--- loncom/interface/lonwishlist.pm	2012/05/15 01:41:27	1.12
+++ loncom/interface/lonwishlist.pm	2014/01/29 16:25:44	1.19
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Utility-routines for wishlist
 #
-# $Id: lonwishlist.pm,v 1.12 2012/05/15 01:41:27 raeburn Exp $
+# $Id: lonwishlist.pm,v 1.19 2014/01/29 16:25:44 bisitz Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -50,7 +50,7 @@ use Apache::lonnet;
 use Apache::loncommon();
 use Apache::lonhtmlcommon;
 use Apache::lonlocal;
-use LONCAPA;
+use LONCAPA qw(:DEFAULT :match);
 use Tree;
 
 
@@ -466,11 +466,13 @@ sub getNodesToArray {
      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)
+=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).     
- 
+     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)
 
@@ -528,14 +530,16 @@ sub JSforWishlist {
     # 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/dom/usr... . '.
-                                    'Paths to external websites must contain the network protocol (e.g. http://...).');
-    my $warningLinkNotAllowed2 = &mt('The following link is not allowed: ');
+    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 $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 = '';
@@ -808,7 +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) {
@@ -1008,14 +1014,18 @@ sub JSforWishlist {
     function checkAll() {
         var checkboxes = document.getElementsByName('check');
         for (var i = 0; i < checkboxes.length; i++) {
-            checkboxes[i].checked = "checked";
+            if (!checkboxes[i].disabled) {
+                checkboxes[i].checked = "checked";
+            }
         }
     }
 
     function uncheckAll() {
         var checkboxes = document.getElementsByName('check');
         for (var i = 0; i < checkboxes.length; i++) {
-            checkboxes[i].checked = "";
+            if (!checkboxes[i].disabled) {
+                checkboxes[i].checked = "";
+            }
         }
     }
 
@@ -1088,7 +1098,7 @@ JAVASCRIPT
 
 # HTML-Markup for table if in view-mode
 my $wishlistHTMLview;
-my $indent = $indentConst;
+my $indent_view = $indentConst;
 sub wishlistView {
     my $nodes = shift;
 
@@ -1107,7 +1117,7 @@ sub wishlistView {
 
         # 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"/>'.
@@ -1115,7 +1125,7 @@ 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" />'.
                                  $n->value()->title().'</a></td>';
@@ -1145,9 +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;
         }
     }
 }
@@ -1155,7 +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 $curNode = 1;
@@ -1190,7 +1200,7 @@ sub wishlistEdit {
         if ($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>'.
@@ -1202,7 +1212,7 @@ sub wishlistEdit {
         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;">'.
+                                 '<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>';
@@ -1232,9 +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;
         }
     }
 }
@@ -1244,7 +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 $marked = shift;
@@ -1268,12 +1278,12 @@ sub wishlistMove {
             # display a radio-button, if the folder was not selected to be moved
             if (!$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
@@ -1290,7 +1300,7 @@ sub wishlistMove {
             }
             # link-image and title
             $wishlistHTMLmove .= '<td></td>'.
-                                 '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<=0?$indentConst:$indent).'px; min-width: 220px;">'.
+                                 '<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>';
@@ -1320,9 +1330,9 @@ 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;
         }
     }
 }
@@ -1331,13 +1341,33 @@ sub wishlistMove {
 
 # HTML-Markup for table if in import-mode
 my $wishlistHTMLimport;
-my $indent = $indentConst;
+my $indent_imp = $indentConst;
 my $form = 1;
 sub wishlistImport {
-    my $nodes = shift;
+    my ($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
@@ -1346,17 +1376,26 @@ sub wishlistImport {
 
  
         # checkboxes
-        $wishlistHTMLimport .= '<td>'.
-                               '<input type="checkbox" name="check" id="check'.$index.'" value="'.$index.'" '.
-                               'onclick="selectAction('."'row".$index."'".')" />'.
+        $wishlistHTMLimport .= '<td>';
+        my ($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'.$index.'" />'.
-                               '</td>';
+                               '<input type="hidden" name="id'.$index.'" />';
+        $wishlistHTMLimport .= '</td>';
 
         # entry is a folder
         if ($n->value()->path() eq '') {
-            $wishlistHTMLimport .= '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<0?0:($indent-$indentConst)).'px; min-width: 220px;">'.
+            $wishlistHTMLimport .= '<td id="padd'.$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"/>'.
@@ -1364,10 +1403,12 @@ sub wishlistImport {
         }
         # entry is a link
         else {
-            $wishlistHTMLimport .= '<td id="padd'.$index.'" style="padding-left:'.(($indent-$indentConst)<=0?$indentConst:$indent).'px; min-width: 220px;">'.
-                                   '<a href="javascript:preview('."'".$n->value()->path()."'".');">'.
-                                   '<img src="/res/adm/pages/wishlist-link.png" id="img'.$index.'" alt="link" />'.
-                                   $n->value()->title().'</a></td>';
+            $wishlistHTMLimport .= '<td id="padd'.$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++;
         }
 
