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Diff for /loncom/interface/lonhtmlcommon.pm between versions 1.8 and 1.46

version 1.8, 2002/08/21 17:18:08 version 1.46, 2004/02/12 22:23:30
Line 25 Line 25
 #  #
 # http://www.lon-capa.org/  # http://www.lon-capa.org/
 #  #
   ######################################################################
   ######################################################################
   
   =pod
   
   =head1 NAME
   
   Apache::lonhtmlcommon - routines to do common html things
   
   =head1 SYNOPSIS
   
   Referenced by other mod_perl Apache modules.
   
   =head1 INTRODUCTION
   
   lonhtmlcommon is a collection of subroutines used to present information
   in a consistent html format, or provide other functionality related to
   html.
   
   =head2 General Subroutines
   
   =over 4
   
   =cut 
   
   ######################################################################
   ######################################################################
   
 package Apache::lonhtmlcommon;  package Apache::lonhtmlcommon;
   
   use Time::Local;
   use Apache::lonlocal;
 use strict;  use strict;
   
 sub AscendOrderOptions {  
     my ($order, $page, $formName)=@_;  
   
     my $OpSel1 = '';  ##############################################
     my $OpSel2 = '';  ##############################################
   
     if($order eq 'Ascending') {  =pod
         $OpSel1 = ' selected';  
     } else {  
         $OpSel2 = ' selected';  
     }  
   
     my $Str = '';  =item authorbombs
     $Str .= '<select name="'.(($page)?$page:'').'Ascend"';  
     if($formName) {  =cut
         $Str .= ' onchange="document.'.$formName.'.submit()"';  
   ##############################################
   ##############################################
   
   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>';
    }
     }      }
     $Str .= '>'."\n";      $return.="\n</select>\n";
     $Str .= '<option'.$OpSel1.'>Ascending</option>'."\n".      return $return;
     '<option'.$OpSel2.'>Descending</option>'."\n";  }
     $Str .= '</select>'."\n";  
   
   
   =pod
   
   =item textbox
   
   =cut
   
   ##############################################
   ##############################################
   sub textbox {
       my ($name,$value,$size,$special) = @_;
       $size = 40 if (! defined($size));
       my $Str = '<input type="text" name="'.$name.'" size="'.$size.'" '.
           'value="'.$value.'" '.$special.' />';
     return $Str;      return $Str;
 }  }
   
 sub MapOptions {  ##############################################
     my ($data, $page, $formName)=@_;  ##############################################
     my $Str = '';  
     $Str .= '<select name="';  
     $Str .= (($page)?$page:'').'Maps"';  
     if($formName) {  
         $Str .= ' onchange="document.'.$formName.'.submit()"';  
     }  
     $Str .= '>'."\n";  
   
     my $selected = 0;  =pod
     foreach my $sequence (split(':',$data->{'orderedSequences'})) {  
  $Str .= '<option';  
         if($data->{$page.'Maps'} eq $data->{$sequence.':title'}) {  
             $Str .= ' selected';  
             $selected = 1;  
         }  
  $Str .= '>'.$data->{$sequence.':title'}.'</option>'."\n";       
     }  
     $Str .= '<option';  
     if(!$selected) {  
         $Str .= ' selected';  
     }  
     $Str .= '>All Maps</option>'."\n";  
   
     $Str .= '</select>'."\n";  =item checkbox
   
   =cut
   
   ##############################################
   ##############################################
   sub checkbox {
       my ($name,$value) = @_;
       my $Str = '<input type="checkbox" name="'.$name.'"'.
    ($value?' checked="1"':'').' />';
     return $Str;      return $Str;
 }  }
   
 sub StudentOptions {  ##############################################
     my ($cache, $students, $selectedName, $page, $formName)=@_;  ##############################################
   
     my $Str = '';  =pod
     $Str .= '<select name="'.(($page)?$page:'').'Student"';  
     if($formName) {  =item &date_setter
         $Str .= ' onchange="document.'.$formName.'.submit()"';  
     }  
     $Str .= '>'."\n";  
   
     my $selected=0;  &date_setter returns html and javascript for a compact date-setting form.
   To retrieve values from it, use &get_date_from_form().
   
     foreach (@$students) {  Inputs
  $Str .= '<option';  
  if($selectedName eq $_) {  =over 4
             $Str .= ' selected';  
             $selected = 1;  =item $dname 
   
   The name to prepend to the form elements.  
   The form elements defined will be dname_year, dname_month, dname_day,
   dname_hour, dname_min, and dname_sec.
   
