src/hg/js/autocomplete.js 1.3

Index: src/hg/js/autocomplete.js
===================================================================
RCS file: /projects/compbio/cvsroot/kent/src/hg/js/autocomplete.js,v
retrieving revision 1.2
retrieving revision 1.3
diff -b -B -U 1000000 -r1.2 -r1.3
--- src/hg/js/autocomplete.js	9 Feb 2010 08:51:30 -0000	1.2
+++ src/hg/js/autocomplete.js	16 Feb 2010 01:27:05 -0000	1.3
@@ -1,50 +1,78 @@
 // support stuff for auto-complete using jquery.autocomplete.js
 //
 // requires ajax.js
 // requires utils.js
 
 var suggestCache;
 
 function ajaxGet(getDb, cache)
 {
 // Returns jquery.autocomplete.js ajax_get function object
 // getDb should be a function which returns the relevant assembly (e.g. "hg18")
 // cache is an optional object used as a hash to cache responses from the server.
     suggestCache = cache;
     return function (key, cont) {
         if(suggestCache == null || suggestCache[key] == null)
         {
             $.ajax({
                        url: "../cgi-bin/hgSuggest",
                        data: "db=" + getDb() + "&prefix=" + key,
                        // dataType: "json",  // XXXX this doesn't work under IE, so we retrieve as text and do an eval to force to an object.
                        trueSuccess: handleSuggest,
                        success: catchErrorOrDispatch,
                        error: function (request, status, errorThrown) {
                            if (typeof console != "undefined") {
                                console.dir(request);
                                console.log(status);
                            }
                            var msg = "ajax call failed";
                            if(status != "error")
                                msg = msg + "; error: " + status;
                            showWarning(msg + "; statusText: " + request.statusText + "; responseText: " + request.responseText);
                        },
                        key: key,
                        cont: cont
                    });
         } else {
             cont(eval(suggestCache[key]));
         }
         // showWarning(request.term);
     }
 }
 
 function handleSuggest(response, status)
 {
     // We seem to get a lot of duplicate requests (especially the first letters of words),
     // so we keep a cache of the suggestions lists we've retreived.
     if(suggestCache != null)
         suggestCache[this.key] = response;
     this.cont(eval(response));
 }
+
+function lookupGene(db, gene)
+{
+// returns coordinates for gene (requires an exact match).
+// Warning: this function does a synchronous ajax call.
+    // first look in our local cache.
+    if(suggestCache && suggestCache[gene]) {
+        var list = eval(suggestCache[gene]);
+        for(var i=0;i<list.length;i++) {
+            if(list[i].value == gene) {
+                return list[i].id;
+            }
+        }
+    }
+    // synchronously get match from the server
+    var str = $.ajax({
+                     url: "../cgi-bin/hgSuggest",
+                     data: "exact=1&db=" + db + "&prefix=" + gene,
+                     async: false
+                 }).responseText;
+    if(str) {
+        var obj = eval(str);
+        if(obj.length == 1) {
+            return obj[0].id;
+        }
+    }
+    return null;
+}