Commit | Line | Data |
---|---|---|
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 | |
ac6286bd | 5 | var gGLMapCanvas, gTrackCanvas, gTrackContext, gGeolocation; |
0dc9cd0d | 6 | var gDebug = false; |
23cd2dcc | 7 | |
b054bd48 RK |
8 | var gMinTrackAccuracy = 1000; // meters |
9 | var gTrackWidth = 2; // pixels | |
10 | var gTrackColor = "#FF0000"; | |
4b1d0915 RK |
11 | var gCurLocSize = 6; // pixels |
12 | var gCurLocColor = "#A00000"; | |
b054bd48 | 13 | |
b47b4a65 RK |
14 | var gMapStyles = { |
15 | // OSM tile usage policy: http://wiki.openstreetmap.org/wiki/Tile_usage_policy | |
55c4a0b7 | 16 | // Find some more OSM ones at http://wiki.openstreetmap.org/wiki/Slippy_map_tilenames#Tile_servers |
b47b4a65 RK |
17 | osm_mapnik: |
18 | {name: "OpenStreetMap (Mapnik)", | |
19 | url: "http://tile.openstreetmap.org/{z}/{x}/{y}.png", | |
5a19ec68 | 20 | 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>'}, |
14e6d3ad RK |
21 | osm_cyclemap: |
22 | {name: "Cycle Map (OSM)", | |
23 | url: "http://[a-c].tile.opencyclemap.org/cycle/{z}/{x}/{y}.png", | |
5a19ec68 | 24 | 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>'}, |
14e6d3ad RK |
25 | osm_transmap: |
26 | {name: "Transport Map (OSM)", | |
27 | url: "http://[a-c].tile2.opencyclemap.org/transport/{z}/{x}/{y}.png", | |
5a19ec68 | 28 | 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>'}, |
b47b4a65 | 29 | mapquest_open: |
55c4a0b7 | 30 | {name: "MapQuest OSM", |
5a19ec68 RK |
31 | url: "http://otile[1-4].mqcdn.com/tiles/1.0.0/osm/{z}/{x}/{y}.png", |
32 | 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>.'}, | |
55c4a0b7 RK |
33 | mapquest_aerial: |
34 | {name: "MapQuest Open Aerial", | |
68afcd96 | 35 | url: "http://otile[1-4].mqcdn.com/tiles/1.0.0/sat/{z}/{x}/{y}.jpg", |
5a19ec68 RK |
36 | 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.'}, |
37 | opengeoserver_arial: | |
38 | {name: "OpenGeoServer Aerial", | |
39 | url: "http://services.opengeoserver.org/tiles/1.0.0/globe.aerial_EPSG3857/{z}/{x}/{y}.png?origin=nw", | |
40 | 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>.'}, | |
55c4a0b7 RK |
41 | google_map: |
42 | {name: "Google Maps", | |
43 | url: " http://mt1.google.com/vt/x={x}&y={y}&z={z}", | |
44 | copyright: 'Map data and imagery © <a href="http://maps.google.com/">Google</a>'}, | |
b47b4a65 | 45 | }; |
23cd2dcc RK |
46 | |
47 | var gLastMouseX = 0; | |
48 | var gLastMouseY = 0; | |
49 | ||
b395419b | 50 | var gLoadingTile; |
23cd2dcc | 51 | |
3610c22d RK |
52 | var gMapPrefsLoaded = false; |
53 | ||
23cd2dcc | 54 | var gDragging = false; |
517c0099 | 55 | var gDragTouchID, gPinchStartWidth; |
23cd2dcc | 56 | |
55c4a0b7 RK |
57 | var gGeoWatchID; |
58 | var gTrack = []; | |
14e6d3ad | 59 | var gLastTrackPoint, gLastDrawnPoint; |
05c21757 | 60 | var gCenterPosition = true; |
55c4a0b7 | 61 | |
b054bd48 RK |
62 | var gCurPosMapCache; |
63 | ||
b47b4a65 | 64 | function initMap() { |
4b12da3a | 65 | gGeolocation = navigator.geolocation; |
ac6286bd RK |
66 | // Set up canvas context. |
67 | gGLMapCanvas = document.getElementById("map"); | |
ecde0af2 RK |
68 | try { |
69 | // Try to grab the standard context. If it fails, fallback to experimental. | |
70 | // We also try to tell it we do not need a depth buffer. | |
edc3be71 RK |
71 | gMap.gl = gGLMapCanvas.getContext("webgl", {depth: false}) || |
72 | gGLMapCanvas.getContext("experimental-webgl", {depth: false}); | |
ecde0af2 RK |
73 | } |
74 | catch(e) {} | |
75 | // If we don't have a GL context, give up now | |
edc3be71 | 76 | if (!gMap.gl) { |
ecde0af2 | 77 | showGLWarningDialog(); |
edc3be71 | 78 | gMap.gl = null; |
ecde0af2 | 79 | } |
4b1d0915 RK |
80 | gTrackCanvas = document.getElementById("track"); |
81 | gTrackContext = gTrackCanvas.getContext("2d"); | |
dda55132 RK |
82 | if (!gMap.activeMap) |
83 | gMap.activeMap = "osm_mapnik"; | |
23cd2dcc | 84 | |
4b12da3a RK |
85 | //gDebug = true; |
86 | if (gDebug) { | |
87 | gGeolocation = geofake; | |
88 | var hiddenList = document.getElementsByClassName("debugHide"); | |
89 | // last to first - list of elements with that class is changing! | |
90 | for (var i = hiddenList.length - 1; i >= 0; i--) { | |
91 | hiddenList[i].classList.remove("debugHide"); | |
92 | } | |
93 | } | |
94 | ||
edc3be71 | 95 | gAction.addEventListener("prefload-done", gMap.initGL, false); |
ecde0af2 | 96 | |
582d50fc RK |
97 | console.log("map vars set, loading prefs..."); |
98 | loadPrefs(); | |
99 | } | |
b395419b | 100 | |
582d50fc RK |
101 | function loadPrefs(aEvent) { |
102 | if (aEvent && aEvent.type == "prefs-step") { | |
103 | console.log("wait: " + gWaitCounter); | |
104 | if (gWaitCounter == 0) { | |
105 | gAction.removeEventListener(aEvent.type, loadPrefs, false); | |
106 | gMapPrefsLoaded = true; | |
107 | console.log("prefs loaded."); | |
108 | ||
109 | gTrackCanvas.addEventListener("mouseup", mapEvHandler, false); | |
110 | gTrackCanvas.addEventListener("mousemove", mapEvHandler, false); | |
111 | gTrackCanvas.addEventListener("mousedown", mapEvHandler, false); | |
112 | gTrackCanvas.addEventListener("mouseout", mapEvHandler, false); | |
113 | ||
114 | gTrackCanvas.addEventListener("touchstart", mapEvHandler, false); | |
115 | gTrackCanvas.addEventListener("touchmove", mapEvHandler, false); | |
116 | gTrackCanvas.addEventListener("touchend", mapEvHandler, false); | |
117 | gTrackCanvas.addEventListener("touchcancel", mapEvHandler, false); | |
118 | gTrackCanvas.addEventListener("touchleave", mapEvHandler, false); | |
119 | ||
120 | gTrackCanvas.addEventListener("wheel", mapEvHandler, false); | |
121 | ||
122 | document.getElementById("body").addEventListener("keydown", mapEvHandler, false); | |
123 | ||
124 | document.getElementById("copyright").innerHTML = | |
dda55132 | 125 | gMapStyles[gMap.activeMap].copyright; |
582d50fc RK |
126 | |
127 | gLoadingTile = new Image(); | |
128 | gLoadingTile.src = "style/loading.png"; | |
129 | gLoadingTile.onload = function() { | |
ecde0af2 | 130 | var throwEv = new CustomEvent("prefload-done"); |
582d50fc RK |
131 | gAction.dispatchEvent(throwEv); |
132 | }; | |
133 | } | |
134 | } | |
135 | else { | |
136 | if (aEvent) | |
137 | gAction.removeEventListener(aEvent.type, loadPrefs, false); | |
138 | gAction.addEventListener("prefs-step", loadPrefs, false); | |
