feat(ExcelExport): migrate to Excel-Builder-Vanilla (ESM)

docs/grid-functionalities/Export-to-Excel.md

@@ -19,6 +19,16 @@ You can Export to Excel, it will create an Excel file with the `.xlsx` default e
 ### Demo
 [Demo Page](https://ghiscoding.github.io/slickgrid-universal/#/example02) / [Demo Component](https://github.com/ghiscoding/slickgrid-universal/blob/master/examples/webpack-demo-vanilla-bundle/src/examples/example02.ts)
 
+### CSP (Content Security Policy)
+Since we use the library `Excel-Builder-Vanilla`, which itself uses `fflate` as a dependency, that library uses Web Worker when it can which might throw a CSP error.
+
+The easiest way to fix this problem is to modify your CSP header by adding the rule `worker-src 'self' blob:;`
+
+```html
+<meta http-equiv="Content-Security-Policy"
+  content="default-src 'self'; ...other rules...  worker-src 'self' blob:;" />
+```
+
 ### Grid Menu (hamburger menu)
 The Grid Menu already has the "Export to Excel" enabled by default, so you will see it automatically in your Grid Menu. You still have the options to show/hide from the Grid Menu if you wish
 - `hideExportExcelCommand` false by default, so it's optional
@@ -136,7 +146,7 @@ this.gridOptions = {
 ```
 
 ### Styling the Header Titles
-By default the header titles (first row) will be styled as Bold text, however you can choose to style them differently with custom styles as shown below. To find out what styling you can use, you can take a look [Web Archive - Excel Builder](http://web.archive.org/web/20160907052007/http://excelbuilderjs.com/cookbook/fontsAndColors.html) website. The code shown below is used in [Aurelia-Slickgrid - Example 24](https://ghiscoding.github.io/aurelia-slickgrid/#/slickgrid/example24) if you wish to see the result.
+By default the header titles (first row) will be styled as Bold text, however you can choose to style them differently with custom styles as shown below. To find out what styling you can use, you can take a look at Excel Builder-Vanilla [Documentation](https://ghiscoding.gitbook.io/excel-builder-vanilla/cookbook/fonts-and-colors) website. The code shown below is used in [Aurelia-Slickgrid - Example 24](https://ghiscoding.github.io/aurelia-slickgrid/#/slickgrid/example24) if you wish to see the result.
 
 ```ts
 this.gridOptions = {
@@ -150,7 +160,7 @@ this.gridOptions = {
 ```
 
 ### Provide a Custom Header Title
-You can optionally add a custom header title, you can see the UI Sample below, (that will be shown on first row of the Excel file) through the `customExcelHeader` callback method. We use the library `Excel-Builder` to create the export, however note that this library is no longer supported (but still the best) and the documentation site no longer exist but you can find all info on [Web Archive - Excel Builder](http://web.archive.org/web/20160907052007/http://excelbuilderjs.com/cookbook/fontsAndColors.html)
+You can optionally add a custom header title, you can see the UI Sample below, (that will be shown on the first row of the Excel file) through the `customExcelHeader` callback method. We use the library `Excel-Builder-Vanilla` to create the export. Visit their [Documentation](https://ghiscoding.gitbook.io/excel-builder-vanilla/) website for more info.
 
 The example below shows a title which uses a merged cell from "B1" to "D1" with a red bold color (pay attention to the color code, you need to add an extra "FF" in front of an html color code).
