| // Copyright (C) 2015 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.plugin.client.ui; |
| |
| import com.google.gerrit.client.rpc.NativeMap; |
| import com.google.gerrit.client.ui.HighlightSuggestion; |
| import com.google.gerrit.plugin.client.rpc.RestApi; |
| import com.google.gwt.core.client.JavaScriptObject; |
| import com.google.gwt.user.client.rpc.AsyncCallback; |
| import com.google.gwt.user.client.ui.SuggestOracle; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| /** A {@code SuggestOracle} for groups. */ |
| public class GroupSuggestOracle extends SuggestOracle { |
| |
| private final int chars; |
| |
| /** @param chars minimum chars to start suggesting. */ |
| public GroupSuggestOracle(int chars) { |
| this.chars = chars; |
| } |
| |
| @Override |
| public boolean isDisplayStringHTML() { |
| return true; |
| } |
| |
| @Override |
| public void requestSuggestions(Request req, Callback done) { |
| if (req.getQuery().length() < chars) { |
| responseEmptySuggestion(req, done); |
| return; |
| } |
| RestApi rest = new RestApi("/groups/").addParameter("suggest", req.getQuery()); |
| if (req.getLimit() > 0) { |
| rest.addParameter("n", req.getLimit()); |
| } |
| rest.get( |
| new AsyncCallback<NativeMap<JavaScriptObject>>() { |
| @Override |
| public void onSuccess(NativeMap<JavaScriptObject> result) { |
| List<String> keys = result.sortedKeys(); |
| List<Suggestion> suggestions = new ArrayList<>(keys.size()); |
| for (String g : keys) { |
| suggestions.add(new HighlightSuggestion(req.getQuery(), g)); |
| } |
| done.onSuggestionsReady(req, new Response(suggestions)); |
| } |
| |
| @Override |
| public void onFailure(Throwable caught) { |
| responseEmptySuggestion(req, done); |
| } |
| }); |
| } |
| |
| private static void responseEmptySuggestion(Request req, Callback done) { |
| List<Suggestion> empty = Collections.emptyList(); |
| done.onSuggestionsReady(req, new Response(empty)); |
| } |
| } |