--- loncom/interface/lonwishlist.pm	2010/08/10 14:30:20	1.1
+++ loncom/interface/lonwishlist.pm	2014/01/29 16:25:44	1.19
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
-# Routines to control the wishlist
+# Utility-routines for wishlist
 #
-# $Id: lonwishlist.pm,v 1.1 2010/08/10 14:30:20 wenzelju Exp $
+# $Id: lonwishlist.pm,v 1.19 2014/01/29 16:25:44 bisitz Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -26,16 +26,31 @@
 # http://www.lon-capa.org/
 #
 
+=pod
 
+=head1 NAME
+
+Apache::lonwishlist - Wishlist-Module
+  
+=head1 SYNOPSIS
+
+The wishlist offers a possibility to store links to resources from the resource-pool and external websites in a hierarchical list.
+It is only available for user with access to the resource-pool. The list can be structured by folders.
+
+The wishlist-module uses the CPAN-module "Tree" for easily handling the directory-structure of the wishlist. Each node in the tree has an index to be referenced by.
+
+=back
+
+=cut
 
 package Apache::lonwishlist;
 
 use strict;
-use Apache::Constants qw(:common);
 use Apache::lonnet;
 use Apache::loncommon();
 use Apache::lonhtmlcommon;
 use Apache::lonlocal;
+use LONCAPA qw(:DEFAULT :match);
 use Tree;
 
 
@@ -47,20 +62,48 @@ my %TreeToHash;
 my @allFolders;
 my @allNodes;
 my $indentConst = 20;
+my $foldersOption;
+
+=pod
+
+=head2 Routines for getting and putting the wishlist data from and accordingly to users data.
+
+=over 4
+
+=item * &getWishlist()
+
+     Get the wishlist-data via lonnet::getkeys() and lonnet::get() and returns the got data in a hash.
+
+
+=item * &putWishlist(wishlist)
+
+     Parameter is a reference to a hash. Puts the wishlist-data contained in the given hash via lonnet::put() to user-data.
+
+
+=item * &deleteWishlist()
+
+     Deletes all entries from the user-data for wishlist. Do this before putting in new data.
+
+
+=back
+
+=cut
 
 
 # Read wishlist from user-data
 sub getWishlist {
-    my @wishlistkeys = &Apache::lonnet::getkeys('wishlist');
-    my %wishlist = &Apache::lonnet::get('wishlist',\@wishlistkeys);
-   foreach my $i (%wishlist) {
+    my @keys = &Apache::lonnet::getkeys('wishlist');
+    my %wishlist = &Apache::lonnet::get('wishlist',\@keys);
+    foreach my $i ( keys %wishlist) {
         #File not found. This appears at the first time using the wishlist
         #Create file and put 'root' into it
        if ($i =~m/^error:No such file/) {
            &Apache::lonnet::logthis($i.'! Create file by putting in the "root" of the directory tree.');
            &Apache::lonnet::put('wishlist', {'root' => ''});
-           @wishlistkeys = &Apache::lonnet::getkeys('wishlist');
-           %wishlist = &Apache::lonnet::get('wishlist',\@wishlistkeys);
+           my $options = '<option value="" selected="selected">('.&mt('Top level').')</option>';
+           &Apache::lonnet::put('wishlist', {'folders' => $options});
+           @keys = &Apache::lonnet::getkeys('wishlist');
+           %wishlist = &Apache::lonnet::get('wishlist',\@keys);
        }
        elsif ($i =~ /^(con_lost|error|no_such_host)/i) {
            &Apache::lonnet::logthis('ERROR while attempting to get wishlist: '.$i);
@@ -68,7 +111,8 @@ sub getWishlist {
        }
     }
 
-    #If hash is empty, put 'root' into it, so we got a node to start the tree
+    # if we got no keys in hash returned by get(), return error.
+    # wishlist will not be loaded, instead the user will be asked to try again later
     if ((keys %wishlist) == 0) {
         &Apache::lonnet::logthis('ERROR while attempting to get wishlist: no keys retrieved!');
         return 'error';
@@ -92,9 +136,64 @@ sub deleteWishlist {
 }
 
 
+=pod
+
+=head2 Routines for changing the directory struture of the wishlist.
+
+=over 4
+
+=item * &newEntry(title, path, note)
+
+     Creates a new entry in the wishlist containing the given informations. Additionally saves the date of creation in the entry.  
+
+
+=item * &deleteEntries(marked)
+
+     Parameter is a reference to an array containing the indices of all nodes that should be removed from the tree. 
+
+
+=item * &sortEntries(indexNode, at)
+
+     Changes the position of a node given by indexNode within its siblings. New position is given by at.
+
+
+=item * &moveEntries(indexNodesToMove, indexParent)
+
+     Parameter is a reference to an array containing the indices of all nodes that should be moved. indexParent specifies the node that will become the new Parent for these nodes. 
+
+
+=item * &setNewTitle(nodeindex, newTitle)
+
+     Sets the title for the node given by nodeindex to newTitle.
+
+
+=item * &setNewPath(nodeindex, newPath)
+
+     Sets the path for the node given by nodeindex to newPath.
+
+
+=item * &setNewNote(nodeindex, newNote)
+
+     Sets the note for the node given by nodeindex to newNote.     
+
+
+=item * &saveChanges()
+
+     Prepares the wishlist-hash to save it via &putWishlist(wishlist).   
+
+
+=back
+
+=cut
+
+
 # Create a new entry
 sub newEntry() {
-    my ($title, $path, $note) = @_;
+    my ($rootgiven, $title, $path, $note) = @_;
+
+    $root = $rootgiven;
+    @childrenRt = $root->children();
+
     my $date = gmtime();
     # Create Entry-Object
     my $entry = Entry->new(title => $title, path => $path, note => $note, date => $date);
@@ -105,52 +204,69 @@ sub newEntry() {
     if ($folderIndex ne '') {
         @allFolders = ();
         &getFoldersToArray(\@childrenRt);
-        my $folderToInsertOn = &Tree::getNodeByIndex($folderIndex,\@allFolders);
+        my $folderToInsertOn = &Apache::Tree::getNodeByIndex($folderIndex,\@allFolders);
         $folderToInsertOn->add_child($tree);
     }
     else {
         $root->add_child($tree);
     }
-    &saveChanges();
+    return &saveChanges();
 }
 
 
 # Delete entries
 sub deleteEntries {
+    my $rootgiven = shift;
     my $marked = shift;
-    &getNodesToArray(\@childrenRt);
 
+    $root = $rootgiven;
+    @childrenRt = $root->children();
+
+    &getNodesToArray(\@childrenRt);
     foreach my $m (@$marked) {
-        my $found = &Tree::getNodeByIndex($m, \@allNodes);
-        &Tree::removeNode($found);
+        my $found = &Apache::Tree::getNodeByIndex($m, \@allNodes);
+        # be sure, that entry exists (may have been deleted before, e.g. in an other browsertab)
+        if (defined $found) {
+            &Apache::Tree::removeNode($found);
+        }
     }
     @allNodes = ();
-    &saveChanges();
+    return &saveChanges();
 }
 
 
 # Sort entries
 sub sortEntries {
+    my $rootgiven = shift;
     my $indexNode = shift;
     my $at = shift;
+
+    $root = $rootgiven;
+    @childrenRt = $root->children();
     
     &getNodesToArray(\@childrenRt);
-    my $foundNode = &Tree::getNodeByIndex($indexNode, \@allNodes);
+    my $foundNode = &Apache::Tree::getNodeByIndex($indexNode, \@allNodes);
 
-    &Tree::moveNode($foundNode,$at,undef);
+    &Apache::Tree::moveNode($foundNode,$at,undef);
     @allNodes = ();
+    return &saveChanges();
 }
 
 
 # Move entries
 sub moveEntries {
+    my $rootgiven = shift;
     my $indexNodesToMove = shift;
     my $indexParent = shift;
     my @nodesToMove = ();
 
+    $root = $rootgiven;
+    @childrenRt = $root->children();
+
+    # get all nodes that should be moved
     &getNodesToArray(\@childrenRt);
     foreach my $index (@$indexNodesToMove) {
-        my $foundNode = &Tree::getNodeByIndex($index, \@allNodes);
+        my $foundNode = &Apache::Tree::getNodeByIndex($index, \@allNodes);
         push(@nodesToMove, $foundNode);
     }
 
@@ -166,55 +282,113 @@ sub moveEntries {
         }
         if (!$parentIsIn) {
             if ($indexParent ne "root") {
-                $foundParent = &Tree::getNodeByIndex($indexParent, \@allNodes);
-                &Tree::moveNode($node,undef,$foundParent);
+                $foundParent = &Apache::Tree::getNodeByIndex($indexParent, \@allNodes);
+                &Apache::Tree::moveNode($node,undef,$foundParent);
             }
             else {
-                &Tree::moveNode($node,undef,$root);
+                &Apache::Tree::moveNode($node,undef,$root);
             }
         }
     }
     @allNodes = ();
+    return &saveChanges();
 }
 
