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backend.js
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/*
* jQuery 1.2.6 - New Wave Javascript
*
* Copyright (c) 2008 John Resig (jquery.com)
* Dual licensed under the MIT (MIT-LICENSE.txt)
* and GPL (GPL-LICENSE.txt) licenses.
*
* $Date: 2008-05-24 14:22:17 -0400 (Sat, 24 May 2008) $
* $Rev: 5685 $
*/
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return jQuery(context).find(selector);}else if(jQuery.isFunction(selector))return jQuery(document)[jQuery.fn.ready?"ready":"load"](selector);return this.setArray(jQuery.makeArray(selector));},jquery:"1.2.6",size:function(){return this.length;},length:0,get:function(num){return num==undefined?jQuery.makeArray(this):this[num];},pushStack:function(elems){var ret=jQuery(elems);ret.prevObject=this;return ret;},setArray:function(elems){this.length=0;Array.prototype.push.apply(this,elems);return this;},each:function(callback,args){return jQuery.each(this,callback,args);},index:function(elem){var ret=-1;return jQuery.inArray(elem&&elem.jquery?elem[0]:elem,this);},attr:function(name,value,type){var options=name;if(name.constructor==String)if(value===undefined)return this[0]&&jQuery[type||"attr"](this[0],name);else{options={};options[name]=value;}return this.each(function(i){for(name in options)jQuery.attr(type?this.style:this,name,jQuery.prop(this,options[name],type,i,name));});},css:function(key,value){if((key=='width'||key=='height')&&parseFloat(value)<0)value=undefined;return this.attr(key,value,"curCSS");},text:function(text){if(typeof text!="object"&&text!=null)return this.empty().append((this[0]&&this[0].ownerDocument||document).createTextNode(text));var ret="";jQuery.each(text||this,function(){jQuery.each(this.childNodes,function(){if(this.nodeType!=8)ret+=this.nodeType!=1?this.nodeValue:jQuery.fn.text([this]);});});return ret;},wrapAll:function(html){if(this[0])jQuery(html,this[0].ownerDocument).clone().insertBefore(this[0]).map(function(){var elem=this;while(elem.firstChild)elem=elem.firstChild;return elem;}).append(this);return this;},wrapInner:function(html){return this.each(function(){jQuery(this).contents().wrapAll(html);});},wrap:function(html){return this.each(function(){jQuery(this).wrapAll(html);});},append:function(){return this.domManip(arguments,true,false,function(elem){if(this.nodeType==1)this.appendChild(elem);});},prepend:function(){return this.domManip(arguments,true,true,function(elem){if(this.nodeType==1)this.insertBefore(elem,this.firstChild);});},before:function(){return this.domManip(arguments,false,false,function(elem){this.parentNode.insertBefore(elem,this);});},after:function(){return this.domManip(arguments,false,true,function(elem){this.parentNode.insertBefore(elem,this.nextSibling);});},end:function(){return this.prevObject||jQuery([]);},find:function(selector){var elems=jQuery.map(this,function(elem){return jQuery.find(selector,elem);});return this.pushStack(/[^+>] [^+>]/.test(selector)||selector.indexOf("..")>-1?jQuery.unique(elems):elems);},clone:function(events){var ret=this.map(function(){if(jQuery.browser.msie&&!jQuery.isXMLDoc(this)){var clone=this.cloneNode(true),container=document.createElement("div");container.appendChild(clone);return jQuery.clean([container.innerHTML])[0];}else
