001    package org.gwtbootstrap3.extras.typeahead.client.base;
002    
003    /*
004     * #%L
005     * GwtBootstrap3
006     * %%
007     * Copyright (C) 2013 - 2014 GwtBootstrap3
008     * %%
009     * Licensed under the Apache License, Version 2.0 (the "License");
010     * you may not use this file except in compliance with the License.
011     * You may obtain a copy of the License at
012     * 
013     *      http://www.apache.org/licenses/LICENSE-2.0
014     * 
015     * Unless required by applicable law or agreed to in writing, software
016     * distributed under the License is distributed on an "AS IS" BASIS,
017     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
018     * See the License for the specific language governing permissions and
019     * limitations under the License.
020     * #L%
021     */
022    
023    
024    import com.google.gwt.core.client.JavaScriptObject;
025    import com.google.gwt.core.client.JsArray;
026    import com.google.gwt.core.client.JsArrayString;
027    
028    import java.util.Collection;
029    
030    /**
031     * @author Florian Kremser <florian.kremser@sage.com>
032     */
033    public class SuggestionCallback<T> {
034        private final JavaScriptObject jsCallback;
035    
036        public SuggestionCallback(final JavaScriptObject jsCallback) {
037            this.jsCallback = jsCallback;
038        }
039    
040        public void execute(final Collection<Suggestion<T>> suggestions) {
041            JsArray<Suggestion<T>> jsArray = JsArrayString.createArray().cast();
042            if (suggestions != null) {
043                for (Suggestion<T> s : suggestions) {
044                    jsArray.push(s);
045                }
046            }
047            invokeCallback(jsCallback, jsArray);
048        }
049    
050        private native void invokeCallback(JavaScriptObject callback, JsArray<Suggestion<T>> matches) /*-{
051            callback(matches);
052        }-*/;
053    }