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// WebcamJS v1.0.9 - http://github.com/jhuckaby/webcamjs - MIT Licensed
(function(e){var t;function a(){var e=Error.apply(this,arguments);e.name=this.name="FlashError";this.stack=e.stack;this.message=e.message}function s(){var e=Error.apply(this,arguments);e.name=this.name="WebcamError";this.stack=e.stack;this.message=e.message}IntermediateInheritor=function(){};IntermediateInheritor.prototype=Error.prototype;a.prototype=new IntermediateInheritor;s.prototype=new IntermediateInheritor;var Webcam={version:"1.0.8",protocol:location.protocol.match(/https/i)?"https":"http",loaded:false,live:false,userMedia:true,params:{width:0,height:0,dest_width:0,dest_height:0,image_format:"jpeg",jpeg_quality:90,force_flash:false,flip_horiz:false,fps:30,upload_name:"webcam",constraints:null,swfURL:"",flashNotDetectedText:"ERROR: No Adobe Flash Player detected. Webcam.js relies on Flash for browsers that do not support getUserMedia (like yours)."},errors:{FlashError:a,WebcamError:s},hooks:{},init:function(){var t=this;this.mediaDevices=navigator.mediaDevices&&navigator.mediaDevices.getUserMedia?navigator.mediaDevices:navigator.mozGetUserMedia||navigator.webkitGetUserMedia?{getUserMedia:function(e){return new Promise(function(t,a){(navigator.mozGetUserMedia||navigator.webkitGetUserMedia).call(navigator,e,t,a)})}}:null;e.URL=e.URL||e.webkitURL||e.mozURL||e.msURL;this.userMedia=this.userMedia&&!!this.mediaDevices&&!!e.URL;if(navigator.userAgent.match(/Firefox\D+(\d+)/)){if(parseInt(RegExp.$1,10)<21)this.userMedia=null}if(this.userMedia){e.addEventListener("beforeunload",function(e){t.reset()})}},attach:function(a){if(typeof a=="string"){a=document.getElementById(a)||document.querySelector(a)}if(!a){return this.dispatch("error",new s("Could not locate DOM element to attach to."))}this.container=a;a.innerHTML="";var i=document.createElement("div");a.appendChild(i);this.peg=i;if(!this.params.width)this.params.width=a.offsetWidth;if(!this.params.height)this.params.height=a.offsetHeight;if(!this.params.width||!this.params.height){return this.dispatch("error",new s("No width and/or height for webcam. Please call set() first, or attach to a visible element."))}if(!this.params.dest_width)this.params.dest_width=this.params.width;if(!this.params.dest_height)this.params.dest_height=this.params.height;this.userMedia=t===undefined?this.userMedia:t;if(this.params.force_flash){t=this.userMedia;this.userMedia=null}if(typeof this.params.fps!=="number")this.params.fps=30;var r=this.params.width/this.params.dest_width;var o=this.params.height/this.params.dest_height;if(this.userMedia){var h=document.createElement("video");h.setAttribute("autoplay","autoplay");h.style.width=""+this.params.dest_width+"px";h.style.height=""+this.params.dest_height+"px";if(r!=1||o!=1){a.style.overflow="hidden";h.style.webkitTransformOrigin="0px 0px";h.style.mozTransformOrigin="0px 0px";h.style.msTransformOrigin="0px 0px";h.style.oTransformOrigin="0px 0px";h.style.transformOrigin="0px 0px";h.style.webkitTransform="scaleX("+r+") scaleY("+o+")";h.style.mozTransform="scaleX("+r+") scaleY("+o+")";h.style.msTransform="scaleX("+r+") scaleY("+o+")";h.style.oTransform="scaleX("+r+") scaleY("+o+")";h.style.transform="scaleX("+r+") scaleY("+o+")"}a.appendChild(h);this.video=h;var