 
 # Set a new title for an entry
 sub setNewTitle {
-    my ($nodeindex, $newTitle) = @_;
+    my ($rootgiven, $nodeindex, $newTitle) = @_;
+
+    $root = $rootgiven;
+    @childrenRt = $root->children();
+
     &getNodesToArray(\@childrenRt);
-    my $found = &Tree::getNodeByIndex($nodeindex, \@allNodes);
+    my $found = &Apache::Tree::getNodeByIndex($nodeindex, \@allNodes);
     $found->value()->title($newTitle); 
     @allNodes = ();
+    return &saveChanges();
+}
+
+
+# Set a new path for an entry
+sub setNewPath {
+    my ($rootgiven, $nodeindex, $newPath) = @_;
+
+    $root = $rootgiven;
+    @childrenRt = $root->children();
+
+    &getNodesToArray(\@childrenRt);
+    my $found = &Apache::Tree::getNodeByIndex($nodeindex, \@allNodes);
+    if ($found->value()->path()) {
+        $found->value()->path($newPath); 
+        return &saveChanges();
+    }
+    @allNodes = ();
+    return 0;
 }
 
 
 # Set a new note for an entry
 sub setNewNote {
-    my ($nodeindex, $newNote) = @_;
+    my ($rootgiven, $nodeindex, $newNote) = @_;
+
+    $root = $rootgiven;
+    @childrenRt = $root->children();
+
     &getNodesToArray(\@childrenRt);
-    my $found = &Tree::getNodeByIndex($nodeindex, \@allNodes);
+    my $found = &Apache::Tree::getNodeByIndex($nodeindex, \@allNodes);
     $found->value()->note($newNote); 
     @allNodes = ();
+    return &saveChanges();
 }
 
 
 # Save all changes
 sub saveChanges {
     @childrenRt = $root->children();
-    &Tree::TreeIndex(\@childrenRt);
-    &Tree::setCountZero();
-    &Tree::RootToHash(\@childrenRt);
-    &Tree::TreeToHash(\@childrenRt);
+    &Apache::Tree::TreeIndex(\@childrenRt);
+    &Apache::Tree::setCountZero();
+    &Apache::Tree::RootToHash(\@childrenRt);
+    &Apache::Tree::TreeToHash(\@childrenRt);
     &deleteWishlist();
     &putWishlist(\%TreeToHash);
+    return $root;
 
 }
 
 
+=pod
+
+=head2 Routines for handling the directory structure
+
+=over 4
+
+=item * &getFoldersForOption(nodes)
+
+     Return the titles for all exiting folders in an option-tag, used to offer the users a possibility to create a new link or folder in an existing folder.
+     Recursive call starting with all children of the root of the tree (parameter nodes is reference to an array containing the nodes of the current level). 
+
+
+=item * &getFoldersToArray(children)
+
+     Puts all nodes that represent folders in the wishlist into an array. 
+     Recursive call starting with all children of the root of the tree (parameter nodes is reference to an array containing the nodes of the current level).     
+
+
+=item * &getNodesToArray(children)
+
+     Puts all existing nodes into an array (apart from the root node, because this one does not represent an entry in the wishlist).
+     Recursive call starting with all children of the root of the tree (parameter nodes is reference to an array containing the nodes of the current level).     
+ 
+
+=back
+
+=cut
+
+
 # Return the names for all exiting folders in option-tags, so
 # a new link or a new folder can be created in an existing folder
 my $indent = 0;
-my $foldersOption;
 sub getFoldersForOption {
     my $nodes = shift;
 
@@ -235,22 +409,6 @@ sub getFoldersForOption {
 }
 
 
-sub getfoldersOption {
-   if (&getWishlist ne 'error') {
-       %TreeHash = &getWishlist();
-       $root = &Tree::HashToTree();
-       @childrenRt = $root->children();
-       &getFoldersForOption(\@childrenRt);
-       my $options = '<option value="" selected="selected"></option>'.$foldersOption;
-       $foldersOption = '';
-       return $options;
-   }
-   else {
-       return '';
-   }
-}
-
-
 # Put all folder-nodes to an array
 sub getFoldersToArray {
     my $children = shift;
@@ -279,10 +437,83 @@ sub getNodesToArray {
 }
 
 
+=pod
+
+=head2 Routines for the user-interface of the wishlist
+
+=over 4
+
+=item * &JSforWishlist()
+
+     Returns JavaScript-functions needed for wishlist actions like open and close folders.
+
+
+=item * &wishlistView(nodes)
+
+     Returns the table-HTML-markup for the wishlist in mode "view".
+     Recursive call starting with all children of the root of the tree (parameter nodes is reference to an array containing the nodes of the current level).     
+
+
+=item * &wishlistEdit(nodes)
+
+     Returns the table-HTML-markup for the wishlist in mode "edit".
+     Recursive call starting with all children of the root of the tree (parameter nodes is reference to an array containing the nodes of the current level).     
+
+
+=item * &wishlistMove(nodes, marked)
+
+     Returns the table-HTML-markup for the wishlist in mode "move". Highlights all entry "selected to move" contained in marked (reference to array).
+     Recursive call starting with all children of the root of the tree (parameter nodes is reference to an array containing the nodes of the current level).     
+
+
+=item * &wishlistImport(nodes, numskipped)
+
+     Returns the table-HTML-markup for the wishlist in mode "import".
+     Recursive call starting with all children of the root of the tree (parameter nodes is reference to an array containing the nodes of the current level).
+     Side effect: increments the scalar ref: numskipped with a count of items in 
+     Stored Links unavailable for selection, (e.g., now marked obsolete or
+     inaccessible in Community context).
+
+=item * &makePage(mode, marked)
+
+     Returns the HTML-markup for the whole wishlist depending on mode. If mode is "move" we need the marked entries to be highlighted a "selected to move". 
+     Calls &wishlistView(nodes), &wishlistEdit(nodes) or &wishlistMove(nodes, marked).
+ 
+
+=item * &makePopUpNewLink(title, path)
+
+     Returns the HTML-markup for the pop-up-window 'Add Link'. If this is called up from a browsed resource, the input-fields titel and path are pre-filled with the resources' meta-data-title and it's path. 
+
+
+=item * &makePopUpNewFolder()
+
+     Returns the HTML-markup for the pop-up-window 'Add Folder'.
+
+
+=item * &makePageSet()
+
+     Returns the HTML-Markup for the page shown when a link was set by using the icon when viewing a resource.
+
+
+=item * &makePageImport()
+
+     Returns the HTML-Markup for the page shown when links should be imported into courses.
+ 
+
+=item * &makeErrorPage ()
+
+     Returns the HTML-Markup for an error-page shown if the wishlist could not be loaded.
+ 
+
+=back
+
+=cut
+
+
 # Return a script-tag containing Javascript-function
 # needed for wishlist actions like 'new link' ect.
 sub JSforWishlist {
-    my $startPagePopup = &Apache::loncommon::start_page('Wishlist',undef,
+    my $startPagePopup = &Apache::loncommon::start_page('Stored Links',undef,
                                                             {'only_body' => 1,
                                                              'js_ready'  => 1,
                                                              'bgcolor'   => '#FFFFFF',});
@@ -292,108 +523,34 @@ sub JSforWishlist {
     &getFoldersToArray(\@childrenRt);
     &getFoldersForOption(\@childrenRt);
 
-    # texthash
-    my %lt = &Apache::lonlocal::texthash(
-                 'nl' => 'New Link',
-                 'nf' => 'New Folder',
-                 'lt' => 'Link Title',
-                 'ft' => 'Folder Title',
-                 'pa' => 'Path',
-                 'nt' => 'Note',
-                 'si' => 'Save in',
-                 'cl' => 'Cancel');
-
-
-    my $inPageNewLink = '<h1>'.$lt{'nl'}.'</h1>'.
-                        '<form method="post" name="newlink" action="/adm/wishlist" target="wishlist" '.
-                        'onsubmit="return newlinksubmit();" >'.
-                        &Apache::lonhtmlcommon::start_pick_box().
-                        &Apache::lonhtmlcommon::row_title($lt{'lt'}).
-                        '<input type="text" name="title" size="45" value="" />'.
-                        &Apache::lonhtmlcommon::row_closure().
-                        &Apache::lonhtmlcommon::row_title($lt{'pa'}).
-                        '<input type="text" name="path" size="45" value="" />'.
-                        &Apache::lonhtmlcommon::row_closure().
-                        &Apache::lonhtmlcommon::row_title($lt{'nt'}).
-                        '<textarea name="note" rows="3" cols="35" style="width:100%"></textarea>'.
-                        &Apache::lonhtmlcommon::row_closure(1).
-                        &Apache::lonhtmlcommon::end_pick_box().
-                        '<br/><br/>'.
-                        '<input type="submit" value="'.$lt{'si'}.'" />'.
-                        '<select name="folders">'.
-                        '<option value="" selected="selected"></option>'.
-                        $foldersOption.
-                        '</select>'.
-                        '<input type="button" value="'.$lt{'cl'}.'" onclick="javascript:window.close();" />'.
-                        '</form>';
-    
-    my $inPageNewFolder = '<h1>'.$lt{'nf'}.'</h1>'.
-                          '<form method="post" name="newfolder" action="/adm/wishlist" target="wishlist" '.
-                          'onsubmit="return newfoldersubmit();" >'.
-                          &Apache::lonhtmlcommon::start_pick_box().
-                          &Apache::lonhtmlcommon::row_title($lt{'ft'}).
-                          '<input type="text" name="title" size="45" value="" /><br />'.
-                          &Apache::lonhtmlcommon::row_closure().
-                          &Apache::lonhtmlcommon::row_title($lt{'nt'}).
-                          '<textarea name="note" rows="3" cols="35" style="width:100%"></textarea><br />'.
-                          &Apache::lonhtmlcommon::row_closure(1).
-                          &Apache::lonhtmlcommon::end_pick_box().
-                          '<br/><br/>'.
-                          '<input type="submit" value="'.$lt{'si'}.'" />'.
-                          '<select name="folders">'.
-                          '<option value="" selected="selected"></option>'.
-                          $foldersOption.
-                          '</select>'.
-                          '<input type="button" value="'.$lt{'cl'}.'" onclick="javascript:window.close();" />'.
-                          '</form>';
-
-    # Remove all \n for inserting on javascript document.write
-    $inPageNewLink =~ s/\n//g;
-    $inPageNewFolder =~ s/\n//g;
-
+    # it is checked, wether a path links to a LON-CAPA-resource or an external website. links to course-contents are not allowed
+    # because they probably will return a kind of 'no access' (unless the user is already in the course, the path links to).
+    # also importing these kind of links into a course does not make much sense.
+    # to find out if a path (not starting with /res/...) links to course-contents, the same filter as in lonwrapper is used,
+    # that means that it is checked wether a path contains .problem, .quiz, .exam etc.
+    # this is good for most cases but crashes as soon as a real external website contains one of this pattern in its URL.
+    # so maybe there's a better way to find out wether a given URL belongs to a LON-CAPA-server or not ...?
+    my $warningLinkNotAllowed1 =
+        &mt('You can only insert links to LON-CAPA resources from the resource-pool'.
+            ' or to external websites.'.
+            ' Paths to LON-CAPA resources must be of the form /res/domain/user/...'.
+            ' Paths to external websites must contain the network protocol, e.g. http://...');
+    my $warningLinkNotAllowed2 = &mt('The following link is not allowed:').' ';
     my $warningLink = &mt('You must insert a title and a path!');
     my $warningFolder = &mt('You must insert a title!');
     my $warningDelete = &mt('Are you sure you want to delete the selected entries? Deleting a folder also deletes all entries within this folder!');
-    my $warningSave = &mt('You have unsaved changes. You can either save these changes now by clicking "ok" or click "cancel" if you do not want to save your changes.');
-    my $warningMove = &mt('You must select a destination folder!');
+    my $warningSave = &mt('You have unsaved changes. You can either save these changes now by clicking "OK" or click "Cancel" if you do not want to save your changes.');
+    my $warningMoveS = &mt('You must select at minimum one entry to move!');
+    my $warningMoveD = &mt('You must select a destination folder!');
     $foldersOption = '';
 
