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 currentFontSize = 14;

    11 var uiManager;

    12 var home;

    13 var mainView;

    14 var osconIcalUrl = new Array();

    15 var icalData = new Array();

    16 var icalReader = new Array();

    17 var osconDays = new Array();

    18 var http;

    19 var downloadDayIndex = -1;

    20 

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

    22 function init() {

    23 	

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

    25 		var osconDay = new Date()

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

    27 		osconDays.push(osconDay);

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

    29 		icalData.push(null);

    30 		icalReader.push(null);

    31 	}

    32 	

    33     // set tab-navigation mode and show softkeys

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

    35     if (window.widget) {

    36 		//create about menu

    37 	

    38         widget.setNavigationEnabled(false);

    39         menu.showSoftkeys();

    40     }

    41 	

    42 	// create UI manager

    43 	uiManager = new UIManager();

    44 

    45 	home = new ListView(null,null);

    46 	

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

    48 	// hack to center image

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

    50 	home.addControl(homeViewImage);

    51 

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

    53 	// hack to center image

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

    55 	home.addControl(homeViewImage2);

    56 	

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

    58 	

    59 	

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

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

    62 		mainView.addControl(button);

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

    64 			var clickedButton = event.source;

    65 			var clickedId = clickedButton.id;

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

    67 			});

    68 	}	

    69 	

    70 	home.previousView=mainView;

    71 	home.show();

    72 	

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

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

    75 }

    76 

    77 

    78 function showDay(dayIndex, date) {

    79 	downloadDayIndex = dayIndex;

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

    81 		downloadIcalData(dayIndex);

    82 	} else {

    83 		showList(date, null);

    84 	}

    85 }

    86 

    87 function downloadIcalData(dayIndex) {

    88 	downloadDayIndex = dayIndex;

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

    90 

    91 	http = new Ajax();

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

    93 

    94     // initiate the request

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

    96     http.send(null);

    97 }

    98 

    99 function downloadStateChanged(){

   100 	// complete request?

   101     if (http.readyState == 4) {

   102         // attempt to get response status

   103         var responseStatus = null;

   104         try {

   105             responseStatus = http.status;

   106         } catch (noStatusException) {}

   107         

   108 		// are we being prompted for login?

   109 		icalData[downloadDayIndex] = http.responseText;

   110 		try {

   111 			dataAvailable(downloadDayIndex);

   112 //			savePreferences();

   113 		}catch(x) {

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

   115 		}

   116 		downloadInProgress = false;

   117     }

   118 }

   119 

   120 function dataAvailable(downloadDayIndex){

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

   122 	// parse iCal

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

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

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

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

   127 	icalReader[downloadDayIndex] =  reader;

   128 	showList(osconDays[downloadDayIndex], null);

   129 	uiManager.hideNotification();

   130 }

   131 

   132 function showList(day, session) {

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

   134 	if (day) {

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

   136 		list.addControl(button);

   137 	}

   138 	if (session) {

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

   140 		list.addControl(button);

   141 	}

   142 	

   143 	var myCalReader = icalReader[downloadDayIndex];

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

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

   146 

   147 	var addedSessions = new Array();

   148 

   149 	

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

   151 	

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

   153 		

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

   155 		var startDate = event.getStartDate();

   156 		var altStartDate = null;

   157 		try {

   158 			altStartDate = event.getAltStartDate();

   159 		} catch(z) {

   160 			altStartDate = startDate; 

   161 		}

   162 		var timeZone = event.getTimeZone();

   163 		

   164 		if ( day ) {

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

   166 				continue;

   167 			} else {

   168 				var haveit = false;

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

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

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

   172 						haveit = true;

   173 						break;

   174 					}

   175 				}

   176 				if (!haveit) {

   177 					// add it

   178 					addedSessions.push(altStartDate);

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

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

   181 						var clickedButton = event.source;

   182 						var clickedId = clickedButton.id;

   183 						var ed = new Date();

   184 						ed.setTime(clickedId);

   185 						showList(null, ed);

   186 					});

   187 					list.addControl(button);

   188 				}

   189 				continue;

   190 			}

   191 		}

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

   193 			continue;

   194 		}

   195 

   196 

   197 		// add events

   198 		var endDate = event.getEndDate();

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

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

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

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

   203 

   204 		var buf = "";

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

   206 		if ( location != null ) {

   207 			buf += location + ", ";

   208 		}

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

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

   211 		if (url != null) {

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

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

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

   215             buf += "</a>";

   216 	        buf += "</div>";

   217 		}

   218 		

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

   220 

   221 		// initialize feed item control

   222 		cp.setCaption(summary);

   223 		cp.setContent(buf);

   224 		cp.setExpanded(false);

   225 		list.addControl(cp); 	

   226 	} // End for each event.

   227 	list.previousView = uiManager.currentView;

   228 	list.show();

   229 }

   230 

   231 

   232 // Loads widget preferences.

   233 function loadPreferences() {

   234     if (window.widget) {

   235         // load settings from widget preferences store

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

   237     }

   238 }

   239 

   240 // Loads widget preferences.

   241 function savePreferences() {

   242     if (window.widget) {

   243         // save settings in widget preferences store

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

   245     }

   246 }

   247 

   248 

   249 

   250 function setDefaultFontSizeForScreenSize(){

   251 	// first check if there is a preference present

   252     if (window.widget) {

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

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

   255 			setCssBodyFontSize(parseInt(saved));

   256 		}

   257 		else {

   258 			// no preference available, check screen size

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

   260 				// hi res screen, use large font

   261 				setCssBodyFontSize(18);

   262 			}

   263 			else {

   264 				// lo res screen, use small font

   265 				setCssBodyFontSize(14);

   266 			}

   267 		}

   268 	}

   269 }

   270 

   271 function increaseFontSize(){

   272     if (window.widget) {

   273 		setCssBodyFontSize(currentFontSize + 2);

   274 	}

   275 }

   276 

   277 function decreaseFontSize(){

   278     if (window.widget) {

   279 		if (currentFontSize > 4) {

   280 			setCssBodyFontSize(currentFontSize - 2);

   281 		}

   282 	}

   283 }

   284 

   285 function setCssBodyFontSize(size) {

   286     if (window.widget) {

   287 		currentFontSize = size;

   288 		var sizestring = "" + size;

   289 		document.body.style.fontSize = sizestring + "px";

   290 		widget.setPreferenceForKey(sizestring, "fontsize");

   291 	}

   292 }

   293 

   294 function nocache(url) {

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

   296         url += "?";

   297     } else {

   298         url += "&";

   299     }

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

   301 	return url;

   302 }

   303 

   304 

   305 function sessionMatches(session, startDate) {

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

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

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

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

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

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

   312 }

   313 

   314 function dayToString(day) {

   315 	return day.toDateString(); 	

   316 }

   317 

   318 function dayMatches(day, startDate){

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

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

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

   322 	return m_date && m_month && m_year; 

   323 }

   324 

   325 function sessionTimeToString(session) {

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

   327 }

   328 

   329 function dateToString(day) {

   330 	var full = day.toDateString();

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

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

   333 }

   334 

   335 function pad(num, digits) {

   336 	var str = "" + num;

   337 	while ( str.length < digits ) {

   338 		str = "0" + str;

   339 	}

   340 	return str;

   341 }

   342 

   343 // Opens a URL in a separate browser window

   344 function openURL(url) {

   345     if (window.widget) {

   346         // in WRT

   347         widget.openURL(url);

   348     } else {

   349         // outside WRT

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

   351     }

   352 }