vant/lib/vant.min.js

Mobile UI Components built on Vue

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 * (c) 2018 Awe <hilongjw@gmail.com>
 * Released under the MIT License.
 */
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window}}(e));var h=new I({bindType:i.arg,$parent:u,el:e,loading:l,error:c,src:a,elRenderer:r._elRenderer.bind(r),options:r.options});r.ListenerQueue.push(h),g&&(r._addListenerTarget(window),r._addListenerTarget(u)),r.lazyLoadHandler(),t.nextTick((function(){return r.lazyLoadHandler()}))}))}},{key:"update",value:function(e,i){var n=this,r=this._valueFormatter(i.value),a=r.src,l=r.loading,c=r.error;a=s(e,this.options.scale)||a;var u=o(this.ListenerQueue,(function(t){return t.el===e}));u&&u.update({src:a,loading:l,error:c}),this._observer&&(this._observer.unobserve(e),this._observer.observe(e)),this.lazyLoadHandler(),t.nextTick((function(){return n.lazyLoadHandler()}))}},{key:"remove",value:function(t){if(t){this._observer&&this._observer.unobserve(t);var e=o(this.ListenerQueue,(function(e){return e.el===t}));e&&(this._removeListenerTarget(e.$parent),this._removeListenerTarget(window),r(this.ListenerQueue,e)&&e.destroy())}}},{key:"removeComponent",value:function(t){t&&(r(this.ListenerQueue,t),this._observer&&this._observer.unobserve(t.el),t.$parent&&t.$el.parentNode&&this._removeListenerTarget(t.$el.parentNode),this._removeListenerTarget(window))}},{key:"setMode",value:function(t){var e=this;b||t!==S||(t=y),this.mode=t,t===y?(this._observer&&(this.ListenerQueue.forEach((function(t){e._observer.unobserve(t.el)})),this._observer=null),this.TargetQueue.forEach((function(t){e._initListen(t.el,!0)}))):(this.TargetQueue.forEach((function(t){e._initListen(t.el,!1)})),this._initIntersectionObserver())}},{key:"_addListenerTarget",value:function(t){if(t){var e=o(this.TargetQueue,(function(e){return e.el===t}));return e?e.childrenCount++:(e={el:t,id:++this.TargetIndex,childrenCount:1,listened:!0},this.mode===y&&this._initListen(e.el,!0),this.TargetQueue.push(e)),this.TargetIndex}}},{key:"_removeListenerTarget",value:function(t){var e=this;this.TargetQueue.forEach((function(i,n){i.el===t&&(--i.childrenCount||(e._initListen(i.el,!1),e.TargetQueue.splice(n,1),i=null))}))}},{key:"_initListen",value:function(t,e){var i=this;this.options.ListenEvents.forEach((function(n){return C[e?"on":"off"](t,n,i.lazyLoadHandler)}))}},{key:"_initEvent",value:function(){var t=this;this.Event={listeners:{loading:[],loaded:[],error:[]}},this.$on=function(e,i){t.Event.listeners[e].push(i)},this.$once=function(e,i){var n=t;t.$on(e,(function t(){n.$off(e,t),i.apply(n,arguments)}))},this.$off=function(e,i){i?r(t.Event.listeners[e],i):t.Event.listeners[e]=[]},this.$emit=function(e,i,n){t.Event.listeners[e].forEach((function(t){return t(i,n)}))}}},{key:"_lazyLoadHandler",value:function(){var t=this;this.ListenerQueue.forEach((function(e,i){e.state.loaded||e.checkInView()&&e.load((function(){!e.error&&e.loaded&&t.ListenerQueue.splice(i,1)}))}))}},{key:"_initIntersectionObserver",value:function(){var t=this;b&&(this._observer=new IntersectionObserver(this._observerHandler.bind(this),this.options.observerOptions),this.ListenerQueue.length&&this.ListenerQueue.forEach((function(e){t._observer.observe(e.el)})))}},{key:"_observerHandler",value:function(t,e){var i=this;t.forEach((function(t){t.isIntersecting&&i.ListenerQueue.forEach((function(e){if(e.el===t.target){if(e.state.loaded)return i._observer.unobserve(e.el);e.load()}}))}))}},{key:"_elRenderer",value:function(t,e,i){if(t.el){var n=t.el,r=t.bindType,s=void 0;switch(e){case"loading":s=t.loading;break;case"error":s=t.error;break;default:s=t.src}if(r?n.style[r]='url("'+s+'")':n.getAttribute("src")!