--- loncom/interface/loncommon.pm	2011/12/08 01:16:14	1.1030
+++ loncom/interface/loncommon.pm	2011/12/20 22:43:34	1.1040
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common routines
 #
-# $Id: loncommon.pm,v 1.1030 2011/12/08 01:16:14 www Exp $
+# $Id: loncommon.pm,v 1.1040 2011/12/20 22:43:34 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1186,7 +1186,7 @@ sub help_open_topic {
     my ($topic, $text, $stayOnPage, $width, $height, $imgid) = @_;
     $text = "" if (not defined $text);
     $stayOnPage = 0 if (not defined $stayOnPage);
-    $width = 350 if (not defined $width);
+    $width = 500 if (not defined $width);
     $height = 400 if (not defined $height);
     my $filename = $topic;
     $filename =~ s/ /_/g;
@@ -1197,7 +1197,9 @@ sub help_open_topic {
     $topic=~s/\W/\_/g;
 
     if (!$stayOnPage) {
-	$link = "javascript:void(open('/adm/help/${filename}.hlp', 'Help_for_$topic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
+	$link = "javascript:openMyModal('/adm/help/${filename}.hlp',$width,$height,'yes');";
+    } elsif ($stayOnPage eq 'popup') {
+        $link = "javascript:void(open('/adm/help/${filename}.hlp', 'Help_for_$topic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
     } else {
 	$link = "/adm/help/${filename}.hlp";
     }
@@ -1230,27 +1232,22 @@ sub help_open_topic {
 # This is a quicky function for Latex cheatsheet editing, since it 
 # appears in at least four places
 sub helpLatexCheatsheet {
-    my ($topic,$text,$not_author) = @_;
+    my ($topic,$text,$not_author,$stayOnPage) = @_;
     my $out;
     my $addOther = '';
     if ($topic) {
-	$addOther = '<span>'.&Apache::loncommon::help_open_topic($topic,&mt($text),
-							       undef, undef, 600).
-								   '</span> ';
+	$addOther = '<span>'.&help_open_topic($topic,&mt($text),$stayOnPage, undef, 600).'</span> ';
     }
     $out = '<span>' # Start cheatsheet
 	  .$addOther
           .'<span>'
-	  .&Apache::loncommon::help_open_topic('Greek_Symbols',&mt('Greek Symbols'),
-					       undef,undef,600)
+	  .&help_open_topic('Greek_Symbols',&mt('Greek Symbols'),$stayOnPage,undef,600)
 	  .'</span> <span>'
-	  .&Apache::loncommon::help_open_topic('Other_Symbols',&mt('Other Symbols'),
-					       undef,undef,600)
+	  .&help_open_topic('Other_Symbols',&mt('Other Symbols'),$stayOnPage,undef,600)
 	  .'</span>';
     unless ($not_author) {
         $out .= ' <span>'
-	       .&Apache::loncommon::help_open_topic('Authoring_Output_Tags',&mt('Output Tags'),
-	                                            undef,undef,600)
+	       .&help_open_topic('Authoring_Output_Tags',&mt('Output Tags'),$stayOnPage,undef,600)
 	       .'</span>';
     }
     $out .= '</span>'; # End cheatsheet
@@ -6739,8 +6736,20 @@ sub headtag {
 	&& !$args->{'only_body'}
 	&& !$args->{'frameset'}) {
 	$result .= &help_menu_js();
+        $result.=&modal_window();
+        $result.=&togglebox_script();
+        $result.=&wishlist_window();
+    } else {
+        if ($args->{'add_modal'}) {
+           $result.=&modal_window();
+        }
+        if ($args->{'add_wishlist'}) {
+           $result.=&wishlist_window();
+        }
+        if ($args->{'add_togglebox'}) {
+           $result.=&togglebox_script();
+        }
     }
-    $result.=&modal_window();
     if (ref($args->{'redirect'})) {
 	my ($time,$url,$inhibit_continue) = @{$args->{'redirect'}};
 	$url = &Apache::lonenc::check_encrypt($url);
@@ -6954,6 +6963,28 @@ sub end_page {
     return $result;
 }
 
