FGABreja/static/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';
$(input_selector).each(function(index, element) {
if ($(element).val().length > 0 || $(this).attr('placeholder') !== undefined || $(element)[0].validity.badInput === true) {
$(this).siblings('label').addClass('active');
}
else {
$(this).siblings('label, i').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';
// Handle HTML5 autofocus
$('input[autofocus]').siblings('label, i').addClass('active');
// 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, i').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, i').addClass('active');
});
$(document).on('blur', input_selector, function () {
var $inputElement = $(this);
if ($inputElement.val().length === 0 && $inputElement[0].validity.badInput !== true && $inputElement.attr('placeholder') === undefined) {
$inputElement.siblings('label, i').removeClass('active');
}
if ($inputElement.val().length === 0 && $inputElement[0].validity.badInput !== true && $inputElement.attr('placeholder') !== undefined) {
$inputElement.siblings('i').removeClass('active');
}
validate_field($inputElement);
});
window.validate_field = function(object) {
var hasLength = object.attr('length') !== undefined;
var lenAttr = parseInt(object.attr('length'));
var len = object.val().length;
if (object.val().length === 0 && object[0].validity.badInput === false) {
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');
}
}
}
};
// 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 = $textarea.css('font-size');
if (fontSize) { hiddenDiv.css('font-size', fontSize); }
if (fontFamily) { hiddenDiv.css('font-family', fontFamily); }
if ($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);
}
$textarea.css('height', hiddenDiv.height());
}
$(text_area_selector).each(function () {
var $textarea = $(this);
if ($textarea.val().length) {
textareaAutoResize($textarea);
}
});
$('body').on('keyup keydown autoresize', text_area_selector, function () {
textareaAutoResize($(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 range_wrapper = '.range-field';
$(document).on('change', range_type, function(e) {
var thumb = $(this).siblings('.thumb');
thumb.find('.value').html($(this).val());
});
$(document).on('input 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>');
$(this).append(thumb);
}
// Set indicator value
thumb.find('.value').html($(this).val());
range_mousedown = true;
$(this).addClass('active');
if (!thumb.hasClass('active')) {
thumb.velocity({ height: "30px", width: "30px", top: "-20px", marginLeft: "-15px"}, { duration: 300, easing: 'easeOutExpo' });
}
if(e.pageX === undefined || e.pageX === null){//mobile
left = e.originalEvent.touches[0].pageX - $(this).offset().left;
}
else{ // desktop
left = e.pageX - $(this).offset().left;
}
var width = $(this).outerWidth();
if (left < 0) {
left = 0;
}
else if (left > width) {
left = width;
}
thumb.addClass('active').css('left', left);
thumb.find('.value').html($(this).val());
});
$(document).on('mouseup touchend', range_wrapper, function() {
range_mousedown = false;
$(this).removeClass('active');
});
$(document).on('mousemove touchmove', range_wrapper, function(e) {
var thumb = $(this).children('.thumb');
var left;
if (range_mousedown) {
if (!thumb.hasClass('active')) {
thumb.velocity({ height: '30px', width: '30px', top: '-20px', marginLeft: '-15px'}, { duration: 300, easing: 'easeOutExpo' });
}
if (e.pageX === undefined || e.pageX === null) { //mobile
left = e.originalEvent.touches[0].pageX - $(this).offset().left;
}
else{ // desktop
left = e.pageX - $(this).offset().left;
}
var width = $(this).outerWidth();
if (left < 0) {
left = 0;
}
else if (left > width) {
left = width;
}
thumb.addClass('active').css('left', left);
thumb.find('.value').html(thumb.siblings(range_type).val());
}
});
$(document).on('mouseout touchleave', range_wrapper, function() {
if (!range_mousedown) {
var thumb = $(this).children('.thumb');
if (thumb.hasClass('active')) {
thumb.velocity({ height: '0', width: '0', top: '10px', marginLeft: '-6px'}, { duration: 100 });
}
thumb.removeClass('active');
}
});
}); // End of $(document).ready
// Select Plugin
$.fn.material_select = function (callback) {
$(this).each(function(){
$select = $(this);
if ( $select.hasClass('browser-default')) {
return; // Continue to next (return false breaks out of entire loop)
}
// Tear down structure if Select needs to be rebuilt
var lastID = $select.data('select-id');
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.data('select-id', null).removeClass('initialized');
return;
}
var uniqueID = Materialize.guid();
$select.data('select-id', uniqueID);
var wrapper = $('<div class="select-wrapper"></div>');
wrapper.addClass($select.attr('class'));
var options = $('<ul id="select-options-' + uniqueID+'" class="dropdown-content select-dropdown"></ul>');
var selectOptions = $select.children('option');
var label;
if ($select.find('option:selected') !== undefined) {
label = $select.find('option:selected');
}
else {
label = options.first();
}
// Create Dropdown structure
selectOptions.each(function () {
// Add disabled attr if disabled
options.append($('<li class="' + (($(this).is(':disabled')) ? 'disabled' : '') + '"><span>' + $(this).html() + '</span></li>'));
});
options.find('li').each(function (i) {
var $curr_select = $select;
$(this).click(function () {
// Check if option element is disabled
if (!$(this).hasClass('disabled')) {
$curr_select.find('option').eq(i).prop('selected', true);
// Trigger onchange() event
$curr_select.trigger('change');
$curr_select.siblings('input.select-dropdown').val($(this).text());
if (typeof callback !== 'undefined') callback();
}
});
});
// Wrap Elements
$select.wrap(wrapper);
// Add Select Display Element
var dropdownIcon = $('<span class="caret">▼</span>');
if ( $select.is(':disabled') )
dropdownIcon.addClass('disabled');
// escape double quotes
var sanitizedLabelHtml = label.html().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);
$('body').append(options);
// Check if section element is disabled
if (!$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(){
$(this).trigger('open');
label = $(this).val();
selectedOption = options.find('li').filter(function() {
return $(this).text().toLowerCase() === label.toLowerCase();
})[0];
activateOption(options, selectedOption);
});
$newSelect.on('blur', function(){
$(this).trigger('close');
});
// Make option as selected and scroll to selected position
activateOption = function(collection, newOption) {
collection.find('li.active').removeClass('active');
$(newOption).addClass('active');
collection.scrollTo(newOption);
};
// Allow user to search by typing
// this array is cleared after 1 second
filterQuery = [];
onKeyDown = function(event){
// TAB - switch to another input
if(event.which == 9){
$newSelect.trigger('close');
return;
}
// ARROW DOWN WHEN SELECT IS CLOSED - open select options
if(event.which == 40 && !options.is(":visible")){
$newSelect.trigger('open');
return;
}
// ENTER WHEN SELECT IS CLOSED - submit form
if(event.which == 13 && !options.is(":visible")){
return;
}
event.preventDefault();
// CASE WHEN USER TYPE LETTERS
letter = String.fromCharCode(event.which).toLowerCase();
var nonLetters = [9,13,27,38,40];
if (letter && (nonLetters.indexOf(event.which) === -1)){
filterQuery.push(letter);
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(event.which == 13){
activeOption = options.find('li.active:not(.disabled)')[0];
if(activeOption){
$(activeOption).trigger('click');
$newSelect.trigger('close');
}
}
// ARROW DOWN - move to next not disabled option
if(event.which == 40){
newOption = options.find('li.active').next('li:not(.disabled)')[0];
if(newOption){
activateOption(options, newOption);
}
}
// ESC - close options
if(event.which == 27){
$newSelect.trigger('close');
}
// ARROW UP - move to previous not disabled option
if(event.which == 38){
newOption = options.find('li.active').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);
});
};
}( jQuery ));