js/forms.js
(function ($) {
$(document).ready(function() {
// Function to update labels of text fields
Materialize.updateTextFields = function() {
var input_selector = 'input[type=text], input[type=password], input[type=email], input[type=url], input[type=tel], input[type=number], input[type=search], textarea';
$(input_selector).each(function(index, element) {
var $this = $(this);
if ($(element).val().length > 0 || $(element).is(':focus') || element.autofocus || $this.attr('placeholder') !== undefined) {
$this.siblings('label').addClass('active');
} else if ($(element)[0].validity) {
$this.siblings('label').toggleClass('active', $(element)[0].validity.badInput === true);
} else {
$this.siblings('label').removeClass('active');
}
});
};
// Text based inputs
var input_selector = 'input[type=text], input[type=password], input[type=email], input[type=url], input[type=tel], input[type=number], input[type=search], textarea';
// Add active if form auto complete
$(document).on('change', input_selector, function () {
if($(this).val().length !== 0 || $(this).attr('placeholder') !== undefined) {
$(this).siblings('label').addClass('active');
}
validate_field($(this));
});
// Add active if input element has been pre-populated on document ready
$(document).ready(function() {
Materialize.updateTextFields();
});
// HTML DOM FORM RESET handling
$(document).on('reset', function(e) {
var formReset = $(e.target);
if (formReset.is('form')) {
formReset.find(input_selector).removeClass('valid').removeClass('invalid');
formReset.find(input_selector).each(function () {
if ($(this).attr('value') === '') {
$(this).siblings('label').removeClass('active');
}
});
// Reset select
formReset.find('select.initialized').each(function () {
var reset_text = formReset.find('option[selected]').text();
formReset.siblings('input.select-dropdown').val(reset_text);
});
}
});
// Add active when element has focus
$(document).on('focus', input_selector, function () {
$(this).siblings('label, .prefix').addClass('active');
});
$(document).on('blur', input_selector, function () {
var $inputElement = $(this);
var selector = ".prefix";
if ($inputElement.val().length === 0 && $inputElement[0].validity.badInput !== true && $inputElement.attr('placeholder') === undefined) {
selector += ", label";
}
$inputElement.siblings(selector).removeClass('active');
validate_field($inputElement);
});
window.validate_field = function(object) {
var hasLength = object.attr('data-length') !== undefined;
var lenAttr = parseInt(object.attr('data-length'));
var len = object.val().length;
if (object.val().length === 0 && object[0].validity.badInput === false && !object.is(':required')) {
if (object.hasClass('validate')) {
object.removeClass('valid');
object.removeClass('invalid');
}
}
else {
if (object.hasClass('validate')) {
// Check for character counter attributes
if ((object.is(':valid') && hasLength && (len <= lenAttr)) || (object.is(':valid') && !hasLength)) {
object.removeClass('invalid');
object.addClass('valid');
}
else {
object.removeClass('valid');
object.addClass('invalid');
}
}
}
};
// Radio and Checkbox focus class
var radio_checkbox = 'input[type=radio], input[type=checkbox]';
$(document).on('keyup.radio', radio_checkbox, function(e) {
// TAB, check if tabbing to radio or checkbox.
