org.unitime.timetable.gwt.client.rooms.PeriodPreferencesHint.java Source code

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Here is the source code for org.unitime.timetable.gwt.client.rooms.PeriodPreferencesHint.java

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/*
 * Licensed to The Apereo Foundation under one or more contributor license
 * agreements. See the NOTICE file distributed with this work for
 * additional information regarding copyright ownership.
 *
 * The Apereo Foundation licenses this file to you 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 org.unitime.timetable.gwt.client.rooms;

import org.unitime.timetable.gwt.client.GwtHint;
import org.unitime.timetable.gwt.command.client.GwtRpcService;
import org.unitime.timetable.gwt.command.client.GwtRpcServiceAsync;
import org.unitime.timetable.gwt.shared.RoomInterface;

import com.google.gwt.core.client.GWT;
import com.google.gwt.core.client.JavaScriptObject;
import com.google.gwt.dom.client.Element;
import com.google.gwt.user.client.rpc.AsyncCallback;

/**
 * @author Tomas Muller
 */
public class PeriodPreferencesHint {
    private static PeriodPreferencesWidget sSharing;
    private static Long sLastLocationId = null;
    private static boolean sShowHint = false;
    private static GwtRpcServiceAsync RPC = GWT.create(GwtRpcService.class);

    public static PeriodPreferencesWidget content(RoomInterface.PeriodPreferenceModel model) {
        if (sSharing == null)
            sSharing = new PeriodPreferencesWidget(false);
        sSharing.setModel(model);
        return sSharing;
    }

    /** Never use from GWT code */
    public static void _showPeriodPreferencesHint(JavaScriptObject source, String locationId, String examTypeId) {
        showHint((Element) source.cast(), toLong(locationId), toLong(examTypeId));
    }

    public static void _showExamPeriodPreferencesHint(JavaScriptObject source, String examId, String periodId) {
        showHintForExam((Element) source.cast(), toLong(examId), toLong(periodId));
    }

    public static void showHint(final Element relativeObject, final Long locationId, final Long examTypeId) {
        sLastLocationId = locationId;
        sShowHint = true;
        RPC.execute(RoomInterface.PeriodPreferenceRequest.load(locationId, examTypeId),
                new AsyncCallback<RoomInterface.PeriodPreferenceModel>() {
                    @Override
                    public void onFailure(Throwable caught) {
                    }

                    @Override
                    public void onSuccess(RoomInterface.PeriodPreferenceModel result) {
                        if (locationId.equals(sLastLocationId) && sShowHint && result != null
                                && !result.getPeriods().isEmpty())
                            GwtHint.showHint(relativeObject, content(result));
                    }
                });
    }

    public static void showHintForExam(final Element relativeObject, final Long examId, final Long periodId) {
        sLastLocationId = examId;
        sShowHint = true;
        RPC.execute(RoomInterface.PeriodPreferenceRequest.loadForExam(examId, null),
                new AsyncCallback<RoomInterface.PeriodPreferenceModel>() {
                    @Override
                    public void onFailure(Throwable caught) {
                    }

                    @Override
                    public void onSuccess(RoomInterface.PeriodPreferenceModel result) {
                        if (examId.equals(sLastLocationId) && sShowHint && result != null) {
                            if (periodId != null)
                                result.setAssignedPeriodId(periodId);
                            GwtHint.showHint(relativeObject, content(result));
                        }
                    }
                });
    }

    public static void hideHint() {
        sShowHint = false;
        GwtHint.hideHint();
    }

    public static native void createTriggers()/*-{
                                              $wnd.showGwtPeriodPreferencesHint = function(source, locationId, examTypeId) {
                                              @org.unitime.timetable.gwt.client.rooms.PeriodPreferencesHint::_showPeriodPreferencesHint(Lcom/google/gwt/core/client/JavaScriptObject;Ljava/lang/String;Ljava/lang/String;)(source, locationId, examTypeId);
                                              };
                                              $wnd.showGwtExamPeriodPreferencesHint = function(source, examId, periodId) {
                                              @org.unitime.timetable.gwt.client.rooms.PeriodPreferencesHint::_showExamPeriodPreferencesHint(Lcom/google/gwt/core/client/JavaScriptObject;Ljava/lang/String;Ljava/lang/String;)(source, examId, periodId);
                                              };
                                              $wnd.hideGwtPeriodPreferencesHint = function() {
                                              @org.unitime.timetable.gwt.client.rooms.PeriodPreferencesHint::hideHint()();
                                              };
                                              }-*/;

    private static Long toLong(String value) {
        try {
            return Long.valueOf(value);
        } catch (Exception e) {
            return null;
        }
    }

}