Commit | Line | Data |
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a7393a71 RK |
1 | /* This Source Code Form is subject to the terms of the Mozilla Public |
2 | * License, v. 2.0. If a copy of the MPL was not distributed with this file, | |
3 | * You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
23cd2dcc | 4 | |
993fd081 | 5 | // Get the best-available indexedDB object. |
3d99a6fd | 6 | window.indexedDB = window.indexedDB || window.webkitIndexedDB || window.mozIndexedDB || window.msIndexedDB; |
993fd081 RK |
7 | var mainDB; |
8 | ||
7a549148 | 9 | var gUIHideCountdown = 0; |
4b1d0915 | 10 | var gWaitCounter = 0; |
68afcd96 | 11 | var gAction, gActionLabel; |
c4d0569c | 12 | var gOSMAPIURL = "http://api.openstreetmap.org/"; |
7a549148 | 13 | |
b47b4a65 | 14 | window.onload = function() { |
68afcd96 RK |
15 | gAction = document.getElementById("action"); |
16 | gActionLabel = document.getElementById("actionlabel"); | |
17 | ||
b47b4a65 RK |
18 | var mSel = document.getElementById("mapSelector"); |
19 | for (var mapStyle in gMapStyles) { | |
20 | var opt = document.createElement("option"); | |
21 | opt.value = mapStyle; | |
22 | opt.text = gMapStyles[mapStyle].name; | |
23 | mSel.add(opt, null); | |
24 | } | |
23cd2dcc | 25 | |
7a549148 RK |
26 | var areas = document.getElementsByClassName('overlayArea'); |
27 | for (var i = 0; i <= areas.length - 1; i++) { | |
28 | areas[i].addEventListener("mouseup", uiEvHandler, false); | |
29 | areas[i].addEventListener("mousemove", uiEvHandler, false); | |
30 | areas[i].addEventListener("mousedown", uiEvHandler, false); | |
31 | areas[i].addEventListener("mouseout", uiEvHandler, false); | |
32 | ||
33 | areas[i].addEventListener("touchstart", uiEvHandler, false); | |
34 | areas[i].addEventListener("touchmove", uiEvHandler, false); | |
35 | areas[i].addEventListener("touchend", uiEvHandler, false); | |
36 | areas[i].addEventListener("touchcancel", uiEvHandler, false); | |
37 | areas[i].addEventListener("touchleave", uiEvHandler, false); | |
38 | } | |
39 | ||
1222624d RK |
40 | document.getElementById("body").addEventListener("keydown", uiEvHandler, false); |
41 | ||
8e901dce | 42 | if (navigator.platform.length == "") { |
b91b74a7 RK |
43 | // For Firefox OS, don't display the "save" button. |
44 | // Do this by setting the debugHide class for testing in debug mode. | |
45 | document.getElementById("saveTrackButton").classList.add("debugHide"); | |
c4d0569c RK |
46 | } |
47 | ||
43255174 RK |
48 | // Without OAuth, the login data is useless |
49 | //document.getElementById("uploadSettingsArea").classList.remove("debugHide"); | |
50 | // As login data is useless for now, always enable upload button | |
51 | document.getElementById("uploadTrackButton").disabled = false; | |
52 | ||
c4d0569c | 53 | if (gDebug) { |
43255174 | 54 | // Note that GPX upload returns an error 500 on the dev API right now. |
c4d0569c | 55 | gOSMAPIURL = "http://api06.dev.openstreetmap.org/"; |
b91b74a7 | 56 | } |
7a549148 | 57 | |
582d50fc RK |
58 | gAction.addEventListener("dbinit-done", initMap, false); |
59 | gAction.addEventListener("mapinit-done", postInit, false); | |
60 | console.log("starting DB init..."); | |
993fd081 | 61 | initDB(); |
582d50fc | 62 | } |
4b1d0915 | 63 | |
582d50fc RK |
64 | function postInit(aEvent) { |
65 | gAction.removeEventListener(aEvent.type, postInit, false); | |
66 | console.log("init done, draw map."); | |
67 | gMapPrefsLoaded = true; | |
68 | resizeAndDraw(); | |
69 | gActionLabel.textContent = ""; | |
70 | gAction.style.display = "none"; | |
71 | setTracking(document.getElementById("trackCheckbox")); | |