if (e.which === 9) {
$(this).addClass('tabbed');
var $this = $(this);
$this.one('blur', function(e) {
$(this).removeClass('tabbed');
});
return;
}
});
// Textarea Auto Resize
var hiddenDiv = $('.hiddendiv').first();
if (!hiddenDiv.length) {
hiddenDiv = $('<div class="hiddendiv common"></div>');
$('body').append(hiddenDiv);
}
var text_area_selector = '.materialize-textarea';
function textareaAutoResize($textarea) {
// Set font properties of hiddenDiv
var fontFamily = $textarea.css('font-family');
var fontSize = $textarea.css('font-size');
var lineHeight = $textarea.css('line-height');
var padding = $textarea.css('padding');
if (fontSize) { hiddenDiv.css('font-size', fontSize); }
if (fontFamily) { hiddenDiv.css('font-family', fontFamily); }
if (lineHeight) { hiddenDiv.css('line-height', lineHeight); }
if (padding) { hiddenDiv.css('padding', padding); }
// Set original-height, if none
if (!$textarea.data('original-height')) {
$textarea.data('original-height', $textarea.height());
}
if ($textarea.attr('wrap') === 'off') {
hiddenDiv.css('overflow-wrap', 'normal')
.css('white-space', 'pre');
}
hiddenDiv.text($textarea.val() + '\n');
var content = hiddenDiv.html().replace(/\n/g, '<br>');
hiddenDiv.html(content);
// When textarea is hidden, width goes crazy.
// Approximate with half of window size
if ($textarea.is(':visible')) {
hiddenDiv.css('width', $textarea.width());
}
else {
hiddenDiv.css('width', $(window).width()/2);
}
/**
* Resize if the new height is greater than the
* original height of the textarea
*/
if ($textarea.data('original-height') <= hiddenDiv.height()) {
$textarea.css('height', hiddenDiv.height());
} else if ($textarea.val().length < $textarea.data('previous-length')) {
/**
* In case the new height is less than original height, it
* means the textarea has less text than before
* So we set the height to the original one
*/
$textarea.css('height', $textarea.data('original-height'));
}
$textarea.data('previous-length', $textarea.val().length);
}
$(text_area_selector).each(function () {
var $textarea = $(this);
/**
* Instead of resizing textarea on document load,
* store the original height and the original length
*/
$textarea.data('original-height', $textarea.height());
$textarea.data('previous-length', $textarea.val().length);
});
$('body').on('keyup keydown autoresize', text_area_selector, function () {
textareaAutoResize($(this));
});
// File Input Path
$(document).on('change', '.file-field input[type="file"]', function () {
var file_field = $(this).closest('.file-field');
var path_input = file_field.find('input.file-path');
var files = $(this)[0].files;
var file_names = [];
for (var i = 0; i < files.length; i++) {
file_names.push(files[i].name);
}
path_input.val(file_names.join(", "));
path_input.trigger('change');
});
/****************
* Range Input *
****************/
var range_type = 'input[type=range]';
var range_mousedown = false;
var left;
$(range_type).each(function () {
var thumb = $('<span class="thumb"><span class="value"></span></span>');
$(this).after(thumb);
});
var showRangeBubble = function(thumb) {
var paddingLeft = parseInt(thumb.parent().css('padding-left'));
var marginLeft = (-7 + paddingLeft) + 'px';
thumb.velocity({ height: "30px", width: "30px", top: "-30px", marginLeft: marginLeft}, { duration: 300, easing: 'easeOutExpo' });
};
var calcRangeOffset = function(range) {
var width = range.width() - 15;
var max = parseFloat(range.attr('max'));
var min = parseFloat(range.attr('min'));
var percent = (parseFloat(range.val()) - min) / (max - min);
return percent * width;
}
var range_wrapper = '.range-field';
$(document).on('change', range_type, function(e) {
var thumb = $(this).siblings('.thumb');
thumb.find('.value').html($(this).val());
if (!thumb.hasClass('active')) {
showRangeBubble(thumb);
}
