Bug 142298 – content extensions need universal actions

• Component: WebCore Misc.
• Status: RESOLVED DUPLICATE

[Alex Christensen]

Most of the css in content extensions will probably be applied to all pages.  We don't want to compile a bunch of .* triggers, so let's add a faster way to do this.

This might not be the best way to do this.  I'm open to better ideas.  We mentioned making a new default style sheet, but I'm not sure if we actually want to do that.

[Alex Christensen]

Created attachment 247878 [details]
Patch

[Alex Christensen]

Created attachment 247888 [details]
Patch

[Benjamin Poulain]

Comment on attachment 247888 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=247888&action=review

> Source/WebCore/contentextensions/ContentExtensionCompiler.cpp:114
> +        if (trigger.urlFilter == ".*")

We should not do that. There are other ways to write the same thing. You could do "(.+)?" for example.

The way to detect that is check if:
-There is any final state in the epsilon closure of the start state.
-Alternatively, every transition from the epsilon closure of the start state ends in a state closed on a final state.

> Source/WebCore/contentextensions/ContentExtensionParser.cpp:54
> +        trigger.urlFilter = ".*";

I guess you could also leave the trigger empty and just accept that in the other parts.

> LayoutTests/ChangeLog:11
> +        * http/tests/usercontentfilter/basic-filter.html:
> +        * http/tests/usercontentfilter/basic-filter.html.json:
> +        * http/tests/usercontentfilter/block-all.html: Added.
> +        * http/tests/usercontentfilter/block-all.html.json: Added.

Wooot! More tests. You make me feel bad about my patch :)

[Alex Christensen]

*** This bug has been marked as a duplicate of bug 142799 ***