1 // ////////////////////////////////////////////////////////////////////////////

     2 // Symbian Foundation Example Code

     3 //

     4 // This software is in the public domain. No copyright is claimed, and you 

     5 // may use it for any purpose without license from the Symbian Foundation.

     6 // No warranty for any purpose is expressed or implied by the authors or

     7 // the Symbian Foundation. 

     8 // ////////////////////////////////////////////////////////////////////////////

     9 

    10 var uiManager;

    11 var home;

    12 var mainView;

    13 var osconIcalUrl = new Array();

    14 var icalData = new Array();

    15 var icalReader = new Array();

    16 var osconDays = new Array();

    17 var http;

    18 var downloadDayIndex = -1;

    19 

    20 // Called from the onload event handler to initialize the widget.

    21 function init() {

    22 	

    23 	for (var i = 0; i < 5; i++) {

    24 		var osconDay = new Date()

    25 		osconDay.setFullYear(2009, 6, 20 + i);

    26 		osconDays.push(osconDay);

    27 		osconIcalUrl.push("OSCON200907" + (20+i) + ".ics");

    28 		icalData.push(null);

    29 		icalReader.push(null);

    30 	}

    31 	

    32     // set tab-navigation mode and show softkeys

    33     // (only if we are in the WRT environment)

    34     if (window.widget) {

    35 		//create about menu

    36 	

    37         widget.setNavigationEnabled(false);

    38         menu.showSoftkeys();

    39     }

    40 	

    41 	// create UI manager

    42 	uiManager = new UIManager();

    43 

    44 	home = new ListView(null,null);

    45 	

    46 	var homeViewImage = new ImageLabel(null, null, "oscon-home.png");

    47 	// hack to center image

    48 	homeViewImage.contentElement.style.textAlign = "center";

    49 	home.addControl(homeViewImage);

    50 

    51 	var homeViewImage2 = new ImageLabel(null, null, "logo.png");

    52 	// hack to center image

    53 	homeViewImage2.contentElement.style.textAlign = "center";

    54 	home.addControl(homeViewImage2);

    55 	

    56 	mainView = new ListView(null, "<img src=oscon-home.png>");

    57 	

    58 	

    59 	for (var i = 0; i < osconDays.length; i++) {

    60 		var button = new NavigationButton(i, "day"+(i+1)+".png", dateToString(osconDays[i]));

    61 		mainView.addControl(button);

    62 		button.addEventListener("ActionPerformed", function(event){

    63 			var clickedButton = event.source;

    64 			var clickedId = clickedButton.id;

    65 			showDay(clickedId, osconDays[clickedId], null);

    66 			});

    67 	}	

    68 

    69 	home.show();

    70 	mainView.previousView = null;	

    71 	uiManager.showNotification(-1, "wait", "Please wait...", -1);

    72 	setTimeout(function(){	uiManager.hideNotification();mainView.show();}, 1000);

    73 }

    74 

    75 

    76 function showDay(dayIndex, date) {

    77 	downloadDayIndex = dayIndex;

    78 	if ( icalReader[dayIndex] == null ) {

    79 		setTimeout(function(){	downloadIcalData(downloadDayIndex);}, 100);

    80 	} else {

    81 		showList(date, null);

    82 	}

    83 }

    84 

    85 function downloadIcalData(dayIndex) {

    86 	downloadDayIndex = dayIndex;

    87 

    88 	http = new Ajax();

    89     http.onreadystatechange = function() { downloadStateChanged(); };

    90 

    91     // initiate the request

    92     http.open("GET", osconIcalUrl[downloadDayIndex], true);

    93     http.send(null);

    94 }

    95 

    96 function downloadStateChanged(){

    97 	// complete request?

    98     if (http.readyState == 4) {

    99         // attempt to get response status

   100         var responseStatus = null;

   101         try {

   102             responseStatus = http.status;

   103         } catch (noStatusException) {}

   104         

   105 		// are we being prompted for login?