     my $js = &Apache::lonhtmlcommon::scripttag(<<JAVASCRIPT);
     function newLink() {
-        newlinkWin=window.open('','newlinkWin','width=580,height=320,scrollbars=yes');
-        newlinkWin.document.write('$startPagePopup' 
-                              +'<script type="text\/javascript">'
-                              +'function newlinksubmit(){'
-                              +'var path = document.getElementsByName("path")[0].value;'
-                              +'var title = document.getElementsByName("title")[0].value;'
-                              +'if (!path || !title) {'
-                              +'alert("$warningLink");'
-                              +'return false;}'
-                              +'else {'
-                              +'window.close();'
-                              +'return true;}}'
-                              +'<\/scr'+'ipt>'
-                              +'$inPageNewLink'
-                              +'$endPagePopup');
-        newlinkWin.document.close();
+        newlinkWin=window.open('/adm/wishlist?mode=newLink','newlinkWin','width=580,height=350, scrollbars=yes');
     }
 
     function newFolder() {
-        newfolderWin=window.open('','newfolderWin','width=580,height=270, scrollbars=yes');
-        newfolderWin.document.write('$startPagePopup' 
-                              +'<script type="text\/javascript">'
-                              +'function newfoldersubmit(){'
-                              +'var title = document.getElementsByName("title")[0].value;'
-                              +'if (!title) {'
-                              +'alert("$warningFolder");'
-                              +'return false;}'
-                              +'else {'
-                              +'window.close();'
-                              +'return true;}}'
-                              +'<\/scr'+'ipt>'
-                              +'$inPageNewFolder'
-                              +'$endPagePopup');
-        newfolderWin.document.close();
+        newfolderWin=window.open('/adm/wishlist?mode=newFolder','newfolderWin','width=580,height=270, scrollbars=yes');
     }
 
     function setFormAction(action,mode) {
@@ -408,12 +565,21 @@ sub JSforWishlist {
             if (d) {
                 if (!confirm('$warningSave')) {
                     setAction('noSave');
+                    r = true;
+                }
+                else {
+                    r = linksOK();
                 }
             }
-            r = true;
+        }
+        else if (action == 'saveOK') {
+            r = linksOK();
+        }
+        else if (action == 'move') {
+            r = selectDestinationFolder(mode);
         }
         document.getElementsByName('list')[0].setAttribute("action", "/adm/wishlist?mode="+mode); 
-        if(r){
+        if (r) {
             document.getElementsByName('list')[0].submit(); 
         }
     }
@@ -432,6 +598,15 @@ sub JSforWishlist {
                 return true;
             }
         }
+        var newpath = document.getElementsByName('newpath');
+        var i = 0;
+        for (i=0;i<newpath.length;i++) {
+            var newp = newpath[i].value;
+            var oldp = newpath[i].alt;
+            if (newp != oldp) {
+                return true;
+            }
+        }
         var newnote = document.getElementsByName('newnote');
         var i = 0;
         for (i=0;i<newnote.length;i++) {
@@ -444,6 +619,25 @@ sub JSforWishlist {
         return false;
     }
 
+    function linksOK() {
+        var newpath = document.getElementsByName('newpath');
+        var i = 0;
+        for (i=0;i<newpath.length;i++) {
+            var path = newpath[i].value;
+            var linkOK = (path.match(/^http:\\/\\//) || path.match(/^https:\\/\\//))
+                         && !(path.match(/\\.problem/) || path.match(/\\.exam/)
+                         || path.match(/\\.quiz/) || path.match(/\\.assess/)
+                         || path.match(/\\.survey/) || path.match(/\\.form/)
+                         || path.match(/\\.library/) || path.match(/\\.page/)
+                         || path.match(/\\.sequence/));
+            if (!path.match(/^(\\/res\\/)/) && !linkOK) {
+                alert("$warningLinkNotAllowed1 $warningLinkNotAllowed2"+path);
+                return false;
+            }
+         }
+        return true;
+    }
+
     function onLoadAction(mode) {
         window.name = 'wishlist';
         if (mode == "edit") {
@@ -618,7 +812,9 @@ sub JSforWishlist {
 
     function setChecked(row,checked) {
         var childCHECK = document.getElementById(row.id.replace('row','check'));
-        childCHECK.checked = checked;
+        if (!childCHECK.disabled) {
+            childCHECK.checked = checked;
+        }
     }
 
     function getPreviousFolderRows(row) {
@@ -786,7 +982,7 @@ sub JSforWishlist {
         }
     }
 
-    function selectDestinationFolder() {
+    function selectDestinationFolder(mode) {
         var mark = document.getElementsByName('mark');
         var i = 0;
         for (i = 0; i < mark.length; i++) {
@@ -795,18 +991,114 @@ sub JSforWishlist {
                 return true;
             }
         }
-        alert('$warningMove');
+        if (mode == 'move') {
+            alert('$warningMoveS');
+        }
+        else {
+            alert('$warningMoveD');
+        }
         return false;
     }
 
+    function preview(url) {
+       var newWin;
+       if (!(url.match(/^http:\\/\\//) || url.match(/^https:\\/\\//))) {
+           newWin = window.open(url+'?inhibitmenu=yes','preview','width=560,height=350,scrollbars=yes');
+       }
+       else {
+           newWin = window.open(url,'preview','width=560,height=350,scrollbars=yes');
+       }
+       newWin.focus();
+    }
+
+    function checkAll() {
+        var checkboxes = document.getElementsByName('check');
+        for (var i = 0; i < checkboxes.length; i++) {
+            if (!checkboxes[i].disabled) {
+                checkboxes[i].checked = "checked";
+            }
+        }
+    }
+
+    function uncheckAll() {
+        var checkboxes = document.getElementsByName('check');
+        for (var i = 0; i < checkboxes.length; i++) {
+            if (!checkboxes[i].disabled) {
+                checkboxes[i].checked = "";
+            }
+        }
+    }
+
 JAVASCRIPT
    return $js;
 }
 