139 | gWaitCounter++; | |
140 | gPrefs.get("position", function(aValue) { | |
ac6286bd | 141 | if (aValue && aValue.x && aValue.y && aValue.z) { |
dda55132 | 142 | gMap.pos = aValue; |
582d50fc | 143 | } |
df81068a RK |
144 | gWaitCounter--; |
145 | var throwEv = new CustomEvent("prefs-step"); | |
146 | gAction.dispatchEvent(throwEv); | |
582d50fc RK |
147 | }); |
148 | gWaitCounter++; | |
149 | gPrefs.get("center_map", function(aValue) { | |
150 | if (aValue === undefined) | |
151 | document.getElementById("centerCheckbox").checked = true; | |
152 | else | |
153 | document.getElementById("centerCheckbox").checked = aValue; | |
154 | setCentering(document.getElementById("centerCheckbox")); | |
155 | gWaitCounter--; | |
156 | var throwEv = new CustomEvent("prefs-step"); | |
157 | gAction.dispatchEvent(throwEv); | |
158 | }); | |
159 | gWaitCounter++; | |
160 | gPrefs.get("tracking_enabled", function(aValue) { | |
161 | if (aValue === undefined) | |
162 | document.getElementById("trackCheckbox").checked = true; | |
163 | else | |
164 | document.getElementById("trackCheckbox").checked = aValue; | |
165 | gWaitCounter--; | |
166 | var throwEv = new CustomEvent("prefs-step"); | |
167 | gAction.dispatchEvent(throwEv); | |
168 | }); | |
169 | gWaitCounter++; | |
cef88e12 RK |
170 | var trackLoadStarted = false; |
171 | var redrawBase = 100; | |
6ddefbf9 RK |
172 | gTrackStore.getListStepped(function(aTPoint) { |
173 | if (aTPoint) { | |
174 | // Add in front and return new length. | |
175 | var tracklen = gTrack.unshift(aTPoint); | |
fdaf08db RK |
176 | // Redraw track periodically, larger distance the longer it gets. |
177 | // Initial paint will do initial track drawing. | |
178 | if (tracklen % redrawBase == 0) { | |
6ddefbf9 | 179 | drawTrack(); |
fdaf08db RK |
180 | redrawBase = tracklen; |
181 | } | |
6ddefbf9 RK |
182 | } |
183 | else { | |
184 | // Last point received. | |
185 | drawTrack(); | |
186 | } | |
187 | if (!trackLoadStarted) { | |
188 | // We have the most recent point, if present, rest will load async. | |
189 | trackLoadStarted = true; | |
190 | gWaitCounter--; | |
191 | var throwEv = new CustomEvent("prefs-step"); | |
192 | gAction.dispatchEvent(throwEv); | |
582d50fc | 193 | } |
582d50fc RK |
194 | }); |
195 | } | |
23cd2dcc RK |
196 | } |
197 | ||
edc3be71 RK |
198 | var gMap = { |
199 | gl: null, | |
200 | glShaderProgram: null, | |
201 | glVertexPositionAttr: null, | |
202 | glTextureCoordAttr: null, | |
203 | glResolutionAttr: null, | |
204 | glMapTexture: null, | |
e8525b46 RK |
205 | glTextures: {}, |
206 | glTextureKeys: {}, | |
edc3be71 | 207 | |
dda55132 RK |
208 | activeMap: "osm_mapnik", |
209 | tileSize: 256, | |
210 | maxZoom: 18, // The minimum is 0. | |
211 | zoomFactor: null, | |
212 | pos: { | |
213 | x: 35630000.0, // Current position in the map in pixels at the maximum zoom level (18) | |
214 | y: 23670000.0, // The range is 0-67108864 (2^gMap.maxZoom * gMap.tileSize) | |
215 | z: 5 // This could be fractional if supported being between zoom levels. | |
216 | }, | |
217 | ||
ac6286bd RK |
218 | get width() { return gMap.gl ? gMap.gl.drawingBufferWidth : gGLMapCanvas.width; }, |
219 | get height() { return gMap.gl ? gMap.gl.drawingBufferHeight : gGLMapCanvas.height; }, | |
220 | ||
edc3be71 RK |
221 | getVertShaderSource: function() { |
222 | return 'attribute vec2 aVertexPosition;\n' + | |
223 | 'attribute vec2 aTextureCoord;\n\n' + | |
224 | 'uniform vec2 uResolution;\n\n' + | |
225 | 'varying highp vec2 vTextureCoord;\n\n' + | |
226 | 'void main(void) {\n' + | |
227 | // convert the rectangle from pixels to -1.0 to +1.0 (clipspace) 0.0 to 1.0 | |
228 | ' vec2 clipSpace = aVertexPosition * 2.0 / uResolution - 1.0;\n' + | |
229 | ' gl_Position = vec4(clipSpace * vec2(1, -1), 0, 1);\n' + | |
230 | ' vTextureCoord = aTextureCoord;\n' + | |
231 | '}'; }, | |
232 | getFragShaderSource:function() { | |
233 | return 'varying highp vec2 vTextureCoord;\n\n' + | |
234 | 'uniform sampler2D uImage;\n\n' + | |
235 | 'void main(void) {\n' + | |
236 | ' gl_FragColor = texture2D(uImage, vTextureCoord);\n' + | |
237 | '}'; }, | |
238 | ||
239 | initGL: function() { | |
240 | // When called from the event listener, the "this" reference doesn't work, so use the object name. | |
241 | if (gMap.gl) { | |
242 | gMap.gl.viewport(0, 0, gMap.gl.drawingBufferWidth, gMap.gl.drawingBufferHeight); | |
243 | gMap.gl.clearColor(0.0, 0.0, 0.0, 0.5); // Set clear color to black, fully opaque. | |
244 | gMap.gl.clear(gMap.gl.COLOR_BUFFER_BIT|gMap.gl.DEPTH_BUFFER_BIT); // Clear the color. | |
245 | ||
246 | // Create and initialize the shaders. | |
247 | var vertShader = gMap.gl.createShader(gMap.gl.VERTEX_SHADER); | |
248 | var fragShader = gMap.gl.createShader(gMap.gl.FRAGMENT_SHADER); | |
249 | gMap.gl.shaderSource(vertShader, gMap.getVertShaderSource()); | |
250 | // Compile the shader program. | |
251 | gMap.gl.compileShader(vertShader); | |
252 | // See if it compiled successfully. | |
253 | if (!gMap.gl.getShaderParameter(vertShader, gMap.gl.COMPILE_STATUS)) { | |
254 | console.log("An error occurred compiling the vertex shader: " + gMap.gl.getShaderInfoLog(vertShader)); | |
255 | return null; | |
256 | } | |
257 | gMap.gl.shaderSource(fragShader, gMap.getFragShaderSource()); | |
258 | // Compile the shader program. | |
259 | gMap.gl.compileShader(fragShader); | |
260 | // See if it compiled successfully. | |
261 | if (!gMap.gl.getShaderParameter(fragShader, gMap.gl.COMPILE_STATUS)) { | |
262 | console.log("An error occurred compiling the fragment shader: " + gMap.gl.getShaderInfoLog(fragShader)); | |
263 | return null; | |
264 | } | |
ecde0af2 | 265 | |
edc3be71 RK |
266 | gMap.glShaderProgram = gMap.gl.createProgram(); |
267 | gMap.gl.attachShader(gMap.glShaderProgram, vertShader); | |
268 | gMap.gl.attachShader(gMap.glShaderProgram, fragShader); | |
269 | gMap.gl.linkProgram(gMap.glShaderProgram); | |
270 | // If creating the shader program failed, alert | |
271 | if (!gMap.gl.getProgramParameter(gMap.glShaderProgram, gMap.gl.LINK_STATUS)) { | |
272 | alert("Unable to initialize the shader program."); | |
273 | } | |
274 | gMap.gl.useProgram(gMap.glShaderProgram); | |
275 | // Get locations of the attributes. | |