var offsetLeft = calcRangeOffset($(this));
thumb.addClass('active').css('left', offsetLeft);
});
$(document).on('mousedown touchstart', range_type, function(e) {
var thumb = $(this).siblings('.thumb');
// If thumb indicator does not exist yet, create it
if (thumb.length <= 0) {
thumb = $('<span class="thumb"><span class="value"></span></span>');
$(this).after(thumb);
}
// Set indicator value
thumb.find('.value').html($(this).val());
range_mousedown = true;
$(this).addClass('active');
if (!thumb.hasClass('active')) {
showRangeBubble(thumb);
}
if (e.type !== 'input') {
var offsetLeft = calcRangeOffset($(this));
thumb.addClass('active').css('left', offsetLeft);
}
});
$(document).on('mouseup touchend', range_wrapper, function() {
range_mousedown = false;
$(this).removeClass('active');
});
$(document).on('input mousemove touchmove', range_wrapper, function(e) {
var thumb = $(this).children('.thumb');
var left;
var input = $(this).find(range_type);
if (range_mousedown) {
if (!thumb.hasClass('active')) {
showRangeBubble(thumb);
}
var offsetLeft = calcRangeOffset(input);
thumb.addClass('active').css('left', offsetLeft);
thumb.find('.value').html(thumb.siblings(range_type).val());
}
});
$(document).on('mouseout touchleave', range_wrapper, function() {
if (!range_mousedown) {
var thumb = $(this).children('.thumb');
var paddingLeft = parseInt($(this).css('padding-left'));
var marginLeft = (7 + paddingLeft) + 'px';
if (thumb.hasClass('active')) {
thumb.velocity({ height: '0', width: '0', top: '10px', marginLeft: marginLeft}, { duration: 100 });
}
thumb.removeClass('active');
}
});
/**************************
* Auto complete plugin *
*************************/
$.fn.autocomplete = function (options) {
// Defaults
var defaults = {
data: {},
limit: Infinity,
onAutocomplete: null,
minLength: 1
};
options = $.extend(defaults, options);
return this.each(function() {
var $input = $(this);
var data = options.data,
count = 0,
activeIndex = -1,
oldVal,
$inputDiv = $input.closest('.input-field'); // Div to append on
// Check if data isn't empty
if (!$.isEmptyObject(data)) {
var $autocomplete = $('<ul class="autocomplete-content dropdown-content"></ul>');
var $oldAutocomplete;
// Append autocomplete element.
// Prevent double structure init.
if ($inputDiv.length) {
$oldAutocomplete = $inputDiv.children('.autocomplete-content.dropdown-content').first();
if (!$oldAutocomplete.length) {
$inputDiv.append($autocomplete); // Set ul in body
}
} else {
$oldAutocomplete = $input.next('.autocomplete-content.dropdown-content');
if (!$oldAutocomplete.length) {
$input.after($autocomplete);
}
}
if ($oldAutocomplete.length) {
$autocomplete = $oldAutocomplete;
}
// Highlight partial match.
var highlight = function(string, $el) {
var img = $el.find('img');
var matchStart = $el.text().toLowerCase().indexOf("" + string.toLowerCase() + ""),
matchEnd = matchStart + string.length - 1,
beforeMatch = $el.text().slice(0, matchStart),
matchText = $el.text().slice(matchStart, matchEnd + 1),
afterMatch = $el.text().slice(matchEnd + 1);
$el.html("<span>" + beforeMatch + "<span class='highlight'>" + matchText + "</span>" + afterMatch + "</span>");
if (img.length) {
$el.prepend(img);
}
};
// Reset current element position
var resetCurrentElement = function() {
activeIndex = -1;
$autocomplete.find('.active').removeClass('active');
}
// Remove autocomplete elements
var removeAutocomplete = function() {
$autocomplete.empty();
resetCurrentElement();
oldVal = undefined;
};
$input.off('blur.autocomplete').on('blur.autocomplete', function() {
removeAutocomplete();
});
// Perform search
$input.off('keyup.autocomplete focus.autocomplete').on('keyup.autocomplete focus.autocomplete', function (e) {
// Reset count.
count = 0;
var val = $input.val().toLowerCase();
// Don't capture enter or arrow key usage.