==s&&n.setAttribute("src",s),n.setAttribute("lazy",e),this.$emit(e,t,i),this.options.adapter[e]&&this.options.adapter[e](t,this.options),this.options.dispatchEvent){var o=new k(e,{detail:t});n.dispatchEvent(o)}}}},{key:"_valueFormatter",value:function(t){var e=t,i=this.options.loading,n=this.options.error;return function(t){return null!==t&&"object"===(void 0===t?"undefined":c(t))}(t)&&(t.src||this.options.silent||console.error("Vue Lazyload warning: miss src with "+t),e=t.src,i=t.loading||this.options.loading,n=t.error||this.options.error),{src:e,loading:i,error:n}}}]),e}()},L=function(t){return{props:{tag:{type:String,default:"div"}},render:function(t){return!1===this.show?t(this.tag):t(this.tag,null,this.$slots.default)},data:function(){return{el:null,state:{loaded:!1},rect:{},show:!1}},mounted:function(){this.el=this.$el,t.addLazyBox(this),t.lazyLoadHandler()},beforeDestroy:function(){t.removeComponent(this)},methods:{getRect:function(){this.rect=this.$el.getBoundingClientRect()},checkInView:function(){return this.getRect(),g&&this.rect.top<window.innerHeight*t.options.preLoad&&this.rect.bottom>0&&this.rect.left<window.innerWidth*t.options.preLoad&&this.rect.right>0},load:function(){this.show=!0,this.state.loaded=!0,this.$emit("show",this)}}}},N=function(){function t(e){var i=e.lazy;u(this,t),this.lazy=i,i.lazyContainerMananger=this,this._queue=[]}return h(t,[{key:"bind",value:function(t,e,i){var n=new M({el:t,binding:e,vnode:i,lazy:this.lazy});this._queue.push(n)}},{key:"update",value:function(t,e,i){var n=o(this._queue,(function(e){return e.el===t}));n&&n.update({el:t,binding:e,vnode:i})}},{key:"unbind",value:function(t,e,i){var n=o(this._queue,(function(e){return e.el===t}));n&&(n.clear(),r(this._queue,n))}}]),t}(),A={selector:"img"},M=function(){function t(e){var i=e.el,n=e.binding,r=e.vnode,s=e.lazy;u(this,t),this.el=null,this.vnode=r,this.binding=n,this.options={},this.lazy=s,this._queue=[],this.update({el:i,binding:n})}return h(t,[{key:"update",value:function(t){var e=this,i=t.el,n=t.binding;this.el=i,this.options=v({},A,n.value),this.getImgs().forEach((function(t){e.lazy.add(t,v({},e.binding,{value:{src:t.dataset.src,error:t.dataset.error,loading:t.dataset.loading}}),e.vnode)}))}},{key:"getImgs",value:function(){return function(t){for(var e=t.length,i=[],n=0;n<e;n++)i.push(t[n]);return i}(this.el.querySelectorAll(this.options.selector))}},{key:"clear",value:function(){var t=this;this.getImgs().forEach((function(e){return t.lazy.remove(e)})),this.vnode=null,this.binding=null,this.lazy=null}}]),t}();return{install:function(t){var e=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},i=P(t),n=new i(e),r=new N({lazy:n}),s="2"===t.version.split(".")[0];t.prototype.$Lazyload=n,e.lazyComponent&&t.component("lazy-component",L(n)),s?(t.directive("lazy",{bind:n.add.bind(n),update:n.update.bind(n),componentUpdated:n.lazyLoadHandler.bind(n),unbind:n.remove.bind(n)}),t.directive("lazy-container",{bind:r.bind.bind(r),update:r.update.bind(r),unbind:r.unbind.bind(r)})):(t.directive("lazy",{bind:n.lazyLoadHandler.bind(n),update:function(t,e){v(this.vm.$refs,this.vm.$els),n.add(this.el,{modifiers:this.modifiers||{},arg:this.arg,value:t,oldValue:e},{context:this.vm})},unbind:function(){n.remove(this.el)}}),t.directive("lazy-container",{update:function(t,e){r.update(this.el,{modifiers:this.modifiers||{},arg:this.arg,value:t,oldValue:e},{context:this.vm})},unbind:function(){r.unbind(this.el)}}))}}}()},function(t,e){var i;i=function(){return this}();try{i=i||new Function("return this")()}catch(t){"object"==typeof window&&(i=window)}t.exports=i},function(t,e,i){"use strict";function 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