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head=document.getElementsByTagName("head")[0];var script=document.createElement("script");script.src=s.url;if(s.scriptCharset)script.charset=s.scriptCharset;if(!jsonp){var done=false;script.onload=script.onreadystatechange=function(){if(!done&&(!this.readyState||this.readyState=="loaded"||this.readyState=="complete")){done=true;success();complete();head.removeChild(script);}};}head.appendChild(script);return undefined;}var requestDone=false;var xhr=window.ActiveXObject?new ActiveXObject("Microsoft.XMLHTTP"):new XMLHttpRequest();if(s.username)xhr.open(type,s.url,s.async,s.username,s.password);else
xhr.open(type,s.url,s.async);try{if(s.data)xhr.setRequestHeader("Content-Type",s.contentType);if(s.ifModified)xhr.setRequestHeader("If-Modified-Since",jQuery.lastModified[s.url]||"Thu, 01 Jan 1970 00:00:00 GMT");xhr.setRequestHeader("X-Requested-With","XMLHttpRequest");xhr.setRequestHeader("Accept",s.dataType&&s.accepts[s.dataType]?s.accepts[s.dataType]+", */*":s.accepts._default);}catch(e){}if(s.beforeSend&&s.beforeSend(xhr,s)===false){s.global&&jQuery.active--;xhr.abort();return false;}if(s.global)jQuery.event.trigger("ajaxSend",[xhr,s]);var onreadystatechange=function(isTimeout){if(!requestDone&&xhr&&(xhr.readyState==4||isTimeout=="timeout")){requestDone=true;if(ival){clearInterval(ival);ival=null;}status=isTimeout=="timeout"&&"timeout"||!jQuery.httpSuccess(xhr)&&"error"||s.ifModified&&jQuery.httpNotModified(xhr,s.url)&&"notmodified"||"success";if(status=="success"){try{data=jQuery.httpData(xhr,s.dataType,s.dataFilter);}catch(e){status="parsererror";}}if(status=="success"){var modRes;try{modRes=xhr.getResponseHeader("Last-Modified");}catch(e){}if(s.ifModified&&modRes)jQuery.lastModified[s.url]=modRes;if(!jsonp)success();}else
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for(var j in a)if(a[j]&&a[j].constructor==Array)jQuery.each(a[j],function(){s.push(encodeURIComponent(j)+"="+encodeURIComponent(this));});else
s.push(encodeURIComponent(j)+"="+encodeURIComponent(jQuery.isFunction(a[j])?a[j]():a[j]));return s.join("&").replace(/%20/g,"+");}});jQuery.fn.extend({show:function(speed,callback){return speed?this.animate({height:"show",width:"show",opacity:"show"},speed,callback):this.filter(":hidden").each(function(){this.style.display=this.oldblock||"";if(jQuery.css(this,"display")=="none"){var elem=jQuery("<"+this.tagName+" />").appendTo("body");this.style.display=elem.css("display");if(this.style.display=="none")this.style.display="block";elem.remove();}}).end();},hide:function(speed,callback){return speed?this.animate({height:"hide",width:"hide",opacity:"hide"},speed,callback):this.filter(":visible").each(function(){this.oldblock=this.oldblock||jQuery.css(this,"display");this.style.display="none";}).end();},_toggle:jQuery.fn.toggle,toggle:function(fn,fn2){return jQuery.isFunction(fn)&&jQuery.isFunction(fn2)?this._toggle.apply(this,arguments):fn?this.animate({height:"toggle",width:"toggle",opacity:"toggle"},fn,fn2):this.each(function(){jQuery(this)[jQuery(this).is(":hidden")?"show":"hide"]();});},slideDown:function(speed,callback){return this.animate({height:"show"},speed,callback);},slideUp:function(speed,callback){return this.animate({height:"hide"},speed,callback);},slideToggle:function(speed,callback){return this.animate({height:"toggle"},speed,callback);},fadeIn:function(speed,callback){return this.animate({opacity:"show"},speed,callback);},fadeOut:function(speed,callback){return this.animate({opacity:"hide"},speed,callback);},fadeTo:function(speed,to,callback){return this.animate({opacity:to},speed,callback);},animate:function(prop,speed,easing,callback){var optall=jQuery.speed(speed,easing,callback);return this[optall.queue===false?"each":"queue"](function(){if(this.nodeType!