if (e.which === 13 ||
e.which === 38 ||
e.which === 40) {
return;
}
// Check if the input isn't empty
if (oldVal !== val) {
removeAutocomplete();
if (val.length >= options.minLength) {
for(var key in data) {
if (data.hasOwnProperty(key) &&
key.toLowerCase().indexOf(val) !== -1) {
// Break if past limit
if (count >= options.limit) {
break;
}
var autocompleteOption = $('<li></li>');
if (!!data[key]) {
autocompleteOption.append('<img src="'+ data[key] +'" class="right circle"><span>'+ key +'</span>');
} else {
autocompleteOption.append('<span>'+ key +'</span>');
}
$autocomplete.append(autocompleteOption);
highlight(val, autocompleteOption);
count++;
}
}
}
}
// Update oldVal
oldVal = val;
});
$input.off('keydown.autocomplete').on('keydown.autocomplete', function (e) {
// Arrow keys and enter key usage
var keyCode = e.which,
liElement,
numItems = $autocomplete.children('li').length,
$active = $autocomplete.children('.active').first();
// select element on Enter
if (keyCode === 13 && activeIndex >= 0) {
liElement = $autocomplete.children('li').eq(activeIndex);
if (liElement.length) {
liElement.trigger('mousedown.autocomplete');
e.preventDefault();
}
return;
}
// Capture up and down key
if ( keyCode === 38 || keyCode === 40 ) {
e.preventDefault();
if (keyCode === 38 &&
activeIndex > 0) {
activeIndex--;
}
if (keyCode === 40 &&
activeIndex < (numItems - 1)) {
activeIndex++;
}
$active.removeClass('active');
if (activeIndex >= 0) {
$autocomplete.children('li').eq(activeIndex).addClass('active');
}
}
});
// Set input value
$autocomplete.off('mousedown.autocomplete touchstart.autocomplete').on('mousedown.autocomplete touchstart.autocomplete', 'li', function () {
var text = $(this).text().trim();
$input.val(text);
$input.trigger('change');
removeAutocomplete();
// Handle onAutocomplete callback.
if (typeof(options.onAutocomplete) === "function") {
options.onAutocomplete.call(this, text);
}
});
// Empty data
} else {
$input.off('keyup.autocomplete focus.autocomplete');
}
});
};
}); // End of $(document).ready
/*******************
* Select Plugin *
******************/
$.fn.material_select = function (callback) {
$(this).each(function(){
var $select = $(this);
if ($select.hasClass('browser-default')) {
return; // Continue to next (return false breaks out of entire loop)
}
var multiple = $select.attr('multiple') ? true : false,
lastID = $select.attr('data-select-id'); // Tear down structure if Select needs to be rebuilt
if (lastID) {
$select.parent().find('span.caret').remove();
$select.parent().find('input').remove();
$select.unwrap();
$('ul#select-options-'+lastID).remove();
}
// If destroying the select, remove the selelct-id and reset it to it's uninitialized state.
if(callback === 'destroy') {
$select.removeAttr('data-select-id').removeClass('initialized');
$(window).off('click.select');
return;
}
var uniqueID = Materialize.guid();
$select.attr('data-select-id', uniqueID);
var wrapper = $('<div class="select-wrapper"></div>');
// to fix Chrome 73 bug
wrapper.click(function (e) {
e.stopPropagation();
});
wrapper.addClass($select.attr('class'));
if ($select.is(':disabled'))
wrapper.addClass('disabled');
var options = $('<ul id="select-options-' + uniqueID +'" class="dropdown-content select-dropdown ' + (multiple ? 'multiple-select-dropdown' : '') + '"></ul>'),
selectChildren = $select.children('option, optgroup'),
valuesSelected = [],
optionsHover = false;
var label = $select.find('option:selected').html() || $select.find('option:first').html() || "";
// Function that renders and appends the option taking into
// account type and possible image icon.