   =item $currentvalue
   
   The current setting for this time parameter.  A unix format time
   (time in seconds since the beginning of Jan 1st, 1970, GMT.  
   An undefined value is taken to indicate the value is the current time.
   Also, to be explicit, a value of 'now' also indicates the current time.
   
   =item $special
   
   Additional html/javascript to be associated with each element in
   the date_setter.  See lonparmset for example usage.
   
   =back
   
   Bugs
   
   The method used to restrict user input will fail in the year 2400.
   
   =cut
   
   ##############################################
   ##############################################
   sub date_setter {
       my ($formname,$dname,$currentvalue,$special,$includeempty) = @_;
       if (! defined($currentvalue) || $currentvalue eq 'now') {
    unless ($includeempty) {
       $currentvalue = time;
    } else {
       $currentvalue = 0;
    }
       }
       # other potentially useful values:     wkday,yrday,is_daylight_savings
       my ($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">
       function $dname\_checkday() {
           var day   = document.$formname.$dname\_day.value;
           var month = document.$formname.$dname\_month.value;
           var year  = document.$formname.$dname\_year.value;
           var valid = true;
           if (day < 1) {
               document.$formname.$dname\_day.value = 1;
           } 
           if (day > 31) {
               document.$formname.$dname\_day.value = 31;
           }
           if ((month == 1)  || (month == 3)  || (month == 5)  ||
               (month == 7)  || (month == 8)  || (month == 10) ||
               (month == 12)) {
               if (day > 31) {
                   document.$formname.$dname\_day.value = 31;
                   day = 31;
               }
           } else if (month == 2 ) {
               if ((year % 4 == 0) && (year % 100 != 0)) {
                   if (day > 29) {
                       document.$formname.$dname\_day.value = 29;
                   }
               } else if (day > 29) {
                   document.$formname.$dname\_day.value = 28;
               }
           } else if (day > 30) {
               document.$formname.$dname\_day.value = 30;
         }          }
         $Str .= '>';  
         $Str .= $cache->{$_.':fullname'};  
         $Str .= '</option>'."\n";       
     }      }
   
     $Str .= '<option';      function $dname\_opencalendar() {
     if($selectedName eq 'No Student Selected') {         var calwin=window.open(
         $Str .= ' selected';  "/adm/announcements?pickdate=yes&formname=$formname&element=$dname&month="+
         $selected = 1;  document.$formname.$dname\_month.value+"&year="+
     }  document.$formname.$dname\_year.value,
     $Str .= '>No Student Selected</option>'."\n";               "LONCAPAcal",
                 "height=350,width=350,scrollbars=yes,resizable=yes,menubar=no");
   
       }
   </script>
   ENDJS
       $result .= "  <nobr><select name=\"$dname\_month\" ".$special.' '.
           "onChange=\"javascript:$dname\_checkday()\" >\n";
       my @Months = qw/January February  March     April   May      June 
                       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 eq $month);
           $result .= "> ".&mt($Months[$m])." </option>\n";
       }
       $result .= "  </select>\n";
       $result .= "  <input type=\"text\" name=\"$dname\_day\" ".
               "value=\"$mday\" size=\"3\" ".$special.' '.
               "onChange=\"javascript:$dname\_checkday()\" />\n";
       $result .= "  <input type=\"year\" name=\"$dname\_year\" ".
               "value=\"$year\" size=\"5\" ".$special.' '.
               "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);
           $result .= "> ";
    my $timest='';
           if ($h == 0) {
               $timest .= "12 am";
           } elsif($h == 12) {
               $timest .= "12 noon";
           } elsif($h < 12) {
               $timest .= "$h am";
           } else {
               $timest .= $h-12 ." pm";
           }
    $timest=&mt($timest);
           $result .= $timest." </option>\n";
       } 
       $result .= "  </select>\n";
       $result .= "  <input type=\"text\" name=\"$dname\_minute\" ".$special.' '.
           "value=\"$min\" size=\"3\" /> m\n";
       $result .= "  <input type=\"text\" name=\"$dname\_second\" ".$special.' '.
           "value=\"$sec\" size=\"3\" /> s\n";
       $result .= "<a href=\"javascript:$dname\_opencalendar()\">".
       &mt('Select Date')."</a></nobr>\n<!-- end $dname date setting form -->\n";
       return $result;
   }
   
