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(function() {
var SOURCES = window.TEXT_VARIABLES.sources;
window.Lazyload.js(SOURCES.jquery, function() {
function swiper(options) {
var $window = $(window), $root = this, $swiperWrapper, $swiperSlides, $swiperButtonPrev, $swiperButtonNext,
initialSlide, animation, onChange, onChangeEnd,
rootWidth, count, preIndex, curIndex, translateX, CRITICAL_ANGLE = Math.PI / 3;
function setOptions(options) {
var _options = options || {};
initialSlide = _options.initialSlide || 0;
animation = _options.animation === undefined && true;
onChange = onChange || _options.onChange;
onChangeEnd = onChangeEnd || _options.onChangeEnd;
}
function init() {
$swiperWrapper = $root.find('.swiper__wrapper');
$swiperSlides = $root.find('.swiper__slide');
$swiperButtonPrev = $root.find('.swiper__button--prev');
$swiperButtonNext = $root.find('.swiper__button--next');
animation && $swiperWrapper.addClass('swiper__wrapper--animation');
calc(true);
}
function preCalc() {
rootWidth = $root.width();
count = $swiperWrapper.children('.swiper__slide').length;
if (count < 2) {
$swiperButtonPrev.addClass('d-none');
$swiperButtonNext.addClass('d-none');
}
curIndex = initialSlide || 0;
translateX = getTranslateXFromCurIndex();
}
var calc = (function() {
var preAnimation, $swiperSlide, $preSwiperSlide;
return function (needPreCalc, params) {
needPreCalc && preCalc();
var _animation = (params && params.animation !== undefined) ? params.animation : animation;
if (preAnimation === undefined || preAnimation !== _animation) {
preAnimation = _animation ? $swiperWrapper.addClass('swiper__wrapper--animation') :
$swiperWrapper.removeClass('swiper__wrapper--animation');
}
if (preIndex !== curIndex) {
($preSwiperSlide = $swiperSlides.eq(preIndex)).removeClass('active');
($swiperSlide = $swiperSlides.eq(curIndex)).addClass('active');
onChange && onChange(curIndex, $swiperSlides.eq(curIndex), $swiperSlide, $preSwiperSlide);
if (onChangeEnd) {
if (_animation) {
setTimeout(function() {
onChangeEnd(curIndex, $swiperSlides.eq(curIndex), $swiperSlide, $preSwiperSlide);
}, 400);
} else {
onChangeEnd(curIndex, $swiperSlides.eq(curIndex), $swiperSlide, $preSwiperSlide);
}
}
preIndex = curIndex;
}
$swiperWrapper.css('transform', 'translate(' + translateX + 'px, 0)');
if (count > 1) {
if (curIndex <= 0) {
$swiperButtonPrev.addClass('disabled');
} else {
$swiperButtonPrev.removeClass('disabled');
}
if (curIndex >= count - 1) {
$swiperButtonNext.addClass('disabled');
} else {
$swiperButtonNext.removeClass('disabled');
}
}
};
})();
function getTranslateXFromCurIndex() {
return curIndex <= 0 ? 0 : - rootWidth * curIndex;
}
function moveToIndex(index ,params) {
preIndex = curIndex;
curIndex = index;
translateX = getTranslateXFromCurIndex();
calc(false, params);
}
function move(type) {
var nextIndex = curIndex, unstableTranslateX;
if (type === 'prev') {
nextIndex > 0 && nextIndex--;
} else if (type === 'next') {
nextIndex < count - 1 && nextIndex++;
}
if (type === 'cur') {
moveToIndex(curIndex, { animation: true });
return;
}
unstableTranslateX = translateX % rootWidth !== 0;
if (nextIndex !== curIndex || unstableTranslateX) {
unstableTranslateX ? moveToIndex(nextIndex, { animation: true }) : moveToIndex(nextIndex);
}
}
setOptions(options);
init();
preIndex = curIndex;
$swiperButtonPrev.on('click', function(e) {
e.stopPropagation();
move('prev');
});
$swiperButtonNext.on('click', function(e) {
e.stopPropagation();
move('next');
});
$window.on('resize', function() {
calc(true, { animation: false });
});
(function() {
var pageX, pageY, velocityX, preTranslateX = translateX, timeStamp, touching;
function handleTouchstart(e) {
var point = e.touches ? e.touches[0] : e;
pageX = point.pageX;
pageY = point.pageY;
velocityX = 0;
preTranslateX = translateX;
}
function handleTouchmove(e) {
if (e.touches && e.touches.length > 1) {
return;
}
var point = e.touches ? e.touches[0] : e;
var deltaX = point.pageX - pageX;
var deltaY = point.pageY - pageY;
velocityX = deltaX / (e.timeStamp - timeStamp);
timeStamp = e.timeStamp;
if (e.cancelable && Math.abs(Math.atan(deltaY / deltaX)) < CRITICAL_ANGLE) {
touching = true;
translateX += deltaX;
calc(false, { animation: false });
}
pageX = point.pageX;
pageY = point.pageY;
}
function handleTouchend() {
touching = false;
var deltaX = translateX - preTranslateX;
var distance = deltaX + velocityX * rootWidth;
if (Math.abs(distance) > rootWidth / 2) {
distance > 0 ? move('prev') : move('next');
} else {
move('cur');
}
}
$swiperWrapper.on('touchstart', handleTouchstart);
$swiperWrapper.on('touchmove', handleTouchmove);
$swiperWrapper.on('touchend', handleTouchend);
$swiperWrapper.on('touchcancel', handleTouchend);
(function() {
var pressing = false, moved = false;
$swiperWrapper.on('mousedown', function(e) {
pressing = true; handleTouchstart(e);
});
$swiperWrapper.on('mousemove', function(e) {
pressing && (e.preventDefault(), moved = true, handleTouchmove(e));
});
$swiperWrapper.on('mouseup', function(e) {
pressing && (pressing = false, handleTouchend(e));
});
$swiperWrapper.on('mouseleave', function(e) {
pressing && (pressing = false, handleTouchend(e));
});
$swiperWrapper.on('click', function(e) {
moved && (e.stopPropagation(), moved = false);
});
})();
$root.on('touchmove', function(e) {
if (e.cancelable & touching) {
e.preventDefault();
}
});
})();
return {
setOptions: setOptions,
previous: function(){
move('prev');
},
next: function(){
move('next');
},
refresh: function() {
calc(true, { animation: false });
}
};
}
$.fn.swiper = swiper;
});
})();
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