var appendOptionWithIcon = function(select, option, type) {
// Add disabled attr if disabled
var disabledClass = (option.is(':disabled')) ? 'disabled ' : '';
var optgroupClass = (type === 'optgroup-option') ? 'optgroup-option ' : '';
var multipleCheckbox = multiple ? '<input type="checkbox"' + disabledClass + '/><label></label>' : '';
// add icons
var icon_url = option.data('icon');
var classes = option.attr('class');
if (!!icon_url) {
var classString = '';
if (!!classes) classString = ' class="' + classes + '"';
// Check for multiple type.
options.append($('<li class="' + disabledClass + optgroupClass + '"><img alt="" src="' + icon_url + '"' + classString + '><span>' + multipleCheckbox + option.html() + '</span></li>'));
return true;
}
// Check for multiple type.
options.append($('<li class="' + disabledClass + optgroupClass + '"><span>' + multipleCheckbox + option.html() + '</span></li>'));
};
/* Create dropdown structure. */
if (selectChildren.length) {
selectChildren.each(function() {
if ($(this).is('option')) {
// Direct descendant option.
if (multiple) {
appendOptionWithIcon($select, $(this), 'multiple');
} else {
appendOptionWithIcon($select, $(this));
}
} else if ($(this).is('optgroup')) {
// Optgroup.
var selectOptions = $(this).children('option');
options.append($('<li class="optgroup"><span>' + $(this).attr('label') + '</span></li>'));
selectOptions.each(function() {
appendOptionWithIcon($select, $(this), 'optgroup-option');
});
}
});
}
options.find('li:not(.optgroup)').each(function (i) {
$(this).click(function (e) {
// Check if option element is disabled
if (!$(this).hasClass('disabled') && !$(this).hasClass('optgroup')) {
var selected = true;
if (multiple) {
$('input[type="checkbox"]', this).prop('checked', function(i, v) { return !v; });
selected = toggleEntryFromArray(valuesSelected, i, $select);
$newSelect.trigger('focus');
} else {
options.find('li').removeClass('active');
$(this).toggleClass('active');
$newSelect.val($(this).text());
}
activateOption(options, $(this));
$select.find('option').eq(i).prop('selected', selected);
// Trigger onchange() event
$select.trigger('change');
if (typeof callback !== 'undefined') callback();
}
e.stopPropagation();
});
});
// Wrap Elements
$select.wrap(wrapper);
// Add Select Display Element
var dropdownIcon = $('<span class="caret">▼</span>');
// escape double quotes
var sanitizedLabelHtml = label.replace(/"/g, '"');
var $newSelect = $('<input type="text" class="select-dropdown" readonly="true" ' + (($select.is(':disabled')) ? 'disabled' : '') + ' data-activates="select-options-' + uniqueID +'" value="'+ sanitizedLabelHtml +'"/>');
$select.before($newSelect);
$newSelect.before(dropdownIcon);
$newSelect.after(options);
// Check if section element is disabled
if (!$select.is(':disabled')) {
$newSelect.dropdown({'hover': false});
}
// Copy tabindex
if ($select.attr('tabindex')) {
$($newSelect[0]).attr('tabindex', $select.attr('tabindex'));
}
$select.addClass('initialized');
$newSelect.on({
'focus': function (){
if ($('ul.select-dropdown').not(options[0]).is(':visible')) {
$('input.select-dropdown').trigger('close');
$(window).off('click.select');
}
if (!options.is(':visible')) {
$(this).trigger('open', ['focus']);
var label = $(this).val();
if (multiple && label.indexOf(',') >= 0) {
label = label.split(',')[0];
}
var selectedOption = options.find('li').filter(function() {
return $(this).text().toLowerCase() === label.toLowerCase();
})[0];
activateOption(options, selectedOption, true);
$(window).off('click.select').on('click.select', function () {
multiple && (optionsHover || $newSelect.trigger('close'));
$(window).off('click.select');
});
}
},
'click': function (e){
e.stopPropagation();
}
});
$newSelect.on('blur', function() {
if (!multiple) {
$(this).trigger('close');
$(window).off('click.select');
}
options.find('li.selected').removeClass('selected');
});
options.hover(function() {
optionsHover = true;
}, function () {
optionsHover = false;
});
// Add initial multiple selections.
