CS3 JS Double Page Spread

Question

I'm trying to see if pages have items on them before sending off the page using:
if(myDocument.pages[myPageName-1].pageItems.length==0){
This works well until I get a double page spread item.  The element sits on the left hand page and extends onto the right hand page but ID only reads the link as being on the left hand page not the right.
Is there a better way to check if pages are blank?
Cheers John.

Answer 1

InDesign assumes that a pageItem ‘belongs’ to a page if the geometric bounds of the page contains the center point of the pageItem bounding box. So you can have a pageitem located on page N that overlaps some other pages in the same spread. Actually the most relevant geometric container is the spread. To know if a page is really blank, you can traverse the parent spread page items collection and check if the bounds of one object intersects your target page.
Try this:
Page.prototype.hasPageItems = function()
     var sprd, pItems, b, ib;
     // check if the page contains a direct page item
     if( this.pageItems.length > 0 ) return true;
     // check if the page intersects a spread page item
     if( (sprd=this.parent).pageItems.length > 0 )
          b = this.bounds;
          pItems = sprd.pageItems;
          for( i=pItems.length-1 ; i>=0 ; --i )
               ib = pItems[i].geometricBounds;
               if( b[0]<=ib[2] && ib[0]<=b[2] &&
                    b[1]<=ib[3] && ib[1]<=b[3] )
                    return true;
     return false;
// sample test
var doc = app.activeDocument;
alert( doc.pages[2].hasPageItems() );
@+
Marc
http://www.indiscripts.com