// Updatecrossrefs.js 
// Updates cross references made with hyperlinks 
// the hyperlink destination is where the reference refers to 
// the hyperlink sourcetext is the text that will be updated (like see xx) 
// If a book is open, the book will be handled, 
// if no book is open, the active document will be handled. 
// Made by Teus de Jong, last version April 10, 2006 
 
if (app.books.length == 0){ 
	if (app.documents.length == 0){ 
		errorExit('No documents are open'); 
	} else { 
		nrofdocs = 1; 
	} 
} else { 
	nrofdocs = app.books[0].bookContents.length; 
	for (i = nrofdocs - 1; i > -1; i--) { 
		app.open(File(app.books[0].bookContents[i].fullName)); 
	} 
} 
doc = app.activeDocument; 
for (d = 1; d <= nrofdocs; d++){ 
	for (i = 0; i < doc.hyperlinks.length; i++){ 
		hyper = doc.hyperlinks[i]; 
  		// leave ID's own internal markers alone  
		if (hyper.name.substring(0, 1) == '.'){continue}  
  		// leave hyperlinks to URLs alone 
  		try { 
			if (hyper.destination.constructor.name == 'HyperlinkURLDestination'){continue} 
		} catch (e) { 
			hyper.showSource(); 
			errorExit('Selected hyperlink has undefined destination'); 
		} 
		if (hyper.destination.constructor.name == 'HyperlinkTextDestination'){ 
			s = getParentPageName(hyper.destination.destinationText); 
 		} else {  
 			// try/catch added to allow for hyperlinks that have lost their destination -- Dave 
 			try { 
		  		s = hyper.destination.destinationPage.name; 
		  	} catch (e) { continue } 
		}  
		if (s != ''){ 
			// Check to see if update needed; saves a lot of time when processing large books -- Dave 
			if (hyper.source.sourceText.contents != s) { 
				hyper.source.sourceText.contents = s; 
			} 
		} 
	} 
	if (d >= nrofdocs){ 
		break; 
	} 
	doc = app.open(app.books[0].bookContents[d].fullName); 
}   
 
function getParentPageName(txt){ 
	try {   
		var myFrame = getParentTextFrame(txt);  
		var pag = myFrame.parent;  
		while (pag.constructor.name != 'Page'){  
			// in case the reference is in an inline, the parent of the frame is a character 
			if (pag.constructor.name == 'Character'){ 
				pag = getParentTextFrame(pag); 
			} 
			// in case the chain goes sour, back out 
			if (pag.constructor.name == 'Application'){ 
				throw 'Error'; 
			} 
			pag = pag.parent; 
		} 
		s = pag.name;  
	}  
	catch (e) {  
		alert('Could not catch page.\nCheck destination names and existence.');  
		s = '';  
	} 
	return(s); 
} 
 
function getParentTextFrame(x){ 
	if(app.version == 3){  
		return(x.parentTextFrame); 
	} 
	else {  
		return(x.parentTextFrames[0]); 
	} 
} 
 
function errorExit(s){ 
	alert(s); 
	exit(); 
} 

// Updatecrossrefs-CS5a.jsx  
  
if (app.books.length == 0){  
	if (app.documents.length == 0){  
		errorExit('No documents are open');  
	} else {  
		nrofdocs = 1;  
	}  
} else {  
	nrofdocs = app.books[0].bookContents.length;  
	for (i = nrofdocs - 1; i > -1; i--) {  
		app.open(File(app.books[0].bookContents[i].fullName));  
	}  
}  
doc = app.activeDocument;  
for (d = 1; d <= nrofdocs; d++){  
	for (i = 0; i < doc.hyperlinks.length; i++){  
		hyper = doc.hyperlinks[i];  
  		// leave ID's own internal markers alone   
		if (hyper.name.substring(0, 1) == '.'){continue}   
  		// leave hyperlinks to URLs alone  
  		try {  
			if (hyper.destination.constructor.name == 'HyperlinkURLDestination'){continue}  
		} catch (e) {  
			hyper.showSource();  
			errorExit('Selected hyperlink has undefined destination');  
		}  
		if (hyper.destination.constructor.name == 'HyperlinkTextDestination'){  
			s = getParentPageName(hyper.destination.destinationText);  
 		} else {   
 			// try/catch added to allow for hyperlinks that have lost their destination -- Dave  
 			try {  
		  		s = hyper.destination.destinationPage.name;  
		  	} catch (e) { continue }  
		}   
		if (s != ''){  
			// Check to see if update needed; saves a lot of time when processing large books -- Dave  
			if (hyper.source.sourceText.contents != s) {  
				hyper.source.sourceText.contents = s;  
			}  
		}  
	}  
	if (d >= nrofdocs){  
		break;  
	}  
	doc = app.open(app.books[0].bookContents[d].fullName);  
}    
 
