add function to detect always the timezone

apps/calendar/ajax/gettimezonedetection.php

@@ -0,0 +1,11 @@
+<?php
+/**
+ * Copyright (c) 2011, 2012 Georg Ehrke <ownclouddev at georgswebsite dot de>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+require_once ("../../../lib/base.php");
+OC_JSON::checkLoggedIn();
+OC_JSON::checkAppEnabled('calendar');
+OC_JSON::success(array('detection' => OC_Preferences::getValue(OC_USER::getUser(), 'calendar', 'timezonedetection')));

apps/calendar/ajax/guesstimezone.php

@@ -1,6 +1,6 @@
 <?php
 /**
- * Copyright (c) 2011 Georg Ehrke <ownclouddev at georgswebsite dot de>
+ * Copyright (c) 2011, 2012 Georg Ehrke <ownclouddev at georgswebsite dot de>
  * This file is licensed under the Affero General Public License version 3 or
  * later.
  * See the COPYING-README file.
@@ -24,10 +24,19 @@ OC_JSON::checkAppEnabled('calendar');
 $l = new OC_L10N('calendar');
 $lat = $_GET['lat'];
 $long = $_GET['long'];
+if(OC_Preferences::getValue(OC_USER::getUser(), 'calendar', 'position') == $lat . '-' . $long && OC_Preferences::getValue(OC_USER::getUser(), 'calendar', 'timezone') != null){
+	OC_JSON::success();
+	exit;
+}
+OC_Preferences::setValue(OC_USER::getUser(), 'calendar', 'position', $lat . '-' . $long);
 $geolocation = file_get_contents('http://ws.geonames.org/timezone?lat=' . $lat . '&lng=' . $long);
 //Information are by Geonames (http://www.geonames.org) and licensed under the Creative Commons Attribution 3.0 License
 $geoxml = simplexml_load_string($geolocation);
 $geoarray = make_array_out_of_xml($geoxml);
+if($geoarray['timezone']['timezoneId'] == OC_Preferences::getValue(OC_USER::getUser(), 'calendar', 'timezone')){
+	OC_JSON::success();
+	exit;
+}
 if(in_array($geoarray['timezone']['timezoneId'], DateTimeZone::listIdentifiers())){
 	OC_Preferences::setValue(OC_USER::getUser(), 'calendar', 'timezone', $geoarray['timezone']['timezoneId']);
 	$message = array('message'=> $l->t('New Timezone:') . $geoarray['timezone']['timezoneId']);
@@ -36,4 +45,4 @@ if(in_array($geoarray['timezone']['timezoneId'], DateTimeZone::listIdentifiers()
 	OC_JSON::error();
 }
 
-?>
+?>

apps/calendar/ajax/timezonedetection.php

@@ -0,0 +1,17 @@
+<?php
+/**
+ * Copyright (c) 2011, 2012 Georg Ehrke <ownclouddev at georgswebsite dot de>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+require_once ("../../../lib/base.php");
+OC_JSON::checkLoggedIn();
+OC_JSON::checkAppEnabled('calendar');
+if($_POST['timezonedetection'] == 'on'){
+	OC_Preferences::setValue(OC_USER::getUser(), 'calendar', 'timezonedetection', 'true');
+}else{
+	OC_Preferences::setValue(OC_USER::getUser(), 'calendar', 'timezonedetection', 'false');
+}
+OC_JSON::success();
+

apps/calendar/index.php

@@ -32,7 +32,7 @@ if(OC_Preferences::getValue(OC_USER::getUser(), 'calendar', 'currentview', 'mont
 
 OC_Util::addScript('3rdparty/fullcalendar', 'fullcalendar');
 OC_Util::addStyle('3rdparty/fullcalendar', 'fullcalendar');
-if(OC_Preferences::getValue(OC_USER::getUser(), "calendar", "timezone") == null){
+if(OC_Preferences::getValue(OC_USER::getUser(), "calendar", "timezone") == null || OC_Preferences::getValue(OC_USER::getUser(), 'calendar', 'timezonedetection') == 'true'){
 	OC_UTIL::addScript('calendar', 'geo');
 }
 OC_Util::addScript('calendar', 'calendar');

apps/calendar/js/geo.js

@@ -8,7 +8,7 @@ if (navigator.geolocation) {
 	navigator.geolocation.getCurrentPosition(function(position) {
 		$.getJSON(OC.filePath('calendar', 'ajax', 'guesstimezone.php?lat=' + position.coords.latitude + '&long=' + position.coords.longitude + ''),
 		function(data){
-			if (data.status == 'success'){
+			if (data.status == 'success' && typeof(data.message) != 'undefined'){
 				$('#notification').html(data.message);
 				$('#notification').attr('title', 'CC BY 3.0 by Geonames.org');
 				$('#notification').slideDown();

apps/calendar/js/settings.js

@@ -8,6 +8,12 @@ $(document).ready(function(){
 		});
 		return false;
 	});
+	$('#timezonedetection').change( function(){
+		var post = $('#timezonedetection').serialize();
+		$.post( OC.filePath('calendar', 'ajax', 'timezonedetection.php'), post, function(data){
+			
+		});
+	});
 	$("#timezone").chosen();
 	$("#firstdayofweek").change( function(){
 		var data = $("#firstdayofweek").serialize();
@@ -52,6 +58,11 @@ $(document).ready(function(){
 	$.getJSON(OC.filePath('calendar', 'ajax', 'duration.php'), function(jsondata, status) {
 		$("#duration").val(jsondata.duration);
 	});
+	$.getJSON(OC.filePath('calendar', 'ajax', 'gettimezonedetection.php'), function(jsondata, status){
+		if(jsondata.detection == 'true'){
+			$('#timezonedetection').attr('checked', 'checked');
+		}
+	});
 	$("#weekend").change( function(){
 		var data = $("#weekend").serialize();
 		$.post( OC.filePath('calendar', 'ajax', 'setdaysofweekend.php'), data, function(data){

apps/calendar/templates/settings.php

@@ -27,7 +27,7 @@
                     $continent=$ex[0];
                     echo '<option value="'.$timezone.'"'.($_['timezone'] == $timezone?' selected="selected"':'').'>'.$city.'</option>';
                 endforeach;?>
-            </select></td></tr>
+            </select><input type="checkbox" name="timezonedetection" id="timezonedetection"><label for="timezonedetection"><?php echo $l->t('Check always for changes of the timezone'); ?></label></td></tr>
 
             <tr><td><label for="timeformat" class="bold"><?php echo $l->t('Timeformat');?></label></td><td>
                 <select style="display: none;" id="timeformat" title="<?php echo "timeformat"; ?>" name="timeformat">