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Diff for /loncom/interface/lonnavmaps.pm between versions 1.147 and 1.159

version 1.147, 2003/02/27 02:45:32 version 1.159, 2003/03/13 20:46:36
Line 38 Line 38
 # YEAR=2002  # YEAR=2002
 # 1/1 Gerd Kortemeyer  # 1/1 Gerd Kortemeyer
 # Oct-Nov Jeremy Bowers  # Oct-Nov Jeremy Bowers
   # YEAR=2003
   # Jeremy Bowers ... lots of days
   
 package Apache::lonnavmaps;  package Apache::lonnavmaps;
   
 use strict;  use strict;
 use Apache::Constants qw(:common :http);  use Apache::Constants qw(:common :http);
 use Apache::loncommon();  use Apache::loncommon();
   use Apache::lonmenu();
 use POSIX qw (floor strftime);  use POSIX qw (floor strftime);
   
 my %navmaphash;  my %navmaphash;
Line 152  sub real_handler { Line 155  sub real_handler {
     }      }
   
     $r->print("<html><head>\n");      $r->print("<html><head>\n");
     $r->print("<title>Navigate Course Contents</title></head>");      $r->print("<title>Navigate Course Contents</title>");
   # ------------------------------------------------------------ Get query string
       &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['register']);
       
   # ----------------------------------------------------- Force menu registration
       my $addentries='';
       if ($ENV{'form.register'}) {
          $addentries=' onLoad="'.&Apache::lonmenu::loadevents().
      '" onUnload="'.&Apache::lonmenu::unloadevents().'"';
          $r->print(&Apache::lonmenu::registerurl(1));
       }
   
     # Header      # Header
     $r->print(&Apache::loncommon::bodytag('Navigate Course Contents','',      $r->print('</head>'.
                                           ''));                &Apache::loncommon::bodytag('Navigate Course Contents','',
                                       $addentries,'','',$ENV{'form.register'}));
     $r->print('<script>window.focus();</script>');      $r->print('<script>window.focus();</script>');
   
     $r->rflush();      $r->rflush();
Line 164  sub real_handler { Line 178  sub real_handler {
     # Now that we've displayed some stuff to the user, init the navmap      # Now that we've displayed some stuff to the user, init the navmap
     $navmap->init();      $navmap->init();
   
   
     $r->print('<br>&nbsp;');      $r->print('<br>&nbsp;');
     $r->rflush();      $r->rflush();
   
Line 175  sub real_handler { Line 188  sub real_handler {
         return OK;          return OK;
     }      }
   
       # See if there's only one map in the top-level... if so,
       # automatically display it
       my $iterator = $navmap->getIterator(undef, undef, undef, 0);
       my $depth = 1;
       $iterator->next();
       my $curRes = $iterator->next();
       my $sequenceCount = 0;
       my $sequenceId;
       while ($depth > 0) {
           if ($curRes == $iterator->BEGIN_MAP()) { $depth++; }
           if ($curRes == $iterator->END_MAP()) { $depth--; }
   
           if (ref($curRes) && $curRes->is_sequence()) {
               $sequenceCount++;
               $sequenceId = $curRes->map_pc();
           }
   
           $curRes = $iterator->next();
       }
   
       if ($sequenceCount == 1) {
           # The automatic iterator creation in the render call 
           # will pick this up.
           $ENV{'form.filter'} = "$sequenceId";
       }
   
     # renderer call      # renderer call
     my $render = render({ 'cols' => [0,1,2,3],      my $render = render({ 'cols' => [0,1,2,3],
                           'url' => '/adm/navmaps',                            'url' => '/adm/navmaps',
                           'printKey' => 1,                            'suppressNavmap' => 1,
                           'r' => $r});                            'r' => $r});
   
     $navmap->untieHashes();      $navmap->untieHashes();
Line 322  sub lastTry { Line 361  sub lastTry {
 }  }
   
