hedera-web/forms/cms/contact/index.js

import './style.scss';

export default new Class({
	Extends: Hedera.Form,
	Template: require('./ui.xml')

	,activate() {
		this.$.contactForm.onsubmit = () => {
			this._onSubmit(); return false; 
		};
		this.refreshCaptcha();
	}
	
	,refreshCaptcha() {
		params = {
			srv: 'rest:misc/captcha',
			stamp: new Date().getTime()
		};
		this.$.captchaImg.src = '?'+ Vn.Url.makeUri(params);
	}
	
	,async _onSubmit() {
		const form = this.$.contactForm;
		
		try {
			await this.conn.sendForm(this.$.contactForm);
		} catch (err) {
			Htk.Toast.showError(_('ErrorSendingData'));
			return;
		} finally {
			form['captcha'].value = '';
			this.refreshCaptcha();
		}

		form.reset();
		Htk.Toast.showMessage(_('DataSentSuccess'));
	}
});