var v2viewer=function(){this.width=0;this.height=0;this.page=0;this.info=null;this.element='';this.fileId=null;this.hash='';this.shadow=0;this.zoom=100;this.occupancy=0.85;};v2viewer.prototype={getHash:function(){var l=8;var c="abcdefghijklmnopqrstuvwxyz0123456789";var cl=c.length;var r="";for(var i=0;i<l;i++){r+=c[Math.floor(Math.random()*cl)];}
return r;},open:function(fileId,element,w,h){if(!w){w=0;}
if(!h){h=0;}
this.hash=this.getHash();this.fileId=fileId;this.width=w;this.height=h;this.element=element;var my=this;glexa.ajax({action:'glexa_viewer_api',withoutLoading:true,params:{api:'open',file_id:fileId,width:w,height:h,hash:my.hash,},onSuccess:function(res){my.info=res.data;$(element).append(res.html);if(my.info){$(element+' .fast-backword-'+my.hash).off().on('click',function(){my.load(0);});$(element+' .backword-'+my.hash).off().on('click',function(){my.load(my.page-1);});$(element+' .fast-forward-'+my.hash).off().on('click',function(){my.load(my.info.pages);});$(element+' .forward-'+my.hash).off().on('click',function(){my.load(my.page+1);});$('#slider-'+my.hash+' .slider').slider({min:0,max:my.info.pages-1,step:1,change:function(e,ui){my.load(ui.value,true);},slide:function(e,ui){my.pager(ui.value,true);},});my.load(0);}else{var w1=$('#viewer-'+my.hash).innerWidth()*3/4;var w2=$(window).height()*my.occupancy;var w=Math.min(w1,w2);$('#viewer-'+my.hash).css('height',w+'px');}}});},load:function(page,isSlider){var my=this;if(page<0){page=0;}
if(page>=this.info.pages){page=this.info.pages-1;}
this.page=page;var img=$('#img-'+this.hash).html('<img src="'+window.urlbase+'?action=glexa_viewer_api&file_id='+this.fileId+'&api=load&p='+this.page+'" style="width: 100%; background-color: white;" class="undraggable" ondragstart="return false;" oncontextmenu="return false;" />');this.pager(this.page,isSlider);$(img).one('load',function(){var divWidth=$('#viewer-container-'+my.hash).width();var docWidth=my.info.size[0];var rate=divWidth/docWidth;var docHeight=rate*my.info.size[1];var maxHeight=$(window).height()*my.occupancy;if(docHeight>maxHeight){docWidth=divWidth*maxHeight/docHeight;}else{if(docWidth>divWidth){docWidth=divWidth;}}
$('#viewer-container-'+my.hash).css('width',docWidth+'px');}).load();if(!this.shadow){$('#shadow-'+this.hash).html($('#img-'+this.hash).html());$('#shadow-'+this.hash+' img').css('filter','brightness(0) invert(1)');this.shadow=1;}},pager:function(page,isSlider){$('#panel-'+this.hash+' input[type=text]').val((page+1)+'/'+this.info.pages);$('#slider-'+this.hash+' input[type=range]').val(page+1);if(!isSlider){$('#slider-'+this.hash+' .slider').slider('value',page);}},zoomArea:function(diff){this.zoom+=diff;$('#viewer-'+this.hash).css('zoom',this.zoom+'%');}};