Skip to content

Instantly share code, notes, and snippets.

@cawa-93
Created June 23, 2021 08:23
Show Gist options
  • Save cawa-93/4c1793bf1df43f041872af870decb5a9 to your computer and use it in GitHub Desktop.
Save cawa-93/4c1793bf1df43f041872af870decb5a9 to your computer and use it in GitHub Desktop.
Reproducion for Electron issue #29319
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<!-- https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP -->
<meta http-equiv="Content-Security-Policy" content="default-src 'self'; script-src 'self'">
<meta http-equiv="X-Content-Security-Policy" content="default-src 'self'; script-src 'self'">
<title>Electron Issue #29319</title>
</head>
<body>
<ol>
<li>Open browser developer tools</li>
<li>Go to <b>Application</b> -> <b>Storage</b> </li>
<li>Enable <b>"Simulate custom storage quota"</b>. 1MB for example.</li>
<li>Push the data in the IndexedDB below several times to Exceeded quota</li>
<li>Expected Behavior: Alert with <code>QuotaExceededError</code>
</ol>
<form>
<label>How many Items push to IndexedDB?
<input type="number" value="10000">
<button>Push data to IndexedDB</button>
</label>
</form>
<p id="storage-stat">
Storage quota: <span id="quota"></span>.<br>
Storage usage: <span id="usage"></span> (<span id="usage-percent"></span>%)
</p>
<!-- You can also require other files to run in this process -->
<script src="./renderer.js"></script>
</body>
</html>
// Modules to control application life and create native browser window
const {app, BrowserWindow} = require('electron')
const path = require('path')
function createWindow () {
// Create the browser window.
const mainWindow = new BrowserWindow({
width: 800,
height: 600,
})
// and load the index.html of the app.
mainWindow.loadFile('index.html')
// Open the DevTools.
// mainWindow.webContents.openDevTools()
}
// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
// Some APIs can only be used after this event occurs.
app.whenReady().then(() => {
createWindow()
app.on('activate', function () {
// On macOS it's common to re-create a window in the app when the
// dock icon is clicked and there are no other windows open.
if (BrowserWindow.getAllWindows().length === 0) createWindow()
})
})
// Quit when all windows are closed, except on macOS. There, it's common
// for applications and their menu bar to stay active until the user quits
// explicitly with Cmd + Q.
app.on('window-all-closed', function () {
if (process.platform !== 'darwin') app.quit()
})
// In this file you can include the rest of your app's specific main process
// code. You can also put them in separate files and require them here.
function updateStorestat() {
return navigator.storage.estimate().then(estimate => {
console.log({estimate})
document.body.querySelector('#quota').textContent = estimate.quota
document.body.querySelector('#usage').textContent = estimate.usage
document.body.querySelector('#usage-percent').textContent = estimate.usage * 100 / estimate.quota
})
}
updateStorestat()
document.querySelector('form').addEventListener('submit', async (event) => {
event.preventDefault()
pushDataToIdb(document.querySelector('input').valueAsNumber)
.then(updateStorestat)
.catch(e => alert(e))
})
function pushDataToIdb(arraySize = 10000) {
const dataPlacehonder = new Array(arraySize).fill('text-data-placeholder')
return new Promise((resolve, reject) => {
const request = window.indexedDB.open("MyTestDatabase", 1);
request.onerror = event => reject(event.target.error)
request.onupgradeneeded = function(event) {
var db = event.target.result;
db.createObjectStore("test-data", { keyPath: "index", autoIncrement: true });
};
request.onsuccess = function(event) {
db = event.target.result;
db.onerror = event => reject(event.target.error)
var transaction = db.transaction(["test-data"], "readwrite");
transaction.onerror = event => reject(event.target.error)
transaction.onabort = event => reject(event.target.error)
transaction.oncomplete = () => resolve()
var objectStore = transaction.objectStore("test-data");
var request = objectStore.add(dataPlacehonder);
request.onerror = event => reject(event.target.error)
};
})
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment