--- rat/lonpage.pm	2012/11/30 20:48:20	1.99
+++ rat/lonpage.pm	2015/07/17 19:11:03	1.111
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Page Handler
 #
-# $Id: lonpage.pm,v 1.99 2012/11/30 20:48:20 raeburn Exp $
+# $Id: lonpage.pm,v 1.111 2015/07/17 19:11:03 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -36,9 +36,11 @@ use strict;
 use Apache::Constants qw(:common :http);
 use Apache::lonnet;
 use Apache::loncommon();
+use Apache::lonhtmlcommon;
 use Apache::lonxml();
 use Apache::lonlocal;
 use Apache::lonmenu;
+use Apache::lonhomework;
 use HTML::TokeParser;
 use GDBM_File;
 use Apache::lonsequence;
@@ -186,6 +188,18 @@ 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);
+                  my ($pagesymb,$courseid,$domain,$name)=&Apache::lonnet::whichuser();
+                  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};
+                      }
+                  }
 # ----------------------------------------------------------------- Render page
 
                   @rows=();
@@ -215,6 +229,7 @@ sub handler {
                   my $contents=0;
                   my $nforms=0;
                   my $nuploads=0;
+                  my $ntimers=0;
                   my %turninpaths;
                   my %multiresps;
                   my $turninparent;
@@ -264,6 +279,7 @@ ENDEXT
 			      my $symb=&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid},$resid,$src);
 			      
 			      my $prefix=$_.'_';
+                              my $idprefix= join('_',($mapid,$resid,''));
                               my %posthash=('request.prefix' => $prefix,
 					    'LONCAPA_INTERNAL_no_discussion' => 'true',
 					    'symb' => $symb);
@@ -305,6 +321,12 @@ 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;
@@ -361,14 +383,39 @@ 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;
@@ -381,6 +428,61 @@ 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);
+                                          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')))) {
+                                              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 $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
+                                                  if ($first_access > 0) {
+                                                      my $timeremains = $first_access+$interval[0] - $now;
+                                                      if ($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;
+                                                      } else {
+                                                          $hastimeleft{$symb} = $slothastime;
+                                                      }
+                                                  } else {
+                                                      $hastimeleft{$symb} = $duedate - $now;
+                                                      $countdowndisp{$symb} = 'none';
+                                                  }
+                                              }
+                                          }
+                                      }
+                                  }
                               }
                               $thisdir=~s/\/[^\/]*$//;
 			      foreach (@rlinks) {
@@ -431,6 +533,49 @@ ENDEXT
                           if (($nforms) && ($nuploads)) {
                               $allscript .= &Apache::lonhtmlcommon::file_submissionchk_js(\%turninpaths,\%multiresps);
                           }
+                          if (($nforms) && (&Apache::lonhtmlcommon::htmlareabrowser())) {
+                              my %textarea_args = (
+                                  dragmath => 'math',
+                              );
+                              $allscript .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
+                          }
+                          if ($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 (keys(%uniquetimes) == 1) {
+                                  my (%uniquedisplays,%uniquedones,$currdisp);
+                                  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 = $countdowndisplay[0];
+                                      }
+                                  }
+                                  &add_countdown_timer($currdisp);
+                              }
+                          }
 # ------------------------------------------------------------------ Start body
 			  $r->print(&Apache::loncommon::start_page(undef,$allscript,
 								   {'force_register' => 1,
@@ -447,7 +592,7 @@ ENDEXT
                               }
                               $fmtag .= ' action="'.
 					&Apache::lonenc::check_encrypt($requrl)
-					.'">';
+					.'" id="LC_page">';
                               $r->print($fmtag);
 			  }
 		      } elsif (($target eq 'tex') || ($target eq 'tex_answer')) {
@@ -480,7 +625,6 @@ ENDEXT
                           my $avespan=$lcm/($#colcont+1);
                           for ($j=0;$j<=$#colcont;$j++) {
                               my $rid=$colcont[$j];
-
 			      my $metainfo =&get_buttons(\%hash,$rid).'<br />';
 			    unless (($target eq 'tex') || ($target eq 'tex_answer')) {
 				$r->print('<td colspan="'.$avespan.'"');
@@ -528,9 +672,15 @@ 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')) {
 				  $r->print('</td>');
@@ -554,9 +704,19 @@ ENDEXT
 		      }
 # ---------------------------------------------------------------- Submit, etc.
                       if ($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'
@@ -601,6 +761,11 @@ 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);
@@ -612,7 +777,9 @@ sub get_buttons {
 	    || !$hash->{'encrypted_'.$rid})) { 
 	$metainfo .='<a name="'.&escape($symb).'" />'.
 	    '<a href="'.$hash->{'src_'.$rid}.'.meta'.'" target="LONcatInfo">'.
-	    '<img src="/adm/lonMisc/cat_button.png" class="LC_icon" />'.
+            '<img src="/res/adm/pages/catalog.png" class="LC_icon"'.
+            ' alt="'.&mt('Show Metadata').'"'.
+            ' title="'.&mt('Show Metadata').'" />'.
 	    '</a>';
     }
     if (($hash->{'src_'.$rid} !~ m{^/uploaded/}) &&
@@ -620,7 +787,9 @@ sub get_buttons {
         $metainfo .= '<a href="/adm/evaluate?postdata='.
 	    &escape($esrc).
 	    '" target="LONcatInfo">'.
-	    '<img src="/adm/lonMisc/eval_button.png" class="LC_icon" />'.
+            '<img src="/res/adm/pages/eval.png" class="LC_icon"'.
+            ' alt="'.&mt('Provide my evaluation of this resource').'"'.
+            ' title="'.&mt('Provide my evaluation of this resource').'" />'.
 	    '</a>';
     }
     if (($hash->{'src_'.$rid}=~/$LONCAPA::assess_re/) &&
@@ -631,12 +800,16 @@ sub get_buttons {
 		'<a href="/adm/grades?symb='.&escape($symb).
 #               '&command=submission" target="LONcatInfo">'.
 		'&command=submission">'.
-		'<img src="/adm/lonMisc/subm_button.png" class="LC_icon" />'.
+                '<img src="/adm/lonMisc/subm_button.png" class="LC_icon"'.
+                ' alt="'.&mt('View Submissions for a Student or a Group of Students').'"'.
+                ' title="'.&mt('View Submissions for a Student or a Group of Students').'" />'.
 		'</a>'.
 		'<a href="/adm/grades?symb='.&escape($symb).
 #               '&command=gradingmenu" target="LONcatInfo">'.
 		'&command=gradingmenu">'.
-		'<img src="/adm/lonMisc/pgrd_button.png" class="LC_icon" />'.
+                '<img src="/res/adm/pages/pgrd.png" class="LC_icon"'.
+                ' alt="'.&mt('Content Grades').'"'.
+                ' title="'.&mt('Content Grades').'" />'.
 		'</a>';
 	}
 	if (&Apache::lonnet::allowed('opa',$env{'request.course.id'})) {
@@ -644,13 +817,64 @@ sub get_buttons {
 		'<a href="/adm/parmset?symb='.&escape($symb).
 #               '" target="LONcatInfo">'.
 		'" >'.
-		'<img src="/adm/lonMisc/pprm_button.png" class="LC_icon" />'.
+                '<img src="/adm/lonMisc/pprm_button.png" class="LC_icon"'.
+                ' alt="'.&mt('Content Settings').'"'.
+                ' title="'.&mt('Content Settings').'" />'.
 		'</a>';
 	}
     }
+    if (($env{'request.course.id'}) && (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
+        my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+        my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
+        my $file=&Apache::lonnet::declutter($hash->{'src_'.$rid});
+        my ($cfile,$home,$switchserver,$forceedit,$forceview) =
+            &Apache::lonnet::can_edit_resource($file,$cnum,$cdom,$hash->{'src_'.$rid},$symb);
+        if ($cfile ne '') {
+            my $jscall = &Apache::lonhtmlcommon::jump_to_editres($cfile,$home,$switchserver,
+                                                                 $forceedit,1,$symb,undef,
+                                                                 &escape($env{'form.title'}));
+            if ($jscall) {
+                my $icon = 'pcstr.png';
+                my $label = &mt('Edit');
+                my $title = &mt('Edit this resource');
+                my $pic = '<img src="'.&Apache::loncommon::lonhttpdurl('/res/adm/pages/'.$icon).'"'.
+                          ' class="LC_icon" alt="'.$label.'" title="'.$title.'" />';
+                $metainfo .= '&nbsp;<a href="javascript:'.$jscall.';">'.$pic.'</a>';
+            }
+        }
+    }
     return $metainfo;
 }
 
+sub add_countdown_timer {
+    my ($currdisp) = @_;
+    my ($collapse,$expand,$alttxt,$title);
+    if ($currdisp eq 'inline') {
+        $collapse = '&#9658;&nbsp;';
+    } else {
+        $expand = '&#9668;&nbsp;';
+    }
+    unless ($env{'environment.icons'} eq 'iconsonly') {
+        $alttxt = &mt('Timer');
+        $title = $alttxt.'&nbsp;';
+    }
+    my $desc = &mt('Countdown to due date/time');
+    my $output = <<END;
+<a href="javascript:toggleCountdown();" class="LC_menubuttons_link">
+<span id="ddcountcollapse" class="LC_menubuttons_inline_text">
+$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__