Sha256: 4c19a70308a1fbed1af2e149ba9c76c470233445090ab1d403de02c3e72446bb
Contents?: true
Size: 1.23 KB
Versions: 5
Compression:
Stored size: 1.23 KB
Contents
/* vim:set ts=2 sw=2 sts=2 expandtab */
/*jshint asi: true undef: true es5: true node: true browser: true devel: true
forin: true latedef: false globalstrict: true */
"use strict";
var reducible = require("reducible/reducible")
var isReduced = require("reducible/is-reduced")
function open(target, type, options) {
/**
Capture events on a DOM element, converting them to a reducible channel.
Returns a reducible channel.
## Example
var allClicks = open(document.documentElement, "click")
var clicksOnMyTarget = filter(allClicks, function (click) {
return click.target === myTarget
})
**/
var capture = options && options.capture || false
return reducible(function reducDomEvents(next, result) {
function handler(event) {
result = next(event, result)
// When channel is marked as accumulated, remove event listener.
if (isReduced(result)) {
if (target.removeEventListener)
target.removeEventListener(type, handler, capture)
else
target.detachEvent(type, handler, capture)
}
}
if (target.addEventListener) target.addEventListener(type, handler, capture)
else target.attachEvent("on" + type, handler)
})
}
module.exports = open
Version data entries
5 entries across 2 versions & 1 rubygems