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@ -33,46 +33,6 @@ The "Complete Example" creates an app that looks like the screenshots below:
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Electron presents a `fs` module. The `require('xlsx')` call loads the CommonJS
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module, so `XLSX.readFile` and `XLSX.writeFile` work in the renderer thread.
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### Writing Files
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[`XLSX.writeFile`](/docs/api/write-options) writes workbooks to the file system.
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`showSaveDialog` shows a Save As dialog and returns the selected file name:
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```js
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/* from the renderer thread */
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const electron = require('@electron/remote');
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/* this function will show the save dialog and try to write the workbook */
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async function exportFile(workbook) {
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/* show Save As dialog */
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const result = await electron.dialog.showSaveDialog({
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title: 'Save file as',
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filters: [{
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name: "Spreadsheets",
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extensions: ["xlsx", "xls", "xlsb", /* ... other formats ... */]
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}]
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});
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/* write file */
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// highlight-next-line
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XLSX.writeFile(workbook, result.filePath);
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}
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```
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:::note
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In older versions of Electron, `showSaveDialog` returned the path directly:
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```js
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var dialog = require('electron').remote.dialog;
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function exportFile(workbook) {
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var result = dialog.showSaveDialog();
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XLSX.writeFile(workbook, result);
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}
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```
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:::
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### Reading Files
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Electron offers 3 different ways to read files, two of which use Web APIs.
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@ -171,6 +131,46 @@ function importFile(workbook) {
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:::
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### Writing Files
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[`XLSX.writeFile`](/docs/api/write-options) writes workbooks to the file system.
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`showSaveDialog` shows a Save As dialog and returns the selected file name:
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```js
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/* from the renderer thread */
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const electron = require('@electron/remote');
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/* this function will show the save dialog and try to write the workbook */
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async function exportFile(workbook) {
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/* show Save As dialog */
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const result = await electron.dialog.showSaveDialog({
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title: 'Save file as',
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filters: [{
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name: "Spreadsheets",
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extensions: ["xlsx", "xls", "xlsb", /* ... other formats ... */]
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}]
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});
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/* write file */
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// highlight-next-line
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XLSX.writeFile(workbook, result.filePath);
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}
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```
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:::note
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In older versions of Electron, `showSaveDialog` returned the path directly:
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```js
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var dialog = require('electron').remote.dialog;
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function exportFile(workbook) {
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var result = dialog.showSaveDialog();
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XLSX.writeFile(workbook, result);
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}
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```
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:::
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## Complete Example
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:::note
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@ -13,8 +13,6 @@ import TabItem from '@theme/TabItem';
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The [Standalone scripts](/docs/getting-started/installation/standalone) can be
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referenced in a `SCRIPT` tag from the entry point HTML page.
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This demo was tested against NW.js 0.66.0 on 2023 January 07.
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The "Complete Example" creates an app that looks like the screenshots below:
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<table><thead><tr>
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@ -34,7 +32,7 @@ The "Complete Example" creates an app that looks like the screenshots below:
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NW.js provides solutions for reading and writing files.
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### Reading data
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### Reading Files
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The standard HTML5 `FileReader` techniques from the browser apply to NW.js!
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@ -64,7 +62,7 @@ async function handleFile(e) {
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document.getElementById("xlf").addEventListener("change", handleFile, false);
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```
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### Writing data
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### Writing Files
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File input elements with the attribute `nwsaveas` show UI for saving a file. The
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standard trick is to generate a hidden file input DOM element and "click" it.
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@ -102,6 +100,12 @@ input.click();
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## Complete Example
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:::note
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This demo was tested against NW.js 0.66.0 on 2023 January 07.
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:::
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1) Create a `package.json` file that specifies the entry point:
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```json title="package.json"
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@ -28,7 +28,7 @@ The "Complete Example" creates an app that looks like the screenshot:
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</td></tr></tbody></table>
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## Native Modules
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## Integration Details
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All operations must be run from Go code. This example passes Base64 strings.
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@ -225,9 +225,13 @@ async function exportFile(wb) {
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## Complete Example
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:::note
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This demo was tested against Wails `v2.3.1` on 2023 January 08 using
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the Svelte TypeScript starter.
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:::
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0) [Read Wails "Getting Started" guide and install dependencies.](https://wails.io/docs/gettingstarted/installation)
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1) Create a new Wails app:
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@ -28,7 +28,7 @@ The "Complete Example" creates an app that looks like the screenshot:
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</td></tr></tbody></table>
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## Native Modules
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## Integration Details
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:::note
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@ -123,7 +123,11 @@ async function saveFile(wb) {
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## Complete Example
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This demo was tested against Tauri `v1.2.3` on 2023 January 21.
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:::note
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This demo was tested against Tauri `v1.2.3` on 2023 February 12.
