swiper
Version:
Most modern mobile touch slider and framework with hardware accelerated transitions
216 lines (206 loc) • 11 kB
JavaScript
/*=========================
Effects
===========================*/
s.effects = {
fade: {
fadeIndex: null,
setTranslate: function () {
for (var i = 0; i < s.slides.length; i++) {
var slide = s.slides.eq(i);
var offset = slide[0].swiperSlideOffset;
var tx = -offset;
if (!s.params.virtualTranslate) tx = tx - s.translate;
var ty = 0;
if (!isH()) {
ty = tx;
tx = 0;
}
var slideOpacity = s.params.fade.crossFade ?
Math.max(1 - Math.abs(slide[0].progress), 0) :
1 + Math.min(Math.max(slide[0].progress, -1), 0);
if (slideOpacity > 0 && slideOpacity < 1) {
s.effects.fade.fadeIndex = i;
}
slide
.css({
opacity: slideOpacity
})
.transform('translate3d(' + tx + 'px, ' + ty + 'px, 0px)');
}
},
setTransition: function (duration) {
s.slides.transition(duration);
if (s.params.virtualTranslate && duration !== 0) {
var fadeIndex = s.effects.fade.fadeIndex !== null ? s.effects.fade.fadeIndex : s.activeIndex;
if (!(s.params.loop || s.params.fade.crossFade) && fadeIndex === 0) {
fadeIndex = s.slides.length - 1;
}
s.slides.eq(fadeIndex).transitionEnd(function () {
if (!s) return;
var triggerEvents = ['webkitTransitionEnd', 'transitionend', 'oTransitionEnd', 'MSTransitionEnd', 'msTransitionEnd'];
for (var i = 0; i < triggerEvents.length; i++) {
s.wrapper.trigger(triggerEvents[i]);
}
});
}
}
},
cube: {
setTranslate: function () {
var wrapperRotate = 0, cubeShadow;
if (s.params.cube.shadow) {
if (isH()) {
cubeShadow = s.wrapper.find('.swiper-cube-shadow');
if (cubeShadow.length === 0) {
cubeShadow = $('<div class="swiper-cube-shadow"></div>');
s.wrapper.append(cubeShadow);
}
cubeShadow.css({height: s.width + 'px'});
}
else {
cubeShadow = s.container.find('.swiper-cube-shadow');
if (cubeShadow.length === 0) {
cubeShadow = $('<div class="swiper-cube-shadow"></div>');
s.container.append(cubeShadow);
}
}
}
for (var i = 0; i < s.slides.length; i++) {
var slide = s.slides.eq(i);
var slideAngle = i * 90;
var round = Math.floor(slideAngle / 360);
if (s.rtl) {
slideAngle = -slideAngle;
round = Math.floor(-slideAngle / 360);
}
var progress = Math.max(Math.min(slide[0].progress, 1), -1);
var tx = 0, ty = 0, tz = 0;
if (i % 4 === 0) {
tx = - round * 4 * s.size;
tz = 0;
}
else if ((i - 1) % 4 === 0) {
tx = 0;
tz = - round * 4 * s.size;
}
else if ((i - 2) % 4 === 0) {
tx = s.size + round * 4 * s.size;
tz = s.size;
}
else if ((i - 3) % 4 === 0) {
tx = - s.size;
tz = 3 * s.size + s.size * 4 * round;
}
if (s.rtl) {
tx = -tx;
}
if (!isH()) {
ty = tx;
tx = 0;
}
var transform = 'rotateX(' + (isH() ? 0 : -slideAngle) + 'deg) rotateY(' + (isH() ? slideAngle : 0) + 'deg) translate3d(' + tx + 'px, ' + ty + 'px, ' + tz + 'px)';
if (progress <= 1 && progress > -1) {
wrapperRotate = i * 90 + progress * 90;
if (s.rtl) wrapperRotate = -i * 90 - progress * 90;
}
slide.transform(transform);
if (s.params.cube.slideShadows) {
//Set shadows
var shadowBefore = isH() ? slide.find('.swiper-slide-shadow-left') : slide.find('.swiper-slide-shadow-top');
var shadowAfter = isH() ? slide.find('.swiper-slide-shadow-right') : slide.find('.swiper-slide-shadow-bottom');
if (shadowBefore.length === 0) {
shadowBefore = $('<div class="swiper-slide-shadow-' + (isH() ? 'left' : 'top') + '"></div>');
slide.append(shadowBefore);
}
if (shadowAfter.length === 0) {
shadowAfter = $('<div class="swiper-slide-shadow-' + (isH() ? 'right' : 'bottom') + '"></div>');
slide.append(shadowAfter);
}
var shadowOpacity = slide[0].progress;
if (shadowBefore.length) shadowBefore[0].style.opacity = -slide[0].progress;
if (shadowAfter.length) shadowAfter[0].style.opacity = slide[0].progress;
}
}
s.wrapper.css({
'-webkit-transform-origin': '50% 50% -' + (s.size / 2) + 'px',
'-moz-transform-origin': '50% 50% -' + (s.size / 2) + 'px',
'-ms-transform-origin': '50% 50% -' + (s.size / 2) + 'px',
