sheetjs-clone/shim.js
2018-06-01 12:34:26 -04:00

155 lines
7.4 KiB
JavaScript

/*! shim.js (C) 2013-present SheetJS -- http://sheetjs.com */
/* ES3/5 Compatibility shims and other utilities for older browsers. */
// From https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/keys
if(!Object.keys) Object.keys = (function() {
var hasOwnProperty = Object.prototype.hasOwnProperty,
hasDontEnumBug = !({toString: null}).propertyIsEnumerable('toString'),
dontEnums = [
'toString',
'toLocaleString',
'valueOf',
'hasOwnProperty',
'isPrototypeOf',
'propertyIsEnumerable',
'constructor'
],
dontEnumsLength = dontEnums.length;
return function(obj) {
if(typeof obj !== 'object' && typeof obj !== 'function' || obj === null) throw new TypeError('Object.keys called on non-object');
var result = [];
for(var prop in obj) if(hasOwnProperty.call(obj, prop)) result.push(prop);
if(hasDontEnumBug)
for(var i=0; i < dontEnumsLength; ++i)
if(hasOwnProperty.call(obj, dontEnums[i])) result.push(dontEnums[i]);
return result;
};
})();
if(!String.prototype.trim) String.prototype.trim = function() {
var s = this.replace(/^\s+/, '');
for(var i = s.length - 1; i >=0 ; --i) if(!s.charAt(i).match(/^\s/)) return s.slice(0,i+1);
return "";
};
if(!Array.prototype.forEach) Array.prototype.forEach = function(cb) {
var len = (this.length>>>0), self = (arguments[1]||void 0);
for(var i=0; i<len; ++i) if(i in this) self ? cb.call(self, this[i], i, this) : cb(this[i], i, this);
};
if(!Array.prototype.map) Array.prototype.map = function(cb) {
var len = (this.length>>>0), self = (arguments[1]||void 0), A = new Array(len);
for(var i=0; i<len; ++i) if(i in this) A[i] = self ? cb.call(self, this[i], i, this) : cb(this[i], i, this);
return A;
};
if(!Array.prototype.indexOf) Array.prototype.indexOf = function(needle) {
var len = (this.length>>>0), i = ((arguments[1]|0)||0);
for(i<0 && (i+=len)<0 && (i=0); i<len; ++i) if(this[i] === needle) return i;
return -1;
};
if(!Array.prototype.lastIndexOf) Array.prototype.lastIndexOf = function(needle) {
var len = (this.length>>>0), i = len - 1;
for(; i>=0; --i) if(this[i] === needle) return i;
return -1;
};
if(!Array.isArray) Array.isArray = function(obj) { return Object.prototype.toString.call(obj) === "[object Array]"; };
if(!Date.prototype.toISOString) Date.prototype.toISOString = (function() {
function p(n,i) { return ('0000000' + n).slice(-(i||2)); }
return function _toISOString() {
var y = this.getUTCFullYear(), yr = "";
if(y>9999) yr = '+' + p( y, 6);
else if(y<0) yr = '-' + p(-y, 6);
else yr = p( y, 4);
return [
yr, p(this.getUTCMonth()+1), p(this.getUTCDate())
].join('-') + 'T' + [
p(this.getUTCHours()), p(this.getUTCMinutes()), p(this.getUTCSeconds())
].join(':') + '.' + p(this.getUTCMilliseconds(),3) + 'Z';
};
}());
if(typeof ArrayBuffer !== 'undefined' && !ArrayBuffer.prototype.slice) ArrayBuffer.prototype.slice = function(start, end) {
if(start == null) start = 0;
if(start < 0) { start += this.byteLength; if(start < 0) start = 0; }
if(start >= this.byteLength) return new Uint8Array(0);
if(end == null) end = this.byteLength;
if(end < 0) { end += this.byteLength; if(end < 0) end = 0; }
if(end > this.byteLength) end = this.byteLength;
if(start > end) return new Uint8Array(0);
var out = new ArrayBuffer(end - start);
var view = new Uint8Array(out);
var data = new Uint8Array(this, start, end - start)
/* IE10 should have Uint8Array#set */
if(view.set) view.set(data); else while(start <= --end) view[end - start] = data[end];
return out;
};
if(typeof Uint8Array !== 'undefined' && !Uint8Array.prototype.slice) Uint8Array.prototype.slice = function(start, end) {