72 | gPrefs.get(gDebug ? "osm_dev_user" : "osm_user", function(aValue) { | |
73 | if (aValue) { | |
74 | document.getElementById("uploadUser").value = aValue; | |
75 | document.getElementById("uploadTrackButton").disabled = false; | |
4b1d0915 | 76 | } |
582d50fc RK |
77 | }); |
78 | gPrefs.get(gDebug ? "osm_dev_pwd" : "osm_pwd", function(aValue) { | |
79 | var upwd = document.getElementById("uploadPwd"); | |
80 | if (aValue) | |
81 | document.getElementById("uploadPwd").value = aValue; | |
82 | }); | |
b47b4a65 RK |
83 | } |
84 | ||
85 | window.onresize = function() { | |
86 | resizeAndDraw(); | |
87 | } | |
88 | ||
582d50fc | 89 | function initDB(aEvent) { |
993fd081 | 90 | // Open DB. |
582d50fc RK |
91 | if (aEvent) |
92 | gAction.removeEventListener(aEvent.type, initDB, false); | |
1222624d | 93 | var request = window.indexedDB.open("MainDB-lantea", 2); |
993fd081 RK |
94 | request.onerror = function(event) { |
95 | // Errors can be handled here. Error codes explain in: | |
96 | // https://developer.mozilla.org/en/IndexedDB/IDBDatabaseException#Constants | |
915d4271 RK |
97 | if (gDebug) |
98 | console.log("error opening mainDB: " + event.target.errorCode); | |
993fd081 RK |
99 | }; |
100 | request.onsuccess = function(event) { | |
993fd081 | 101 | mainDB = request.result; |
582d50fc RK |
102 | var throwEv = new CustomEvent("dbinit-done"); |
103 | gAction.dispatchEvent(throwEv); | |
993fd081 RK |
104 | }; |
105 | request.onupgradeneeded = function(event) { | |
106 | mainDB = request.result; | |
a8634d37 | 107 | var ver = mainDB.version || 0; // version is empty string for a new DB |
915d4271 RK |
108 | if (gDebug) |
109 | console.log("mainDB has version " + ver + ", upgrade needed."); | |
110 | if (!mainDB.objectStoreNames.contains("prefs")) { | |
a8634d37 RK |
111 | // Create a "prefs" objectStore. |
112 | var prefsStore = mainDB.createObjectStore("prefs"); | |
915d4271 RK |
113 | } |
114 | if (!mainDB.objectStoreNames.contains("track")) { | |
a8634d37 RK |
115 | // Create a "track" objectStore. |
116 | var trackStore = mainDB.createObjectStore("track", {autoIncrement: true}); | |
117 | } | |
915d4271 | 118 | if (!mainDB.objectStoreNames.contains("tilecache")) { |
a8634d37 RK |
119 | // Create a "tilecache" objectStore. |
120 | var tilecacheStore = mainDB.createObjectStore("tilecache"); | |
121 | } | |
993fd081 RK |
122 | mainDB.onversionchange = function(event) { |
123 | mainDB.close(); | |
124 | mainDB = undefined; | |
125 | initDB(); | |
126 | }; | |
127 | }; | |
128 | } | |
129 | ||
7a549148 RK |
130 | function showUI() { |
131 | if (gUIHideCountdown <= 0) { | |
132 | var areas = document.getElementsByClassName('overlayArea'); | |
133 | for (var i = 0; i <= areas.length - 1; i++) { | |
134 | areas[i].classList.remove("hidden"); | |
135 | } | |
136 | setTimeout(maybeHideUI, 1000); | |
137 | } | |
138 | gUIHideCountdown = 5; | |
139 | } | |
140 | ||
141 | function maybeHideUI() { | |
142 | gUIHideCountdown--; | |
143 | if (gUIHideCountdown <= 0) { | |
144 | var areas = document.getElementsByClassName('overlayArea'); | |
145 | for (var i = 0; i <= areas.length - 1; i++) { | |
146 | areas[i].classList.add("hidden"); | |
147 | } | |
148 | } | |
149 | else { | |
150 | setTimeout(maybeHideUI, 1000); | |
151 | } | |
152 | } | |
153 | ||
993fd081 RK |
154 | function toggleTrackArea() { |
155 | var fs = document.getElementById("trackArea"); | |
156 | if (fs.style.display != "block") { | |
157 | fs.style.display = "block"; | |
7a549148 | 158 | showUI(); |
993fd081 RK |
159 | } |
160 | else { | |
161 | fs.style.display = "none"; | |
162 | } | |
163 | } | |
164 | ||