 # This puts a human-readable name on the ENV variable.  # This puts a human-readable name on the ENV variable.
   # FIXME: This needs better logic: Who gets the advanced view of navmaps?
   #   As of 3-13-03, it's an open question. Guy doesn't want to check
   #   roles directly because it should be a check of capabilities for future
   #   role compatibity. There is no capability that matches this one for
   #   now, so this is done. (A hack for 1.0 might be to simply check roles
   #   anyhow.)
 sub advancedUser {  sub advancedUser {
     return $ENV{'user.adv'};      return $ENV{'user.adv'};
 }  }
Line 505  Most of these parameters are only useful Line 550  Most of these parameters are only useful
   
 =item * B<condenseParts>: A flag. If yes (default), if all parts of the problem have the same status and that status is Nothing Set, Correct, or Network Failure, then only one line will be displayed for that resource anyhow. If no, all parts will always be displayed. If showParts is 0, this is ignored.  =item * B<condenseParts>: A flag. If yes (default), if all parts of the problem have the same status and that status is Nothing Set, Correct, or Network Failure, then only one line will be displayed for that resource anyhow. If no, all parts will always be displayed. If showParts is 0, this is ignored.
   
 =item * B<jumpCount>: A string identifying the URL to place the anchor 'curloc' at. Default to no anchor at all. It is the responsibility of the renderer user to ensure that the #curloc is in the URL. By default, determined through the use of the ENV{} 'jump' and 'jumpType' information.  =item * B<jumpCount>: A string identifying the URL to place the anchor 'curloc' at. Default to no anchor at all. It is the responsibility of the renderer user to ensure that the #curloc is in the URL. By default, determined through the use of the ENV{} 'jump' information, and should normally "just work" correctly.
   
 =item * B<hereURL>: A URL identifying where to place the 'here' marker. By default, will pull this from the ENV{'form.here*'} info.  
   
 =item * B<hereSymb>: A Symb identifying where to place the 'here' marker. Default same as hereURL.  =item * B<here>: A Symb identifying where to place the 'here' marker. Default empty, which means no marker.
   
 =item * B<indentString>: A string identifying the indentation string to use. By default, this is a 25 pixel whitespace image with no alt text.  =item * B<indentString>: A string identifying the indentation string to use. By default, this is a 25 pixel whitespace image with no alt text.
   
Line 525  Most of these parameters are only useful Line 568  Most of these parameters are only useful
   
 =item * B<printCloseAll>: If true, print the "Close all folders" or "open all folders" links. Default is true.  =item * B<printCloseAll>: If true, print the "Close all folders" or "open all folders" links. Default is true.
   
 =item * B<filterFunc>: A function that takes the resource object as its only parameter and returns a true or false value. If true, the resource is displayed. If false, it is simply skipped in the display. By default, all resources are showne.  =item * B<filterFunc>: A function that takes the resource object as its only parameter and returns a true or false value. If true, the resource is displayed. If false, it is simply skipped in the display. By default, all resources are shown.
   
   =item * B<suppressNavmaps>: If true, will not display Navigate Content resources. Default to false.
   
 =back  =back
   
Line 579  sub render_resource { Line 624  sub render_resource {
     my $icon = "<img src='/adm/lonIcons/html.gif' alt='' border='0' />";      my $icon = "<img src='/adm/lonIcons/html.gif' alt='' border='0' />";
           
     if ($resource->is_problem()) {      if ($resource->is_problem()) {
         if ($part eq "0" || $params->{'condensed'}) {          if ($part eq "" || $params->{'condensed'}) {
             $icon = '<img src="/adm/lonIcons/problem.gif" alt="" border="0" />';              $icon = '<img src="/adm/lonIcons/problem.gif" alt="" border="0" />';
         } else {          } else {
             $icon = $params->{'indentString'};              $icon = $params->{'indentString'};
Line 606  sub render_resource { Line 651  sub render_resource {
             $linkopen .= "&condition=" . $it->{CONDITION} . '&hereType='              $linkopen .= "&condition=" . $it->{CONDITION} . '&hereType='
                 . $params->{'hereType'} . '&here=' .                  . $params->{'hereType'} . '&here=' .
                 &Apache::lonnet::escape($params->{'here'}) .                   &Apache::lonnet::escape($params->{'here'}) . 
                 '&jumpType=' . SYMB() . '&jump=' .                  '&jump=' .
                 &Apache::lonnet::escape($resource->symb()) .                   &Apache::lonnet::escape($resource->symb()) . 
                 "&folderManip=1'>";                  "&folderManip=1'>";
         } else {          } else {
Line 642  sub render_resource { Line 687  sub render_resource {
     my $curMarkerEnd = '';      my $curMarkerEnd = '';
   
