add scripts

This commit is contained in:
Cody Zhang
2020-10-08 17:31:39 +08:00
parent 9463e1dcbd
commit ff9710dc08
8 changed files with 21044 additions and 235 deletions

411
scripts/excelJS_helper.js Normal file
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/**
* 需要 ExcelJS 套件
* 提供一些 function可以把呼叫 ExcelJS 的方法,把 html 的 table 轉成 excel
*/
// let namespace = window.exhelper;
(function (ns) {
'use strict';
// create a self-reference
var _self = ns;
/**
* 以 0 為起始的行、列座標
* @param {Number} col 行座標
* @param {Number} row 列座標
*/
_self.CellCoordinate = function (col, row) {
this.col = col || 0;
this.row = row || 0;
}
/**
* 每格的資料
* @param {String} addr 位址 (A1, A2...)
* @param {Any} val 值
* @param {Object} style 格式
* @param {Number} type 型別 (預設 3 string)
*/
_self.CellData = function(addr, val, style, type){
this.address = addr || "";
this.value = val || "";
this.style = style || {};
this.type = type || 3;
}
/**
* 合併欄位的資料
* @param {Number} top
* @param {Number} left
* @param {Number} bottom
* @param {Number} right
*/
_self.MergedRange = function(top, left, bottom, right){
this.top = top || 0;
this.left = left || 0;
this.bottom = bottom || 0;
this.right = right || 0;
}
/**
* 傳入 CellCoordinate { col: 0, row: 0 } 回傳 A1
* @param {CellCoordinate} coordinate
* @return {String} 格位標記
*/
_self.parseCelltoTag = function (coordinate) {
if (parseInt(coordinate.col) < 0) {
console.log("傳入參數有誤Coordinate 的 col 要大於 0");
return;
}
return _self.getAlphabetByInt(parseInt(coordinate.col)) + (parseInt(coordinate.row) + 1);
}
/**
* 傳入數字,回傳對應的字母 ( 0=>A, 1=>B...)
* @param {Number} idx 要對應的數字
* @param {Number} alphabetBase 要用幾個字母去對應,預設 26最大 26
*/
_self.getAlphabetByInt = function (idx, alphabetBase) {
if (!alphabetBase)
alphabetBase = 26;
let alphabets = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
// 在 base 內,一個字母就可以處理
if (idx < alphabetBase) {
return alphabets.charAt(idx);
}
let result = "";
let quotient = idx;
while (quotient >= alphabetBase) {
let mod = quotient % alphabetBase;
quotient = Math.floor(idx / alphabetBase);
result = alphabets.charAt(mod) + result;
}
// 最後一碼
result = alphabets.charAt(quotient - 1) + result;
return result;
}
/**
* 傳入字母,回傳對應的數值 ( A=>0, B=>2...)
* @param {String} a 要對應的字串
* @param {Number} alphabetBase 要用幾個字母去對應,預設 26最大 26
*/
_self.getIdxByAlphbet = function (a, alphabetBase) {
if (!alphabetBase)
alphabetBase = 26;
let alphabets = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
// 全部轉大寫
a = a.toUpperCase();
let result = 0;
for (let i = 0; i < a.length; i++) {
// 如果是第二碼以上,就要加 1 再去乘
let modifier = (i == 0) ? 0 : 1;
result += (alphabets.indexOf(a.charAt(a.length - (i + 1))) + modifier) * Math.pow(alphabetBase, i);
}
return result;
}
/**
* 傳入格位代碼,回傳以 0 起始的座標物件
* @param {String} tag 格位代碼 (A1, A2...)
* @return {CellCoordinate} { col: 0, row: 0}
*/
_self.parseCelltoCoordinate = function (tag) {
let re = /(\w+)(\d+)/;
let match = tag.match(re);
return new _self.CellCoordinate(_self.getIdxByAlphbet(match[1]), parseInt(match[2]) - 1);
}
/**
* 儲存 Blob 資料至下載檔案
* @param {String} fileName 檔案名稱(含副檔名)
* @param {object} byte 檔案內容 byte 陣列
*/
_self.saveBlob = function (fileName, byte) {
var blob = new Blob([byte], {
type: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"
});
if (window.navigator && window.navigator.msSaveOrOpenBlob) {
// for IE
window.navigator.msSaveOrOpenBlob(blob, fileName);
} else {
// for other browsers
var url = window.URL.createObjectURL(blob, {
type: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"
});
/*
var a = $("<a style='display: none;'/>");
a.attr("href", url);
a.attr("download", fileName);
$("body").append(a);
a[0].click();
window.URL.revokeObjectURL(url);
a.remove();
*/
var a = document.createElement("a");
a.style.display = "none";
a.setAttribute("href", url);
a.setAttribute("download", fileName);
document.body.appendChild(a);
a.click();
window.URL.revokeObjectURL(url);
a.remove();
}
}
/**
* 將 ExcelJS.Workbook 物件存成 excel 檔案,並開始下載
* @param {String} filename 檔案名稱含副檔名
* @param {object} Workbook 物件
*/
_self.saveXlsx = function (filename, wb) {
wb.xlsx.writeBuffer().then(
function (result) {
_self.saveBlob(filename, result);
},