276 | gMap.glVertexPositionAttr = gMap.gl.getAttribLocation(gMap.glShaderProgram, "aVertexPosition"); | |
277 | gMap.glTextureCoordAttr = gMap.gl.getAttribLocation(gMap.glShaderProgram, "aTextureCoord"); | |
278 | gMap.glResolutionAttr = gMap.gl.getUniformLocation(gMap.glShaderProgram, "uResolution"); | |
279 | ||
280 | var tileVerticesBuffer = gMap.gl.createBuffer(); | |
281 | gMap.gl.bindBuffer(gMap.gl.ARRAY_BUFFER, tileVerticesBuffer); | |
282 | // The vertices are the coordinates of the corner points of the square. | |
283 | var vertices = [ | |
284 | 0.0, 0.0, | |
285 | 1.0, 0.0, | |
286 | 0.0, 1.0, | |
287 | 0.0, 1.0, | |
288 | 1.0, 0.0, | |
289 | 1.0, 1.0, | |
290 | ]; | |
291 | gMap.gl.bufferData(gMap.gl.ARRAY_BUFFER, new Float32Array(vertices), gMap.gl.STATIC_DRAW); | |
292 | gMap.gl.enableVertexAttribArray(gMap.glTextureCoordAttr); | |
293 | gMap.gl.vertexAttribPointer(gMap.glTextureCoordAttr, 2, gMap.gl.FLOAT, false, 0, 0); | |
294 | ||
e8525b46 | 295 | gMap.loadImageToTexture(gLoadingTile, 0, "loading::0,0,0"); |
edc3be71 RK |
296 | |
297 | gMap.gl.uniform2f(gMap.glResolutionAttr, gGLMapCanvas.width, gGLMapCanvas.height); | |
298 | ||
299 | // Create a buffer for the position of the rectangle corners. | |
300 | var mapVerticesTextureCoordBuffer = gMap.gl.createBuffer(); | |
301 | gMap.gl.bindBuffer(gMap.gl.ARRAY_BUFFER, mapVerticesTextureCoordBuffer); | |
302 | gMap.gl.enableVertexAttribArray(gMap.glVertexPositionAttr); | |
303 | gMap.gl.vertexAttribPointer(gMap.glVertexPositionAttr, 2, gMap.gl.FLOAT, false, 0, 0); | |
ecde0af2 | 304 | } |
edc3be71 RK |
305 | |
306 | var throwEv = new CustomEvent("mapinit-done"); | |
307 | gAction.dispatchEvent(throwEv); | |
308 | }, | |
309 | ||
ac6286bd | 310 | draw: function(aPixels, aOverdraw) { |
b9707ee0 | 311 | gMap.assembleGL(aPixels); |
ac6286bd | 312 | drawTrack(); |
dda55132 | 313 | }, |
ecde0af2 | 314 | |
b9707ee0 | 315 | assembleGL: function(aPixels) { |
dda55132 RK |
316 | if (!gMap.gl) { return; } |
317 | // aPixels is an object with left/right/top/bottom members telling how many | |
318 | // pixels on the borders should actually be drawn. | |
b9707ee0 | 319 | if (!aPixels) |
dda55132 RK |
320 | aPixels = {left: gMap.gl.drawingBufferWidth, right: gMap.gl.drawingBufferWidth, |
321 | top: gMap.gl.drawingBufferHeight, bottom: gMap.gl.drawingBufferHeight}; | |
dda55132 RK |
322 | |
323 | document.getElementById("zoomLevel").textContent = gMap.pos.z; | |
324 | gMap.zoomFactor = Math.pow(2, gMap.maxZoom - gMap.pos.z); | |
325 | var wid = gMap.gl.drawingBufferWidth * gMap.zoomFactor; // Width in level 18 pixels. | |
326 | var ht = gMap.gl.drawingBufferHeight * gMap.zoomFactor; // Height in level 18 pixels. | |
327 | var size = gMap.tileSize * gMap.zoomFactor; // Tile size in level 18 pixels. | |
328 | ||
329 | var xMin = gMap.pos.x - wid / 2; // Corners of the window in level 18 pixels. | |
330 | var yMin = gMap.pos.y - ht / 2; | |
331 | var xMax = gMap.pos.x + wid / 2; | |
332 | var yMax = gMap.pos.y + ht / 2; | |
333 | ||
334 | if (gMapPrefsLoaded && mainDB) | |
335 | gPrefs.set("position", gMap.pos); | |
336 | ||
337 | var tiles = {left: Math.ceil((xMin + aPixels.left * gMap.zoomFactor) / size) - | |
338 | (aPixels.left ? 0 : 1), | |
339 | right: Math.floor((xMax - aPixels.right * gMap.zoomFactor) / size) - | |
340 | (aPixels.right ? 1 : 0), | |
341 | top: Math.ceil((yMin + aPixels.top * gMap.zoomFactor) / size) - | |
342 | (aPixels.top ? 0 : 1), | |
343 | bottom: Math.floor((yMax - aPixels.bottom * gMap.zoomFactor) / size) - | |
344 | (aPixels.bottom ? 1 : 0)}; | |
345 | ||
346 | // Go through all the tiles in the map, find out if to draw them and do so. | |
347 | for (var x = Math.floor(xMin / size); x < Math.ceil(xMax / size); x++) { | |
348 | for (var y = Math.floor(yMin / size); y < Math.ceil(yMax / size); y++) { // slow script warnings on the tablet appear here! | |
b9707ee0 | 349 | // Only go to loading step if we need to fetch the image for this tile. |
dda55132 RK |
350 | if (x < tiles.left || x > tiles.right || |
351 | y < tiles.top || y > tiles.bottom) { | |
dda55132 RK |
352 | // Initiate loading/drawing of the actual tile. |
353 | gTileService.get(gMap.activeMap, {x: x, y: y, z: gMap.pos.z}, | |
b9707ee0 RK |
354 | function(aImage, aStyle, aCoords, aTileKey) { |
355 | // Only load if this applies for the current view. | |
dda55132 | 356 | if ((aStyle == gMap.activeMap) && (aCoords.z == gMap.pos.z)) { |
b9707ee0 RK |
357 | var txIndex = gMap.glTextureKeys[aTileKey]; |
358 | if (!txIndex) { | |
359 | var URL = window.URL; | |
360 | var imgURL = URL.createObjectURL(aImage); | |
361 | var imgObj = new Image(); | |
362 | imgObj.onload = function() { | |
363 | var txNr = 1; | |
364 | while (gMap.glTextures["tx" + txNr]) { txNr++; } | |
365 | gMap.loadImageToTexture(imgObj, txNr, aTileKey); | |
366 | requestAnimationFrame(function(aTimestamp) { gMap.drawGL() }); | |
367 | URL.revokeObjectURL(imgURL); | |
e8525b46 | 368 | } |
b9707ee0 | 369 | imgObj.src = imgURL; |
dda55132 RK |
370 | } |
371 | } | |
372 | }); | |
dda55132 RK |
373 | } |
374 | } | |
375 | } | |
b9707ee0 RK |
376 | requestAnimationFrame(function(aTimestamp) { gMap.drawGL() }); |
377 | }, | |
378 | ||
379 | drawGL: function() { | |
380 | var wid = gMap.gl.drawingBufferWidth * gMap.zoomFactor; // Width in level 18 pixels. | |
381 | var ht = gMap.gl.drawingBufferHeight * gMap.zoomFactor; // Height in level 18 pixels. | |
382 | var size = gMap.tileSize * gMap.zoomFactor; // Tile size in level 18 pixels. | |
383 | ||
384 | var xMin = gMap.pos.x - wid / 2; // Corners of the window in level 18 pixels. | |
385 | var yMin = gMap.pos.y - ht / 2; | |
386 | var xMax = gMap.pos.x + wid / 2; | |
387 | var yMax = gMap.pos.y + ht / 2; | |
388 | ||
389 | var txIndexList = []; | |
390 | // Go through all the tiles in the map, find out if to draw them and do so. | |
391 | for (var x = Math.floor(xMin / size); x < Math.ceil(xMax / size); x++) { | |
392 | for (var y = Math.floor(yMin / size); y < Math.ceil(yMax / size); y++) { // slow script warnings on the tablet appear here! | |
393 | // Round here is **CRUCIAL** otherwise the images are filtered | |
394 | // and the performance sucks (more than expected). | |
395 | var xoff = Math.round((x * size - xMin) / gMap.zoomFactor); | |