n=this;this.mediaDevices.getUserMedia({audio:false,video:this.params.constraints||{mandatory:{minWidth:this.params.dest_width,minHeight:this.params.dest_height}}}).then(function(t){h.onloadedmetadata=function(e){n.stream=t;n.loaded=true;n.live=true;n.dispatch("load");n.dispatch("live");n.flip()};h.src=e.URL.createObjectURL(t)||t}).catch(function(e){return n.dispatch("error",e)})}else{e.Webcam=Webcam;var l=document.createElement("div");l.innerHTML=this.getSWFHTML();a.appendChild(l)}if(this.params.crop_width&&this.params.crop_height){var c=Math.floor(this.params.crop_width*r);var m=Math.floor(this.params.crop_height*o);a.style.width=""+c+"px";a.style.height=""+m+"px";a.style.overflow="hidden";a.scrollLeft=Math.floor(this.params.width/2-c/2);a.scrollTop=Math.floor(this.params.height/2-m/2)}else{a.style.width=""+this.params.width+"px";a.style.height=""+this.params.height+"px"}},reset:function(){if(this.preview_active)this.unfreeze();this.unflip();if(this.userMedia){if(this.stream){if(this.stream.getVideoTracks){var e=this.stream.getVideoTracks();if(e&&e[0]&&e[0].stop)e[0].stop()}else if(this.stream.stop){this.stream.stop()}}delete this.stream;delete this.video}if(this.userMedia!==true){this.getMovie()._releaseCamera()}if(this.container){this.container.innerHTML="";delete this.container}this.loaded=false;this.live=false},set:function(){if(arguments.length==1){for(var e in arguments[0]){this.params[e]=arguments[0][e]}}else{this.params[arguments[0]]=arguments[1]}},on:function(e,t){e=e.replace(/^on/i,"").toLowerCase();if(!this.hooks[e])this.hooks[e]=[];this.hooks[e].push(t)},off:function(e,t){e=e.replace(/^on/i,"").toLowerCase();if(this.hooks[e]){if(t){var a=this.hooks[e].indexOf(t);if(a>-1)this.hooks[e].splice(a,1)}else{this.hooks[e]=[]}}},dispatch:function(){var t=arguments[0].replace(/^on/i,"").toLowerCase();var i=Array.prototype.slice.call(arguments,1);if(this.hooks[t]&&this.hooks[t].length){for(var r=0,o=this.hooks[t].length;r<o;r++){var h=this.hooks[t][r];if(typeof h=="function"){h.apply(this,i)}else if(typeof h=="object"&&h.length==2){h[0][h[1]].apply(h[0],i)}else if(e[h]){e[h].apply(e,i)}}return true}else if(t=="error"){if(i[0]instanceof a||i[0]instanceof s){message=i[0].message}else{message="Could not access webcam: "+i[0].name+": "+i[0].message+" "+i[0].toString()}alert("Webcam.js Error: "+message)}return false},setSWFLocation:function(e){this.set("swfURL",e)},detectFlash:function(){var t="Shockwave Flash",a="ShockwaveFlash.ShockwaveFlash",s="application/x-shockwave-flash",i=e,r=navigator,o=false;if(typeof r.plugins!=="undefined"&&typeof r.plugins[t]==="object"){var h=r.plugins[t].description;if(h&&(typeof r.mimeTypes!=="undefined"&&r.mimeTypes[s]&&r.mimeTypes[s].enabledPlugin)){o=true}}else if(typeof i.ActiveXObject!=="undefined"){try{var n=new ActiveXObject(a);if(n){var l=n.GetVariable("$version");if(l)o=true}}catch(c){}}return o},getSWFHTML:function(){var t="",s=this.params.swfURL;if(location.protocol.match(/file/)){this.dispatch("error",new a("Flash does not work from local disk. Please run from a web server."));return'<h3 style="color:red">ERROR: the Webcam.js Flash fallback does not work from local disk. Please run it from a web server.