Fix expand/collapse directory icons in tree view

Author: doxygen

templates/html/dynsections.js

@@ -57,7 +57,12 @@ let dynsection = {
   toggleLevel : function(level) {
     $('table.directory tr').each(function() {
       const l = this.id.split('_').length-1;
-      if (l<=level+1) {
+      const i = $('#img'+this.id.substring(3));
+      if (l<level+1) {
+        i.removeClass('iconfopen iconfclosed').addClass('iconfopen');
+        $(this).show();
+      } else if (l==level+1) {
+        i.removeClass('iconfclosed iconfopen').addClass('iconfclosed');
         $(this).show();
       } else {
         $(this).hide();
@@ -82,14 +87,17 @@ let dynsection = {
     if (childRows.filter(':first').is(':visible')===true) {
       // replace down arrow by right arrow for current row
       const currentRowSpans = currentRow.find("span");
+      currentRowSpans.filter(".iconfopen").removeClass("iconfopen").addClass("iconfclosed");
       currentRowSpans.filter(".opened").removeClass("opened").addClass("closed");
       rows.filter("[id^=row_"+id+"]").hide(); // hide all children
     } else { // we are SHOWING
       // replace right arrow by down arrow for current row
       const currentRowSpans = currentRow.find("span");
+      currentRowSpans.filter(".iconfclosed").removeClass("iconfclosed").addClass("iconfopen");
       currentRowSpans.filter(".closed").removeClass("closed").addClass("opened");
       // replace down arrows by right arrows for child rows
       const childRowsSpans = childRows.find("span");
+      childRowsSpans.filter(".iconfopen").removeClass("iconfopen").addClass("iconfclosed");
       childRowsSpans.filter(".opened").removeClass("opened").addClass("closed");
       childRows.show(); //show all children
     }