sheetjs/demos/angular/SheetJS-angular.js

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2017-06-14 14:29:20 +00:00
/* xlsx.js (C) 2013-present SheetJS -- http://sheetjs.com */
function SheetJSExportService(uiGridExporterService) {
function exportSheetJS(gridApi, wopts) {
var columns = uiGridExporterService.getColumnHeaders(gridApi.grid, 'all');
var data = uiGridExporterService.getData(gridApi.grid, 'all', 'all');
var fileName = gridApi.grid.options.filename || 'SheetJS';
fileName += wopts.bookType ? "." + wopts.bookType : '.xlsx';
var sheetName = gridApi.grid.options.sheetname || 'Sheet1';
var wb = XLSX.utils.book_new(), ws = uigrid_to_sheet(data, columns);
XLSX.utils.book_append_sheet(wb, ws, sheetName);
var wbout = XLSX.write(wb, wopts);
saveAs(new Blob([s2ab(wbout)], { type: 'application/octet-stream' }), fileName);
}
var service = {};
service.exportXLSB = function exportXLSB(gridApi) { return exportSheetJS(gridApi, { bookType: 'xlsb', bookSST: true, type: 'binary' }); };
service.exportXLSX = function exportXLSX(gridApi) { return exportSheetJS(gridApi, { bookType: 'xlsx', bookSST: true, type: 'binary' }); }
return service;
/* utilities */
function uigrid_to_sheet(data, columns) {
var o = [], oo = [], i = 0, j = 0;
/* column headers */
for(j = 0; j < columns.length; ++j) oo.push(get_value(columns[j]));
o.push(oo);
/* table data */
for(i = 0; i < data.length; ++i) {
oo = [];
for(j = 0; j < data[i].length; ++j) oo.push(get_value(data[i][j]));
o.push(oo);
}
/* aoa_to_sheet converts an array of arrays into a worksheet object */
return XLSX.utils.aoa_to_sheet(o);
}
function get_value(col) {
if(!col) return col;
if(col.value) return col.value;
if(col.displayName) return col.displayName;
if(col.name) return col.name;
return null;
}
function s2ab(s) {
if(typeof ArrayBuffer !== 'undefined') {
var buf = new ArrayBuffer(s.length);
var view = new Uint8Array(buf);
for (var i=0; i!=s.length; ++i) view[i] = s.charCodeAt(i) & 0xFF;
return buf;
} else {
var buf = new Array(s.length);
for (var i=0; i!=s.length; ++i) buf[i] = s.charCodeAt(i) & 0xFF;
return buf;
}
}
}
var SheetJSImportDirective = function() {
return {
scope: { opts: '=' },
link: function ($scope, $elm, $attrs) {
$elm.on('change', function (changeEvent) {
var reader = new FileReader();
reader.onload = function (e) {
/* read workbook */
var bstr = e.target.result;
var wb = XLSX.read(bstr, {type:'binary'});
/* grab first sheet */
var wsname = wb.SheetNames[0];
var ws = wb.Sheets[wsname];
/* grab first row and generate column headers */
var aoa = XLSX.utils.sheet_to_json(ws, {header:1, raw:false});
var cols = [];
for(var i = 0; i < aoa[0].length; ++i) cols[i] = { field: aoa[0][i] };
/* generate rest of the data */
var data = [];
for(var r = 1; r < aoa.length; ++r) {
data[r-1] = {};
for(i = 0; i < aoa[r].length; ++i) {
if(aoa[r][i] == null) continue;
data[r-1][aoa[0][i]] = aoa[r][i]
}
}
/* update scope */
$scope.$apply(function() {
$scope.opts.columnDefs = cols;
$scope.opts.data = data;
});
};
reader.readAsBinaryString(changeEvent.target.files[0]);
});
}
}
}