--- loncom/interface/lonindexer.pm	2001/12/13 13:59:22	1.30
+++ loncom/interface/lonindexer.pm	2002/03/06 22:01:06	1.36
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Directory Indexer
 #
-# $Id: lonindexer.pm,v 1.30 2001/12/13 13:59:22 harris41 Exp $
+# $Id: lonindexer.pm,v 1.36 2002/03/06 22:01:06 matthew Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -41,6 +41,8 @@
 # 8/28,10/15,11/28,11/29 Scott Harrison
 # 11/30 Matthew Hall
 # 12/11,12/13 Scott Harrison
+# YEAR=2002
+# 1/17 Scott Harrison
 #
 ###
 
@@ -78,10 +80,6 @@ my $extrafield; # default extra table ce
 my $fnum; # file counter
 my $dnum; # directory counter
 
-# ---------------------------------------------------------------------- BEGIN
-sub BEGIN {
-}
-
 # ----------------------------- Handling routine called via Apache and mod_perl
 sub handler {
     my $r = shift;
@@ -108,8 +106,10 @@ sub handler {
     my $uri=$r->uri;
 
 # -------------------------------------- see if called from an interactive mode
-    &get_unprocessed_cgi();
-
+    # Get the parameters from the query string
+    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
+	     ['catalogmode','launch','acts','mode','form','element']);
+    #-------------------------------------------------------------------
     my $closebutton='';
     my $groupimportbutton='';
     my $colspan=''; 
@@ -156,12 +156,36 @@ END
 onClick="javascript:select_group()">
 END
         }
-
+	# Additions made by Matthew to make the browser a little easier to deal
+	# with in the future.
+	#
+	# $mode (at this time) indicates if we are in edit mode.
+	# $form is the name of the form that the URL is placed when the
+	#       selection is made.
+	# $element is the name of the element in $formname which receives
+	#       the URL.
+	&Apache::lonxml::debug('Checking mode, form, element');
+	&setvalues(\%hash,'form_mode'   ,\%ENV,'form.mode'   );
+	&setvalues(\%hash,'form_form'   ,\%ENV,'form.form'   );
+	&setvalues(\%hash,'form_element',\%ENV,'form.element');
+
+	my $mode = $ENV{'form.mode'};
+	my ($form,$element);
+	if ($mode eq 'edit') {
+	    $form    = $ENV{'form.form'};
+	    $element = $ENV{'form.element'};
+	}
+	&Apache::lonxml::debug("mode=$mode form=$form element=$element");
 # ------ set catalogmodefunctions to have extra needed javascript functionality
 	my $catalogmodefunctions='';
 	if ($ENV{'form.catalogmode'} eq 'interactive' or
 	    $ENV{'form.catalogmode'} eq 'groupimport') {
-	    $catalogmodefunctions=<<END;
+	    # The if statement below sets us up to use the old version
+	    # by default (ie. if $mode is undefined).  This is the easy
+	    # way out.  Hopefully in the future I'll find a way to get 
+	    # the calls dealt with in a more comprehensive manner.
+	    if (!defined($mode) || $mode ne 'edit') {
+		$catalogmodefunctions=<<"END";
 function select_data(title,url) {
     changeTitle(title);
     changeURL(url);
@@ -171,16 +195,42 @@ function select_group() {
     window.location="/adm/groupsort?catalogmode=groupimport&acts="+document.forms.fileattr.acts.value;
 }
 function changeTitle(val) {
-    if (opener.inf.document.forms.resinfo.elements.t) {
-        opener.inf.document.forms.resinfo.elements.t.value=val;
+    if (opener.inf) {
+        if (opener.inf.document.forms.resinfo.elements.t) {
+            opener.inf.document.forms.resinfo.elements.t.value=val;
+        }
     }
 }
 function changeURL(val) {
-    if (opener.inf.document.forms.resinfo.elements.u) {
-	opener.inf.document.forms.resinfo.elements.u.value=val;
+    if (opener.inf) {
+        if (opener.inf.document.forms.resinfo.elements.u) {
+	    opener.inf.document.forms.resinfo.elements.u.value=val;
+        }
+    }
+}
+END
+            } else { # we are in 'edit' mode
+		$catalogmodefunctions=<<END;
+// mode = $mode
+function select_data(title,url) {
+    changeURL(url);
+    self.close();
+}
+
+function select_group() {
+    window.location="/adm/groupsort?catalogmode=interactive&form=$form&element=$element&mode=edit&acts="+document.forms.fileattr.acts.value;
+}
+
+function changeURL(val) {
+    if (window.opener.document) {
+	window.opener.document.forms["$form"].elements["$element"].value=val;
+    } else {
+	    alert("The file you selected is: "+val);
     }
 }
+
 END
+             }
         }
 	if ($ENV{'form.catalogmode'} eq 'groupimport') {
 	    $catalogmodefunctions.=<<END;
@@ -487,7 +537,7 @@ sub match_ext {
  	if ($fnptr == 0 and $unpackline[3] ne "") {
 	    my $embstyle = &Apache::loncommon::fileembstyle($fext);
             push @trimlist,$line if (defined($embstyle) && 
-				     $embstyle ne 'hdn' );
+				     ($embstyle ne 'hdn' or $fext eq 'meta'));
 	} else {
 	    push @trimlist,$line;
 	}
@@ -604,8 +654,10 @@ sub display_line {
 	    $title = &Apache::lonnet::metadata($filelink,'title')
 		if ($metafile == 1);
 	    $title=$listname unless $title;
-	    $r->print("<a href='javascript:select_data(\"",
-	              $title,'","',$filelink,"\")'>");
+	    my $titleesc=$title;
+	    $titleesc=~s/\'/\\'/; #' (clean up this spare quote
+            $r->print("<a href=\"javascript:select_data(\'",
+                      $titleesc,"','",$filelink,"')\">");
 	    $r->print("<img src='",$iconpath,"select.gif' border='0' /></a>".
 		      "\n");
 	    $r->print("</td><td valign='bottom' nowrap bgcolor=$fileclr>");
@@ -747,21 +799,12 @@ sub begin_form {
     $dnum++;
 }
 
