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vue-mercury-better-scroll

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a scroll component for Mobile(H5) based on better-scroll(thanks to vue-slim-better-scroll<https://github.com/wannaxiao/vue-slim-better-scroll>

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Math.max(0,Math.min(this.y*this.ratio,this.maxDistance))},style:function(){return"width:".concat(this.width/this.ratio,"px;height:").concat(this.height/this.ratio,"px")}},watch:{y:function(){this._draw()}},created:function(){this.ratio=window.devicePixelRatio,this.width*=this.ratio,this.height*=this.ratio,this.initRadius=18*this.ratio,this.minHeadRadius=12*this.ratio,this.minTailRadius=5*this.ratio,this.initArrowRadius=10*this.ratio,this.minArrowRadius=6*this.ratio,this.arrowWidth=3*this.ratio,this.maxDistance=40*this.ratio,this.initCenterX=25*this.ratio,this.initCenterY=25*this.ratio,this.headCenter={x:this.initCenterX,y:this.initCenterY}},mounted:function(){this._draw()},methods:{_draw:function(){var t=this.$refs.bubble,e=t.getContext("2d");e.clearRect(0,0,t.width,t.height),this._drawBubble(e),this._drawArrow(e)},_drawBubble:function(t){t.save(),t.beginPath();var e=this.distance/this.maxDistance,n=this.initRadius-(this.initRadius-this.minHeadRadius)*e;this.headCenter.y=this.initCenterY-(this.initRadius-this.minHeadRadius)*e,t.arc(this.headCenter.x,this.headCenter.y,n,0,Math.PI,!0);var r=this.initRadius-(this.initRadius-this.minTailRadius)*e,i={x:this.headCenter.x,y:this.headCenter.y+this.distance},o={x:i.x-r,y:i.y},l={x:o.x,y:o.y-this.distance/2};t.quadraticCurveTo(l.x,l.y,o.x,o.y),t.arc(i.x,i.y,r,Math.PI,0,!0);var s={x:this.headCenter.x+n,y:this.headCenter.y},a={x:i.x+r,y:s.y+this.distance/2};t.quadraticCurveTo(a.x,a.y,s.x,s.y),t.fillStyle="rgb(33,202,138)",t.fill(),t.strokeStyle="rgb(33,202,138)",t.stroke(),t.restore()},_drawArrow:function(t){t.save(),t.beginPath();var e=this.distance/this.maxDistance,n=this.initArrowRadius-(this.initArrowRadius-this.minArrowRadius)*e;t.arc(this.headCenter.x,this.headCenter.y,n-(this.arrowWidth-e),-Math.PI/2,0,!0),t.arc(this.headCenter.x,this.headCenter.y,n,0,3*Math.PI/2,!1),t.lineTo(this.headCenter.x,this.headCenter.y-n-this.arrowWidth/2+e),t.lineTo(this.headCenter.x+2*this.arrowWidth-2*e,this.headCenter.y-n+this.arrowWidth/2),t.lineTo(this.headCenter.x,this.headCenter.y-n+3*this.arrowWidth/2-e),t.fillStyle="rgb(255,255,255)",t.fill(),t.strokeStyle="rgb(33,202,138)",t.stroke(),t.restore()}}},void 0,!1,void 0,void 0,void 0);function w(t){return new Promise(function(e){setTimeout(e,t)})}var y=a({render:function(){var t=this,e=t.$createElement,n=t._self._c||e;return n("div",{ref:"scroll",class:t.c()},[n("div",{class:t.c("__wrapper")},[n("div",{ref:"scrollContent"},[t._t("default")],2),t._v(" "),t._t("pullup",[t.pullUp?n("div",{class:t.c("__pullup")},[t.pullUpNow?n("div",[t._t("pullupLoading",[n("Loading")])],2):n("div",[n("span",[t._v(t._s(t.pullUpTxt))])])]):t._e()],{pullUp:t.pullUp,pullUpNow:t.pullUpNow})],2),t._v(" 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0,media:void 0})},{name:"Scroll",components:{Loading:d,Bubble:f},mixins:[l],props:{probeType:{type:Number,default:1},click:{type:Boolean,default:!0},listenScroll:{type:Boolean,default:!1},listenBeforeScrollStart:{type:Boolean,default:!1},scrollX:{type:Boolean,default:!1},scrollY:{type:Boolean,default:!0},scrollbar:{type:null,default:!1},pullDown:{type:Boolean,default:!0},pullDownConfig:{type:Object,default:function(){return{threshold:90,stop:40,txt:"\u5237\u65b0\u6210\u529f"}}},pullUp:{type:Boolean,default:!0},pullUpConfig:{type:Object,default:function(){return{threshold:100,txt:{more:"\u4e0a\u62c9\u52a0\u8f7d",noMore:"\u2014 \u6211\u662f\u6709\u5e95\u7ebf\u7684 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t.next=4,this.