* 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 gMapCanvas, gMapContext, gGLMapCanvas, gTrackCanvas, gTrackContext, gGeolocation;
+var gGLMapCanvas, gTrackCanvas, gTrackContext, gGeolocation;
var gDebug = false;
var gMinTrackAccuracy = 1000; // meters
var gMapStyles = {
// OSM tile usage policy: http://wiki.openstreetmap.org/wiki/Tile_usage_policy
// Find some more OSM ones at http://wiki.openstreetmap.org/wiki/Slippy_map_tilenames#Tile_servers
+ // and http://wiki.openstreetmap.org/wiki/Tiles or http://wiki.openstreetmap.org/wiki/TMS
osm_mapnik:
{name: "OpenStreetMap (Mapnik)",
- url: "http://tile.openstreetmap.org/{z}/{x}/{y}.png",
+ url: "https://[a-c].tile.openstreetmap.org/{z}/{x}/{y}.png",
copyright: 'Map data and imagery © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> contributors, <a href="http://www.openstreetmap.org/copyright">ODbL/CC-BY-SA</a>'},
osm_cyclemap:
{name: "Cycle Map (OSM)",
- url: "http://[a-c].tile.opencyclemap.org/cycle/{z}/{x}/{y}.png",
+ url: "https://[a-c].tile.thunderforest.com/cycle/{z}/{x}/{y}.png", // "http://[a-c].tile.opencyclemap.org/cycle/{z}/{x}/{y}.png",
copyright: 'Map data and imagery © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> contributors, <a href="http://www.openstreetmap.org/copyright">ODbL/CC-BY-SA</a>'},
osm_transmap:
{name: "Transport Map (OSM)",
- url: "http://[a-c].tile2.opencyclemap.org/transport/{z}/{x}/{y}.png",
+ url: "https://[a-c].tile.thunderforest.com/transport/{z}/{x}/{y}.png", // "http://[a-c].tile2.opencyclemap.org/transport/{z}/{x}/{y}.png",
copyright: 'Map data and imagery © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> contributors, <a href="http://www.openstreetmap.org/copyright">ODbL/CC-BY-SA</a>'},
+ osm_germany:
+ {name: "OSM German Style",
+ url: "http://[a-d].tile.openstreetmap.de/tiles/osmde/{z}/{x}/{y}.png", // https is not supported at all
+ copyright: 'Map data and imagery © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> contributors, <a href="http://www.openstreetmap.org/copyright">ODbL/CC-BY-SA</a>'},
+// oepnvkarte: // XXX: toolserver.org does not support CORS at this time :(
+// {name: "ÖPNV-Karte (OSM)",
+// url: "http://toolserver.org/~cmarqu/hill/{z}/{x}/{y}.png",
+// copyright: 'Map data © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> contributors, <a href="http://www.openstreetmap.org/copyright">ODbL/CC-BY-SA</a>, tiles by <a href="http://memomaps.de">MeMoMaps</a> under <a href="http://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>.'},
mapquest_open:
{name: "MapQuest OSM",
- url: "http://otile[1-4].mqcdn.com/tiles/1.0.0/osm/{z}/{x}/{y}.png",
- copyright: 'Map data © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> and contributors (<a href="http://www.openstreetmap.org/copyright">ODbL/CC-BY-SA</a>), tiles
Courtesy of <a href="http://www.mapquest.com/">MapQuest</a>.'},
+ url: "http://otile[1-4].mqcdn.com/tiles/1.0.0/osm/{z}/{x}/{y}.png", // https has wrong cert, akamai instead of mqcdn
+ copyright: 'Map data © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> and contributors (<a href="http://www.openstreetmap.org/copyright">ODbL/CC-BY-SA</a>), tiles
courtesy of <a href="http://www.mapquest.com/">MapQuest</a>.'},
mapquest_aerial:
{name: "MapQuest Open Aerial",
url: "http://otile[1-4].mqcdn.com/tiles/1.0.0/sat/{z}/{x}/{y}.jpg",
copyright: 'Tiles Courtesy of <a href="http://www.mapquest.com/">MapQuest</a>, portions Courtesy NASA/JPL-Caltech and U.S. Depart. of Agriculture, Farm Service Agency.'},
- opengeoserver_arial:
- {name: "OpenGeoServer Aerial",
- url: "http://services.opengeoserver.org/tiles/1.0.0/globe.aerial_EPSG3857/{z}/{x}/{y}.png?origin=nw",
- copyright: 'Tiles by <a href="http://www.opengeoserver.org/">OpenGeoServer.org</a>, <a href="https://creativecommons.org/licenses/by/3.0/at/">CC-BY 3.0 AT</a>.'},
- google_map:
- {name: "Google Maps",
- url: " http://mt1.google.com/vt/x={x}&y={y}&z={z}",
- copyright: 'Map data and imagery © <a href="http://maps.google.com/">Google</a>'},
+ osm_hot:
+ {name: "OSM HOT style",
+ url: "http://[a-c].tile.openstreetmap.fr/hot/{z}/{x}/{y}.png", // https has CAcert which doesn't work in browsers
+ copyright: 'Map data and imagery © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> contributors, <a href="http://www.openstreetmap.org/copyright">ODbL/CC-BY-SA</a>'},
+// hikebike: // XXX: toolserver.org does not support CORS at this time :(
+// {name: "Hike and Bike (OSM)",
+// url: "http://toolserver.org/tiles/hikebike/{z}/{x}/{y}.png",
+// copyright: 'Map data and imagery © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> contributors, <a href="http://www.openstreetmap.org/copyright">ODbL/CC-BY-SA</a>'},
+ stamen_toner:
+ {name: "Stamen Toner (B+W)", // https has wrong cert, .ssl.fastly.net instead of .tile.stamen.com
+ url: "http://[a-c].tile.stamen.com/toner/{z}/{x}/{y}.jpg",
+ copyright: 'Map data © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> contributors, <a href="http://www.openstreetmap.org/copyright">ODbL/CC-BY-SA</a>, tiles by <a href="http://stamen.com">Stamen Design</a>, under <a href="http://creativecommons.org/licenses/by/3.0">CC BY 3.0</a>.'},
+ stamen_terrain:
+ {name: "Stamen Terrain (USA only)", // https has wrong cert, .ssl.fastly.net instead of .tile.stamen.com
+ url: "http://[a-c].tile.stamen.com/terrain/{z}/{x}/{y}.jpg",
+ copyright: 'Map data © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> contributors, <a href="http://www.openstreetmap.org/copyright">ODbL/CC-BY-SA</a>, tiles by <a href="http://stamen.com">Stamen Design</a>, under <a href="http://creativecommons.org/licenses/by/3.0">CC BY 3.0</a>.'},
+ stamen_watercolor:
+ {name: "Stamen Watercolor (artistic)", // https has wrong cert, .ssl.fastly.net instead of .tile.stamen.com
+ url: "http://[a-c].tile.stamen.com/watercolor/{z}/{x}/{y}.jpg",
+ copyright: 'Map data © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> contributors, <a href="http://www.openstreetmap.org/copyright">ODbL/CC-BY-SA</a>, tiles by <a href="http://stamen.com">Stamen Design</a>, under <a href="http://creativecommons.org/licenses/by/3.0">CC BY 3.0</a>.'},
};
var gLastMouseX = 0;
function initMap() {
gGeolocation = navigator.geolocation;
- // Set up canvas contexts. TODO: Remove 2D map once GL support works.