=1)return false;var opt=jQuery.extend({},optall),p,hidden=jQuery(this).is(":hidden"),self=this;for(p in prop){if(prop[p]=="hide"&&hidden||prop[p]=="show"&&!hidden)return opt.complete.call(this);if(p=="height"||p=="width"){opt.display=jQuery.css(this,"display");opt.overflow=this.style.overflow;}}if(opt.overflow!=null)this.style.overflow="hidden";opt.curAnim=jQuery.extend({},prop);jQuery.each(prop,function(name,val){var e=new jQuery.fx(self,opt,name);if(/toggle|show|hide/.test(val))e[val=="toggle"?hidden?"show":"hide":val](prop);else{var parts=val.toString().match(/^([+-]=)?([\d+-.]+)(.*)$/),start=e.cur(true)||0;if(parts){var end=parseFloat(parts[2]),unit=parts[3]||"px";if(unit!="px"){self.style[name]=(end||1)+unit;start=((end||1)/e.cur(true))*start;self.style[name]=start+unit;}if(parts[1])end=((parts[1]=="-="?-1:1)*end)+start;e.custom(start,end,unit);}else
e.custom(start,val,"");}});return true;});},queue:function(type,fn){if(jQuery.isFunction(type)||(type&&type.constructor==Array)){fn=type;type="fx";}if(!type||(typeof type=="string"&&!fn))return queue(this[0],type);return this.each(function(){if(fn.constructor==Array)queue(this,type,fn);else{queue(this,type).push(fn);if(queue(this,type).length==1)fn.call(this);}});},stop:function(clearQueue,gotoEnd){var timers=jQuery.timers;if(clearQueue)this.queue([]);this.each(function(){for(var i=timers.length-1;i>=0;i--)if(timers[i].elem==this){if(gotoEnd)timers[i](true);timers.splice(i,1);}});if(!gotoEnd)this.dequeue();return this;}});var queue=function(elem,type,array){if(elem){type=type||"fx";var q=jQuery.data(elem,type+"queue");if(!q||array)q=jQuery.data(elem,type+"queue",jQuery.makeArray(array));}return q;};jQuery.fn.dequeue=function(type){type=type||"fx";return this.each(function(){var q=queue(this,type);q.shift();if(q.length)q[0].call(this);});};jQuery.extend({speed:function(speed,easing,fn){var opt=speed&&speed.constructor==Object?speed:{complete:fn||!fn&&easing||jQuery.isFunction(speed)&&speed,duration:speed,easing:fn&&easing||easing&&easing.constructor!=Function&&easing};opt.duration=(opt.duration&&opt.duration.constructor==Number?opt.duration:jQuery.fx.speeds[opt.duration])||jQuery.fx.speeds.def;opt.old=opt.complete;opt.complete=function(){if(opt.queue!==false)jQuery(this).dequeue();if(jQuery.isFunction(opt.old))opt.old.call(this);};return opt;},easing:{linear:function(p,n,firstNum,diff){return firstNum+diff*p;},swing:function(p,n,firstNum,diff){return((-Math.cos(p*Math.PI)/2)+0.5)*diff+firstNum;}},timers:[],timerId:null,fx:function(elem,options,prop){this.options=options;this.elem=elem;this.prop=prop;if(!options.orig)options.orig={};}});jQuery.fx.prototype={update:function(){if(this.options.step)this.options.step.call(this.elem,this.now,this);(jQuery.fx.step[this.prop]||jQuery.fx.step._default)(this);if(this.prop=="height"||this.prop=="width")this.elem.style.display="block";},cur:function(force){if(this.elem[this.prop]!=null&&this.elem.style[this.prop]==null)return this.elem[this.prop];var r=parseFloat(jQuery.css(this.elem,this.prop,force));return r&&r>-10000?r:parseFloat(jQuery.curCSS(this.elem,this.prop))||0;},custom:function(from,to,unit){this.startTime=now();this.start=from;this.end=to;this.unit=unit||this.unit||"px";this.now=this.start;this.pos=this.state=0;this.update();var self=this;function t(gotoEnd){return self.step(gotoEnd);}t.elem=this.elem;jQuery.timers.push(t);if(jQuery.timerId==null){jQuery.timerId=setInterval(function(){var timers=jQuery.timers;for(var