*
* ***** END LICENSE BLOCK ***** */
+// Get the best-available indexedDB object.
+var iDB = window.indexedDB || window.webkitIndexedDB || window.mozIndexedDB || window.msIndexedDB;
+var mainDB;
+window.onload = function() {
+ var mSel = document.getElementById("mapSelector");
+ for (var mapStyle in gMapStyles) {
+ var opt = document.createElement("option");
+ opt.value = mapStyle;
+ opt.text = gMapStyles[mapStyle].name;
+ mSel.add(opt, null);
+ }
+
+ initDB();
+ initMap();
+ resizeAndDraw();
+ startTracking();
+}
+
+window.onresize = function() {
+ resizeAndDraw();
+}
+
+function initDB() {
+ // Open DB.
+ var request = iDB.open("MainDB", 1);
+ request.onerror = function(event) {
+ // Errors can be handled here. Error codes explain in:
+ // https://developer.mozilla.org/en/IndexedDB/IDBDatabaseException#Constants
+ //document.getElementById("debug").textContent =
+ // "error opening mainDB: " + event.target.errorCode;
+ };
+ request.onsuccess = function(event) {
+ //document.getElementById("debug").textContent = "mainDB opened.";
+ mainDB = request.result;
+ };
+ request.onupgradeneeded = function(event) {
+ mainDB = request.result;
+ //document.getElementById("debug").textContent = "mainDB upgraded.";
+ // Create a "prefs" objectStore.
+ var prefsStore = mainDB.createObjectStore("prefs");
+ // Create a "track" objectStore.
+ var trackStore = mainDB.createObjectStore("track", {autoIncrement: true});
+ mainDB.onversionchange = function(event) {
+ mainDB.close();
+ mainDB = undefined;
+ initDB();
+ };
+ };
+}
+
+function toggleTrackArea() {
+ var fs = document.getElementById("trackArea");
+ if (fs.style.display != "block") {
+ fs.style.display = "block";
+ }
+ else {
+ fs.style.display = "none";
+ }
+}
+
+function toggleSettings() {
+ var fs = document.getElementById("settingsArea");
+ if (fs.style.display != "block") {
+ fs.style.display = "block";
+ }
+ else {
+ fs.style.display = "none";
+ }
+}
+
+function makeISOString(aTimestamp) {
+ // ISO time format is YYYY-MM-DDTHH:mm:ssZ
+ var tsDate = new Date(aTimestamp);
+ return tsDate.getUTCFullYear() + "-" +
+ (tsDate.getUTCMonth() < 10 ? "0" : "") + tsDate.getUTCMonth() + "-" +
+ (tsDate.getUTCDate() < 10 ? "0" : "") + tsDate.getUTCDate() + "T" +
+ (tsDate.getUTCHours() < 10 ? "0" : "") + tsDate.getUTCHours() + ":" +
+ (tsDate.getUTCMinutes() < 10 ? "0" : "") + tsDate.getUTCMinutes() + ":" +
+ (tsDate.getUTCSeconds() < 10 ? "0" : "") + tsDate.getUTCSeconds() + "Z";
+}
+
+function saveTrack() {
+ if (gTrack.length) {
+ var out = '<?xml version="1.0" encoding="UTF-8" ?>' + "\n\n";
+ out += '<gpx version="1.0" creator="Lantea" xmlns="http://www.topografix.com/GPX/1/0">' + "\n";
+ out += ' <trk>' + "\n";
+ out += ' <trkseg>' + "\n";
+ for (var i = 0; i < gTrack.length; i++) {
+ if (gTrack[i].beginSegment && i > 0) {
+ out += ' </trkseg>' + "\n";
+ out += ' <trkseg>' + "\n";
+ }
+ out += ' <trkpt lat="' + gTrack[i].coords.latitude + '" lon="' +
+ gTrack[i].coords.longitude + '">' + "\n";
+ if (gTrack[i].coords.altitude) {
+ out += ' <ele>' + gTrack[i].coords.altitude + '</ele>' + "\n";
+ }
+ out += ' <time>' + makeISOString(gTrack[i].time) + '</time>' + "\n";
+ out += ' </trkpt>' + "\n";
+ }
+ out += ' </trkseg>' + "\n";
+ out += ' </trk>' + "\n";
+ out += '</gpx>' + "\n";
+ var outDataURI = "data:application/octet-stream," + encodeURIComponent(out);
+ window.open(outDataURI, 'GPX Track');
+ }
+}
+
+var gPrefs = {
+ objStore: "prefs",
+
+ get: function(aKey, aCallback) {
+ if (!mainDB)
+ return;
+ var transaction = mainDB.transaction([this.objStore]);
+ var request = transaction.objectStore(this.objStore).get(aKey);
+ request.onsuccess = function(event) {
+ aCallback(request.result, event);
+ };
+ request.onerror = function(event) {
+ // Errors can be handled here.