- gMapCanvas = document.getElementById("map");
- gMapContext = gMapCanvas.getContext("2d");
- gGLMapCanvas = document.getElementById("glmap");
+ // Set up canvas context.
+ gGLMapCanvas = document.getElementById("map");
try {
// Try to grab the standard context. If it fails, fallback to experimental.
// We also try to tell it we do not need a depth buffer.
gGLMapCanvas.getContext("experimental-webgl", {depth: false});
}
catch(e) {}
- // If we don't have a GL context, give up now
if (!gMap.gl) {
+ // If we don't have a GL context, give up now
showGLWarningDialog();
gMap.gl = null;
}
+ else {
+ // GL context can be lost at any time, handle that.
+ // See http://www.khronos.org/webgl/wiki/HandlingContextLost
+ gGLMapCanvas.addEventListener("webglcontextlost",
+ gMap.handleContextLost, false);
+ gGLMapCanvas.addEventListener("webglcontextrestored",
+ gMap.handleContextRestored, false);
+ }
gTrackCanvas = document.getElementById("track");
gTrackContext = gTrackCanvas.getContext("2d");
if (!gMap.activeMap)
document.getElementById("body").addEventListener("keydown", mapEvHandler, false);
+ document.addEventListener("visibilitychange", visibilityEvHandler, false);
+
+ console.log("Events added.");
document.getElementById("copyright").innerHTML =
gMapStyles[gMap.activeMap].copyright;
+ console.log("Init loading tile...");
gLoadingTile = new Image();
- gLoadingTile.src = "style/loading.png";
gLoadingTile.onload = function() {
+ console.log("Loading tile loaded.");
var throwEv = new CustomEvent("prefload-done");
gAction.dispatchEvent(throwEv);
};
+ console.log("Set loading tile...");
+ gLoadingTile.src = "style/loading.png";
}
}
else {
gAction.removeEventListener(aEvent.type, loadPrefs, false);
gAction.addEventListener("prefs-step", loadPrefs, false);
gWaitCounter++;
+ gPrefs.get("active_map_style", function(aValue) {
+ if (aValue && gMapStyles[aValue]) {
+ gMap.activeMap = aValue;
+ }
+ gWaitCounter--;
+ var throwEv = new CustomEvent("prefs-step");
+ gAction.dispatchEvent(throwEv);
+ });
+ gWaitCounter++;
gPrefs.get("position", function(aValue) {
- if (aValue) {
+ if (aValue && aValue.x && aValue.y && aValue.z) {
gMap.pos = aValue;
}
gWaitCounter--;
});
gWaitCounter++;
gPrefs.get("center_map", function(aValue) {
- if (aValue === undefined)
+ if (aValue === undefined) {
document.getElementById("centerCheckbox").checked = true;
- else
+ }
+ else {
document.getElementById("centerCheckbox").checked = aValue;
+ }
setCentering(document.getElementById("centerCheckbox"));
gWaitCounter--;
var throwEv = new CustomEvent("prefs-step");
});
gWaitCounter++;
gPrefs.get("tracking_enabled", function(aValue) {
- if (aValue === undefined)
+ if (aValue === undefined) {
document.getElementById("trackCheckbox").checked = true;
- else
+ }
+ else {
document.getElementById("trackCheckbox").checked = aValue;
+ }
gWaitCounter--;
var throwEv = new CustomEvent("prefs-step");
gAction.dispatchEvent(throwEv);
if (aTPoint) {
// Add in front and return new length.
var tracklen = gTrack.unshift(aTPoint);
- // Redraw track periodically, larger distance the longer it gets.
+ // Redraw track periodically, larger distance the longer it gets
+ // (but clamped to the first value over a certain limit).
// Initial paint will do initial track drawing.
if (tracklen % redrawBase == 0) {
drawTrack();
- redrawBase = tracklen;
+ if (redrawBase < 1000) {
+ redrawBase = tracklen;
+ }
}
}
else {
glResolutionAttr: null,
glMapTexture: null,
glTextures: {},
- glTextureKeys: {},
+ glTxCleanIntervalID: null,
+ glTexturesPerZoomLevel: 0,
activeMap: "osm_mapnik",
tileSize: 256,
y: 23670000.0, // The range is 0-67108864 (2^gMap.maxZoom * gMap.tileSize)
z: 5 // This could be fractional if supported being between zoom levels.
},
+ baseDim: { // Map width, height and tile size in level 18 pixels.
+ wid: null,
+ ht: null,
+ tsize: null,
+ },
+
+ get width() { return gMap.gl ? gMap.gl.drawingBufferWidth : gGLMapCanvas.width; },
+ get height() { return gMap.gl ? gMap.gl.drawingBufferHeight : gGLMapCanvas.height; },
getVertShaderSource: function() {
return 'attribute vec2 aVertexPosition;\n' +
' gl_Position = vec4(clipSpace * vec2(1, -1), 0, 1);\n' +
' vTextureCoord = aTextureCoord;\n' +
'}'; },
- getFragShaderSource:function() {
+ getFragShaderSource: function() {
return 'varying highp vec2 vTextureCoord;\n\n' +
'uniform sampler2D uImage;\n\n' +
'void main(void) {\n' +
initGL: function() {
// When called from the event listener, the "this" reference doesn't work, so use the object name.
+ console.log("Initializing WebGL...");
if (gMap.gl) {
gMap.gl.viewport(0, 0, gMap.gl.drawingBufferWidth, gMap.gl.drawingBufferHeight);
gMap.gl.clearColor(0.0, 0.0, 0.0, 0.5); // Set clear color to black, fully opaque.
gMap.gl.clear(gMap.gl.COLOR_BUFFER_BIT|gMap.gl.DEPTH_BUFFER_BIT); // Clear the color.
// Create and initialize the shaders.
