Form messages

formMessages.js

/**
 * Display error message.
 */
Nette.addError = function(elem, message) {
	var el = $(elem);
	el.closest('.control-group').addClass('error');
	el.closest('.controls').children('.help-inline').remove();
	el.closest('.controls').append(' ', $('<p>', {
		text: message,
		'class': 'help-inline'
	}));
};

/**
 * Removes error message.
 */
Nette.removeError = function(elem) {
	var el = $(elem);
	el.closest('.control-group').removeClass('error');
	el.closest('.controls').children('.help-inline').remove();
};

/**
 * Validates whole form.
 */
Nette.validateForm = function(sender) {
	var form = sender.form || sender;
	if (form['nette-submittedBy'] && form['nette-submittedBy'].getAttribute('formnovalidate') !== null) {
		return true;
	}
	var success = true;
	for (var i = 0; i < form.elements.length; i++) {
		var elem = form.elements[i];
		if (!(elem.nodeName.toLowerCase() in {input: 1, select: 1, textarea: 1}) ||
			(elem.type in {hidden: 1, submit: 1, image: 1, reset: 1}) ||
			elem.disabled || elem.readonly
		) {
			continue;
		}
		if (!Nette.validateControl(elem)) {
			if (success && elem.focus) {
				elem.focus();
			}
			success = false;
		}
	}
	return success;
};

/**
 * Setup handlers.
 */
Nette.initForm = function(form) {
	form.noValidate = 'novalidate';

	Nette.addEvent(form, 'submit', function(e) {
		if (!Nette.validateForm(form)) {
			e = e || event;
			e.cancelBubble = true;
			if (e.stopPropagation) {
				e.stopPropagation();
			}
			return false;
		}
	});

	Nette.addEvent(form, 'click', function(e) {
		e = e || event;
		var target = e.target || e.srcElement;
		form['nette-submittedBy'] = (target.type in {submit: 1, image: 1}) ? target : null;
	});

	for (var i = 0; i < form.elements.length; i++) {
		Nette.addEvent(form.elements[i], 'blur', function(e) {
			Nette.removeError(this);
			Nette.validateControl(this);
		});
		Nette.toggleControl(form.elements[i], null, true);
	}
};