|
| 1 | +; |
| 2 | +(function($) { |
| 3 | + var SliderImgFunc = function(imgConter) { |
| 4 | + var _this = this; |
| 5 | + |
| 6 | + _this.touchObject = {}; |
| 7 | + _this.ImgSlider = imgConter; |
| 8 | + _this.touchObject.prevDomNode = true; |
| 9 | + |
| 10 | + |
| 11 | + _this.btnList = $('[node-type=btn-list]', imgConter); |
| 12 | + _this.imgUlConter = $('[node-type=img-contenter]', imgConter); |
| 13 | + _this.imgLiList = $('[node-type=img-list]', imgConter); |
| 14 | + |
| 15 | + |
| 16 | + _this.setting = { |
| 17 | + "autoAnimate": true, //是否自动播放 |
| 18 | + "btnShow": true, //是否显示图片切换按钮 |
| 19 | + "btnClick": true, //点击按钮是否切换图片 |
| 20 | + "touchMove": true, |
| 21 | + "changeTime": 3000, //图片切换时间间隔 |
| 22 | + "animateType": 'ease-in', //动画类型 |
| 23 | + "animateTime": 500, //动画完成时间mm |
| 24 | + "sweepTime": 400 //手指扫过切换图片的时间间隔 mm |
| 25 | + }; |
| 26 | + |
| 27 | + $.extend(_this.setting, _this.getUserSetting()); |
| 28 | + |
| 29 | + |
| 30 | + _this.addLiValue(); |
| 31 | + |
| 32 | + //检测是否自动播放 |
| 33 | + if (_this.setting.autoAnimate) { |
| 34 | + if (_this.imgLiList.length > 1) { |
| 35 | + _this.startAnimate(); |
| 36 | + } |
| 37 | + } |
| 38 | + |
| 39 | + //检测是都显示按钮 |
| 40 | + if (_this.setting.btnShow) { |
| 41 | + _this.showChangeBtn(); |
| 42 | + } |
| 43 | + |
| 44 | + //按钮点击事件是否可用 |
| 45 | + if (_this.setting.btnClick) { |
| 46 | + $(_this.ImgSlider).on('tap', 'li', function() { |
| 47 | + _this.stopAnimate(); |
| 48 | + _this.trigBtnIndex = $(this).find('a').text(); |
| 49 | + _this.btnChangeImg(); |
| 50 | + setTimeout(function() { |
| 51 | + _this.startAnimate(); |
| 52 | + }, 0); |
| 53 | + }); |
| 54 | + } |
| 55 | + |
| 56 | + //启用触摸事件 |
| 57 | + if (_this.setting.touchMove) { |
| 58 | + $(_this.ImgSlider).on('touchstart', 'li', function() { |
| 59 | + _this.stopAnimate(); |
| 60 | + _this.touchObject.currDomNode = this; |
| 61 | + _this.touchStart.call(_this); |
| 62 | + }); |
| 63 | + $(_this.ImgSlider).on('touchmove', 'li', function() { |
| 64 | + _this.touchMove.call(_this); |
| 65 | + }); |
| 66 | + $(_this.ImgSlider).on('touchend', 'li', function() { |
| 67 | + _this.touchEnd.call(_this); |
| 68 | + _this.startAnimate(); |
| 69 | + }); |
| 70 | + } |
| 71 | + |
| 72 | + }; |
| 73 | + |
| 74 | + SliderImgFunc.prototype = { |
| 75 | + //获取图片区域的宽度 |
| 76 | + slConWidth: function() { |
| 77 | + return this.ImgSlider.width(); |
| 78 | + }, |
| 79 | + //是否显示图片上的按钮 |
| 80 | + showChangeBtn: function() { |
| 81 | + if (this.imgLiList.length <= 1) { |
| 82 | + // this.showChangeBtn(); |
| 83 | + return false; |
| 84 | + } else { |
| 85 | + this.btnList.css({ |
| 86 | + "display": 'list-item', |
| 87 | + "list-style-type": "none" |
| 88 | + }); |
| 89 | + } |
| 90 | + }, |
| 91 | + //给包含图片的 li 添加一个数字索引 |
| 92 | + addLiValue: function() { |
| 93 | + $.each(this.imgLiList, function(i, item) { |
| 94 | + $(item).attr('value-type', i); |
| 95 | + }); |
| 96 | + }, |
| 97 | + //开始播放动画，根据容器动态获取其中的图片的容器,使用 translate3d触发 gpu 渲染动画 |
| 98 | + startAnimate: function() { |
| 99 | + var _this = this; |
| 100 | + var moveConter = _this.imgUlConter; |
| 101 | + |
| 102 | + _this.imgInterval = setInterval(function() { |
| 103 | + moveConter.animate({ |
| 104 | + translate3d: '-' + _this.slConWidth() + 'px,0,0' |