+ console.log("Create and compile shaders...");
var vertShader = gMap.gl.createShader(gMap.gl.VERTEX_SHADER);
var fragShader = gMap.gl.createShader(gMap.gl.FRAGMENT_SHADER);
gMap.gl.shaderSource(vertShader, gMap.getVertShaderSource());
return null;
}
+ console.log("Create and link shader program...");
gMap.glShaderProgram = gMap.gl.createProgram();
gMap.gl.attachShader(gMap.glShaderProgram, vertShader);
gMap.gl.attachShader(gMap.glShaderProgram, fragShader);
gMap.glTextureCoordAttr = gMap.gl.getAttribLocation(gMap.glShaderProgram, "aTextureCoord");
gMap.glResolutionAttr = gMap.gl.getUniformLocation(gMap.glShaderProgram, "uResolution");
+ console.log("Set up vertex buffer...");
var tileVerticesBuffer = gMap.gl.createBuffer();
gMap.gl.bindBuffer(gMap.gl.ARRAY_BUFFER, tileVerticesBuffer);
// The vertices are the coordinates of the corner points of the square.
gMap.gl.enableVertexAttribArray(gMap.glTextureCoordAttr);
gMap.gl.vertexAttribPointer(gMap.glTextureCoordAttr, 2, gMap.gl.FLOAT, false, 0, 0);
- gMap.loadImageToTexture(gLoadingTile, 0, "loading::0,0,0");
+ gMap.loadImageToTexture(gLoadingTile, getTileKey("loading", {x: 0, y: 0, z: 0}));
gMap.gl.uniform2f(gMap.glResolutionAttr, gGLMapCanvas.width, gGLMapCanvas.height);
// Create a buffer for the position of the rectangle corners.
+ console.log("Set up coord buffer...");
var mapVerticesTextureCoordBuffer = gMap.gl.createBuffer();
gMap.gl.bindBuffer(gMap.gl.ARRAY_BUFFER, mapVerticesTextureCoordBuffer);
gMap.gl.enableVertexAttribArray(gMap.glVertexPositionAttr);
gMap.gl.vertexAttribPointer(gMap.glVertexPositionAttr, 2, gMap.gl.FLOAT, false, 0, 0);
+
+ // Call texture cleaning every 30 seconds, for now (is 60 better?).
+ gMap.glTxCleanIntervalID = window.setInterval(gMap.cleanTextures, 30 * 1000);
}
- var throwEv = new CustomEvent("mapinit-done");
- gAction.dispatchEvent(throwEv);
+ if (!gAppInitDone) {
+ // We may be called when context was lost and destroyed,
+ // only send event when we are in app startup
+ // (gAppInitDone is set to true right after we return this event).
+ var throwEv = new CustomEvent("mapinit-done");
+ gAction.dispatchEvent(throwEv);
+ }
},
- drawGLTest: function() {
- if (!gMap.gl) { return; }
-
- this.drawTileGL(5, 10, 0);
- this.drawTileGL(300, 20, 0);
+ draw: function() {
+ gMap.assembleGL();
+ drawTrack();
},
- drawGL: function(aPixels, aOverdraw) {
+ assembleGL: function() {
if (!gMap.gl) { return; }
- // aPixels is an object with left/right/top/bottom members telling how many
- // pixels on the borders should actually be drawn.
- // aOverdraw is a bool that tells if we should draw placeholders or draw
- // straight over the existing content.
- // XXX: Both those optimizations are OFF for GL right now!
- //if (!aPixels)
- aPixels = {left: gMap.gl.drawingBufferWidth, right: gMap.gl.drawingBufferWidth,
- top: gMap.gl.drawingBufferHeight, bottom: gMap.gl.drawingBufferHeight};
- if (!aOverdraw)
- aOverdraw = false;
document.getElementById("zoomLevel").textContent = gMap.pos.z;
gMap.zoomFactor = Math.pow(2, gMap.maxZoom - gMap.pos.z);
- var wid = gMap.gl.drawingBufferWidth * gMap.zoomFactor; // Width in level 18 pixels.
- var ht = gMap.gl.drawingBufferHeight * gMap.zoomFactor; // Height in level 18 pixels.
- var size = gMap.tileSize * gMap.zoomFactor; // Tile size in level 18 pixels.
+ gMap.baseDim.wid = gMap.gl.drawingBufferWidth * gMap.zoomFactor;
+ gMap.baseDim.ht = gMap.gl.drawingBufferHeight * gMap.zoomFactor;
+ gMap.baseDim.tsize = gMap.tileSize * gMap.zoomFactor;
- var xMin = gMap.pos.x - wid / 2; // Corners of the window in level 18 pixels.
- var yMin = gMap.pos.y - ht / 2;
- var xMax = gMap.pos.x + wid / 2;
- var yMax = gMap.pos.y + ht / 2;
+ var xMin = gMap.pos.x - gMap.baseDim.wid / 2; // Corners of the window in level 18 pixels.
+ var yMin = gMap.pos.y - gMap.baseDim.ht / 2;
+ var xMax = gMap.pos.x + gMap.baseDim.wid / 2;
+ var yMax = gMap.pos.y + gMap.baseDim.ht / 2;
if (gMapPrefsLoaded && mainDB)
gPrefs.set("position", gMap.pos);
- var tiles = {left: Math.ceil((xMin + aPixels.left * gMap.zoomFactor) / size) -
- (aPixels.left ? 0 : 1),
- right: Math.floor((xMax - aPixels.right * gMap.zoomFactor) / size) -
- (aPixels.right ? 1 : 0),
- top: Math.ceil((yMin + aPixels.top * gMap.zoomFactor) / size) -
- (aPixels.top ? 0 : 1),
- bottom: Math.floor((yMax - aPixels.bottom * gMap.zoomFactor) / size) -
- (aPixels.bottom ? 1 : 0)};
-
// Go through all the tiles in the map, find out if to draw them and 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++) { // slow script warnings on the tablet appear here!
- // Only go to the drawing step if we need to draw this tile.
- if (x < tiles.left || x > tiles.right ||
- y < tiles.top || y > tiles.bottom) {
- // Round here is **CRUCIAL** otherwise the images are filtered
- // and the performance sucks (more than expected).
- var xoff = Math.round((x * size - xMin) / gMap.zoomFactor);
- var yoff = Math.round((y * size - yMin) / gMap.zoomFactor);
- // Draw placeholder tile unless we overdraw.
- if (!aOverdraw &&
- (x < tiles.left -1 || x > tiles.right + 1 ||
- y < tiles.top -1 || y > tiles.bottom + 1)) {
- gMap.drawTileGL(xoff, yoff, 0);
- }
+ for (var x = Math.floor(xMin / gMap.baseDim.tsize); x < Math.ceil(xMax / gMap.baseDim.tsize); x++) {
+ for (var y = Math.floor(yMin / gMap.baseDim.tsize); y < Math.ceil(yMax / gMap.baseDim.tsize); y++) {
+ // Only go to loading step if we haven't loaded the texture.
