-
Notifications
You must be signed in to change notification settings - Fork 0
/
numbro-formatter.html
131 lines (123 loc) · 4.11 KB
/
numbro-formatter.html
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
<link rel="import" href="../polymer/polymer.html">
<link rel="import" href="numbro-imports.html">
<!--
A molecule wrapper around Numbro.
Examples:
<numbro value="1234567.89"></numbro>
<numbro currency culture="fr-FR" value="1234567.89" format="0.0a"></numbro>
@demo demo/index.html
-->
<dom-module id="numbro-formatter">
<template>
<style>
:host {
display: block;
box-sizing: border-box;
}
#prefix { @apply(--numbro-prefix); }
#midfix { @apply(--numbro-midfix); }
#suffix { @apply(--numbro-suffix); }
</style>
<span id="prefix"></span>
<span id="midfix"></span>
<span id="suffix"></span>
</template>
<script>
(function() {
var UPDATABLE_BINDINGS = [ 'prefix', 'midfix', 'suffix']
Polymer({
is: 'numbro-formatter',
properties: {
/**
* A boolean attribute allowing to set up the element in currency
* mode. Based on the culture, the element will automatically choose
* a prefix and a suffix to go along with the final rendered value.
*/
currency: {
type: Boolean,
value: false
},
/**
* The culture to be used.
*/
culture: {
type: String,
value: 'en-US'
},
/**
* The format to be used.
*/
format: {
type: String,
value: '0.00'
},
/**
* The value to be formatted.
*/
value: {
type: String,
value: ''
},
/**
* Whenever either one of `culture` or `value` change, this is
* in charge of creating and caching a new formatter object.
*/
formatter: {
type: Object,
computed: '_computeFormatter(culture, value)'
},
/**
* Whenever the `currency` flag changes, this property is in charge
* of picking the correct method to call on the formatter.
*/
method: {
type: String,
computed: '_computeMethod(currency)'
},
/**
* This property stores the formatted string based on all other
* properties: when either one of `culture`, `value`, `currency` or
* `format` changes, the `formatted` property will be updated.
*/
formatted: {
type: String,
computed: '_computeFormatted(formatter, method, format)'
},
},
observers: [ '_render(formatted)' ],
/**
* Whenever either one of `culture` or `value` change, this is
* in charge of creating and caching a new formatter object.
*/
_computeFormatter: function(culture, value) {
return numbro.culture(culture)(value);
},
/**
* Whenever the `currency` flag changes, this property is in charge
* of picking the correct method to call on the formatter.
*/
_computeMethod: function(currency) {
return currency ? 'formatCurrency' : 'format';
},
/**
* This property stores the formatted string based on all other
* properties: when either one of `culture`, `value`, `currency` or
* `format` changes, the `formatted` property will be updated.
*/
_computeFormatted: function(formatter, method, format) {
return formatter[method](format);
},
/**
* Whenever the `formatted` property changes, we want to update our DOM
* to reflect the resulting value. This listened callback does that.
*/
_render: function(formatted) {
// Split the formatted result into 3 groups.
var split = /([^\.,\d]*)([\.,\d]*)(\D*)/i.exec(formatted).splice(1);
for (var i=0; i<UPDATABLE_BINDINGS.length; ++i)
this.$[UPDATABLE_BINDINGS[i]].innerText = split[i];
}
});
})();
</script>
</dom-module>