dir/js/ajaxupload.min.js
Zach Prezkuta 1f09e7ad23 Modify Javascript to improve page loading times
1. Add template category 'end' that places content right before final </body> tag
	2. Move most Javascript from tpl files into one cacheable file, theme.js
	3. Load scripts at end of the HTML document instead of in the header
	4. Minify several Javascript files

Note that the second and third things were only done for Frost and Frost Mobile. Doing it for every theme means going through every .tpl for every theme and rearranging the Javascript, which is tedious.
2012-07-28 09:57:16 -06:00

6 lines
7.2 KiB
JavaScript

/**
* AJAX Upload ( http://valums.com/ajax-upload/ )
* Copyright (c) Andris Valums
* Licensed under the MIT license ( http://valums.com/mit-license/ )
* Thanks to Gary Haran, David Mark, Corey Burns and others for contributions.
*/(function(){function log(){typeof console!="undefined"&&typeof console.log=="function"&&(Array.prototype.unshift.call(arguments,"[Ajax Upload]"),console.log(Array.prototype.join.call(arguments," ")))}function addEvent(e,t,n){if(e.addEventListener)e.addEventListener(t,n,!1);else{if(!e.attachEvent)throw new Error("not supported or DOM not loaded");e.attachEvent("on"+t,function(){n.call(e)})}}function addResizeEvent(e){var t;addEvent(window,"resize",function(){t&&clearTimeout(t),t=setTimeout(e,100)})}function getBox(e){var t,n,r,i,s=getOffset(e);return t=s.left,r=s.top,n=t+e.offsetWidth,i=r+e.offsetHeight,{left:t,right:n,top:r,bottom:i}}function addStyles(e,t){for(var n in t)t.hasOwnProperty(n)&&(e.style[n]=t[n])}function copyLayout(e,t){var n=getBox(e);addStyles(t,{position:"absolute",left:n.left+"px",top:n.top+"px",width:e.offsetWidth+"px",height:e.offsetHeight+"px"}),t.title=e.title}function fileFromPath(e){return e.replace(/.*(\/|\\)/,"")}function getExt(e){return-1!==e.indexOf(".")?e.replace(/.*[.]/,""):""}function hasClass(e,t){var n=new RegExp("\\b"+t+"\\b");return n.test(e.className)}function addClass(e,t){hasClass(e,t)||(e.className+=" "+t)}function removeClass(e,t){var n=new RegExp("\\b"+t+"\\b");e.className=e.className.replace(n,"")}function removeNode(e){e.parentNode.removeChild(e)}if(document.documentElement.getBoundingClientRect)var getOffset=function(e){var t=e.getBoundingClientRect(),n=e.ownerDocument,r=n.body,i=n.documentElement,s=i.clientTop||r.clientTop||0,o=i.clientLeft||r.clientLeft||0,u=1;if(r.getBoundingClientRect){var a=r.getBoundingClientRect();u=(a.right-a.left)/r.clientWidth}u>1&&(s=0,o=0);var f=t.top/u+(window.pageYOffset||i&&i.scrollTop/u||r.scrollTop/u)-s,l=t.left/u+(window.pageXOffset||i&&i.scrollLeft/u||r.scrollLeft/u)-o;return{top:f,left:l}};else var getOffset=function(e){var t=0,n=0;do t+=e.offsetTop||0,n+=e.offsetLeft||0,e=e.offsetParent;while(e);return{left:n,top:t}};var toElement=function(){var e=document.createElement("div");return function(t){e.innerHTML=t;var n=e.firstChild;return e.removeChild(n)}}(),getUID=function(){var e=0;return function(){return"ValumsAjaxUpload"+e++}}();window.AjaxUpload=function(e,t){this._settings={action:"upload.php",name:"userfile",data:{},autoSubmit:!0,responseType:!1,hoverClass:"hover",focusClass:"focus",disabledClass:"disabled",onChange:function(e,t){},onSubmit:function(e,t){},onComplete:function(e,t){}};for(var n in t)t.hasOwnProperty(n)&&(this._settings[n]=t[n]);e.jquery?e=e[0]:typeof e=="string"&&(/^#.*/.test(e)&&(e=e.slice(1)),e=document.getElementById(e));if(!e||e.nodeType!