b47b4a65 | 165 | function toggleSettings() { |
993fd081 | 166 | var fs = document.getElementById("settingsArea"); |
b47b4a65 RK |
167 | if (fs.style.display != "block") { |
168 | fs.style.display = "block"; | |
7a549148 | 169 | showUI(); |
b47b4a65 RK |
170 | } |
171 | else { | |
172 | fs.style.display = "none"; | |
173 | } | |
174 | } | |
99631a75 | 175 | |
c5378747 RK |
176 | function toggleFullscreen() { |
177 | if ((document.fullScreenElement && document.fullScreenElement !== null) || | |
178 | (document.mozFullScreenElement && document.mozFullScreenElement !== null) || | |
179 | (document.webkitFullScreenElement && document.webkitFullScreenElement !== null)) { | |
180 | if (document.cancelFullScreen) { | |
181 | document.cancelFullScreen(); | |
182 | } else if (document.mozCancelFullScreen) { | |
183 | document.mozCancelFullScreen(); | |
184 | } else if (document.webkitCancelFullScreen) { | |
185 | document.webkitCancelFullScreen(); | |
186 | } | |
187 | } | |
188 | else { | |
189 | var elem = document.getElementById("body"); | |
190 | if (elem.requestFullScreen) { | |
191 | elem.requestFullScreen(); | |
192 | } else if (elem.mozRequestFullScreen) { | |
193 | elem.mozRequestFullScreen(); | |
194 | } else if (elem.webkitRequestFullScreen) { | |
195 | elem.webkitRequestFullScreen(); | |
196 | } | |
197 | } | |
198 | } | |
199 | ||
43255174 RK |
200 | function showUploadDialog() { |
201 | var dia = document.getElementById("dialogArea"); | |
202 | var areas = dia.children; | |
203 | for (var i = 0; i <= areas.length - 1; i++) { | |
204 | areas[i].style.display = "none"; | |
205 | } | |
206 | document.getElementById("uploadDialog").style.display = "block"; | |
207 | document.getElementById("uploadTrackButton").disabled = true; | |
208 | dia.classList.remove("hidden"); | |
209 | } | |
210 | ||
211 | function cancelDialog() { | |
212 | document.getElementById("dialogArea").classList.add("hidden"); | |
213 | document.getElementById("uploadTrackButton").disabled = false; | |
214 | } | |
215 | ||
7a549148 RK |
216 | var uiEvHandler = { |
217 | handleEvent: function(aEvent) { | |
218 | var touchEvent = aEvent.type.indexOf('touch') != -1; | |
219 | ||
220 | switch (aEvent.type) { | |
221 | case "mousedown": | |
222 | case "touchstart": | |
223 | case "mousemove": | |
224 | case "touchmove": | |
225 | case "mouseup": | |
226 | case "touchend": | |
1222624d | 227 | case "keydown": |
7a549148 RK |
228 | showUI(); |
229 | break; | |
230 | } | |
231 | } | |
232 | }; | |
233 | ||
8389557a RK |
234 | function setUploadField(aField) { |
235 | switch (aField.id) { | |
236 | case "uploadUser": | |
c4d0569c | 237 | gPrefs.set(gDebug ? "osm_dev_user" : "osm_user", aField.value); |
8389557a RK |
238 | document.getElementById("uploadTrackButton").disabled = !aField.value.length; |
239 | break; | |
240 | case "uploadPwd": | |
c4d0569c | 241 | gPrefs.set(gDebug ? "osm_dev_pwd" : "osm_pwd", aField.value); |
8389557a RK |
242 | break; |
243 | } | |
244 | } | |
245 | ||
99631a75 RK |
246 | function makeISOString(aTimestamp) { |
247 | // ISO time format is YYYY-MM-DDTHH:mm:ssZ | |
248 | var tsDate = new Date(aTimestamp); | |
362a6833 | 249 | // Note that .getUTCMonth() returns a number between 0 and 11 (0 for January)! |
99631a75 | 250 | return tsDate.getUTCFullYear() + "-" + |
362a6833 | 251 | (tsDate.getUTCMonth() < 9 ? "0" : "") + (tsDate.getUTCMonth() + 1 ) + "-" + |
99631a75 RK |
252 | (tsDate.getUTCDate() < 10 ? "0" : "") + tsDate.getUTCDate() + "T" + |
253 | (tsDate.getUTCHours() < 10 ? "0" : "") + tsDate.getUTCHours() + ":" + | |
254 | (tsDate.getUTCMinutes() < 10 ? "0" : "") + tsDate.getUTCMinutes() + ":" + | |