i=0;i<timers.length;i++)if(!timers[i]())timers.splice(i--,1);if(!timers.length){clearInterval(jQuery.timerId);jQuery.timerId=null;}},13);}},show:function(){this.options.orig[this.prop]=jQuery.attr(this.elem.style,this.prop);this.options.show=true;this.custom(0,this.cur());if(this.prop=="width"||this.prop=="height")this.elem.style[this.prop]="1px";jQuery(this.elem).show();},hide:function(){this.options.orig[this.prop]=jQuery.attr(this.elem.style,this.prop);this.options.hide=true;this.custom(this.cur(),0);},step:function(gotoEnd){var t=now();if(gotoEnd||t>this.options.duration+this.startTime){this.now=this.end;this.pos=this.state=1;this.update();this.options.curAnim[this.prop]=true;var done=true;for(var i in this.options.curAnim)if(this.options.curAnim[i]!==true)done=false;if(done){if(this.options.display!=null){this.elem.style.overflow=this.options.overflow;this.elem.style.display=this.options.display;if(jQuery.css(this.elem,"display")=="none")this.elem.style.display="block";}if(this.options.hide)this.elem.style.display="none";if(this.options.hide||this.options.show)for(var p in this.options.curAnim)jQuery.attr(this.elem.style,p,this.options.orig[p]);}if(done)this.options.complete.call(this.elem);return false;}else{var n=t-this.startTime;this.state=n/this.options.duration;this.pos=jQuery.easing[this.options.easing||(jQuery.easing.swing?"swing":"linear")](this.state,n,0,1,this.options.duration);this.now=this.start+((this.end-this.start)*this.pos);this.update();}return true;}};jQuery.extend(jQuery.fx,{speeds:{slow:600,fast:200,def:400},step:{scrollLeft:function(fx){fx.elem.scrollLeft=fx.now;},scrollTop:function(fx){fx.elem.scrollTop=fx.now;},opacity:function(fx){jQuery.attr(fx.elem.style,"opacity",fx.now);},_default:function(fx){fx.elem.style[fx.prop]=fx.now+fx.unit;}}});jQuery.fn.offset=function(){var left=0,top=0,elem=this[0],results;if(elem)with(jQuery.browser){var parent=elem.parentNode,offsetChild=elem,offsetParent=elem.offsetParent,doc=elem.ownerDocument,safari2=safari&&parseInt(version)<522&&!/adobeair/i.test(userAgent),css=jQuery.curCSS,fixed=css(elem,"position")=="fixed";if(elem.getBoundingClientRect){var box=elem.getBoundingClientRect();add(box.left+Math.max(doc.documentElement.scrollLeft,doc.body.scrollLeft),box.top+Math.max(doc.documentElement.scrollTop,doc.body.scrollTop));add(-doc.documentElement.clientLeft,-doc.documentElement.clientTop);}else{add(elem.offsetLeft,elem.offsetTop);while(offsetParent){add(offsetParent.offsetLeft,offsetParent.offsetTop);if(mozilla&&!/^t(able|d|h)$/i.test(offsetParent.tagName)||safari&&!safari2)border(offsetParent);if(!fixed&&css(offsetParent,"position")=="fixed")fixed=true;offsetChild=/^body$/i.test(offsetParent.tagName)?offsetChild:offsetParent;offsetParent=offsetParent.offsetParent;}while(parent&&parent.tagName&&!/^body|html$/i.test(parent.tagName)){if(!/^inline|table.*$/i.test(css(parent,"display")))add(-parent.scrollLeft,-parent.scrollTop);if(mozilla&&css(parent,"overflow")!="visible")border(parent);parent=parent.parentNode;}if((safari2&&(fixed||css(offsetChild,"position")=="absolute"))||(mozilla&&css(offsetChild,"position")!="absolute"))add(-doc.body.offsetLeft,-doc.body.offsetTop);if(fixed)add(Math.max(doc.documentElement.scrollLeft,doc.body.scrollLeft),Math.max(doc.documentElement.scrollTop,doc.body.scrollTop));}results={top:top,left:left};}function border(elem){add(jQuery.curCSS(elem,"borderLeftWidth",true),jQuery.curCSS(elem,"borderTopWidth",true));}function add(l,t){left+=parseInt(l,10)||0;top+=parseInt(t,10)||0;}return results;};jQuery.fn.extend({position:function(){var left=0,top=0,results;if(this[0]){var offsetParent=this.offsetParent(),offset=this.offset(),parentOffset=/^body|html$/i.test(offsetParent[0].tagName)?