app/assets/javascripts/modules/dropdown.js
function AxDropdown() {
}
AxDropdown.prototype = (function() {
var closeAllSelect = function(elmnt) {
/* A function that will close all select boxes in the document,
except the current select box: */
var x, y, i, arrNo = [];
x = document.getElementsByClassName('ax-select-items');
y = document.getElementsByClassName('ax-select-selected');
for (i = 0; i < y.length; i++) {
if (elmnt == y[i]) {
arrNo.push(i)
} else {
y[i].classList.remove('ax-select-arrow-active');
}
}
for (i = 0; i < x.length; i++) {
if (arrNo.indexOf(i)) {
x[i].classList.add('ax-select-hide');
}
}
}
return {
constructor: AxDropdown,
init: function() {
var selected = false,
x = document.getElementsByClassName('ax-select-dropdown'),
i = 0,
j, selElmnt, a, b, c, y;
while (i < x.length) {
selElmnt = x[i].getElementsByTagName('select')[0];
/* For each element, create a new DIV that will act as the selected item: */
a = document.createElement('DIV');
a.setAttribute('class', 'ax-select-selected placeholder');
a.innerHTML = selElmnt.options[selElmnt.selectedIndex].innerHTML;
x[i].appendChild(a);
/* For each element, create a new DIV that will contain the option list: */
b = document.createElement('DIV');
b.setAttribute('class', 'ax-select-items ax-select-hide');
j = 1;
while (j < selElmnt.length) {
/* For each option in the original select element,
create a new DIV that will act as an option item: */
c = document.createElement('DIV');
c.innerHTML = selElmnt.options[j].innerHTML;
c.addEventListener('click', function(e) {
/* When an item is clicked, update the original select box,
and the selected item: */
var y, i, k, s, h;
s = this.parentNode.parentNode.getElementsByTagName('select')[0];
h = this.parentNode.previousSibling;
for (i = 0; i < s.length; i++) {
if (s.options[i].innerHTML == this.innerHTML) {
s.selectedIndex = i;
h.innerHTML = this.innerHTML;
y = this.parentNode.getElementsByClassName('ax-same-as-selected');
for (k = 0; k < y.length; k++) {
y[k].removeAttribute('class');
}
this.setAttribute('class', 'ax-same-as-selected');
break;
}
}
h.click();
h.setAttribute('class', 'ax-select-selected');
$(e.currentTarget).parent().siblings('select').children("[value='" + this.innerHTML + "']").trigger('change');
y = document.getElementsByClassName('ax-select-selected');
return;
});
b.appendChild(c);
j++;
}
x[i].appendChild(b);
a.addEventListener('click', function(e) {
/* When the select box is clicked, close any other select boxes,
and open/close the current select box: */
e.stopPropagation();
closeAllSelect(this);
this.nextSibling.classList.toggle('ax-select-hide');
this.classList.toggle('ax-select-arrow-active');
});
i++;
}
/* If the user clicks anywhere outside the select box,
then close all select boxes: */
document.addEventListener('click', closeAllSelect);
}
};
})();