   ##############################################
   ##############################################
   
   =pod
   
   =item &get_date_from_form
   
     $Str .= '<option';  get_date_from_form retrieves the date specified in an &date_setter form.
     if(!$selected) {  
         $Str .= ' selected';  Inputs:
   
   =over 4
   
   =item $dname
   
   The name passed to &datesetter, which prefixes the form elements.
   
   =item $defaulttime
   
   The unix time to use as the default in case of poor inputs.
   
   =back
   
   Returns: Unix time represented in the form.
   
   =cut
   
   ##############################################
   ##############################################
   sub get_date_from_form {
       my ($dname) = @_;
       my ($sec,$min,$hour,$day,$month,$year);
       #
       if (defined($ENV{'form.'.$dname.'_second'})) {
           my $tmpsec = $ENV{'form.'.$dname.'_second'};
           if (($tmpsec =~ /^\d+$/) && ($tmpsec >= 0) && ($tmpsec < 60)) {
               $sec = $tmpsec;
           }
       }
       if (defined($ENV{'form.'.$dname.'_minute'})) {
           my $tmpmin = $ENV{'form.'.$dname.'_minute'};
           if (($tmpmin =~ /^\d+$/) && ($tmpmin >= 0) && ($tmpmin < 60)) {
               $min = $tmpmin;
           }
       }
       if (defined($ENV{'form.'.$dname.'_hour'})) {
           my $tmphour = $ENV{'form.'.$dname.'_hour'};
           if (($tmphour =~ /^\d+$/) && ($tmphour >= 0) && ($tmphour < 24)) {
               $hour = $tmphour;
           }
       }
       if (defined($ENV{'form.'.$dname.'_day'})) {
           my $tmpday = $ENV{'form.'.$dname.'_day'};
           if (($tmpday =~ /^\d+$/) && ($tmpday > 0) && ($tmpday < 32)) {
               $day = $tmpday;
           }
       }
       if (defined($ENV{'form.'.$dname.'_month'})) {
           my $tmpmonth = $ENV{'form.'.$dname.'_month'};
           if (($tmpmonth =~ /^\d+$/) && ($tmpmonth > 0) && ($tmpmonth < 13)) {
               $month = $tmpmonth - 1;
           }
     }      }
     $Str .= '>All Students</option>'."\n";      if (defined($ENV{'form.'.$dname.'_year'})) {
           my $tmpyear = $ENV{'form.'.$dname.'_year'};
           if (($tmpyear =~ /^\d+$/) && ($tmpyear > 1900)) {
               $year = $tmpyear - 1900;
           }
       }
       if (($year<70) || ($year>137)) { return undef; }
       if (defined($sec) && defined($min)   && defined($hour) &&
           defined($day) && defined($month) && defined($year) &&
           eval(&timelocal($sec,$min,$hour,$day,$month,$year))) {
           return &timelocal($sec,$min,$hour,$day,$month,$year);
       } else {
           return undef;
       }
   }
   
     $Str .= '</select>'."\n";  ##############################################
   ##############################################
   
   =pod
   
   =item &pjump_javascript_definition()
   
   Returns javascript defining the 'pjump' function, which opens up a
   parameter setting wizard.
   
   =cut
   
   ##############################################
   ##############################################
   sub pjump_javascript_definition {
       my $Str = <<END;
       function pjump(type,dis,value,marker,ret,call) {
           parmwin=window.open("/adm/rat/parameter.html?type="+escape(type)
                    +"&value="+escape(value)+"&marker="+escape(marker)
                    +"&return="+escape(ret)
                    +"&call="+escape(call)+"&name="+escape(dis),"LONCAPAparms",
                    "height=350,width=350,scrollbars=no,menubar=no");
       }
   END
     return $Str;      return $Str;
 }  }
   
   ##############################################
   ##############################################
   
   =pod
   
   =item &javascript_nothing()
   
   Return an appropriate null for the users browser.  This is used
   as the first arguement for window.open calls when you want a blank
   window that you can then write to.
   