396 | var yoff = Math.round((y * size - yMin) / gMap.zoomFactor); | |
397 | // Draw the tile, first find out the index of the texture to use. | |
398 | var norm = normalizeCoords({x: x, y: y, z: gMap.pos.z}); | |
399 | var tileKey = getTileKey(gMap.activeMap, norm); | |
400 | var txIndex = gMap.glTextureKeys[tileKey]; | |
401 | if (!txIndex) { txIndex = 0; } | |
402 | txIndexList.push(txIndex); | |
403 | gMap.drawTileGL(xoff, yoff, txIndex); | |
404 | } | |
405 | } | |
406 | console.log("Used Indexes: " + txIndexList.join(",")); | |
dda55132 | 407 | }, |
edc3be71 | 408 | |
ac6286bd RK |
409 | resizeAndDraw: function() { |
410 | var viewportWidth = Math.min(window.innerWidth, window.outerWidth); | |
411 | var viewportHeight = Math.min(window.innerHeight, window.outerHeight); | |
412 | if (gGLMapCanvas && gTrackCanvas) { | |
413 | gGLMapCanvas.width = viewportWidth; | |
414 | gGLMapCanvas.height = viewportHeight; | |
415 | gTrackCanvas.width = viewportWidth; | |
416 | gTrackCanvas.height = viewportHeight; | |
417 | if (gMap.gl) { | |
418 | // Size viewport to canvas size. | |
419 | gMap.gl.viewport(0, 0, gMap.gl.drawingBufferWidth, gMap.gl.drawingBufferHeight); | |
420 | // Clear the color. | |
421 | gMap.gl.clear(gMap.gl.COLOR_BUFFER_BIT); | |
422 | // Make sure the vertex shader get the right resolution. | |
423 | gMap.gl.uniform2f(gMap.glResolutionAttr, gGLMapCanvas.width, gGLMapCanvas.height); | |
424 | } | |
425 | gMap.draw(); | |
426 | showUI(); | |
427 | } | |
dda55132 RK |
428 | }, |
429 | ||
e8525b46 | 430 | drawTileGL: function(aLeft, aRight, aTextureIndex) { |
b9707ee0 RK |
431 | gMap.gl.activeTexture(gMap.gl.TEXTURE0); |
432 | gMap.gl.bindTexture(gMap.gl.TEXTURE_2D, gMap.glTextures["tx" + aTextureIndex]); | |
433 | // Set uImage to refer to TEXTURE0 | |
434 | gMap.gl.uniform1i(gMap.gl.getUniformLocation(gMap.glShaderProgram, "uImage"), 0); | |
dda55132 RK |
435 | var x_start = aLeft; |
436 | var i_width = gMap.tileSize; | |
437 | var y_start = aRight; | |
438 | var i_height = gMap.tileSize; | |
edc3be71 RK |
439 | var textureCoordinates = [ |
440 | x_start, y_start, | |
441 | x_start + i_width, y_start, | |
442 | x_start, y_start + i_height, | |
443 | x_start, y_start + i_height, | |
444 | x_start + i_width, y_start, | |
445 | x_start + i_width, y_start + i_height, | |
446 | ]; | |
447 | gMap.gl.bufferData(gMap.gl.ARRAY_BUFFER, new Float32Array(textureCoordinates), gMap.gl.STATIC_DRAW); | |
edc3be71 RK |
448 | |
449 | // There are 6 indices in textureCoordinates. | |
450 | gMap.gl.drawArrays(gMap.gl.TRIANGLES, 0, 6); | |
e8525b46 RK |
451 | }, |
452 | ||
453 | loadImageToTexture: function(aImage, aTextureIndex, aTileKey) { | |
b9707ee0 | 454 | // TODO: Get rid of old textures. |
e8525b46 RK |
455 | gMap.glTextureKeys[aTileKey] = aTextureIndex; |
456 | // Create and bind texture. | |
b9707ee0 RK |
457 | gMap.glTextures["tx" + aTextureIndex] = gMap.gl.createTexture(); |
458 | gMap.gl.bindTexture(gMap.gl.TEXTURE_2D, gMap.glTextures["tx" + aTextureIndex]); | |
e8525b46 RK |
459 | // Set params for how the texture minifies and magnifies (wrap params are not needed as we're power-of-two). |
460 | gMap.gl.texParameteri(gMap.gl.TEXTURE_2D, gMap.gl.TEXTURE_MIN_FILTER, gMap.gl.NEAREST); | |
461 | gMap.gl.texParameteri(gMap.gl.TEXTURE_2D, gMap.gl.TEXTURE_MAG_FILTER, gMap.gl.NEAREST); | |
462 | // Upload the image into the texture. | |
463 | gMap.gl.texImage2D(gMap.gl.TEXTURE_2D, 0, gMap.gl.RGBA, gMap.gl.RGBA, gMap.gl.UNSIGNED_BYTE, aImage); | |
464 | }, | |
ecde0af2 RK |
465 | } |
466 | ||
b5e49b95 RK |
467 | // Using scale(x, y) together with drawing old data on scaled canvas would be an improvement for zooming. |
468 | // See https://developer.mozilla.org/en-US/docs/Canvas_tutorial/Transformations#Scaling | |
469 | ||
23cd2dcc | 470 | function zoomIn() { |
dda55132 RK |
471 | if (gMap.pos.z < gMap.maxZoom) { |
472 | gMap.pos.z++; | |
ac6286bd | 473 | gMap.draw(); |
23cd2dcc RK |
474 | } |
475 | } | |
476 | ||
477 | function zoomOut() { | |
dda55132 RK |
478 | if (gMap.pos.z > 0) { |
479 | gMap.pos.z--; | |
ac6286bd | 480 | gMap.draw(); |
23cd2dcc RK |
481 | } |
482 | } | |
483 | ||
1222624d RK |
484 | function zoomTo(aTargetLevel) { |
485 | aTargetLevel = parseInt(aTargetLevel); | |
dda55132 RK |
486 | if (aTargetLevel >= 0 && aTargetLevel <= gMap.maxZoom) { |
487 | gMap.pos.z = aTargetLevel; | |
ac6286bd | 488 | gMap.draw(); |
1222624d RK |
489 | } |
490 | } | |
491 | ||
55c4a0b7 | 492 | function gps2xy(aLatitude, aLongitude) { |
dda55132 | 493 | var maxZoomFactor = Math.pow(2, gMap.maxZoom) * gMap.tileSize; |
55c4a0b7 RK |
494 | var convLat = aLatitude * Math.PI / 180; |
495 | var rawY = (1 - Math.log(Math.tan(convLat) + | |
496 | 1 / Math.cos(convLat)) / Math.PI) / 2 * maxZoomFactor; | |
497 | var rawX = (aLongitude + 180) / 360 * maxZoomFactor; | |
498 | return {x: Math.round(rawX), | |
499 | y: Math.round(rawY)}; | |
500 | } | |
501 | ||
502 | function xy2gps(aX, aY) { | |
dda55132 | 503 | var maxZoomFactor = Math.pow(2, gMap.maxZoom) * gMap.tileSize; |
55c4a0b7 RK |
504 | var n = Math.PI - 2 * Math.PI * aY / maxZoomFactor; |
505 | return {latitude: 180 / Math.PI * | |
506 | Math.atan(0.5 * (Math.exp(n) - Math.exp(-n))), | |
507 | longitude: aX / maxZoomFactor * 360 - 180}; | |
508 | } | |
509 | ||
b47b4a65 RK |
510 | function setMapStyle() { |
511 | var mapSel = document.getElementById("mapSelector"); | |
dda55132 RK |
512 | if (mapSel.selectedIndex >= 0 && gMap.activeMap != mapSel.value) { |
513 | gMap.activeMap = mapSel.value; | |
95f49ba7 | 514 | document.getElementById("copyright").innerHTML = |
dda55132 | 515 | gMapStyles[gMap.activeMap].copyright; |
b5c85133 | 516 | showUI(); |
ac6286bd | 517 | gMap.draw(); |
b47b4a65 RK |
518 | } |
519 | } | |
520 | ||
23cd2dcc RK |
521 | // A sane mod function that works for negative numbers. |
522 | // Returns a % b. | |
523 | function mod(a, b) { | |
524 | return ((a % b) + b) % b; | |
525 | } | |
526 | ||
a8634d37 RK |
527 | function normalizeCoords(aCoords) { |
528 | var zoomFactor = Math.pow(2, aCoords.z); | |
529 | return {x: mod(aCoords.x, zoomFactor), | |
530 | y: mod(aCoords.y, zoomFactor), | |
531 | z: aCoords.z}; | |
23cd2dcc RK |
532 | } |
533 | ||
b9707ee0 RK |
534 | function getTileKey(aStyle, aNormalizedCoords) { |