+ var coords = {x: x, y: y, z: gMap.pos.z};
+ var tileKey = getTileKey(gMap.activeMap, normalizeCoords(coords));
+ if (!gMap.glTextures[tileKey]) {
// Initiate loading/drawing of the actual tile.
- gTileService.get(gMap.activeMap, {x: x, y: y, z: gMap.pos.z},
- function(aImage, aStyle, aCoords, aTileKey) {
- // Only draw if this applies for the current view.
+ gTileService.get(gMap.activeMap, coords,
+ function(aImage, aStyle, aCoords, aTileKey) {
+ // Only actually load if this still applies for the current view.
if ((aStyle == gMap.activeMap) && (aCoords.z == gMap.pos.z)) {
- var ixMin = gMap.pos.x - wid / 2;
- var iyMin = gMap.pos.y - ht / 2;
- var ixoff = Math.round((aCoords.x * size - ixMin) / gMap.zoomFactor);
- var iyoff = Math.round((aCoords.y * size - iyMin) / gMap.zoomFactor);
var URL = window.URL;
var imgURL = URL.createObjectURL(aImage);
var imgObj = new Image();
- imgObj.src = imgURL;
imgObj.onload = function() {
- var txIndex = gMap.glTextureKeys[aTileKey];
- if (!txIndex) {
- txIndex = Object.keys(gMap.glTextureKeys).length;
- gMap.loadImageToTexture(imgObj, txIndex, aTileKey);
+ gMap.loadImageToTexture(imgObj, aTileKey);
+ if (document.hidden != true) { // Only draw if we're actually visible.
+ window.requestAnimationFrame(function(aTimestamp) { gMap.drawGL() });
}
- gMap.drawTileGL(ixoff, iyoff, txIndex);
URL.revokeObjectURL(imgURL);
}
+ imgObj.src = imgURL;
}
});
}
}
}
- //drawTrack();
+ if (document.hidden != true) { // Only draw if we're actually visible.
+ window.requestAnimationFrame(function(aTimestamp) { gMap.drawGL() });
+ }
},
- resizeAndDrawGL: function() {
- if (!gMap.gl) { return; }
+ drawGL: function() {
+ var xMin = gMap.pos.x - gMap.baseDim.wid / 2; // Corners of the window in level 18 pixels.
+ var yMin = gMap.pos.y - gMap.baseDim.ht / 2;
+ var xMax = gMap.pos.x + gMap.baseDim.wid / 2;
+ var yMax = gMap.pos.y + gMap.baseDim.ht / 2;
- gMap.gl.viewport(0, 0, gMap.gl.drawingBufferWidth, gMap.gl.drawingBufferHeight);
- gMap.gl.clear(gMap.gl.COLOR_BUFFER_BIT); // Clear the color.
- gMap.gl.uniform2f(gMap.glResolutionAttr, gGLMapCanvas.width, gGLMapCanvas.height);
- //gMap.drawGLTest();
- gMap.drawGL();
+ // Go through all the tiles in the map, find out if to draw them and do so.
+ for (var x = Math.floor(xMin / gMap.baseDim.tsize); x < Math.ceil(xMax / gMap.baseDim.tsize); x++) {
+ for (var y = Math.floor(yMin / gMap.baseDim.tsize); y < Math.ceil(yMax / gMap.baseDim.tsize); y++) {
+ // Rounding the pixel offsets ensures we position the tiles precisely.
+ var xoff = Math.round((x * gMap.baseDim.tsize - xMin) / gMap.zoomFactor);
+ var yoff = Math.round((y * gMap.baseDim.tsize - yMin) / gMap.zoomFactor);
+ // Draw the tile, first find out the actual texture to use.
+ var norm = normalizeCoords({x: x, y: y, z: gMap.pos.z});
+ var tileKey = getTileKey(gMap.activeMap, norm);
+ if (!gMap.glTextures[tileKey]) {
+ tileKey = getTileKey("loading", {x: 0, y: 0, z: 0});
+ }
+ gMap.drawTileGL(xoff, yoff, tileKey);
+ }
+ }
},
- drawTileGL: function(aLeft, aRight, aTextureIndex) {
- gMap.gl.activeTexture(gMap.gl.TEXTURE0 + aTextureIndex);
- gMap.gl.bindTexture(gMap.gl.TEXTURE_2D, gMap.glTextures[aTextureIndex]);
+ resizeAndDraw: function() {
+ var viewportWidth = Math.min(window.innerWidth, window.outerWidth);
+ var viewportHeight = Math.min(window.innerHeight, window.outerHeight);
+ if (gGLMapCanvas && gTrackCanvas) {
+ gGLMapCanvas.width = viewportWidth;
+ gGLMapCanvas.height = viewportHeight;
+ gTrackCanvas.width = viewportWidth;
+ gTrackCanvas.height = viewportHeight;
+ if (gMap.gl) {
+ // Size viewport to canvas size.
+ gMap.gl.viewport(0, 0, gMap.gl.drawingBufferWidth, gMap.gl.drawingBufferHeight);
+ // Clear the color.
+ gMap.gl.clear(gMap.gl.COLOR_BUFFER_BIT);
+ // Make sure the vertex shader get the right resolution.
+ gMap.gl.uniform2f(gMap.glResolutionAttr, gGLMapCanvas.width, gGLMapCanvas.height);
+ // Prepare recalculation of textures to keep for one zoom level.
+ gMap.glTexturesPerZoomLevel = 0;
+ }
+ gMap.draw();
+ showUI();
+ }
+ },
+
+ drawTileGL: function(aLeft, aRight, aTileKey) {
+ gMap.gl.activeTexture(gMap.gl.TEXTURE0);
+ gMap.gl.bindTexture(gMap.gl.TEXTURE_2D, gMap.glTextures[aTileKey]);
+ // Set uImage to refer to TEXTURE0
+ gMap.gl.uniform1i(gMap.gl.getUniformLocation(gMap.glShaderProgram, "uImage"), 0);
var x_start = aLeft;
var i_width = gMap.tileSize;
var y_start = aRight;
gMap.gl.drawArrays(gMap.gl.TRIANGLES, 0, 6);
},
- loadImageToTexture: function(aImage, aTextureIndex, aTileKey) {
- gMap.glTextureKeys[aTileKey] = aTextureIndex;
+ loadImageToTexture: function(aImage, aTileKey) {
// Create and bind texture.
