--- loncom/interface/lonpreferences.pm	2016/02/17 19:15:48	1.219
+++ loncom/interface/lonpreferences.pm	2019/04/24 01:44:30	1.228
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Preferences
 #
-# $Id: lonpreferences.pm,v 1.219 2016/02/17 19:15:48 raeburn Exp $
+# $Id: lonpreferences.pm,v 1.228 2019/04/24 01:44:30 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -160,11 +160,13 @@ sub texenginechanger {
     my $domain     = $env{'user.domain'};
     my %userenv = &Apache::lonnet::get('environment',['texengine']);
     my $texengine=$userenv{'texengine'};
+    if (lc($texengine) eq 'jsmath') {
+        $texengine = 'MathJax';
+    }
 
     my %mathchoices=('' => 'Default',
 		     'tth' => 'tth (TeX to HTML)',
 		     #'ttm' => 'TeX to MathML',
-		     'jsMath' => 'jsMath',
 		     'MathJax' => 'MathJax',
 		     'mimetex' => 'mimetex (Convert to Images)',
                      'raw' => 'Raw (Screen Reader)'
@@ -176,7 +178,6 @@ sub texenginechanger {
                'texengine',
                \%mathchoices);
     my $MathJax_start=&Apache::lontexconvert::MathJax_header();
-    my $jsMath_start=&Apache::lontexconvert::jsMath_header();
     my %lt=&Apache::lonlocal::texthash(
       'headline' => 'Change how math is displayed',
       'preftxt'  => 'Preferred method to display math',
@@ -184,26 +185,10 @@ sub texenginechanger {
       'exmpl'    => 'Examples',
       'mathjax'  => 'MathJax:',
       'mathjaxinfo' => 'MathJax provides rendered equations whose source code can be extracted in TeX and MathML formats by right clicking the equation.',
-      'jsmath'   => 'jsMath:',
       'tth'      => 'tth (TeX to HTML):',
       'mimetex'  => 'mimetex (Convert to Images):',
     );
 
-    my $jsMathWarning='<p>'
-                     .'<div class="LC_warning">'
-                     .&mt("It looks like you don't have the TeX math fonts installed.")
-                     .'</div>'
-                     .'<div>'
-                     .&mt('The jsMath example on this page may not look right without them. '
-                         .'The [_1]jsMath Home Page[_2] has information on how to download the '
-                         .'needed fonts. In the meantime, jsMath will do the best it can '
-                         .'with the fonts you have, but it may not be pretty and some equations '
-                         .'may not be rendered correctly.'
-                         ,'<a href="http://www.math.union.edu/locate/jsMath/" target="_blank">'
-                         ,'</a>')
-                     .'</div>'
-                     .'</p>';
-
     $r->print(<<ENDLSCREEN);
 <h2>$lt{'headline'}</h2>
 <form name="prefs" action="/adm/preferences" method="post">
@@ -226,18 +211,6 @@ $lt{'exmpl'}
 $lt{'mathjaxinfo'}
 </p>
 
-<h3>$lt{'jsmath'}</h3> 
-<p>
-$jsMath_start
-<script type="text/javascript" language="JavaScript">
-if (jsMath.nofonts == 1) {
-    document.writeln($jsMathWarning);
-}
-
-</script>
-<iframe src="/res/adm/pages/math_example.tex?inhibitmenu=yes&texengine=jsMath" width="400" height="150"></iframe>
-</p>
-
 <h3>$lt{'mimetex'}</h3>
 <p>
 <iframe src="/res/adm/pages/math_example.tex?inhibitmenu=yes&texengine=mimetex" width="400" height="150"></iframe>
@@ -248,9 +221,6 @@ if (jsMath.nofonts == 1) {
 <iframe src="/res/adm/pages/math_example.tex?inhibitmenu=yes&texengine=tth" width="400" height="150"></iframe>
 </p>
 ENDLSCREEN
-    if ($env{'environment.texengine'} ne 'jsMath') {
-	$r->print('<script type="text/javascript" language="JavaScript">jsMath.Process()</script>');
-    }
 }
 
 
@@ -261,6 +231,9 @@ sub verify_and_change_texengine {
 # Screenname
     my $newtexengine  = $env{'form.texengine'};
     $newtexengine=~s/[^\-\w]//g;
+    if (lc($newtexengine) eq 'jsmath') {
+        $newtexengine = 'MathJax';
+    }
     if ($newtexengine eq 'ttm') {
 	&Apache::lonnet::appenv({'browser.mathml' => 1});
     } else {
@@ -504,7 +477,6 @@ sub verify_and_change_rolespref {
 }
 
