--- rat/lonpage.pm	2013/06/10 03:12:24	1.102
+++ rat/lonpage.pm	2016/05/30 04:50:39	1.115
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Page Handler
 #
-# $Id: lonpage.pm,v 1.102 2013/06/10 03:12:24 raeburn Exp $
+# $Id: lonpage.pm,v 1.115 2016/05/30 04:50:39 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -40,6 +40,8 @@ use Apache::lonhtmlcommon;
 use Apache::lonxml();
 use Apache::lonlocal;
 use Apache::lonmenu;
+use Apache::lonhomework;
+use Apache::lonparmset;
 use HTML::TokeParser;
 use GDBM_File;
 use Apache::lonsequence;
@@ -187,6 +189,26 @@ sub handler {
               my $firstres=$hash{'map_start_'.$requrl};
               my $lastres=$hash{'map_finish_'.$requrl};
               if (($firstres) && ($lastres)) {
+# ------------------------------------------------------------- Countdown Timer
+                  my $now = time;
+                  my ($pagefirstaccess,%hastimeleft,%countdowndisp,%donebutton,
+                      %donebtnextra,%buttonbytime,$donetime,$symbtosetdone);
+                  my ($pagesymb,$courseid,$domain,$name)=&Apache::lonnet::whichuser();
+                  unless ($pagesymb) {
+                      $pagesymb=&Apache::lonnet::symbread($requrl);
+                  }
+                  if ($pagesymb && ($courseid ne '') && ($domain ne '') && ($name ne '')) {
+                      my %times=&Apache::lonnet::get('firstaccesstimes',
+                                                     [$courseid."\0".$pagesymb],
+                                                     $domain,$name);
+                      if ($times{$courseid."\0".$pagesymb} =~ /^\d+$/) {
+                          $pagefirstaccess = $times{$courseid."\0".$pagesymb};
+                          if ($pagefirstaccess && $env{'form.LC_interval_done'} eq 'true') {
+                              $donetime = $now - $pagefirstaccess;
+                          }
+                      }
+                  }
+
 # ----------------------------------------------------------------- Render page
 
                   @rows=();
@@ -204,6 +226,27 @@ sub handler {
 			    my ($mapid,$resid)=split(/\./,$rid);
 			    $symbhash{$hash{'src_'.$rid}}=
 				[$hash{'src_'.$rid},$resid];
+                            if (($donetime) && ($symbtosetdone eq '')) {
+                                my $src = $hash{'src_'.$rid};
+                                if ($hash{'encrypted_'.$rid}) {
+                                    $src=&Apache::lonenc::encrypted($src);
+                                }
+                                my ($mapid,$resid)=split(/\./,$rid);
+                                my $symb=&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid},$resid,$src);
+                                if ($src =~ /$LONCAPA::assess_re/) {
+                                    my @interval=&Apache::lonnet::EXT("resource.0.interval",$symb);
+                                    if (@interval > 1) {
+                                        if (($interval[1] eq 'map') && ($pagefirstaccess)) {
+                                            my ($timelimit) = ($interval[0] =~ /^(\d+)/);
+                                            if ($timelimit) {
+                                                if ($pagefirstaccess + $timelimit > $now) {
+                                                    $symbtosetdone = $symb;
+                                                }
+                                            }
+                                        }
+                                    }
+                                }
+                            }
 		        }
 		     }
 		  }
@@ -216,6 +259,7 @@ sub handler {
                   my $contents=0;
                   my $nforms=0;
                   my $nuploads=0;
+                  my $ntimers=0;
                   my %turninpaths;
                   my %multiresps;
                   my $turninparent;
@@ -237,6 +281,16 @@ sub handler {
                   my $xmlheader='';
                   my $xmlbody='';
 
+# ---------------------------------------------------------- Handle Done button
+
+                  # Set the event timer to zero if the "done button" was clicked.