- gMap.glTextures[aTextureIndex] = gMap.gl.createTexture();
- gMap.gl.activeTexture(gMap.gl.TEXTURE0 + aTextureIndex);
- gMap.gl.bindTexture(gMap.gl.TEXTURE_2D, gMap.glTextures[aTextureIndex]);
- gMap.gl.uniform1i(gMap.gl.getUniformLocation(gMap.glShaderProgram, "uImage"), 0);
+ gMap.glTextures[aTileKey] = gMap.gl.createTexture();
+ gMap.gl.bindTexture(gMap.gl.TEXTURE_2D, gMap.glTextures[aTileKey]);
// Set params for how the texture minifies and magnifies (wrap params are not needed as we're power-of-two).
gMap.gl.texParameteri(gMap.gl.TEXTURE_2D, gMap.gl.TEXTURE_MIN_FILTER, gMap.gl.NEAREST);
gMap.gl.texParameteri(gMap.gl.TEXTURE_2D, gMap.gl.TEXTURE_MAG_FILTER, gMap.gl.NEAREST);
// Upload the image into the texture.
gMap.gl.texImage2D(gMap.gl.TEXTURE_2D, 0, gMap.gl.RGBA, gMap.gl.RGBA, gMap.gl.UNSIGNED_BYTE, aImage);
},
-}
-function resizeAndDraw() {
- var viewportWidth = Math.min(window.innerWidth, window.outerWidth);
- var viewportHeight = Math.min(window.innerHeight, window.outerHeight);
- if (gMapCanvas && gGLMapCanvas && gTrackCanvas) {
- gMapCanvas.width = viewportWidth;
- gMapCanvas.height = viewportHeight;
- gGLMapCanvas.width = viewportWidth;
- gGLMapCanvas.height = viewportHeight;
- gTrackCanvas.width = viewportWidth;
- gTrackCanvas.height = viewportHeight;
- drawMap();
- gMap.resizeAndDrawGL();
- showUI();
- }
+ cleanTextures: function() {
+ // Get rid of unneeded textures to save memory.
+ // TODO: Be less aggressive, maybe keep neighboring zoom levels (but x/y coords there are zoom-specific).
+ if (!gMap.glTexturesPerZoomLevel) {
+ // Calculate how many textures we need to keep for one zoom level.
+ // ceil(width/size) gives us the minimum, keep one on either side as well.
+ gMap.glTexturesPerZoomLevel =
+ Math.ceil(gMap.gl.drawingBufferWidth / gMap.tileSize + 2) *
+ Math.ceil(gMap.gl.drawingBufferHeight / gMap.tileSize + 2);
+ console.log("Keeping " + gMap.glTexturesPerZoomLevel + " textures per level");
+ }
+ if (Object.keys(gMap.glTextures).length > gMap.glTexturesPerZoomLevel) {
+ console.log("Cleaning textures... (have " + Object.keys(gMap.glTextures).length + " atm)");
+
+ // Find coordinate ranges for tiles to keep.
+ var tMin = normalizeCoords({x: Math.floor((gMap.pos.x - gMap.baseDim.wid / 2) / gMap.baseDim.tsize) - 1,
+ y: Math.floor((gMap.pos.y - gMap.baseDim.ht / 2) / gMap.baseDim.tsize) - 1,
+ z: gMap.pos.z});
+ var tMax = normalizeCoords({x: Math.ceil((gMap.pos.x + gMap.baseDim.wid / 2) / gMap.baseDim.tsize) + 1,
+ y: Math.ceil((gMap.pos.y + gMap.baseDim.ht / 2) / gMap.baseDim.tsize) + 1,
+ z: gMap.pos.z});
+ console.log("In range: " + tMin.x + "," + tMin.y + "," + tMin.z + " - " + tMax.x + "," + tMax.y + "," + tMax.z);
+ for (var tileKey in gMap.glTextures) {
+ var keyMatches = tileKey.match(/([^:]+)::(\d+),(\d+),(\d+)/);
+ if (keyMatches && keyMatches[1] != "loading") {
+ var txData = {
+ style: keyMatches[1],
+ x: keyMatches[2],
+ y: keyMatches[3],
+ z: keyMatches[4],
+ }
+ var delTx = false;
+ if (txData.style != gMap.activeMap) { delTx = true; console.log("Different map style: " + txData.style); }
+ if (!delTx && (txData.z < tMin.z || txData.z > tMax.z)) { delTx = true; console.log("Out-of-range zoom: " + txData.z); }
+ if (tMin.x < tMax.x) {
+ if (!delTx && (txData.x < tMin.x || txData.x > tMax.x)) { delTx = true; console.log("Out-of-range X: " + txData.x); }
+ }
+ else {
+ // We are crossing over the 0 coordinate!
+ if (!delTx && (txData.x < tMin.x && txData.x > tMax.x)) { delTx = true; console.log("Out-of-range X: " + txData.x); }
+ }
+ if (tMin.y < tMax.y) {
+ if (!delTx && (txData.y < tMin.y || txData.y > tMax.y)) { delTx = true; console.log("Out-of-range Y: " + txData.y); }
+ }
+ else {
+ // We are crossing over the 0 coordinate!
+ if (!delTx && (txData.y < tMin.y && txData.y > tMax.y)) { delTx = true; console.log("Out-of-range Y: " + txData.y); }
+ }
+ if (delTx) {
+ // Delete texture from GL and from the array we are holding.
+ gMap.gl.deleteTexture(gMap.glTextures[tileKey]);
+ delete gMap.glTextures[tileKey];
+ }
+ }
+ }
+ console.log("Cleaning complete, " + Object.keys(gMap.glTextures).length + " textures left)");
+ }
+ },
+
+ handleContextLost: function(event) {
+ event.preventDefault();
+ // GL context is gone, let's reset everything that depends on it.
+ clearInterval(gMap.glTxCleanIntervalID);
+ gMap.glTextures = {};
+ },
+
+ handleContextRestored: function(event) {
+ // When GL context is back, init GL again and draw.