 
-
 ################################################################
 #         Anonymous Discussion Name Change Subroutines         #
 ################################################################
@@ -784,8 +756,10 @@ sub domcoordchanger {
     my $text=&mt('By default, the Domain Coordinator can enter your Authoring Space.');
     my $construction=&mt('Block access to Authoring Space');
     my $change=&mt('Save');
+    my $returnurl = &HTML::Entities::encode($env{'form.returnurl'},'"<>&\'');
     $r->print(<<ENDSCREEN);
 <form name="prefs" action="/adm/preferences" method="post">
+<input type="hidden" name="returnurl" value="$returnurl" />
 <input type="hidden" name="action" value="verify_and_change_domcoord" />
 $text<br />
 <label><input type="checkbox" name="construction"$constchecked />$construction</label><br />
@@ -810,7 +784,11 @@ sub verify_and_change_domcoord {
     }
     my $message=&Apache::lonhtmlcommon::confirm_success(&mt('Set [_1] to [_2]','<i>'.&mt('Block access to Authoring Space').'</i>','<tt>'.$status.'</tt>'));
     $message=&Apache::loncommon::confirmwrapper($message);
-    &print_main_menu($r,$message);
+    if ($env{'form.returnurl'}) {
+        &do_redirect($r,$env{'form.returnurl'},$message);
+    } else {
+        &print_main_menu($r,$message);
+    }
 }
 
 #################################################################
@@ -1285,7 +1263,7 @@ sub verify_and_change_colors {
 #            password handler subroutines            #
 ######################################################
 sub passwordchanger {
-    my ($r,$errormessage,$caller,$mailtoken) = @_;
+    my ($r,$errormessage,$caller,$mailtoken,$timelimit,$extrafields) = @_;
     # This function is a bit of a mess....
     # Passwords are encrypted using londes.js (DES encryption)
     $errormessage = ($errormessage || '');
@@ -1321,7 +1299,7 @@ sub passwordchanger {
                 return;
             }
             if (defined($data{time})) {
-                if (time - $data{'time'} < 7200) {
+                if (time - $data{'time'} < $timelimit) {
                     $user = $data{'username'};
                     $domain = $data{'domain'};
                     $currentpass = $data{'temppasswd'};
@@ -1384,7 +1362,7 @@ sub passwordchanger {
 	my $jsh=Apache::File->new($include."/londes.js");
 	$r->print(<$jsh>);
     }
-    $r->print(&jscript_send($caller));
+    $r->print(&jscript_send($caller,$extrafields));
     $r->print(<<ENDFORM);
 $errormessage
 
@@ -1393,15 +1371,15 @@ $errormessage
      ensure that unencrypted passwords will not be sent out by a
      crappy browser -->
 ENDFORM
-    $r->print(&server_form($logtoken,$caller,$mailtoken));
-    $r->print(&client_form($caller,\%hexkey,$currentpass,$domain));
+    $r->print(&server_form($logtoken,$caller,$mailtoken,$extrafields));
+    $r->print(&client_form($caller,\%hexkey,$currentpass,$domain,$extrafields));
 
     #
     return;
 }
 
 sub jscript_send {
-    my ($caller) = @_;
+    my ($caller,$extrafields) = @_;
     my $output = qq|
 <script type="text/javascript" language="JavaScript">
 
@@ -1423,14 +1401,20 @@ sub jscript_send {
             =getCrypted(this.document.client.elements.newpass_2.value);
 |;
     if ($caller eq 'reset_by_email') {
-        $output .= qq|
+        if ((ref($extrafields) eq 'HASH') && ($extrafields->{'username'})) {
+            $output .= qq|
         this.document.pserver.elements.uname.value =
                    this.document.client.elements.uname.value;
         this.document.pserver.elements.udom.value =
                    this.document.client.elements.udom.options[this.document.client.elements.udom.selectedIndex].value;
+|;
+        }
+        if ((ref($extrafields) eq 'HASH') && ($extrafields->{'email'})) {
+            $output .= qq| 
         this.document.pserver.elements.email.value =
                    this.document.client.elements.email.value;
 |;
+        }
     }
     $ output .= qq|
         this.document.pserver.submit();
@@ -1441,7 +1425,7 @@ sub jscript_send {
 }
 