+sub wishlist_window {
+    return(<<'ENDWISHLIST');
+<script type="text/javascript" lang="javascript">
+// <![CDATA[
+// <!-- BEGIN LON-CAPA Internal
+function set_wishlistlink(title, path) {
+    if (!title) {
+        title = document.title;
+        title = title.replace(/^LON-CAPA /,'');
+    }
+    if (!path) {
+        path = location.pathname;
+    }
+    Win = window.open('/adm/wishlist?mode=newLink&setTitle='+title+'&setPath='+path,
+                      'wishlistNewLink','width=560,height=350,scrollbars=0');
+}
+// END LON-CAPA Internal -->
+// ]]>
+</script>
+ENDWISHLIST
+}
+
 sub modal_window {
     return(<<'ENDMODAL');
 <script type="text/javascript" lang="javascript">
@@ -6985,12 +7016,12 @@ var modalWindow = {
 		$(".LCmodal-overlay").click(function(){modalWindow.close();});
 	}
 };
-	var openMyModal = function(source,width,height)
+	var openMyModal = function(source,width,height,scrolling)
 	{
 		modalWindow.windowId = "myModal";
 		modalWindow.width = width;
 		modalWindow.height = height;
-		modalWindow.content = "<iframe width='"+width+"' height='"+height+"' frameborder='0' scrolling='no' allowtransparency='true' src='" + source + "'>&lt/iframe>";
+		modalWindow.content = "<iframe width='"+width+"' height='"+height+"' frameborder='0' scrolling='"+scrolling+"' allowtransparency='true' src='" + source + "'>&lt/iframe>";
 		modalWindow.open();
 	};	
 // END LON-CAPA Internal -->
@@ -7000,10 +7031,84 @@ ENDMODAL
 }
 
 sub modal_link {
-    my ($link,$linktext,$width,$height,$target)=@_;
+    my ($link,$linktext,$width,$height,$target,$scrolling)=@_;
     unless ($width) { $width=480; }
     unless ($height) { $height=400; }
-    return '<a href="'.$link.'" target="'.$target.'" onclick="openMyModal(\''.$link.'\','.$width.','.$height.'); return false;">'.$linktext.'</a>';
+    unless ($scrolling) { $scrolling='yes'; }
+    return '<a href="'.$link.'" target="'.$target.'" onclick="openMyModal(\''.$link.'\','.$width.','.$height.',\''.$scrolling.'\'); return false;">'.
+           $linktext.'</a>';
+}
+
+sub modal_adhoc_script {
+    my ($funcname,$width,$height,$content)=@_;
+    return (<<ENDADHOC);
+<script type="text/javascript" lang="javascript">
+// <![CDATA[
+        var $funcname = function()
+        {
+                modalWindow.windowId = "myModal";
+                modalWindow.width = $width;
+                modalWindow.height = $height;
+                modalWindow.content = '$content';
+                modalWindow.open();
+        };  
+// ]]>
+</script>
+ENDADHOC
+}
+
+sub togglebox_script {
+   return(<<ENDTOGGLE);
+<script type="text/javascript"> 
+// <![CDATA[
+function LCtoggleDisplay(id,hidetext,showtext) {
+   link = document.getElementById(id + "link").childNodes[0];
+   with (document.getElementById(id).style) {
+      if (display == "none" ) {
+          display = "inline";
+          link.nodeValue = hidetext;
+        } else {
+          display = "none";
+          link.nodeValue = showtext;
+       }
+   }
+}
+// ]]>
+</script>
+ENDTOGGLE
+}
+
+sub start_togglebox {
+    my ($id,$heading,$headerbg,$hidetext,$showtext)=@_;
+    unless ($heading) { $heading=''; } else { $heading.=' '; }
+    unless ($showtext) { $showtext=&mt('show'); }
+    unless ($hidetext) { $hidetext=&mt('hide'); }
+    unless ($headerbg) { $headerbg='#FFFFFF'; }
+    return &start_data_table().
+           &start_data_table_header_row().
+           '<td bgcolor="'.$headerbg.'">'.$heading.
+           '[<a id="'.$id.'link" href="javascript:LCtoggleDisplay(\''.$id.'\',\''.$hidetext.'\',\''.
+           $showtext.'\')">'.$showtext.'</a>]</td>'.
+           &end_data_table_header_row().
+           '<tr id="'.$id.'" style="display:none""><td>';
+}
+
+sub end_togglebox {
+    return '</td></tr>'.&end_data_table();
+}
+
+sub modal_adhoc_window {
+    my ($funcname,$width,$height,$content,$linktext)=@_;
+    my $innerwidth=$width-20;
+    $content=&js_ready(
+               &start_page('Dialog',undef,{'only_body'=>1,'bgcolor'=>'#FFFFFF'}).
+                 &start_scrollbox($width.'px',$innerwidth.'px',$height.'px').
+                    $content.
+                 &end_scrollbox().
+               &end_page()
+             );
+    return &modal_adhoc_script($funcname,$width,$height,$content).
+         "<a href=\"javascript:$funcname();void(0);\">".$linktext."</a>";
 }
 
