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/* xlsx.js (C) 2013-present SheetJS -- http://sheetjs.com */ |
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/* vim: set ts=2: */ |
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import { Component } from "@angular/core"; |
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import * as dockModule from "tns-core-modules/ui/layouts/dock-layout"; |
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import * as buttonModule from "tns-core-modules/ui/button"; |
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import * as textModule from "tns-core-modules/text"; |
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import * as dialogs from "ui/dialogs"; |
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import * as fs from "tns-core-modules/file-system"; |
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/* NativeScript does not support import syntax for npm modules */ |
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const XLSX = require("./xlsx.full.min.js"); |
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@Component({ |
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selector: "my-app", |
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template: ` |
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<GridLayout rows="auto, *, auto"> |
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<ActionBar row="0" title="SheetJS NativeScript Demo" class="action-bar"></ActionBar> |
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<!-- data converted to HTML and rendered in web view --> |
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<WebView row="1" src="{{html}}"></WebView> |
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<DockLayout row="2" dock="bottom" stretchLastChild="false"> |
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<Button text="Import File" (tap)="import()" style="padding: 10px"></Button> |
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<Button text="Export File" (tap)="export()" style="padding: 10px"></Button> |
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</DockLayout> |
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</GridLayout> |
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` |
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}) |
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export class AppComponent { |
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html: string = ""; |
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constructor() { |
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const ws = XLSX.utils.aoa_to_sheet([[1,2],[3,4]]); |
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this.html = XLSX.utils.sheet_to_html(ws); |
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}; |
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/* Import button */ |
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async import() { |
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const filename: string = "SheetJSNS.xlsx"; |
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/* find appropriate path */ |
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const target: fs.Folder = fs.knownFolders.documents() || fs.knownFolders.ios.sharedPublic(); |
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const url: string = fs.path.normalize(target.path + "///" + filename); |
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const file: fs.File = fs.File.fromPath(url); |
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try { |
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/* get binary string */ |
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const bstr: string = await file.readText(textModule.encoding.ISO_8859_1); |
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/* read workbook */ |
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const wb = XLSX.read(bstr, { type: "binary" }); |
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/* grab first sheet */ |
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const wsname: string = wb.SheetNames[0]; |
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const ws = wb.Sheets[wsname]; |
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/* update table */ |
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this.html = XLSX.utils.sheet_to_html(ws); |
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dialogs.alert(`Attempting to read to SheetJSNS.xlsx in ${url}`); |
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} catch(e) { |
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dialogs.alert(e.message); |
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} |
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}; |
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/* Export button */ |
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async export() { |
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const wb = XLSX.read(this.html, { type: "string" }); |
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const filename: string = "SheetJSNS.xlsx"; |
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/* generate binary string */ |
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const wbout: string = XLSX.write(wb, { bookType: 'xlsx', type: 'binary' }); |
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/* find appropriate path */ |
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const target: fs.Folder = fs.knownFolders.documents() || fs.knownFolders.ios.sharedPublic(); |
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const url: string = fs.path.normalize(target.path + "///" + filename); |
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const file: fs.File = fs.File.fromPath(url); |
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/* attempt to save binary string to file */ |
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await file.writeText(wbout, textModule.encoding.ISO_8859_1); |
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dialogs.alert(`Wrote to SheetJSNS.xlsx in ${url}`); |
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}; |
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} |
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Otaku-Projects /
AngularJS-CRUD-PHP