535 | return aStyle + "::" + | |
536 | aNormalizedCoords.x + "," + | |
537 | aNormalizedCoords.y + "," + | |
538 | aNormalizedCoords.z; | |
539 | } | |
540 | ||
23cd2dcc RK |
541 | // Returns true if the tile is outside the current view. |
542 | function isOutsideWindow(t) { | |
543 | var pos = decodeIndex(t); | |
23cd2dcc | 544 | |
dda55132 | 545 | var zoomFactor = Math.pow(2, gMap.maxZoom - pos.z); |
ac6286bd RK |
546 | var wid = gMap.width * zoomFactor; |
547 | var ht = gMap.height * zoomFactor; | |
23cd2dcc | 548 | |
4b1d0915 RK |
549 | pos.x *= zoomFactor; |
550 | pos.y *= zoomFactor; | |
23cd2dcc | 551 | |
dda55132 RK |
552 | var sz = gMap.tileSize * zoomFactor; |
553 | if (pos.x > gMap.pos.x + wid / 2 || pos.y > gMap.pos.y + ht / 2 || | |
554 | pos.x + sz < gMap.pos.x - wid / 2 || pos.y - sz < gMap.pos.y - ht / 2) | |
23cd2dcc RK |
555 | return true; |
556 | return false; | |
557 | } | |
558 | ||
559 | function encodeIndex(x, y, z) { | |
a8634d37 | 560 | var norm = normalizeCoords({x: x, y: y, z: z}); |
23cd2dcc RK |
561 | return norm.x + "," + norm.y + "," + norm.z; |
562 | } | |
563 | ||
564 | function decodeIndex(encodedIdx) { | |
4b1d0915 RK |
565 | var ind = encodedIdx.split(",", 3); |
566 | return {x: ind[0], y: ind[1], z: ind[2]}; | |
23cd2dcc RK |
567 | } |
568 | ||
6ddefbf9 | 569 | function drawTrack() { |
4b1d0915 RK |
570 | gLastDrawnPoint = null; |
571 | gCurPosMapCache = undefined; | |
572 | gTrackContext.clearRect(0, 0, gTrackCanvas.width, gTrackCanvas.height); | |
14e6d3ad | 573 | if (gTrack.length) { |
55c4a0b7 | 574 | for (var i = 0; i < gTrack.length; i++) { |
14e6d3ad RK |
575 | drawTrackPoint(gTrack[i].coords.latitude, gTrack[i].coords.longitude, |
576 | (i + 1 >= gTrack.length)); | |
55c4a0b7 | 577 | } |
14e6d3ad | 578 | } |
55c4a0b7 RK |
579 | } |
580 | ||
14e6d3ad | 581 | function drawTrackPoint(aLatitude, aLongitude, lastPoint) { |
55c4a0b7 | 582 | var trackpoint = gps2xy(aLatitude, aLongitude); |
14e6d3ad RK |
583 | // lastPoint is for optimizing (not actually executing the draw until the last) |
584 | trackpoint.optimized = (lastPoint === false); | |
ac6286bd RK |
585 | var mappos = {x: Math.round((trackpoint.x - gMap.pos.x) / gMap.zoomFactor + gMap.width / 2), |
586 | y: Math.round((trackpoint.y - gMap.pos.y) / gMap.zoomFactor + gMap.height / 2)}; | |
14e6d3ad RK |
587 | |
588 | if (!gLastDrawnPoint || !gLastDrawnPoint.optimized) { | |
4b1d0915 RK |
589 | gTrackContext.strokeStyle = gTrackColor; |
590 | gTrackContext.fillStyle = gTrackContext.strokeStyle; | |
591 | gTrackContext.lineWidth = gTrackWidth; | |
592 | gTrackContext.lineCap = "round"; | |
593 | gTrackContext.lineJoin = "round"; | |
14e6d3ad RK |
594 | } |
595 | if (!gLastDrawnPoint || gLastDrawnPoint == trackpoint) { | |
596 | // This breaks optimiziation, so make sure to close path and reset optimization. | |
597 | if (gLastDrawnPoint && gLastDrawnPoint.optimized) | |
4b1d0915 RK |
598 | gTrackContext.stroke(); |
599 | gTrackContext.beginPath(); | |
14e6d3ad | 600 | trackpoint.optimized = false; |
4b1d0915 RK |
601 | gTrackContext.arc(mappos.x, mappos.y, |
602 | gTrackContext.lineWidth, 0, Math.PI * 2, false); | |
603 | gTrackContext.fill(); | |
55c4a0b7 RK |
604 | } |
605 | else { | |
14e6d3ad | 606 | if (!gLastDrawnPoint || !gLastDrawnPoint.optimized) { |
4b1d0915 | 607 | gTrackContext.beginPath(); |
ac6286bd RK |
608 | gTrackContext.moveTo(Math.round((gLastDrawnPoint.x - gMap.pos.x) / gMap.zoomFactor + gMap.width / 2), |
609 | Math.round((gLastDrawnPoint.y - gMap.pos.y) / gMap.zoomFactor + gMap.height / 2)); | |
14e6d3ad | 610 | } |
4b1d0915 | 611 | gTrackContext.lineTo(mappos.x, mappos.y); |
14e6d3ad | 612 | if (!trackpoint.optimized) |
4b1d0915 | 613 | gTrackContext.stroke(); |
55c4a0b7 | 614 | } |
14e6d3ad | 615 | gLastDrawnPoint = trackpoint; |
23cd2dcc RK |
616 | } |
617 | ||
b054bd48 | 618 | function drawCurrentLocation(trackPoint) { |
4b1d0915 RK |
619 | var locpoint = gps2xy(trackPoint.coords.latitude, trackPoint.coords.longitude); |
620 | var circleRadius = Math.round(gCurLocSize / 2); | |
ac6286bd RK |
621 | var mappos = {x: Math.round((locpoint.x - gMap.pos.x) / gMap.zoomFactor + gMap.width / 2), |
622 | y: Math.round((locpoint.y - gMap.pos.y) / gMap.zoomFactor + gMap.height / 2)}; | |
4b1d0915 RK |
623 | |
624 | undrawCurrentLocation(); | |
b054bd48 RK |
625 | |
626 | // Cache overdrawn area. | |
4b1d0915 RK |
627 | gCurPosMapCache = |
628 | {point: locpoint, | |
629 | radius: circleRadius, | |
630 | data: gTrackContext.getImageData(mappos.x - circleRadius, | |
631 | mappos.y - circleRadius, | |
632 | circleRadius * 2, circleRadius * 2)}; | |
633 | ||
634 | gTrackContext.strokeStyle = gCurLocColor; | |
635 | gTrackContext.fillStyle = gTrackContext.strokeStyle; | |
636 | gTrackContext.beginPath(); | |
637 | gTrackContext.arc(mappos.x, mappos.y, | |
638 | circleRadius, 0, Math.PI * 2, false); | |
639 | gTrackContext.fill(); | |
640 | } | |
641 | ||
642 | function undrawCurrentLocation() { | |
643 | if (gCurPosMapCache) { | |
644 | var oldpoint = gCurPosMapCache.point; | |
ac6286bd RK |
645 | var oldmp = {x: Math.round((oldpoint.x - gMap.pos.x) / gMap.zoomFactor + gMap.width / 2), |
646 | y: Math.round((oldpoint.y - gMap.pos.y) / gMap.zoomFactor + gMap.height / 2)}; | |
4b1d0915 RK |
647 | gTrackContext.putImageData(gCurPosMapCache.data, |
648 | oldmp.x - gCurPosMapCache.radius, | |
649 | oldmp.y - gCurPosMapCache.radius); | |
650 | gCurPosMapCache = undefined; | |
651 | } | |
b054bd48 RK |
652 | } |
653 | ||
23cd2dcc RK |
654 | var mapEvHandler = { |
655 | handleEvent: function(aEvent) { | |
656 | var touchEvent = aEvent.type.indexOf('touch') != -1; | |
657 | ||
306ae634 RK |
658 | if (touchEvent) { |
659 | aEvent.stopPropagation(); | |
660 | } | |
661 | ||
8389557a RK |
662 | // Bail out if the event is happening on an input. |
663 | if (aEvent.target.tagName.toLowerCase() == "input") | |
664 | return; | |
665 | ||
1222624d RK |
666 | // Bail out on unwanted map moves, but not zoom or keyboard events. |
667 | if (aEvent.type.indexOf("mouse") === 0 || aEvent.type.indexOf("touch") === 0) { | |
23cd2dcc RK |
668 | // Bail out if this is neither a touch nor left-click. |
669 | if (!touchEvent && aEvent.button != 0) | |
670 | return; | |
671 | ||
