--- loncom/interface/lonhtmlcommon.pm	2003/12/29 19:01:27	1.36
+++ loncom/interface/lonhtmlcommon.pm	2004/01/29 00:51:06	1.43
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common html routines
 #
-# $Id: lonhtmlcommon.pm,v 1.36 2003/12/29 19:01:27 www Exp $
+# $Id: lonhtmlcommon.pm,v 1.43 2004/01/29 00:51:06 www Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -65,6 +65,78 @@ use strict;
 
 =pod
 
+=item authorbombs
+
+=cut
+
+##############################################
+##############################################
+
+sub authorbombs {
+    my $url=shift;
+    $url=&Apache::lonnet::declutter($url);
+    my ($udom,$uname)=($url=~/^(\w+)\/(\w+)\//);
+    my %bombs=&Apache::lonmsg::all_url_author_res_msg($uname,$udom);
+    foreach (keys %bombs) {
+	if ($_=~/^$udom\/$uname\//) {
+	    return '<a href="/adm/bombs/'.$url.
+		'"><img src="/adm/lonMisc/bomb.gif" border="0" /></a>'.
+		&Apache::loncommon::help_open_topic('About_Bombs');
+	}
+    }
+    return '';
+}
+
+##############################################
+##############################################
+
+sub recent_filename {
+    my $area=shift;
+    return 'nohist_recent_'.&Apache::lonnet::escape($area);
+}
+
+sub store_recent {
+    my ($area,$name,$value)=@_;
+    my $file=&recent_filename($area);
+    my %recent=&Apache::lonnet::dump($file);
+    if (scalar(keys(%recent))>10) {
+# remove oldest value
+	my $oldest=time;
+	my $delkey='';
+	foreach (keys %recent) {
+	    my $thistime=(split(/\&/,$recent{$_}))[0];
+	    if ($thistime<$oldest) {
+		$oldest=$thistime;
+		$delkey=$_;
+	    }
+	}
+	&Apache::lonnet::del($file,[$delkey]);
+    }
+# store new value
+    &Apache::lonnet::put($file,{ $name => 
+				 time.'&'.&Apache::lonnet::escape($value) });
+}
+
+sub select_recent {
+    my ($area,$fieldname,$event)=@_;
+    my %recent=&Apache::lonnet::dump(&recent_filename($area));
+    my $return="\n<select name='$fieldname'".
+	($event?" onChange='$event'":'').
+	">\n<option value=''>--- ".&mt('Recent')." ---</option>";
+    foreach (sort keys %recent) {
+	unless ($_=~/^error\:/) {
+	    $return.="\n<option value='$_'>".
+		&Apache::lonnet::unescape((split(/\&/,$recent{$_}))[1]).
+		'</option>';
+	}
+    }
+    $return.="\n</select>\n";
+    return $return;
+}
+
+
+=pod
+
 =item textbox
 
 =cut
@@ -91,8 +163,9 @@ sub textbox {
 ##############################################
 ##############################################
 sub checkbox {
-    my ($name) = @_;
-    my $Str = '<input type="checkbox" name="'.$name.'" />';
+    my ($name,$value) = @_;
+    my $Str = '<input type="checkbox" name="'.$name.'"'.
+	($value?' checked="1"':'').' />';
     return $Str;
 }
 
@@ -141,14 +214,21 @@ The method used to restrict user input w
 ##############################################
 ##############################################
 sub date_setter {
-    my ($formname,$dname,$currentvalue,$special) = @_;
+    my ($formname,$dname,$currentvalue,$special,$includeempty) = @_;
     if (! defined($currentvalue) || $currentvalue eq 'now') {
-        $currentvalue = time;
+	unless ($includeempty) {
+	    $currentvalue = time;
+	} else {
+	    $currentvalue = 0;
+	}
     }
     # other potentially useful values:     wkday,yrday,is_daylight_savings
-    my ($sec,$min,$hour,$mday,$month,$year,undef,undef,undef) = 
-        localtime($currentvalue);
-    $year += 1900;
+    my ($sec,$min,$hour,$mday,$month,$year)=('','','','','','');
+    if ($currentvalue) {
+	($sec,$min,$hour,$mday,$month,$year,undef,undef,undef) = 
+	    localtime($currentvalue);
+	$year += 1900;
+    }
     my $result = "\n<!-- $dname date setting form -->\n";
     $result .= <<ENDJS;
 <script language="Javascript">
@@ -200,9 +280,10 @@ ENDJS
                     July    August    September October November December/;
     # Pad @Months with a bogus value to make indexing easier
     unshift(@Months,'If you can read this an error occurred');
+    if ($includeempty) { $result.="<option value=''></option>"; }
     for(my $m = 1;$m <=$#Months;$m++) {
         $result .= "      <option value=\"$m\" ";
-        $result .= "selected " if ($m-1 == $month);
+        $result .= "selected " if ($m-1 eq $month);
         $result .= "> ".&mt($Months[$m])." </option>\n";
     }
     $result .= "  </select>\n";
@@ -214,6 +295,7 @@ ENDJS
             "onChange=\"javascript:$dname\_checkday()\" />\n";
     $result .= "&nbsp;&nbsp;";
     $result .= "  <select name=\"$dname\_hour\" ".$special." >\n";
+    if ($includeempty) { $result.="<option value=''></option>"; }
     for (my $h = 0;$h<24;$h++) {
         $result .= "      <option value=\"$h\" ";
         $result .= "selected " if ($hour == $h);
@@ -437,11 +519,11 @@ sub StatusOptions {
     $Str .= ' size="'.$size.'" ';
     $Str .= '>'."\n";
     $Str .= '<option value="Active" '.$OpSel1.'>'.
-        'Currently Enrolled</option>'."\n";
+        &mt('Currently Enrolled').'</option>'."\n";
     $Str .= '<option value="Expired" '.$OpSel2.'>'.
-        'Previously Enrolled</option>'."\n";
+        &mt('Previously Enrolled').'</option>'."\n";
     $Str .= '<option value="Any" '.$OpSel3.'>'.
-        'Any Enrollment Status</option>'."\n";
+        &mt('Any Enrollment Status').'</option>'."\n";
     $Str .= '</select>'."\n";
 }
 
@@ -839,14 +921,19 @@ sub Close_PrgWin {
 # ------------------------------------------------------- Puts directory header
 
 sub crumbs {
-    my ($uri,$target,$prefix)=@_;
+    my ($uri,$target,$prefix,$form)=@_;
     my $output='<br /><tt><b><font size="+2">'.$prefix.'/';
     if ($ENV{'user.adv'}) {
-	my $path=$prefix;
+	my $path=$prefix.'/';
 	foreach (split('/',$uri)) {
 	    unless ($_) { next; }
-	    $path.='/'.$_;
-	    $output.='<a href="'.$path.'"'.($target?' target="'.$target.'"':'').'>'.$_.'</a>/';
+	    $path.=$_;
+	    unless ($path eq $uri) { $path.='/'; }
+	    my $linkpath=$path;
+	    if ($form) {
+		$linkpath="javascript:$form.action='$path';$form.submit();";
+	    }
+	    $output.='<a href="'.$linkpath.'"'.($target?' target="'.$target.'"':'').'>'.$_.'</a>/';
 	}
     } else {
 	$output.=$uri;