+sub JSforImport{
+    my $rat = shift;
+
+    my $js;
+    if ($rat eq 'simple' || $rat eq '') {
+        $js = &Apache::lonhtmlcommon::scripttag(<<JAVASCRIPT);
+        function finish_import() {
+            opener.document.forms.simpleedit.importdetail.value='';
+            for (var num = 0; num < document.forms.groupsort.fnum.value; num++) {
+                if (eval("document.forms.groupsort.check"+num+".checked") && eval("document.forms.groupsort.filelink"+num+".value") != '') {
+                    opener.document.forms.simpleedit.importdetail.value+='&'+
+                    eval("document.forms.groupsort.title"+num+".value")+'='+
+                    eval("document.forms.groupsort.filelink"+num+".value")+'='+
+                    eval("document.forms.groupsort.id"+num+".value");
+                }
+            }
+            opener.document.forms.simpleedit.submit();
+            self.close();
+        }
+JAVASCRIPT
+    }
+    else {
+        $js = &Apache::lonhtmlcommon::scripttag(<<JAVASCRIPT);
+        function finish_import() {
+            var linkflag=false;
+            for (var num=0; num<document.forms.groupsort.fnum.value; num++) {
+                if (eval("document.forms.groupsort.check"+num+".checked") && eval("document.forms.groupsort.filelink"+num+".value") != '') {
+                    insertRowInLastRow();
+                    placeResourceInLastRow(
+                        eval("document.forms.groupsort.title"+num+".value"),
+                        eval("document.forms.groupsort.filelink"+num+".value"),
+                        eval("document.forms.groupsort.id"+num+".value"),
+                        linkflag
+                        );
+                    linkflag=true;
+                }
+            }
+            opener.editmode=0;
+            opener.notclear=0;
+            opener.linkmode=0;
+            opener.draw();
+            self.close();
+        }
+
+        function insertRowInLastRow() {
+            opener.insertrow(opener.maxrow);
+            opener.addobj(opener.maxrow,'e&2');
+        }
+
+        function placeResourceInLastRow (title,url,id,linkflag) {
+            opener.mostrecent=opener.newresource(opener.maxrow,2,opener.unescape(title),
+                              opener.unescape(url),'false','normal',id);
+            opener.save();
+            if (linkflag) {
+                opener.joinres(opener.linkmode,opener.mostrecent,0);
+            }
+            opener.linkmode=opener.mostrecent;
+        }
+JAVASCRIPT
+    }
+    return $js;
+}
 
 # HTML-Markup for table if in view-mode
 my $wishlistHTMLview;
-my $indent = $indentConst;
+my $indent_view = $indentConst;
 sub wishlistView {
     my $nodes = shift;
 
@@ -821,11 +1113,11 @@ sub wishlistView {
  
         # checkboxes
         $wishlistHTMLview .= '<td><input type="checkbox" name="mark" id="check'.$index.'" value="'.$index.'" '.
-                             'onclick="selectAction('."'row".$index."'".')"/></td>';
+                             'onclick="selectAction('."'row".$index."'".')" /></td>';
 
         # entry is a folder
         if ($n->value()->path() eq '') {
-            $wishlistHTMLview .= '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<0?0:($indent-$indentConst)).'px; min-width: 220px;">'.
+            $wishlistHTMLview .= '<td id="padd'.$index.'" style="padding-left:'.(($indent_view-$indentConst)<0?0:($indent_view-$indentConst)).'px; min-width: 220px;">'.
                                  '<a href="javascript:;" onclick="folderAction('."'row".$index."'".')" style="vertical-align:top">'.
                                  '<img src="/adm/lonIcons/arrow.closed.gif" id="img'.$index.'" alt = "" class="LC_icon"/>'.
                                  '<img src="/adm/lonIcons/navmap.folder.closed.gif" id="imgFolder'.$index.'" alt="folder"/>'.
@@ -833,9 +1125,10 @@ sub wishlistView {
         }
         # entry is a link
         else {
-            $wishlistHTMLview .= '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<=0?$indentConst:$indent).'px; min-width: 220px;">'.
+            $wishlistHTMLview .= '<td id="padd'.$index.'" style="padding-left:'.(($indent_view-$indentConst)<=0?$indentConst:$indent_view).'px; min-width: 220px;">'.
+                                 '<a href="javascript:preview('."'".$n->value()->path()."'".');">'.
                                  '<img src="/res/adm/pages/wishlist-link.png" id="img'.$index.'" alt="link" />'.
-                                 '<a href="'.$n->value()->path().'">'.$n->value()->title().'</a></td>';
+                                 $n->value()->title().'</a></td>';
         }
 
         # note-icon, different icons for an entries with note and those without
@@ -862,9 +1155,9 @@ sub wishlistView {
         # if the entry is a folder, it could have other entries as content. if it has, call wishlistView for those entries 
         my @children = $n->children();
         if ($#children >=0) {
-            $indent += 20;
+            $indent_view += 20;
             &wishlistView(\@children);
-            $indent -= 20;
+            $indent_view -= 20;
         }
     }
 }
@@ -872,7 +1165,7 @@ sub wishlistView {
 
 # HTML-Markup for table if in edit-mode
 my $wishlistHTMLedit;
-my $indent = $indentConst;
+my $indent_edit = $indentConst;
 sub wishlistEdit {
     my $nodes = shift;
     my $curNode = 1;
@@ -888,7 +1181,7 @@ sub wishlistEdit {
 
         # checkboxes
         $wishlistHTMLedit .= '<td><input type="checkbox" name="mark" id="check'.$index.'" value="'.$index.'" '.
-                             'onclick="selectAction('."'row".$index."'".')"/></td>';
+                             'onclick="selectAction('."'row".$index."'".')" /></td>';
 
         # option-tags for sorting entries. we need the numbers from 1 to n with n being the number of entries on the same level as the current entry.
         # set the number for the current entry into brackets 
@@ -907,23 +1200,24 @@ sub wishlistEdit {
         if ($n->value()->path() eq '') {
             $wishlistHTMLedit .= '<td><select class="LC_hidden" name="sel" id="sel'.$index.'" onchange="submitSelect();">'.
                                  $options.'</select></td>'.
-                                 '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<0?0:($indent-$indentConst)).'px;">'.
+                                 '<td id="padd'.$index.'" style="padding-left:'.(($indent_edit-$indentConst)<0?0:($indent_edit-$indentConst)).'px;">'.
                                  '<a href="javascript:;" onclick="folderAction('."'row".$index."'".')" style="vertical-align:top" >'.
                                  '<img src="/adm/lonIcons/arrow.closed.gif" id="img'.$index.'" alt = ""  class="LC_icon"/>'.
-                                 '<img src="/adm/lonIcons/navmap.folder.closed.gif" id="imgFolder'.$index.'" alt="folder"/></a>';
+                                 '<img src="/adm/lonIcons/navmap.folder.closed.gif" id="imgFolder'.$index.'" alt="folder"/></a>'.
+                                 '<input type="text" name="newtitle" value="'.$n->value()->title().'" alt = "'.$n->value()->title().'" />'.
+                                 '</td><td></td>';
 
         }
         # entry is a link
         else {
             $wishlistHTMLedit .= '<td><select class="LC_hidden" name="sel" id="sel'.$index.'" onchange="submitSelect();">'.
                                  $options.'</select></td>'.
-                                 '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<=0?$indentConst:$indent).'px;">'.
-                                 '<img src="/res/adm/pages/wishlist-link.png" id="img'.$index.'" alt="link"/>';
+                                 '<td id="padd'.$index.'" style="padding-left:'.(($indent_edit-$indentConst)<=0?$indentConst:$indent_edit).'px;">'.
+                                 '<img src="/res/adm/pages/wishlist-link.png" id="img'.$index.'" alt="link"/>'.
+                                 '<input type="text" name="newtitle" value="'.$n->value()->title().'" alt = "'.$n->value()->title().'" /></td>'.
+                                 '<td><input type="text" name="newpath" value="'.$n->value()->path().'" alt = "'.$n->value()->path().'" /></td>';
         }
-
-        # input-field for title
-        $wishlistHTMLedit .= '<input type="text" name="newtitle" value="'.$n->value()->title().'" alt = "'.$n->value()->title().'"/></td>';
-
+        
         # note-icon, different icons for an entries with note and those without
         my $noteIMG = 'anot.png';
 
@@ -939,7 +1233,7 @@ sub wishlistEdit {
 
         # start row containing the textarea for the note
         $wishlistHTMLedit .= &Apache::loncommon::continue_data_table_row('LC_hidden','note'.$index).
-                             '<td></td><td></td><td>'.
+                             '<td></td><td></td><td colspan="2">'.
                              '<textarea id="noteText'.$index.'" cols="25" rows="3" style="width:100%" '.
                              'name="newnote">'.
                              $n->value()->note().'</textarea></td><td></td>';
@@ -948,9 +1242,9 @@ sub wishlistEdit {
         # if the entry is a folder, it could have other entries as content. if it has, call wishlistEdit for those entries 
         my @children = $n->children();
         if ($#children >=0) {
-            $indent += 20;
+            $indent_edit += 20;
             &wishlistEdit(\@children);
-            $indent -= 20;
+            $indent_edit -= 20;
         }
     }
 }
@@ -960,7 +1254,7 @@ sub wishlistEdit {
 # HTML-Markup for table if in move-mode
 my $wishlistHTMLmove ='<tr id="root" class="LC_odd_row"><td><input type="radio" name="mark" id="radioRoot" value="root" /></td>'.
                       '<td>'.&mt('Top level').'</td><td></td></tr>';
-my $indent = $indentConst;
+my $indent_move = $indentConst;
 sub wishlistMove {
     my $nodes = shift;
     my $marked = shift;
@@ -984,12 +1278,12 @@ sub wishlistMove {
             # display a radio-button, if the folder was not selected to be moved
             if (!$isIn) {
                 $wishlistHTMLmove .= '<td><input type="radio" name="mark" id="radio'.$index.'" value="'.$index.'" /></td>'.
-                                     '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<0?0:($indent-$indentConst)).'px; min-width: 220px;">';
+                                     '<td id="padd'.$index.'" style="padding-left:'.(($indent_move-$indentConst)<0?0:($indent_move-$indentConst)).'px; min-width: 220px;">';
             }
-            # higlight the title, if the folder was selected to be moved
+            # highlight the title, if the folder was selected to be moved
             else {
                 $wishlistHTMLmove .= '<td></td>'.
-                                     '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<0?0:($indent-$indentConst)).'px; min-width: 220px;'.
+                                     '<td id="padd'.$index.'" style="padding-left:'.(($indent_move-$indentConst)<0?0:($indent_move-$indentConst)).'px; min-width: 220px;'.
                                      'color:red;">';
             }
             #arrow- and folder-image, all folders are open, and title
@@ -999,19 +1293,17 @@ sub wishlistMove {
         }
         # entry is a link
         else {
-            if (!$isIn) {
-                $wishlistHTMLmove .= '<td></td>'.
-                                     '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<=0?$indentConst:$indent).'px; min-width: 220px;">';
-            }
             # higlight the title, if the link was selected to be moved
-            else {
-                $wishlistHTMLmove .= '<td></td>'.
-                                     '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<=0?$indentConst:$indent).'px; min-width: 220px;'.
-                                     'color:red;">';
+            my $highlight = '';
+            if ($isIn) {
+               $highlight = 'style="color:red;"';
             }
             # link-image and title
-            $wishlistHTMLmove .= '<img src="/res/adm/pages/wishlist-link.png" id="img'.$index.'" alt="link"/>'.
-                                 $n->value()->title().'</td>';
+            $wishlistHTMLmove .= '<td></td>'.
+                                 '<td id="padd'.$index.'" style="padding-left:'.(($indent_move-$indentConst)<=0?$indentConst:$indent_move).'px; min-width: 220px;">'.
+                                 '<a href="javascript:preview('."'".$n->value()->path()."'".');" '.$highlight.'>'.
+                                 '<img src="/res/adm/pages/wishlist-link.png" id="img'.$index.'" alt="link"/>'.
+                                 $n->value()->title().'</a></td>';
         }
 
