Introducing pointer.js

[Matt Claypotch]

A common problem web developers face is abstracting mouse and touch events.
You can do feature detection, but some devices will issue both! To help
alleviate this, I created pointer.js, located at
https://github.com/mozilla/pointer.js .
It uses CustomEvent to create a 'pointer' type of event that abstracts
mouse and touch events. The main feature of note is a 'pointerclick' event
that uses various heurstics to have a responsive touch event that is
resistant to errant clicks from scrolling or finger grazes.

Try it out and let me know what you think! Pull Requests/Issues/feedback
very welcome.

~potch

[David Ascher]

Cool. Can you compare and contrast with something like hammer.js?

-- da
(typed with thumbs)

~potch
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[Matt Claypotch]

I will test out hammer.js and report back!

Without testing, the differences are:
* hammer.js support *way* more events
* hammer.js is 10 times the size of pointer.js (minified to minified)

I'll evaluate performance on B2G, but pointer.js was built with B2G perf in
mind.

Thanks for pointing that lib out!

~potch

[Anthony Ricaud]

See also the polyfill by Microsoft for the Pointer Event spec:
http://handjs.codeplex.com/

Also, note that Firefox and Chrome (maybe others) have a no-delay click
event when you use a fixed viewport.