Isotope: Combined multiple checkbox and searchbox filtering - checkbox

Question

I'm trying to combine the Isotope multiple checkbox filtering with a searchbox.
I used the example with the checkbox filters from here and tried to implement the searchbox but with no luck.
Just the checkbox filtering works well. I think i'm close to the solution but my javascript skills are at a very beginner level.
I commented out the section of what i've tried to implement.
Thank you for some hints
// quick search regex
var qsRegex;
var $grid;
var filters = {};
var $grid = $('.grid');
//set initial options
$grid.isotope({
layoutMode: 'fitRows'
});
$(function() {
$grid = $('#grid');
$grid.isotope();
// do stuff when checkbox change
$('#options').on('change', function(jQEvent) {
var $checkbox = $(jQEvent.target);
manageCheckbox($checkbox);
var comboFilter = getComboFilter(filters);
/*var searchResult = qsRegex ? $(this).text().match(qsRegex) : true;
var filterResult = function() {
return comboFilter && searchResult;
}*/
$grid.isotope({
filter: comboFilter //or filterResult
});
});
});
function getComboFilter(filters) {
var i = 0;
var comboFilters = [];
var message = [];
for (var prop in filters) {
message.push(filters[prop].join(' '));
var filterGroup = filters[prop];
// skip to next filter group if it doesn't have any values
if (!filterGroup.length) {
continue;
}
if (i === 0) {
// copy to new array
comboFilters = filterGroup.slice(0);
} else {
var filterSelectors = [];
// copy to fresh array
var groupCombo = comboFilters.slice(0); // [ A, B ]
// merge filter Groups
for (var k = 0, len3 = filterGroup.length; k < len3; k++) {
for (var j = 0, len2 = groupCombo.length; j < len2; j++) {
filterSelectors.push(groupCombo[j] + filterGroup[k]); // [ 1, 2 ]
}
}
// apply filter selectors to combo filters for next group
comboFilters = filterSelectors;
}
i++;
}
var comboFilter = comboFilters.join(', ');
return comboFilter;
}
// use value of search field to filter
var $quicksearch = $('.quicksearch').keyup(debounce(function() {
qsRegex = new RegExp($quicksearch.val(), 'gi');
$grid.isotope();
}, ));
// debounce so filtering doesn't happen every millisecond
function debounce(fn, threshold) {
var timeout;
threshold = threshold || 100;
return function debounced() {
clearTimeout(timeout);
var args = arguments;
var _this = this;
function delayed() {
fn.apply(_this, args);
}
timeout = setTimeout(delayed, threshold);
}
}
function manageCheckbox($checkbox) {
var checkbox = $checkbox[0];
var group = $checkbox.parents('.option-set').attr('data-group');
// create array for filter group, if not there yet
var filterGroup = filters[group];
if (!filterGroup) {
filterGroup = filters[group] = [];
}
var isAll = $checkbox.hasClass('all');
// reset filter group if the all box was checked
if (isAll) {
delete filters[group];
if (!checkbox.checked) {
checkbox.checked = 'checked';
}
}
// index of
var index = $.inArray(checkbox.value, filterGroup);
if (checkbox.checked) {
var selector = isAll ? 'input' : 'input.all';
$checkbox.siblings(selector).prop('checked', false);
if (!isAll && index === -1) {
// add filter to group
filters[group].push(checkbox.value);
}
} else if (!isAll) {
// remove filter from group
filters[group].splice(index, 1);
// if unchecked the last box, check the all
if (!$checkbox.siblings('[checked]').length) {
$checkbox.parents('.option-set').find(selector).prop('checked', false);
}
}

Answer 1

I found the solution by myself, but i had to add a second function for returning the searchresult. Otherwise the search function is triggered only after using a checkbox or leaving the search box input field.
How could i avoid this redundand code?
JS:
// use value of search field to filter
var $quicksearch = $('.quicksearch').keyup(debounce(function() {
qsRegex = new RegExp($quicksearch.val(), 'gi');
$grid.isotope();
}, 200));
$(function() {
$grid = $('#grid');
$grid.isotope({
filter: function() {
var searchResult = qsRegex ? $(this).text().match(qsRegex) : true;
return searchResult;
}
});
// do stuff when checkbox change
$('#options').on('change', function(jQEvent) {
var $checkbox = $(jQEvent.target);
manageCheckbox($checkbox);
var comboFilter = getComboFilter(filters);
$grid.isotope({
filter: function() {
var buttonResult = comboFilter ? $(this).is(comboFilter) : true;
var searchResult = qsRegex ? $(this).text().match(qsRegex) : true;
return buttonResult && searchResult;
}
});
});
});