   106 		icalData[downloadDayIndex] = http.responseText;

   107 		try {

   108 			dataAvailable(downloadDayIndex);

   109 //			savePreferences();

   110 		}catch(x) {

   111 			uiManager.showNotification(5000, "warning", "Error processing feed");

   112 		}

   113 		downloadInProgress = false;

   114     }

   115 }

   116 

   117 function dataAvailable(downloadDayIndex){

   118 	uiManager.showNotification(-1, "wait", "Parsing info...", -1);

   119 	// parse iCal

   120 	var reader = new iCalReader(); // Construction of the reader object.

   121 	reader.prepareData(icalData[downloadDayIndex]); // Prepare and set the data for the parser.

   122 	reader.parse(); // Parse the data.

   123 	reader.sort(); // Sort the data.

   124 	icalReader[downloadDayIndex] =  reader;

   125 	showList(osconDays[downloadDayIndex], null);

   126 	uiManager.hideNotification();

   127 }

   128 

   129 function showList(day, session) {

   130 	var list = new ListView(null, "<img src=oscon-home.png>");

   131 	if (day) {

   132 		var button = new ImageLabel(null, dateToString(day), "day"+(downloadDayIndex+1)+".png");

   133 		list.addControl(button);

   134 	}

   135 	if (session) {

   136 		var button = new ImageLabel(null, sessionTimeToString(session) + ", " + dateToString(session) , "session.png");

   137 		list.addControl(button);

   138 	}

   139 	

   140 	var myCalReader = icalReader[downloadDayIndex];

   141 	var events = myCalReader.getCalendar().getEvents(); // Get all events.

   142 	var num = myCalReader.getCalendar().getNrOfEvents();

   143 

   144 	var addedSessions = new Array();

   145 

   146 	

   147 	for(var i=0; i<num; i++) { // Loop through all events.

   148 	

   149 		var event = myCalReader.getCalendar().getEventAtIndex(i); // A single event.        

   150 		

   151 		// Get Javascript date for start and end time.

   152 		var startDate = event.getStartDate();

   153 		var altStartDate = null;

   154 		try {

   155 			altStartDate = event.getAltStartDate();

   156 		} catch(z) {

   157 			altStartDate = startDate; 

   158 		}

   159 		var timeZone = event.getTimeZone();

   160 		

   161 		if ( day ) {

   162 			if ( ! dayMatches(day, startDate) ) {

   163 				continue;

   164 			} else {

   165 				var haveit = false;

   166 				// if session is not in already, add it

   167 				for (var j = 0 ; j < addedSessions.length ; j++ ) {

   168 					if ( sessionMatches(addedSessions[j], altStartDate ) ) {

   169 						haveit = true;

   170 						break;

   171 					}

   172 				}

   173 				if (!haveit) {

   174 					// add it

   175 					addedSessions.push(altStartDate);

   176 					var button = new NavigationButton(altStartDate.getTime(), "session.png", "Session @ "+ sessionTimeToString(altStartDate));

   177 					button.addEventListener("ActionPerformed", function(event){

   178 						var clickedButton = event.source;

   179 						var clickedId = clickedButton.id;

   180 						var ed = new Date();

   181 						ed.setTime(clickedId);

   182 						showList(null, ed);

   183 					});

   184 					list.addControl(button);

   185 				}

   186 				continue;

   187 			}

   188 		}

   189 		else if ( ! sessionMatches(session, startDate) ) {

   190 			continue;

   191 		}

   192 

   193 

   194 		// add events

   195 		var endDate = event.getEndDate();

   196 		var location = event.getProperty("LOCATION");

   197 		var summary = event.getProperty("SUMMARY");

   198 		var description = event.getProperty("DESCRIPTION");

   199 		var url = event.getProperty("URL");

   200 

   201 		var buf = "";

   202 		buf += "<div class=\"FeedItemDate\">" ;

   203 		if ( location != null ) {

   204 			buf += location + ", ";

   205 		}

   206 		buf += sessionTimeToString(startDate) +"-" + sessionTimeToString(endDate) + " " + timeZone + "</div>";

   207 		buf += "<div class=\"FeedItemDescription\">" + description + "</div>";

