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added alternativeAdaptiveHeight option #3847

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added alternativeAdaptiveHeight option #3847

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19 changes: 19 additions & 0 deletions slick/slick.js
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Original file line number Diff line number Diff line change
Expand Up @@ -40,6 +40,8 @@
_.defaults = {
accessibility: true,
adaptiveHeight: false,
// add alternative adaptive height option
alternativeAdaptiveHeight: false,
appendArrows: $(element),
appendDots: $(element),
arrows: true,
Expand Down Expand Up @@ -2087,6 +2089,23 @@
var offset = _.$slides.first().outerWidth(true) - _.$slides.first().width();
if (_.options.variableWidth === false) _.$slideTrack.children('.slick-slide').width(_.slideWidth - offset);

// adds top padding to center picture
if (_.options.alternativeAdaptiveHeight === true) {
var newTopPadding = 0;
// adds top padding to center picture for all images except first image
if (_.currentSlide !== 0) {
newTopPadding = Math.ceil((_.listHeight - _.$slides.eq([_.currentSlide]).height()) / 2);
// adds arrow size if image is padded
if (newTopPadding !== 0) {
newTopPadding += _.$nextArrow.height()
}
// adds padding
_.$slides.eq([_.currentSlide]).css({
'padding-top': newTopPadding + 'px',
});
}
}

};

Slick.prototype.setFade = function() {
Expand Down