672 | // Bail out if the started touch can't be found. | |
4b12da3a RK |
673 | if (touchEvent && gDragging && |
674 | !aEvent.changedTouches.identifiedTouch(gDragTouchID)) | |
23cd2dcc RK |
675 | return; |
676 | } | |
677 | ||
678 | var coordObj = touchEvent ? | |
4b12da3a | 679 | aEvent.changedTouches.identifiedTouch(gDragTouchID) : |
23cd2dcc RK |
680 | aEvent; |
681 | ||
682 | switch (aEvent.type) { | |
683 | case "mousedown": | |
684 | case "touchstart": | |
685 | if (touchEvent) { | |
517c0099 RK |
686 | if (aEvent.targetTouches.length == 2) { |
687 | gPinchStartWidth = Math.sqrt( | |
688 | Math.pow(aEvent.targetTouches.item(1).clientX - | |
689 | aEvent.targetTouches.item(0).clientX, 2) + | |
690 | Math.pow(aEvent.targetTouches.item(1).clientY - | |
691 | aEvent.targetTouches.item(0).clientY, 2) | |
692 | ); | |
693 | } | |
4b12da3a RK |
694 | gDragTouchID = aEvent.changedTouches.item(0).identifier; |
695 | coordObj = aEvent.changedTouches.identifiedTouch(gDragTouchID); | |
23cd2dcc | 696 | } |
ac6286bd RK |
697 | var x = coordObj.clientX - gGLMapCanvas.offsetLeft; |
698 | var y = coordObj.clientY - gGLMapCanvas.offsetTop; | |
b395419b | 699 | |
23cd2dcc RK |
700 | if (touchEvent || aEvent.button === 0) { |
701 | gDragging = true; | |
702 | } | |
703 | gLastMouseX = x; | |
704 | gLastMouseY = y; | |
7a549148 | 705 | showUI(); |
23cd2dcc RK |
706 | break; |
707 | case "mousemove": | |
708 | case "touchmove": | |
517c0099 RK |
709 | if (touchEvent && aEvent.targetTouches.length == 2) { |
710 | curPinchStartWidth = Math.sqrt( | |
711 | Math.pow(aEvent.targetTouches.item(1).clientX - | |
712 | aEvent.targetTouches.item(0).clientX, 2) + | |
713 | Math.pow(aEvent.targetTouches.item(1).clientY - | |
714 | aEvent.targetTouches.item(0).clientY, 2) | |
715 | ); | |
003d56f8 RK |
716 | if (!gPinchStartWidth) |
717 | gPinchStartWidth = curPinchStartWidth; | |
d07d7abc | 718 | |
517c0099 RK |
719 | if (gPinchStartWidth / curPinchStartWidth > 1.7 || |
720 | gPinchStartWidth / curPinchStartWidth < 0.6) { | |
dda55132 RK |
721 | var newZoomLevel = gMap.pos.z + (gPinchStartWidth < curPinchStartWidth ? 1 : -1); |
722 | if ((newZoomLevel >= 0) && (newZoomLevel <= gMap.maxZoom)) { | |
517c0099 RK |
723 | // Calculate new center of the map - preserve middle of pinch. |
724 | // This means that pixel distance between old center and middle | |
725 | // must equal pixel distance of new center and middle. | |
726 | var x = (aEvent.targetTouches.item(1).clientX + | |
727 | aEvent.targetTouches.item(0).clientX) / 2 - | |
ac6286bd | 728 | gGLMapCanvas.offsetLeft; |
517c0099 RK |
729 | var y = (aEvent.targetTouches.item(1).clientY + |
730 | aEvent.targetTouches.item(0).clientY) / 2 - | |
ac6286bd | 731 | gGLMapCanvas.offsetTop; |
517c0099 RK |
732 | |
733 | // Zoom factor after this action. | |
dda55132 | 734 | var newZoomFactor = Math.pow(2, gMap.maxZoom - newZoomLevel); |
ac6286bd RK |
735 | gMap.pos.x -= (x - gMap.width / 2) * (newZoomFactor - gMap.zoomFactor); |
736 | gMap.pos.y -= (y - gMap.height / 2) * (newZoomFactor - gMap.zoomFactor); | |
517c0099 RK |
737 | |
738 | if (gPinchStartWidth < curPinchStartWidth) | |
739 | zoomIn(); | |
740 | else | |
741 | zoomOut(); | |
003d56f8 RK |
742 | |
743 | // Reset pinch start width and start another pinch gesture. | |
744 | gPinchStartWidth = null; | |
517c0099 RK |
745 | } |
746 | } | |
d07d7abc | 747 | // If we are in a pinch, do not drag. |
517c0099 RK |
748 | break; |
749 | } | |
ac6286bd RK |
750 | var x = coordObj.clientX - gGLMapCanvas.offsetLeft; |
751 | var y = coordObj.clientY - gGLMapCanvas.offsetTop; | |
23cd2dcc RK |
752 | if (gDragging === true) { |
753 | var dX = x - gLastMouseX; | |
754 | var dY = y - gLastMouseY; | |
dda55132 RK |
755 | gMap.pos.x -= dX * gMap.zoomFactor; |
756 | gMap.pos.y -= dY * gMap.zoomFactor; | |
ac6286bd RK |
757 | if (false) { // use optimized path |
758 | /* TODO: investigate optimized path for GL - code below was 2D. | |
747bbd55 RK |
759 | var mapData = gMapContext.getImageData(0, 0, |
760 | gMapCanvas.width, | |
761 | gMapCanvas.height); | |
762 | gMapContext.clearRect(0, 0, gMapCanvas.width, gMapCanvas.height); | |
763 | gMapContext.putImageData(mapData, dX, dY); | |
ac6286bd | 764 | gMap.draw({left: (dX > 0) ? dX : 0, |
747bbd55 RK |
765 | right: (dX < 0) ? -dX : 0, |
766 | top: (dY > 0) ? dY : 0, | |
767 | bottom: (dY < 0) ? -dY : 0}); | |
ac6286bd | 768 | */ |
747bbd55 RK |
769 | } |
770 | else { | |
ac6286bd | 771 | gMap.draw(false, true); |
747bbd55 | 772 | } |
7a549148 | 773 | showUI(); |
23cd2dcc RK |
774 | } |
775 | gLastMouseX = x; | |
776 | gLastMouseY = y; | |
777 | break; | |
778 | case "mouseup": | |
779 | case "touchend": | |
d07d7abc | 780 | gPinchStartWidth = null; |
23cd2dcc | 781 | gDragging = false; |
7a549148 | 782 | showUI(); |
23cd2dcc RK |
783 | break; |
784 | case "mouseout": | |
785 | case "touchcancel": | |
786 | case "touchleave": | |
787 | //gDragging = false; | |
788 | break; | |
5fb31b29 RK |
789 | case "wheel": |
790 | // If we'd want pixels, we'd need to calc up using aEvent.deltaMode. | |
791 | // See https://developer.mozilla.org/en-US/docs/Mozilla_event_reference/wheel | |
792 | ||
793 | // Only accept (non-null) deltaY values | |
794 | if (!aEvent.deltaY) | |
795 | break; | |
23cd2dcc | 796 | |
55c4a0b7 RK |
797 | // Debug output: "coordinates" of the point the mouse was over. |
798 | /* | |
ac6286bd RK |
799 | var ptCoord = {x: gMap.pos.x + (x - gMap.width / 2) * gMap.zoomFactor, |
800 | y: gMap.pos.y + (x - gMap.height / 2) * gMap.zoomFactor}; | |
55c4a0b7 RK |
801 | var gpsCoord = xy2gps(ptCoord.x, ptCoord.y); |
802 | var pt2Coord = gps2xy(gpsCoord.latitude, gpsCoord.longitude); | |
915d4271 RK |
803 | console.log(ptCoord.x + "/" + ptCoord.y + " - " + |
804 | gpsCoord.latitude + "/" + gpsCoord.longitude + " - " + | |
805 | pt2Coord.x + "/" + pt2Coord.y); | |
55c4a0b7 | 806 | */ |
4b1d0915 | 807 | |
dda55132 RK |
808 | var newZoomLevel = gMap.pos.z + (aEvent.deltaY < 0 ? 1 : -1); |
809 | if ((newZoomLevel >= 0) && (newZoomLevel <= gMap.maxZoom)) { | |
4b1d0915 RK |
810 | // Calculate new center of the map - same point stays under the mouse. |
811 | // This means that the pixel distance between the old center and point | |
812 | // must equal the pixel distance of the new center and that point. | |