| 105 | + }, _this.setting.animateTime, _this.setting.animateType, delayAppend); |
| 106 | + }, _this.setting.changeTime); |
| 107 | + |
| 108 | + function delayAppend() { |
| 109 | + setTimeout(function() { |
| 110 | + _this.appendHtml(); |
| 111 | + }, 0); |
| 112 | + } |
| 113 | + }, |
| 114 | + appendHtml: function() { |
| 115 | + var liList = $('[node-type=img-list]', this.ImgSlider); |
| 116 | + var firstDom = liList.eq(0); |
| 117 | + |
| 118 | + this.imgUlConter.append(firstDom); |
| 119 | + this.changeBtnClass(); |
| 120 | + |
| 121 | + //初始化 ul 图片容器的值 |
| 122 | + this.imgUlConter.css('transform', 'translate3d(0,0,0)'); |
| 123 | + |
| 124 | + }, |
| 125 | + changeBtnClass: function(value) { |
| 126 | + var liList = $('[node-type=img-list]', this.ImgSlider); |
| 127 | + this.btnList.removeClass("current-btn"); |
| 128 | + this.btnList.eq(Number(liList.eq(0).attr('value-type'))).addClass('current-btn'); |
| 129 | + }, |
| 130 | + //按钮切换图片 |
| 131 | + btnChangeImg: function() { |
| 132 | + var _this = this; |
| 133 | + |
| 134 | + //触发的按钮 |
| 135 | + var trigBtnIndex = _this.trigBtnIndex - 1; |
| 136 | + var imgLiList = _this.imgLiList; |
| 137 | + var tempArray = []; |
| 138 | + |
| 139 | + // 当前所在按钮的索引 |
| 140 | + var currBtnIndex = $('[class=current-btn]', _this.ImgSlider).text() - 1; |
| 141 | + |
| 142 | + //重新获取 ul节点下图片节点的顺序 |
| 143 | + var newImgList = $('[node-type=img-list]', _this.ImgSlider); |
| 144 | + |
| 145 | + |
| 146 | + if (currBtnIndex > trigBtnIndex) { |
| 147 | + $.each(newImgList, function(index, el) { |
| 148 | + var temp = Number($(el).attr('value-type')); |
| 149 | + if (temp < currBtnIndex && temp >= trigBtnIndex) { |
| 150 | + tempArray.push(el); |
| 151 | + } |
| 152 | + }); |
| 153 | + //将图片添加的当前图片之前，并且初始化容器的样式 |
| 154 | + _this.imgUlConter.prepend($(tempArray)) |
| 155 | + .css('transform', 'translate3d(0,0,0)'); |
| 156 | + } else { |
| 157 | + $.each(imgLiList, function(i, item) { |
| 158 | + if ($(item).attr('value-type') < trigBtnIndex) { |
| 159 | + tempArray.push(item); |
| 160 | + } |
| 161 | + }); |
| 162 | + |
| 163 | + //将图片添加的当前图片之后，并且初始化容器的样式 |
| 164 | + _this.imgUlConter.append($(tempArray)) |
| 165 | + .css('transform', 'translate3d(0,0,0)'); |
| 166 | + } |
| 167 | + |
| 168 | + $(imgLiList).removeClass('current-btn'); |
| 169 | + _this.changeBtnClass(trigBtnIndex); |
| 170 | + }, |
| 171 | + |
| 172 | + //获取触摸的初始坐标 |
| 173 | + touchStart: function() { |
| 174 | + var dateTime = new Date(); |
| 175 | + |
| 176 | + this.touchObject.startX = event.touches[0].pageX; |
| 177 | + this.touchObject.startY = event.touches[0].pageY; |
| 178 | + this.touchObject.startTime = dateTime.getTime(); |
| 179 | + }, |
| 180 | + |
| 181 | + touchMove: function() { |
| 182 | + var ttb, tempMoveX, tempMoveY; |
| 183 | + var newImgList = $('[node-type=img-list]', this.ImgSlider); |
| 184 | + |
| 185 | + ttb = this.touchObject; |
| 186 | + ttb.moveX = event.touches[0].pageX; |
| 187 | + ttb.moveY = event.touches[0].pageY; |
| 188 | + |
| 189 | + ttb.tempMoveX = ttb.moveX - ttb.startX; |
| 190 | + ttb.tempMoveY = ttb.moveY - ttb.startY; |
| 191 | + |
| 192 | + if (ttb.tempMoveX > 0) { |
| 193 | + if (ttb.prevDomNode) { |
| 194 | + this.imgUlConter.prepend(newImgList.eq(newImgList.length - 1)) |