   208 		if (url != null) {

   209 	        buf += "<div class=\"FeedItemLink\">";

   210             buf += "<a href=\"JavaScript:void(0)\" onclick=\"openURL('" + url + "'); return false;\">";

   211             buf += "Read more...";

   212             buf += "</a>";

   213 	        buf += "</div>";

   214 		}

   215 		

   216 		var cp = new ContentPanel(null, null, null, true);

   217 

   218 		// initialize feed item control

   219 		cp.setCaption(summary);

   220 		cp.setContent(buf);

   221 		cp.setExpanded(false);

   222 		list.addControl(cp); 	

   223 	} // End for each event.

   224 	list.previousView = uiManager.currentView;

   225 	mainView.previousView = null;

   226 	list.show();

   227 }

   228 

   229 

   230 // Loads widget preferences.

   231 function loadPreferences() {

   232     if (window.widget) {

   233         // load settings from widget preferences store

   234         icalData = widget.preferenceForKey("icalData");

   235     }

   236 }

   237 

   238 // Loads widget preferences.

   239 function savePreferences() {

   240     if (window.widget) {

   241         // save settings in widget preferences store

   242         widget.setPreferenceForKey(icalData, "icalData");

   243     }

   244 }

   245 

   246 

   247 

   248 function setDefaultFontSizeForScreenSize(){

   249 	// first check if there is a preference present

   250     if (window.widget) {

   251 		var saved = widget.preferenceForKey("fontsize");

   252 		if ( widget.preferenceForKey("fontsize") ) {

   253 			setCssBodyFontSize(parseInt(saved));

   254 		}

   255 		else {

   256 			// no preference available, check screen size

   257 			if (window.screen.width > 400 || window.screen.height > 400) {

   258 				// hi res screen, use large font

   259 				setCssBodyFontSize(18);

   260 			}

   261 			else {

   262 				// lo res screen, use small font

   263 				setCssBodyFontSize(14);

   264 			}

   265 		}

   266 	}

   267 }

   268 

   269 

   270 function nocache(url) {

   271     if (url.indexOf("?") == -1) {

   272         url += "?";

   273     } else {

   274         url += "&";

   275     }

   276     url += "nocache=" + (new Date().getTime());

   277 	return url;

   278 }

   279 

   280 

   281 function sessionMatches(session, startDate) {

   282 	var m_date = session.getDate()==startDate.getDate();

   283 	var m_year = session.getFullYear()==startDate.getFullYear();

   284 	var m_month = session.getMonth()==startDate.getMonth();

   285 	var m_hour = session.getHours()==startDate.getHours();

   286 	var m_minute = session.getMinutes()==startDate.getMinutes();

   287 	return m_date && m_month && m_year && m_hour && m_minute; 

   288 }

   289 

   290 function dayToString(day) {

   291 	return day.toDateString(); 	

   292 }

   293 

   294 function dayMatches(day, startDate){

   295 	var m_date = day.getDate()==startDate.getDate();

   296 	var m_year = day.getFullYear()==startDate.getFullYear();

   297 	var m_month = day.getMonth()==startDate.getMonth();

   298 	return m_date && m_month && m_year; 

   299 }

   300 

   301 function sessionTimeToString(session) {

   302 	return ""+session.getHours()+":"+pad(session.getMinutes(),2); 	

   303 }

   304 

   305 function dateToString(day) {

   306 	var full = day.toDateString();

   307 	// remove year as it doesn't fit on small screens

   308 	return full.substring(0, full.length-4); 	

   309 }

   310 

   311 function pad(num, digits) {

   312 	var str = "" + num;

   313 	while ( str.length < digits ) {

   314 		str = "0" + str;

   315 	}

   316 	return str;

   317 }

   318 

   319 // Opens a URL in a separate browser window

   320 function openURL(url) {

   321     if (window.widget) {

   322         // in WRT

   323         widget.openURL(url);

   324     } else {

   325         // outside WRT

   326         window.open(url, "NewWindow");

   327     }

   328 }

   329