 sub html_encode {
@@ -7064,7 +7169,7 @@ sub start_scrollbox {
 }
 
 sub end_scrollbox {
-    return '</td></tr></table>';
+    return '</div></td></tr></table>';
 }
 
 sub simple_error_page {
@@ -8343,7 +8448,8 @@ sub get_standard_codeitems {
 
 =item * sorted_slots()
 
-Sorts an array of slot names in order of slot start time (earliest first). 
+Sorts an array of slot names in order of an optional sort key,
+default sort is by slot start time (earliest first). 
 
 Inputs:
 
@@ -8353,15 +8459,16 @@ slotsarr  - Reference to array of unsort
 
 slots     - Reference to hash of hash, where outer hash keys are slot names.
 
+sortkey   - Name of key in inner hash to be sorted on (e.g., starttime).
+
 =back
 
 Returns:
 
 =over 4
 
-sorted   - An array of slot names sorted by the start time of the slot.
-
-=back
+sorted   - An array of slot names sorted by a specified sort key 
+           (default sort key is start time of the slot).
 
 =back
 
@@ -8369,13 +8476,16 @@ sorted   - An array of slot names sorted
 
 
 sub sorted_slots {
-    my ($slotsarr,$slots) = @_;
+    my ($slotsarr,$slots,$sortkey) = @_;
+    if ($sortkey eq '') {
+        $sortkey = 'starttime';
+    }
     my @sorted;
     if ((ref($slotsarr) eq 'ARRAY') && (ref($slots) eq 'HASH')) {
         @sorted =
             sort {
                      if (ref($slots->{$a}) && ref($slots->{$b})) {
-                         return $slots->{$a}{'starttime'} <=> $slots->{$b}{'starttime'}
+                         return $slots->{$a}{$sortkey} <=> $slots->{$b}{$sortkey}
                      }
                      if (ref($slots->{$a})) { return -1;}
                      if (ref($slots->{$b})) { return 1;}
@@ -8385,6 +8495,131 @@ sub sorted_slots {
     return @sorted;
 }
 
