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Fix for slick slider with rows #4099

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Fix for slick slider with rows #4099

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85 changes: 75 additions & 10 deletions slick/slick.js
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Original file line number Diff line number Diff line change
Expand Up @@ -201,9 +201,9 @@

Slick.prototype.addSlide = Slick.prototype.slickAdd = function(markup, index, addBefore) {

var _ = this;
var _ = this, originalSlides, emptyChildDiv = false;

if (typeof(index) === 'boolean') {
if (typeof (index) === 'boolean') {
addBefore = index;
index = null;
} else if (index < 0 || (index >= _.slideCount)) {
Expand All @@ -212,7 +212,9 @@

_.unload();

if (typeof(index) === 'number') {
originalSlides = _.$slider.children();

if (typeof (index) === 'number') {
if (index === 0 && _.$slides.length === 0) {
$(markup).appendTo(_.$slideTrack);
} else if (addBefore) {
Expand All @@ -224,7 +226,29 @@
if (addBefore === true) {
$(markup).prependTo(_.$slideTrack);
} else {
$(markup).appendTo(_.$slideTrack);
// $(markup).appendTo(_.$slideTrack);
if (_.options.rows > 0) {
for (let index = 0; index < _.$slideTrack[0].lastChild.children.length; index++) {
const element = _.$slideTrack[0].lastChild.children[index];
if ($(element).children().length == 0) {
_.$slideTrack[0].lastChild.children[index].append(markup);
emptyChildDiv = true;
break;
}
}
if (!emptyChildDiv) {
var row = document.createElement('div');
let firstSlide = document.createElement('div');
firstSlide.append(markup);
row.append(firstSlide);
for (let c = 1; c < _.options.rows; c++) {
var slideDiv = document.createElement('div');
row.appendChild(slideDiv);
}
emptyChildDiv = false;
$(row).appendTo(_.$slideTrack);
}
}
}
}

Expand All @@ -234,12 +258,20 @@

_.$slideTrack.append(_.$slides);

_.$slides.each(function(index, element) {
_.$slider.children().children().children()
.css({
'width': (100 / _.options.slidesPerRow) + '%',
'display': 'inline-block'
});

_.$slides.each(function (index, element) {
$(element).attr('data-slick-index', index);
});

_.$slidesCache = _.$slides;

_.$slider.trigger('afterChange', [_, index]);

_.reinit();

};
Expand Down Expand Up @@ -1988,16 +2020,21 @@

Slick.prototype.removeSlide = Slick.prototype.slickRemove = function(index, removeBefore, removeAll) {

var _ = this;
var _ = this, slideCountParent;

if (typeof(index) === 'boolean') {
slideCountParent = $(this.$slideTrack[0].parentElement)[0].parentElement.getAttribute("slideslength");
if (slideCountParent) {
_.slideCount = slideCountParent;
}

if (typeof (index) === 'boolean') {
removeBefore = index;
index = removeBefore === true ? 0 : _.slideCount - 1;
} else {
index = removeBefore === true ? --index : index;
}

if (_.slideCount < 1 || index < 0 || index > _.slideCount - 1) {
if (_.slideCount < 1 || index < 0 || index > _.slideCount) {
return false;
}

Expand All @@ -2006,7 +2043,35 @@
if (removeAll === true) {
_.$slideTrack.children().remove();
} else {
_.$slideTrack.children(this.options.slide).eq(index).remove();

if (_.options.rows > 1) {
let a = index, b = _.slideCount, c = _.options.rows;
let numRowLocation;
let numColumnLocation;

for (let i = 1; i <= _.$slideTrack[0].childElementCount; i++) {
if (index <= c * i) {
numColumnLocation = i - 1;
}
}

let rest = (index + 1) % c;
if (rest == 0) {
numRowLocation = c - 1;
}
else {
numRowLocation = rest - 1;
}

_.$slideTrack[0].children[numColumnLocation].children[numRowLocation].firstElementChild.remove();
if (numRowLocation === 0) {
_.$slideTrack[0].children[numColumnLocation].remove();
}
}
else {
_.$slideTrack.children(this.options.slide).eq(index).remove();
}

}

_.$slides = _.$slideTrack.children(this.options.slide);
Expand All @@ -2016,7 +2081,7 @@
_.$slideTrack.append(_.$slides);

_.$slidesCache = _.$slides;

_.$slider.trigger('afterChange', [_, index]);
_.reinit();

};
Expand Down