isc_richtexteditor.js

javascript 很酷的类库

/*

  SmartClient Ajax RIA system
  Version 6.5/LGPL Development Only (2008-04-30)

  Copyright 2000-2007 Isomorphic Software, Inc. All rights reserved.
  "SmartClient" is a trademark of Isomorphic Software, Inc.

  LICENSE NOTICE
     INSTALLATION OR USE OF THIS SOFTWARE INDICATES YOUR ACCEPTANCE OF THE
     SOFTWARE EVALUATION LICENSE AGREEMENT. If you have received this file
     without an Isomorphic Software license file, please see:

         http://www.isomorphic.com/licenses/isc_eval_license_050316.html

     You are not required to accept this agreement, however, nothing else
     grants you the right to copy or use this software. Unauthorized copying
     and use of this software is a violation of international copyright law.

  EVALUATION ONLY
     This software is provided for limited evaluation purposes only. You must
     acquire a deployment license from Isomorphic Software in order to use
     the SmartClient system, or any portion thereof, in any non-evaluation
     application, including internal or non-commercial applications.

  PROPRIETARY & PROTECTED MATERIAL
     This software contains proprietary materials that are protected by
     contract and intellectual property law. YOU ARE EXPRESSLY PROHIBITED
     FROM ATTEMPTING TO REVERSE ENGINEER THIS SOFTWARE OR MODIFY THIS
     SOFTWARE FOR HUMAN READABILITY.

  CONTACT ISOMORPHIC
     For more information regarding license rights and restrictions, or to
     report possible license violations, please contact Isomorphic Software
     by email ([e-mail]) or web (www.isomorphic.com).