+                  if ($donetime && $symbtosetdone) {
+                      &Apache::lonparmset::storeparm_by_symb_inner($symbtosetdone,'0_interval',
+                                                                   2,$donetime,'date_interval',
+                                                                   $name,$domain);
+                      undef($env{'form.LC_interval_done'});
+                  }
+
 # --------------------------------------------- Get SSI output, post parameters
 
                   for ($i=0;$i<=$#rows;$i++) {
@@ -307,6 +361,12 @@ ENDEXT
                                   #some additional cleanup necessary for LateX (due to limitations of table environment 
 				  $output =~ s/(\\vskip\s*\d+mm)\s*(\\\\)+/$1/g;
 			      }
+                              my $matheditor;
+                              if ($output =~ /\Qjavascript:LC_mathedit_HWVAL_\E/) {
+                                  $matheditor = 'dragmath';
+                              } elsif ($output =~ /LCmathField/) {
+                                  $matheditor = 'lcmath';
+                              }
                               my $parser=HTML::TokeParser->new(\$output);
                               my $token;
                               my $thisdir=$src;
@@ -363,16 +423,39 @@ ENDEXT
                               }
                               $output=~s/\<\/body\>.*//si;
                               if ($output=~/\<form/si) {
+                                  my $hastimer; 
 				  $nforms++;
                                   $output=~s/\<form[^\>]*\>//gsi;
                                   $output=~s/\<\/form[^\>]*\>//gsi;
                                   if ($output=~/\<input[^\>]+name\s*=\s*[\'\"]*HWFILE/) {
                                       $nuploads++;
                                   }
+                                  if ($output=~/\<input[^\>]+name\s*=\s*[\'\"]*accessbutton/) {
+                                      $ntimers++;
+                                      $hastimer = 1;
+                                  }
                                   $output=~
 				      s/\<((?:input|select|button|textarea)[^\>]+)name\s*\=\s*[\'\"]*([^\'\"]+)[\'\"]*([^\>]*)\>/\<$1 name="$prefix$2" $3\>/gsi;
                                   $output=~
                                       s/\<((?:input|select|button|textarea)[^\>]+)id\s*\=\s*[\'\"]*([^\'\"]+)[\'\"]*([^\>]*)\>/\<$1 id="$idprefix$2" $3\>/gsi;
+                                  if ($hastimer) {
+                                      $output=~
+                                          s/\<(input[^\>]+name=\Q"$prefix\Eaccessbutton"[^\>]+)(?:\Qdocument.markaccess.submit();\E)([^\>]*)\>/\<$1pageTimer(this.form,'$prefix')$2\>/gsi;
+                                      $output=~  s/\<(input[^\>]+name=\Q"$prefix\Emarkaccess"[^\>]+value=["'])(?:yes)(['"][^\>]*)\>/\<$1$2\>/gsi;
+                                  }
+                                  if ($matheditor eq 'dragmath') {
+                                      $output=~
+                                          s/(\Qjavascript:LC_mathedit_\E)(HWVAL_)([^'"]+?)(\(['"]*)(\QHWVAL_\E\3['"]\)\;void\(0\)\;)/$1$idprefix$2$3$4$idprefix$5/g;
+                                      $output=~
+                                          s/(function\s+LC_mathedit_)(HWVAL_)([^'"]+?)(\s+\(LCtextline\))/$1$idprefix$2$3$4/g;
+                                  } elsif ($matheditor eq 'lcmath') {
+                                      $output=~
+                                          s/(var\s+LCmathField\s+=\s+document\.getElementById\(['"])([^'"]+?)(['"]\)\;)/$1$idprefix$2$3/g;
+                                  }
+                                  $output=~
+                                      s/(\Q<div id="msg_\E)(\Qsubmit_\E)([^"]*)(\Q" style="display:none">\E)/<input type="hidden" name="$prefix$2$3_pressed" id="$idprefix$2$3_pressed" value="" \/>$1$idprefix$2$3$4/g;
+                                  $output=~
+                                      s/(\Q<td class="LC_status_\E)(\Qsubmit_\E)([^\"]*)(\s*[^\"]*"\>)/$1$idprefix$2$3$4/g;
                                   if ($nuploads) {
                                       $output=~
                                           s/\<(input[^\>]+name=\"\Q$prefix\EHWFILE[^\>]+)\s*id\s*\=\s*[\'\"]*([^\'\"]+)[\'\"]*([^\)]*)\>/\<$1 id="$prefix$2" $3\>/gsi;
@@ -385,6 +468,102 @@ ENDEXT
                                   }
                                   $output=~
                                       s/\<((?:input|select)[^\>]+\Qjavascript:setSubmittedPart\E)\(\s*[\'\"]([^\'\"]+)[\'\"]*\s*\)/\<$1('$2','$prefix')/gsi;
+                                  $output=~
+                                      s/\<(input[^\>]+\Qonfocus=\"javascript:disableAutoComplete\E)\(\'([^\']+)\'\)(;\")/\<$1('$idprefix$2')$3/gsi;
+                                  unless ($hastimer) {
+                                      if ($src =~ /$LONCAPA::assess_re/) {
+                                          %Apache::lonhomework::history =
+                                              &Apache::lonnet::restore($symb,$courseid,$domain,$name);
+                                          my $type = 'problem';
+                                          if ($src =~ /\.task$/) {
+                                              $type = 'Task';
+                                          }
+                                          my ($status,$accessmsg,$slot_name,$slot) =
+                                              &Apache::lonhomework::check_slot_access('0',$type,$symb,$pagesymb);
+                                          undef(%Apache::lonhomework::history);
+                                          my $probstatus = &Apache::lonnet::EXT("resource.0.problemstatus",$symb);
+                                          if (($status eq 'CAN_ANSWER') || (($status eq 'CANNOT_ANSWER') && 
+                                              (($probstatus eq 'no') || ($probstatus eq 'no_feedback_ever'))) ||
+                                              (($status eq 'NOT_YET_VIEWED') && ($posthash{'markaccess'} eq 'yes'))) {
+                                              my ($slothastime,$timerhastime);
+                                              if ($slot_name ne '') {
+                                                  if (ref($slot) eq 'HASH') {
+                                                      if (($slot->{'starttime'} < $now) &&
+                                                          ($slot->{'endtime'} > $now)) {