 sub client_form {
-    my ($caller,$hexkey,$currentpass,$defdom) = @_;
+    my ($caller,$hexkey,$currentpass,$defdom,$extrafields) = @_;
     my %lt=&Apache::lonlocal::texthash(
                 'email' => 'E-mail Address',
                 'username' => 'Username',
@@ -1455,19 +1439,22 @@ sub client_form {
     my $output = '<form name="client" action="">'
                 .&Apache::lonhtmlcommon::start_pick_box();
     if ($caller eq 'reset_by_email') {
-        $output .= &Apache::lonhtmlcommon::row_title(
+        if ((ref($extrafields) eq 'HASH') && ($extrafields->{'email'})) {
+            $output .= &Apache::lonhtmlcommon::row_title(
                        '<label for="email">'.$lt{'email'}.'</label>')
-                  .'<input type="text" name="email" size="30" />'
-                  .&Apache::lonhtmlcommon::row_closure()
-                  .&Apache::lonhtmlcommon::row_title(
+                      .'<input type="text" name="email" size="30" autocapitalize="off" autocorrect="off" />'
+                      .&Apache::lonhtmlcommon::row_closure();
+        }
+        if ((ref($extrafields) eq 'HASH') && ($extrafields->{'username'})) {
+            $output .= &Apache::lonhtmlcommon::row_title(  
                        '<label for="uname">'.$lt{'username'}.'</label>')
-                  .'<input type="text" name="uname" size="20" />'
-                  .'<input type="hidden" name="currentpass" value="'.$currentpass.'" />'
-                  .&Apache::lonhtmlcommon::row_closure()
-                  .&Apache::lonhtmlcommon::row_title(
+                      .'<input type="text" name="uname" size="20" autocapitalize="off" autocorrect="off" />'
+                      .&Apache::lonhtmlcommon::row_closure()
+                      .&Apache::lonhtmlcommon::row_title(
                        '<label for="udom">'.$lt{'domain'}.'</label>')
-                  .&Apache::loncommon::select_dom_form($defdom,'udom')
-                  .&Apache::lonhtmlcommon::row_closure();
+                      .&Apache::loncommon::select_dom_form($defdom,'udom')
+                      .&Apache::lonhtmlcommon::row_closure();
+        }
     } else {
         $output .= &Apache::lonhtmlcommon::row_title(
                        '<label for="currentpass">'.$lt{'currentpass'}.'</label>')
@@ -1483,6 +1470,9 @@ sub client_form {
               .'<input type="password" name="newpass_2" size="20" />'
               .&Apache::lonhtmlcommon::row_closure(1)
               .&Apache::lonhtmlcommon::end_pick_box();
+    if ($caller eq 'reset_by_email') {
+        $output .= '<input type="hidden" name="currentpass" value="'.$currentpass.'" />';
+    }
     $output .= '<p><input type="button" value="'.$lt{'changepass'}.'" onclick="send();" /></p>'
               .qq|
 <input type="hidden" name="ukey_cpass"  value="$hexkey->{'ukey_cpass'}" />
@@ -1498,7 +1488,7 @@ sub client_form {
 }
 
 sub server_form {
-    my ($logtoken,$caller,$mailtoken) = @_;
+    my ($logtoken,$caller,$mailtoken,$extrafields) = @_;
     my $action = '/adm/preferences';
     if ($caller eq 'reset_by_email') {
         $action = '/adm/resetpw';
@@ -1509,15 +1499,22 @@ sub server_form {
 <input type="hidden" name="currentpass" value="" />
 <input type="hidden" name="newpass_1"   value="" />
 <input type="hidden" name="newpass_2"   value="" />
-    |;
+|;
     if ($caller eq 'reset_by_email') {
         $output .=  qq|
 <input type="hidden" name="token"   value="$mailtoken" />
+|;
+       if ((ref($extrafields) eq 'HASH') && ($extrafields->{'username'})) {
+           $output .=  qq|
 <input type="hidden" name="uname"   value="" />
 <input type="hidden" name="udom"   value="" />
+|;
+       }
+       if ((ref($extrafields) eq 'HASH') && ($extrafields->{'email'})) {
+           $output .=  qq|
 <input type="hidden" name="email"   value="" />
-
 |;
+       }
     }
     $output .= qq|
 <input type="hidden" name="action" value="verify_and_change_pass" />
@@ -1527,7 +1524,7 @@ sub server_form {
 }
 
