| // Copyright (C) 2012 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.gerrit.client.Gerrit; |
| import com.google.gwtexpui.safehtml.client.HighlightSuggestOracle; |
| import java.util.Collections; |
| import java.util.List; |
| |
| /** |
| * Suggest oracle that only provides suggestions if the user has typed at least as many characters |
| * as configured by 'suggest.from'. If 'suggest.from' is set to 0, suggestions will always be |
| * provided. |
| */ |
| public abstract class SuggestAfterTypingNCharsOracle extends HighlightSuggestOracle { |
| |
| @Override |
| protected void onRequestSuggestions(Request req, Callback cb) { |
| if (req.getQuery() != null && req.getQuery().length() >= Gerrit.info().suggest().from()) { |
| _onRequestSuggestions(req, cb); |
| } else { |
| List<Suggestion> none = Collections.emptyList(); |
| cb.onSuggestionsReady(req, new Response(none)); |
| } |
| } |
| |
| protected abstract void _onRequestSuggestions(Request request, Callback done); |
| } |