-/* ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is Lantea mapping/tracking web app.
- *
- * The Initial Developer of the Original Code is
- * Robert Kaiser <kairo@kairo.at>.
- * Portions created by the Initial Developer are Copyright (C) 2011
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- * Robert Kaiser <kairo@kairo.at>
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either the GNU General Public License Version 2 or later (the "GPL"), or
- * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
-
-var gCanvas, gContext;
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+var gCanvas, gContext, gGeolocation;
+var gDebug = true;
var gTileSize = 256;
var gMaxZoom = 18; // The minimum is 0.
var gLastMouseY = 0;
var gZoomFactor;
-// Used as an associative array. They keys have to be strings, ours will be "xindex,yindex,zindex" e.g. "13,245,12".
+// Used as an associative array.
+// The keys have to be strings, ours will be "xindex,yindex,zindex" e.g. "13,245,12".
var gTiles = {};
var gLoadingTile;
+var gMapPrefsLoaded = false;
+
var gDragging = false;
-var gZoomTouchID;
+var gDragTouchID;
var gGeoWatchID;
var gTrack = [];
var gCenterPosition = true;
function initMap() {
+ gGeolocation = navigator.geolocation;
gCanvas = document.getElementById("map");
gContext = gCanvas.getContext("2d");
if (!gActiveMap)
gActiveMap = "osm_mapnik";
+ //gDebug = true;
+ if (gDebug) {
+ gGeolocation = geofake;
+ var hiddenList = document.getElementsByClassName("debugHide");
+ // last to first - list of elements with that class is changing!
+ for (var i = hiddenList.length - 1; i >= 0; i--) {
+ hiddenList[i].classList.remove("debugHide");
+ }
+ }
+
+ var loopCnt = 0;
+ var getPersistentPrefs = function() {
+ if (mainDB) {
+ gPrefs.get("position", function(aValue) {
+ if (aValue) {
+ gPos = aValue;
+ drawMap();
+ }
+ });
+ gPrefs.get("center_map", function(aValue) {
+ if (aValue === undefined)
+ document.getElementById("centerCheckbox").checked = true;
+ else
+ document.getElementById("centerCheckbox").checked = aValue;
+ setCentering(document.getElementById("centerCheckbox"));
+ });
+ gPrefs.get("tracking_enabled", function(aValue) {
+ if (aValue === undefined)
+ document.getElementById("trackCheckbox").checked = true;
+ else
+ document.getElementById("trackCheckbox").checked = aValue;
+ setTracking(document.getElementById("trackCheckbox"));
+ });
+ gMapPrefsLoaded = true;
+ }
+ else
+ setTimeout(getPersistentPrefs, 100);
+ loopCnt++;
+ if (loopCnt > 20) {
+ gMapPrefsLoaded = true;
+ return;
+ }
+ };
+ getPersistentPrefs();
+
gCanvas.addEventListener("mouseup", mapEvHandler, false);
gCanvas.addEventListener("mousemove", mapEvHandler, false);
gCanvas.addEventListener("mousedown", mapEvHandler, false);
var xMax = gPos.x + wid / 2;
var yMax = gPos.y + ht / 2;
- // Go through all the tiles we want. If any of them aren't loaded or being loaded, do so.
+ if (gMapPrefsLoaded && mainDB)
+ gPrefs.set("position", gPos);
+
+ // Go through all the tiles we want.
+ // If any of them aren't loaded or being loaded, do so.
for (var x = Math.floor(xMin / size); x < Math.ceil(xMax / size); x++) {
for (var y = Math.floor(yMin / size); y < Math.ceil(yMax / size); y++) {
var xoff = (x * size - xMin) / gZoomFactor;
var yoff = (y * size - yMin) / gZoomFactor;
var tileKey = encodeIndex(x, y, gPos.z);
if (gTiles[tileKey] && gTiles[tileKey].complete) {
- // Round here is **CRUICIAL** otherwise the images are filtered and the performance sucks (more than expected).
+ // Round here is **CRUCIAL** otherwise the images are filtered
+ // and the performance sucks (more than expected).
gContext.drawImage(gTiles[tileKey], Math.round(xoff), Math.round(yoff));
}
else {
return;
// Bail out if the started touch can't be found.
- if (touchEvent && zoomstart &&
- !aEvent.changedTouches.identifiedTouch(gZoomTouchID))
+ if (touchEvent && gDragging &&
+ !aEvent.changedTouches.identifiedTouch(gDragTouchID))
return;
}
var coordObj = touchEvent ?
