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// Add events to elements
;[ 'click'
, 'dblclick'
, 'mousedown'
, 'mouseup'
, 'mouseover'
, 'mouseout'
, 'mousemove'
// , 'mouseenter' -> not supported by IE
// , 'mouseleave' -> not supported by IE
, 'touchstart'
, 'touchmove'
, 'touchleave'
, 'touchend'
, 'touchcancel' ].forEach(function(event) {
/* add event to SVG.Element */
SVG.Element.prototype[event] = function(f) {
var self = this
/* bind event to element rather than element node */
this.node['on' + event] = typeof f == 'function' ?
function() { return f.apply(self, arguments) } : null
return this
}
})
// Initialize listeners stack
SVG.listeners = []
SVG.handlerMap = []
// Add event binder in the SVG namespace
SVG.on = function(node, event, listener, binding) {
// create listener, get object-index
var l = listener.bind(binding || node.instance || node)
, index = (SVG.handlerMap.indexOf(node) + 1 || SVG.handlerMap.push(node)) - 1
, ev = event.split('.')[0]
, ns = event.split('.')[1] || '*'
// ensure valid object
SVG.listeners[index] = SVG.listeners[index] || {}
SVG.listeners[index][ev] = SVG.listeners[index][ev] || {}
SVG.listeners[index][ev][ns] = SVG.listeners[index][ev][ns] || {}
// reference listener
SVG.listeners[index][ev][ns][listener] = l
// add listener
node.addEventListener(ev, l, false)
}
// Add event unbinder in the SVG namespace
SVG.off = function(node, event, listener) {
var index = SVG.handlerMap.indexOf(node)
, ev = event && event.split('.')[0]
, ns = event && event.split('.')[1]
if(index == -1) return
if (listener) {
// remove listener reference
if (SVG.listeners[index][ev] && SVG.listeners[index][ev][ns || '*']) {
// remove listener
node.removeEventListener(ev, SVG.listeners[index][ev][ns || '*'][listener], false)
delete SVG.listeners[index][ev][ns || '*'][listener]
}
} else if (ns && ev) {
// remove all listeners for a namespaced event
if (SVG.listeners[index][ev] && SVG.listeners[index][ev][ns]) {
for (listener in SVG.listeners[index][ev][ns])
SVG.off(node, [ev, ns].join('.'), listener)
delete SVG.listeners[index][ev][ns]
}
} else if (ns){
// remove all listeners for a specific namespace
for(event in SVG.listeners[index]){
for(namespace in SVG.listeners[index][event]){
if(ns === namespace){
SVG.off(node, [event, ns].join('.'))
}
}
}
} else if (ev) {
// remove all listeners for the event
if (SVG.listeners[index][ev]) {
for (namespace in SVG.listeners[index][ev])
SVG.off(node, [ev, namespace].join('.'))
delete SVG.listeners[index][ev]
}
} else {
// remove all listeners on a given node
for (event in SVG.listeners[index])
SVG.off(node, event)
delete SVG.listeners[index]
}
}
//
SVG.extend(SVG.Element, {
// Bind given event to listener
on: function(event, listener, binding) {
SVG.on(this.node, event, listener, binding)
return this
}
// Unbind event from listener
, off: function(event, listener) {
SVG.off(this.node, event, listener)
return this
}
// Fire given event
, fire: function(event, data) {
// Dispatch event
if(event instanceof Event){
this.node.dispatchEvent(event)
}else{
this.node.dispatchEvent(new CustomEvent(event, {detail:data}))
}
return this
}
})
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