net.ftlines.wicket.fullcalendar.callback.DateRangeSelectedCallback.java Source code

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Here is the source code for net.ftlines.wicket.fullcalendar.callback.DateRangeSelectedCallback.java

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/**
 * 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 net.ftlines.wicket.fullcalendar.callback;

import net.ftlines.wicket.fullcalendar.CalendarResponse;

import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.model.AbstractReadOnlyModel;
import org.apache.wicket.model.IModel;
import org.apache.wicket.request.Request;
import org.joda.time.DateTime;
import org.joda.time.DateTimeZone;

public abstract class DateRangeSelectedCallback extends AbstractAjaxCallback implements CallbackWithHandler {
    private static final long serialVersionUID = 7927720428216612850L;
    private final boolean ignoreTimezone;

    /**
     * If <var>ignoreTimezone</var> is {@code true}, then the remote client\"s time zone will be ignored when
     * determining the selected date range, resulting in a range with the selected start and end values, but in the
     * server\"s time zone.
     * 
     * @param ignoreTimezone
     *            whether or not to ignore the remote client\"s time zone when determining the selected date range
     */
    public DateRangeSelectedCallback(final boolean ignoreTimezone) {
        this.ignoreTimezone = ignoreTimezone;
    }

    @Override
    protected String configureCallbackScript(final String script, final String urlTail) {
        return script.replace(urlTail,
                "&timezoneOffset=\"+startDate.getTimezoneOffset()+\"&startDate=\"+startDate.getTime()+\"&endDate=\"+endDate.getTime()+\"&allDay=\"+allDay+\"");
    }

    @Override
    public IModel<String> getHandlerScript() {
        return new AbstractReadOnlyModel<String>() {
            private static final long serialVersionUID = 4021933370930781184L;

            /**
             * @see org.apache.wicket.model.AbstractReadOnlyModel#getObject()
             */
            @Override
            public String getObject() {
                return "function(startDate, endDate, allDay) { " + getCallbackScript() + "}";
            }
        };
    }

    @Override
    protected void respond(final AjaxRequestTarget target) {
        final Request r = getCalendar().getRequest();

        DateTime start = new DateTime(r.getRequestParameters().getParameterValue("startDate").toLong());
        DateTime end = new DateTime(r.getRequestParameters().getParameterValue("endDate").toLong());

        if (ignoreTimezone) {
            // Convert to same DateTime in local time zone.
            final int remoteOffset = -r.getRequestParameters().getParameterValue("timezoneOffset").toInt();
            final int localOffset = DateTimeZone.getDefault().getOffset(null) / 60000;
            final int minutesAdjustment = remoteOffset - localOffset;
            start = start.plusMinutes(minutesAdjustment);
            end = end.plusMinutes(minutesAdjustment);
        }
        final boolean allDay = r.getRequestParameters().getParameterValue("allDay").toBoolean();
        onSelect(new SelectedRange(start, end, allDay), new CalendarResponse(getCalendar(), target));

    }

    protected abstract void onSelect(SelectedRange range, CalendarResponse response);

}