphany's ad blocking support rewritten to make use
of user content filters. I could even try to do that myself as to exercise
the new API.
---
[1] https://webkit.org/blog/3476/content-blockers-first-look/
[2]
http://webkitgtk.org/reference/webkit2gtk/stable/WebKitUserContentManager.html
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