     # Is this the current resource?      # Is this the current resource?
     if (!$params->{'displayedHereMarker'} &&      if (!$params->{'displayedHereMarker'} && 
         (($params->{'hereType'} == SYMB() &&           $resource->symb() eq $params->{'here'} ) {
           $resource->symb() eq $params->{'here'}) ||  
          ($params->{'hereType'} == URL() &&  
           $resource->src() eq $params->{'here'}))) {  
         $curMarkerBegin = '<font color="red" size="+2">&gt; </font>';          $curMarkerBegin = '<font color="red" size="+2">&gt; </font>';
         $curMarkerEnd = '<font color="red" size="+2">&lt;</font>';          $curMarkerEnd = '<font color="red" size="+2">&lt;</font>';
           $params->{'displayedHereMarker'} = 1;
     }      }
   
     if ($resource->is_problem() && $part ne "0" &&       if ($resource->is_problem() && $part ne "" && 
         !$params->{'condensed'}) {          !$params->{'condensed'}) {
         $partLabel = " (Part $part)";          $partLabel = " (Part $part)";
         $title = "";          $title = "";
Line 794  sub render { Line 837  sub render {
         $navmap = $args->{'navmap'};          $navmap = $args->{'navmap'};
     }      }
   
       my $r = $args->{'r'};
     my $queryString = $args->{'queryString'};      my $queryString = $args->{'queryString'};
     my $jumpToURL = $args->{'jumpToURL'};      my $jump = $args->{'jump'};
     my $jumpToSymb = $args->{'jumpToSymb'};      my $here = $args->{'here'};
     my $jumpType;      my $suppressNavmap = setDefault($args->{'suppressNavmap'}, 0);
     my $hereURL = $args->{'hereURL'};  
     my $hereSymb = $args->{'hereSymb'};  
     my $hereType;  
     my $here;  
     my $jump;  
     my $currentJumpIndex = setDefault($args->{'currentJumpIndex'}, 0);      
     my $currentJumpDelta = 2; # change this to change how many resources are displayed      my $currentJumpDelta = 2; # change this to change how many resources are displayed
                              # before the current resource when using #current                               # before the current resource when using #current
   
Line 837  sub render { Line 875  sub render {
         # Step two: Locate what kind of here marker is necessary          # Step two: Locate what kind of here marker is necessary
         # Determine where the "here" marker is and where the screen jumps to.          # Determine where the "here" marker is and where the screen jumps to.
   
         # We're coming from the remote. We have either a url, a symb, or nothing,  
         # and we need to figure out what.  
         # Preference: Symb  
           
         if ($ENV{'form.symb'}) {          if ($ENV{'form.symb'}) {
             $hereType = $jumpType = SYMB();  
             $here = $jump = $ENV{'form.symb'};              $here = $jump = $ENV{'form.symb'};
         } elsif ($ENV{'form.postdata'}) {          } elsif ($ENV{'form.postdata'}) {
             # couldn't find a symb, is there a URL?              # couldn't find a symb, is there a URL?
             my $currenturl = $ENV{'form.postdata'};              my $currenturl = $ENV{'form.postdata'};
             $currenturl=~s/^http\:\/\///;              #$currenturl=~s/^http\:\/\///;
             $currenturl=~s/^[^\/]+//;              #$currenturl=~s/^[^\/]+//;
                           
             $hereType = $jumpType = URL;              $here = $jump = &Apache::lonnet::symbread($currenturl);
             $here = $jump = $currenturl;  
         } else {  
             # Nothing  
             $hereType = $jumpType = NOTHING();  
         }          }
   
         # Step three: Ensure the folders are open          # Step three: Ensure the folders are open
         my $mapIterator = $navmap->getIterator(undef, undef, undef, 1);          my $mapIterator = $navmap->getIterator(undef, undef, undef, 1);
         my $depth = 1;          my $depth = 1;
         $mapIterator->next(); # discard the first BEGIN_MAP          $mapIterator->next(); # discard the first BEGIN_MAP
         my $curRes = $mapIterator->next();          my $curRes = $mapIterator->next();
         my $counter = 0;  
         my $found = 0;          my $found = 0;
                   