   =cut
   
   ##############################################
   ##############################################
   sub javascript_nothing {
       # mozilla and other browsers work with "''", but IE on mac does not.
       my $nothing = "''";
       my $user_browser;
       my $user_os;
       $user_browser = $ENV{'browser.type'} if (exists($ENV{'browser.type'}));
       $user_os      = $ENV{'browser.os'}   if (exists($ENV{'browser.os'}));
       if (! defined($user_browser) || ! defined($user_os)) {
           (undef,$user_browser,undef,undef,undef,$user_os) = 
                              &Apache::loncommon::decode_user_agent();
       }
       if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
           $nothing = "'javascript:void(0);'";
       }
       return $nothing;
   }
   
   
   ##############################################
   ##############################################
   
   =pod
   
   =item &StatusOptions()
   
   Returns html for a selection box which allows the user to choose the
   enrollment status of students.  The selection box name is 'Status'.
   
   Inputs:
   
   $status: the currently selected status.  If undefined the value of
   $ENV{'form.Status'} is taken.  If that is undefined, a value of 'Active'
   is used.
   
   $formname: The name of the form.  If defined the onchange attribute of
   the selection box is set to document.$formname.submit().
   
   $size: the size (number of lines) of the selection box.
   
   $onchange: javascript to use when the value is changed.  Enclosed in 
   double quotes, ""s, not single quotes.
   
   Returns: a perl string as described.
   
   =cut
   
   ##############################################
   ##############################################
 sub StatusOptions {  sub StatusOptions {
     my ($status, $formName)=@_;      my ($status, $formName,$size,$onchange)=@_;
       $size = 1 if (!defined($size));
       if (! defined($status)) {
           $status = 'Active';
           $status = $ENV{'form.Status'} if (exists($ENV{'form.Status'}));
       }
   
     my $OpSel1 = '';      my $OpSel1 = '';
     my $OpSel2 = '';      my $OpSel2 = '';
Line 139  sub StatusOptions { Line 508  sub StatusOptions {
   
     my $Str = '';      my $Str = '';
     $Str .= '<select name="Status"';      $Str .= '<select name="Status"';
     if(defined($formName) && $formName ne '') {      if(defined($formName) && $formName ne '' && ! defined($onchange)) {
         $Str .= ' onchange="document.'.$formName.'.submit()"';          $Str .= ' onchange="document.'.$formName.'.submit()"';
     }      }
       if (defined($onchange)) {
           $Str .= ' onchange="'.$onchange.'"';
       }
       $Str .= ' size="'.$size.'" ';
     $Str .= '>'."\n";      $Str .= '>'."\n";
     $Str .= '<option'.$OpSel1.'>Active</option>'."\n";      $Str .= '<option value="Active" '.$OpSel1.'>'.
     $Str .= '<option'.$OpSel2.'>Expired</option>'."\n";          &mt('Currently Enrolled').'</option>'."\n";
     $Str .= '<option'.$OpSel3.'>Any</option>'."\n";      $Str .= '<option value="Expired" '.$OpSel2.'>'.
           &mt('Previously Enrolled').'</option>'."\n";
       $Str .= '<option value="Any" '.$OpSel3.'>'.
           &mt('Any Enrollment Status').'</option>'."\n";
     $Str .= '</select>'."\n";      $Str .= '</select>'."\n";
 }  }
   
 sub MultipleSectionSelect {  ########################################################
     my ($sections,$selectedSections)=@_;  ########################################################
   
     my $Str = '';  =pod
     $Str .= '<select name="Section" multiple="true" size="4">'."\n";  
   
     foreach (@$sections) {  =item Progess Window Handling Routines
         $Str .= '<option';  
         foreach my $selected (@$selectedSections) {  
             if($_ eq $selected) {  
                 $Str .= ' selected=""';  
             }  
         }  
         $Str .= '>'.$_.'</option>'."\n";  
     }  
     $Str .= '</select>'."\n";  
   
     return $Str;  These routines handle the creation, update, increment, and closure of 
 }  progress windows.  The progress window reports to the user the number
   of items completed and an estimate of the time required to complete the rest.
   
