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
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
|
// The main wrapping element
var SVG = this.SVG = function(element) {
if (SVG.supported) {
element = new SVG.Doc(element)
if(!SVG.parser.draw)
SVG.prepare()
return element
}
}
// Default namespaces
SVG.ns = 'http://www.w3.org/2000/svg'
SVG.xmlns = 'http://www.w3.org/2000/xmlns/'
SVG.xlink = 'http://www.w3.org/1999/xlink'
SVG.svgjs = 'http://svgjs.com/svgjs'
// Svg support test
SVG.supported = (function() {
return !! document.createElementNS &&
!! document.createElementNS(SVG.ns,'svg').createSVGRect
})()
// Don't bother to continue if SVG is not supported
if (!SVG.supported) return false
// Element id sequence
SVG.did = 1000
// Get next named element id
SVG.eid = function(name) {
return 'Svgjs' + capitalize(name) + (SVG.did++)
}
// Method for element creation
SVG.create = function(name) {
// create element
var element = document.createElementNS(this.ns, name)
// apply unique id
element.setAttribute('id', this.eid(name))
return element
}
// Method for extending objects
SVG.extend = function() {
var modules, methods, key, i
// Get list of modules
modules = [].slice.call(arguments)
// Get object with extensions
methods = modules.pop()
for (i = modules.length - 1; i >= 0; i--)
if (modules[i])
for (key in methods)
modules[i].prototype[key] = methods[key]
// Make sure SVG.Set inherits any newly added methods
if (SVG.Set && SVG.Set.inherit)
SVG.Set.inherit()
}
// Invent new element
SVG.invent = function(config) {
// Create element initializer
var initializer = typeof config.create == 'function' ?
config.create :
function() {
this.constructor.call(this, SVG.create(config.create))
}
// Inherit prototype
if (config.inherit)
initializer.prototype = new config.inherit
// Extend with methods
if (config.extend)
SVG.extend(initializer, config.extend)
// Attach construct method to parent
if (config.construct)
SVG.extend(config.parent || SVG.Container, config.construct)
return initializer
}
// Adopt existing svg elements
SVG.adopt = function(node) {
// check for presence of node
if (!node) return null
// make sure a node isn't already adopted
if (node.instance) return node.instance
// initialize variables
var element
// adopt with element-specific settings
if (node.nodeName == 'svg')
element = node.parentNode instanceof window.SVGElement ? new SVG.Nested : new SVG.Doc
else if (node.nodeName == 'linearGradient')
element = new SVG.Gradient('linear')
else if (node.nodeName == 'radialGradient')
element = new SVG.Gradient('radial')
else if (SVG[capitalize(node.nodeName)])
element = new SVG[capitalize(node.nodeName)]
else
element = new SVG.Element(node)
// ensure references
element.type = node.nodeName
element.node = node
node.instance = element
// SVG.Class specific preparations
if (element instanceof SVG.Doc)
element.namespace().defs()
// pull svgjs data from the dom (getAttributeNS doesn't work in html5)
element.setData(JSON.parse(node.getAttribute('svgjs:data')) || {})
return element
}
// Initialize parsing element
SVG.prepare = function() {
// Select document body and create invisible svg element
var body = document.getElementsByTagName('body')[0]
, draw = (body ? new SVG.Doc(body) : SVG.adopt(document.documentElement).nested()).size(2, 0)
// Create parser object
SVG.parser = {
body: body || document.documentElement
, draw: draw.style('opacity:0;position:absolute;left:-100%;top:-100%;overflow:hidden').node
, poly: draw.polyline().node
, path: draw.path().node
, native: SVG.create('svg')
}
}
SVG.parser = {
native: SVG.create('svg')
}
document.addEventListener('DOMContentLoaded', function() {
if(!SVG.parser.draw)
SVG.prepare()
}, false)
|