</h3>'}if(!this.detectFlash()){this.dispatch("error",new a("Adobe Flash Player not found. Please install from get.adobe.com/flashplayer and try again."));return'<h3 style="color:red">'+this.params.flashNotDetectedText+"</h3>"}if(!s){var i="";var r=document.getElementsByTagName("script");for(var o=0,h=r.length;o<h;o++){var n=r[o].getAttribute("src");if(n&&n.match(/\/webcam(\.min)?\.js/)){i=n.replace(/\/webcam(\.min)?\.js.*$/,"");o=h}}if(i)s=i+"/webcam.swf";else s="webcam.swf"}if(e.localStorage&&!localStorage.getItem("visited")){this.params.new_user=1;localStorage.setItem("visited",1)}var l="";for(var c in this.params){if(l)l+="&";l+=c+"="+escape(this.params[c])}t+='<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" type="application/x-shockwave-flash" codebase="'+this.protocol+'://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,0,0" width="'+this.params.width+'" height="'+this.params.height+'" id="webcam_movie_obj" align="middle"><param name="wmode" value="opaque" /><param name="allowScriptAccess" value="always" /><param name="allowFullScreen" value="false" /><param name="movie" value="'+s+'" /><param name="loop" value="false" /><param name="menu" value="false" /><param name="quality" value="best" /><param name="bgcolor" value="#ffffff" /><param name="flashvars" value="'+l+'"/><embed id="webcam_movie_embed" src="'+s+'" wmode="opaque" loop="false" menu="false" quality="best" bgcolor="#ffffff" width="'+this.params.width+'" height="'+this.params.height+'" name="webcam_movie_embed" align="middle" allowScriptAccess="always" allowFullScreen="false" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" flashvars="'+l+'"></embed></object>';return t},getMovie:function(){if(!this.loaded)return this.dispatch("error",new a("Flash Movie is not loaded yet"));var e=document.getElementById("webcam_movie_obj");if(!e||!e._snap)e=document.getElementById("webcam_movie_embed");if(!e)this.dispatch("error",new a("Cannot locate Flash movie in DOM"));return e},freeze:function(){var e=this;var t=this.params;if(this.preview_active)this.unfreeze();var a=this.params.width/this.params.dest_width;var s=this.params.height/this.params.dest_height;this.unflip();var i=t.crop_width||t.dest_width;var r=t.crop_height||t.dest_height;var o=document.createElement("canvas");o.width=i;o.height=r;var h=o.getContext("2d");this.preview_canvas=o;this.preview_context=h;if(a!=1||s!=1){o.style.webkitTransformOrigin="0px 0px";o.style.mozTransformOrigin="0px 0px";o.style.msTransformOrigin="0px 0px";o.style.oTransformOrigin="0px 0px";o.style.transformOrigin="0px 0px";o.style.webkitTransform="scaleX("+a+") scaleY("+s+")";o.style.mozTransform="scaleX("+a+") scaleY("+s+")";o.style.msTransform="scaleX("+a+") scaleY("+s+")";o.style.oTransform="scaleX("+a+") scaleY("+s+")";o.style.transform="scaleX("+a+") scaleY("+s+")"}this.snap(function(){o.style.position="relative";o.style.left=""+e.container.scrollLeft+"px";o.style.top=""+e.container.scrollTop+"px";e.container.insertBefore(o,e.peg);e.container.style.overflow="hidden";e.preview_active=true},o)},unfreeze:function(){if(this.preview_active){this.container.removeChild(this.preview_canvas);delete this.preview_context;delete this.preview_canvas;this.preview_active=false;this.flip()}},flip:function(){if(this.params.flip_horiz){var e=this.container.style;e.webkitTransform="scaleX(-1)";e.mozTransform="scaleX(-1)";e.msTransform="scaleX(-1)";e.oTransform="scaleX(-1)";e.transform="scaleX(-1)";e.filter="FlipH";e.msFilter="FlipH"}},unflip:function(){if(this.params.flip_horiz){var