if(start == null) start = 0;
if(start < 0) { start += this.length; if(start < 0) start = 0; }
if(start >= this.length) return new Uint8Array(0);
if(end == null) end = this.length;
if(end < 0) { end += this.length; if(end < 0) end = 0; }
if(end > this.length) end = this.length;
if(start > end) return new Uint8Array(0);
var out = new Uint8Array(end - start);
while(start <= --end) out[end - start] = this[end];
return out;
};
// VBScript + ActiveX fallback for IE5+
var IE_SaveFile = (function() { try {
if(typeof IE_SaveFile_Impl == "undefined") document.write([
'<script type="text/vbscript" language="vbscript">',
'IE_GetProfileAndPath_Key = "HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\User Shell Folders\\"',
'Function IE_GetProfileAndPath(key): Set wshell = CreateObject("WScript.Shell"): IE_GetProfileAndPath = wshell.RegRead(IE_GetProfileAndPath_Key & key): IE_GetProfileAndPath = wshell.ExpandEnvironmentStrings("%USERPROFILE%") & "!" & IE_GetProfileAndPath: End Function',
'Function IE_SaveFile_Impl(FileName, payload): Dim data, plen, i, bit: data = CStr(payload): plen = Len(data): Set fso = CreateObject("Scripting.FileSystemObject"): fso.CreateTextFile FileName, True: Set f = fso.GetFile(FileName): Set stream = f.OpenAsTextStream(2, 0): For i = 1 To plen Step 3: bit = Mid(data, i, 2): stream.write Chr(CLng("&h" & bit)): Next: stream.Close: IE_SaveFile_Impl = True: End Function',
'|/script>'.replace("|","<")
].join("\r\n"));
if(typeof IE_SaveFile_Impl == "undefined") return void 0;
var IE_GetPath = (function() {
var DDP1 = "";
try { DDP1 = IE_GetProfileAndPath("{374DE290-123F-4565-9164-39C4925E467B}"); } catch(e) { try { DDP1 = IE_GetProfileAndPath("Personal"); } catch(e) { try { DDP1 = IE_GetProfileAndPath("Desktop"); } catch(e) { throw e; }}}
var o = DDP1.split("!");
DDP = o[1].replace("%USERPROFILE%", o[0]);
return function(path) { return DDP + "\\" + path; };
})();
function fix_data(data) {
var out = [];
var T = typeof data == "string";
for(var i = 0; i < data.length; ++i) out.push(("00"+(T ? data.charCodeAt(i) : data[i]).toString(16)).slice(-2));
var o = out.join("|");
return o;
}
return function(data, filename) { return IE_SaveFile_Impl(IE_GetPath(filename), fix_data(data)); };
} catch(e) { return void 0; }})();
var IE_LoadFile = (function() { try {
if(typeof IE_LoadFile_Impl == "undefined") document.write([
'<script type="text/vbscript" language="vbscript">',
'Function IE_LoadFile_Impl(FileName): Dim out(), plen, i, cc: Set fso = CreateObject("Scripting.FileSystemObject"): Set f = fso.GetFile(FileName): Set stream = f.OpenAsTextStream(1, 0): plen = f.Size: ReDim out(plen): For i = 1 To plen Step 1: cc = Hex(Asc(stream.read(1))): If Len(cc) < 2 Then: cc = "0" & cc: End If: out(i) = cc: Next: IE_LoadFile_Impl = Join(out,""): End Function',
'|/script>'.replace("|","<")
].join("\r\n"));
if(typeof IE_LoadFile_Impl == "undefined") return void 0;
function fix_data(data) {
var out = [];
for(var i = 0; i < data.length; i+=2) out.push(String.fromCharCode(parseInt(data.slice(i, i+2), 16)));
var o = out.join("");
return o;
}
return function(filename) { return fix_data(IE_LoadFile_Impl(filename)); };
} catch(e) { return void 0; }})();
// getComputedStyle polyfill from https://gist.github.com/8HNHoFtE/5891086
if(typeof window !== 'undefined' && typeof window.getComputedStyle !== 'function') {
window.getComputedStyle = function(e,t){return this.el=e,this.getPropertyValue=function(t){var n=/(\-([a-z]){1})/g;return t=="float"&&(t="styleFloat"),n.test(t)&&(t=t.replace(n,function(){return arguments[2].toUpperCase()})),e.currentStyle[t]?e.currentStyle[t]:null},this}
}