+                                                          $slothastime = $now - $slot->{'endtime'};
+                                                      }
+                                                  }
+                                              }
+                                              my $duedate = &Apache::lonnet::EXT("resource.0.duedate",$symb);
+                                              my @interval=&Apache::lonnet::EXT("resource.0.interval",$symb);
+                                              if (@interval > 1) {
+                                                  my $first_access;
+                                                  if ($interval[1] eq 'map') {
+                                                      my $ignorecache;
+                                                      if ($env{'form.'.$prefix.'markaccess'} eq 'yes') {
+                                                          $ignorecache = 1;
+                                                      }
+                                                      $first_access=&Apache::lonnet::get_first_access($interval[1],undef,$pagesymb,$ignorecache);
+                                                      if (($first_access) && (!$pagefirstaccess)) {
+                                                          $pagefirstaccess = $first_access;
+                                                      }
+                                                  } else {
+                                                      $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
+                                                  }
+                                                  if ($first_access > 0) {
+                                                      my ($timelimit) = ($interval[0] =~ /^(\d+)/);
+                                                      if ($timelimit) {
+                                                          my $timeremains = $timelimit + $first_access - $now;
+                                                          if ($timeremains > 0) {
+                                                              $timerhastime = $timeremains;
+                                                          }
+                                                      }
+                                                  }
+                                              }
+                                              if (($duedate && $duedate > $now) ||
+                                                  (!$duedate && $timerhastime > 0) ||
+                                                  ($slot_name ne '' && $slothastime)) {
+                                                  if ((@interval > 1 && $timerhastime) ||
+                                                      ($type eq 'Task' && $slothastime)) {
+                                                      $countdowndisp{$symb} = 'inline';
+                                                      if ((@interval > 1) && ($timerhastime)) {
+                                                          $hastimeleft{$symb} = $timerhastime;
+                                                          if ($pagefirstaccess) {
+                                                              my ($timelimit,$usesdone,$donebuttontext,$proctor,$secret);
+                                                              ($timelimit,my $donesuffix) = split(/_/,$interval[0],2);
+                                                              if ($donesuffix =~ /^done\:([^\:]+)\:(.*)$/) {
+                                                                  $usesdone = 'done';
+                                                                  $donebuttontext = $1;
+                                                                  (undef,$proctor,$secret) = split(/_/,$2);
+                                                              } elsif ($donesuffix =~ /^done(|_.+)$/) {
+                                                                  $donebuttontext = &mt('Done');
+                                                                  ($usesdone,$proctor,$secret) = split(/_/,$donesuffix);
+                                                              }
+                                                              if ($usesdone eq 'done') {
+                                                                  $donebutton{$symb} = $timelimit;
+                                                                  push(@{$buttonbytime{$timelimit}},$symb);
+                                                                  $donebtnextra{$symb} = {
+                                                                                              text    => $donebuttontext,
+                                                                                              proctor => $proctor,
+                                                                                              secret  => $secret,
+                                                                                              type    => $interval[1],
+                                                                                         };
+                                                              }
+                                                          }
+                                                      } else {
+                                                          $hastimeleft{$symb} = $slothastime;
+                                                      }
+                                                  } else {
+                                                      $hastimeleft{$symb} = $duedate - $now;
+                                                      $countdowndisp{$symb} = 'none';
+                                                  }
+                                                  unless ($donebutton{$symb}) {
+                                                      $donebutton{$symb} = 0;
+                                                  }
+                                              }
+                                          }
+                                      }
+                                  }
                               }
                               $thisdir=~s/\/[^\/]*$//;
 			      foreach (@rlinks) {
@@ -441,6 +620,62 @@ ENDEXT
                               );
                               $allscript .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
                           }
+                          if ($ntimers) {
+                              $allscript .= '<script type="text/javascript">'."\n".