         # note-icon, different icons for an entries with note and those without
@@ -1038,32 +1330,140 @@ sub wishlistMove {
         # if the entry is a folder, it could have other entries as content. if it has, call wishlistMove for those entries 
         my @children = $n->children();
         if ($#children >=0) {
-            $indent += 20;
+            $indent_move += 20;
             &wishlistMove(\@children, $marked);
-            $indent -= 20;
+            $indent_move -= 20;
+        }
+    }
+}
+
+
+
+# HTML-Markup for table if in import-mode
+my $wishlistHTMLimport;
+my $indent_imp = $indentConst;
+my $form = 1;
+sub wishlistImport {
+    my ($nodes,$numskipped) = @_;
+
+    my ($is_community,%nopick);
+    if ($env{'request.course.id'}) {
+        if (&Apache::loncommon::course_type() eq 'Community') {
+            $is_community = 1;
+        }
+    }
+
+    foreach my $n (@$nodes) {
+        my $index = $n->value()->nindex();
+        if ($n->value()->path() =~ m{^(/res/$match_domain/$match_username/)}) {
+            if ($is_community) {
+                unless (&Apache::lonnet::allowed('bro',$n->value()->path())) {
+                    $nopick{$n->value()->path()} = $n->value()->title();
+                    $$numskipped ++;
+                }
+            } else {
+                unless (&Apache::lonnet::allowed('bre',$n->value()->path())) {
+                    $nopick{$n->value()->path()} = $n->value()->title();
+                    $$numskipped ++;
+                }
+            }
+        }
+
+        # start row, use data_table routines to set class to LC_even or LC_odd automatically. this row contains a checkbox, the title and the note-icon.
+        # only display the top level entries on load
+        $wishlistHTMLimport .= ($n->parent()->value() eq 'root')?&Apache::loncommon::start_data_table_row('','row'.$index)
+                                                                :&Apache::loncommon::continue_data_table_row('LC_hidden','row'.$index);
+
+ 
+        # checkboxes
+        $wishlistHTMLimport .= '<td>';
+        my ($disabled,$onclick,$image,$style);
+        if ($nopick{$n->value()->path()}) {
+            $disabled = ' disabled="disabled"';
+            $image = 'wishlist-link-lighter.png';
+            $style = 'style="color:#808080;"';
+        } else {
+            $onclick = ' onclick="selectAction('."'row".$index."'".')"';
+            $image = 'wishlist-link.png';
+        }
+        $wishlistHTMLimport .= '<input type="checkbox" name="check" id="check'.$index.'" value="'.$index.'" '.
+                               $disabled.$onclick.' />'.
+                               '<input type="hidden" name="title'.$index.'" value="'.&escape($n->value()->title()).'" />'.
+                               '<input type="hidden" name="filelink'.$index.'" value="'.&escape($n->value()->path()).'" />'.
+                               '<input type="hidden" name="id'.$index.'" />';
+        $wishlistHTMLimport .= '</td>';
+
+        # entry is a folder
+        if ($n->value()->path() eq '') {
+            $wishlistHTMLimport .= '<td id="padd'.$index.'" style="padding-left:'.(($indent_imp-$indentConst)<0?0:($indent_imp-$indentConst)).'px; min-width: 220px;">'.
+                                   '<a href="javascript:;" onclick="folderAction('."'row".$index."'".')" style="vertical-align:top">'.
+                                   '<img src="/adm/lonIcons/arrow.closed.gif" id="img'.$index.'" alt = "" class="LC_icon"/>'.
+                                   '<img src="/adm/lonIcons/navmap.folder.closed.gif" id="imgFolder'.$index.'" alt="folder"/>'.
+                                   $n->value()->title().'</a></td>';
+        }
+        # entry is a link
+        else {
+            $wishlistHTMLimport .= '<td id="padd'.$index.'" style="padding-left:'.(($indent_imp-$indentConst)<=0?$indentConst:$indent_imp).'px; min-width: 220px;">';
+            unless ($nopick{$n->value()->path()}) {
+                $wishlistHTMLimport .= '<a href="javascript:preview('."'".$n->value()->path()."'".');">';
+            }
+            $wishlistHTMLimport .= '<img src="/res/adm/pages/'.$image.'" id="img'.$index.'" alt="link" />'.
+                                   '<span '.$style.'>'.$n->value()->title().'</span></a></td>';
+                                   $form++;
+        }
+
+        # note-icon, different icons for an entries with note and those without
+        my $noteIMG = 'anot.png';
+
+        if ($n->value()->note() ne '') {
+            $noteIMG = 'anot2.png';
+        }
+
+        $wishlistHTMLimport .= '<td style="padding-left:10px;"><a href="javascript:;" onclick="setDisplayNote('."'note".$index."'".')">'.
+                             '<img id="noteImg'.$index.'" src="/res/adm/pages/'.$noteIMG.'" alt="'.&mt('Note').'" title="'.&mt('Note').'" '.
+                             ' class="LC_icon"/></a></td>';
+
+        $wishlistHTMLimport .= &Apache::loncommon::end_data_table_row();
+
+        # start row containing the textarea for the note, do not display note on default, readonly in import-mode
+        $wishlistHTMLimport .= &Apache::loncommon::continue_data_table_row('LC_hidden','note'.$index).
+                             '<td></td><td>'.
+                             '<textarea id="noteText'.$index.'" cols="25" rows="3" style="width:100%" '.
+                             'name="newnote" readonly="readonly">'.
+                             $n->value()->note().'</textarea></td><td></td>';
+        $wishlistHTMLimport .= &Apache::loncommon::end_data_table_row();
+
+        # if the entry is a folder, it could have other entries as content. if it has, call wishlistImport for those entries 
+        my @children = $n->children();
+        if ($#children >=0) {
+            $indent_imp += 20;
+            &wishlistImport(\@children,$numskipped);
+            $indent_imp -= 20;
         }
     }
+    return;
 }
 
 # Returns the HTML-Markup for wishlist
 sub makePage {
+    my $rootgiven = shift;
     my $mode = shift;
     my $marked = shift;
 
+    $root = $rootgiven;
+    @childrenRt = $root->children();
+
     # breadcrumbs and start_page
     &Apache::lonhtmlcommon::clear_breadcrumbs();
     &Apache::lonhtmlcommon::add_breadcrumb(
               { href => '/adm/wishlist?mode='.$mode,
-                text => 'Wishlist'});
-    my $startPage = &Apache::loncommon::start_page('Wishlist',undef,
+                text => 'Stored Links'});
+    my $startPage = &Apache::loncommon::start_page('Stored Links',undef,
                                                      {'add_entries' => {
                                                         'onload' => 'javascript:onLoadAction('."'".$mode."'".');',
                                                         'onunload' => 'javascript:window.name = '."'loncapaclient'"}});
 
-    my $breadcrumbs = &Apache::lonhtmlcommon::breadcrumbs('Wishlist '.
-                           '<a title="Online-Hilfe" href="/adm/help/Wishlist.hlp" target="_top">'.
-                           '<img src="/adm/help/help.png" alt="'.&mt('Help').'" '.
-                           'title="'.&mt('Help').'" class="LC_icon" /></a>');
+    my $breadcrumbs = &Apache::lonhtmlcommon::breadcrumbs(&mt('Stored Links'),'Wishlist');
 