| 195 | + // .css('transform', 'translate3d(0,0,0)'); |
| 196 | + .css('transform', 'translate3d(-' + this.slConWidth() + 'px,0,0)'); |
| 197 | + ttb.prevDomNode = false; |
| 198 | + } |
| 199 | + this.moveRight(); |
| 200 | + } |
| 201 | + |
| 202 | + if (ttb.tempMoveX < 0) { |
| 203 | + this.moveLeft(); |
| 204 | + } |
| 205 | + |
| 206 | + }, |
| 207 | + |
| 208 | + touchEnd: function() { |
| 209 | + var ttb, changeWidth, tempTime; |
| 210 | + var dateTime = new Date(); |
| 211 | + |
| 212 | + ttb = this.touchObject; |
| 213 | + changeWidth = this.slConWidth() / 2; |
| 214 | + ttb.prevDomNode = true; |
| 215 | + ttb.endTime = dateTime.getTime(); |
| 216 | + tempTime = ttb.endTime - ttb.startTime; |
| 217 | + |
| 218 | + //调用 sweep判断是否切换动画或者是拖动切换 |
| 219 | + if (tempTime < this.setting.sweepTime) { |
| 220 | + this.sweepFunc(); |
| 221 | + } else { |
| 222 | + if (ttb.tempMoveX < 0) { |
| 223 | + if (Math.abs(ttb.tempMoveX) > changeWidth) { |
| 224 | + this.originLeft(); |
| 225 | + } else { |
| 226 | + this.originRight(); |
| 227 | + } |
| 228 | + } else { |
| 229 | + if (Math.abs(ttb.tempMoveX) > changeWidth) { |
| 230 | + this.originRight(); |
| 231 | + } else { |
| 232 | + this.originLeft(); |
| 233 | + } |
| 234 | + } |
| 235 | + } |
| 236 | + }, |
| 237 | + |
| 238 | + moveLeft: function() { |
| 239 | + this.imgUlConter.css('transform', 'translate3d(' + this.touchObject.tempMoveX + 'px,0,0)'); |
| 240 | + }, |
| 241 | + |
| 242 | + moveRight: function() { |
| 243 | + var moveTemp = this.slConWidth() - this.touchObject.tempMoveX; |
| 244 | + this.imgUlConter.css('transform', 'translate3d(-' + moveTemp + 'px,0,0)'); |
| 245 | + }, |
| 246 | + |
| 247 | + //扫动的函数 |
| 248 | + sweepFunc:function(){ |
| 249 | + if (this.touchObject.tempMoveX < 0) { |
| 250 | + this.originLeft(); |
| 251 | + } else { |
| 252 | + this.originRight(); |
| 253 | + } |
| 254 | + }, |
| 255 | + |
| 256 | + //因为滑动过半或者是不过半，返回的时间都应该至少是是做一次完整动画的一半时间 |
| 257 | + originRight: function() { |
| 258 | + this.imgUlConter.animate({ |
| 259 | + 'translate3d': '0,0,0' |
| 260 | + }, this.setting.animateTime / 2, this.setting.animateType); |
| 261 | + }, |
| 262 | + originLeft: function() { |
| 263 | + var _this = this; |
| 264 | + _this.imgUlConter.animate({ |
| 265 | + 'translate3d': '-' + _this.slConWidth() + 'px,0,0' |
| 266 | + }, _this.setting.animateTime / 2, _this.setting.animateType, function() { |
| 267 | + _this.appendHtml(); |
| 268 | + }); |
| 269 | + }, |
| 270 | + stopAnimate: function() { |
| 271 | + var _this = this; |
| 272 | + clearTimeout(_this.imgInterval); |
| 273 | + }, |
| 274 | + getUserSetting: function() { |
| 275 | + var userSetting = this.ImgSlider.attr('user-setting'); |
| 276 | + if (userSetting && userSetting !== '') { |
| 277 | + return $.parseJSON(userSetting); |
| 278 | + } else { |
| 279 | + return {}; |
| 280 | + } |
| 281 | + }, |
| 282 | + destoryFunc: function() { |
| 283 | + |
| 284 | + } |
| 285 | + }; |
| 286 | + |
| 287 | + SliderImgFunc.init = function(imgConter) { |
| 288 | + var _this = this; |
| 289 | + imgConter.each(function() { |
| 290 | + new _this($(this)); |
| 291 | + }); |
| 292 | + }; |
| 293 | + |
| 294 | + window.SliderImgFunc = SliderImgFunc; |
| 295 | +})(Zepto); |
0 commit comments