ac6286bd RK |
813 | var x = coordObj.clientX - gGLMapCanvas.offsetLeft; |
814 | var y = coordObj.clientY - gGLMapCanvas.offsetTop; | |
4b1d0915 RK |
815 | |
816 | // Zoom factor after this action. | |
dda55132 | 817 | var newZoomFactor = Math.pow(2, gMap.maxZoom - newZoomLevel); |
ac6286bd RK |
818 | gMap.pos.x -= (x - gMap.width / 2) * (newZoomFactor - gMap.zoomFactor); |
819 | gMap.pos.y -= (y - gMap.height / 2) * (newZoomFactor - gMap.zoomFactor); | |
4b1d0915 | 820 | |
5fb31b29 | 821 | if (aEvent.deltaY < 0) |
4b1d0915 | 822 | zoomIn(); |
5fb31b29 | 823 | else |
4b1d0915 RK |
824 | zoomOut(); |
825 | } | |
23cd2dcc | 826 | break; |
1222624d RK |
827 | case "keydown": |
828 | // Allow keyboard control to move and zoom the map. | |
829 | // Should use aEvent.key instead of aEvent.which but needs bug 680830. | |
830 | // See https://developer.mozilla.org/en-US/docs/DOM/Mozilla_event_reference/keydown | |
831 | var dX = 0; | |
832 | var dY = 0; | |
833 | switch (aEvent.which) { | |
834 | case 39: // right | |
dda55132 | 835 | dX = -gMap.tileSize / 2; |
1222624d RK |
836 | break; |
837 | case 37: // left | |
dda55132 | 838 | dX = gMap.tileSize / 2; |
1222624d RK |
839 | break; |
840 | case 38: // up | |
dda55132 | 841 | dY = gMap.tileSize / 2; |
1222624d RK |
842 | break; |
843 | case 40: // down | |
dda55132 | 844 | dY = -gMap.tileSize / 2; |
1222624d RK |
845 | break; |
846 | case 87: // w | |
847 | case 107: // + (numpad) | |
848 | case 171: // + (normal key) | |
849 | zoomIn(); | |
850 | break; | |
851 | case 83: // s | |
852 | case 109: // - (numpad) | |
853 | case 173: // - (normal key) | |
854 | zoomOut(); | |
855 | break; | |
856 | case 48: // 0 | |
857 | case 49: // 1 | |
858 | case 50: // 2 | |
859 | case 51: // 3 | |
860 | case 52: // 4 | |
861 | case 53: // 5 | |
862 | case 54: // 6 | |
863 | case 55: // 7 | |
864 | case 56: // 8 | |
865 | zoomTo(aEvent.which - 38); | |
866 | break; | |
867 | case 57: // 9 | |
868 | zoomTo(9); | |
869 | break; | |
870 | case 96: // 0 (numpad) | |
871 | case 97: // 1 (numpad) | |
872 | case 98: // 2 (numpad) | |
873 | case 99: // 3 (numpad) | |
874 | case 100: // 4 (numpad) | |
875 | case 101: // 5 (numpad) | |
876 | case 102: // 6 (numpad) | |
877 | case 103: // 7 (numpad) | |
878 | case 104: // 8 (numpad) | |
879 | zoomTo(aEvent.which - 86); | |
880 | break; | |
881 | case 105: // 9 (numpad) | |
882 | zoomTo(9); | |
883 | break; | |
884 | default: // not supported | |
885 | console.log("key not supported: " + aEvent.which); | |
886 | break; | |
887 | } | |
888 | ||
889 | // Move if needed. | |
890 | if (dX || dY) { | |
dda55132 RK |
891 | gMap.pos.x -= dX * gMap.zoomFactor; |
892 | gMap.pos.y -= dY * gMap.zoomFactor; | |
ac6286bd RK |
893 | if (false) { // use optimized path |
894 | /* TODO: investigate optimized path for GL - code below was 2D. | |
1222624d RK |
895 | var mapData = gMapContext.getImageData(0, 0, |
896 | gMapCanvas.width, | |
897 | gMapCanvas.height); | |
898 | gMapContext.clearRect(0, 0, gMapCanvas.width, gMapCanvas.height); | |
899 | gMapContext.putImageData(mapData, dX, dY); | |
ac6286bd | 900 | gMap.draw({left: (dX > 0) ? dX : 0, |
1222624d RK |
901 | right: (dX < 0) ? -dX : 0, |
902 | top: (dY > 0) ? dY : 0, | |
903 | bottom: (dY < 0) ? -dY : 0}); | |
ac6286bd | 904 | */ |
1222624d RK |
905 | } |
906 | else { | |
ac6286bd | 907 | gMap.draw(false, true); |
1222624d RK |
908 | } |
909 | } | |
910 | break; | |
23cd2dcc RK |
911 | } |
912 | } | |
913 | }; | |
55c4a0b7 | 914 | |
993fd081 | 915 | var geofake = { |
55c4a0b7 | 916 | tracking: false, |
4b12da3a | 917 | lastPos: {x: undefined, y: undefined}, |
55c4a0b7 RK |
918 | watchPosition: function(aSuccessCallback, aErrorCallback, aPrefObject) { |
919 | this.tracking = true; | |
920 | var watchCall = function() { | |
4b12da3a RK |
921 | // calc new position in lat/lon degrees |
922 | // 90° on Earth surface are ~10,000 km at the equator, | |
923 | // so try moving at most 10m at a time | |
924 | if (geofake.lastPos.x) | |
925 | geofake.lastPos.x += (Math.random() - .5) * 90 / 1000000 | |
926 | else | |
927 | geofake.lastPos.x = 48.208174 | |
928 | if (geofake.lastPos.y) | |
929 | geofake.lastPos.y += (Math.random() - .5) * 90 / 1000000 | |
930 | else | |
931 | geofake.lastPos.y = 16.373819 | |
55c4a0b7 | 932 | aSuccessCallback({timestamp: Date.now(), |
4b12da3a RK |
933 | coords: {latitude: geofake.lastPos.x, |
934 | longitude: geofake.lastPos.y, | |
55c4a0b7 RK |
935 | accuracy: 20}}); |
936 | if (geofake.tracking) | |
937 | setTimeout(watchCall, 1000); | |
938 | }; | |
939 | setTimeout(watchCall, 1000); | |
940 | return "foo"; | |
941 | }, | |
942 | clearWatch: function(aID) { | |
943 | this.tracking = false; | |
944 | } | |
945 | } | |
946 | ||
3610c22d RK |
947 | function setCentering(aCheckbox) { |
948 | if (gMapPrefsLoaded && mainDB) | |
949 | gPrefs.set("center_map", aCheckbox.checked); | |
950 | gCenterPosition = aCheckbox.checked; | |
951 | } | |
952 | ||
953 | function setTracking(aCheckbox) { | |
954 | if (gMapPrefsLoaded && mainDB) | |
955 | gPrefs.set("tracking_enabled", aCheckbox.checked); | |
956 | if (aCheckbox.checked) | |
957 | startTracking(); | |
958 | else | |
959 | endTracking(); | |
960 | } | |
961 | ||
55c4a0b7 | 962 | function startTracking() { |
31f0fe16 | 963 | if (gGeolocation) { |
68afcd96 RK |
964 | gActionLabel.textContent = "Establishing Position"; |
965 | gAction.style.display = "block"; | |
4b12da3a | 966 | gGeoWatchID = gGeolocation.watchPosition( |
55c4a0b7 | 967 | function(position) { |
68afcd96 RK |
968 | if (gActionLabel.textContent) { |
969 | gActionLabel.textContent = ""; | |
970 | gAction.style.display = "none"; | |
971 | } | |
55c4a0b7 | 972 | // Coords spec: https://developer.mozilla.org/en/XPCOM_Interface_Reference/NsIDOMGeoPositionCoords |
993fd081 | 973 | var tPoint = {time: position.timestamp, |
31f0fe16 RK |
974 | coords: {latitude: position.coords.latitude, |
975 | longitude: position.coords.longitude, | |
976 | altitude: position.coords.altitude, | |
977 | accuracy: position.coords.accuracy, | |
978 | altitudeAccuracy: position.coords.altitudeAccuracy, | |
979 | heading: position.coords.heading, | |
980 | speed: position.coords.speed}, | |
993fd081 | 981 | beginSegment: !gLastTrackPoint}; |
b054bd48 RK |