 #### ViewModel
@@ -163,8 +173,8 @@ export class MyExample {
       externalResources: [new ExcelExportService()],
       excelExportOptions: {
         // optionally pass a custom header to the Excel Sheet
-        // a lot of the info can be found on Web Archive of Excel-Builder
-        // http://web.archive.org/web/20160907052007/http://excelbuilderjs.com/cookbook/fontsAndColors.html
+        // a lot of the info can be found on Excel-Builder-Vanilla
+        // https://ghiscoding.gitbook.io/excel-builder-vanilla/cookbook/fonts-and-colors
         customExcelHeader: (workbook, sheet) => {
           const customTitle = this.translate.currentLang === 'fr' ? 'Titre qui est suffisament long pour être coupé' : 'My header that is long enough to wrap';
           const stylesheet = workbook.getStyleSheet();

docs/migrations/migration-to-4.x.md

@@ -17,6 +17,8 @@ With this new major version release, we can now say that the journey to moderniz
   - TypeScript builds are now targeting ES2021 (bumped from ES2018)
   - more CSP (Content Security Policy) safe
   - you can create custom Formatter with native HTML element (to be more CSP safe), HTML strings are still accepted
+  - migrate to [Excel-Builder-Vanilla](https://github.com/ghiscoding/excel-builder-vanilla) (since >=4.4.0)
+    - for CSP safe, you also need to add `worker-src 'self' blob:;`
 
 > **Note** for the full internal list of code changes applied in this release, you can take a look at the [Discussion - Roadmap to 4.0](https://github.com/ghiscoding/slickgrid-universal/discussions/1108)
 
@@ -124,6 +126,27 @@ Some of the DomUtils Service function were renamed, if you use any of them then
 - `findFirstElementAttribute` renamed to `findFirstAttribute`
 - `htmlEncodedStringWithPadding` renamed to `htmlEncodeWithPadding`
 
+### Excel Export
+_requires version >=4.4.0_
+
+Migrate to a new [Excel-Builder-Vanilla](https://github.com/ghiscoding/excel-builder-vanilla) which is a fork of the `excel-builder.js` library. The new fork is all about modernizing Excel-Builder, it drops `Q`, `Lodash` and also replace `JSZip` to `fflate`.
+
+By migrating from `JSZip` to `fflate`, the users should remove any `JSZip` references (like `tsconfig.json`)
+
+```diff
+{
+  "compilerOptions": {
+-    "paths": {
+-      "jszip": [
+-        "node_modules/jszip/dist/jszip.min.js"
+-      ]
+-    }
+  }
+}
+```
+
+Also note that `fflate` could use Web Worker for performance reasons and by doing this you might have new CSP errors thrown. You simply need to add a CSP rule to avoid the error `worker-src 'self' blob:;`
+
 ## Formatters / CSP (Content Security Policy) Compliance
 ### Formatters Cleanup & Removals
 I decided to remove a bunch of Formatters (like `Formatters.bold`, `Formatters.uppercase`, ...) because they could and should be using the column `cssClass` option. Basically, I did not myself use the best practice available when creating soo many Formatters and I did not realized that we could simply use `cssClass` which is a much more efficient way and so I'm correcting this inadvertence in this new release. With that in mind, I decided to do a big cleanup in the list of Formatters to make the project a little more lightweight with less code to support and replace some of them with more generic alternatives (see below).

examples/vite-demo-vanilla-bundle/index.html

@@ -11,6 +11,7 @@
       script-src 'self' 'unsafe-inline';
       script-src-elem 'self' gd.geobytes.com/AutoCompleteCity;
       style-src 'self' 'unsafe-inline';
+      worker-src 'self' blob:;
     ">
   </head>
   <body>

examples/vite-demo-vanilla-bundle/src/app.ts

@@ -1,7 +1,7 @@
 import { AppRouting } from './app-routing';
 import { Renderer } from './renderer';
 import { ElementEventListener, RouterConfig } from './interfaces';
-const pageLayoutGlobs = import.meta.glob('./examples/**/*.html', { as: 'raw', eager: true });
+const pageLayoutGlobs = import.meta.glob('./examples/**/*.html', { query: '?raw', eager: true, import: 'default' });
 
 export class App {
   private _boundedEventWithListeners: ElementEventListener[] = [];
@@ -110,7 +110,7 @@ export class App {
         }
 
         // then load the new View
