Throw unused xslsx dependency out

package.json

@@ -72,8 +72,7 @@
     "vue-router": "^3.5.1",
     "vue-splitpane": "1.0.2",
     "vuedraggable": "^2.16.0",
-    "vuex": "3.0.1",
-    "xlsx": "^0.11.16"
+    "vuex": "3.0.1"
   },
   "devDependencies": {
     "@babel/core": "^7.3.4",

src/vendor/Export2Excel.js

@@ -1,206 +0,0 @@
-/* eslint-disable */
-require('script-loader!file-saver');
-import XLSX from 'xlsx'
-
-function generateArray(table) {
-  var out = [];
-  var rows = table.querySelectorAll('tr');
-  var ranges = [];
-  for (var R = 0; R < rows.length; ++R) {
-    var outRow = [];
-    var row = rows[R];
-    var columns = row.querySelectorAll('td');
-    for (var C = 0; C < columns.length; ++C) {
-      var cell = columns[C];
-      var colspan = cell.getAttribute('colspan');
-      var rowspan = cell.getAttribute('rowspan');
-      var cellValue = cell.innerText;
-      if (cellValue !== "" && cellValue == +cellValue) cellValue = +cellValue;
-
-      //Skip ranges
-      ranges.forEach(function (range) {
-        if (R >= range.s.r && R <= range.e.r && outRow.length >= range.s.c && outRow.length <= range.e.c) {
-          for (var i = 0; i <= range.e.c - range.s.c; ++i) outRow.push(null);
-        }
-      });
-
-      //Handle Row Span
-      if (rowspan || colspan) {
-        rowspan = rowspan || 1;
-        colspan = colspan || 1;
-        ranges.push({
-          s: {
-            r: R,
-            c: outRow.length
-          },
-          e: {
-            r: R + rowspan - 1,
-            c: outRow.length + colspan - 1
-          }
-        });
-      };
-
-      //Handle Value
-      outRow.push(cellValue !== "" ? cellValue : null);
-
-      //Handle Colspan
-      if (colspan)
-        for (var k = 0; k < colspan - 1; ++k) outRow.push(null);
-    }
-    out.push(outRow);
-  }
-  return [out, ranges];
-};
-
-function datenum(v, date1904) {
-  if (date1904) v += 1462;
-  var epoch = Date.parse(v);
-  return (epoch - new Date(Date.UTC(1899, 11, 30))) / (24 * 60 * 60 * 1000);
-}
-
-function sheet_from_array_of_arrays(data, opts) {
-  var ws = {};
-  var range = {
-    s: {
-      c: 10000000,
-      r: 10000000
-    },
-    e: {
-      c: 0,
-      r: 0
-    }
-  };
-  for (var R = 0; R != data.length; ++R) {
-    for (var C = 0; C != data[R].length; ++C) {
-      if (range.s.r > R) range.s.r = R;
-      if (range.s.c > C) range.s.c = C;
-      if (range.e.r < R) range.e.r = R;
-      if (range.e.c < C) range.e.c = C;
-      var cell = {
-        v: data[R][C]
-      };
-      if (cell.v == null) continue;
-      var cell_ref = XLSX.utils.encode_cell({
-        c: C,
-        r: R
-      });
-
-      if (typeof cell.v === 'number') cell.t = 'n';
-      else if (typeof cell.v === 'boolean') cell.t = 'b';
-      else if (cell.v instanceof Date) {
-        cell.t = 'n';
-        cell.z = XLSX.SSF._table[14];
-        cell.v = datenum(cell.v);
-      } else cell.t = 's';
-
-      ws[cell_ref] = cell;
-    }
-  }
-  if (range.s.c < 10000000) ws['!ref'] = XLSX.utils.encode_range(range);
-  return ws;
-}
-
-function Workbook() {
-  if (!(this instanceof Workbook)) return new Workbook();
-  this.SheetNames = [];
-  this.Sheets = {};
-}
-
-function s2ab(s) {
-  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;
-}
-
-export function export_table_to_excel(id) {
-  var theTable = document.getElementById(id);
-  var oo = generateArray(theTable);
-  var ranges = oo[1];
-
-  /* original data */
-  var data = oo[0];
-  var ws_name = "SheetJS";
-
-  var wb = new Workbook(),
-    ws = sheet_from_array_of_arrays(data);
-
-  /* add ranges to worksheet */
-  // ws['!cols'] = ['apple', 'banan'];
-  ws['!merges'] = ranges;
-
-  /* add worksheet to workbook */
-  wb.SheetNames.push(ws_name);
-  wb.Sheets[ws_name] = ws;
-
-  var wbout = XLSX.write(wb, {
-    bookType: 'xlsx',
-    bookSST: false,
-    type: 'binary'
-  });
-
-  saveAs(new Blob([s2ab(wbout)], {
-    type: "application/octet-stream"
-  }), "test.xlsx")
-}
-
-export function export_json_to_excel({
-  header,
-  data,
-  filename,
-  autoWidth = true,
-  bookType=  'xlsx'
-} = {}) {
-  /* original data */
-  filename = filename || 'excel-list'
-  data = [...data]
-  data.unshift(header);
-  var ws_name = "SheetJS";
-  var wb = new Workbook(),
-    ws = sheet_from_array_of_arrays(data);
-
-  if (autoWidth) {
-    /*设置worksheet每列的最大宽度*/
-    const colWidth = data.map(row => row.map(val => {
-      /*先判断是否为null/undefined*/
-      if (val == null) {
-        return {
-          'wch': 10
-        };
-      }
-      /*再判断是否为中文*/
-      else if (val.toString().charCodeAt(0) > 255) {
-        return {
-          'wch': val.toString().length * 2
-        };
-      } else {
-        return {
-          'wch': val.toString().length
-        };
-      }
-    }))
-    /*以第一行为初始值*/
-    let result = colWidth[0];
-    for (let i = 1; i < colWidth.length; i++) {
-      for (let j = 0; j < colWidth[i].length; j++) {
-        if (result[j]['wch'] < colWidth[i][j]['wch']) {
-          result[j]['wch'] = colWidth[i][j]['wch'];
-        }
-      }
-    }
-    ws['!cols'] = result;
-  }
-
-  /* add worksheet to workbook */
-  wb.SheetNames.push(ws_name);
-  wb.Sheets[ws_name] = ws;
-
-  var wbout = XLSX.write(wb, {
-    bookType: bookType,
-    bookSST: false,
-    type: 'binary'
-  });
-  saveAs(new Blob([s2ab(wbout)], {
-    type: "application/octet-stream"
-  }), `${filename}.${bookType}`);
-}