3 lines
4.9 KiB
JavaScript
3 lines
4.9 KiB
JavaScript
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/* eslint-disable */
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!function(a,b){"object"==typeof exports?module.exports=b():"function"==typeof define&&define.amd?define([],b):a.Draggable=b()}(this,function(){"use strict";function a(a,b){var c=this,d=k.bind(c.start,c),e=k.bind(c.drag,c),g=k.bind(c.stop,c);if(!f(a))throw new TypeError("Draggable expects argument 0 to be an Element");b=k.assign({},i,b),k.assign(c,{element:a,handle:b.handle&&f(b.handle)?b.handle:a,handlers:{start:{mousedown:d,touchstart:d},move:{mousemove:e,mouseup:g,touchmove:e,touchend:g}},options:b}),c.initialize()}function b(a){return parseInt(a,10)}function c(a){return"currentStyle"in a?a.currentStyle:getComputedStyle(a)}function d(a){return a instanceof Array}function e(a){return void 0!==a&&null!==a}function f(a){return a instanceof Element||"undefined"!=typeof HTMLDocument&&a instanceof HTMLDocument}function g(a){return a instanceof Function}function h(){}var i={grid:0,filterTarget:null,limit:{x:null,y:null},threshold:0,setCursor:!1,setPosition:!0,smoothDrag:!0,useGPU:!0,onDrag:h,onDragStart:h,onDragEnd:h},j={transform:function(){for(var a=" -o- -ms- -moz- -webkit-".split(" "),b=document.body.style,c=a.length;c--;){var d=a[c]+"transform";if(d in b)return d}}()},k={assign:function(){for(var a=arguments[0],b=arguments.length,c=1;b>c;c++){var d=arguments[c];for(var e in d)a[e]=d[e]}return a},bind:function(a,b){return function(){a.apply(b,arguments)}},on:function(a,b,c){if(b&&c)k.addEvent(a,b,c);else if(b)for(var d in b)k.addEvent(a,d,b[d])},off:function(a,b,c){if(b&&c)k.removeEvent(a,b,c);else if(b)for(var d in b)k.removeEvent(a,d,b[d])},limit:function(a,b){return d(b)?(b=[+b[0],+b[1]],a<b[0]?a=b[0]:a>b[1]&&(a=b[1])):a=+b,a},addEvent:"attachEvent"in Element.prototype?function(a,b,c){a.attachEvent("on"+b,c)}:function(a,b,c){a.addEventListener(b,c,!1)},removeEvent:"attachEvent"in Element.prototype?function(a,b,c){a.detachEvent("on"+b,c)}:function(a,b,c){a.removeEventListener(b,c)}};return k.assign(a.prototype,{setOption:function(a,b){var c=this;return c.options[a]=b,c.initialize(),c},get:function(){var a=this.dragEvent;return{x:a.x,y:a.y}},set:function(a,b){var c=this,d=c.dragEvent;return d.original={x:d.x,y:d.y},c.move(a,b),c},dragEvent:{started:!1,x:0,y:0},initialize:function(){var a,b=this,d=b.element,e=(b.handle,d.style),f=c(d),g=b.options,h=j.transform,i=b._dimensions={height:d.offsetHeight,left:d.offsetLeft,top:d.offsetTop,width:d.offsetWidth};g.useGPU&&h&&(a=f[h],"none"===a&&(a=""),e[h]=a+" translate3d(0,0,0)"),g.setPosition&&(e.display="block",e.left=i.left+"px",e.top=i.top+"px",e.bottom=e.right="auto",e.margin=0,e.position="absolute"),g.setCursor&&(e.cursor="move"),b.setLimit(g.limit),k.assign(b.dragEvent,{x:i.left,y:i.top}),k.on(b.handle,b.handlers.start)},start:function(a){var b=this,c=b.getCursor(a),d=b.element;b.useTarget(a.target||a.srcElement)&&(a.preventDefault?a.preventDefault():a.returnValue=!1,b.dragEvent.oldZindex=d.style.zIndex,d.style.zIndex=1e4,b.setCursor(c),b.setPosition(),b.setZoom(),k.on(document,b.handlers.move))},drag:function(a){var b=this,c=b.dragEvent,d=b.element,e=b._cursor,f=b._dimensions,g=b.options,h=f.zoom,i=b.getCursor(a),j=g.threshold,k=(i.x-e.x)/h+f.left,l=(i.y-e.y)/h+f.top;!c.started&&j&&Math.abs(e.x-i.x)<j&&Math.abs(e.y-i.y)<j||(c.original||(c.original={x:k,y:l}),c.started||(g.onDragStart(d,k,l,a),c.started=!0),b.move(k,l)&&g.onDrag(d,c.x,c.y,a))},move:function(a,b){var c=this,d=c.dragEvent,e=c.options,f=e.grid,g=c.element.style,h=c.limit(a,b,d.original.x,d.original.y);return!e.smoothDrag&&f&&(h=c.round(h,f)),h.x!==d.x||h.y!==d.y?(d.x=h.x,d.y=h.y,g.left=h.x+"px",g.top=h.y+"px",!0):!1},stop:function(a){var b,c=this,d=c.dragEvent,e=c.element,f=c.options,g=f.grid;k.off(document,c.handlers.move),e.style.zIndex=d.oldZindex,f.smoothDrag&&g&&(b=c.round({x:d.x,y:d.y},g),c.move(b.x,b.y),k.assign(c.dragEvent,b)),c.dragEvent.started&&f.onDragEnd(e,d.x,d.y,a),c.reset()},reset:function(){this.dragEvent.started=!1},round:function(a){var b=this.options.grid;return{x:b*Math.round(a.x/b),y:b*Math.round(a.y/b)}},getCursor:function(a){return{x:(a.targetTouches?a.targetTouches[0]:a).clientX,y:(a.
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