1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
|
// 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) {
// create listener, get object-index
var l = listener.bind(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) {
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) {
// Dispatch event
if(event instanceof Event){
this.node.dispatchEvent(event)
}else{
this.node.dispatchEvent(new CustomEvent(event, {detail:data}))
}
return this
}
})
|