982 | // Only add point to track is accuracy is good enough. |
983 | if (tPoint.coords.accuracy < gMinTrackAccuracy) { | |
984 | gLastTrackPoint = tPoint; | |
985 | gTrack.push(tPoint); | |
986 | try { gTrackStore.push(tPoint); } catch(e) {} | |
987 | var redrawn = false; | |
988 | if (gCenterPosition) { | |
989 | var posCoord = gps2xy(position.coords.latitude, | |
990 | position.coords.longitude); | |
ac6286bd RK |
991 | if (Math.abs(gMap.pos.x - posCoord.x) > gMap.width * gMap.zoomFactor / 4 || |
992 | Math.abs(gMap.pos.y - posCoord.y) > gMap.height * gMap.zoomFactor / 4) { | |
dda55132 RK |
993 | gMap.pos.x = posCoord.x; |
994 | gMap.pos.y = posCoord.y; | |
ac6286bd | 995 | gMap.draw(); // This draws the current point as well. |
b054bd48 RK |
996 | redrawn = true; |
997 | } | |
99631a75 | 998 | } |
b054bd48 | 999 | if (!redrawn) |
4b1d0915 | 1000 | undrawCurrentLocation(); |
b054bd48 | 1001 | drawTrackPoint(position.coords.latitude, position.coords.longitude, true); |
05c21757 | 1002 | } |
b054bd48 | 1003 | drawCurrentLocation(tPoint); |
55c4a0b7 RK |
1004 | }, |
1005 | function(error) { | |
1006 | // Ignore erros for the moment, but this is good for debugging. | |
1007 | // See https://developer.mozilla.org/en/Using_geolocation#Handling_errors | |
915d4271 RK |
1008 | if (gDebug) |
1009 | console.log(error.message); | |
55c4a0b7 RK |
1010 | }, |
1011 | {enableHighAccuracy: true} | |
1012 | ); | |
1013 | } | |
1014 | } | |
1015 | ||
1016 | function endTracking() { | |
68afcd96 RK |
1017 | if (gActionLabel.textContent) { |
1018 | gActionLabel.textContent = ""; | |
1019 | gAction.style.display = "none"; | |
1020 | } | |
55c4a0b7 | 1021 | if (gGeoWatchID) { |
4b12da3a | 1022 | gGeolocation.clearWatch(gGeoWatchID); |
55c4a0b7 RK |
1023 | } |
1024 | } | |
993fd081 RK |
1025 | |
1026 | function clearTrack() { | |
1027 | gTrack = []; | |
1028 | gTrackStore.clear(); | |
6ddefbf9 | 1029 | drawTrack(); |
993fd081 | 1030 | } |
a8634d37 RK |
1031 | |
1032 | var gTileService = { | |
1033 | objStore: "tilecache", | |
1034 | ||
5d67397a | 1035 | ageLimit: 14 * 86400 * 1000, // 2 weeks (in ms) |
3431f496 | 1036 | |
a8634d37 RK |
1037 | get: function(aStyle, aCoords, aCallback) { |
1038 | var norm = normalizeCoords(aCoords); | |
b9707ee0 | 1039 | var dbkey = getTileKey(aStyle, norm); |
a8634d37 RK |
1040 | this.getDBCache(dbkey, function(aResult, aEvent) { |
1041 | if (aResult) { | |
1042 | // We did get a cached object. | |
e8525b46 | 1043 | aCallback(aResult.image, aStyle, aCoords, dbkey); |
3431f496 | 1044 | // Look at the timestamp and return if it's not too old. |
5d67397a | 1045 | if (aResult.timestamp + gTileService.ageLimit > Date.now()) |
3431f496 RK |
1046 | return; |
1047 | // Reload cached tile otherwise. | |
5d67397a RK |
1048 | var oldDate = new Date(aResult.timestamp); |
1049 | console.log("reload cached tile: " + dbkey + " - " + oldDate.toUTCString()); | |
a8634d37 | 1050 | } |
3431f496 RK |
1051 | // Retrieve image from the web and store it in the cache. |
1052 | var XHR = new XMLHttpRequest(); | |
1053 | XHR.open("GET", | |
1054 | gMapStyles[aStyle].url | |
1055 | .replace("{x}", norm.x) | |
1056 | .replace("{y}", norm.y) | |
1057 | .replace("{z}", norm.z) | |
1058 | .replace("[a-c]", String.fromCharCode(97 + Math.floor(Math.random() * 2))) | |
1059 | .replace("[1-4]", 1 + Math.floor(Math.random() * 3)), | |
1060 | true); | |
1061 | XHR.responseType = "blob"; | |
1062 | XHR.addEventListener("load", function () { | |
1063 | if (XHR.status === 200) { | |
1064 | var blob = XHR.response; | |
e8525b46 | 1065 | aCallback(blob, aStyle, aCoords, dbkey); |
6d7cdcf6 | 1066 | gTileService.setDBCache(dbkey, {image: blob, timestamp: Date.now()}); |
3431f496 RK |
1067 | } |
1068 | }, false); | |
1069 | XHR.send(); | |
a8634d37 RK |
1070 | }); |
1071 | }, | |
1072 | ||
1073 | getDBCache: function(aKey, aCallback) { | |
1074 | if (!mainDB) | |
1075 | return; | |
1076 | var transaction = mainDB.transaction([this.objStore]); | |
1077 | var request = transaction.objectStore(this.objStore).get(aKey); | |
1078 | request.onsuccess = function(event) { | |
1079 | aCallback(request.result, event); | |
1080 | }; | |
1081 | request.onerror = function(event) { | |
1082 | // Errors can be handled here. | |
1083 | aCallback(undefined, event); | |
1084 | }; | |
1085 | }, | |
1086 | ||
1087 | setDBCache: function(aKey, aValue, aCallback) { | |
1088 | if (!mainDB) | |
1089 | return; | |
1090 | var success = false; | |
1091 | var transaction = mainDB.transaction([this.objStore], "readwrite"); | |
1092 | var objStore = transaction.objectStore(this.objStore); | |
1093 | var request = objStore.put(aValue, aKey); | |
1094 | request.onsuccess = function(event) { | |
1095 | success = true; | |
1096 | if (aCallback) | |
1097 | aCallback(success, event); | |
1098 | }; | |
1099 | request.onerror = function(event) { | |
1100 | // Errors can be handled here. | |
1101 | if (aCallback) | |
1102 | aCallback(success, event); | |
1103 | }; | |
1104 | }, | |
1105 | ||
1106 | unsetDBCache: function(aKey, aCallback) { | |
1107 | if (!mainDB) | |
1108 | return; | |
1109 | var success = false; | |
1110 | var transaction = mainDB.transaction([this.objStore], "readwrite"); | |
1111 | var request = transaction.objectStore(this.objStore).delete(aKey); | |
1112 | request.onsuccess = function(event) { | |
1113 | success = true; | |
1114 | if (aCallback) | |
1115 | aCallback(success, event); | |
1116 | }; | |
1117 | request.onerror = function(event) { | |
1118 | // Errors can be handled here. | |
1119 | if (aCallback) | |
1120 | aCallback(success, event); | |
1121 | } | |
3431f496 RK |
1122 | }, |
1123 | ||
1124 | clearDB: function(aCallback) { | |
1125 | if (!mainDB) | |
1126 | return; | |
1127 | var success = false; | |
1128 | var transaction = mainDB.transaction([this.objStore], "readwrite"); | |
1129 | var request = transaction.objectStore(this.objStore).clear(); | |
1130 | request.onsuccess = function(event) { | |
1131 | success = true; | |
1132 | if (aCallback) | |
1133 | aCallback(success, event); | |
1134 | }; | |
1135 | request.onerror = function(event) { | |
1136 | // Errors can be handled here. | |
1137 | if (aCallback) | |
1138 | aCallback(success, event); | |
1139 | } | |
a8634d37 RK |
1140 | } |
1141 | }; |