$nextTick();case 4:this.refresh();case 5:case"end":return t.stop()}},t,this)}));return function(){return t.apply(this,arguments)}}()},activated:function(){this.refresh()},mounted:function(){var t=i(n.mark(function t(){var e=this;return n.wrap(function(t){for(;;)switch(t.prev=t.next){case 0:return this.pullDownInitTop=parseInt(this.$refs.pulldown&&getComputedStyle(this.$refs.pulldown).top)||-50,t.next=3,this.$nextTick();case 3:this.initScroll(),this.autoUpdate&&this.$parent&&this.$parent.$data&&this.$watch(function(){return e.$parent.$data},function(t){e.update()},{deep:!0});case 5:case"end":return t.stop()}},t,this)}));return function(){return t.apply(this,arguments)}}(),methods:{initScroll:function(){var t=this;if(this.$refs.scroll){this.$refs.scrollContent&&(this.$refs.scrollContent.style.minHeight="".concat(this.$refs.scroll.getBoundingClientRect().height+1,"px"));var n={probeType:this.probeType,click:this.click,scrollX:this.scrollX,scrollY:this.scrollY,scrollbar:this.scrollbar,pullDownRefresh:this.pullDown&&this.pullDownConfig,pullUpLoad:this.pullUp&&this.pullUpConfig,startY:this.startY,bounce:this.bounce,bounceTime:this.bounceTime,preventDefaultException:this.preventDefaultException};this.scroll=new e(this.$refs.scroll,n),this.listenScroll&&this.scroll.on("scroll",function(e){t.$emit("scroll",e)}),this.listenBeforeScrollStart&&this.scroll.on("beforeScrollStart",function(){t.$emit("beforeScrollStart")}),this.pullDown&&this._initPullDown(),this.pullUp&&this._initPullUp()}},_initPullDown:function(){var t=this;this.scroll.on("pullingDown",function(){t.pullDownBefore=!1,t.pullDownNow=!0,t.$emit("pullingDown"),t.scroll.closePullDown()}),this.scroll.on("scroll",function(e){if(t.pullDown&&!(e.y<0)){var n=Math.floor(e.y);t.pullDownBefore?(t.bubbleY=Math.max(0,n+t.pullDownInitTop),t.pullDownStyle="transform: translateY(".concat(Math.min(n,-t.pullDownInitTop),"px)")):t.bubbleY=0,t.isRebounding&&(t.pullDownStyle="transform: translateY(".concat(Math.min(n,t.pullDownConfig.stop),"px)"))}})},_initPullUp:function(){var t=this;this.scroll.on("pullingUp",function(){t.pullUpFinally?t.scroll.finishPullUp():(t.pullUpNow=!0,t.$emit("pullingUp"))})},disable:function(){this.scroll&&this.scroll.disable()},enable:function(){this.scroll&&this.scroll.enable()},destroy:function(){this.scroll&&this.scroll.destroy()},refresh:function(){this.scroll&&this.scroll.refresh()},update:function(){var t=i(n.mark(function t(e){return n.wrap(function(t){for(;;)switch(t.prev=t.next){case 0:if(!this.pullDown||!this.pullDownNow){t.next=17;break}if(!this.pullDownUpdateState){t.next=3;break}return t.abrupt("return");case 3:return this.pullDownUpdateState=!0,this.pullDownNow=!1,t.next=7,w(this.bounceTime/2);case 7:return this.isRebounding=!0,this.scroll.finishPullDown(),t.next=11,w(this.bounceTime);case 11:this.pullDownBefore=!0,this.isRebounding=!1,this.scroll.openPullDown(this.pullDownConfig),this.pullUpFinally=!1,t.next=23;break;case 17:if(!this.pullUp||!this.pullUpNow){t.next=23;break}if(!this.pullUpUpdateState){t.next=20;break}return t.abrupt("return");case 20:this.pullUpUpdateState=!0,this.pullUpNow=!1,this.scroll.finishPullUp();case 23:return void 0!==e&&(this.pullUpFinally=!!e),t.next=26,this.$nextTick();case 26:this.refresh(),this.pullDownUpdateState=!1,this.pullUpUpdateState=!1;case 29:case"end":return t.stop()}},t,this)}));return function(e){return t.apply(this,arguments)}}(),scrollTo:function(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:0,e=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:this.bounceTime;this.scroll&&this.scroll.scrollTo(t,e,n)},scrollToElement:function(){this.scroll&&this.scroll.scrollToElement.apply(this.scroll,arguments)},scrollToTop:function(){this.scroll&&this.scrollTo(0,0)},scrollToBottom:function(){this.scroll&&this.scrollTo(0,this.scroll.maxScrollY)},autoPullDownRefresh:function(){this.scroll&&this.scroll.autoPullDownRefresh()}}},void 0,!1,void 0,p,void 0);y.install=function(t){t.component(y.name,y)},module.exports=y;