     # get javascript-code for wishlist-interactions
     my $js = &JSforWishlist();
@@ -1084,7 +1484,7 @@ sub makePage {
     # icon for edit-mode, display when in view-mode
     if ($mode eq 'view') {
         $functions .= &Apache::lonhtmlcommon::add_item_funclist('<a href="javascript:;" '.
-                          'onclick="setFormAction('."'save','edit'".'); list.submit();" class="LC_menubuttons_link">'.
+                          'onclick="setFormAction('."'save','edit'".');" class="LC_menubuttons_link">'.
                           '<img src="/res/adm/pages/edit-mode-22x22.png" alt="'.$lt{'ed'}.'" '.
                           'title="'.$lt{'ed'}.'" class="LC_icon"/> '.
                           '<span class="LC_menubuttons_inline_text">'.$lt{'ed'}.'</span></a>');
@@ -1092,7 +1492,7 @@ sub makePage {
     # icon for view-mode, display when in edit-mode
     else {
         $functions .= &Apache::lonhtmlcommon::add_item_funclist('<a href="javascript:;" '.
-                          'onclick="setFormAction('."'save','view'".'); list.submit();" class="LC_menubuttons_link">'.
+                          'onclick="setFormAction('."'save','view'".');" class="LC_menubuttons_link">'.
                           '<img src="/res/adm/pages/view-mode-22x22.png" alt="'.$lt{'vw'}.'" '.
                           'title="'.$lt{'vw'}.'" class="LC_icon"/> '.
                           '<span class="LC_menubuttons_inline_text">'.$lt{'vw'}.'</span></a>');
@@ -1128,7 +1528,7 @@ sub makePage {
 
     # icon for saving changes
     $functions .= &Apache::lonhtmlcommon::add_item_funclist('<a href="javascript:;" '.
-                      'onclick="setFormAction('."'','".$mode."'".'); " class="LC_menubuttons_link">'.
+                      'onclick="setFormAction('."'saveOK','".$mode."'".'); " class="LC_menubuttons_link">'.
                       '<img src="/res/adm/pages/save-22x22.png" alt="'.$lt{'sv'}.'" '.
                       'title="'.$lt{'sv'}.'" class="LC_icon" />'.
                       '<span class="LC_menubuttons_inline_text">'.$lt{'sv'}.'</span></a>');
@@ -1139,10 +1539,10 @@ sub makePage {
 
     # start form 
     my $inner .= '<form name="list" action ="/adm/wishlist" method="post">'.
-                 '<input type="hidden" id="action" name="action" value=""/>';
+                 '<input type="hidden" id="action" name="action" value="" />';
  
     # only display subbox in view- or edit-mode
-    if ($mode ne 'move') {
+    if ($mode eq 'view' || $mode eq 'edit') {
         $inner .= $subbox;
     }
 
@@ -1155,7 +1555,7 @@ sub makePage {
             $inner .= &Apache::loncommon::end_data_table();
         }
         else {
-            $inner .= '<span class="LC_info">'.&mt("Your wihlist ist currently empty.").'</span>';
+            $inner .= '<span class="LC_info">'.&mt("Your Stored Links list is currently empty.").'</span>';
         }
         $wishlistHTMLedit = '';
     }
@@ -1165,7 +1565,7 @@ sub makePage {
             $inner .= '<table class="LC_data_table LC_tableOfContent">'.$wishlistHTMLview.'</table>';
         }
         else {
-            $inner .= '<span class="LC_info">'.&mt("Your wihlist ist currently empty.").'</span>';
+            $inner .= '<span class="LC_info">'.&mt("Your Stored Links list is currently empty.").'</span>';
         }
         $wishlistHTMLview = '';
     }
@@ -1176,20 +1576,20 @@ sub makePage {
         }
         if ($markStr) {
             $markStr = substr($markStr, 0, length($markStr)-1);
-            $inner .= '<input type="hidden" value="'.$markStr.'" name="markedToMove"/>';
-            $inner .= '<span class="LC_info">'.&mt('You have selected the red marked entries to be moved to another folder. '.
-                                                   'Now choose the new destination folder.').'</span><br/><br/>';
+            $inner .= '<input type="hidden" value="'.$markStr.'" name="markedToMove" />';
+            $inner .= '<p><span class="LC_info">'.&mt('You have selected the red marked entries to be moved to another folder. '.
+                                                   'Now choose the new destination folder.').'</span></p>';
             &wishlistMove(\@childrenRt, $marked);
             $inner .= '<table class="LC_data_table LC_tableOfContent">'.$wishlistHTMLmove.'</table><br/><br/>';
-            $inner .= '<input type="button" value="'.&mt('Move').'" onclick="setFormAction('."'','view'".'); selectDestinationFolder()"/>'.
-                      '<input type="button" value="'.&mt('Cancel').'" onclick="go('."'/adm/wishlist'".')"/>';
+            $inner .= '<input type="button" value="'.&mt('Move').'" onclick="setFormAction('."'move','view'".');" />'.
+                      '<input type="button" value="'.&mt('Cancel').'" onclick="go('."'/adm/wishlist'".')" />';
 
             $wishlistHTMLmove ='<tr id="root" class="LC_odd_row"><td><input type="radio" name="mark" id="radioRoot" value="root" /></td>'.
                                '<td>'.&mt('Top level').'</td><td></td></tr>';
         }
         else {
-            $inner .= '<span class="LC_info">'.&mt("You haven't marked any entry to move.").'</span><br/>'.
-                      '<input type="button" value="'.&mt('Back').'" onclick="go('."'/adm/wishlist'".')"/>';
+            $inner .= '<p><span class="LC_info">'.&mt("You haven't marked any entry to move.").'</span></p>'.
+                      '<input type="button" value="'.&mt('Back').'" onclick="go('."'/adm/wishlist'".')" />';
         }
     }
     
@@ -1199,32 +1599,294 @@ sub makePage {
     # end_page 
     my $endPage =  &Apache::loncommon::end_page();
 
-    # put all page-elements togther
+    # put all page-elements together
     my $page = $startPage.$breadcrumbs.$js.$inner.$endPage;
 