e=this.container.style;e.webkitTransform="scaleX(1)";e.mozTransform="scaleX(1)";e.msTransform="scaleX(1)";e.oTransform="scaleX(1)";e.transform="scaleX(1)";e.filter="";e.msFilter=""}},savePreview:function(e,t){var a=this.params;var s=this.preview_canvas;var i=this.preview_context;if(t){var r=t.getContext("2d");r.drawImage(s,0,0)}e(t?null:s.toDataURL("image/"+a.image_format,a.jpeg_quality/100),s,i);this.unfreeze()},snap:function(e,t){var a=this;var i=this.params;if(!this.loaded)return this.dispatch("error",new s("Webcam is not loaded yet"));if(!e)return this.dispatch("error",new s("Please provide a callback function or canvas to snap()"));if(this.preview_active){this.savePreview(e,t);return null}var r=document.createElement("canvas");r.width=this.params.dest_width;r.height=this.params.dest_height;var o=r.getContext("2d");if(this.params.flip_horiz){o.translate(i.dest_width,0);o.scale(-1,1)}var h=function(){if(this.src&&this.width&&this.height){o.drawImage(this,0,0,i.dest_width,i.dest_height)}if(i.crop_width&&i.crop_height){var a=document.createElement("canvas");a.width=i.crop_width;a.height=i.crop_height;var s=a.getContext("2d");s.drawImage(r,Math.floor(i.dest_width/2-i.crop_width/2),Math.floor(i.dest_height/2-i.crop_height/2),i.crop_width,i.crop_height,0,0,i.crop_width,i.crop_height);o=s;r=a}if(t){var h=t.getContext("2d");h.drawImage(r,0,0)}e(t?null:r.toDataURL("image/"+i.image_format,i.jpeg_quality/100),r,o)};if(this.userMedia){o.drawImage(this.video,0,0,this.params.dest_width,this.params.dest_height);h()}else{var n=this.getMovie()._snap();var l=new Image;l.onload=h;l.src="data:image/"+this.params.image_format+";base64,"+n}return null},configure:function(e){if(!e)e="camera";this.getMovie()._configure(e)},flashNotify:function(e,t){switch(e){case"flashLoadComplete":this.loaded=true;this.dispatch("load");break;case"cameraLive":this.live=true;this.dispatch("live");break;case"error":this.dispatch("error",new a(t));break;default:break}},b64ToUint6:function(e){return e>64&&e<91?e-65:e>96&&e<123?e-71:e>47&&e<58?e+4:e===43?62:e===47?63:0},base64DecToArr:function(e,t){var a=e.replace(/[^A-Za-z0-9\+\/]/g,""),s=a.length,i=t?Math.ceil((s*3+1>>2)/t)*t:s*3+1>>2,r=new Uint8Array(i);for(var o,h,n=0,l=0,c=0;c<s;c++){h=c&3;n|=this.b64ToUint6(a.charCodeAt(c))<<18-6*h;if(h===3||s-c===1){for(o=0;o<3&&l<i;o++,l++){r[l]=n>>>(16>>>o&24)&255}n=0}}return r},upload:function(e,t,a){var s=this.params.upload_name||"webcam";var i="";if(e.match(/^data\:image\/(\w+)/))i=RegExp.$1;else throw"Cannot locate image format in Data URI";var r=e.replace(/^data\:image\/\w+\;base64\,/,"");var o=new XMLHttpRequest;o.open("POST",t,true);if(o.upload&&o.upload.addEventListener){o.upload.addEventListener("progress",function(e){if(e.lengthComputable){var t=e.loaded/e.total;Webcam.dispatch("uploadProgress",t,e)}},false)}var h=this;o.onload=function(){if(a)a.apply(h,[o.status,o.responseText,o.statusText]);Webcam.dispatch("uploadComplete",o.status,o.responseText,o.statusText)};var n=new Blob([this.base64DecToArr(r)],{type:"image/"+i});var l=new FormData;l.append(s,n,s+"."+i.replace(/e/,""));o.send(l)}};Webcam.init();if(typeof define==="function"&&define.amd){define(function(){return Webcam})}else if(typeof module==="object"&&module.exports){module.exports=Webcam}else{e.Webcam=Webcam}})(window);