/*
* Retrieve events with a date query
*/

// Obtain a reference to the 'content' div
var content = document.getElementById('content');

// Create the calendar service object
var calendarService =
new google.gdata.calendar.CalendarService('com.appspot.interactivesampler');

// The "public/full" feed is used to retrieve events from the named public
// calendar with full projection.
var feedUri = 'http://www.google.com/calendar/feeds/developer-calendar%40google.com/public/full';

// Create a CalendarEventQuery, and specify that this query is
// applied toward the "private/full" feed
var query = new google.gdata.calendar.CalendarEventQuery(feedUri);

// Create and set the minimum and maximum start time for the date query
var startMin = google.gdata.DateTime.fromIso8601('2008-01-01T00:00:00.000-08:00');
var startMax = google.gdata.DateTime.fromIso8601('2008-07-01T00:00:00.000-08:00');
query.setMinimumStartTime(startMin);
query.setMaximumStartTime(startMax);

// The callback that will be called when getEventsFeed() returns feed data
var callback = function(root) {

// Obtain the array of matched CalendarEventEntry
var eventEntries = root.feed.getEntries();

// Print the query parameters
var fromDate = google.gdata.DateTime.toIso8601(startMin);
var toDate = google.gdata.DateTime.toIso8601(startMax);
var html = '
Date query: ' + fromDate + ' - '
+ toDate + '
';

// If there is matches for the date query
if (eventEntries.length > 0) {
html += '

'; for (var i = 0; i < eventEntries.length; i++) { var event = eventEntries[i]; // Print the event title of the matches html += '
• Event title: ' + event.getTitle().getText() + '
'; } html += '

';
} else {
// No match is found for the date query
html += '
No events are matched from the query!
';
}

// Output HTML and clear 'Loading...' text
content.innerHTML = html;
};

// Error handler to be invoked when getEventsFeed() produces an error
var handleError = function(error) {
content.innerHTML = '

' + error + '

';
};

// Submit the request using the calendar service object. Notice the CalendarEventQuery
// object is passed in place of the feed URI
calendarService.getEventsFeed(query, callback, handleError);