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isMessageBoxActive
import Component from '@glimmer/component';
import { tracked } from '@glimmer/tracking';
export default class extends Component {
@tracked messageContent = '';
@tracked isFocused = false;
get isMessageBoxActive() {
return !!this.isFocused || !!this.messageContent;
}
toggle() {
this.isFocused = !this.isFocused;
}
}
import Controller from '@ember/controller';
export default class ApplicationController extends Controller {
appName = 'Ember Twiddle';
}
import { modifier } from 'ember-modifier';
import { assert } from '@ember/debug';
export default modifier(function sampleModifier(
element,
) {
alert('modifier init');
const resize = ev => {
alert('resize');
};
element.addEventListener('input', resize);
return () => element.removeEventListener('input', resize);
});
<br>
<br>
{{my-component}}
<br>
<br>
<p>isMessageBoxActive: <strong>{{this.isMessageBoxActive}}</strong></p>
<p>isFocused: <strong>{{this.isFocused}}</strong></p>
<p>messageContent: <strong>'{{this.messageContent}}'</strong></p>
<button onclick={{action toggle}}>Toggle isFocused</button>
<Textarea
@value={{this.messageContent}}
{{resize this.isMessageBoxActive}}
/>
{
"version": "0.17.1",
"EmberENV": {
"FEATURES": {},
"_TEMPLATE_ONLY_GLIMMER_COMPONENTS": true,
"_APPLICATION_TEMPLATE_WRAPPER": true,
"_JQUERY_INTEGRATION": true
},
"options": {
"use_pods": false,
"enable-testing": false
},
"dependencies": {
"jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.js",
"ember": "3.18.1",
"ember-template-compiler": "3.18.1",
"ember-testing": "3.18.1"
},
"addons": {
"@glimmer/component": "1.0.0",
"@ember/render-modifiers": "1.0.2",
"ember-modifier": "1.0.3"
}
}
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