For more than two years, I have been using Firefox. And Greasemonkey. Then, last week, came Google Chrome. It was at the moment I tried the new browser that I suddenly noticed I could no more live without userscripts (especially, AutoPagerize). So I started looking into the source code of Google Chrome, and found out a way to implement a userscript runtime. And that's Greasemetal. It is now available from the link below.
Technically, Greasemetal executes userscripts in the following steps.
- setup a local web server that sends userscripts to Google Chrome
- launch Google Chrome specifying the browser to connect its AutomationProxy (an interprocess communication channel of the web browser implemented for automated UI tests) to Greasemetal
As can be seen, since the entire userscript is run at the browser level, there is no support for GM_*
functions (they require userscripts to be executed under a previleged environment for security reasons). In other word, some userscripts that rely on Greasemonkey-specific features would not work on Greasemetal. Userscripts compatible with Safari (or Opera) would mostly work.
The userscripts I checked and found compatible are;
This is the first release of Greasemetal, and it still lacks a number of features (especially the UI for managing userscripts). I hope I can release the next version early (hopefully a code-signed version), but if you find any bugs or have any suggestions, please let me know (although I am afraid I might not be able to answer to compatibility problems of each userscripts). Anyway, have fun!