 sub Title {  =over 4
     my ($pageName)=@_;  
   
     my $Str = '';  
   
     $Str .= '<html><head><title>'.$pageName.'</title></head>'."\n";  =item &Create_PrgWin
     $Str .= &Apache::loncommon::bodytag($pageName)."\n";  
     $Str .= '<script>window.focus(); window.width=500;window.height=500;';  
     $Str .= '</script>'."\n";  
   
     return $Str;  Writes javascript to the client to open a progress window and returns a
 }  data structure used for bookkeeping.
   
 =pod  Inputs
   
 =item &CreateTableHeadings()  =over 4
   
 This function generates the column headings for the chart.  =item $r Apache request
   
 =over 4  =item $title The title of the progress window
   
 Inputs: $CacheData, $keyID, $headings, $spacePadding  =item $heading A description (usually 1 line) of the process being initiated.
   
 $CacheData: pointer to a hash tied to the cached data database  =item $number_to_do The total number of items being processed.
   
 $keyID: a pointer to an array containing the names of the data   =back
 held in a column and is used as part of a key into $CacheData  
   
 $headings: The names of the headings for the student information  Returns a hash containing the progress state data structure.
   
 $spacePadding: The spaces to go between columns  
   
 Output: $Str  =item &Update_PrgWin
   
 $Str: A formatted string of the table column headings.  Updates the text in the progress indicator.  Does not increment the count.
   See &Increment_PrgWin.
   
 =back  Inputs:
   
 =cut  =over 4
   
 sub CreateHeadings {  =item $r Apache request
     my ($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;  =item $prog_state Pointer to the data structure returned by &Create_PrgWin
         $tempString =~ s/LINKDATA/$linkdata/;  
         $tempString =~ s/DISPLAYDATA/$currentHeading/;  
         $tempString =~ s/FORMATTING/$formatting/;  
   
         $Str .= $tempString;  =item $displaystring The string to write to the status indicator
     }  
   
     return $Str;  =back
 }  
   
 =pod  Returns: none
   
   
   =item Increment_PrgWin
   
 =item &FormatStudentInformation()  Increment the count of items completed for the progress window by 1.  
   
 This function produces a formatted string of the student's information:  Inputs:
 username, domain, section, full name, and PID.  
   
 =over 4  =over 4
   
 Input: $cache, $name, $keyID, $spacePadding  =item $r Apache request
   
 $cache: This is a pointer to a hash that is tied to the cached data  =item $prog_state Pointer to the data structure returned by Create_PrgWin
   
 $name:  The name and domain of the current student in name:domain format  =item $extraInfo A description of the items being iterated over.  Typically
   'student'.
   
 $keyID: A pointer to an array holding the names used to  =back
   
 remove data from the hash.  They represent the name of the data to be removed.  Returns: none
   
 $spacePadding: Extra spaces that represent the space between columns  
   
 Output: $Str  =item Close_PrgWin
   
 $Str: Formatted string.  Closes the progress window.
   
 =back  Inputs:
   
 =cut  =over 4 
   
 sub FormatStudentInformation {  =item $r Apache request
     my ($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;  =item $prog_state Pointer to the data structure returned by Create_PrgWin
         $tempString =~ s/DISPLAYDATA/$currentColumn/;  
   
         $Str .= $tempString;  =back
     }  
   
     return $Str;  Returns: none
 }  
   =back
   
   =cut
   
   ########################################################
   ########################################################
   