*/

if(window.isc&&window.isc.module_Core&&!window.isc.module_RichTextEditor){isc.module_RichTextEditor=1;isc._moduleStart=isc._RichTextEditor_start=(isc.timestamp?isc.timestamp():new Date().getTime());if(isc._moduleEnd&&(!isc.Log||(isc.Log && isc.Log.logIsDebugEnabled('loadTime')))){isc._pTM={ message:'RichTextEditor load/parse time: ' + (isc._moduleStart-isc._moduleEnd) + 'ms', category:'loadTime'};
if(isc.Log && isc.Log.logDebug)isc.Log.logDebug(isc._pTM.message,'loadTime')
else if(isc._preLog)isc._preLog[isc._preLog.length]=isc._pTM
else isc._preLog=[isc._pTM]}isc.ClassFactory.defineClass("RichTextCanvas","Canvas");isc.A=isc.RichTextCanvas;isc.A.FULL="full";isc.A.unsupportedErrorMessage="Rich text editing not supported in this browser";isc.A=isc.RichTextCanvas.getPrototype();isc.A.editable=true;isc.A.canSelectText=true;isc.A.canFocus=true;isc.A.$kn=false;isc.A.overflow=isc.Canvas.AUTO;isc.A.showCustomScrollbars=false;isc.A.fullSyntaxHiliteDelay=3000;isc.A.contents="";isc.A=isc.RichTextCanvas;isc.B=isc._allFuncs;isc.C=isc.B._maxIndex;isc.D=isc._funcClasses;isc.D[isc.C]=isc.A.Class;isc.B.push(isc.A.supportsRichTextEditing=function(){var _1=((isc.Browser.isSafari&&isc.Browser.safariVersion>=312)||(isc.Browser.isIE)||(isc.Browser.isMoz&&!isc.Browser.isCamino)||isc.Browser.isOpera);return _1}
);isc.B._maxIndex=isc.C+1;isc.A=isc.RichTextCanvas.getPrototype();isc.B=isc._allFuncs;isc.C=isc.B._maxIndex;isc.D=isc._funcClasses;isc.D[isc.C]=isc.A.Class;isc.A.$9z="<BR>";isc.A.$10j="Enter";isc.A.ignoreKeys=["Arrow_Up","Arrow_Down","Arrow_Left","Arrow_Right","Ctrl","Alt"];isc.B.push(isc.A.initWidget=function(){if(!isc.RichTextCanvas.supportsRichTextEditing()){var _1=isc.RichTextCanvas.unsupportedErrorMessage;this.logError(_1)}
if(this.overflow!=isc.Canvas.AUTO){this.logWarn('RichTextCanvas class currently only supports an overflow property of "auto"');this.overflow=isc.Canvas.AUTO}
this.Super("initWidget",arguments)}
,isc.A.$rw=function(){if(this.$22y()){var _1;if(this.$ks){_1="-moz-scrollbars-none";this.$r3=true}else{_1=this.$nz}
return _1}else return this.Super("$rw",arguments)}
,isc.A.getInnerHTML=function(){if(this.$22y()){return this.getIFrameHTML()}
return this.getContents(true)}
,isc.A.$22y=function(){return isc.Browser.isMoz||isc.Browser.isSafari}
,isc.A.getIFrameHTML=function(){var _1=isc.Browser.isSafari,_2=_1?isc.Page.getBlankFrameURL():null,_3=this.getContentFrameWidth()+isc.px,_4=this.getContentFrameHeight()+isc.px,_5=["<IFRAME STYLE='margin:0px;padding:0px;border:0px;width:",_3,";height:",_4,";'",(_1||true?" src='"+isc.Page.getURL("[HELPERS]empty.html")+"'":null)," ONLOAD='",this.getID(),".$22z();'"," ID='",this.getIFrameID(),"'></IFRAME>"];return _5.join(isc.emptyString)}
,isc.A.getBrowserSpellCheck=function(){return true}
,isc.A.$22z=function(){if(!this.$220)return;delete this.$220;if(!this.isDrawn())return;this.$221()}
,isc.A.getIFrameID=function(){return this.getID()+"$222"}
,isc.A.getContentDocument=function(){if(isc.Browser.isIE)return document;var _1=this.getContentWindow(),_2=_1?_1.document:null;if(_2==null){this.logDebug("Unable to get pointer to content document. Content may not be written out")}
return _2}
,isc.A.getContentBody=function(){var _1=this.getContentDocument();if(_1)return _1.body;return null}
,isc.A.getContentWindow=function(){var _1=this.getContentFrame();return _1?_1.contentWindow:null}
,isc.A.getContentFrame=function(){if(!this.$22y()||!this.isDrawn())return null;return isc.Element.get(this.getIFrameID())}
,isc.A.setOverflow=function(){}
,isc.A.getScrollHandle=function(){if(this.$22y())return this.getContentBody();return this.Super("getScrollHandle",arguments)}
,isc.A.$ux=function(){this.Super("$ux",arguments);if(!this.$22y()||this.overflow!=isc.Canvas.AUTO)return;var _1=this.getScrollHeight(),_2=this.getScrollWidth(),_3=this.getHeight(),_4=this.getWidth(),_5=this.getScrollbarSize(),_6=false,_7=false;if(_1>_3)_7=true;if(_6)_4-=_5;if(_2>_4)_6=true;if(_6&&!_7&&(_1>_3-_5))_7=true;this.hscrollOn=_6;this.vscrollOn=_7}
