--- loncom/homework/lonhomework.pm	2023/07/05 16:58:52	1.344.2.10.4.2
+++ loncom/homework/lonhomework.pm	2024/02/27 17:10:23	1.344.2.10.4.7
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # The LON-CAPA Homework handler
 #
-# $Id: lonhomework.pm,v 1.344.2.10.4.2 2023/07/05 16:58:52 raeburn Exp $
+# $Id: lonhomework.pm,v 1.344.2.10.4.7 2024/02/27 17:10:23 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -49,6 +49,8 @@ use Apache::matchresponse();
 use Apache::chemresponse();
 use Apache::functionplotresponse();
 use Apache::drawimage();
+use Apache::loncourseuser();
+use Apache::grades();
 use Apache::Constants qw(:common);
 use Apache::loncommon();
 use Apache::lonparmset();
@@ -160,9 +162,19 @@ sub get_target {
                 return ('web','answer');
             } elsif (($env{'form.problemmode'} eq 'saveedit') ||
                      ($env{'form.problemmode'} eq 'undo')) {
-                return ('modified','no_output_web','edit');
+                my %editors = &Apache::loncommon::permitted_editors();
+                if ($editors{'edit'}) {
+                    return ('modified','no_output_web','edit');
+                } else {
+                    return ('web');
+                }
             } elsif ($env{'form.problemmode'} eq 'edit') {
-		return ('no_output_web','edit');
+                my %editors = &Apache::loncommon::permitted_editors();
+                if ($editors{'edit'}) {
+		    return ('no_output_web','edit');
+                } else {
+                    return ('web');
+                }
 	    } else {
 		return ('web');
 	    }
@@ -721,6 +733,9 @@ sub setuppermissions {
 	$env{'request.course.sec'} !~ /^\s*$/) {
 	$viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'}.
                                                '/'.$env{'request.course.sec'});
+        if ($viewgrades) {
+            $Apache::lonhomework::viewgradessec = $env{'request.course.sec'};
+        }
     }
     $Apache::lonhomework::viewgrades = $viewgrades;
 
@@ -738,6 +753,9 @@ sub setuppermissions {
 	$modifygrades = 
 	    &Apache::lonnet::allowed('mgr',$env{'request.course.id'}.
 				     '/'.$env{'request.course.sec'});
+        if ($modifygrades) {
+            $Apache::lonhomework::modifygradessec = $env{'request.course.sec'};
+        }
     }
     $Apache::lonhomework::modifygrades = $modifygrades;
 
@@ -756,7 +774,9 @@ sub setuppermissions {
 sub unset_permissions {
     undef($Apache::lonhomework::queuegrade);
     undef($Apache::lonhomework::modifygrades);
+    undef($Apache::lonhomework::modifygradessec);
     undef($Apache::lonhomework::viewgrades);
+    undef($Apache::lonhomework::viewgradessec);
     undef($Apache::lonhomework::browse);
 }
 
@@ -855,7 +875,7 @@ STATE
 
 sub analyze_header {
     my ($request) = @_;
-    my $js = &Apache::structuretags::setmode_javascript();
+    my $js = &Apache::lonxml::setmode_javascript();
 
     # Breadcrumbs
     my $brcrum = [{'href' => &Apache::loncommon::authorspace($request->uri),
@@ -871,18 +891,26 @@ sub analyze_header {
                                        {'bread_crumbs' => $brcrum,})
        .&Apache::loncommon::head_subbox(
                 &Apache::loncommon::CSTR_pageheader());
+    my %lt = &Apache::lonlocal::texthash(
+                 edit => 'Edit',
+                 editxml => 'EditXML',
+             );
     $result .= 
             '<form name="lonhomework" method="post" action="'.
 	    &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
             '<input type="hidden" name="problemmode" value="'.
             $env{'form.problemmode'}.'" />'.
 	    &Apache::structuretags::remember_problem_state().'
-            <div class="LC_edit_problem_analyze_header">
-            <input type="button" name="submitmode" value="'.&mt("EditXML").'" '.
-            'onclick="javascript:setmode(this.form,'."'editxml'".')" />
-            <input type="button" name="submitmode" value="'.&mt('Edit').'" '.
-            'onclick="javascript:setmode(this.form,'."'edit'".')" />
-            <hr />
+            <div class="LC_edit_problem_analyze_header">';
+     my %editors = &Apache::loncommon::permitted_editors();
+     foreach my $item ('editxml','edit') {
+         next unless ($editors{$item});
+         $result .= '<input type="button" name="submitmode" value="'.$lt{$item}.'" '.
+                    'onclick="javascript:setmode(this.form,'."'$item'".')" />'.
+                    "\n";
+     }
+     $result .=
+            '<hr />
             <input type="button" name="submitmode" value="'.&mt("View").'" '.
             'onclick="javascript:setmode(this.form,'."'view'".')" />
             <hr />
@@ -1087,7 +1115,7 @@ sub editxmlmode {
 	my $js =
 	    &Apache::edit::js_change_detection(). 
 	    &Apache::loncommon::resize_textarea_js().
-            &Apache::structuretags::setmode_javascript().
+            &Apache::lonxml::setmode_javascript().
             &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
 
