--- loncom/interface/lonhtmlcommon.pm	2008/06/01 00:04:39	1.175
+++ loncom/interface/lonhtmlcommon.pm	2009/11/24 06:23:14	1.182.2.2
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common html routines
 #
-# $Id: lonhtmlcommon.pm,v 1.175 2008/06/01 00:04:39 raeburn Exp $
+# $Id: lonhtmlcommon.pm,v 1.182.2.2 2009/11/24 06:23:14 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -62,6 +62,60 @@ use Apache::lonlocal;
 use Apache::lonnet;
 use LONCAPA;
 
+
+##############################################
+##############################################
+
+=pod
+
+=item dragmath_button
+
+Creates a button that launches a dragmath popup-window, in which an 
+expression can be edited and pasted as LaTeX into a specified textarea. 
+
+  textarea - Name of the textarea to edit.
+  helpicon - If true, show a help icon to the right of the button.
+
+=cut
+
+sub dragmath_button {
+    my ($textarea,$helpicon) = @_;
+    my $help_text; 
+    if ($helpicon) {
+        $help_text = &Apache::loncommon::help_open_topic('Authoring_Math_Editor');
+    }
+    my $buttontext=&mt('Edit Math');
+    return <<ENDDRAGMATH;
+                <input type="button" value="$buttontext", onclick="javascript:mathedit('$textarea',document)" />$help_text
+ENDDRAGMATH
+}
+
+##############################################
+
+=pod
+
+=item dragmath_js
+
+Javascript used to open pop-up window containing dragmath applet which 
+can be used to paste LaTeX into a textarea.
+ 
+=cut
+
+sub dragmath_js {
+    my ($popup) = @_;
+    return <<ENDDRAGMATHJS;
+                <script type="text/javascript">
+                  function mathedit(textarea, doc) {
+                     targetEntry = textarea;
+                     targetDoc   = doc;
+                     newwin  = window.open("/adm/dragmath/applet/$popup.html","","width=565,height=500,resizable");
+                  }
+                </script>
+
+ENDDRAGMATHJS
+}
+
+
 ##############################################
 ##############################################
 
@@ -1038,7 +1092,7 @@ sub crumbs {
     my $output='';
     unless ($noformat) { $output.='<br /><tt><b>'; }
     $output.='<font size="'.$size.'">'.$prefix.'/';
-    if ($env{'user.adv'}) {
+    if (($env{'user.adv'}) || ($env{'user.author'})) {
 	my $path=$prefix.'/';
 	foreach my $dir (split('/',$uri)) {
             if (! $dir) { next; }
@@ -1224,6 +1278,9 @@ Inputs: $component (the large text on th
         $menulink (boolean, controls whether to include a link to /adm/menu)
         $helplink (if 'nohelp' don't include the orange help link)
         $css_class (optional name for the class to apply to the table for CSS)
+        $no_mt (optional flag, 1 if &mt() is _not_ to be applied to $component
+           when including the text on the right.
+
 Returns a string containing breadcrumbs for the current page.
 
 =item clear_breadcrumbs
@@ -1249,7 +1306,7 @@ returns: nothing
     my @Crumbs;
     
     sub breadcrumbs {
-        my ($component,$component_help,$menulink,$helplink,$css_class) = @_;
+        my ($component,$component_help,$menulink,$helplink,$css_class,$no_mt) = @_;
         #
 	$css_class ||= 'LC_breadcrumbs';
         my $Str = "\n".'<table class="'.$css_class.'"><tr><td>';
@@ -1258,6 +1315,8 @@ returns: nothing
         my $faq = '';
         my $bug = '';
 	my $help='';
+	# Crumb Symbol
+	my $crumbsymbol = ' &#x25b6; ';
         # The last breadcrumb does not have a link, so handle it separately.
         my $last = pop(@Crumbs);
         #
@@ -1281,7 +1340,7 @@ returns: nothing
                 });
         }
         my $links .= 
-            join('-&gt;',
+            join($crumbsymbol,
                  map {
                      $faq = $_->{'faq'} if (exists($_->{'faq'}));
                      $bug = $_->{'bug'} if (exists($_->{'bug'}));
@@ -1300,7 +1359,7 @@ returns: nothing
                      $result;
                      } @Crumbs
                  );
-        $links .= '-&gt;' if ($links ne '');
+        $links .= $crumbsymbol if ($links ne '');
 	if ($last->{'no_mt'}) {
 	    $links .= '<b>'.$last->{'text'}.'</b>';
 	} else {
@@ -1327,8 +1386,12 @@ returns: nothing
         $Str .= $links.'</td>';
         #
         if (defined($component)) {
-            $Str .= '<td class="'.$css_class.'_component">'.
-                &mt($component);
+            $Str .= '<td class="'.$css_class.'_component">';
+            if ($no_mt) {
+                $Str .= $component;
+            } else {
+                $Str .= &mt($component);
+            }
 	    if ($icons ne '') {
 		$Str .= '&nbsp;'.$icons;
 	    }
@@ -1429,6 +1492,13 @@ END
     return $output;
 }
 
+sub row_headline {
+    my $output = <<"END";
+           <tr><td colspan="2">
+END
+    return $output;
+}
+
 sub row_title {
     my ($title,$css_title_class,$css_value_class) = @_;
     $css_title_class ||= 'LC_pick_box_title';
@@ -1675,6 +1745,25 @@ sub course_custom_roles {
 
 ##############################################
 ##############################################
+
+# topic_bar
+#
+# Generates a div containing a numbered (static image) followed by a title
+# with a background color defined in the corresponding CSS: LC_topic_bar
+#
+sub topic_bar {
+    my ($imgnum,$title) = @_;
+    return '
+<div class="LC_topic_bar">
+    <img alt="'.&mt('Step [_1]',$imgnum).
+              '"src="/res/adm/pages/bl_step'.$imgnum.'.gif" />&nbsp;
+    <span>'.$title.'</span>
+</div>
+';
+}
+
+##############################################
+##############################################
                                                                              
 # echo_form_input
 #
@@ -1922,6 +2011,8 @@ END
     return $scripttag;
 }
 
+
+
 1;
 
 __END__