Skip to content

Instantly share code, notes, and snippets.

Embed
What would you like to do?
Race Condition on run.later()
import Ember from 'ember';
export default Ember.Controller.extend({
appName: 'Ember Twiddle',
textBoxInDOM: Ember.computed(function()
{
let elem = document.getElementById('codeThing');
alert((typeof elem));
return (typeof elem);
}),
displayTextBox: true,
codeAsWeType: null,
codeChangedContext: null,
codeDidChange(code)
{
Ember.run.cancel(this.get('codeChangedContext'));
let context = Ember.run.later(this, function()
{
if (this.get('displayTextBox') === false) {
alert("action for element removed from the DOM shouldn't fire?");
}
this.set('codeAsWeType', null);
this.set('codeAsWeType', code);
}, 800);
this.codeChangedContext = context;
},
actions:
{
codeChanged(code)
{
this.codeDidChange(code);
},
buttonClicked()
{
this.toggleProperty('displayTextBox');
}
}
});
<h1>Race condition for action on run.later()</h1>
<br>
<p>Type something in the text box below.</p>
<p>After a short delay what you type will appear below</p>
<p>Click on the button before what you type shows up.</p>
<br>
{{#if displayTextBox}}
<input id="codeThing" value={{codeText}} oninput={{action "codeChanged" value="target.value"}}>
<br>
{{/if}}
<p>You are typing: {{codeAsWeType}}</p>
<br>
<button {{action "buttonClicked"}}>Click to cause racing condition.</button>
<br>
<br>
{
"version": "0.12.1",
"EmberENV": {
"FEATURES": {}
},
"options": {
"use_pods": false,
"enable-testing": false
},
"dependencies": {
"jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
"ember": "2.12.0",
"ember-template-compiler": "2.12.0",
"ember-testing": "2.12.0"
},
"addons": {
"ember-data": "2.12.1"
}
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.