     return $page;
 }
 
 
+# Returns the HTML-Markup for the PopUp, shown when a new link should set, when NOT
+# beeing in the wishlist-interface (method is called in lonmenu and lonsearchcat)
+sub makePopUpNewLink {
+    my ($title, $path) = @_;
+
+    # Get all existing folders to offer posibility to set a new link
+    # into a folder
+    my %TreeHashLink = &Apache::lonwishlist::getWishlist();
+    my $rootLink = &Apache::Tree::HashToTree(\%TreeHashLink);
+    my @childrenRtLink = $rootLink->children();
+
+    $foldersOption = '';
+    @allFolders = ();
+    &getFoldersToArray(\@childrenRtLink);
+    &getFoldersForOption(\@childrenRtLink);
+
+    my $options = '<option value="" selected="selected">('.&mt('Top level').')</option>'.$foldersOption;
+    $foldersOption = '';
+    @allFolders = ();
+
+    # HTML-Markup for the Pop-Up-window 'Set a link for this resource to wishlist'
+    my $startPageWishlistlink = 
+        &Apache::loncommon::start_page('Save to Stored Links',undef,
+                                      {'only_body' => 1,
+                                       'bgcolor'   => '#FFFFFF',});
+
+    my $warningLink = &mt('You must insert a title!');
+    my $warningLinkNotAllowed1 =
+        &mt('You can only insert links to LON-CAPA resources from the resource-pool'.
+            ' or to external websites.'.
+            ' Paths to LON-CAPA resources must be of the form /res/domain/user/...'.
+            ' Paths to external websites must contain the network protocol, e.g. http://...');
+
+    my $inPageWishlistlink1 = '<h1>'.&mt('Save to Stored Links').'</h1>';
+    # If no title is delivered, 'New Link' is called up from the wishlist-interface, so after
+    # submitting the window should close instead of offering a link to wishlist (like it should do
+    # if we call 'Set New Link' from within a browsed ressource)
+    if (!$title) {
+        $inPageWishlistlink1 .= '<form method="post" name="newlink" action="/adm/wishlist" target="wishlist"'.
+                                'onsubmit="return newlinksubmit();" >';
+    }
+    else {
+        $inPageWishlistlink1 .= '<form method="post" name="newlink" action="/adm/wishlist?mode=set" '.
+                                'onsubmit="return newlinksubmit();" >';
+    }
+    $inPageWishlistlink1 .= &Apache::lonhtmlcommon::start_pick_box().
+                            &Apache::lonhtmlcommon::row_title(&mt('Link Title'));
+
+    my $inPageWishlistlink2 = &Apache::lonhtmlcommon::row_closure().
+                              &Apache::lonhtmlcommon::row_title(&mt('Path'));
+
+    my $inPageWishlistlink3 = &Apache::lonhtmlcommon::row_closure().
+                              &Apache::lonhtmlcommon::row_title(&mt('Note')).
+                              '<textarea name="note" rows="3" cols="35" style="width:100%"></textarea>'.
+                              &Apache::lonhtmlcommon::row_closure(1).
+                              &Apache::lonhtmlcommon::end_pick_box().
+                              '<br/><br/>'.
+                              '<input type="submit" value="'.&mt('Save in').'" />'.
+                              '<select name="folders">'.
+                              $options.
+                              '</select>'.
+                              '<input type="button" value="'.&mt('Cancel').'" onclick="javascript:window.close();" />'.
+                              '</form>';
+    $options = '';
+
+    my $endPageWishlistlink = &Apache::loncommon::end_page();
+
+    my $popUp = $startPageWishlistlink.
+    $inPageWishlistlink1.
+    '<input type="text" name="title" size="45" value="" />'.
+    $inPageWishlistlink2.
+    '<input type="text" name="path" size="45" value="" />'.
+    $inPageWishlistlink3;
+
+    # JavaScript-function to set title and path of ressource automatically
+    # and show warning, if no title was set or path is invalid
+    $popUp .= <<SCRIPT;
+    <script type="text\/javascript">
+    document.getElementsByName("title")[0].value = '$title';
+    document.getElementsByName("path")[0].value = '$path';
+    var fromwishlist = false;
+    var titleget = '$title';
+    if (!titleget) {
+        fromwishlist = true;
+    } 
+    function newlinksubmit(){
+    var title = document.getElementsByName("title")[0].value;
+    var path = document.getElementsByName("path")[0].value;
+    if (!title) {
+        alert("$warningLink");
+        return false;}
+    var linkOK = (path.match(/\^http:(\\\/\\\/)/) || path.match(/\^https:(\\\/\\\/)/))
+    && !(path.match(/\\.problem/) || path.match(/\\.exam/)
+    || path.match(/\\.quiz/) || path.match(/\\.assess/)
+    || path.match(/\\.survey/) || path.match(/\\.form/)
+    || path.match(/\\.library/) || path.match(/\\.page/)
+    || path.match(/\\.sequence/));
+    if (!path.match(/\^(\\\/res\\\/)/) && !linkOK) {
+        alert("$warningLinkNotAllowed1");
+        return false;}
+    if (fromwishlist) {
+        window.close();
+    }
+    return true;}
+    <\/script>
+SCRIPT
+
+    $popUp .= $endPageWishlistlink;
+
+    return $popUp;
+}
+
+sub makePopUpNewFolder {
+    # Get all existing folders to offer posibility to create a new folder
+    # into an existing folder
+    my %TreeHashLink = &Apache::lonwishlist::getWishlist();
+    my $rootLink = &Apache::Tree::HashToTree(\%TreeHashLink);
+    my @childrenRtLink = $rootLink->children();
+
+    $foldersOption = '';
+    @allFolders = ();
+    &getFoldersToArray(\@childrenRtLink);
+    &getFoldersForOption(\@childrenRtLink);
+
+    my $options = '<option value="" selected="selected">('.&mt('Top level').')</option>'.$foldersOption;
+    $foldersOption = '';
+    @allFolders = ();
+
+    # HTML-Markup for the Pop-Up-window 'New Folder'
+    my $startPageWishlistfolder = 
+        &Apache::loncommon::start_page('New Folder',undef,
+                                      {'only_body' => 1,
+                                       'bgcolor'   => '#FFFFFF',});
+
+    my $warningFolder = &mt('You must insert a title!');
+
+
+    my $inPageNewFolder = '<h1>'.&mt('New Folder').'</h1>'.
+                          '<form method="post" name="newfolder" action="/adm/wishlist" target="wishlist" '.
+                          'onsubmit="return newfoldersubmit();" >'.
+                          &Apache::lonhtmlcommon::start_pick_box().
+                          &Apache::lonhtmlcommon::row_title(&mt('Folder title')).
+                          '<input type="text" name="title" size="45" value="" /><br />'.
+                          &Apache::lonhtmlcommon::row_closure().
+                          &Apache::lonhtmlcommon::row_title(&mt('Note')).
+                          '<textarea name="note" rows="3" cols="35" style="width:100%"></textarea><br />'.
+                          &Apache::lonhtmlcommon::row_closure(1).
+                          &Apache::lonhtmlcommon::end_pick_box().
+                          '<br/><br/>'.
+                          '<input type="submit" value="'.&mt('Save in').'" />'.
+                          '<select name="folders">'.
+                          $options.
+                          '</select>'.
+                          '<input type="button" value="'.&mt('Cancel').'" onclick="javascript:window.close();" />'.
+                          '</form>';
+    my $endPageWishlistfolder = &Apache::loncommon::end_page();
+
+    my $popUp = $startPageWishlistfolder.
+    $inPageNewFolder;
+
+    $popUp .= <<SCRIPT;
+    <script type="text\/javascript">
+        function newfoldersubmit(){
+            var title = document.getElementsByName("title")[0].value;
+            if (!title) {
+            alert("$warningFolder");
+            return false;}
+            else {
+            window.close();
+            return true;}}
+    <\/script>
+SCRIPT
+
+    $popUp .= $endPageWishlistfolder;
+
+    return $popUp;
+}
+
 # Returns the HTML-Markup for the page, shown when a link was set
 sub makePageSet {
+    my $title = 'Stored Links';
+
+    # start_page
+    my $output =
+        &Apache::loncommon::start_page($title,undef,
+                                       {'only_body' => 1})
+       .'<h1>'.&mt($title).'</h1>';
+    
+    # confirm success and offer link to wishlist
+    $output .=
+        &Apache::loncommon::confirmwrapper(
+            &Apache::lonhtmlcommon::confirm_success(
+                &mt('Link successfully saved!')))
+       .&Apache::lonhtmlcommon::actionbox(
+            ['<a href="javascript:;" onclick="opener.open('."'/adm/wishlist'".');window.close();">'.&mt('Go to Stored Links').'</a>',
+             '<a href="javascript:;" onclick="window.close();">'.&mt('Close this window').'</a>'
+            ]);
+
+    # end_page 
+    $output .= &Apache::loncommon::end_page();
+
+    return $output;
+}
+
+
+# Returns the HTML-Markup for the page, shown when links should be imported into a course
+sub makePageImport {
+    my $rootgiven = shift;
+    my $rat = shift;
+
+    $root = $rootgiven;
+    @childrenRt = $root->children();
     # start_page 
-    my $startPage = &Apache::loncommon::start_page('Wishlist',undef,
+    my $startPage = &Apache::loncommon::start_page('Stored Links',undef,
                                                    {'only_body' => 1});
     
-    # confirm success and offer link to wishlist
-    my $message = &Apache::lonhtmlcommon::confirm_success(&mt('Link successfully set!'));
-    $message = &Apache::loncommon::confirmwrapper($message);
+    # get javascript-code for wishlist-interactions
+    my $js = &JSforWishlist();
+    $js .= &JSforImport($rat);
+
+    my $inner = '<h1>'.&mt('Import Resources from Stored Links').'</h1>';
+    if (!$rat) {
+        $inner .=
+            '<ul>'.
+            '<li class="LC_info">'.&mt('Use the checkboxes corresponding to a folder to '.
+                'easily check all links within the folder.').'</li>'.
+            '<li class="LC_info">'.&mt('The folder structure itself cannot be imported.').'</li>'.
+            '<li class="LC_info">'.&mt('All checked links will be imported into the current folder of your course.').'</li>'.
+            '</ul>';
+    }
+    else {
+        $inner .=
+            '<ul>'.
+            '<li class="LC_info">'.&mt('Use the checkboxes corresponding to a folder to '.
+                'easily check all links within this folder.').'</li>'.
+            '<li class="LC_info">'.&mt('The folder structure itself cannot be imported.').'</li>'.
+            '</ul>';
+    }
+    my %wishlist = &getWishlist();
+
+    #FIXME Saved string containing all folders in wishlist.db-file (key 'folders') in first version of lonwishlist
+    #After splitting lonwishlist into two modules, this is not necessary anymore. So, dependent from when the wishlist
+    #was first called (i.e. when wishlist.db was created), there might be an entry 'folders' or not. Number of links in
+    #wishlist.db depends on wether this entry exists or not...JW  
+    my $fnum;
+    if (defined $wishlist{'folders'}) {
+        $fnum = (keys %wishlist)-2;
+    }
+    else {
+        $fnum = (keys %wishlist)-1;
+    }
 
-    my $inner .= '<br>'.$message.'<br/><br/>'.
-                 '<a href="javascript:;" onclick="opener.open('."'/adm/wishlist'".');window.close();">'.&mt('Go to wishlist').'</a>'.
-                 '&nbsp;<a href="javascript:;" onclick="window.close();">'.&mt('Close this window').'</a>';
+    $inner .= '<form method="post" name="groupsort" action="">'.
+              '<input type="hidden" value="'.$fnum.'" name="fnum" />'.
+              '<input type="button" onclick="javascript:checkAll()" id="checkallbutton" value="'.&mt('Check All').'" />'.
+              '<input type="button" onclick="javascript:uncheckAll()" id="uncheckallbutton" value="'.&mt('Uncheck All').'" />'.
+              '<input type="button" value="'.&mt('Import Checked').'" onclick="finish_import();" />'.    
+              '<input type="button" value="'.&mt('Cancel').'" onclick="window.close();" /><br/><br/>'; 
+
+    
+    # wishlist-table
+    my $numskipped = 0;
+    &wishlistImport(\@childrenRt,\$numskipped);
+    if ($wishlistHTMLimport ne '') {
+        $inner .= '<table class="LC_data_table LC_tableOfContent">'.$wishlistHTMLimport.'</table>';
+    }
+    else {
+        $inner .= '<span class="LC_info">'.&mt("Your Stored Links list is currently empty.").'</span>';
+    }
+    if ($numskipped > 0) {
+        $inner .= '<p class="LC_info">'.&mt('Note: where a Stored Link is unavailable for import in the current context it is grayed out.').'</p>';
+    }
+    $wishlistHTMLimport = '';
+
+    $inner .= '</form>';
 