         # We only need to do this if we need to open the maps to show the          # We only need to do this if we need to open the maps to show the
Line 871  sub render { Line 900  sub render {
             if ($curRes == $mapIterator->BEGIN_MAP()) { $depth++; }              if ($curRes == $mapIterator->BEGIN_MAP()) { $depth++; }
             if ($curRes == $mapIterator->END_MAP()) { $depth--; }              if ($curRes == $mapIterator->END_MAP()) { $depth--; }
                           
             if (ref($curRes) &&               if (ref($curRes) && $curRes->symb() eq $here) {
                 ($hereType == SYMB() && $curRes->symb() eq $here) ||  
                 (ref($curRes) && $hereType == URL() && $curRes->src() eq $here)) {  
                 my $mapStack = $mapIterator->getStack();                  my $mapStack = $mapIterator->getStack();
                                   
                 # Ensure the parent maps are open                  # Ensure the parent maps are open
Line 889  sub render { Line 916  sub render {
                           
             $curRes = $mapIterator->next();              $curRes = $mapIterator->next();
         }                      }            
   
         # Since we changed the folders, (re-)locate the jump point, if any  
         $mapIterator = $navmap->getIterator(undef, undef, $filterHash, 0);  
         $depth = 1;  
         $mapIterator->next();  
         $curRes = $mapIterator->next();  
         my $foundJump = 0;  
           
         while ($depth > 0 && !$foundJump) {  
             if ($curRes == $mapIterator->BEGIN_MAP()) { $depth++; }  
             if ($curRes == $mapIterator->END_MAP()) { $depth--; }  
             if (ref($curRes)) { $counter++; }  
               
             if (ref($curRes) &&   
                 (($jumpType == SYMB() && $curRes->symb() eq $jump) ||  
                  ($jumpType == URL() && $curRes->src() eq $jump))) {  
                   
                 # This is why we have to use the main iterator instead of the  
                 # potentially faster DFS: The count has to be the same, so  
                 # the order has to be the same, which DFS won't give us.  
                 $currentJumpIndex = $counter;  
                 $foundJump = 1;  
             }  
               
             $curRes = $mapIterator->next();  
         }  
       
     }              }        
   
     if ( !defined($args->{'iterator'}) && $ENV{'form.folderManip'} ) { # we came from a user's manipulation of the nav page      if ( !defined($args->{'iterator'}) && $ENV{'form.folderManip'} ) { # we came from a user's manipulation of the nav page
         # If this is a click on a folder or something, we want to preserve the "here"          # If this is a click on a folder or something, we want to preserve the "here"
         # from the querystring, and get the new "jump" marker          # from the querystring, and get the new "jump" marker
         $hereType = $ENV{'form.hereType'};  
         $here = $ENV{'form.here'};          $here = $ENV{'form.here'};
         $jumpType = $ENV{'form.jumpType'} || NOTHING();  
         $jump = $ENV{'form.jump'};          $jump = $ENV{'form.jump'};
     }       } 
           
Line 953  sub render { Line 952  sub render {
         }          }
     }      }
           
       # (re-)Locate the jump point, if any
       my $mapIterator = $navmap->getIterator(undef, undef, $filterHash, 0);
       my $depth = 1;
       $mapIterator->next();
       my $curRes = $mapIterator->next();
       my $foundJump = 0;
       my $counter = 0;
       
       while ($depth > 0 && !$foundJump) {
           if ($curRes == $mapIterator->BEGIN_MAP()) { $depth++; }
           if ($curRes == $mapIterator->END_MAP()) { $depth--; }
           if (ref($curRes)) { $counter++; }
           
           if (ref($curRes) && $jump eq $curRes->symb()) {
               
               # This is why we have to use the main iterator instead of the
               # potentially faster DFS: The count has to be the same, so
               # the order has to be the same, which DFS won't give us.
               $args->{'currentJumpIndex'} = $counter;
               $foundJump = 1;
           }
           