+                                            '// <![CDATA['."\n".
+                                            'function pageTimer(form,prefix) {'."\n".
+                                            "   form.elements[prefix+'markaccess'].value = 'yes';\n".
+                                            "   form.submit();\n".
+                                            '}'."\n".
+                                            '// ]]>'.
+                                            "\n</script>\n";
+                          }
+                          if (keys(%hastimeleft)) {
+                              my (%uniquetimes,%uniquedisplays);
+                              foreach my $item (values(%hastimeleft)) {
+                                  if (exists($uniquetimes{$item})) {
+                                      $uniquetimes{$item} ++; 
+                                  } else {
+                                      $uniquetimes{$item} = 1;
+                                  }
+                              }
+                              if (scalar(keys(%uniquetimes)) == 1) {
+                                  my (%uniquedisplays,%uniquedones,$currdisp,$donebuttontime,
+                                      $donebuttonextras);
+                                  if (keys(%countdowndisp)) {
+                                      foreach my $item (values(%countdowndisp)) {
+                                          if (exists($uniquedisplays{$item})) {
+                                              $uniquedisplays{$item} ++;
+                                          } else {
+                                              $uniquedisplays{$item} = 1;
+                                          }
+                                      }
+                                      my @countdowndisplay = keys(%uniquedisplays);
+                                      if (scalar(@countdowndisplay) == 1) {
+                                          $currdisp = $countdowndisplay[0];
+                                      }
+                                  }
+                                  if (keys(%donebutton)) {
+                                      foreach my $item (values(%donebutton)) {
+                                          if (exists($uniquedones{$item})) {
+                                              $uniquedones{$item} ++;
+                                          } else {
+                                              $uniquedones{$item} = 1;
+                                          }
+                                      }
+                                      my @donebuttons = sort { $ <=> $b } (keys(%uniquedones));
+                                      if (scalar(@donebuttons) == 1) {
+                                          if ($donebuttons[0]) {
+                                              $donebuttontime = $donebuttons[0];
+                                              if (ref($buttonbytime{$donebuttontime}) eq 'ARRAY') {
+                                                  $donebuttonextras = $donebtnextra{$buttonbytime{$donebuttontime}->[0]};
+                                              }
+                                          }
+                                      }
+                                  }
+                                  &add_countdown_timer($currdisp,$donebuttontime,$donebuttonextras);
+                              }
+                          }
 # ------------------------------------------------------------------ Start body
 			  $r->print(&Apache::loncommon::start_page(undef,$allscript,
 								   {'force_register' => 1,
@@ -457,7 +692,7 @@ ENDEXT
                               }
                               $fmtag .= ' action="'.
 					&Apache::lonenc::check_encrypt($requrl)
-					.'">';
+					.'" id="LC_page">';
                               $r->print($fmtag);
 			  }
 		      } elsif (($target eq 'tex') || ($target eq 'tex_answer')) {
@@ -537,9 +772,15 @@ ENDEXT
                                   $r->print('>'.$metainfo.'<embed src="'.
                                     $hash{'src_'.$rid}.'"></embed>');
                               } elsif (&Apache::lonnet::declutter($hash{'src_'.$rid}) !~/\.(sequence|page)$/) {
-                                  $r->print($metainfo.'<b>'.$hash{'title_'.$rid}.'</b><br />'.
-                                  &mt('It is recommended that you use an up-to-date virus scanner before handling this file.').'</p><p><table>'.