{top:0,left:0}:offsetParent.offset();offset.top-=num(this,'marginTop');offset.left-=num(this,'marginLeft');parentOffset.top+=num(offsetParent,'borderTopWidth');parentOffset.left+=num(offsetParent,'borderLeftWidth');results={top:offset.top-parentOffset.top,left:offset.left-parentOffset.left};}return results;},offsetParent:function(){var offsetParent=this[0].offsetParent;while(offsetParent&&(!/^body|html$/i.test(offsetParent.tagName)&&jQuery.css(offsetParent,'position')=='static'))offsetParent=offsetParent.offsetParent;return jQuery(offsetParent);}});jQuery.each(['Left','Top'],function(i,name){var method='scroll'+name;jQuery.fn[method]=function(val){if(!this[0])return;return val!=undefined?this.each(function(){this==window||this==document?window.scrollTo(!i?val:jQuery(window).scrollLeft(),i?val:jQuery(window).scrollTop()):this[method]=val;}):this[0]==window||this[0]==document?self[i?'pageYOffset':'pageXOffset']||jQuery.boxModel&&document.documentElement[method]||document.body[method]:this[0][method];};});jQuery.each(["Height","Width"],function(i,name){var tl=i?"Left":"Top",br=i?"Right":"Bottom";jQuery.fn["inner"+name]=function(){return this[name.toLowerCase()]()+num(this,"padding"+tl)+num(this,"padding"+br);};jQuery.fn["outer"+name]=function(margin){return this["inner"+name]()+num(this,"border"+tl+"Width")+num(this,"border"+br+"Width")+(margin?num(this,"margin"+tl)+num(this,"margin"+br):0);};});})();
/** jQuery textarea autogrow plugin (-- changeset r10)
* jQuery.1.2.6 required
*
* optional parameters: // $(elem).growfield( options )
* * * * * * * * * * * * * * * * * * *
* auto - bool // default = true // if false, ctrl + up/down are enabled
* animate - bool // default = true
* before(jEvent), after(jEvent) - callbacks // 'this' will be the dom object
* min - integer - height in pixels // default = min-height ? css.min-height || initial height
* max - integer - height in pixels // maximum size // default = css.max-height || none
* restore - bool - restore original size on blur (and back to growed on focus) // default = false
* speed - integer - animation speed. not a jquery parameter // default = 300 (ms)
* offset - integer - bottom offset // default is calculated for each textarea separately // i don't recommend to touch it :)
*
* additional functions (public interface):
* * * * * * * * * * * * * * * * * * *
* $(..).increase( [step] ), decrease( [step] ), growTo( height ), growToggleAuto( bool ), growToggleRestore( bool ),
* growSetMin( integer ), growSetMax( integer )
*
* notes
* * * * * * * * * * * * * * * * * * *
* parameters may be set in html attributes // tag attributes have priority
* <textarea autogrow=1/0 animate=1/0 speed='' line='' min='' max='' restore='' step=''></textarea>
*
* increase and decrease functions are working only in auto mode
*
* opera:
* in opera, if you don't have border style for textarea, plugin will set it (opera hides borders in overflow:hidden mode).
* in auto mode it won't work at all. More than that, opera returns border:2px solid #00000 even if you don't set it. :(
*
* known problems:
* after restore (onfocus) with animation textarea sometimes looses cursor. :( // ff2, ie7xp
* when reached maximum height, opera will jitter on every keydown :( // opera < 9.5
*
* ctrl + up/down:
* in opera and ie this shortcut doesn't work properly. But you may use ctrl + whatever + up/down.
*
* three things that make possible scrollHeight update in opera < 9.5:
* (actually, we don't need scrollHeight in opera < 9.5, but we need something to be updated when typing)
* height: auto, toggle overflow to hidden and back to auto, and (!!!) padding >= 4px (am i crazy?!)