@@ -1395,11 +1436,12 @@ sub wishlistImport {
         # 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 += 20;
-            &wishlistImport(\@children);
-            $indent -= 20;
+            $indent_imp += 20;
+            &wishlistImport(\@children,$numskipped);
+            $indent_imp -= 20;
         }
     }
+    return;
 }
 
 # Returns the HTML-Markup for wishlist
@@ -1421,7 +1463,7 @@ sub makePage {
                                                         'onload' => 'javascript:onLoadAction('."'".$mode."'".');',
                                                         'onunload' => 'javascript:window.name = '."'loncapaclient'"}});
 
-    my $breadcrumbs = &Apache::lonhtmlcommon::breadcrumbs(&mt('Stored Links').&Apache::loncommon::help_open_topic('Wishlist'));
+    my $breadcrumbs = &Apache::lonhtmlcommon::breadcrumbs(&mt('Stored Links'),'Wishlist');
 
     # get javascript-code for wishlist-interactions
     my $js = &JSforWishlist();
@@ -1513,7 +1555,7 @@ sub makePage {
             $inner .= &Apache::loncommon::end_data_table();
         }
         else {
-            $inner .= '<span class="LC_info">'.&mt("Your Store Links list is currently empty.").'</span>';
+            $inner .= '<span class="LC_info">'.&mt("Your Stored Links list is currently empty.").'</span>';
         }
         $wishlistHTMLedit = '';
     }
@@ -1591,9 +1633,11 @@ sub makePopUpNewLink {
                                        '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/dom/usr... . '.
-                                    'Paths to external websites must contain the network protocol (e.g. http://...).');
+    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
@@ -1623,7 +1667,7 @@ sub makePopUpNewLink {
                               '<select name="folders">'.
                               $options.
                               '</select>'.
-                              '<input type="button" value="'.&mt('cancel').'" onclick="javascript:window.close();" />'.
+                              '<input type="button" value="'.&mt('Cancel').'" onclick="javascript:window.close();" />'.
                               '</form>';
     $options = '';
 
@@ -1742,25 +1786,28 @@ SCRIPT
 
 # Returns the HTML-Markup for the page, shown when a link was set
 sub makePageSet {
-    # start_page 
-    my $startPage = &Apache::loncommon::start_page('Stored Links',undef,
-                                                   {'only_body' => 1});
+    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
-    my $message = &Apache::lonhtmlcommon::confirm_success(&mt('Link successfully saved!'));
-    $message = &Apache::loncommon::confirmwrapper($message);
-
-    my $inner .= '<br>'.$message.'<br/><br/>'.
-                 '<a href="javascript:;" onclick="opener.open('."'/adm/wishlist'".');window.close();">'.&mt('Go to Stored Links').'</a>'.('&nbsp;' x 3).
-                 '<a href="javascript:;" onclick="window.close();">'.&mt('Close this window').'</a>';
+    $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 
-    my $endPage =  &Apache::loncommon::end_page();
-
-    # put all page-elements together
-    my $page = $startPage.$inner.$endPage;
+    $output .= &Apache::loncommon::end_page();
 
-    return $page;
+    return $output;
 }
 
 
@@ -1781,14 +1828,21 @@ sub makePageImport {
 
     my $inner = '<h1>'.&mt('Import Resources from Stored Links').'</h1>';
     if (!$rat) {
-        $inner .= '<p><span class="LC_info">'.&mt("Please note that you  can use the checkboxes corresponding to a folder to ".
-                                                  "easily check all links within this folder. The folder structure itself can't be imported. ".
-                                                  "All checked links will be imported into the current folder of your course.").'</span></p>';
+        $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 .= '<p><span class="LC_info">'.&mt("Please note that you  can use the checkboxes corresponding to a folder to ".
-                                                  "easily check all links within this folder. The folder structure itself can't be imported. ")
-                                                  .'</span></p>';
+        $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();
 
@@ -1813,13 +1867,17 @@ sub makePageImport {
 
     
     # wishlist-table
-    &wishlistImport(\@childrenRt);
+    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>';
@@ -1839,14 +1897,14 @@ sub makeErrorPage {
     # breadcrumbs and start_page 
     &Apache::lonhtmlcommon::add_breadcrumb(
               { href => '/adm/wishlist',
-                text => 'Wishlist'});
+                text => 'Stored Links'});
     my $startPage = &Apache::loncommon::start_page('Stored Links');
     
-    my $breadcrumbs = &Apache::lonhtmlcommon::breadcrumbs(&mt('Stored Links').&Apache::loncommon::help_open_topic('Wishlist'));
+    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();