// Copyright (C) 2010 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.gerrit.client.ui;
import com.google.gwt.user.client.ui.SuggestOracle;
/** This class will proxy SuggestOracle requests to another SuggestOracle
* while keeping track of the latest request. Any repsonse that belongs
* to a request which is not the latest request will be dropped to prevent
* invalid deliveries.
*/
public class RPCSuggestOracle extends SuggestOracle {
private SuggestOracle oracle;
private SuggestOracle.Request request;
private SuggestOracle.Callback callback;
private SuggestOracle.Callback myCallback = new SuggestOracle.Callback() {
public void onSuggestionsReady(SuggestOracle.Request req,
SuggestOracle.Response response) {
if (request == req) {
callback.onSuggestionsReady(req, response);
request = null;
callback = null;
}
}
};
public RPCSuggestOracle(SuggestOracle ora) {
oracle = ora;
}
public void requestSuggestions(SuggestOracle.Request req,
SuggestOracle.Callback cb) {
request = req;
callback = cb;
oracle.requestSuggestions(req, myCallback);
}
public boolean isDisplayStringHTML() {
return oracle.isDisplayStringHTML();
}
}