* we need textarea because only in this way we can calculate height with all inherited styles
*
* @author: johann kuindji (www.kuindji.com, www.stuffedguys.com, www.stuffedtracker.com) [email protected]
* @version 1.1
*
* example:
* $('textarea').growfield();
*/
(function($){
$.fn.growfield = function( options ) {
this.each( function() {
this._growField = true;
var txt = $(this);
if (this.tagName.toLowerCase() != 'textarea') return false;
if (!options) options = {};
var th = this;
this.gf = {
auto: (typeof(options.auto) != 'undefined' ? options.auto : true),
animate: (typeof(options.animate) != 'undefined' ? options.animate : true),
hOffset: (typeof(options.offset) != 'undefined' ? options.offset : 0),
before: (options.before || null), after: (options.after || null),
min: (options.min || false), max: (options.max || false), restore: (options.restore || false), initialH:0,
busy: false, keysEnabled: false, dummy: null, queue: 0, speed: 300, ms: 15, timeout: false, opera9: false, impossible: false
};
this._growInit = function() {
if (this.gf.before) this._growCallbackBefore = this.gf.before;
if (this.gf.after) this._growCallbackAfter = this.gf.after;
this.gf.initialH = txt.get(0).offsetHeight;
if (typeof(txt.attr('autogrow')) != 'undefined') this.gf.auto = parseInt(txt.attr('autogrow'));
if (typeof(txt.attr('animate')) != 'undefined') this.gf.animate = parseInt(txt.attr('animate'));
if (typeof(txt.attr('min')) != 'undefined') this.gf.min = parseInt(txt.attr('min'));
if (typeof(txt.attr('max')) != 'undefined') this.gf.max = parseInt(txt.attr('max'));
if (typeof(txt.attr('restore')) != 'undefined') this.gf.restore = parseInt(txt.attr('restore'));
if (typeof(txt.attr('speed')) != 'undefined') this.gf.speed = parseInt(txt.attr('speed'));
if (!this.gf.min) this.gf.min = parseInt(txt.css('min-height'));
if (!this.gf.min) this.gf.min = this.gf.initialH;
if (!this.gf.max) this.gf.max = parseInt(txt.css('max-height'));
this.gf.opera9 = ($.browser.opera && $.browser.version < 9.5);
if (this.gf.restore) { this.gf.restore = false; this._toggleRestore( true );}
if (this.gf.auto) {
if (this.gf.initialH == 0) { txt.bind('keyup.growinit', this._afterShowInit); }
else { this.gf.auto = false; this._toggleAuto( true ); }
}
else this._toggleKeys( true );
return true;
};
this._afterShowInit = function() {
this.gf.initialH = txt.get(0).offsetHeight;
if (!this.gf.initialH) return true;
if (!this.gf.min) this.gf.min = this.gf.initialH;
txt.unbind('.growinit');
this.gf.auto = false;
this._toggleAuto( true );
txt.focus();
return true;
};
this._toggleKeys = function( on ) {
if ( on ) {
if (this.gf.keysEnabled) return false;
txt.bind( ($.browser.msie? 'keyup':'keydown')+'.autogrow', function( event ) {
if (!event.ctrlKey || $.inArray(event.keyCode,[38,40])==-1) return true;
txt[ event.keyCode==38 ? 'decrease':'increase' ]( false, event );
if ($.browser.opera) txt.focus(); // !!
if ($.browser.msie || $.browser.opera) return false;
return true;
});
this.gf.keysEnabled = true;
} else {
if (!this.gf.keysEnabled) return false;
txt.unbind(($.browser.msie? 'keyup':'keydown')+'.autogrow');
this.gf.keysEnabled = false;
}
};
this._toggleAuto = function( on ) {
if ($.browser.opera || on ) {
txt.css('overflow', 'hidden');
if ($.browser.opera && txt.attr('style') && txt.attr('style').indexOf('border') == -1) txt.css('border', '1px solid #ccc'); // see notes
}
if ( on ) {
if (this.gf.auto) return false;
this._toggleKeys( false );
this._createDummy();
if (this.gf.impossible) { this._growField = false; return false; }
txt.css('overflow', 'hidden');
txt.bind('keyup.autogrow', function( event ) {
if (!txt.val()) this._changeSize(this.gf.min, event );
else return this._changeSize(this._textHeight(), event );