255 | (tsDate.getUTCSeconds() < 10 ? "0" : "") + tsDate.getUTCSeconds() + "Z"; | |
256 | } | |
257 | ||
8389557a RK |
258 | function convertTrack(aTargetFormat) { |
259 | var out = ""; | |
260 | switch (aTargetFormat) { | |
261 | case "gpx": | |
262 | out += '<?xml version="1.0" encoding="UTF-8" ?>' + "\n\n"; | |
263 | out += '<gpx version="1.0" creator="Lantea" xmlns="http://www.topografix.com/GPX/1/0">' + "\n"; | |
264 | if (gTrack.length) { | |
265 | out += ' <trk>' + "\n"; | |
993fd081 | 266 | out += ' <trkseg>' + "\n"; |
8389557a RK |
267 | for (var i = 0; i < gTrack.length; i++) { |
268 | if (gTrack[i].beginSegment && i > 0) { | |
269 | out += ' </trkseg>' + "\n"; | |
270 | out += ' <trkseg>' + "\n"; | |
271 | } | |
272 | out += ' <trkpt lat="' + gTrack[i].coords.latitude + '" lon="' + | |
273 | gTrack[i].coords.longitude + '">' + "\n"; | |
274 | if (gTrack[i].coords.altitude) { | |
275 | out += ' <ele>' + gTrack[i].coords.altitude + '</ele>' + "\n"; | |
276 | } | |
277 | out += ' <time>' + makeISOString(gTrack[i].time) + '</time>' + "\n"; | |
278 | out += ' </trkpt>' + "\n"; | |
279 | } | |
280 | out += ' </trkseg>' + "\n"; | |
281 | out += ' </trk>' + "\n"; | |
993fd081 | 282 | } |
8389557a RK |
283 | out += '</gpx>' + "\n"; |
284 | break; | |
285 | case "json": | |
286 | out = JSON.stringify(gTrack); | |
287 | break; | |
288 | default: | |
289 | break; | |
290 | } | |
291 | return out; | |
292 | } | |
293 | ||
294 | function saveTrack() { | |
295 | if (gTrack.length) { | |
296 | var outDataURI = "data:application/gpx+xml," + | |
297 | encodeURIComponent(convertTrack("gpx")); | |
99631a75 RK |
298 | window.open(outDataURI, 'GPX Track'); |
299 | } | |
300 | } | |
993fd081 | 301 | |
4b12da3a RK |
302 | function saveTrackDump() { |
303 | if (gTrack.length) { | |
8389557a RK |
304 | var outDataURI = "data:application/json," + |
305 | encodeURIComponent(convertTrack("json")); | |
4b12da3a RK |
306 | window.open(outDataURI, 'JSON dump'); |
307 | } | |
308 | } | |
309 | ||
8389557a | 310 | function uploadTrack() { |
6ddefbf9 | 311 | // Hide all areas in the dialog. |
43255174 RK |
312 | var dia = document.getElementById("dialogArea"); |
313 | var areas = dia.children; | |
314 | for (var i = 0; i <= areas.length - 1; i++) { | |
315 | areas[i].style.display = "none"; | |
316 | } | |
6ddefbf9 RK |
317 | // Reset all the fields in the status area. |
318 | document.getElementById("uploadStatusCloseButton").disabled = true; | |
319 | document.getElementById("uploadInProgress").style.display = "block"; | |
320 | document.getElementById("uploadSuccess").style.display = "none"; | |
d0c62ee0 | 321 | document.getElementById("uploadFailed").style.display = "none"; |
6ddefbf9 | 322 | document.getElementById("uploadError").style.display = "none"; |
d0c62ee0 | 323 | document.getElementById("uploadErrorMsg").textContent = ""; |
6ddefbf9 | 324 | // Now show the status area. |
43255174 RK |
325 | document.getElementById("uploadStatus").style.display = "block"; |
326 | ||
8389557a | 327 | // See http://wiki.openstreetmap.org/wiki/Api06#Uploading_traces |
43255174 RK |
328 | var trackBlob = new Blob([convertTrack("gpx")], |
329 | { "type" : "application/gpx+xml" }); | |
8389557a RK |
330 | var formData = new FormData(); |
331 | formData.append("file", trackBlob); | |
43255174 RK |
332 | var desc = document.getElementById("uploadDesc").value; |
333 | formData.append("description", | |
334 | desc.length ? desc : "Track recorded via Lantea Maps"); | |
8389557a | 335 | //formData.append("tags", ""); |
43255174 RK |
336 | formData.append("visibility", |
337 | document.getElementById("uploadVisibility").value); | |