+=pod
+
+=item * get_future_slots()
+
+Inputs:
+
+=over 4
+
+cnum - course number
+
+cdom - course domain
+
+now - current UNIX time
+
+symb - optional symb
+
+=back
+
+Returns:
+
+=over 4
+
+sorted_reservable - ref to array of student_schedulable slots currently 
+                    reservable, ordered by end date of reservation period.
+
+reservable_now - ref to hash of student_schedulable slots currently
+                 reservable.
+
+    Keys in inner hash are:
+    (a) symb: either blank or symb to which slot use is restricted.
+    (b) endreserve: end date of reservation period. 
+
+sorted_future - ref to array of student_schedulable slots reservable in
+                the future, ordered by start date of reservation period.
+
+future_reservable - ref to hash of student_schedulable slots reservable
+                    in the future.
+
+    Keys in inner hash are:
+    (a) symb: either blank or symb to which slot use is restricted.
+    (b) startreserve:  start date of reservation period.
+
+=back
+
+=cut
+
+sub get_future_slots {
+    my ($cnum,$cdom,$now,$symb) = @_;
+    my (%reservable_now,%future_reservable,@sorted_reservable,@sorted_future);
+    my %slots = &Apache::lonnet::get_course_slots($cnum,$cdom);
+    foreach my $slot (keys(%slots)) {
+        next unless($slots{$slot}->{'type'} eq 'schedulable_student');
+        if ($symb) {
+            next if (($slots{$slot}->{'symb'} ne '') && 
+                     ($slots{$slot}->{'symb'} ne $symb));
+        }
+        if (($slots{$slot}->{'starttime'} > $now) &&
+            ($slots{$slot}->{'endtime'} > $now)) {
+            if (($slots{$slot}->{'allowedsections'}) || ($slots{$slot}->{'allowedusers'})) {
+                my $userallowed = 0;
+                if ($slots{$slot}->{'allowedsections'}) {
+                    my @allowed_sec = split(',',$slots{$slot}->{'allowedsections'});
+                    if (!defined($env{'request.role.sec'})
+                        && grep(/^No section assigned$/,@allowed_sec)) {
+                        $userallowed=1;
+                    } else {
+                        if (grep(/^\Q$env{'request.role.sec'}\E$/,@allowed_sec)) {
+                            $userallowed=1;
+                        }
+                    }
+                    unless ($userallowed) {
+                        if (defined($env{'request.course.groups'})) {
+                            my @groups = split(/:/,$env{'request.course.groups'});
+                            foreach my $group (@groups) {
+                                if (grep(/^\Q$group\E$/,@allowed_sec)) {
+                                    $userallowed=1;
+                                    last;
+                                }
+                            }
+                        }
+                    }
+                }
+                if ($slots{$slot}->{'allowedusers'}) {
+                    my @allowed_users = split(',',$slots{$slot}->{'allowedusers'});
+                    my $user = $env{'user.name'}.':'.$env{'user.domain'};
+                    if (grep(/^\Q$user\E$/,@allowed_users)) {
+                        $userallowed = 1;
+                    }
+                }
+                next unless($userallowed);
+            }
+            my $startreserve = $slots{$slot}->{'startreserve'};
+            my $endreserve = $slots{$slot}->{'endreserve'};
+            my $symb = $slots{$slot}->{'symb'};
+            if (($startreserve < $now) &&
+                (!$endreserve || $endreserve > $now)) {
+                my $lastres = $endreserve;
+                if (!$lastres) {
+                    $lastres = $slots{$slot}->{'starttime'};
+                }
+                $reservable_now{$slot} = {
+                                           symb       => $symb,
+                                           endreserve => $lastres
+                                         };
+            } elsif (($startreserve > $now) &&
+                     (!$endreserve || $endreserve > $startreserve)) {
+                $future_reservable{$slot} = {
+                                              symb         => $symb,
+                                              startreserve => $startreserve
+                                            };
+            }
+        }
+    }
+    my @unsorted_reservable = keys(%reservable_now);
+    if (@unsorted_reservable > 0) {
+        @sorted_reservable = 
+            &sorted_slots(\@unsorted_reservable,\%reservable_now,'endreserve');
+    }
+    my @unsorted_future = keys(%future_reservable);
+    if (@unsorted_future > 0) {
+        @sorted_future =
+            &sorted_slots(\@unsorted_future,\%future_reservable,'startreserve');
+    }
+    return (\@sorted_reservable,\%reservable_now,\@sorted_future,\%future_reservable);
+}
 
 =pod