On Wed, Jan 30, 2013 at 12:19 PM, Gonzalo Odiard <gonz...@laptop.org> wrote:
> Any reason to prefer Firefox over Webkit? Firefox/Android has made great strides recently, and is a much more friendly environment for building add-ons. Chrome Web Apps are rather limited in comparison (no full screen mode on Android), and AFAIK the mobile version of chrome doesn't support extensions. Firefox/Android also has much better WebGL and video support at the current time. Getting HTML5 video to play on Webkit/Android is a nightmare. The Chrome team doesn't really want to compete with native apps, where the Firefox team is making web apps (and boot2gecko) a priority. But really, good modern web code should be browser-agnostic. It shouldn't be hard to make a framework that runs under Firefox/Android on Android and Webkit/Sugar when running on Sugar. From activity code, the Sugar API ought to be made using the postMessage API, which is cross-browser. How those messages are processed under the hood is much less important; you can use different implementations for different platforms. After playing around with canvas a lot, I'm not a huge fan of using it to implement UIs. You give up much of the i18n, accessibility, and introspection support one you start playing with canvases. It's fine to use under-the-covers to draw backgrounds, etc, but it's better to use real HTML/CSS widgets whenever possible. There's also a big API change coming up with respect to retina-displays and canvases. (It's also suprisingly difficult to get animations on canvases to display smoothly across browsers; you end up depending on a lot of details in your browser's graphic acceleration and context invalidation stack. http://cscott.net/Projects/TurtleScript/canvastest.html has a simple test case which I had a lot of difficultly getting to perform well on the XO and Android. Generally speaking, animating widgets and using CSS animations are much easier to get to work with good performance.) That said, canvas is fine it you want to implement a paint program or logo or a pippy environment that lets you draw pictures. paper.js is one library which people seem to like for that purpose. processing is another. --scott -- ( http://cscott.net )
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