-                                  &Apache::londocs::entryline(0,&mt("Click to download or use your browser's Save Link function"),'/'.&Apache::lonnet::declutter($hash{'src_'.$rid})).'</table></p><br />');
+                                  $r->print($metainfo.'<b>'.$hash{'title_'.$rid}.'</b><br />');
+                                  unless ($cellemb{$rid} eq 'wrp') {
+                                      $r->print(&mt('It is recommended that you use an up-to-date virus scanner before handling this file.'));
+                                  }
+                                  $r->print('</p><p><table>'.
+                                            &Apache::londocs::entryline(0,
+                                                                        &mt("Click to download or use your browser's Save Link function"),
+                                                                        '/'.&Apache::lonnet::declutter($hash{'src_'.$rid})).
+                                                                        '</table></p><br />');
                               }
 			      unless (($target eq 'tex') || ($target eq 'tex_answer')) {
 				  $r->print('</td>');
@@ -563,9 +804,19 @@ ENDEXT
 		      }
 # ---------------------------------------------------------------- Submit, etc.
                       if ($nforms) {
+                          my $class;
+                          if ($nforms > 1) {
+                              $class = ' class="LC_hwk_submit"';
+                              if ($ntimers) {
+                                  $nforms = 1;
+                                  $class = '';
+                              }
+                          }
                           $r->print(
-	                  '<input name="all_submit" value="Submit All" type="'.
-			  (($nforms>1)?'submit':'hidden').'"></input></form>');
+	                  '<input name="all_submit" value="'.&mt('Submit All').'" type="'.
+			  (($nforms>1)?'submit':'hidden').'"'.$class.' id="all_submit" />'.
+                          '<div id="msg_all_submit" style="display:none">'.
+                          &mt('Processing your submission ...').'</div></form>');
                       }
 		      unless (($target eq 'tex') || ($target eq 'tex_answer')) {
 			  $r->print(&Apache::loncommon::end_page({'discussion'
@@ -610,6 +861,11 @@ sub get_buttons {
     my $symb=&Apache::lonnet::encode_symb($hash->{'map_id_'.$mapid},
 					  $resid,
 					  $hash->{'src_'.$rid});
+    unless ($env{'request.role.adv'}) {
+        if (&Apache::lonnet::EXT('resource.0.buttonshide',$symb)) {
+            return;
+        }
+    }
     if ($hash->{'encrypted_'.$rid}) {
 	$symb=&Apache::lonenc::encrypted($symb);
 	$esrc=&Apache::lonenc::encrypted($esrc);
@@ -690,6 +946,48 @@ sub get_buttons {
     return $metainfo;
 }
 
+sub add_countdown_timer {
+    my ($currdisp,$donebuttontime,$donebuttonextras) = @_;
+    my ($collapse,$expand,$alttxt,$title,$donebutton);
+    if ($currdisp eq 'inline') {
+        $collapse = '&#9658;&nbsp;';
+    } else {
+        $expand = '&#9668;&nbsp;';
+    }
+    if ($donebuttontime) {
+        my ($type,$proctor,$donebuttontext);
+        if (ref($donebuttonextras) eq 'HASH') {
+            $proctor = $donebuttonextras->{'proctor'};
+            $donebuttontext = $donebuttonextras->{'text'};
+            $type = $donebuttonextras->{'type'};
+        } else {
+            $donebuttontext = &mt('Done');
+        }
+        $donebutton = 
+            &Apache::lonmenu::done_button_js($type,'','',$proctor,$donebuttontext);
+    }
+    unless ($env{'environment.icons'} eq 'iconsonly') {
+        $alttxt = &mt('Timer');
+        $title = $alttxt.'&nbsp;';
+    }
+    my $desc = &mt('Countdown to due date/time');
+    my $output = <<END;
+$donebutton
+<a href="javascript:toggleCountdown();" class="LC_menubuttons_link">
+<span id="ddcountcollapse" class="LC_menubuttons_inline_text">
+$collapse
+</span></a>
+<span id="duedatecountdown" class="LC_menubuttons_inline_text" style="display: $currdisp;"></span>
+<a href="javascript:toggleCountdown();" class="LC_menubuttons_link">
+<span id="ddcountexpand" class="LC_menubuttons_inline_text" >$expand</span>
+<img src="/res/adm/pages/timer.png" title="$desc" class="LC_icon" alt="$alttxt" /><span class="LC_menubuttons_inline_text">$title</span></a>
+END
+    &Apache::lonhtmlcommon::clear_breadcrumb_tools();
+    &Apache::lonhtmlcommon::add_breadcrumb_tool('tools',$output);
+    return;
+}
+
+
 1;
 __END__