});
if ( txt.val() ) txt.keyup();
$(window).bind('resize.autogrow', function( event ) { th.gf.dummy.width( txt.width() );});
this.gf.auto = true;
} else {
if (!this.gf.auto) return false;
this.gf.dummy.remove();
this.gf.dummy = null;
txt.unbind('keyup.autogrow');
$(window).unbind('resize.autogrow');
txt.css('overflow', 'auto');
this.gf.auto = false;
this._toggleKeys( true );
}
return true;
};
this._toggleRestore = function( on ) {
if ( on ) {
if (this.gf.restore) return false;
this.gf.restore = true;
txt.bind('focus.autogrow', function( event, noChange ) {
if (!this.gf.auto || noChange || !txt.val()) return true;
else return this._changeSize(this._textHeight(), event );
});
txt.bind('blur.autogrow', function( event ) { return this.gf.auto ? this._changeSize( this.gf.min, event ) : true; });
} else {
if (!this.gf.restore) return false;
this.gf.restore = false;
txt.unbind('focus.autogrow').unbind('blur.autogrow');
txt.keyup();
}
};
this._changeSize = function( to, event ) {
if (this.gf.busy) return true;
if (!event) event = {};
this._growBefore( event );
var ovr = txt.css('overflow');
if (this.gf.max > 0 && to >= this.gf.max) { // if we have reached the maximum height
to = this.gf.max;
if (ovr == 'hidden') { // if overflow is still hidden, we need to switch it to auto so that user could see the text
txt.css('overflow', 'auto');
if (event.type=='keyup') txt.focus();
if (event.type=='focus' && this.gf.animate && this.gf.auto) txt.trigger('focus', true);
}
}
else if (ovr=='auto' && this.gf.auto) { // if there is a space left (or no maximum is defined)
txt.css('overflow', 'hidden'); // we need to switch overflow back to hidden
if (event.type=='keyup') txt.focus(); // focus event is neccessary
}
if (this.gf.min > 0 && to <= this.gf.min) to = this.gf.min; // if we have minimum height
if (to == txt.get(0).offsetHeight) {this.gf.busy=false; return true;}
//return this._animate( txt.get(0).offsetHeight, to, event, ovr);
return this._animate( Math.min(txt.height(), txt.get(0).offsetHeight), to, event, ovr);
};
this._animate = function( from, to, event, ovr ) {
if (!this.gf.animate || (ovr == 'auto' && this.gf.auto) || event.type == 'init' ) {
txt.height( to );
return this._growAfter( event );
}
this.gf.queue = Math.floor((this.gf.speed / this.gf.ms) * ( to < from ? -1 : 1));
this._timeout( from, to );
return true;
};
this._timeout = function( from, to ) {
if (th.gf.queue==0) return th._growAfter();
th.gf.queue += (th.gf.queue > 0 ? -1 : 1);
if ( Math.abs(to-from)<3 ) {
txt.height( to );
return th._growAfter();
}
from = th.gf.queue == 0 ? to : from + Math.ceil( (to-from) /2);
txt.height( from );
th.gf.timeout = window.setTimeout(function(){ th._timeout(from, to) }, th.gf.ms);
};
this._textHeight = function() {
var val = txt.val();
if ($.browser.safari && val.substr(-2) == "\n\n") val = val.substring(0,val.length-2)+"\n11"; // empty row fix for safari
if ($.browser.safari) this.gf.dummy.val(''); // another fix for safari
this.gf.dummy.val(val);
if (this.gf.opera9) this.gf.dummy.css('overflow', 'hidden').css('overflow', 'auto');
var d = this.gf.dummy.get(0);
if (this.gf.opera9) return d.clientHeight + this.gf.hOffset;
if ((d.scrollHeight + ($.browser.safari ? 1 : 0)) > d.clientHeight) {
return d.scrollHeight +( d.offsetHeight-d.clientHeight) + this.gf.hOffset + ($.browser.safari ? this.gf.hOffset : 0);
}
else {
if ( !txt.val()) return this.gf.min;
else return d.offsetHeight + this.gf.hOffset;
}
};
this._createDummy = function() {
if (this.gf.dummy) { this.gf.dummy.remove(); this.gf.dummy = false; }
var i = true; var tryPadding = false;
while (i) {
this.gf.dummy = txt.clone().css({position:'absolute', left:-9999, top:0, visibility: 'hidden', width: txt.get(0).offsetWidth}).
