restore defferedCall

lib/ace/lib/lang.js

@@ -144,9 +144,34 @@ exports.getMatchOffsets = function(string, regExp) {
 
 /* deprecated */
 exports.deferredCall = function(fcn) {
-    if (typeof console != "undefined" && console.error)
-        console.error("Deprecated: use lang.delayedCall")
-    return exports.delayedCall(fcn);
+
+    var timer = null;
+    var callback = function() {
+        timer = null;
+        fcn();
+    };
+
+    var deferred = function(timeout) {
+        deferred.cancel();
+        timer = setTimeout(callback, timeout || 0);
+        return deferred;
+    };
+
+    deferred.schedule = deferred;
+
+    deferred.call = function() {
+        this.cancel();
+        fcn();
+        return deferred;
+    };
+
+    deferred.cancel = function() {
+        clearTimeout(timer);
+        timer = null;
+        return deferred;
+    };
+
+    return deferred;
 };