==1)throw new Error("Please make sure that you're passing a valid element");e.nodeName.toUpperCase()=="A"&&addEvent(e,"click",function(e){e&&e.preventDefault?e.preventDefault():window.event&&(window.event.returnValue=!1)}),this._button=e,this._input=null,this._disabled=!1,this.enable(),this._rerouteClicks()},AjaxUpload.prototype={setData:function(e){this._settings.data=e},disable:function(){addClass(this._button,this._settings.disabledClass),this._disabled=!0;var e=this._button.nodeName.toUpperCase();(e=="INPUT"||e=="BUTTON")&&this._button.setAttribute("disabled","disabled"),this._input&&(this._input.parentNode.style.visibility="hidden")},enable:function(){removeClass(this._button,this._settings.disabledClass),this._button.removeAttribute("disabled"),this._disabled=!1},_createInput:function(){var e=this,t=document.createElement("input");t.setAttribute("type","file"),t.setAttribute("name",this._settings.name),addStyles(t,{position:"absolute",right:0,margin:0,padding:0,fontSize:"480px",fontFamily:"sans-serif",cursor:"pointer"});var n=document.createElement("div");addStyles(n,{display:"block",position:"absolute",overflow:"hidden",margin:0,padding:0,opacity:0,direction:"ltr",zIndex:2147483583,cursor:"pointer"});if(n.style.opacity!=="0"){if(typeof n.filters=="undefined")throw new Error("Opacity not supported by the browser");n.style.filter="alpha(opacity=0)"}addEvent(t,"change",function(){if(!t||t.value==="")return;var n=fileFromPath(t.value);if(!1===e._settings.onChange.call(e,n,getExt(n))){e._clearInput();return}e._settings.autoSubmit&&e.submit()}),addEvent(t,"mouseover",function(){addClass(e._button,e._settings.hoverClass)}),addEvent(t,"mouseout",function(){removeClass(e._button,e._settings.hoverClass),removeClass(e._button,e._settings.focusClass),t.parentNode.style.visibility="hidden"}),addEvent(t,"focus",function(){addClass(e._button,e._settings.focusClass)}),addEvent(t,"blur",function(){removeClass(e._button,e._settings.focusClass)}),n.appendChild(t),document.body.appendChild(n),this._input=t},_clearInput:function(){if(!this._input)return;removeNode(this._input.parentNode),this._input=null,this._createInput(),removeClass(this._button,this._settings.hoverClass),removeClass(this._button,this._settings.focusClass)},_rerouteClicks:function(){var e=this;addEvent(e._button,"mouseover",function(){if(e._disabled)return;e._input||e._createInput();var t=e._input.parentNode;copyLayout(e._button,t),t.style.visibility="visible"})},_createIframe:function(){var e=getUID(),t=toElement('<iframe src="javascript:false;" name="'+e+'" />');return t.setAttribute("id",e),t.style.display="none",document.body.appendChild(t),t},_createForm:function(e){var t=this._settings,n=toElement('<form method="post" enctype="multipart/form-data"></form>');n.setAttribute("action",t.action),n.setAttribute("target",e.name),n.style.display="none",document.body.appendChild(n);for(var r in t.data)if(t.data.hasOwnProperty(r)){var i=document.createElement("input");i.setAttribute("type","hidden"),i.setAttribute("name",r),i.setAttribute("value",t.data[r]),n.appendChild(i)}return n},_getResponse:function(iframe,file){var toDeleteFlag=!1,self=this,settings=this._settings;addEvent(iframe,"load",function(){if(iframe.src=="javascript:'%3Chtml%3E%3C/html%3E';"||iframe.src=="javascript:'<html></html>';"){toDeleteFlag&&setTimeout(function(){removeNode(iframe)},0);return}var doc=iframe.contentDocument?iframe.contentDocument:window.frames[iframe.id].document;if(doc.readyState&&doc.readyState!="complete")return;if(doc.body&&doc.body.innerHTML=="false")return;var response;doc.XMLDocument?response=doc.XMLDocument:doc.body?(response=doc.body.innerHTML,settings.responseType&&settings.responseType.toLowerCase()=="json"&&(doc.body.firstChild&&doc.body.firstChild.nodeName.toUpperCase()=="PRE"&&(doc.normalize(),response=doc.body.firstChild.firstChild.nodeValue),response?response=eval("("+response+")"):response={})):response=doc,settings.onComplete.call(self,file,response),toDeleteFlag=!0,iframe.src="javascript:'<html></html>';"})},submit:function(){var e=this,t=this._settings;if(!this._input||this._input.value==="")return;var n=fileFromPath(this._input.value);if(!1===t.onSubmit.call(this,n,getExt(n))){this._clearInput();return}var r=this._createIframe(),i=this._createForm(r);removeNode(this._input.parentNode),removeClass(e._button,e._settings.hoverClass),removeClass(e._button,e._settings.focusClass),i.appendChild(this._input),i.submit(),removeNode(i),i=null,removeNode(this._input),this._input=null,this._getResponse(r,n),this._createInput()}}})();