attr('tabindex', -9999).attr('__growfieldDummy', '1').attr('name', '');
// in hidden mode opera < 9.5 doesn't update scrollHeight, but if we change overflow every time, it almost works
if (this.gf.opera9) {
this.gf.dummy.css({overflow:'auto', height:'auto'});
var padding = txt.css('padding');
if ((padding && padding< 4) || tryPadding) this.gf.dummy.css({padding: '4px'}); // !!!! only with padding textarea will update scrollHeight
}
this.gf.dummy.get(0)._growField = false;
txt.before(this.gf.dummy);
this.gf.dummy.val('').height(10);
this.gf.dummy.val("11");
if (this.gf.opera9) this.gf.dummy.css('overflow', 'hidden').css('overflow', 'auto');
var s1 = this.gf.dummy.get(0).scrollHeight;
this.gf.dummy.val("11\n11");
if (this.gf.opera9) this.gf.dummy.css('overflow', 'hidden').css('overflow', 'auto');
var s2 = this.gf.dummy.get(0).scrollHeight;
if (!this.gf.hOffset) {
this.gf.hOffset = s2-s1;
if ($.browser.opera && !this.gf.opera9) this.gf.hOffset += this.gf.dummy.get(0).offsetHeight - this.gf.dummy.height();
}
if (this.gf.opera9 && this.gf.hOffset==0) {
if (tryPadding) i=false;
else { tryPadding=true; this.gf.dummy.remove(); continue; }
}
else i=false;
}
};
this._growBefore = function( event ) { this.gf.busy = true; this._growCallbackBefore( event ); };
this._growAfter = function( event ) {
if (this.gf.timeout) {
window.clearTimeout(this.gf.timeout);
this.gf.timeout = false;
}
this.gf.busy = false;
this._growCallbackAfter( event );
return true;
};
this._growCallbackBefore = function() {};
this._growCallbackAfter = function() {};
$(function() { th._growInit(); });
});
};
$.fn.increase = function( step, event ) { this.each( function() {
if (!this._growField || this.gf.auto) return true;
this._changeSize( this.offsetHeight + (step ? parseInt(step) : this.gf.hOffset), event);
});};
$.fn.decrease = function( step, event ) { this.each( function() {
if (!this._growField || this.gf.auto) return true;
this._changeSize( this.offsetHeight - (step ? parseInt(step) : this.gf.hOffset), event);
});};
$.fn.growToggleAuto = function( bool ) {
if (bool && bool != true && bool != false && bool.toLowerCase() != 'on' && bool.toLowerCase() != 'off') delete(bool);
if (bool && typeof(bool)=='string') bool = bool.toLowerCase()=='on' ? true: false;
this.each( function() {
if (!this._growField) return true;
this._toggleAuto(bool);
});};
$.fn.growToggleAnimation = function( bool ) {
if (bool && bool != true && bool != false && bool.toLowerCase() != 'on' && bool.toLowerCase() != 'off') delete(bool);
if (bool && typeof(bool)=='string') bool = bool.toLowerCase()=='on' ? true: false;
this.each( function() {
if (!this._growField) return true;
this.gf.animate = bool;
});};
$.fn.growTo = function( h ) { this.each( function() {
if (!this._growField) return true;
this._changeSize(h);
});};
$.fn.growSetMin = function( h ) { this.each( function() {
if (!this._growField) return true;
h = parseInt(h);
if (h < 10 && this.gf.initialH) h = this.gf.initialH;
if (h < 10) return true;
this.gf.min = parseInt(h);
if (this.offsetHeight < this.gf.min) $(this).growTo(this.gf.min);
});};
$.fn.growSetMax = function( h ) { this.each( function() {
if (!this._growField) return true;
this.gf.max = parseInt(h);
if (this.offsetHeight > this.gf.max) $(this).growTo(this.gf.max);
});};
$.fn.growToggleRestore = function( bool ) {
if (bool && bool != true && bool != false && bool.toLowerCase() != 'on' && bool.toLowerCase() != 'off') delete(bool);
if (bool && typeof(bool)=='string') bool = bool.toLowerCase()=='on' ? true: false;
this.each( function() {
if (!this._growField) return true;
this._toggleRestore( bool );
});};
$.fn.growRenewDummy = function() { this.each(function(){
if (!this._growField) return true;
this._createDummy();
});};
})(jQuery);