 sub verify_and_change_password {
-    my ($r,$caller,$mailtoken) = @_;
+    my ($r,$caller,$mailtoken,$ended) = @_;
     my ($user,$domain,$homeserver);
     my ($blocked,$blocktext) =
         &Apache::loncommon::blocking_status('passwd');
@@ -1672,6 +1669,9 @@ ENDERROR
             $r->print($message.'<br />');
         } else {
             &print_main_menu($r, $message);
+            if (ref($ended)) {
+                $$ended = 1;
+            }
         }
     } else {
 	# error error: run in circles, scream and shout
@@ -1686,6 +1686,9 @@ ENDERROR
                 &mt("The password for user [_1] was not changed.",'<i>'.$user.'</i>').' '.&mt('Please make sure your old password was entered correctly.'),1);
             $message=&Apache::loncommon::confirmwrapper($message);
             &print_main_menu($r, $message);
+            if (ref($ended)) {
+                $$ended = 1;
+            }
         }
     }
     return;
@@ -1940,8 +1943,10 @@ sub author_space_settings {
             my $text=&mt('By default, CodeMirror an editor with advanced functionality for editing code is activated for authors.');
             my $cmoff=&mt('Deactivate CodeMirror. This can improve performance on slow computers and accessibility.');
             my $change=&mt('Save');
+            my $returnurl = &HTML::Entities::encode($env{'form.returnurl'},'"<>&\'');
             $r->print(<<ENDSCREEN);
         <form name="prefs" action="/adm/preferences" method="post">
+        <input type="hidden" name="returnurl" value="$returnurl" />
         <input type="hidden" name="action" value="change_authoring_settings" />
         $text<br />
         <label><input type="checkbox" name="cmoff"$constchecked />$cmoff</label><br />
@@ -1969,7 +1974,11 @@ sub change_authoring_settings {
             }
             my $message=&Apache::lonhtmlcommon::confirm_success(&mt('Set [_1] to [_2]','<i>'.&mt('Deactivate CodeMirror in Authoring Space').'</i>','<tt>'.$status.'</tt>'));
             $message=&Apache::loncommon::confirmwrapper($message);
-            &print_main_menu($r,$message);
+            if ($env{'form.returnurl'}) {
+                &do_redirect($r,$env{'form.returnurl'},$message);
+            } else {
+                &print_main_menu($r,$message);
+            }
     }
 }
 