if (multiple) {
$select.find("option:selected:not(:disabled)").each(function () {
var index = this.index;
toggleEntryFromArray(valuesSelected, index, $select);
options.find("li:not(.optgroup)").eq(index).find(":checkbox").prop("checked", true);
});
}
/**
* Make option as selected and scroll to selected position
* @param {jQuery} collection Select options jQuery element
* @param {Element} newOption element of the new option
* @param {Boolean} firstActivation If on first activation of select
*/
var activateOption = function(collection, newOption, firstActivation) {
if (newOption) {
collection.find('li.selected').removeClass('selected');
var option = $(newOption);
option.addClass('selected');
if (!multiple || !!firstActivation) {
options.scrollTo(option);
}
}
};
// Allow user to search by typing
// this array is cleared after 1 second
var filterQuery = [],
onKeyDown = function(e){
// TAB - switch to another input
if(e.which == 9){
$newSelect.trigger('close');
return;
}
// ARROW DOWN WHEN SELECT IS CLOSED - open select options
if(e.which == 40 && !options.is(':visible')){
$newSelect.trigger('open');
return;
}
// ENTER WHEN SELECT IS CLOSED - submit form
if(e.which == 13 && !options.is(':visible')){
return;
}
e.preventDefault();
// CASE WHEN USER TYPE LETTERS
var letter = String.fromCharCode(e.which).toLowerCase(),
nonLetters = [9,13,27,38,40];
if (letter && (nonLetters.indexOf(e.which) === -1)) {
filterQuery.push(letter);
var string = filterQuery.join(''),
newOption = options.find('li').filter(function() {
return $(this).text().toLowerCase().indexOf(string) === 0;
})[0];
if (newOption) {
activateOption(options, newOption);
}
}
// ENTER - select option and close when select options are opened
if (e.which == 13) {
var activeOption = options.find('li.selected:not(.disabled)')[0];
if(activeOption){
$(activeOption).trigger('click');
if (!multiple) {
$newSelect.trigger('close');
}
}
}
// ARROW DOWN - move to next not disabled option
if (e.which == 40) {
if (options.find('li.selected').length) {
newOption = options.find('li.selected').next('li:not(.disabled)')[0];
} else {
newOption = options.find('li:not(.disabled)')[0];
}
activateOption(options, newOption);
}
// ESC - close options
if (e.which == 27) {
$newSelect.trigger('close');
}
// ARROW UP - move to previous not disabled option
if (e.which == 38) {
newOption = options.find('li.selected').prev('li:not(.disabled)')[0];
if(newOption)
activateOption(options, newOption);
}
// Automaticaly clean filter query so user can search again by starting letters
setTimeout(function(){ filterQuery = []; }, 1000);
};
$newSelect.on('keydown', onKeyDown);
});
function toggleEntryFromArray(entriesArray, entryIndex, select) {
var index = entriesArray.indexOf(entryIndex),
notAdded = index === -1;
if (notAdded) {
entriesArray.push(entryIndex);
} else {
entriesArray.splice(index, 1);
}
select.siblings('ul.dropdown-content').find('li:not(.optgroup)').eq(entryIndex).toggleClass('active');
// use notAdded instead of true (to detect if the option is selected or not)
select.find('option').eq(entryIndex).prop('selected', notAdded);
setValueToInput(entriesArray, select);
return notAdded;
}
function setValueToInput(entriesArray, select) {
var value = '';
for (var i = 0, count = entriesArray.length; i < count; i++) {
var text = select.find('option').eq(entriesArray[i]).text();
i === 0 ? value += text : value += ', ' + text;
}
if (value === '') {
value = select.find('option:disabled').eq(0).text();
}
select.siblings('input.select-dropdown').val(value);
}
};
}( jQuery ));