     # Breadcrumbs
@@ -1125,7 +1153,8 @@ sub editxmlmode {
 
     $result .= '<ol class="LC_primary_menu" style="display:inline-block;font-size:90%;vertical-align:middle;">';
 
-    unless ($env{'environment.nocodemirror'}) {
+    my $nocodemirror = &Apache::loncommon::nocodemirror();
+    unless ($nocodemirror) {
         # dropdown menus
         $result .= Apache::lonmenu::create_submenu("#", "",
             &mt("Problem Templates"), template_dropdown_datastructure());
@@ -1157,7 +1186,7 @@ sub editxmlmode {
         '</textarea> <div id="LC_aftertextarea"> </div> </form>';
 
     my $resource = $env{'request.ambiguous'};
-    unless($env{'environment.nocodemirror'}){
+    unless ($nocodemirror) {
         $result .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined-xml.css">
         <script src="/adm/codemirror/codemirror-compressed-xml.js"></script>
         <script>
@@ -1204,7 +1233,7 @@ sub editxmlmode {
 #    Render the page in whatever target desired.
 #
 sub renderpage {
-    my ($request,$file,$targets,$return_string,$donebuttonmsg) = @_;
+    my ($request,$file,$targets,$return_string,$donebuttonmsg,$viewasuser,$symb) = @_;
 
     my @targets = @{$targets || [&get_target()]};
     &Apache::lonhomework::showhashsubset(\%env,'form.');
@@ -1243,6 +1272,10 @@ sub renderpage {
 	if ($target eq 'answer') { &showhash(%Apache::lonhomework::history); }
 	if ($target eq 'web') {&Apache::lonhomework::showhashsubset(\%env,'^form');}
 
