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@Seebiscuit
Created February 25, 2021 15:47
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Update ValueConverter in single event loop with TaskQueue
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Dumber Gist</title>
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1.0, user-scalable=no">
<base href="/">
</head>
<!--
Dumber gist uses dumber bundler, the default bundle file
is /dist/entry-bundle.js.
The starting module is pointed to aurelia-bootstrapper
(data-main attribute on script) for Aurelia,
The aurelia bootstrapper then loads up user module "main"
(aurelia-app attribute on <body>) which is your src/main.js.
-->
<body aurelia-app="main">
<script src="/dist/entry-bundle.js" data-main="aurelia-bootstrapper"></script>
</body>
</html>
{
"dependencies": {
"aurelia-bootstrapper": "^2.3.3"
}
}
<template>
<h1>${message}</h1>
<input type="checkbox" checked.bind="isFiltering" >
<button click.trigger="onToggle()">Toggle?</button>
<ul if.bind="isFiltering">
<li repeat.for="item of items | logging:'isVisible'">${item}</li>
</ul>
</template>
import { inject, TaskQueue } from "aurelia-framework";
@inject(TaskQueue)
export class App {
constructor(taskQueue) {
this.taskQueue = taskQueue;
}
message = 'Hello Aurelia!';
isFiltering = true;
items = [...Array(5).keys()]
onToggle() {
this.isFiltering = false;
this.taskQueue.queueMicroTask(async () => {
console.log('doing work');
this.items[3] = 8;
this.isFiltering = true;
});
}
}
class LoggingValueConverter {
toView(v) {
console.log('filtering...', { v });
return v;
}
}
export function configure(aurelia) {
aurelia.use
.standardConfiguration()
.globalResources(LoggingValueConverter)
.developmentLogging('info');
aurelia.start().then(() => aurelia.setRoot());
}
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