forked from jmaister/excellentexport
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathexcellentexport.js
172 lines (151 loc) · 5.58 KB
/
excellentexport.js
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
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
/**
* ExcellentExport.
* A client side Javascript export to Excel.
*
* @author: Jordi Burgos ([email protected])
*
* Based on:
* https://gist.github.com/insin/1031969
* http://jsfiddle.net/insin/cmewv/
*
* CSV: http://en.wikipedia.org/wiki/Comma-separated_values
*/
/*
* Base64 encoder/decoder from: http://jsperf.com/base64-optimized
*/
/*jslint browser: true, bitwise: true, plusplus: true, vars: true, white: true */
var characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
var fromCharCode = String.fromCharCode;
var INVALID_CHARACTER_ERR = (function () {
"use strict";
// fabricate a suitable error object
try {
document.createElement('$');
} catch (error) {
return error;
}
}());
// encoder
if (!window.btoa) {
window.btoa = function (string) {
"use strict";
var a, b, b1, b2, b3, b4, c, i = 0, len = string.length, max = Math.max, result = '';
while (i < len) {
a = string.charCodeAt(i++) || 0;
b = string.charCodeAt(i++) || 0;
c = string.charCodeAt(i++) || 0;
if (max(a, b, c) > 0xFF) {
throw INVALID_CHARACTER_ERR;
}
b1 = (a >> 2) & 0x3F;
b2 = ((a & 0x3) << 4) | ((b >> 4) & 0xF);
b3 = ((b & 0xF) << 2) | ((c >> 6) & 0x3);
b4 = c & 0x3F;
if (!b) {
b3 = b4 = 64;
} else if (!c) {
b4 = 64;
}
result += characters.charAt(b1) + characters.charAt(b2) + characters.charAt(b3) + characters.charAt(b4);
}
return result;
};
}
// decoder
if (!window.atob) {
window.atob = function(string) {
"use strict";
string = string.replace(new RegExp("=+$"), '');
var a, b, b1, b2, b3, b4, c, i = 0, len = string.length, chars = [];
if (len % 4 === 1) {
throw INVALID_CHARACTER_ERR;
}
while (i < len) {
b1 = characters.indexOf(string.charAt(i++));
b2 = characters.indexOf(string.charAt(i++));
b3 = characters.indexOf(string.charAt(i++));
b4 = characters.indexOf(string.charAt(i++));
a = ((b1 & 0x3F) << 2) | ((b2 >> 4) & 0x3);
b = ((b2 & 0xF) << 4) | ((b3 >> 2) & 0xF);
c = ((b3 & 0x3) << 6) | (b4 & 0x3F);
chars.push(fromCharCode(a));
b && chars.push(fromCharCode(b));
c && chars.push(fromCharCode(c));
}
return chars.join('');
};
}
ExcellentExport = (function() {
"use strict";
var version = "1.3";
var csvSeparator = ',';
var uri = {excel: 'data:application/vnd.ms-excel;base64,', csv: 'data:application/csv;base64,'};
var template = {excel: '<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><!--[if gte mso 9]><xml><x:ExcelWorkbook><x:ExcelWorksheets><x:ExcelWorksheet><x:Name>{worksheet}</x:Name><x:WorksheetOptions><x:DisplayGridlines/></x:WorksheetOptions></x:ExcelWorksheet></x:ExcelWorksheets></x:ExcelWorkbook></xml><![endif]--></head><body><table>{table}</table></body></html>'};
var csvDelimiter = ",";
var csvNewLine = "\r\n";
var base64 = function(s) {
return window.btoa(window.unescape(encodeURIComponent(s)));
};
var format = function(s, c) {
return s.replace(new RegExp("{(\\w+)}", "g"), function(m, p) {
return c[p];
});
};
var get = function(element) {
if (!element.nodeType) {
return document.getElementById(element);
}
return element;
};
var fixCSVField = function(value) {
var fixedValue = value;
var addQuotes = (value.indexOf(csvDelimiter) !== -1) || (value.indexOf('\r') !== -1) || (value.indexOf('\n') !== -1);
var replaceDoubleQuotes = (value.indexOf('"') !== -1);
if (replaceDoubleQuotes) {
fixedValue = fixedValue.replace(/"/g, '""');
}
if (addQuotes || replaceDoubleQuotes) {
fixedValue = '"' + fixedValue + '"';
}
return fixedValue;
};
var tableToCSV = function(table) {
var data = "";
var i, j, row, col;
for (i = 0; i < table.rows.length; i++) {
row = table.rows[i];
for (j = 0; j < row.cells.length; j++) {
col = row.cells[j];
data = data + (j ? csvDelimiter : '') + fixCSVField(col.textContent.trim());
}
data = data + csvNewLine;
}
return data;
};
var ee = {
/** @expose */
excel: function(anchor, table, name) {
table = get(table);
var ctx = {worksheet: name || 'Worksheet', table: table.innerHTML};
var hrefvalue = uri.excel + base64(format(template.excel, ctx));
anchor.href = hrefvalue;
// Return true to allow the link to work
return true;
},
/** @expose */
csv: function(anchor, table, delimiter, newLine) {
if (delimiter !== undefined && delimiter) {
csvDelimiter = delimiter;
}
if (newLine !== undefined && newLine) {
csvNewLine = newLine;
}
table = get(table);
var csvData = tableToCSV(table);
var hrefvalue = uri.csv + base64(csvData);
anchor.href = hrefvalue;
return true;
}
};
return ee;
}());