lib/dijit/form/_ExpandingTextAreaMixin.js

   1 //>>built
   2 define("dijit/form/_ExpandingTextAreaMixin",["dojo/_base/declare","dojo/dom-construct","dojo/_base/lang","dojo/_base/window"],function(_1,_2,_3,_4){var _5;return _1("dijit.form._ExpandingTextAreaMixin",null,{_setValueAttr:function(){this.inherited(arguments);this.resize();},postCreate:function(){this.inherited(arguments);var _6=this.textbox;if(_5==undefined){var te=_2.create("textarea",{rows:"5",cols:"20",value:" ",style:{zoom:1,overflow:"hidden",visibility:"hidden",position:"absolute",border:"0px solid black",padding:"0px"}},_4.body(),"last");_5=te.scrollHeight>=te.clientHeight;_4.body().removeChild(te);}this.connect(_6,"onscroll","_resizeLater");this.connect(_6,"onresize","_resizeLater");this.connect(_6,"onfocus","_resizeLater");_6.style.overflowY="hidden";this._estimateHeight();this._resizeLater();},_onInput:function(e){this.inherited(arguments);this.resize();},_estimateHeight:function(){var _7=this.textbox;_7.style.height="auto";_7.rows=(_7.value.match(/\n/g)||[]).length+2;},_resizeLater:function(){this.defer("resize");},resize:function(){function _8(){var _9=false;if(_a.value===""){_a.value=" ";_9=true;}var sh=_a.scrollHeight;if(_9){_a.value="";}return sh;};var _a=this.textbox;if(_a.style.overflowY=="hidden"){_a.scrollTop=0;}if(this.busyResizing){return;}this.busyResizing=true;if(_8()||_a.offsetHeight){var _b=_a.style.height;if(!(/px/.test(_b))){_b=_8();_a.rows=1;_a.style.height=_b+"px";}var _c=Math.max(Math.max(_a.offsetHeight,parseInt(_b))-_a.clientHeight,0)+_8();var _d=_c+"px";if(_d!=_a.style.height){_a.rows=1;_a.style.height=_d;}if(_5){var _e=_8(),_f=_e,_10=_a.style.minHeight,_11=4,_12;_a.style.minHeight=_d;_a.style.height="auto";while(_c>0){_a.style.minHeight=Math.max(_c-_11,4)+"px";_12=_8();var _13=_f-_12;_c-=_13;if(_13<_11){break;}_f=_12;_11<<=1;}_a.style.height=_c+"px";_a.style.minHeight=_10;}_a.style.overflowY=_8()>_a.clientHeight?"auto":"hidden";}else{this._estimateHeight();}this.busyResizing=false;}});});