+        if (($target eq 'web') && ($viewasuser ne '') && ($symb ne '')) {
+            $env{'request.user_in_effect'} = $viewasuser;
+        }
+
 	&Apache::lonxml::debug("Should be parsing now");
 	$result .= &Apache::lonxml::xmlparse($request, $target, $problem,
 					     &setup_vars($target),%mystyle);
@@ -1268,15 +1301,23 @@ sub renderpage {
 	    #}
 #	    $request->print($result);
 	    $overall_result.=$result;
+            if (($target eq 'web') && ($viewasuser ne '') && ($symb ne '')) {
+                my ($vuname,$vudom) = split(/:/,$viewasuser);
+                $overall_result .= &Apache::grades::view_as_user($symb,$vuname,$vudom).
+                                   '</body></html>';
+            }
 #	    $request->rflush();
 	}
+        if (($target eq 'web') && ($viewasuser ne '') && ($symb ne '')) {
+            undef($env{'request.user_in_effect'});
+        }
 	#$request->print(":Result ends");
 	#my $td=&tv_interval($t0);
     }
     if (!$return_string) {
 	&Apache::lonxml::add_messages(\$overall_result);
-	$request->print($overall_result);   
-	$request->rflush();   
+	$request->print($overall_result);
+	$request->rflush();
     } else {
 	return $overall_result;
     }
@@ -1581,7 +1622,13 @@ sub handler {
                      ($env{'form.problemmode'} eq 'saveeditxml') ||
                      ($env{'form.problemmode'} eq 'saveviewxml') ||
                      ($env{'form.problemmode'} eq 'undoxml')) {
-		&editxmlmode($request,$file);
+                my %editors = &Apache::loncommon::permitted_editors();
+                if (($editors{'xml'}) || ($env{'form.problemmode'} eq 'saveviewxml') || ($env{'form.problemmode'} eq 'undoxml')) {
+		    &editxmlmode($request,$file);
+                } else {
+                    &update_construct_style();
+                    &renderpage($request,$file);
+                }
 	    } elsif ($env{'form.problemmode'} eq 'calcanswers') {
 		&analyze($request,$file);
 	    } else {
@@ -1597,16 +1644,40 @@ sub handler {
     } else {
         # Set the event timer to zero if the "done button" was clicked.  The button is
         # part of the doneButton form created in lonmenu.pm
-        my ($donebuttonresult,$donemsg);
+        my ($donebuttonresult,$donemsg,$viewasuser);
         if ($symb && $env{'form.LC_interval_done'} eq 'true') {
             ($donebuttonresult,$donemsg) = &zero_timer($symb);
             undef($env{'form.LC_interval_done'});
             undef($env{'form.LC_interval_done_proctorpass'});
         }
+        if (($env{'form.LC_viewas'} ne '') && $symb && $env{'request.course.id'} &&
+            ($Apache::lonhomework::viewgrades || $Apache::lonhomework::modifygrades)) {
+            if ($env{'form.LC_viewas'} =~ /^($match_username):($match_domain)$/) {
+                my ($possuname,$possudom) = ($1,$2);
+                my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+                my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
+                my ($canview,$posssec);
+                if ($env{'request.course.sec'} ne '') {
+                    if ($Apache::lonhomework::modifygradessec eq $env{'request.course.sec'}) {
+                        $canview = 'section';
+                        $posssec = $env{'request.course.sec'};
+                    } elsif ($Apache::lonhomework::viewgradessec eq $env{'request.course.sec'}) {
+                        $canview = 'section';
+                        $posssec = $env{'request.course.sec'};
+                    }
+                }
+                my $crstype = &Apache::loncommon::course_type();
+                if (&Apache::loncourseuser::is_course_user($possudom,$possuname,$cdom,$cnum,
+                                                           $canview,$crstype,$posssec)) {
+                    $viewasuser = $possuname.':'.$possudom;
+                }
+            }
+            undef($env{'form.LC_viewas'});
+        }
 	# just render the page normally outside of construction space
 	&Apache::lonxml::debug("not construct");
         undef(@Apache::lonhomework::ltipassback);
-	&renderpage($request,$file,undef,undef,$donemsg);
+	&renderpage($request,$file,undef,undef,$donemsg,$viewasuser,$symb);
         if (@Apache::lonhomework::ltipassback) {
             unless ($registered_cleanup) {
                 my $handlers = $request->get_handlers('PerlCleanupHandler');
@@ -1811,8 +1882,8 @@ sub do_ltipassback {
                     my $url = $item->{'pburl'};
                     my $type = $item->{'pbtype'};
                     my $scope = $item->{'scope'};
-                    my $map = $item->{'ltimap'};
-                    my $symb = $item->{'ltisymb'};
+                    my $map = $item->{'pbmap'};
+                    my $symb = $item->{'pbsymb'};
                     my $uname = $item->{'uname'};
                     my $udom = $item->{'udom'};
                     my $keynum = $item->{'lti'}->{'cipher'};
@@ -1822,8 +1893,8 @@ sub do_ltipassback {
                     if ($scope eq 'resource') {
                         $total = $item->{'total'};
                         $possible = $item->{'possible'};
-                    } elsif ($scope eq 'map') {
-                        ($total,$possible) = &get_lti_score($uname,$udom,$map);
+                    } elsif (($scope eq 'map') || ($scope eq 'nonrec')) {
+                        ($total,$possible) = &get_lti_score($uname,$udom,$map,$scope);
                     } elsif ($scope eq 'course') {
                         ($total,$possible) = &get_lti_score($uname,$udom);
                     }
@@ -1838,7 +1909,7 @@ sub do_ltipassback {
 }
 
 sub get_lti_score {
-    my ($uname,$udom,$mapurl) = @_;
+    my ($uname,$udom,$mapurl,$scope) = @_;
     my $navmap = Apache::lonnavmaps::navmap->new($uname,$udom);
     if (ref($navmap)) {
         my $iterator;
@@ -1846,7 +1917,11 @@ sub get_lti_score {
             my $map = $navmap->getResourceByUrl($mapurl);
             my $firstres = $map->map_start();
             my $finishres = $map->map_finish();
-            $iterator = $navmap->getIterator($firstres,$finishres,undef,1);
+            my $recursive = 1;
+            if ($scope eq 'nonrec') {
+                $recursive = 0;
+            }
+            $iterator = $navmap->getIterator($firstres,$finishres,undef,$recursive);
         } else {
             $iterator = $navmap->getIterator(undef,undef,undef,1);
         }