           $curRes = $mapIterator->next();
       }
   
     my $showParts = setDefault($args->{'showParts'}, 1);      my $showParts = setDefault($args->{'showParts'}, 1);
     my $condenseParts = setDefault($args->{'condenseParts'}, 1);      my $condenseParts = setDefault($args->{'condenseParts'}, 1);
     # keeps track of when the current resource is found,      # keeps track of when the current resource is found,
     # so we can back up a few and put the anchor above the      # so we can back up a few and put the anchor above the
     # current resource      # current resource
     my $r = $args->{'r'};  
     my $printKey = $args->{'printKey'};      my $printKey = $args->{'printKey'};
     my $printCloseAll = $args->{'printCloseAll'};      my $printCloseAll = $args->{'printCloseAll'};
     if (!defined($printCloseAll)) { $printCloseAll = 1; }      if (!defined($printCloseAll)) { $printCloseAll = 1; }
Line 990  sub render { Line 1013  sub render {
     if ($printCloseAll) {      if ($printCloseAll) {
         if ($condition) {          if ($condition) {
             $result.="<a href=\"navmaps?condition=0&filter=&$queryString" .              $result.="<a href=\"navmaps?condition=0&filter=&$queryString" .
                 "&hereType=$hereType&here=" . Apache::lonnet::escape($here) .                  "&here=" . Apache::lonnet::escape($here) .
                 "\">Close All Folders</a>";                  "\">Close All Folders</a>";
         } else {          } else {
             $result.="<a href=\"navmaps?condition=1&filter=&$queryString" .              $result.="<a href=\"navmaps?condition=1&filter=&$queryString" .
                 "&hereType=$hereType&here=" . Apache::lonnet::escape($here) .                   "&here=" . Apache::lonnet::escape($here) . 
                 "\">Open All Folders</a>";                  "\">Open All Folders</a>";
         }          }
         $result .= "<br /><br />\n";          $result .= "<br /><br />\n";
Line 1026  sub render { Line 1049  sub render {
   
     my $displayedJumpMarker = 0;      my $displayedJumpMarker = 0;
     # Set up iteration.      # Set up iteration.
     my $depth = 1;      $depth = 1;
     $it->next(); # discard initial BEGIN_MAP      $it->next(); # discard initial BEGIN_MAP
     my $curRes = $it->next();      $curRes = $it->next();
     my $now = time();      my $now = time();
     my $in24Hours = $now + 24 * 60 * 60;      my $in24Hours = $now + 24 * 60 * 60;
     my $rownum = 0;      my $rownum = 0;
   
     # export "here" marker information      # export "here" marker information
     $args->{'here'} = $here;      $args->{'here'} = $here;
     $args->{'hereType'} = $hereType;  
   
     while ($depth > 0) {      while ($depth > 0) {
         if ($curRes == $it->BEGIN_MAP()) { $depth++; }          if ($curRes == $it->BEGIN_MAP()) { $depth++; }
Line 1057  sub render { Line 1079  sub render {
   
         # If this isn't an actual resource, continue on          # If this isn't an actual resource, continue on
         if (!ref($curRes)) {          if (!ref($curRes)) {
             $curRes = $it->next();  
             next;              next;
         }          }
   
Line 1065  sub render { Line 1086  sub render {
   
         # If this has been filtered out, continue on          # If this has been filtered out, continue on
         if (!(&$filterFunc($curRes))) {          if (!(&$filterFunc($curRes))) {
             $curRes = $it->next();  
             $args->{'isNewBranch'} = 0; # Don't falsely remember this              $args->{'isNewBranch'} = 0; # Don't falsely remember this
             next;              next;
         }           } 
   
           # If we're suppressing navmaps and this is a navmap, continue on
           if ($suppressNavmap && $curRes->src() =~ /^\/adm\/navmaps/) {
               next;
           }
   
         # Does it have multiple parts?          # Does it have multiple parts?
         $args->{'multipart'} = 0;          $args->{'multipart'} = 0;
         $args->{'condensed'} = 0;          $args->{'condensed'} = 0;
Line 1120  sub render { Line 1145  sub render {
                                           