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:::
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0) [Read Tauri "Getting Started" guide and install dependencies.](https://tauri.app/v1/guides/getting-started/prerequisites)
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The [Standalone build](/docs/getting-started/installation/standalone) can be added
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to the entry `index.html`
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This demo was tested against "binaries" `4.7.0` and "client" `3.6.0`
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The "Complete Example" creates an app that looks like the screenshot:
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<table><thead><tr>
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<th><a href="#complete-example">macOS</a></th>
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<th><a href="#complete-example">Linux</a></th>
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</tr></thead><tbody><tr><td>
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![macOS screenshot](pathname:///neu/macos.png)
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</td><td>
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![Linux screenshot](pathname:///neu/linux.png)
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</td></tr></tbody></table>
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## Integration Details
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:::note
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@ -35,10 +50,6 @@ The starter already enables `os` so typically one line must be added:
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],
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```
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The "Complete Example" creates an app that looks like the screenshot:
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![SheetJS NeutralinoJS MacOS screenshot](pathname:///neu/macos.png)
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:::caution
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At the time of writing, `filters` did not work as expected on MacOS. They have
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@ -46,7 +57,67 @@ been omitted in the example and commented in the code snippets
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:::
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<details><summary><b>Complete Example</b> (click to show)</summary>
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### Reading Files
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There are two steps to reading files: obtaining a path and reading binary data:
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```js
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const filters = [
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{name: "Excel Binary Workbook", extensions: ["xlsb"]},
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{name: "Excel Workbook", extensions: ["xlsx"]},
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]
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async function openFile() {
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/* show open file dialog */
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const [filename] = await Neutralino.os.showOpenDialog(
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'Open a spreadsheet',
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{ /* filters, */ multiSelections: false }
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);
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/* read data into an ArrayBuffer */
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const ab = await Neutralino.filesystem.readBinaryFile(filename);
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/* parse with SheetJS */
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const wb = XLSX.read(ab);
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return wb;
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}
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```
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This method can be called from a button click or other event.
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### Writing Files
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There are two steps to writing files: obtaining a path and writing binary data:
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```js
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const filters = [
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{name: "Excel Binary Workbook", extensions: ["xlsb"]},
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{name: "Excel Workbook", extensions: ["xlsx"]},
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]
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async function saveFile(wb) {
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/* show save file dialog */
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const filename = await Neutralino.os.showSaveDialog(
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'Save to file',
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{ /* filters */ }
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);
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/* Generate workbook */
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const bookType = filename.slice(filename.lastIndexOf(".") + 1);
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const data = XLSX.write(wb, { bookType, type: "buffer" });
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/* save data to file */
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await Neutralino.filesystem.writeBinaryFile(filename, data);
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}
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```
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## Complete Example
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:::note
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This demo was tested on 2023 February 12 with "binaries" `4.7.0` and "client" `3.6.0`
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:::
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The app core state will be the HTML table. Reading files will add the table to
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the window. Writing files will parse the table into a spreadsheet.
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@ -187,60 +258,3 @@ npx @neutralinojs/neu run
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```
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Platform-specific programs will be created in the `dist` folder.
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</details>
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### Reading Files
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There are two steps to reading files: obtaining a path and reading binary data:
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```js
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const filters = [
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{name: "Excel Binary Workbook", extensions: ["xlsb"]},
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{name: "Excel Workbook", extensions: ["xlsx"]},
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]
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async function openFile() {
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/* show open file dialog */
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const [filename] = await Neutralino.os.showOpenDialog(
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'Open a spreadsheet',
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{ /* filters, */ multiSelections: false }
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);
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/* read data into an ArrayBuffer */
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const ab = await Neutralino.filesystem.readBinaryFile(filename);
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/* parse with SheetJS */
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const wb = XLSX.read(ab);
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return wb;
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}
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```
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This method can be called from a button click or other event.
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### Writing Files
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There are two steps to writing files: obtaining a path and writing binary data:
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```js
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const filters = [
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{name: "Excel Binary Workbook", extensions: ["xlsb"]},
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{name: "Excel Workbook", extensions: ["xlsx"]},
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]
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async function saveFile(wb) {
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/* show save file dialog */
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const filename = await Neutralino.os.showSaveDialog(
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'Save to file',
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{ /* filters */ }
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);
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/* Generate workbook */
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const bookType = filename.slice(filename.lastIndexOf(".") + 1);
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const data = XLSX.write(wb, { bookType, type: "buffer" });
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/* save data to file */
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await Neutralino.filesystem.writeBinaryFile(filename, data);
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}
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```
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docz/static/neu/linux.png
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BIN
docz/static/neu/linux.png
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<img src="https://sheetjs.com/sketch128.png" class="logo" alt="SheetJS" />
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SheetJS × Tauri {{ ver }}</a></h1>
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<button type="button" @click="openFile()">Load Data</button> or
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<button type="button" @click="saveFile()">Save Data</button>
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<p><b>Data from {{ origin }}</b></p>
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<div class="centre"><button type="button" @click="openFile()">Load Data</button> or
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<button type="button" @click="saveFile()">Save Data</button></div>
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<p class="centre"><b class="centre">Data from {{ origin }}</b></p>
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<table class="center"><tbody>
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<tr v-for="(row, index) in data" v-bind:key="index">
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<td v-for="(cell, col) in row" v-bind:key="col">
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@ -90,9 +90,9 @@ try {
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<style scoped>
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.logo {
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padding: 0px;
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height: 64px; width: 64px;
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vertical-align: text-top;
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will-change: filter;
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vertical-align: middle;
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}
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.logo:hover {
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filter: drop-shadow(0 0 2em #646cffaa);
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.logo.vue:hover {
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filter: drop-shadow(0 0 2em #42b883aa);
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}
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.centre { text-align: center; }
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table.center {
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margin-left: auto;
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margin-right: auto;
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