如何使用JavaScript UI控件（WijmoJS）構建Electron應用程序

時間 2019-12-13

標籤如何使用 javascript 控件 wijmojs 構建 electron 應用程序欄目 JavaScript 简体版

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概述

What is Electron?

Electron是一個使用JavaScript、HTML和CSS構建跨平臺桌面應用程序的框架。您能夠將Electron與純JavaScript或您選擇的JavaScript框架一塊兒使用：javascript

構建一個簡單的Electron應用程序

要建立基本的Electron應用程序，請按照下列步驟操做：css

git clone https://github.com/electron/electron-quick-start
cd electron-quick-start
npm install
npm start
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您應該看到以下所示的Hello World應用程序：html

將JavaScript UI控件（WijmoJS）添加到應用程序

要將WijmoJS添加到應用程序，請先安裝它。在命令提示符下，進入app文件夾（electron-quick-start）並鍵入：前端

npm install Wijmo
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接下來，使用VS Code或您喜愛的編輯器打開index.html文件，並添加如下內容：vue

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>Hello World!</title>

    <!-- add Bootstrap and Wijmo css -->
    <link href=https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css rel="stylesheet"/>
    <link href=https://cdn.grapecity.com/wijmo/5.latest/styles/wijmo.min.css rel="stylesheet"/>

    <!-- define the app styles -->
    <style> .app-panel { margin: 0 48pt; } .app-panel .wj-control { display: inline-block; vertical-align: top; width: 400px; height: 300px; } </style>
  </head>
  <body>
    <div class="container">
      <h1>Hello World!</h1>
      <p>
        <!-- Node.js APIs are available in this renderer process. -->
        We are using Node.js
        <script>document.write(process.versions.node)</script>,
        Chromium <script>document.write(process.versions.chrome)</script>,
        and Electron
        <script>document.write(process.versions.electron)</script>.
      </p>

      <!--add Wijmo controls to the page -->
      <div class="app-panel">
        <div id="theGrid"></div>
        <div id="theChart"></div>
      </div>
    </div>
    <script> // You can also require other files to run in this process require('./renderer.js') </script>
  </body>
</html>
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在這一步中，咱們爲兩個WijmoJS控件添加了一些樣式和主題元素。接下來，打開「renderer.js」文件並按以下所示進行編輯：java

// This file is required by the index.html file and will
// be executed in the renderer process for that window.
// All of the Node.js APIs are available in this process.

// import Wijmo
var wjCore = require('./node_modules/wijmo/wijmo.js');
var wjGrid = require('./node_modules/wijmo/wijmo.grid.js');
var wjChart = require('./node_modules/wijmo/wijmo.chart.js');

// set the Wijmo license key
var key = 'GrapeCity-Internal-Use-Only,…';
wjCore.setLicenseKey(key);

// create the controls
var theGrid = new wjGrid.FlexGrid('#theGrid', {
    itemsSource: getData()
});
var theChart = new wjChart.FlexChart('#theChart', {
    itemsSource: theGrid.itemsSource,
    bindingX: 'country',
    series: [
        { name: 'Sales', binding: 'sales' },
        { name: 'Expenses', binding: 'expenses' },
        { name: 'Downloads', binding: 'downloads' },
    ]
});

// get some random data
function getData() {
    var countries = 'US,Germany,UK,Japan,Italy,Greece'.split(','),
        data = [];
    for (var i = 0; i < countries.length; i++) {
        data.push({
        country: countries[i],
        sales: Math.random() * 10000,
        expenses: Math.random() * 5000,
        downloads: Math.round(Math.random() * 20000),
        });
    }
    return new wjCore.CollectionView(data);
}
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