--- rat/lonwrapper.pm	2006/04/04 15:11:48	1.22
+++ rat/lonwrapper.pm	2011/01/03 14:19:41	1.40
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Wrapper for external and binary files as standalone resources
 #
-# $Id: lonwrapper.pm,v 1.22 2006/04/04 15:11:48 albertel Exp $
+# $Id: lonwrapper.pm,v 1.40 2011/01/03 14:19:41 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -26,74 +26,43 @@
 # http://www.lon-capa.org/
 #
 
+
 package Apache::lonwrapper;
 
 use strict;
 use Apache::Constants qw(:common);
+use Apache::lonenc();
 use Apache::lonnet;
-use Apache::lonxml();
-use Apache::lonmenu;
 
 # ================================================================ Main Handler
-
-sub simple_menu {
-#
-# Producing the menu buttons
-#
-    return &Apache::loncommon::start_page('Menu',undef,
-					  {'only_body' => 1,
-					   'bgcolor'   => '#FFFFFF',}).
-	&Apache::lonmenu::menubuttons(1,'web',1).
-	&Apache::loncommon::end_page();
-}
-
-
 sub wrapper {
-    my ($topurl,$bottomurl) = @_;
-
-    if ($env{'browser.interface'} eq 'textual') {
-#
-# ssi-based rendering for text-based interface
-#
-	return 
-	    &Apache::loncommon::start_page('Menu',undef,
-					  {'bgcolor'        => '#FFFFFF',
-					   'force_register' => 1,
-				       }).
-	    &Apache::lonnet::ssi_body($bottomurl).
-	    &Apache::loncommon::end_page();
-    }
+    my $url = shift;
 
-    my $events='onLoad="'.&Apache::lonmenu::loadevents.
-	'" onUnload="'.&Apache::lonmenu::unloadevents.'"';
-    
-    my $result = &Apache::lonxml::xmlbegin().
-	&Apache::loncommon::head(undef,undef,
-				 {'force_register' => 1});
-  
-    if ($env{'environment.remote'} eq 'off') {
-#
-# This is inline remote
-# 
-	$result .= <<ENDDOCUMENTINL;
-<frameset rows="180,*" border="0" $events>
-<frame src="$topurl">
-<frame src="$bottomurl">
-</frameset>
-ENDDOCUMENTINL
-    } else {
-#
-# frame-based rendering for graphical interface
-#
-	$result .=<<ENDDOCUMENT;
-<frameset rows="1,*" border="0" $events>
-<frame src="/adm/rat/empty.html">
-<frame src="$bottomurl">
-</frameset>
-ENDDOCUMENT
-    }
-
-    $result .= "\n</html>\n";
+    my $startpage =  Apache::loncommon::start_page('Menu',undef,
+					  { 'force_register' =>1, 'bgcolor'   => '#FFFFFF',}) ;
+    my $endpage =  Apache::loncommon::end_page();
+
+    my $script = Apache::lonhtmlcommon::scripttag(<<SCRIPT );
+    \$(document).ready( function() {
+        \$(window).unbind('resize').resize(function(){
+            var header = \$('.LC_head_subbox')[0] ?  \$('.LC_head_subbox') 
+                                                  :  \$('#LC_breadcrumbs');
+            var pos = header.height() + header.position().top + 5;
+            \$('.LC_iframecontainer').css('top', pos);
+        });
+    });
+    window.onload = function(){  \$(window).trigger('resize') }; 
+SCRIPT
+
+    # javascript will position the iframe if window was resized (or zoomed)
+    return <<ENDFRAME;
+    $startpage
+    $script
+    <div class="LC_iframecontainer">
+        <iframe src="$url">No iframe support!</iframe>
+    </div>
+    $endpage
+ENDFRAME
 }
 
 sub handler {
@@ -103,21 +72,16 @@ sub handler {
 
     return OK if $r->header_only;
 
-    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
-					    ['wrapperdisplay']);
-    if ($env{'form.wrapperdisplay'} eq 'menu') {
-	$r->print(&simple_menu());
-	return OK;
+    my $url = $r->uri;
+    my $is_ext;
+
+    for ($url){
+        s|^/adm/wrapper||;
+        $is_ext = $_ =~ s|^/ext/|http://|;         
+        s|http://https://|https://|;
+        s|&colon;|:|g;              
     }
 
-    my $orgurl=$r->uri;
-    my $url=$orgurl;
-    $orgurl.=(($orgurl=~/\?/)?'&':'?').$ENV{'QUERY_STRING'};
-    $orgurl.=(($orgurl=~/\?/)?'&':'?').'wrapperdisplay=menu';
-    $url=~s/^\/adm\/wrapper//;
-    my $is_ext = $url =~ m|^/ext/|;
-    $url=~s/^\/ext\//http\:\/\//;
-    $url=~s|&colon;|:|g;
 #
 # Actual URL
 #
@@ -125,25 +89,62 @@ sub handler {
 #
 # This is uploaded homework
 #
-	$env{'request.state'}='uploaded';
-	&Apache::lonhomework::renderpage($r,$url);
+        $env{'request.state'}='uploaded';
+        &Apache::lonhomework::renderpage($r,$url);
     } else {
 #
 # This is not homework
 #
-	if ($is_ext) {
-	    $ENV{'QUERY_STRING'}=~s/(^|\&)symb=[^\&]*/$1/;
-	}
-	$url.=(($url=~/\?/)?'&':'?').$ENV{'QUERY_STRING'}; 
-	# reappend the query arguments
-	$r->print(&wrapper($orgurl,$url));
+        if ($is_ext) {
+            $ENV{'QUERY_STRING'} =~ s/(^|\&)symb=[^\&]*/$1/;
+            $ENV{'QUERY_STRING'} =~ s/\&$//;  
+        }
+
+        unless ($ENV{'QUERY_STRING'} eq '') {
+            $url.=(($url=~/\?/)?'&':'?').$ENV{'QUERY_STRING'};
+        }
+
+        # encrypt url if not external
+        &Apache::lonenc::check_encrypt(\$url) if $url !~ /^https?\:/ ;
+
+        $r->print( wrapper($url) );
+
     } # not just the menu
+    
     return OK;
 } # handler
 
 1;
 __END__
 
+=pod
+
+=head1 NAME
+
+Apache::lonwrapper - External and binary file management.
+
+=head1 SYNOPSIS
+
+Wrapper for external and binary files as standalone resources. Edit handler for rat maps; TeX content handler.
+
+This is part of the LearningOnline Network with CAPA project
+described at http://www.lon-capa.org.
+
+=head1 Subroutines
+
+=over
+
+=item wrapper($url)
+
+Wraps $url in an iframe and generates a page for it.
+Returns markup for the entire page.
+
+=item handler()
+
+=back
+
+=cut
+