+ aCallback(undefined, event);
+ };
+ },
+
+ set: function(aKey, aValue, aCallback) {
+ if (!mainDB)
+ return;
+ var success = false;
+ var transaction = mainDB.transaction([this.objStore],
+ IDBTransaction.READ_WRITE);
+ var objStore = transaction.objectStore(this.objStore);
+ var request = objStore.add(aValue, aKey);
+ request.onsuccess = function(event) {
+ success = true;
+ if (aCallback)
+ aCallback(success, event);
+ };
+ request.onerror = function(event) {
+ // Errors can be handled here.
+ if (aCallback)
+ aCallback(success, event);
+ };
+ },
+
+ unset: function(aKey, aCallback) {
+ if (!mainDB)
+ return;
+ var success = false;
+ var transaction = mainDB.transaction([this.objStore],
+ IDBTransaction.READ_WRITE);
+ var request = transaction.objectStore(this.objStore).delete(aKey);
+ request.onsuccess = function(event) {
+ success = true;
+ if (aCallback)
+ aCallback(success, event);
+ };
+ request.onerror = function(event) {
+ // Errors can be handled here.
+ if (aCallback)
+ aCallback(success, event);
+ }
+ }
+};
+
+var gTrackStore = {
+ objStore: "track",
+
+ getList: function(aCallback) {
+ if (!mainDB)
+ return;
+ var transaction = mainDB.transaction([this.objStore]);
+ var objStore = transaction.objectStore(this.objStore);
+ if (objStore.getAll) { // currently Mozilla-specific
+ objStore.getAll().onsuccess = function(event) {
+ aCallback(event.target.result);
+ };
+ }
+ else { // Use cursor (standard method).
+ var tPoints = [];
+ objStore.openCursor().onsuccess = function(event) {
+ var cursor = event.target.result;
+ if (cursor) {
+ tPoints.push(cursor.value);
+ cursor.continue();
+ }
+ else {
+ aCallback(tPoints);
+ }
+ };
+ }
+ },
+
+ push: function(aValue, aCallback) {
+ if (!mainDB)
+ return;
+ var transaction = mainDB.transaction([this.objStore],
+ IDBTransaction.READ_WRITE);
+ var objStore = transaction.objectStore(this.objStore);
+ var request = objStore.add(aValue);
+ request.onsuccess = function(event) {
+ if (aCallback)
+ aCallback(request.result, event);
+ };
+ request.onerror = function(event) {
+ // Errors can be handled here.
+ if (aCallback)
+ aCallback(false, event);
+ };
+ },
+
+ clear: function(aCallback) {
+ if (!mainDB)
+ return;
+ var success = false;
+ var transaction = mainDB.transaction([this.objStore],
+ IDBTransaction.READ_WRITE);
+ var request = transaction.objectStore(this.objStore).clear();
+ request.onsuccess = function(event) {
+ success = true;
+ if (aCallback)
+ aCallback(success, event);
+ };
+ request.onerror = function(event) {
+ // Errors can be handled here.
+ if (aCallback)
+ aCallback(success, event);
+ }
+ }
+};