-        const htmlModule = pageLayoutGlobs[mapRoute.view];
+        const htmlModule = pageLayoutGlobs[mapRoute.view] as string;
 
         if (htmlModule) {
           this.renderer.loadView(htmlModule);

examples/vite-demo-vanilla-bundle/src/examples/example02.ts

@@ -176,7 +176,8 @@ export default class Example02 {
           // collectionAsync: new Promise<any>(resolve => setTimeout(() => {
           //   resolve([{ value: '', label: '' }, { value: true, label: 'True' }, { value: false, label: 'False' }]);
           // }, 250)),
-        }
+        },
+        excelExportOptions: { width: 11 }
       }
     ];
 
@@ -198,7 +199,25 @@ export default class Example02 {
         columnHeaderStyle: {
           font: { color: 'FFFFFFFF' },
           fill: { type: 'pattern', patternType: 'solid', fgColor: 'FF4a6c91' }
-        }
+        },
+
+        // optionally pass a custom header to the Excel Sheet
+        // a lot of the info can be found on Web Archive of Excel-Builder
+        // https://ghiscoding.gitbook.io/excel-builder-vanilla/cookbook/fonts-and-colors
+        customExcelHeader: (workbook, sheet) => {
+          const formatterId = workbook.getStyleSheet().createFormat({
+            // every color is prefixed with FF, then regular HTML color
+            font: { size: 18, fontName: 'Calibri', bold: true, color: 'FFFFFFFF' },
+            alignment: { wrapText: true, horizontal: 'center' },
+            fill: { type: 'pattern', patternType: 'solid', fgColor: 'FF203764' },
+          });
+          sheet.setRowInstructions(0, { height: 50 }); // change height of row 0
+
+          // excel cells start with A1 which is upper left corner
+          const customTitle = 'Grouping and Aggregator - My header is too long enough, so it will wrap';
+          sheet.mergeCells('A1', 'H1');
+          sheet.data.push([{ value: customTitle, metadata: { style: formatterId.id } }]);
+        },
       },
       textExportOptions: { filename: 'my-export', sanitizeDataExport: true },
       externalResources: [this.excelExportService, new TextExportService()],

packages/common/package.json

@@ -80,6 +80,7 @@
     "autocompleter": "^9.1.2",
     "dequal": "^2.0.3",
     "dompurify": "^3.0.8",
+    "excel-builder-vanilla": "3.0.1",
     "flatpickr": "^4.6.13",
     "moment-mini": "^2.29.4",
     "multiple-select-vanilla": "^1.2.5",

packages/common/src/interfaces/columnExcelExportOption.interface.ts

@@ -1,5 +1,6 @@
+import type { ExcelColumnMetadata, ExcelStyleInstruction } from 'excel-builder-vanilla';
+
 import type { Column } from './column.interface';
-import type { ExcelCellFormat } from './excelCellFormat.interface';
 import type { GridOption } from './gridOption.interface';
 
 /** Excel custom export options (formatting & width) that can be applied to a column */
@@ -11,7 +12,7 @@ export interface ColumnExcelExportOption {
    * Option to provide custom Excel styling
    * NOTE: this option will completely override any detected cell styling
    */
-  style?: ExcelCustomStyling;
+  style?: ExcelStyleInstruction;
 
   /** Excel column width */
   width?: number;
@@ -25,74 +26,11 @@ export interface GroupTotalExportOption {
    * Option to provide custom Excel styling
    * NOTE: this option will completely override any detected cell styling
    */
-  style?: ExcelCustomStyling;
+  style?: ExcelStyleInstruction;
 
   /** Cell data value parser callback function */
   valueParserCallback?: GetGroupTotalValueCallback;
 }
 
-export type GetDataValueCallback = (data: Date | string | number, columnDef: Column, excelFormatterId: number | undefined, excelStylesheet: unknown, gridOptions: GridOption) => Date | string | number | ExcelCellFormat;
+export type GetDataValueCallback = (data: Date | string | number, columnDef: Column, excelFormatterId: number | undefined, excelStylesheet: unknown, gridOptions: GridOption) => Date | string | number | ExcelColumnMetadata;
 export type GetGroupTotalValueCallback = (totals: any, columnDef: Column, groupType: string, excelStylesheet: unknown) => Date | string | number;
-
-/**
- * Excel Color in ARGB format, for color aren't transparent just use "FF" as prefix.