,isc.A.getContentFrameWidth=function(){return this.getWidth()-this.getHMarginBorderPad()}
,isc.A.getContentFrameHeight=function(){return this.getHeight()-this.getHMarginBorderPad()}
,isc.A.$q5=function(_1,_2,_3,_4){this.Super("$q5",arguments);if(this.$22y()){var _5=this.getContentFrame();if(_5!=null){var _6=this.getContentFrameWidth(),_7=this.getContentFrameHeight();_5.style.width=_6+"px";_5.style.height=_7+"px"}}}
,isc.A.getScrollWidth=function(_1){if((this.$su&&!_1)||!this.$22y())
return this.Super("getScrollWidth",arguments);var _2=this.getContentBody();if(!_2)return this.Super("getScrollWidth",arguments);this.$su=isc.Element.getScrollWidth(_2);return this.$su}
,isc.A.getScrollHeight=function(_1){if((this.$sz&&!_1)||!this.$22y())
return this.Super("getScrollHeight",arguments);var _2=this.getContentBody();if(!_2)return this.Super("getScrollHeight",arguments);this.$sz=isc.Element.getScrollHeight(_2);return this.$sz}
,isc.A.$223=function(){if(!isc.Browser.isIE)return;if(!this.$224())return;this.$225=document.selection.createRange();this.$226=this.$225.text}
,isc.A.$224=function(){if(!this.isDrawn())return false
if(!isc.Browser.isIE)return;if(this.$22y()){return(this.getActiveElement()==this.getContentFrame())}
var _1=this.getHandle();if(!_1)return false;var _2=isc.Element.$mk();if(!_2)return false;return(_1==_2||_1.contains(_2))}
,isc.A.selectionChange=function(){if(!this.$227)this.$223()}
,isc.A.$228=function(){if(!this.editable||!this.isDrawn()||!this.isVisible())return;if(isc.Browser.isIE){if(!this.$225)return;if(this.$226!=this.$225.text){this.$225.collapse(false)}
isc.EH.$mj=true;this.$225.select();delete isc.EH.$mj}}
,isc.A.setFocus=function(_1){this.$227=true;this.Super("setFocus",arguments);this.$227=false;if(this.$22y()){var _2=this.getContentWindow();if(!_2)return;if(_1)_2.focus()
else window.focus()}else{if(_1){this.$228()}}}
,isc.A.draw=function(){this.Super("draw",arguments);if(!isc.Browser.isSafari&&this.$22y())
isc.EventHandler.registerMaskableItem(this,true);if(this.$22y()){this.$220=true}else{this.$221()}}
,isc.A.redraw=function(){var _1=this.$22y();if(_1)this.$229();this.Super("redraw",arguments);if(_1)this.$220=true}
,isc.A.$221=function(){isc.HiddenFrame.$h7();var _1=this.$22y();if(_1){if(!this.$23a){this.$23a=new Function("event","var returnValue="+this.getID()+".$23b(event);"+"if(returnValue==false && event.preventDefault)event.preventDefault()")}
if(!this.$23c){this.$23c=new Function("event","var returnValue="+this.getID()+".$23d(event);"+"if(returnValue==false && event.preventDefault)event.preventDefault()")}
if(!this.$23e){this.$23e=new Function("event","var returnValue="+this.getID()+".$23f(event);"+"if(returnValue==false && event.preventDefault)event.preventDefault()")}
if(!this.$23g){this.$23g=new Function("event","var returnValue="+this.getID()+".$23h(event);"+"if(returnValue==false && event.preventDefault)event.preventDefault()")}
var _2=this.getContentWindow();_2.addEventListener("keypress",this.$23a,false);_2.addEventListener("keydown",this.$23c,false);_2.addEventListener("keyup",this.$23e,false);_2.addEventListener("scroll",this.$23g,false);var _3=this.getContentBody().style;_3.margin="0px";var _4=isc.Element.getStyleDeclaration(this.className);if(_4!=null){var _5=isc.Canvas.textStyleAttributes;for(var i=0;i<_5.length;i++){var _7=_5[i];_3[_7]=_4[_7]}}}
if(isc.Browser.isMoz){this.getContentBody().spellcheck=(!!this.getBrowserSpellCheck())}
var _8=(this.editable&&!this.isDisabled());if(!_1)this.$23i(_8);else{this.delayCall("$23i",[_8,true],0)}
if(this.syntaxHiliter&&!this.formattedOnce){this.formattedOnce=true;this.contents=this.hiliteAndCount(this.contents)}
this.$23j(this.contents)}
,isc.A.$23b=function(_1){isc.EH.getKeyEventProperties(_1);return isc.EH.handleKeyPress(_1,{keyTarget:this})}
,isc.A.$23d=function(_1){isc.EH.getKeyEventProperties(_1);return isc.EH.handleKeyDown(_1,{keyTarget:this})}
,isc.A.$23f=function(_1){isc.EH.getKeyEventProperties(_1);return isc.EH.handleKeyUp(_1,{keyTarget:this})}