+ gMap.initGL();
+ gMap.draw();
+ },
}
// Using scale(x, y) together with drawing old data on scaled canvas would be an improvement for zooming.
function zoomIn() {
if (gMap.pos.z < gMap.maxZoom) {
gMap.pos.z++;
- drawMap();
+ gMap.draw();
}
}
function zoomOut() {
if (gMap.pos.z > 0) {
gMap.pos.z--;
- drawMap();
+ gMap.draw();
}
}
aTargetLevel = parseInt(aTargetLevel);
if (aTargetLevel >= 0 && aTargetLevel <= gMap.maxZoom) {
gMap.pos.z = aTargetLevel;
- drawMap();
+ gMap.draw();
}
}
function setMapStyle() {
var mapSel = document.getElementById("mapSelector");
- if (mapSel.selectedIndex >= 0 && gMap.activeMap != mapSel.value) {
+ if (!gWaitCounter && mapSel.selectedIndex >= 0 && gMap.activeMap != mapSel.value) {
gMap.activeMap = mapSel.value;
+ gPrefs.set("active_map_style", gMap.activeMap);
document.getElementById("copyright").innerHTML =
gMapStyles[gMap.activeMap].copyright;
showUI();
- drawMap();
+ gMap.draw();
}
}
z: aCoords.z};
}
+function getTileKey(aStyle, aNormalizedCoords) {
+ return aStyle + "::" +
+ aNormalizedCoords.x + "," +
+ aNormalizedCoords.y + "," +
+ aNormalizedCoords.z;
+}
+
// Returns true if the tile is outside the current view.
function isOutsideWindow(t) {
var pos = decodeIndex(t);
var zoomFactor = Math.pow(2, gMap.maxZoom - pos.z);
- var wid = gMapCanvas.width * zoomFactor;
- var ht = gMapCanvas.height * zoomFactor;
+ var wid = gMap.width * zoomFactor;
+ var ht = gMap.height * zoomFactor;
pos.x *= zoomFactor;
pos.y *= zoomFactor;
return {x: ind[0], y: ind[1], z: ind[2]};
}
-function drawMap(aPixels, aOverdraw) {
- gMap.drawGL(aPixels, aOverdraw);
- /*
- // aPixels is an object with left/right/top/bottom members telling how many
- // pixels on the borders should actually be drawn.
- // aOverdraw is a bool that tells if we should draw placeholders or draw
- // straight over the existing content.
- if (!aPixels)
- aPixels = {left: gMapCanvas.width, right: gMapCanvas.width,
- top: gMapCanvas.height, bottom: gMapCanvas.height};
- if (!aOverdraw)
- aOverdraw = false;
-
- document.getElementById("zoomLevel").textContent = gMap.pos.z;
- gMap.zoomFactor = Math.pow(2, gMap.maxZoom - gMap.pos.z);
- var wid = gMapCanvas.width * gMap.zoomFactor; // Width in level 18 pixels.
- var ht = gMapCanvas.height * gMap.zoomFactor; // Height in level 18 pixels.
- var size = gMap.tileSize * gMap.zoomFactor; // Tile size in level 18 pixels.
-
- var xMin = gMap.pos.x - wid / 2; // Corners of the window in level 18 pixels.
- var yMin = gMap.pos.y - ht / 2;
- var xMax = gMap.pos.x + wid / 2;
- var yMax = gMap.pos.y + ht / 2;
-
- if (gMapPrefsLoaded && mainDB)
- gPrefs.set("position", gMap.pos);
-
- var tiles = {left: Math.ceil((xMin + aPixels.left * gMap.zoomFactor) / size) -
- (aPixels.left ? 0 : 1),
- right: Math.floor((xMax - aPixels.right * gMap.zoomFactor) / size) -
- (aPixels.right ? 1 : 0),
- top: Math.ceil((yMin + aPixels.top * gMap.zoomFactor) / size) -
- (aPixels.top ? 0 : 1),
- bottom: Math.floor((yMax - aPixels.bottom * gMap.zoomFactor) / size) -
- (aPixels.bottom ? 1 : 0)};
-
- // Go through all the tiles in the map, find out if to draw them and 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++) { // slow script warnings on the tablet appear here!
- // Only go to the drawing step if we need to draw this tile.
- if (x < tiles.left || x > tiles.right ||
- y < tiles.top || y > tiles.bottom) {
- // Round here is **CRUCIAL** otherwise the images are filtered
- // and the performance sucks (more than expected).
- var xoff = Math.round((x * size - xMin) / gMap.zoomFactor);
- var yoff = Math.round((y * size - yMin) / gMap.zoomFactor);
- // Draw placeholder tile unless we overdraw.
- if (!aOverdraw &&
- (x < tiles.left -1 || x > tiles.right + 1 ||
- y < tiles.top -1 || y > tiles.bottom + 1))
- gMapContext.drawImage(gLoadingTile, xoff, yoff);
-
- // Initiate loading/drawing of the actual tile.
- gTileService.get(gMap.activeMap, {x: x, y: y, z: gMap.pos.z},
- function(aImage, aStyle, aCoords, aTileKey) {
- // Only draw if this applies for the current view.
- if ((aStyle == gMap.activeMap) && (aCoords.z == gMap.pos.z)) {
- var ixMin = gMap.pos.x - wid / 2;
- var iyMin = gMap.pos.y - ht / 2;
- var ixoff = Math.round((aCoords.x * size - ixMin) / gMap.zoomFactor);
- var iyoff = Math.round((aCoords.y * size - iyMin) / gMap.zoomFactor);
- var URL = window.URL;
- var imgURL = URL.createObjectURL(aImage);
- var imgObj = new Image();
- imgObj.src = imgURL;
- imgObj.onload = function() {
- gMapContext.drawImage(imgObj, ixoff, iyoff);
- URL.revokeObjectURL(imgURL);
- }
- }
- });
- }
- }
- }
- */
- drawTrack();
-}
-
function drawTrack() {
- gLastDrawnPoint = null;
- gCurPosMapCache = undefined;
- gTrackContext.clearRect(0, 0, gTrackCanvas.width, gTrackCanvas.height);
- if (gTrack.length) {
- for (var i = 0; i < gTrack.length; i++) {
- drawTrackPoint(gTrack[i].coords.latitude, gTrack[i].coords.longitude,
- (i + 1 >= gTrack.length));
+ if (gTrackContext && (document.hidden != true)) { // Only draw if we're actually visible.
+ gLastDrawnPoint = null;
+ gCurPosMapCache = undefined;
+ gTrackContext.clearRect(0, 0, gTrackCanvas.width, gTrackCanvas.height);
+ if (gTrack.length) {
+ for (var i = 0; i < gTrack.length; i++) {
+ drawTrackPoint(gTrack[i].coords.latitude, gTrack[i].coords.longitude,
+ (i + 1 >= gTrack.length || gTrack[i+1].beginSegment));
+ }
}
}
}
var trackpoint = gps2xy(aLatitude, aLongitude);
// lastPoint is for optimizing (not actually executing the draw until the last)
trackpoint.optimized = (lastPoint === false);
- var mappos = {x: Math.round((trackpoint.x - gMap.pos.x) / gMap.zoomFactor + gMapCanvas.width / 2),
- y: Math.round((trackpoint.y - gMap.pos.y) / gMap.zoomFactor + gMapCanvas.height / 2)};
+ var mappos = {x: Math.round((trackpoint.x - gMap.pos.x) / gMap.zoomFactor + gMap.width / 2),
+ y: Math.round((trackpoint.y - gMap.pos.y) / gMap.zoomFactor + gMap.height / 2)};
if (!gLastDrawnPoint || !gLastDrawnPoint.optimized) {
gTrackContext.strokeStyle = gTrackColor;
gTrackContext.lineCap = "round";
gTrackContext.lineJoin = "round";
}
+ // This breaks optimiziation, so make sure to reset optimization.
if (!gLastDrawnPoint || gLastDrawnPoint == trackpoint) {
- // This breaks optimiziation, so make sure to close path and reset optimization.