     # end_page 
     my $endPage =  &Apache::loncommon::end_page();
 
-    # put all page-elements togther
-    my $page = $startPage.$inner.$endPage;
+    # put all page-elements together
+    my $page = $startPage.$js.$inner.$endPage;
 
     return $page;
 }
@@ -1235,140 +1897,87 @@ sub makeErrorPage {
     # breadcrumbs and start_page 
     &Apache::lonhtmlcommon::add_breadcrumb(
               { href => '/adm/wishlist',
-                text => 'Wishlist'});
-    my $startPage = &Apache::loncommon::start_page('Wishlist');
+                text => 'Stored Links'});
+    my $startPage = &Apache::loncommon::start_page('Stored Links');
     
-    my $breadcrumbs = &Apache::lonhtmlcommon::breadcrumbs('Wishlist '.
-                           '<a title="Online-Hilfe" href="/adm/help/Wishlist.hlp" target="_top">'.
-                           '<img src="/adm/help/help.png" alt="'.&mt('Help').'" '.
-                           'title="'.&mt('Help').'" class="LC_icon" /></a>');
+    my $breadcrumbs = &Apache::lonhtmlcommon::breadcrumbs(&mt('Stored Links'),'Wishlist');
     &Apache::lonhtmlcommon::clear_breadcrumbs();
 
     # error-message
-    my $inner .= '<span class="LC_error">'.&mt('An error occurred! Please try again later.').'</span>';
+    my $inner .= '<p class="LC_error">'.&mt('An error occurred! Please try again later.').'</p>';
 
     # end_page 
     my $endPage =  &Apache::loncommon::end_page();
 
-    # put all page-elements togther
+    # put all page-elements together
     my $page = $startPage.$breadcrumbs.$inner.$endPage;
 
     return $page;
 }
 
-# ----------------------------------------------------- Main Handler, package lonwishlist
-sub handler {
-    my ($r) = @_;
-    &Apache::loncommon::content_type($r,'text/html');
-    $r->send_http_header;
-
-    if (&getWishlist() ne 'error') {
-        # get wishlist entries from user-data db-file and build a tree out of these entries
-        %TreeHash = &getWishlist();
-        $root = &Tree::HashToTree();
-        @childrenRt = $root->children();
-
-        # greate a new entry
-        if ($env{'form.title'}) {
-           &newEntry($env{'form.title'}, $env{'form.path'}, $env{'form.note'});
-        }
-
-        # get unprocessed_cgi (i.e. marked entries, mode ...) 
-        &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['action','mark','markedToMove','mode','newtitle','note']);
-
-        # change the order of entries within a level, that means sorting the entries
-        my $changeOrder = 0;
-        if (defined $env{'form.sel'}) {
-            my @sel = &Apache::loncommon::get_env_multiple('form.sel');
-            my $indexNode;
-            my $at;
-            for (my $s=0; $s<($#sel+1); $s++) {
-                if ($sel[$s] ne '') {
-                    $indexNode = $s;
-                    $at = $sel[$s]-1;
-                }
-            }
-            if ($at ne '') {
-                $changeOrder = 1;
-                &sortEntries($indexNode,$at);
-                &saveChanges();
-            }
-        }
 
-        # get all marked (checkboxes) entries
-        my @marked = ();
-        if (defined $env{'form.mark'}) {
-            @marked = &Apache::loncommon::get_env_multiple('form.mark');
-        }
-
-        # move entries from one folder to another
-        if (defined $env{'form.markedToMove'}) {
-           my $markedToMove = $env{'form.markedToMove'};
-           my @ToMove = split(/\,/,$markedToMove);
-           my $moveTo = $env{'form.mark'};
-           if (defined $moveTo){ 
-               &moveEntries(\@ToMove,$moveTo);
-               &saveChanges();
-           }
-           $changeOrder = 1;
-    
-        }
+# ----------------------------------------------------- package Tree
+# Extend CPAN-Module Tree by function like 'moveNode' or 'deleteNode'
+package Apache::Tree;
 
-        # delete entries
-        if ($env{'form.action'} eq 'delete') {
-            &deleteEntries(\@marked);
-        }
+=pod
+
+=head2 Routines from package Tree
+
+=over 4
+
+=item * &getNodeByIndex(index, nodes)
+
+     Searches for a node, specified by the index, in nodes (reference to array) and returns it. 
+ 
+
+=item * &moveNode(node, at, newParent)
+
+     Moves a given node to a new parent (if new parents is defined) or change the position from a node within its siblings (means sorting, at must be defined).
+
+
+=item * &removeNode(node)
+
+     Removes a node given by node from the tree.
+
+
+=item * &TreeIndex(children)
+
+     Sets an index for every node in the tree, beginning with 0.
+     Recursive call starting with all children of the root of the tree (parameter children is reference to an array containing the nodes of the current level).     
+
+
+=item * &setCountZero()
+
+     Resets index counter.
+
+
+=item * &RootToHash(childrenRt)
+
+     Converts the root-node to a hash-entry: the key is root and values are just the indices of root's children.
    
 
-        # get all titles and notes and save them
-        # only save, if user wants to save changes
-        # do not save, when current action is 'delete' or 'sort' or 'move' 
-        my @newTitles = ();
-        my @newNotes = ();
-        if ((defined $env{'form.newtitle'} || defined $env{'form.newnote'}) && ($env{'form.action'} ne 'noSave') && ($env{'form.action'} ne 'delete') && !$changeOrder) {
-            @newTitles = &Apache::loncommon::get_env_multiple('form.newtitle');
-            @newNotes = &Apache::loncommon::get_env_multiple('form.newnote');
-            my $node = 0;
-            foreach my $t (@newTitles) {
-               &setNewTitle($node, $t);
-               $node++;
-            }
-            $node = 0;
-            foreach my $n (@newNotes) {
-               &setNewNote($node, $n);
-               $node++;
-            }
-            &saveChanges();
-        }
-
-        # Create HTML-markup
-        my $page;
-        if ($env{'form.mode'} eq 'edit') {
-            $page = &makePage("edit");
-        }
-        elsif ($env{'form.mode'} eq 'move') {
-            $page = &makePage("move", \@marked);
-        }
-        elsif ($env{'form.mode'} eq 'set') {
-            $page = &makePageSet();
-        }
-        else {
-            $page = &makePage("view");
-        }
-        @marked = ();
-        $r->print($page);
-    }
-    # An error occured, print an error-page
-    else {
-        my $errorPage = &makeErrorPage();
-        $r->print($errorPage);
-    }
-    return OK;
-}
+=item * &TreeToHash(childrenRt)
+
+     Converts all other nodes in the tree to hash. Each node is one hash-entry where the keys are the index of a node and the values are all other attributes (containing tile, path, note, date and indices for all direct children).
+     Recursive call starting with all children of the root of the tree (parameter childrenRT is reference to an array containing the nodes of the current level).     
+
+
+=item * &HashToTree()
+
+     Converts the hash to a tree. Builds a tree-object for each entry in the hash. Afterwards call &buildTree(node, childrenIn, TreeNodes, TreeHash) to connect the tree-objects.
+
+
+=item * &buildTree(node, childrenIn, TreeNodes, TreeHash)
+
+     Joins the nodes to a tree.
+     Recursive call starting with root and all children of root (parameter childrenIn is reference to an array containing the nodes indices of the current level).
+   
+
+=back
+
+=cut
 
-# ----------------------------------------------------- package Tree
-# Extend CPAN-Module Tree by function like 'moveNode' or 'deleteNode'
-package Tree;
 
 # returns the node with a given index from a list of nodes
 sub getNodeByIndex {
@@ -1376,9 +1985,9 @@ sub getNodeByIndex {
     my $nodes = shift;
     my $found;
     
-    for my $n (@$nodes) {
+    foreach my $n (@$nodes) {
         my $curIndex = $n->value()->nindex();
-        if ($n->value()->nindex() == $index) {
+        if ($curIndex == $index) {
             $found = $n;
         }
     }
@@ -1492,15 +2101,16 @@ sub TreeToHash {
 # build a tree-object for each entry in the hash
 # afterwards call &buildTree to connect the tree-objects
 sub HashToTree {
+    my $TreeHash = shift;
     my @TreeNodes = ();
     my $root;
 
-    foreach my $key (keys %TreeHash) {
+    foreach my $key (keys %$TreeHash) {
         if ($key eq 'root') {
             $root = Tree->new("root");
         }
-        else {
-        my @attributes = @{ $TreeHash{$key} };
+        elsif ($key ne 'folders') {
+        my @attributes = @{ $$TreeHash{$key} };
         my $tmpNode;
             $tmpNode = Tree->new(Entry->new(title=>$attributes[0],
                                             path=>$attributes[1],
@@ -1514,13 +2124,13 @@ sub HashToTree {
         shift(@attributes);
         shift(@attributes);
         shift(@attributes);
-        $TreeHash{$key} = [ @attributes ];
+        $$TreeHash{$key} = [ @attributes ];
         }
     }
     # if there are nodes, build up the tree-structure
-    if (defined $TreeHash{'root'}) {
-        my @childrenRtIn = @{ $TreeHash{'root'} };
-        &buildTree(\$root, \@childrenRtIn,\@TreeNodes,\%TreeHash);
+    if (defined $$TreeHash{'root'} && $$TreeHash{'root'} ne '') {
+        my @childrenRtIn = @{ $$TreeHash{'root'} };
+        &buildTree(\$root, \@childrenRtIn,\@TreeNodes,$TreeHash);
     }
     return $root; 
 }