-# ----------- grab unprocessed CGI variables that may have been appended to URL
-sub get_unprocessed_cgi {
-    foreach (split(/&/,$ENV{'QUERY_STRING'})) {
-       my ($name, $value) = split(/=/,$_);
-       $value =~ tr/+/ /;
-       $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
-       if ($name eq 'catalogmode' or $name eq 'launch' or $name eq 'acts') {
-           $ENV{'form.'.$name}=$value;
-       }
-    }
-}
-
 # --------- settings whenever the user causes the indexer window to be launched
 sub start_fresh_session {
     delete $hash{'mode_catalog'};
+    delete $hash{'form_mode'};
+    delete $hash{'form_form'};
+    delete $hash{'form_element'};
     foreach (keys %hash) {
 	if ($_ =~ /^pre_/) {
 	    delete $hash{$_};
@@ -772,6 +815,19 @@ sub start_fresh_session {
     }
 }
 
+# ------------------------------------------------------------------- setvalues
+sub setvalues {
+    # setvalues is used in registerurl to synchronize the database
+    # hash and environment hashes
+    my ($H1,$h1key,$H2,$h2key) =@_;
+    #
+    if (exists $H2->{$h2key}) {
+	$H1->{$h1key} = $H2->{$h2key};
+    } elsif (exists $H1->{$h1key}) {
+	$H2->{$h2key} = $H1->{$h1key};
+    } 
+}
+
 1;
 
 =head1 NAME
@@ -908,11 +964,6 @@ begin_form - prints the beginning of a f
 
 =item *
 
-get_unprocessed_cgi - grab unprocessed CGI variables that may have been
-appended to URL
-
-=item *
-
 start_fresh_session - settings whenever the user causes the indexer window
 to be launched