@@ -2215,13 +2224,13 @@ push(@{ $menu[4]->{items} }, {
 
     }
 
-    my %author_roles = &Apache::lonnet::get_my_roles($user,$domain,'userroles','',['au','ca','aa']);
-    if (keys(%author_roles) > 0) {
+    my %author_coauthor_roles = &Apache::lonnet::get_my_roles($user,$domain,'userroles','',['au','ca','aa']);
+    if (keys(%author_coauthor_roles) > 0) {
         push(@{ $menu[4]->{items} }, {
             linktext => 'Authoring Space Configuration',
             url => '/adm/preferences?action=authorsettings',
             permission => 'F',
-            icon => 'course_ini.png',
+            icon => 'codemirror.png',
             linktitle => 'Settings for your authoring space.',
         });
     }
@@ -2263,10 +2272,22 @@ sub handler {
                                    ['action','wysiwyg','returnurl','refpage']);
     #
     Apache::lonhtmlcommon::clear_breadcrumbs();
-    my ($brlink,$brtxt,$brhelp);
+    my ($brlink,$brtxt,$brhelp,$ended);
     if (($env{'form.action'} eq 'changerolespref') && ($env{'form.returnurl'} eq '/adm/roles')) {
         $brlink ='/adm/roles';
         $brtxt = 'User Roles';
+    } elsif ((($env{'form.action'} eq 'changedomcoord') ||
+              ($env{'form.action'} eq 'authorsettings')) &&
+             (($env{'form.returnurl'} =~ m{^/(priv/|res($|/))}) ||
+              ($env{'form.returnurl'} eq '/adm/createuser'))) {
+        $brlink = $env{'form.returnurl'};
+        if ($env{'form.returnurl'} eq '/adm/createuser') {
+            $brtxt = 'User Management';
+        } elsif ($env{'form.returnurl'} =~ m{^/res($\/)}) {
+            $brtxt = 'Browse published resources';
+        } else {
+            $brtxt = 'Authoring Space';
+        }
     } else {
         $brlink ='/adm/preferences';
         $brtxt = 'Set User Preferences';
@@ -2277,15 +2298,17 @@ sub handler {
           text => $brtxt,
           help => $brhelp,});
     if(!exists $env{'form.action'}) {
-	    &print_main_menu($r);
+	&print_main_menu($r);
+        $ended = 1;
     }elsif($env{'form.action'} eq 'changepass'){
         &passwordchanger($r);
     }elsif($env{'form.action'} eq 'verify_and_change_pass'){
-        &verify_and_change_password($r,'preferences');
+        &verify_and_change_password($r,'preferences','',\$ended);
     }elsif($env{'form.action'} eq 'changescreenname'){
         &screennamechanger($r);
     }elsif($env{'form.action'} eq 'verify_and_change_screenname'){
         &verify_and_change_screenname($r);
+        $ended = 1;
     }elsif($env{'form.action'} eq 'changemsgforward'){
         &msgforwardchanger($r);
     }elsif($env{'form.action'} eq 'verify_and_change_msgforward'){
@@ -2294,38 +2317,47 @@ sub handler {
         &colorschanger($r);
     }elsif($env{'form.action'} eq 'verify_and_change_colors'){
         &verify_and_change_colors($r);
+        $ended = 1;
     }elsif($env{'form.action'} eq 'changelanguages'){
         &languagechanger($r);
     }elsif($env{'form.action'} eq 'verify_and_change_languages'){
         &verify_and_change_languages($r);
+        $ended = 1;
     }elsif($env{'form.action'} eq 'changewysiwyg'){
         &wysiwygchanger($r);
     }elsif($env{'form.action'} eq 'set_wysiwyg'){
         &verify_and_change_wysiwyg($r);
+        $ended = 1;
     }elsif($env{'form.action'} eq 'changediscussions'){
         &discussionchanger($r);
     }elsif($env{'form.action'} eq 'verify_and_change_discussion'){
         &verify_and_change_discussion($r);
+        $ended = 1;
     }elsif($env{'form.action'} eq 'changerolespref'){
         &rolesprefchanger($r);
     }elsif($env{'form.action'} eq 'verify_and_change_rolespref'){
         &verify_and_change_rolespref($r);
+        $ended = 1;
     }elsif($env{'form.action'} eq 'changetexenginepref'){
         &texenginechanger($r);
     }elsif($env{'form.action'} eq 'verify_and_change_texengine'){
         &verify_and_change_texengine($r);
+        $ended = 1;
     }elsif($env{'form.action'} eq 'changeicons'){
         &iconchanger($r);
     }elsif($env{'form.action'} eq 'verify_and_change_icons'){
         &verify_and_change_icons($r);
+        $ended = 1;
     }elsif($env{'form.action'} eq 'changeclicker'){
         &clickerchanger($r);
     }elsif($env{'form.action'} eq 'verify_and_change_clicker'){
         &verify_and_change_clicker($r);
+        $ended = 1;
     }elsif($env{'form.action'} eq 'changedomcoord'){
         &domcoordchanger($r);
     }elsif($env{'form.action'} eq 'verify_and_change_domcoord'){
         &verify_and_change_domcoord($r);
+        $ended = 1;
     }elsif($env{'form.action'} eq 'lockwarning'){
         &lockwarning($r);
     }elsif($env{'form.action'} eq 'verify_and_change_locks'){
@@ -2334,26 +2366,29 @@ sub handler {
         &coursedisplaychanger($r);
     }elsif($env{'form.action'} eq 'verify_and_change_coursepage'){
         &verify_and_change_coursepage($r);
+        $ended = 1;
     }elsif($env{'form.action'} eq 'authorsettings'){
         &author_space_settings($r);
     }elsif($env{'form.action'} eq 'change_authoring_settings'){
         &change_authoring_settings($r);
+        $ended = 1;
     }elsif($env{'form.action'} eq 'debugtoggle'){
         if (&can_toggle_debug()) {
             &toggle_debug();
         }
 	&print_main_menu($r);
+        $ended = 1;
     } elsif ($env{'form.action'} eq 'changelockednames') {
         &lockednameschanger($r);
     } elsif ($env{'form.action'} eq 'verify_and_change_lockednames') {
         &verify_and_change_lockednames($r);
+        $ended = 1;
     }
 
     # Properly end the HTML page of all preference pages
     # started in each sub routine
     # Exception: print_main_menu has its own end_page call
-    unless (!exists $env{'form.action'} ||
-            $env{'form.action'} eq 'debugtoggle') {
+    unless ($ended) {
         $r->print(&Apache::loncommon::end_page());
     }
 
@@ -2426,5 +2461,16 @@ sub updateable_userinfo {
     return %updateable;
 }
 
+sub do_redirect {
+    my ($r,$url,$msg) = @_;
+    $r->print(
+        &Apache::loncommon::start_page('Switching Server ...',undef,
+                                       {'redirect'       => [0.5,$url]}).
+        '<div style="padding:0;clear:both;margin:0;border:0"></div>'."\n".
+        "$msg\n".
+        &Apache::loncommon::end_page());
+    return;
+}
+
 1;
 __END__