- if (gLastDrawnPoint && gLastDrawnPoint.optimized)
+ trackpoint.optimized = false;
+ // Close path if one was open.
+ if (gLastDrawnPoint && gLastDrawnPoint.optimized) {
gTrackContext.stroke();
+ }
+ }
+ if (!gLastDrawnPoint || (gLastDrawnPoint == trackpoint) || !gLastDrawnPoint.optimized) {
+ // Start drawing a segment.
gTrackContext.beginPath();
- trackpoint.optimized = false;
gTrackContext.arc(mappos.x, mappos.y,
gTrackContext.lineWidth, 0, Math.PI * 2, false);
gTrackContext.fill();
}
else {
- if (!gLastDrawnPoint || !gLastDrawnPoint.optimized) {
- gTrackContext.beginPath();
- gTrackContext.moveTo(Math.round((gLastDrawnPoint.x - gMap.pos.x) / gMap.zoomFactor + gMapCanvas.width / 2),
- Math.round((gLastDrawnPoint.y - gMap.pos.y) / gMap.zoomFactor + gMapCanvas.height / 2));
- }
+ // Continue drawing segment, close if needed.
gTrackContext.lineTo(mappos.x, mappos.y);
if (!trackpoint.optimized)
gTrackContext.stroke();
function drawCurrentLocation(trackPoint) {
var locpoint = gps2xy(trackPoint.coords.latitude, trackPoint.coords.longitude);
var circleRadius = Math.round(gCurLocSize / 2);
- var mappos = {x: Math.round((locpoint.x - gMap.pos.x) / gMap.zoomFactor + gMapCanvas.width / 2),
- y: Math.round((locpoint.y - gMap.pos.y) / gMap.zoomFactor + gMapCanvas.height / 2)};
+ var mappos = {x: Math.round((locpoint.x - gMap.pos.x) / gMap.zoomFactor + gMap.width / 2),
+ y: Math.round((locpoint.y - gMap.pos.y) / gMap.zoomFactor + gMap.height / 2)};
undrawCurrentLocation();
function undrawCurrentLocation() {
if (gCurPosMapCache) {
var oldpoint = gCurPosMapCache.point;
- var oldmp = {x: Math.round((oldpoint.x - gMap.pos.x) / gMap.zoomFactor + gMapCanvas.width / 2),
- y: Math.round((oldpoint.y - gMap.pos.y) / gMap.zoomFactor + gMapCanvas.height / 2)};
+ var oldmp = {x: Math.round((oldpoint.x - gMap.pos.x) / gMap.zoomFactor + gMap.width / 2),
+ y: Math.round((oldpoint.y - gMap.pos.y) / gMap.zoomFactor + gMap.height / 2)};
gTrackContext.putImageData(gCurPosMapCache.data,
oldmp.x - gCurPosMapCache.radius,
oldmp.y - gCurPosMapCache.radius);
}
}
+function calcTrackDuration() {
+ // Get the duration of the track in s.
+ var tDuration = 0;
+ if (gTrack.length > 1) {
+ for (var i = 1; i < gTrack.length; i++) {
+ if (!gTrack[i].beginSegment) {
+ tDuration += (gTrack[i].time - gTrack[i-1].time);
+ }
+ }
+ }
+ return Math.round(tDuration / 1000); // The timestamps are in ms but we return seconds.
+}
+
+function calcTrackLength() {
+ // Get the length of the track in km.
+ var tLength = 0;
+ if (gTrack.length > 1) {
+ for (var i = 1; i < gTrack.length; i++) {
+ if (!gTrack[i].beginSegment) {
+ tLength += getPointDistance(gTrack[i-1].coords, gTrack[i].coords);
+ }
+ }
+ }
+ return tLength;
+}
+
+function getPointDistance(aGPSPoint1, aGPSPoint2) {
+ // Get the distance in km between the two given GPS points.
+ // See http://stackoverflow.com/questions/365826/calculate-distance-between-2-gps-coordinates
+ // Earth is almost exactly a sphere and we calculate small distances on the surface, so we can do spherical great-circle math.
+ // Also see http://en.wikipedia.org/wiki/Great-circle_distance
+ var R = 6371; // km
+ var dLat = deg2rad(aGPSPoint2.latitude - aGPSPoint1.latitude);
+ var dLon = deg2rad(aGPSPoint2.longitude - aGPSPoint1.longitude);
+ var lat1 = deg2rad(aGPSPoint1.latitude);
+ var lat2 = deg2rad(aGPSPoint2.latitude);
+
+ var a = Math.sin(dLat/2) * Math.sin(dLat/2) +
+ Math.sin(dLon/2) * Math.sin(dLon/2) * Math.cos(lat1) * Math.cos(lat2);
+ var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a));
+ return R * c;
+}
+
+function deg2rad(aDegreeValue) {
+ // Convert an angle in degrees to radiants.
+ return aDegreeValue * (Math.PI / 180);
+}
+
var mapEvHandler = {
handleEvent: function(aEvent) {
var touchEvent = aEvent.type.indexOf('touch') != -1;
gDragTouchID = aEvent.changedTouches.item(0).identifier;
coordObj = aEvent.changedTouches.identifiedTouch(gDragTouchID);
}
- var x = coordObj.clientX - gMapCanvas.offsetLeft;
- var y = coordObj.clientY - gMapCanvas.offsetTop;
+ var x = coordObj.clientX - gGLMapCanvas.offsetLeft;
+ var y = coordObj.clientY - gGLMapCanvas.offsetTop;
if (touchEvent || aEvent.button === 0) {
gDragging = true;
// must equal pixel distance of new center and middle.
var x = (aEvent.targetTouches.item(1).clientX +
aEvent.targetTouches.item(0).clientX) / 2 -
- gMapCanvas.offsetLeft;
+ gGLMapCanvas.offsetLeft;
var y = (aEvent.targetTouches.item(1).clientY +
aEvent.targetTouches.item(0).clientY) / 2 -
- gMapCanvas.offsetTop;
+ gGLMapCanvas.offsetTop;
// Zoom factor after this action.
