On 8/23/12 10:04 PM, Glenn Adams wrote: > My concern on this is that it will be a rather never-ending spec > maintenance problem, requiring new partial interfaces on a regular basis > (i.e., every time new CSS props are introduced or changed). Why is that particularly a problem? > It would sure be much easier to define once in prose with a general > purpose g/s pair. I think getting the wording of such prose might not be trivial, for what it's worth. > Note also that if you do it that way page script won't be able to > hook the getters and setters for CSS properties, which is also not > that great. > > > How much is this used? Could you give a code snippet showing such usage > (to make sure I understand you)? Sure. Something like this: // Log and reject all attempts to set the "display" property from // script var propName = "display"; var proto = CSS2Properties.prototype; var desc = Object.getOwnPropertyDescriptor(proto, propName); Object.defineProperty(proto, propName, { get: desc.get, set: function() { console.log("Attempt to set " + propName + " denied"); } }); // And make sure that can't be undone Object.seal(proto); Obviously you could also log and then forward to the original getter or setter and so forth. People do this all the time right now with methods in the web platform. Granted, for methods there's a bit less boilerplate needed. -BorisReceived on Friday, 24 August 2012 05:19:14 UTC
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