 # Create progress  # Create progress
 sub Create_PrgWin {  sub Create_PrgWin {
     my ($r, $title, $heading)=@_;      my ($r, $title, $heading, $number_to_do)=@_;
       #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('<script>'.      $r->print('<script>'.
     "popwin=open(\'\',\'popwin\',\'width=400,height=100\');".      "var popwin;
     "popwin.document.writeln(\'<html><body bgcolor=\"#88DDFF\">".       function openpopwin () {
               "<title>$title</title>".       popwin=open(\'\',\'popwin\',\'width=400,height=100\');".
       "popwin.document.writeln(\'<html><head><title>$title</title></head>".
         "<body bgcolor=\"#88DDFF\">".
               "<h4>$heading</h4>".                "<h4>$heading</h4>".
               "<form name=popremain>".                "<form name=popremain>".
               "<input type=text size=35 name=remaining value=Starting></form>".                '<input type="text" size="55" name="remaining" value="'.
         &mt('Starting').'"></form>'.
               "</body></html>\');".                "</body></html>\');".
     "popwin.document.close();".      "popwin.document.close();}".
     "</script>");      "\nwindow.setTimeout(openpopwin,0)</script>");
   
       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();      $r->rflush();
       return %prog_state;
 }  }
   
 # update progress  # update progress
 sub Update_PrgWin {  sub Update_PrgWin {
     my ($displayString,$r)=@_;      my ($r,$prog_state,$displayString)=@_;
     $r->print('<script>popwin.document.popremain.remaining.value="'.      $r->print('<script>popwin.document.popremain.remaining.value="'.
               $displayString.'";</script>');                $displayString.'";</script>');
       $$prog_state{'laststart'}=&Time::HiRes::time();
       $r->rflush();
   }
   
   # increment progress state
   sub Increment_PrgWin {
       my ($r,$prog_state,$extraInfo)=@_;
       $$prog_state{'done'}++;
       my $time_est= (&Time::HiRes::time() - $$prog_state{'firststart'})/
           $$prog_state{'done'} *
    ($$prog_state{'max'}-$$prog_state{'done'});
       $time_est = int($time_est);
       if (int ($time_est/60) > 0) {
    my $min = int($time_est/60);
    my $sec = $time_est % 60;
    $time_est = $min.' '.&mt('minutes');
           if ($min < 10)  {
               if ($sec > 1) {
                   $time_est.= ', '.$sec.' '.&mt('seconds');
               } elsif ($sec > 0) {
                   $time_est.= ', '.$sec.' '.&mt('second');
               }
           }
       } else {
    $time_est .= ' '.&mt('seconds');
       }
       my $lasttime = &Time::HiRes::time()-$$prog_state{'laststart'};
       if ($lasttime > 9) {
           $lasttime = int($lasttime);
       } elsif ($lasttime < 0.01) {
           $lasttime = 0;
       } else {
           $lasttime = sprintf("%3.2f",$lasttime);
       }
       if ($lasttime == 1) {
           $lasttime = '('.$lasttime.' '.&mt('second for').' '.$extraInfo.')';
       } else {
           $lasttime = '('.$lasttime.' '.&mt('seconds for').' '.$extraInfo.')';
       }
       #
       my $user_browser = $ENV{'browser.type'} if (exists($ENV{'browser.type'}));
       my $user_os      = $ENV{'browser.os'}   if (exists($ENV{'browser.os'}));
       if (! defined($user_browser) || ! defined($user_os)) {
           (undef,$user_browser,undef,undef,undef,$user_os) = 
                              &Apache::loncommon::decode_user_agent();
       }
       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>');
       $$prog_state{'laststart'}=&Time::HiRes::time();
     $r->rflush();      $r->rflush();
 }  }
   
 # close Progress Line  # close Progress Line
 sub Close_PrgWin {  sub Close_PrgWin {
     my ($r)=@_;      my ($r,$prog_state)=@_;
     $r->print('<script>popwin.close()</script>'."\n");      $r->print('<script>popwin.close()</script>'."\n");
       undef(%$prog_state);
     $r->rflush();       $r->rflush(); 
 }  }
   
   
   # ------------------------------------------------------- Puts directory header
   
   sub crumbs {
       my ($uri,$target,$prefix,$form)=@_;
       my $output='<br /><tt><b><font size="+2">'.$prefix.'/';
       if ($ENV{'user.adv'}) {
    my $path=$prefix.'/';
    foreach (split('/',$uri)) {
       unless ($_) { next; }
       $path.=$_;
       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;
       }
       unless ($uri=~/\/$/) { $output=~s/\/$//; }
       return $output.'</font></b></tt><br />';
   }
   
   
 1;  1;
   
 __END__  __END__
Removed from v.1.8  
changed lines
  Added in v.1.46

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