// function developed by Dave Saunders - as findPage() - 
// http://forums.adobe.com/message/2791413#2791413 
// extended by Gregor (grefel = Gregor Fellenz?) 
// http://forums.adobe.com/message/3003131#3003131 
// and lightly adapted to this script by Martin Fischer 
function getParentPageName(theObj) { 
     if (theObj.hasOwnProperty("baseline")) { 
          theObj = theObj.parentTextFrames[0]; 
     } 
     while (theObj != null) { 
          if (theObj.hasOwnProperty ("parentPage")) return  theObj.parentPage.name; 
          var whatIsIt = theObj.constructor; 
          switch (whatIsIt) { 
               case Page : return theObj.name; 
               case Character : theObj = theObj.parentTextFrames[0]; break; 
               case Footnote :; // drop through 
               case Cell : theObj = theObj.insertionPoints[0].parentTextFrames[0]; break; 
               case Note : theObj = theObj.storyOffset.parentTextFrames[0]; break; 
               case XMLElement :  if (theObj.insertionPoints[0] != null) { theObj =  theObj.insertionPoints[0].parentTextFrames[0]; break; } 
               case Application : return null; 
               default: theObj = theObj.parent; 
          } 
          if (theObj == null) return null; 
     } 
     return theObj 
} // end findPage 
 
  
//~ function getParentPageName(txt){  
//~ 	try {    
//~ 		var myFrame = getParentTextFrame(txt);   
//~ 		var pag = myFrame.parent;   
//~ 		while (pag.constructor.name != 'Page'){   
//~ 			// in case the reference is in an inline, the parent of the frame is a character  
//~ 			if (pag.constructor.name == 'Character'){  
//~ 				pag = getParentTextFrame(pag);  
//~ 			}  
//~ 			// in case the chain goes sour, back out  
//~ 			if (pag.constructor.name == 'Application'){  
//~ 				throw 'Error';  
//~ 			}  
//~ 			pag = pag.parent;  
//~ 		}  
//~ 		s = pag.name;   
//~ 	}   
//~ 	catch (e) {   
//~ 		alert('Could not catch page.\nCheck destination names and existence.');   
//~ 		s = '';   
//~ 	}  
//~ 	return(s);  
//~ }  
  
function getParentTextFrame(x){  
	if(app.version == 3){   
		return(x.parentTextFrame);  
	}  
	else {   
		return(x.parentTextFrames[0]);  
	}  
}  
  
function errorExit(s){  
	alert(s);  
	exit();  
} 

var d = app.activeDocument; 
 
// Einrichten eines Querverweisformats auf die Seitenzahl 
var cr_name = '_Seitenverweis'; 
var cr_format = d.crossReferenceFormats.itemByName(cr_name); 
if (cr_format == null) 
{	 
	cr_format =  d.crossReferenceFormats.add({name:cr_name}); 
	cr_format.buildingBlocks.add({blockType:BuildingBlockTypes.PAGE_NUMBER_BUILDING_BLOCK}); 
} 
//~ var _counter = 0; 
 
// Schleife durch die Hyperlinks 
for (var i = d.hyperlinks.length-1; i >= 0; i--) 
{ 
    var h =  d.hyperlinks.item(i); 
    // Beschränkung auf Text-Hyperlinks mit Textzielen (Textanker) 
    if (h.source.constructor.name == 'HyperlinkTextSource' && h.destination.constructor.name == 'HyperlinkTextDestination') 
    { 
        var  source_text = h.source.sourceText; 
        var ch_length = source_text.characters.length; 
        try 
        { 
            h.source = d.crossReferenceSources.add({sourceText: source_text.parentStory.insertionPoints.item( source_text.insertionPoints.lastItem().index), appliedFormat: cr_format});; 
//~             source_text.parentStory.characters.itemByRange( source_text.index, ch_length-1).remove(); 
         } 
        catch(e) 
        { 
//~             $.writeln( 'e: ' + e); 
        } 
        // Counter zum Beenden nach bestimmter Zahl konvertierter Hyperlinks 
//~         if (_counter++ == 5) 
//~             exit(); 
    } 
}