'transform-origin': '50% 50% -' + (s.size / 2) + 'px'
});
if (s.params.cube.shadow) {
if (isH()) {
cubeShadow.transform('translate3d(0px, ' + (s.width / 2 + s.params.cube.shadowOffset) + 'px, ' + (-s.width / 2) + 'px) rotateX(90deg) rotateZ(0deg) scale(' + (s.params.cube.shadowScale) + ')');
}
else {
var shadowAngle = Math.abs(wrapperRotate) - Math.floor(Math.abs(wrapperRotate) / 90) * 90;
var multiplier = 1.5 - (Math.sin(shadowAngle * 2 * Math.PI / 360) / 2 + Math.cos(shadowAngle * 2 * Math.PI / 360) / 2);
var scale1 = s.params.cube.shadowScale,
scale2 = s.params.cube.shadowScale / multiplier,
offset = s.params.cube.shadowOffset;
cubeShadow.transform('scale3d(' + scale1 + ', 1, ' + scale2 + ') translate3d(0px, ' + (s.height / 2 + offset) + 'px, ' + (-s.height / 2 / scale2) + 'px) rotateX(-90deg)');
}
}
var zFactor = (s.isSafari || s.isUiWebView) ? (-s.size / 2) : 0;
s.wrapper.transform('translate3d(0px,0,' + zFactor + 'px) rotateX(' + (isH() ? 0 : wrapperRotate) + 'deg) rotateY(' + (isH() ? -wrapperRotate : 0) + 'deg)');
},
setTransition: function (duration) {
s.slides.transition(duration).find('.swiper-slide-shadow-top, .swiper-slide-shadow-right, .swiper-slide-shadow-bottom, .swiper-slide-shadow-left').transition(duration);
if (s.params.cube.shadow && !isH()) {
s.container.find('.swiper-cube-shadow').transition(duration);
}
}
},
coverflow: {
setTranslate: function () {
var transform = s.translate;
var center = isH() ? -transform + s.width / 2 : -transform + s.height / 2;
var rotate = isH() ? s.params.coverflow.rotate: -s.params.coverflow.rotate;
var translate = s.params.coverflow.depth;
//Each slide offset from center
for (var i = 0, length = s.slides.length; i < length; i++) {
var slide = s.slides.eq(i);
var slideSize = s.slidesSizesGrid[i];
var slideOffset = slide[0].swiperSlideOffset;
var offsetMultiplier = (center - slideOffset - slideSize / 2) / slideSize * s.params.coverflow.modifier;
var rotateY = isH() ? rotate * offsetMultiplier : 0;
var rotateX = isH() ? 0 : rotate * offsetMultiplier;
// var rotateZ = 0
var translateZ = -translate * Math.abs(offsetMultiplier);
var translateY = isH() ? 0 : s.params.coverflow.stretch * (offsetMultiplier);
var translateX = isH() ? s.params.coverflow.stretch * (offsetMultiplier) : 0;
//Fix for ultra small values
if (Math.abs(translateX) < 0.001) translateX = 0;
if (Math.abs(translateY) < 0.001) translateY = 0;
if (Math.abs(translateZ) < 0.001) translateZ = 0;
if (Math.abs(rotateY) < 0.001) rotateY = 0;
if (Math.abs(rotateX) < 0.001) rotateX = 0;
var slideTransform = 'translate3d(' + translateX + 'px,' + translateY + 'px,' + translateZ + 'px) rotateX(' + rotateX + 'deg) rotateY(' + rotateY + 'deg)';
slide.transform(slideTransform);
slide[0].style.zIndex = -Math.abs(Math.round(offsetMultiplier)) + 1;
if (s.params.coverflow.slideShadows) {
//Set shadows
var shadowBefore = isH() ? slide.find('.swiper-slide-shadow-left') : slide.find('.swiper-slide-shadow-top');
var shadowAfter = isH() ? slide.find('.swiper-slide-shadow-right') : slide.find('.swiper-slide-shadow-bottom');
if (shadowBefore.length === 0) {
shadowBefore = $('<div class="swiper-slide-shadow-' + (isH() ? 'left' : 'top') + '"></div>');
slide.append(shadowBefore);
}
if (shadowAfter.length === 0) {
shadowAfter = $('<div class="swiper-slide-shadow-' + (isH() ? 'right' : 'bottom') + '"></div>');
slide.append(shadowAfter);
}
if (shadowBefore.length) shadowBefore[0].style.opacity = offsetMultiplier > 0 ? offsetMultiplier : 0;
if (shadowAfter.length) shadowAfter[0].style.opacity = (-offsetMultiplier) > 0 ? -offsetMultiplier : 0;
}
}
//Set correct perspective for IE10
if (s.browser.ie) {
var ws = s.wrapper[0].style;
ws.perspectiveOrigin = center + 'px 50%';
}
},
setTransition: function (duration) {
s.slides.transition(duration).find('.swiper-slide-shadow-top, .swiper-slide-shadow-right, .swiper-slide-shadow-bottom, .swiper-slide-shadow-left').transition(duration);
}
}
};