- aEvent.changedTouches.identifiedTouch(gZoomTouchID) :
+ aEvent.changedTouches.identifiedTouch(gDragTouchID) :
aEvent;
switch (aEvent.type) {
case "mousedown":
case "touchstart":
if (touchEvent) {
- zoomTouchID = aEvent.changedTouches.item(0).identifier;
- coordObj = aEvent.changedTouches.identifiedTouch(gZoomTouchID);
+ gDragTouchID = aEvent.changedTouches.item(0).identifier;
+ coordObj = aEvent.changedTouches.identifiedTouch(gDragTouchID);
}
var x = coordObj.clientX - gCanvas.offsetLeft;
var y = coordObj.clientY - gCanvas.offsetTop;
}
};
-geofake = {
+var geofake = {
tracking: false,
+ lastPos: {x: undefined, y: undefined},
watchPosition: function(aSuccessCallback, aErrorCallback, aPrefObject) {
this.tracking = true;
var watchCall = function() {
+ // calc new position in lat/lon degrees
+ // 90° on Earth surface are ~10,000 km at the equator,
+ // so try moving at most 10m at a time
+ if (geofake.lastPos.x)
+ geofake.lastPos.x += (Math.random() - .5) * 90 / 1000000
+ else
+ geofake.lastPos.x = 48.208174
+ if (geofake.lastPos.y)
+ geofake.lastPos.y += (Math.random() - .5) * 90 / 1000000
+ else
+ geofake.lastPos.y = 16.373819
aSuccessCallback({timestamp: Date.now(),
- coords: {latitude: 48.208174, // + Math.random() - .5,
- longitude: 16.373819, // + Math.random() - .5,
+ coords: {latitude: geofake.lastPos.x,
+ longitude: geofake.lastPos.y,
accuracy: 20}});
if (geofake.tracking)
setTimeout(watchCall, 1000);
}
}
+function setCentering(aCheckbox) {
+ if (gMapPrefsLoaded && mainDB)
+ gPrefs.set("center_map", aCheckbox.checked);
+ gCenterPosition = aCheckbox.checked;
+}
+
+function setTracking(aCheckbox) {
+ if (gMapPrefsLoaded && mainDB)
+ gPrefs.set("tracking_enabled", aCheckbox.checked);
+ if (aCheckbox.checked)
+ startTracking();
+ else
+ endTracking();
+}
+
function startTracking() {
+ var loopCnt = 0;
+ var getStoredTrack = function() {
+ if (mainDB)
+ gTrackStore.getList(function(aTPoints) {
+ if (gDebug)
+ document.getElementById("debug").textContent = aTPoints.length + " points loaded.";
+ if (aTPoints.length) {
+ gTrack = aTPoints;
+ }
+ });
+ else
+ setTimeout(getStoredTrack, 100);
+ loopCnt++;
+ if (loopCnt > 20)
+ return;
+ };
+ getStoredTrack();
if (navigator.geolocation) {
- //gGeoWatchID = geofake.watchPosition(
- gGeoWatchID = navigator.geolocation.watchPosition(
+ gGeoWatchID = gGeolocation.watchPosition(
function(position) {
// Coords spec: https://developer.mozilla.org/en/XPCOM_Interface_Reference/NsIDOMGeoPositionCoords
- gTrack.push({time: position.timestamp, coords: position.coords});
+ var tPoint = {time: position.timestamp,
+ coords: position.coords,
+ beginSegment: !gLastTrackPoint};
+ gTrack.push(tPoint);
+ gTrackStore.push(tPoint);
drawTrackPoint(position.coords.latitude, position.coords.longitude);
if (gCenterPosition) {
- var posCoord = gps2xy(position.coords.latitude, position.coords.longitude);
+ var posCoord = gps2xy(position.coords.latitude,
+ position.coords.longitude);
if (Math.abs(gPos.x - posCoord.x) > gCanvas.width * gZoomFactor / 4 ||
Math.abs(gPos.y - posCoord.y) > gCanvas.height * gZoomFactor / 4) {
gPos.x = posCoord.x;
function endTracking() {
if (gGeoWatchID) {
- navigator.geolocation.clearWatch(gGeoWatchID);
+ gGeolocation.clearWatch(gGeoWatchID);
}
}
+
+function clearTrack() {
+ gTrack = [];
+ gTrackStore.clear();
+ drawMap();
+}
projects / lantea.git / blobdiff