0494a6db RK |
338 | // Do an empty POST request first, so that we don't send everything, |
339 | // then ask for credentials, and then send again. | |
340 | var hXHR = new XMLHttpRequest(); | |
341 | hXHR.onreadystatechange = function() { | |
fdaf08db | 342 | if (hXHR.readyState == 4 && (hXHR.status == 200 || hXHR.status == 400)) { |
0494a6db RK |
343 | // 400 is Bad Request, but that's expected as this was empty. |
344 | // So far so good, init actual upload. | |
345 | var XHR = new XMLHttpRequest(); | |
346 | XHR.onreadystatechange = function() { | |
347 | if (XHR.readyState == 4 && XHR.status == 200) { | |
348 | // Everthing looks fine. | |
349 | reportUploadStatus(true); | |
350 | } else if (XHR.readyState == 4 && XHR.status != 200) { | |
351 | // Fetched the wrong page or network error... | |
352 | reportUploadStatus(false); | |
353 | } | |
354 | }; | |
355 | XHR.open("POST", gOSMAPIURL + "api/0.6/gpx/create", true); | |
356 | // Cross-Origin XHR doesn't allow username/password (HTTP Auth). | |
357 | // So, we'll ask the user for entering credentials with rather ugly UI. | |
358 | XHR.withCredentials = true; | |
359 | try { | |
360 | XHR.send(formData); // Send actual form data. | |
361 | } | |
362 | catch (e) { | |
363 | reportUploadStatus(false, e); | |
364 | } | |
365 | } else if (hXHR.readyState == 4 && hXHR.status != 200) { | |
366 | // Fetched the wrong page or network error... | |
8389557a RK |
367 | reportUploadStatus(false); |
368 | } | |
369 | }; | |
0494a6db | 370 | hXHR.open("POST", gOSMAPIURL + "api/0.6/gpx/create", true); |
43255174 RK |
371 | // Cross-Origin XHR doesn't allow username/password (HTTP Auth). |
372 | // So, we'll ask the user for entering credentials with rather ugly UI. | |
0494a6db | 373 | hXHR.withCredentials = true; |
8389557a | 374 | try { |
0494a6db | 375 | hXHR.send(); // Empty request, see above. |
8389557a RK |
376 | } |
377 | catch (e) { | |
378 | reportUploadStatus(false, e); | |
379 | } | |
380 | } | |
381 | ||
382 | function reportUploadStatus(aSuccess, aMessage) { | |
43255174 RK |
383 | document.getElementById("uploadStatusCloseButton").disabled = false; |
384 | document.getElementById("uploadInProgress").style.display = "none"; | |
385 | if (aSuccess) { | |
386 | document.getElementById("uploadSuccess").style.display = "block"; | |
387 | } | |
388 | else if (aMessage) { | |
389 | document.getElementById("uploadErrorMsg").textContent = aMessage; | |
390 | document.getElementById("uploadError").style.display = "block"; | |
391 | } | |
392 | else { | |
393 | document.getElementById("uploadFailed").style.display = "block"; | |
394 | } | |
8389557a RK |
395 | } |
396 | ||
993fd081 RK |
397 | var gPrefs = { |
398 | objStore: "prefs", | |
399 | ||
400 | get: function(aKey, aCallback) { | |
401 | if (!mainDB) | |
402 | return; | |
403 | var transaction = mainDB.transaction([this.objStore]); | |
404 | var request = transaction.objectStore(this.objStore).get(aKey); | |
405 | request.onsuccess = function(event) { | |
406 | aCallback(request.result, event); | |
407 | }; | |
408 | request.onerror = function(event) { | |
409 | // Errors can be handled here. | |
410 | aCallback(undefined, event); | |
411 | }; | |
412 | }, | |
413 | ||
414 | set: function(aKey, aValue, aCallback) { | |
415 | if (!mainDB) | |
416 | return; | |
417 | var success = false; | |
d4ccddb8 | 418 | var transaction = mainDB.transaction([this.objStore], "readwrite"); |
993fd081 | 419 | var objStore = transaction.objectStore(this.objStore); |
3610c22d | 420 | var request = objStore.put(aValue, aKey); |
993fd081 RK |
421 | request.onsuccess = function(event) { |