var newZoomFactor = Math.pow(2, gMap.maxZoom - newZoomLevel);
- gMap.pos.x -= (x - gMapCanvas.width / 2) * (newZoomFactor - gMap.zoomFactor);
- gMap.pos.y -= (y - gMapCanvas.height / 2) * (newZoomFactor - gMap.zoomFactor);
+ gMap.pos.x -= (x - gMap.width / 2) * (newZoomFactor - gMap.zoomFactor);
+ gMap.pos.y -= (y - gMap.height / 2) * (newZoomFactor - gMap.zoomFactor);
if (gPinchStartWidth < curPinchStartWidth)
zoomIn();
// If we are in a pinch, do not drag.
break;
}
- var x = coordObj.clientX - gMapCanvas.offsetLeft;
- var y = coordObj.clientY - gMapCanvas.offsetTop;
+ var x = coordObj.clientX - gGLMapCanvas.offsetLeft;
+ var y = coordObj.clientY - gGLMapCanvas.offsetTop;
if (gDragging === true) {
var dX = x - gLastMouseX;
var dY = y - gLastMouseY;
gMap.pos.x -= dX * gMap.zoomFactor;
gMap.pos.y -= dY * gMap.zoomFactor;
- if (true) { // use optimized path
- var mapData = gMapContext.getImageData(0, 0,
- gMapCanvas.width,
- gMapCanvas.height);
- gMapContext.clearRect(0, 0, gMapCanvas.width, gMapCanvas.height);
- gMapContext.putImageData(mapData, dX, dY);
- drawMap({left: (dX > 0) ? dX : 0,
- right: (dX < 0) ? -dX : 0,
- top: (dY > 0) ? dY : 0,
- bottom: (dY < 0) ? -dY : 0});
- }
- else {
- drawMap(false, true);
- }
+ gMap.draw();
showUI();
}
gLastMouseX = x;
// Debug output: "coordinates" of the point the mouse was over.
/*
- var ptCoord = {x: gMap.pos.x + (x - gMapCanvas.width / 2) * gMap.zoomFactor,
- y: gMap.pos.y + (x - gMapCanvas.height / 2) * gMap.zoomFactor};
+ var ptCoord = {x: gMap.pos.x + (x - gMap.width / 2) * gMap.zoomFactor,
+ y: gMap.pos.y + (x - gMap.height / 2) * gMap.zoomFactor};
var gpsCoord = xy2gps(ptCoord.x, ptCoord.y);
var pt2Coord = gps2xy(gpsCoord.latitude, gpsCoord.longitude);
console.log(ptCoord.x + "/" + ptCoord.y + " - " +
// Calculate new center of the map - same point stays under the mouse.
// This means that the pixel distance between the old center and point
// must equal the pixel distance of the new center and that point.
- var x = coordObj.clientX - gMapCanvas.offsetLeft;
- var y = coordObj.clientY - gMapCanvas.offsetTop;
+ var x = coordObj.clientX - gGLMapCanvas.offsetLeft;
+ var y = coordObj.clientY - gGLMapCanvas.offsetTop;
// Zoom factor after this action.
var newZoomFactor = Math.pow(2, gMap.maxZoom - newZoomLevel);
- gMap.pos.x -= (x - gMapCanvas.width / 2) * (newZoomFactor - gMap.zoomFactor);
- gMap.pos.y -= (y - gMapCanvas.height / 2) * (newZoomFactor - gMap.zoomFactor);
+ gMap.pos.x -= (x - gMap.width / 2) * (newZoomFactor - gMap.zoomFactor);
+ gMap.pos.y -= (y - gMap.height / 2) * (newZoomFactor - gMap.zoomFactor);
if (aEvent.deltaY < 0)
zoomIn();
if (dX || dY) {
gMap.pos.x -= dX * gMap.zoomFactor;
gMap.pos.y -= dY * gMap.zoomFactor;
- if (true) { // use optimized path
- var mapData = gMapContext.getImageData(0, 0,
- gMapCanvas.width,
- gMapCanvas.height);
- gMapContext.clearRect(0, 0, gMapCanvas.width, gMapCanvas.height);
- gMapContext.putImageData(mapData, dX, dY);
- drawMap({left: (dX > 0) ? dX : 0,
- right: (dX < 0) ? -dX : 0,
- top: (dY > 0) ? dY : 0,
- bottom: (dY < 0) ? -dY : 0});
- }
- else {
- drawMap(false, true);
- }
+ gMap.draw();
}
break;
}
}
};
+function visibilityEvHandler() {
+ // Immediately draw if we just got visible.
+ if (document.hidden != true) {
+ gMap.draw();
+ }
+ // No need to handle the event where we become invisible as we care only draw
+ // when we are visible anyhow.
+}
+
var geofake = {
tracking: false,
lastPos: {x: undefined, y: undefined},
if (gCenterPosition) {
var posCoord = gps2xy(position.coords.latitude,
position.coords.longitude);
- if (Math.abs(gMap.pos.x - posCoord.x) > gMapCanvas.width * gMap.zoomFactor / 4 ||
- Math.abs(gMap.pos.y - posCoord.y) > gMapCanvas.height * gMap.zoomFactor / 4) {
+ if (Math.abs(gMap.pos.x - posCoord.x) > gMap.width * gMap.zoomFactor / 4 ||
+ Math.abs(gMap.pos.y - posCoord.y) > gMap.height * gMap.zoomFactor / 4) {
gMap.pos.x = posCoord.x;
gMap.pos.y = posCoord.y;
- drawMap(); // This draws the current point as well.
+ gMap.draw(); // This draws the current point as well.
redrawn = true;
}
}
get: function(aStyle, aCoords, aCallback) {
var norm = normalizeCoords(aCoords);
- var dbkey = aStyle + "::" + norm.x + "," + norm.y + "," + norm.z;
+ var dbkey = getTileKey(aStyle, norm);
this.getDBCache(dbkey, function(aResult, aEvent) {
if (aResult) {
// We did get a cached object.
.replace("{x}", norm.x)
.replace("{y}", norm.y)
.replace("{z}", norm.z)
- .replace("[a-c]", String.fromCharCode(97 + Math.floor(Math.random() * 2)))
- .replace("[1-4]", 1 + Math.floor(Math.random() * 3)),
+ .replace("[a-c]", String.fromCharCode(97 + Math.floor(Math.random() * 3)))
+ .replace("[a-d]", String.fromCharCode(97 + Math.floor(Math.random() * 4)))
+ .replace("[1-4]", 1 + Math.floor(Math.random() * 4)),
true);
XHR.responseType = "blob";
XHR.addEventListener("load", function () {
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