New feature:Support multiple words search

js/Plugin/jstree/hm.jstree.js

@@ -54,7 +54,24 @@
                 "multiple": false,
               },
               search: {
-                show_only_matches: true
+                show_only_matches: true,
+                "search_callback": function(str, node) {
+                  //search for any of the words entered
+                  var word, words = [];
+                  var searchFor = str.toLowerCase().replace(/^\s+/g, '').replace(/\s+$/g, '');
+                  if (searchFor.indexOf(' ') >= 0) {
+                    words = searchFor.split(' ');
+                  } else {
+                    words = [searchFor];
+                  }
+                  for (var i = 0; i < words.length; i++) {
+                    word = words[i];
+                    if ((node.text || "").toLowerCase().indexOf(word) >= 0) {
+                      return true;
+                    }
+                  }
+                  return false;
+                }
               },
               plugins: ["search", "dnd"]
             });