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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 events and listeners stack
SVG.events = {}
SVG.listeners = {}
// Event constructor
SVG.registerEvent = function(event) {
if (!SVG.events[event])
SVG.events[event] = new CustomEvent(event)
}
// Add event binder in the SVG namespace
SVG.on = function(node, event, listener) {
// create listener
var l = listener.bind(node.instance || node)
// ensure reference objects
SVG.listeners[node] = SVG.listeners[node] || {}
SVG.listeners[node][event] = SVG.listeners[node][event] || {}
// reference listener
SVG.listeners[node][event][listener] = l
// add listener
node.addEventListener(event, l, false)
}
// Add event unbinder in the SVG namespace
SVG.off = function(node, event, listener) {
if (listener) {
// remove listener reference
if (SVG.listeners[node] && SVG.listeners[node][event]) {
// remove listener
node.removeEventListener(event, SVG.listeners[node][event][listener], false)
delete SVG.listeners[node][event][listener]
}
} else if (event) {
// remove all listeners for the event
if (SVG.listeners[node][event]) {
for (listener in SVG.listeners[node][event])
SVG.off(node, event, listener)
delete SVG.listeners[node][event]
}
} else {
// remove all listeners on a given node
if (SVG.listeners[node]) {
for (event in SVG.listeners[node])
SVG.off(node, event)
delete SVG.listeners[node]
}
}
}
//
SVG.extend(SVG.Element, {
// Bind given event to listener
on: function(event, listener) {
SVG.on(this.node, event, listener)
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) {
// Add detail data to event
SVG.events[event].detail = data
// Dispatch event
this.node.dispatchEvent(SVG.events[event])
// Remove detail
delete SVG.events[event].detail
return this
}
})
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