BookStack/resources/assets/js/components/toggle-switch.js

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JavaScript
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class ToggleSwitch {
constructor(elem) {
this.elem = elem;
this.input = elem.querySelector('input[type=hidden]');
this.checkbox = elem.querySelector('input[type=checkbox]');
this.checkbox.addEventListener('change', this.stateChange.bind(this));
}
stateChange() {
this.input.value = (this.checkbox.checked ? 'true' : 'false');
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// Dispatch change event from hidden input so they can be listened to
// like a normal checkbox.
const changeEvent = new Event('change');
this.input.dispatchEvent(changeEvent);
}
}
export default ToggleSwitch;