--- loncom/interface/lonhtmlcommon.pm	2003/12/29 21:17:00	1.37
+++ loncom/interface/lonhtmlcommon.pm	2004/02/16 22:28:55	1.49
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common html routines
 #
-# $Id: lonhtmlcommon.pm,v 1.37 2003/12/29 21:17:00 www Exp $
+# $Id: lonhtmlcommon.pm,v 1.49 2004/02/16 22:28:55 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -56,6 +56,7 @@ html.
 package Apache::lonhtmlcommon;
 
 use Time::Local;
+use Time::HiRes;
 use Apache::lonlocal;
 use strict;
 
@@ -65,6 +66,78 @@ 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
@@ -91,13 +164,12 @@ 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 +213,21 @@ 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";
     $result .= <<ENDJS;
 <script language="Javascript">
@@ -200,9 +279,10 @@ ENDJS
                     July    August    September October November December/;
     # Pad @Months with a bogus value to make indexing easier
     unshift(@Months,'If you can read this an error occurred');
+    if ($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";
     }
     $result .= "  </select>\n";
@@ -214,6 +294,7 @@ ENDJS
             "onChange=\"javascript:$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);
@@ -445,203 +526,6 @@ sub StatusOptions {
     $Str .= '</select>'."\n";
 }
 
-
-########################################################
-########################################################
-
-=pod
-
-=item &MultipleSectionSelect()
-
-Inputs: 
-
-=over 4
-
-=item $sections A references to an array containing the names of all the
-sections used in a class.
-
-=item $selectedSections A reference to an array containing the names of the
-currently selected sections.
-
-=back 
-
-Returns: a string containing HTML for a multiple select box for
-selecting sections of a course.  
-
-The form element name is 'Section'.  @$sections is sorted prior to output.
-
-=cut
-
-########################################################
-########################################################
-sub MultipleSectionSelect {
-    my ($sections,$selectedSections)=@_;
-
-    my $Str = '';
-    $Str .= '<select name="Section" multiple="true" size="4">'."\n";
-
-    foreach (sort @$sections) {
-        $Str .= '<option';
-        foreach my $selected (@$selectedSections) {
-            if($_ eq $selected) {
-                $Str .= ' selected=""';
-            }
-        }
-        $Str .= '>'.$_.'</option>'."\n";
-    }
-    $Str .= '</select>'."\n";
-    
-    return $Str;
-}
-
-########################################################
-########################################################
-
-=pod
-
-=item &Title()
-
-Inputs: $pageName a string containing the name of the page to be sent
-to &Apache::loncommon::bodytag.
-
-Returns: string containing being <html> and complete <head> and <title>
-as well as a <script> to focus the current window and change its width
-and height to 500.  Why?  I do not know.  If you find out, please update
-this documentation.
-
-=cut
-
-########################################################
-########################################################
-sub Title {
-    my ($pageName)=@_;
-
-    my $Str = '';
-
-    $Str .= '<html><head><title>'.$pageName.'</title></head>'."\n";
-    $Str .= &Apache::loncommon::bodytag($pageName)."\n";
-    $Str .= '<script>window.focus(); window.width=500;window.height=500;';
-    $Str .= '</script>'."\n";
-
-    return $Str;
-}
-
-########################################################
-########################################################
-
-=pod
-
-=item &CreateHeadings()
-
-This function generates the column headings for the chart.
-
-=over 4
-
-Inputs: $CacheData, $keyID, $headings, $spacePadding
-
-$CacheData: pointer to a hash tied to the cached data database
-
-$keyID: a pointer to an array containing the names of the data 
-held in a column and is used as part of a key into $CacheData
-
-$headings: The names of the headings for the student information
-
-$spacePadding: The spaces to go between columns
-
-Output: $Str
-
-$Str: A formatted string of the table column headings.
-
-=back
-
-=cut
-
-########################################################
-########################################################
-sub CreateHeadings {
-    my ($data,$keyID,$headings,$displayString,$format)=@_;
-    my $Str='';
-    my $formatting = '';
-
-    for(my $index=0; $index<(scalar @$headings); $index++) {
- 	my $currentHeading=$headings->[$index];
-        if($format eq 'preformatted') {
-            my @dataLength=split(//,$currentHeading);
-            my $length=scalar @dataLength;
-            $formatting = (' 'x
-                      ($data->{$keyID->[$index].':columnWidth'}-$length));
-        }
-        my $linkdata=$keyID->[$index];
-
-        my $tempString = $displayString;
-        $tempString =~ s/LINKDATA/$linkdata/;
-        $tempString =~ s/DISPLAYDATA/$currentHeading/;
-        $tempString =~ s/FORMATTING/$formatting/;
-
-        $Str .= $tempString;
-    }
-
-    return $Str;
-}
-
-########################################################
-########################################################
-
-=pod
-
-=item &FormatStudentInformation()
-
-This function produces a formatted string of the student\'s information:
-username, domain, section, full name, and PID.
-
-=over 4
-
-Input: $cache, $name, $keyID, $spacePadding
-
-$cache: This is a pointer to a hash that is tied to the cached data
-
-$name:  The name and domain of the current student in name:domain format
-
-$keyID: A pointer to an array holding the names used to
-
-remove data from the hash.  They represent the name of the data to be removed.
-
-$spacePadding: Extra spaces that represent the space between columns
-
-Output: $Str
-
-$Str: Formatted string.
-
-=back
-
-=cut
-
-########################################################
-########################################################
-sub FormatStudentInformation {
-    my ($data,$name,$keyID,$displayString,$format)=@_;
-    my $Str='';
-    my $currentColumn;
-
-    for(my $index=0; $index<(scalar @$keyID); $index++) {
-        $currentColumn=$data->{$name.':'.$keyID->[$index]};
-
-        if($format eq 'preformatted') {
-            my @dataLength=split(//,$currentColumn);
-            my $length=scalar @dataLength;
-            $currentColumn.= (' 'x
-                     ($data->{$keyID->[$index].':columnWidth'}-$length));
-        }
-
-        my $tempString = $displayString;
-        $tempString =~ s/DISPLAYDATA/$currentColumn/;
-
-        $Str .= $tempString;
-    }
-
-    return $Str;
-}
-
 ########################################################
 ########################################################
 
