// widthOfTextframe2ItsContent.jsx  
  
if (app.selection.length > 0 )  
{  
	for (var i = 0; i < app.selection.length; i++ ) 
	{ 
		if (app.selection[i].constructor.name == 'TextFrame') 
		{ 
			var gb = app.selection[i].geometricBounds;  
			app.selection[i].parentStory.contents = round_num(gb[3]-gb[1], 2) + ' ' + get_units();   
		} 
	} 
}  
  
function round_num(aNum, aDec)    
{    
	return String(Math.round(aNum * Math.pow(10, aDec))/Math.pow(10, aDec)).replace('.', ',') ;  
}    
  
function get_units()  
{  
	switch (app.activeDocument.viewPreferences.horizontalMeasurementUnits)  
	{  
		case 2054187363:  
			return 'p';  
		break;  
		case 2054188905:  
			return 'Pt';  
		break;  
		case 2053729891:  
			return 'Zoll';  
		break;  
		case 2053729892:  
			return 'Zoll';  
		break;  
		case 2053991795:  
			return 'mm';  
		break;  
		case 2053336435:  
			return 'cm';  
		break;  
		case 2053335395:  
			return 'c';  
		break;  
		case 2051106676:  
			return 'ag';  
		break;		  
		default:  
			return "";  
		break;	  
	}  
} 

AFTER_SELECTION_CHANGED 

AFTER_SELECTION_ATTRIBUTE_CHANGED 

#targetengine "session2" 
 
main(); 
 
function myafterActivate(myEvent){alert ("afterActivate");} 
function myafterClose(myEvent){alert ("afterClose");} 
function myafterContextChanged(myEvent){alert ("afterContextChanged");} 
function myafterDelete(myEvent){alert ("afterDelete");} 
function myafterEmbed(myEvent){alert ("afterEmbed");} 
function myafterInvoke(myEvent){alert ("afterInvoke");} 
function myafterLinksChanged(myEvent){alert ("afterLinksChanged");} 
function myafterMove(myEvent){alert ("afterMove");} 
function myafterNew(myEvent){alert ("afterNew");} 
function myafterOpen(myEvent){alert ("afterOpen");} 
function myafterPlace(myEvent){alert ("afterPlace");} 
function myafterQuit(myEvent){alert ("afterQuit");} 
function myafterSelectionAttributeChanged(myEvent){alert ("afterSelectionAttributeChanged");} 
function myafterSelectionChanged(myEvent){alert ("afterSelectionChanged");} 
function myafterUnembed(myEvent){alert ("afterUnembed");} 
function myafterUpdate(myEvent){alert ("afterUpdate");} 
function mybeforeClose(myEvent){alert ("beforeClose");} 
function mybeforeDeactivate(myEvent){alert ("beforeDeactivate");} 
function mybeforeDelete(myEvent){alert ("beforeDelete");} 
function mybeforeDisplay(myEvent){alert ("beforeDisplay");} 
function mybeforeEmbed(myEvent){alert ("beforeEmbed");} 
function mybeforeInvoke(myEvent){alert ("beforeInvoke");} 
function mybeforeMove(myEvent){alert ("beforeMove");} 
function mybeforePlace(myEvent){alert ("beforePlace");} 
function mybeforeQuit(myEvent){alert ("beforeQuit");} 
function mybeforeUnembed(myEvent){alert ("beforeUnembed");} 
function mybeforeUpdate(myEvent){alert ("beforeUpdate");} 
function myonInvoke(myEvent){alert ("onInvoke");} 
 
 
function main() { 
app.activeDocument.addEventListener("afterActivate", myafterActivate); 
app.activeDocument.addEventListener("afterClose", myafterClose); 
app.activeDocument.addEventListener("afterContextChanged", myafterContextChanged); 
app.activeDocument.addEventListener("afterDelete", myafterDelete); 
app.activeDocument.addEventListener("afterEmbed", myafterEmbed); 
app.activeDocument.addEventListener("afterInvoke", myafterInvoke); 
app.activeDocument.addEventListener("afterLinksChanged", myafterLinksChanged); 
app.activeDocument.addEventListener("afterMove", myafterMove); 
app.activeDocument.addEventListener("afterNew", myafterNew); 
app.activeDocument.addEventListener("afterOpen", myafterOpen); 
app.activeDocument.addEventListener("afterPlace", myafterPlace); 
app.activeDocument.addEventListener("afterQuit", myafterQuit); 
app.activeDocument.addEventListener("afterSelectionAttributeChanged", myafterSelectionAttributeChanged); 
app.activeDocument.addEventListener("afterSelectionChanged", myafterSelectionChanged); 
app.activeDocument.addEventListener("afterUnembed", myafterUnembed); 
app.activeDocument.addEventListener("afterUpdate", myafterUpdate); 
app.activeDocument.addEventListener("beforeClose", mybeforeClose); 
app.activeDocument.addEventListener("beforeDeactivate", mybeforeDeactivate); 
app.activeDocument.addEventListener("beforeDelete", mybeforeDelete); 
app.activeDocument.addEventListener("beforeDisplay", mybeforeDisplay); 
app.activeDocument.addEventListener("beforeEmbed", mybeforeEmbed); 
app.activeDocument.addEventListener("beforeInvoke", mybeforeInvoke); 
app.activeDocument.addEventListener("beforeMove", mybeforeMove); 
app.activeDocument.addEventListener("beforePlace", mybeforePlace); 
app.activeDocument.addEventListener("beforeQuit", mybeforeQuit); 
app.activeDocument.addEventListener("beforeUnembed", mybeforeUnembed); 
app.activeDocument.addEventListener("beforeUpdate", mybeforeUpdate); 
app.activeDocument.addEventListener("onInvoke", myonInvoke); 
} 

#targetengine "session2"  
  
main();  
  
function myafterSelectionAttributeChanged(myEvent){ 
	if (app.selection.length > 0 &&  app.selection[0].constructor.name == 'TextFrame')  { 
		var tf = app.selection[0]; 
		var gb = tf.geometricBounds;  
		tf.parentStory.contents = round_num(gb[3]-gb[1], 2) + ' ' + get_units();  		 
	} 
}  
 
  
function main() {  
	app.activeDocument.addEventListener("afterSelectionAttributeChanged",  myafterSelectionAttributeChanged);  
}  
 
 
 
  
function round_num(aNum, aDec)    
{    
	return String(Math.round(aNum * Math.pow(10, aDec))/Math.pow(10, aDec)).replace('.', ',') ;  
}    
  
function get_units()  
{  
	switch (app.activeDocument.viewPreferences.horizontalMeasurementUnits)  
	{  
		case 2054187363:  
			return 'p';  
		break;  
		case 2054188905:  
			return 'Pt';  
		break;  
		case 2053729891:  
			return 'Zoll';  
		break;  
		case 2053729892:  
			return 'Zoll';  
		break;  
		case 2053991795:  
			return 'mm';  
		break;  
		case 2053336435:  
			return 'cm';  
		break;  
		case 2053335395:  
			return 'c';  
		break;  
		case 2051106676:  
			return 'ag';  
		break;		  
		default:  
			return "";  
		break;	  
	}  
}