function (err) {
console.log("error: ", err);
}
);
}
/**
* 傳入 table 物件,回傳 ExcelJS.Workbook 物件
* @param {object} elt table 物件
* @param {object} opt 屬性設定 => { sheet: "sheet 名稱 預設 Sheet1" }
* @return {object} ExcelJS.Workbook 物件
*/
_self.tableToBook = function (elt, opt) {
if (!opt)
opt = {};
// 沒有這個方法 => 可能是 jquery 物件,要轉成原始的 html 物件
if (!elt.getElementsByTagName)
elt = elt.get(0);
var wb = new ExcelJS.Workbook();
wb.creator = "gamapay";
wb.lastModifiedBy = "gamapay";
wb.created = new Date();
wb.modified = new Date();
let sheetName = opt.sheet || "Sheet1";
// Set workbook dates to 1904 date system
wb.properties.date1904 = true;
var ws = wb.addWorksheet(sheetName);
var rows = elt.getElementsByTagName("tr");
var mergedCells = new Array(rows.length);
for (let i = 0; i < rows.length; i++) {
// 取得格位資料
var cols = rows[i].querySelectorAll("th,td");
// 計算要右移幾格 (因為合併)
let shiftCell = 0;
for (let j = 0; j < cols.length; j++) {
let colElem = cols[j];
let colspan = colElem.getAttribute("colspan");
let rowspan = colElem.getAttribute("rowspan");
let colValue = colElem.innerHTML;
// 如果有值,就進行移除所有的 html tag 運算
if (colValue) {
colValue = colValue.replace(/<\/?[^>]+(>|$)/g, "");
}
// 初始化本列的合併格位陣列 (如果是合併列的話,可能已經有初始化了)
if (!mergedCells[i])
mergedCells[i] = [];
// 檢查目前的格位有沒有在合併欄位中,有的話就右移一格
while (mergedCells[i].indexOf(j + shiftCell) >= 0) {
shiftCell++;
}
// 目前的格位 (位移後)
let currCell = new _self.CellCoordinate(j + shiftCell, i);
// 轉成 tag
let currTag = _self.parseCelltoTag(currCell);
// 設定本格的值
ws.getCell(currTag).value = colValue;
// 是否有合併欄位
let hasMerge = false;
// 要合併欄位
let toCell = new _self.CellCoordinate(j + shiftCell, i);
if (colspan && colspan != 1) {
hasMerge = true;
toCell.col += parseInt(colspan) - 1;
}
if (rowspan && rowspan != 1) {
hasMerge = true;
toCell.row += parseInt(rowspan) - 1;
}
if (hasMerge) {
// 把合併的欄位加到陣列中
for (let idr = currCell.row; idr <= toCell.row; idr++) {
// 如果是列之間的合併格位,會遇到還沒有初始化,所以在這要初始化
if (!mergedCells[idr])
mergedCells[idr] = [];
for (let idx = currCell.col; idx <= toCell.col; idx++) {
// 將合併的欄位加到陣列中
mergedCells[idr].push(idx);
}
}
// 將要合併的欄位轉成 tag
let toTag = _self.parseCelltoTag(toCell);
// 進行合併
ws.mergeCells(currTag + ":" + toTag);
}
}
}
return wb;
}
/**
* 在指定位置插入指定行數的空行
* @param {Object} sheet Worksheet object
* @param {Number} pos 要插入的位置
* @param {Number} cnt 要插入幾行
*/
_self.insertRows = function (sheet, pos, cnt){
// 建立要合併的欄位
var merged = [];
// 每個合併的欄位向下一行
for(let cell in sheet._merges){
let model = sheet._merges[cell].model;
let range = new _self.MergedRange(model.top, model.left, model.bottom, model.right);
merged.push(range);
// 清除 merge 資訊
sheet.unMergeCells(cell);
}
// 紀錄所有格位資料
let cells = [];
sheet.eachRow(function(row, rowNumber) {
row.eachCell(function(cell, colNumber){
let model = cell._value.model;
let cellData = new _self.CellData(model.address, model.value, model. style, model.type);
cells.push(cellData);
});
});
// 清空所有資料
sheet._rows = [];
sheet._columns = [];
for(let i = 0; i < cells.length; i++){
let cell = cells[i];
let cellCoordinate = _self.parseCelltoCoordinate(cell.address);
// col 原則上不會變
let newCol = cellCoordinate.col + 1;
let newRow = cellCoordinate.row + 1;
console.log(cell.value, newRow, pos);
// row 依插入幾行而變
if(newRow >= pos){
newRow = newRow + cnt;
}
// 將原本的值寫入
sheet.getRow(newRow).getCell(newCol).value = cell.value;
}
// 重新 merge
for(let i = 0; i < merged.length; i++){
let range = merged[i];
// 如果插入的行在merge行的中間那就不進行merge
if(range.top > pos && range.bottom <= pos)
continue;
// 原本合併的行在插入行之下,下移指定行數
// ,在插入行之上,維持不變
if(range.top >= pos){
range.top += cnt;
range.bottom += cnt;
}
// 進行合併
sheet.mergeCells(range.top, range.left, range.bottom, range.right);
}
}
/**
* 為 worksheet 物件增加表頭
* @param {object} sheet ExcelJS.Worksheet 物件
* @param {String} title 表頭
*/
_self.addTitle = function (sheet, title) {
_self.insertRows(sheet, 1, 1);
// 插入表頭
sheet.mergeCells(1, 1, 1, sheet.columnCount);
let titleCell = sheet.getRow(1).getCell(1);
titleCell.value = title;
titleCell.alignment = { vertical: 'middle', horizontal: 'center' };
titleCell.font = { bold: true };
}
// reasign everything just incase
_self = ns;
})(window.exhelper = window.exhelper || {});