@@ -743,36 +627,64 @@ Returns: none
 
 # Create progress
 sub Create_PrgWin {
-    my ($r, $title, $heading, $number_to_do)=@_;
-    $r->print('<script>'.
-    "popwin=open(\'\',\'popwin\',\'width=400,height=100\');".
-    "popwin.document.writeln(\'<html><head><title>$title</title></head>".
+    my ($r, $title, $heading, $number_to_do,$type,$formname,$inputname)=@_;
+    if (!defined($type)) { $type='popup'; }
+    my %prog_state;
+    $prog_state{'type'}=$type;
+    if ($type eq 'popup') {
+	$prog_state{'window'}='popwin';
+	#the whole function called through timeout is due to issues
+	#in mozilla Read BUG #2665 if you want to know the whole story
+	&r_print($r,'<script>'.
+        "var popwin;
+         function openpopwin () {
+         popwin=open(\'\',\'popwin\',\'width=400,height=100\');".
+        "popwin.document.writeln(\'<html><head><title>$title</title></head>".
 	      "<body bgcolor=\"#88DDFF\">".
               "<h4>$heading</h4>".
               "<form name=popremain>".
               '<input type="text" size="55" name="remaining" value="'.
 	      &mt('Starting').'"></form>'.
               "</body></html>\');".
-    "popwin.document.close();".
-    "</script>");
+        "popwin.document.close();}".
+        "\nwindow.setTimeout(openpopwin,0)</script>");
+	$prog_state{'formname'}='popremain';
+	$prog_state{'inputname'}="remaining";
+    } elsif ($type eq 'inline') {
+	$prog_state{'window'}='window';
+	if (!$formname) {
+	    &r_print($r,'<form name="progresswindow">');
+	    $prog_state{'formname'}='progresswindow';
+	} else {
+	    $prog_state{'formname'}=$formname;
+	}
+	if (!$inputname) {
+	    &r_print($r,'<input type="text" name="progressline" />');
+	    $prog_state{'inputname'}="progressline";
+	} else {
+	    $prog_state{'inputname'}=$inputname;
+	    
+	}
+	if (!$formname) { &r_print($r,'</form>'); }
+	&Update_PrgWin($r,\%prog_state,&mt('Starting'));
+    }
 
-    my %prog_state;
     $prog_state{'done'}=0;
     $prog_state{'firststart'}=&Time::HiRes::time();
     $prog_state{'laststart'}=&Time::HiRes::time();
     $prog_state{'max'}=$number_to_do;
-
-    $r->rflush();
+    
     return %prog_state;
 }
 
 # update progress
 sub Update_PrgWin {
     my ($r,$prog_state,$displayString)=@_;
-    $r->print('<script>popwin.document.popremain.remaining.value="'.
-              $displayString.'";</script>');
+    &r_print($r,'<script>'.$$prog_state{'window'}.'.document.'.
+	     $$prog_state{'formname'}.'.'.
+	     $$prog_state{'inputname'}.'.value="'.
+	     $displayString.'";</script>');
     $$prog_state{'laststart'}=&Time::HiRes::time();
-    $r->rflush();
 }
 
 # increment progress state
@@ -820,33 +732,51 @@ sub Increment_PrgWin {
     if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
         $lasttime = '';
     }
-    $r->print('<script>popwin.document.popremain.remaining.value="'.
-	      $$prog_state{'done'}.'/'.$$prog_state{'max'}.
-	      ': '.$time_est.' '.&mt('remaining').' '.$lasttime.'";'.'</script>');
+    &r_print($r,'<script>'.$$prog_state{'window'}.'.document.'.
+	     $$prog_state{'formname'}.'.'.
+	     $$prog_state{'inputname'}.'.value="'.
+	     $$prog_state{'done'}.'/'.$$prog_state{'max'}.
+	     ': '.$time_est.' '.&mt('remaining').' '.$lasttime.'";'.'</script>');
     $$prog_state{'laststart'}=&Time::HiRes::time();
-    $r->rflush();
 }
 
 # close Progress Line
 sub Close_PrgWin {
     my ($r,$prog_state)=@_;
-    $r->print('<script>popwin.close()</script>'."\n");
+    if ($$prog_state{'type'} eq 'popup') {
+	&r_print($r,'<script>popwin.close()</script>'."\n");
+    } elsif ($$prog_state{'type'} eq 'inline') {
+	&Update_PrgWin($r,$prog_state,&mt('Done'));
+    }
     undef(%$prog_state);
-    $r->rflush(); 
 }
 
+sub r_print {
+    my ($r,$to_print)=@_;
+    if ($r) {
+	$r->print($to_print);
+	$r->rflush();
+    } else {
+	print($to_print);
+    }
+}
 
 # ------------------------------------------------------- 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;