                 }                  }
             }              }
           } 
                           
         } else {  
             # Not showing parts  
             @parts = ("0"); # show main part only  
         }  
   
         # If the multipart problem was condensed, "forget" it was multipart          # If the multipart problem was condensed, "forget" it was multipart
         if (scalar(@parts) == 1) {          if (scalar(@parts) == 1) {
             $args->{'multipart'} = 0;              $args->{'multipart'} = 0;
         }          }
   
         # In the event of a network error, display one part.  
         # If this is a single part, we can at least show the correct  
         # status, but if it's multipart, we're lost, since we can't  
         # retreive the metadata to count the parts  
         if ($curRes->{RESOURCE_ERROR}) {  
             @parts = ("0");  
         }  
   
         # Now, we've decided what parts to show. Loop through them and          # Now, we've decided what parts to show. Loop through them and
         # show them.          # show them.
         foreach my $part (@parts) {          foreach my $part ('', @parts) {
               if ($part eq '0') {
                   next;
               }
             $rownum ++;              $rownum ++;
             my $backgroundColor = $backgroundColors[$rownum % scalar(@backgroundColors)];              my $backgroundColor = $backgroundColors[$rownum % scalar(@backgroundColors)];
                           
Line 1181  sub render { Line 1197  sub render {
             $result .= "    </tr>\n";              $result .= "    </tr>\n";
             $args->{'isNewBranch'} = 0;              $args->{'isNewBranch'} = 0;
         }          }
           
         if ($r && $rownum % 20 == 0) {          if ($r && $rownum % 20 == 0) {
             $r->print($result);              $r->print($result);
             $result = "";              $result = "";
             $r->rflush();              $r->rflush();
         }          }
               } continue {
         $curRes = $it->next();          $curRes = $it->next();
     }      }
           
     # Print out the part that jumps to #curloc if it exists      # Print out the part that jumps to #curloc if it exists
       # delay needed because the browser is processing the jump before
       # it finishes rendering, so it goes to the wrong place!
       # onload might be better, but this routine has no access to that.
       # On mozilla, the 0-millisecond timeout seems to prevent this;
       # it's quite likely this might fix other browsers, too, and 
       # certainly won't hurt anything.
     if ($displayedJumpMarker) {      if ($displayedJumpMarker) {
         $result .= "<script>location += \"#curloc\";</script>\n";          $result .= "<script>setTimeout(\"location += '#curloc';\", 0)</script>\n";
     }      }
   
     $result .= "</table>";      $result .= "</table>";
Line 2680  sub countParts { Line 2702  sub countParts {
 sub extractParts {   sub extractParts { 
     my $self = shift;      my $self = shift;
           
     return if ($self->{PARTS});      return if (defined($self->{PARTS}));
     return if ($self->ext);      return if ($self->ext);
   
     $self->{PARTS} = [];      $self->{PARTS} = [];
   
     # Retrieve part count, if this is a problem      # Retrieve part count, if this is a problem
     if ($self->is_problem()) {      if ($self->is_problem()) {
         my $metadata = &Apache::lonnet::metadata($self->src(), 'allpossiblekeys');          my $metadata = &Apache::lonnet::metadata($self->src(), 'packages');
         if (!$metadata) {          if (!$metadata) {
             $self->{RESOURCE_ERROR} = 1;              $self->{RESOURCE_ERROR} = 1;
             $self->{PARTS} = [];              $self->{PARTS} = [];
             return;              return;
         }          }
           
         foreach (split(/\,/,$metadata)) {          foreach (split(/\,/,$metadata)) {
             if ($_ =~ /^parameter\_(.*)\_opendate$/) {              if ($_ =~ /^part_(.*)$/) {
                 my $part = $1;                  my $part = $1;
                 # check to see if part is turned off.                  # check to see if part is turned off.
                 if (Apache::loncommon::check_if_partid_hidden($part, $self->symb())) {                  if (! Apache::loncommon::check_if_partid_hidden($part, $self->symb())) {
                     push @{$self->{PARTS}}, $1;                      push @{$self->{PARTS}}, $1;
                 }                  }
             }              }
Removed from v.1.147  
changed lines
  Added in v.1.159

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