1 | import createShadow from '../../shared/create-shadow.js';
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2 | import effectInit from '../../shared/effect-init.js';
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3 | import effectTarget from '../../shared/effect-target.js';
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4 | import effectVirtualTransitionEnd from '../../shared/effect-virtual-transition-end.js';
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5 | export default function EffectCards(_ref) {
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6 | let {
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7 | swiper,
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8 | extendParams,
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9 | on
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10 | } = _ref;
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11 | extendParams({
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12 | cardsEffect: {
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13 | slideShadows: true,
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14 | transformEl: null,
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15 | rotate: true
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16 | }
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17 | });
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18 |
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19 | const setTranslate = () => {
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20 | const {
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21 | slides,
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22 | activeIndex
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23 | } = swiper;
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24 | const params = swiper.params.cardsEffect;
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25 | const {
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26 | startTranslate,
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27 | isTouched
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28 | } = swiper.touchEventsData;
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29 | const currentTranslate = swiper.translate;
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30 |
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31 | for (let i = 0; i < slides.length; i += 1) {
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32 | const $slideEl = slides.eq(i);
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33 | const slideProgress = $slideEl[0].progress;
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34 | const progress = Math.min(Math.max(slideProgress, -4), 4);
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35 | let offset = $slideEl[0].swiperSlideOffset;
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36 |
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37 | if (swiper.params.centeredSlides && !swiper.params.cssMode) {
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38 | swiper.$wrapperEl.transform(`translateX(${swiper.minTranslate()}px)`);
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39 | }
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40 |
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41 | if (swiper.params.centeredSlides && swiper.params.cssMode) {
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42 | offset -= slides[0].swiperSlideOffset;
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43 | }
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44 |
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45 | let tX = swiper.params.cssMode ? -offset - swiper.translate : -offset;
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46 | let tY = 0;
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47 | const tZ = -100 * Math.abs(progress);
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48 | let scale = 1;
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49 | let rotate = -2 * progress;
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50 | let tXAdd = 8 - Math.abs(progress) * 0.75;
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51 | const slideIndex = swiper.virtual && swiper.params.virtual.enabled ? swiper.virtual.from + i : i;
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52 | const isSwipeToNext = (slideIndex === activeIndex || slideIndex === activeIndex - 1) && progress > 0 && progress < 1 && (isTouched || swiper.params.cssMode) && currentTranslate < startTranslate;
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53 | const isSwipeToPrev = (slideIndex === activeIndex || slideIndex === activeIndex + 1) && progress < 0 && progress > -1 && (isTouched || swiper.params.cssMode) && currentTranslate > startTranslate;
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54 |
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55 | if (isSwipeToNext || isSwipeToPrev) {
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56 | const subProgress = (1 - Math.abs((Math.abs(progress) - 0.5) / 0.5)) ** 0.5;
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57 | rotate += -28 * progress * subProgress;
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58 | scale += -0.5 * subProgress;
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59 | tXAdd += 96 * subProgress;
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60 | tY = `${-25 * subProgress * Math.abs(progress)}%`;
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61 | }
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62 |
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63 | if (progress < 0) {
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64 |
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65 | tX = `calc(${tX}px + (${tXAdd * Math.abs(progress)}%))`;
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66 | } else if (progress > 0) {
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67 |
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68 | tX = `calc(${tX}px + (-${tXAdd * Math.abs(progress)}%))`;
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69 | } else {
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70 | tX = `${tX}px`;
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71 | }
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72 |
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73 | if (!swiper.isHorizontal()) {
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74 | const prevY = tY;
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75 | tY = tX;
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76 | tX = prevY;
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77 | }
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78 |
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79 | const scaleString = progress < 0 ? `${1 + (1 - scale) * progress}` : `${1 - (1 - scale) * progress}`;
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80 | const transform = `
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81 | translate3d(${tX}, ${tY}, ${tZ}px)
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82 | rotateZ(${params.rotate ? rotate : 0}deg)
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83 | scale(${scaleString})
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84 | `;
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85 |
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86 | if (params.slideShadows) {
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87 |
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88 | let $shadowEl = $slideEl.find('.swiper-slide-shadow');
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89 |
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90 | if ($shadowEl.length === 0) {
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91 | $shadowEl = createShadow(params, $slideEl);
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92 | }
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93 |
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94 | if ($shadowEl.length) $shadowEl[0].style.opacity = Math.min(Math.max((Math.abs(progress) - 0.5) / 0.5, 0), 1);
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95 | }
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96 |
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97 | $slideEl[0].style.zIndex = -Math.abs(Math.round(slideProgress)) + slides.length;
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98 | const $targetEl = effectTarget(params, $slideEl);
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99 | $targetEl.transform(transform);
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100 | }
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101 | };
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102 |
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103 | const setTransition = duration => {
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104 | const {
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105 | transformEl
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106 | } = swiper.params.cardsEffect;
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107 | const $transitionElements = transformEl ? swiper.slides.find(transformEl) : swiper.slides;
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108 | $transitionElements.transition(duration).find('.swiper-slide-shadow').transition(duration);
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109 | effectVirtualTransitionEnd({
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110 | swiper,
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111 | duration,
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112 | transformEl
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113 | });
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114 | };
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115 |
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116 | effectInit({
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117 | effect: 'cards',
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118 | swiper,
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119 | on,
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120 | setTranslate,
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121 | setTransition,
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122 | perspective: () => true,
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123 | overwriteParams: () => ({
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124 | watchSlidesProgress: true,
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125 | virtualTranslate: !swiper.params.cssMode
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126 | })
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127 | });
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128 | } |
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