422 | success = true; | |
423 | if (aCallback) | |
424 | aCallback(success, event); | |
425 | }; | |
426 | request.onerror = function(event) { | |
427 | // Errors can be handled here. | |
428 | if (aCallback) | |
429 | aCallback(success, event); | |
430 | }; | |
431 | }, | |
432 | ||
433 | unset: function(aKey, aCallback) { | |
434 | if (!mainDB) | |
435 | return; | |
436 | var success = false; | |
d4ccddb8 | 437 | var transaction = mainDB.transaction([this.objStore], "readwrite"); |
993fd081 RK |
438 | var request = transaction.objectStore(this.objStore).delete(aKey); |
439 | request.onsuccess = function(event) { | |
440 | success = true; | |
441 | if (aCallback) | |
442 | aCallback(success, event); | |
443 | }; | |
444 | request.onerror = function(event) { | |
445 | // Errors can be handled here. | |
446 | if (aCallback) | |
447 | aCallback(success, event); | |
448 | } | |
449 | } | |
450 | }; | |
451 | ||
452 | var gTrackStore = { | |
453 | objStore: "track", | |
454 | ||
455 | getList: function(aCallback) { | |
456 | if (!mainDB) | |
457 | return; | |
458 | var transaction = mainDB.transaction([this.objStore]); | |
459 | var objStore = transaction.objectStore(this.objStore); | |
460 | if (objStore.getAll) { // currently Mozilla-specific | |
461 | objStore.getAll().onsuccess = function(event) { | |
462 | aCallback(event.target.result); | |
463 | }; | |
464 | } | |
465 | else { // Use cursor (standard method). | |
466 | var tPoints = []; | |
467 | objStore.openCursor().onsuccess = function(event) { | |
468 | var cursor = event.target.result; | |
469 | if (cursor) { | |
470 | tPoints.push(cursor.value); | |
471 | cursor.continue(); | |
472 | } | |
473 | else { | |
474 | aCallback(tPoints); | |
475 | } | |
476 | }; | |
477 | } | |
478 | }, | |
479 | ||
6ddefbf9 RK |
480 | getListStepped: function(aCallback) { |
481 | if (!mainDB) | |
482 | return; | |
483 | var transaction = mainDB.transaction([this.objStore]); | |
484 | var objStore = transaction.objectStore(this.objStore); | |
485 | // Use cursor in reverse direction (so we get the most recent position first) | |
486 | objStore.openCursor(null, "prev").onsuccess = function(event) { | |
487 | var cursor = event.target.result; | |
488 | if (cursor) { | |
489 | aCallback(cursor.value); | |
490 | cursor.continue(); | |
491 | } | |
492 | else { | |
493 | aCallback(null); | |
494 | } | |
495 | }; | |
496 | }, | |
497 | ||
993fd081 RK |
498 | push: function(aValue, aCallback) { |
499 | if (!mainDB) | |
500 | return; | |
d4ccddb8 | 501 | var transaction = mainDB.transaction([this.objStore], "readwrite"); |
993fd081 RK |
502 | var objStore = transaction.objectStore(this.objStore); |
503 | var request = objStore.add(aValue); | |
504 | request.onsuccess = function(event) { | |
505 | if (aCallback) | |
506 | aCallback(request.result, event); | |
507 | }; | |
508 | request.onerror = function(event) { | |
509 | // Errors can be handled here. | |
510 | if (aCallback) | |
511 | aCallback(false, event); | |
512 | }; | |
513 | }, | |
514 | ||
515 | clear: function(aCallback) { | |
516 | if (!mainDB) | |
517 | return; | |
518 | var success = false; | |
d4ccddb8 | 519 | var transaction = mainDB.transaction([this.objStore], "readwrite"); |
993fd081 RK |
520 | var request = transaction.objectStore(this.objStore).clear(); |
521 | request.onsuccess = function(event) { | |
522 | success = true; | |
523 | if (aCallback) | |
524 | aCallback(success, event); | |
525 | }; | |
526 | request.onerror = function(event) { | |
527 | // Errors can be handled here. | |
528 | if (aCallback) | |
529 | aCallback(success, event); | |
530 | } | |
531 | } | |
532 | }; |