- * For example if the color you want to add is a blue with HTML color "#0000FF", then the excel color we need to add is "FF0000FF"
- * Online tool: https://www.myfixguide.com/color-converter/
- */
-export type ExcelColorStyle = string | { theme: number; };
-export interface ExcelAlignmentStyle {
-  horizontal?: 'center' | 'fill' | 'general' | 'justify' | 'left' | 'right';
-  justifyLastLine?: boolean;
-  readingOrder?: string;
-  relativeIndent?: boolean;
-  shrinkToFit?: boolean;
-  textRotation?: string | number;
-  vertical?: 'bottom' | 'distributed' | 'center' | 'justify' | 'top';
-  wrapText?: boolean;
-}
-export type ExcelBorderLine = 'continuous' | 'dash' | 'dashDot' | 'dashDotDot' | 'dotted' | 'double' | 'lineStyleNone' | 'medium' | 'slantDashDot' | 'thin' | 'thick';
-export interface ExcelBorderStyle {
-  bottom?: { color?: ExcelColorStyle; style?: ExcelBorderLine; };
-  top?: { color?: ExcelColorStyle; style?: ExcelBorderLine; };
-  left?: { color?: ExcelColorStyle; style?: ExcelBorderLine; };
-  right?: { color?: ExcelColorStyle; style?: ExcelBorderLine; };
-  diagonal?: any;
-  outline?: boolean;
-  diagonalUp?: boolean;
-  diagonalDown?: boolean;
-}
-export interface ExcelFillStyle {
-  type?: 'gradient' | 'pattern';
-  patternType?: string;
-  degree?: number;
-  fgColor?: ExcelColorStyle;
-  start?: ExcelColorStyle;
-  end?: { pureAt?: number; color?: ExcelColorStyle; };
-}
-export interface ExcelFontStyle {
-  bold?: boolean;
-  color?: ExcelColorStyle;
-  fontName?: string;
-  italic?: boolean;
-  outline?: boolean;
-  size?: number;
-  strike?: boolean;
-  subscript?: boolean;
-  superscript?: boolean;
-  underline?: 'single' | 'double' | 'singleAccounting' | 'doubleAccounting';
-}
-
-/** Excel custom formatting that will be applied to a column */
-export interface ExcelCustomStyling {
-  alignment?: ExcelAlignmentStyle;
-  border?: ExcelBorderStyle;
-  fill?: ExcelFillStyle;
-  font?: ExcelFontStyle;
-  format?: string;
-  protection?: {
-    locked?: boolean;
-    hidden?: boolean;
-  };
-  /** style id */
-  style?: number;
-}

packages/common/src/interfaces/excelExportOption.interface.ts

@@ -1,6 +1,4 @@
-import type { ExcelCustomStyling } from './columnExcelExportOption.interface';
-import type { ExcelWorksheet } from './excelWorksheet.interface';
-import type { ExcelWorkbook } from './excelWorkbook.interface';
+import type { ExcelStyleInstruction, Worksheet, Workbook } from 'excel-builder-vanilla';
 import type { FileType } from '../enums/fileType.enum';
 
 export interface ExcelExportOption {
@@ -11,7 +9,7 @@ export interface ExcelExportOption {
   autoDetectCellFormat?: boolean;
 
   /** When defined, this will override header titles styling, when undefined the default will be a bold style */
-  columnHeaderStyle?: ExcelCustomStyling;
+  columnHeaderStyle?: ExcelStyleInstruction;
 
   /** If set then this will be used as column width for all columns */
   customColumnWidth?: number;
@@ -52,5 +50,5 @@ export interface ExcelExportOption {
   sheetName?: string;
 
   /** Add a Custom Excel Header on first row of the Excel Sheet */
-  customExcelHeader?: (workbook: ExcelWorkbook, sheet: ExcelWorksheet) => void;
+  customExcelHeader?: (workbook: Workbook, sheet: Worksheet) => void;
 }

packages/common/src/interfaces/index.ts

@@ -55,13 +55,8 @@ export * from './editorValidator.interface';
 export * from './editUndoRedoBuffer.interface';
 export * from './elementPosition.interface';
 export * from './emptyWarning.interface';
-export * from './excelCellFormat.interface';
 export * from './excelCopyBufferOption.interface';
 export * from './excelExportOption.interface';
-export * from './excelMetadata.interface';
-export * from './excelStylesheet.interface';
-export * from './excelWorkbook.interface';
-export * from './excelWorksheet.interface';
 export * from './extension.interface';
 export * from './extensionModel.interface';
 export * from './externalCopyClipCommand.interface';