feat(windows, linux): Add with_extension_path to WebviewBuilder

[SpikeHD]

Now that tauri-apps/wry#1403 has been merged, it's time to bring it to the Tauri side!

Adds a function to the WebviewBuilder that sets the extension path. On Windows, the directory should contain unpacked Chrome extensions. On Linux, it should contain compiled .so extensions.

[github-actions]

Package Changes Through 3c495ed

There are 6 changes which include tauri with patch, tauri-cli with patch, tauri-runtime with patch, tauri-runtime-wry with patch, tauri-utils with patch, @tauri-apps/cli with patch

Planned Package Versions

The following package releases are the planned based on the context of changes in this pull request.

package	current	next
tauri-utils	2.1.0	2.1.1
tauri-bundler	2.1.0	2.1.1
tauri-runtime	2.2.0	2.2.1
tauri-runtime-wry	2.2.0	2.2.1
tauri-codegen	2.0.3	2.0.4
tauri-macros	2.0.3	2.0.4
tauri-plugin	2.0.3	2.0.4
tauri-build	2.0.3	2.0.4
tauri	2.1.1	2.1.2
@tauri-apps/cli	2.1.0	2.1.1
tauri-cli	2.1.0	2.1.1

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[SpikeHD]

Should be fixed now 👍

[amrbashir]

Thank you

[MulverineX]

This is really useful, I'm curious though, what exactly are the compiled .so binaries for Linux in this context, and how are they an equivalent here? Are they applied directly to webkit2gtk for calling webkit APIs?

Is there an equivalent API to AddBrowserExtension in WebKit? Or more efficient methods of establishing content blocking/simulated extension APIs?

Finally, will you be looking into supporting other platforms in any way here?

[FabianLars]

This is really useful, I'm curious though, what exactly are the compiled .so binaries for Linux in this context, and how are they an equivalent here? Are they applied directly to webkit2gtk for calling webkit APIs?

I think this https://blogs.igalia.com/carlosgc/2013/09/10/webkit2gtk-web-process-extensions/ was the best intro to webkitgtk's extensions i found when i tried it out a few years ago for #4912 (comment) a noteworthy part of my comment there:
"WebExtensions (not to be confused with the WebExtensions API)" (context for the content blocking question)

Is there an equivalent API to AddBrowserExtension in WebKit?

No, webkitgtk loads all extensions it finds in the path.

Or more efficient methods of establishing content blocking/simulated extension APIs?

Also no. the epiphany project (browser using webkitgtk) has experimental WebExtension API support https://blog.tingping.se/2022/06/29/WebExtensions-Epiphany.html but the most important(?) api for content blocking webRequest is not implemented. Also, this is for epiphany specifically, and not webkitgtk as a whole so not really helpful.

Finally, will you be looking into supporting other platforms in any way here?

No. This is not up to us.

[MulverineX]

Looks like this is where one would have to start for manually implementing adblocking https://gitlab.gnome.org/GNOME/epiphany/-/blob/main/embed/ephy-filters-manager.c?ref_type=heads

And if you want full extensions:

• https://gitlab.gnome.org/GNOME/epiphany/-/issues/1823
• https://gitlab.gnome.org/GNOME/epiphany/-/issues/1819
• https://gitlab.gnome.org/GNOME/epiphany/-/issues/1806

(Extension support in epiphany is close-ish, these being the main blocking issues. If these are completed it would be possible to port the code to a native WebExtension .so for tauri)