[chromium-dev] Re: novel use of v8 - CSS Scripting Layout
when I use V8IsolatedWorld I cannot access the window from script, the value is undefined. I don't know what more security may be required beyond this. thanks for your analysis. Darrel --~--~-~--~~~---~--~~ Chromium Developers mailing list: chromium-dev@googlegroups.com View archives, change email options, or unsubscribe: http://groups.google.com/group/chromium-dev -~--~~~~--~~--~--~---
[chromium-dev] Re: novel use of v8 - CSS Scripting Layout
I notice that Greg Badros, www.badros.com/greg/doc/resume.html, is at Google now since March. I'd love to see him implement Constraint CSS (CCSS) in chrome, www.badros.com/greg/papers/css-uist99.pdf, and get the support and recognition it deserves. what is he working on? --~--~-~--~~~---~--~~ Chromium Developers mailing list: chromium-dev@googlegroups.com View archives, change email options, or unsubscribe: http://groups.google.com/group/chromium-dev -~--~~~~--~~--~--~---
[chromium-dev] Re: novel use of v8 - CSS Scripting Layout
that's unfortunate. it's lamentable that CCSS can't find a home. --~--~-~--~~~---~--~~ Chromium Developers mailing list: chromium-dev@googlegroups.com View archives, change email options, or unsubscribe: http://groups.google.com/group/chromium-dev -~--~~~~--~~--~--~---
[chromium-dev] Re: novel use of v8 - CSS Scripting Layout
The next step for your specification is to go to the W3C. yes, I've submitted a request to webkit.org a few days ago. I'm not advocating that anybody adopt the code. I merely wanted a POC for my own benefit and analysis before publicizing the proposal. I'd rather prefer to see some form of CCSS adopted by W3C, but after ten years it does not seem realistic. currently, it is difficult to manipulate absolutely positioned elements in CSS. they are virtual pariahs exiled to client-side JS. I think something like what I propose here is a start to assimilate what is currently done in CS JS into CSS with the added benefit of support for more powerful layout specific objects. Finally, features at this layer should go into WebKit directly, not into Chromium. Once your spec has been approved by W3C, you should take your feature request to webkit.org. I did make all mods in WebKit directly, the goal being to be as minimally invasive as possible. code extensions/modifications are enclosed in and isolated by appropriate preprocessor statements. CSS expressions have be a huge pain point for Internet Explorer, both in terms of security and in terms of performance. We'll want to be extremely careful before implementing a similar feature. using the parallel universe V8IsolatedWorld addresses the security concerns for the most part. performance is always an issue with javascript. that's why I chose v8. whether JS is executed in CSS or in js tags or includes, the performance issue remains. with absolutely positioned elements there is not much choice in our current state. having said that, the POC does push v8 to the limit as far as reentrancy is concerned. some analysis may reveal room for v8 improvements. perhaps reusable Scripts across contexts, although perhaps not simultaneously. thanks for your thoughtful replies. --~--~-~--~~~---~--~~ Chromium Developers mailing list: chromium-dev@googlegroups.com View archives, change email options, or unsubscribe: http://groups.google.com/group/chromium-dev -~--~~~~--~~--~--~---
[chromium-dev] Re: novel use of v8 - CSS Scripting Layout
security is an issue no matter where javascript is executed. it is addressed here... http://groups.google.com/group/chromium-dev/browse_thread/thread/118689ceda861163 I'm using this execution in a parallel universe technique in my implementation. --~--~-~--~~~---~--~~ Chromium Developers mailing list: chromium-dev@googlegroups.com View archives, change email options, or unsubscribe: http://groups.google.com/group/chromium-dev -~--~~~~--~~--~--~---
[chromium-dev] novel use of v8 - CSS Scripting Layout
I've produced a proposal for a CSS Scripting Layout specification. I've extended Chrome as a sample implementation. Of course, it relies heavily on v8 and I have gleaned a lot of useful knowledge from this group over the course of its development. I think it is a novel use of v8 and may be of interest to v8 developers. at the core is a constraint satisfaction system that requires a high degree of v8 reentrancy. I'd like to hear feedback from this community. TIA http://blogs.eforceglobal.com/dkarisch/archive/2009/07/16/536.aspx CSS Scripting Layout... a new set of CSS properties and object specifications that together compose a powerful declarative means to describe complex arbitrary layout criteria that are both reusable and extensible. The new properties are Javascript expressions that are woven together in a constraint resolving system to perform a specified layout. Additionally, a set of global objects defined in the constraint resolution Javascript execution environment enable powerful operations to be expressed succinctly resulting in more readable and compact layout specifications. --~--~-~--~~~---~--~~ Chromium Developers mailing list: chromium-dev@googlegroups.com View archives, change email options, or unsubscribe: http://groups.google.com/group/chromium-dev -~--~~~~--~~--~--~---
