Commit | Line | Data |
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a7393a71 RK |
1 | /* This Source Code Form is subject to the terms of the Mozilla Public |
2 | * License, v. 2.0. If a copy of the MPL was not distributed with this file, | |
3 | * You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
23cd2dcc | 4 | |
edc3be71 | 5 | var gMapCanvas, gMapContext, 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; |
ecde0af2 | 66 | // Set up canvas contexts. TODO: Remove 2D map once GL support works. |
4b1d0915 RK |
67 | gMapCanvas = document.getElementById("map"); |
68 | gMapContext = gMapCanvas.getContext("2d"); | |
ecde0af2 RK |
69 | gGLMapCanvas = document.getElementById("glmap"); |
70 | try { | |
71 | // Try to grab the standard context. If it fails, fallback to experimental. | |
72 | // We also try to tell it we do not need a depth buffer. | |
edc3be71 RK |
73 | gMap.gl = gGLMapCanvas.getContext("webgl", {depth: false}) || |
74 | gGLMapCanvas.getContext("experimental-webgl", {depth: false}); | |
ecde0af2 RK |
75 | } |
76 | catch(e) {} | |
77 | // If we don't have a GL context, give up now | |
edc3be71 | 78 | if (!gMap.gl) { |
ecde0af2 | 79 | showGLWarningDialog(); |
edc3be71 | 80 | gMap.gl = null; |
ecde0af2 | 81 | } |
4b1d0915 RK |
82 | gTrackCanvas = document.getElementById("track"); |
83 | gTrackContext = gTrackCanvas.getContext("2d"); | |
dda55132 RK |
84 | if (!gMap.activeMap) |
85 | gMap.activeMap = "osm_mapnik"; | |
23cd2dcc | 86 | |
4b12da3a RK |
87 | //gDebug = true; |
88 | if (gDebug) { | |
89 | gGeolocation = geofake; | |
90 | var hiddenList = document.getElementsByClassName("debugHide"); | |
91 | // last to first - list of elements with that class is changing! | |
92 | for (var i = hiddenList.length - 1; i >= 0; i--) { | |
93 | hiddenList[i].classList.remove("debugHide"); | |
94 | } | |
95 | } | |
96 | ||
edc3be71 | 97 | gAction.addEventListener("prefload-done", gMap.initGL, false); |
ecde0af2 | 98 | |
582d50fc RK |
99 | console.log("map vars set, loading prefs..."); |
100 | loadPrefs(); | |
101 | } | |
b395419b | 102 | |
582d50fc RK |
103 | function loadPrefs(aEvent) { |
104 | if (aEvent && aEvent.type == "prefs-step") { | |
105 | console.log("wait: " + gWaitCounter); | |
106 | if (gWaitCounter == 0) { | |
107 | gAction.removeEventListener(aEvent.type, loadPrefs, false); | |
108 | gMapPrefsLoaded = true; | |
109 | console.log("prefs loaded."); | |
110 | ||
111 | gTrackCanvas.addEventListener("mouseup", mapEvHandler, false); | |
112 | gTrackCanvas.addEventListener("mousemove", mapEvHandler, false); | |
113 | gTrackCanvas.addEventListener("mousedown", mapEvHandler, false); | |
114 | gTrackCanvas.addEventListener("mouseout", mapEvHandler, false); | |
115 | ||
116 | gTrackCanvas.addEventListener("touchstart", mapEvHandler, false); | |
117 | gTrackCanvas.addEventListener("touchmove", mapEvHandler, false); | |
118 | gTrackCanvas.addEventListener("touchend", mapEvHandler, false); | |
119 | gTrackCanvas.addEventListener("touchcancel", mapEvHandler, false); | |
120 | gTrackCanvas.addEventListener("touchleave", mapEvHandler, false); | |
121 | ||
122 | gTrackCanvas.addEventListener("wheel", mapEvHandler, false); | |
123 | ||
124 | document.getElementById("body").addEventListener("keydown", mapEvHandler, false); | |
125 | ||
126 | document.getElementById("copyright").innerHTML = | |
dda55132 | 127 | gMapStyles[gMap.activeMap].copyright; |
582d50fc RK |
128 | |
129 | gLoadingTile = new Image(); | |
130 | gLoadingTile.src = "style/loading.png"; | |
131 | gLoadingTile.onload = function() { | |
ecde0af2 | 132 | var throwEv = new CustomEvent("prefload-done"); |
582d50fc RK |
133 | gAction.dispatchEvent(throwEv); |
134 | }; | |
135 | } | |
136 | } | |
137 | else { | |
138 | if (aEvent) | |
139 | gAction.removeEventListener(aEvent.type, loadPrefs, false); | |
140 | gAction.addEventListener("prefs-step", loadPrefs, false); | |
141 | gWaitCounter++; | |
142 | gPrefs.get("position", function(aValue) { | |
143 | if (aValue) { | |
dda55132 | 144 | gMap.pos = aValue; |
582d50fc | 145 | } |
df81068a RK |
146 | gWaitCounter--; |
147 | var throwEv = new CustomEvent("prefs-step"); | |
148 | gAction.dispatchEvent(throwEv); | |
582d50fc RK |
149 | }); |
150 | gWaitCounter++; | |
151 | gPrefs.get("center_map", function(aValue) { | |
152 | if (aValue === undefined) | |
153 | document.getElementById("centerCheckbox").checked = true; | |
154 | else | |
155 | document.getElementById("centerCheckbox").checked = aValue; | |
156 | setCentering(document.getElementById("centerCheckbox")); | |
157 | gWaitCounter--; | |
158 | var throwEv = new CustomEvent("prefs-step"); | |
159 | gAction.dispatchEvent(throwEv); | |
160 | }); | |
161 | gWaitCounter++; | |
162 | gPrefs.get("tracking_enabled", function(aValue) { | |
163 | if (aValue === undefined) | |
164 | document.getElementById("trackCheckbox").checked = true; | |
165 | else | |
166 | document.getElementById("trackCheckbox").checked = aValue; | |
167 | gWaitCounter--; | |
168 | var throwEv = new CustomEvent("prefs-step"); | |
169 | gAction.dispatchEvent(throwEv); | |
170 | }); | |
171 | gWaitCounter++; | |
cef88e12 RK |
172 | var trackLoadStarted = false; |
173 | var redrawBase = 100; | |
6ddefbf9 RK |
174 | gTrackStore.getListStepped(function(aTPoint) { |
175 | if (aTPoint) { | |
176 | // Add in front and return new length. | |
177 | var tracklen = gTrack.unshift(aTPoint); | |
fdaf08db RK |
178 | // Redraw track periodically, larger distance the longer it gets. |
179 | // Initial paint will do initial track drawing. | |
180 | if (tracklen % redrawBase == 0) { | |
6ddefbf9 | 181 | drawTrack(); |
fdaf08db RK |
182 | redrawBase = tracklen; |
183 | } | |
6ddefbf9 RK |
184 | } |
185 | else { | |
186 | // Last point received. | |
187 | drawTrack(); | |
188 | } | |
189 | if (!trackLoadStarted) { | |
190 | // We have the most recent point, if present, rest will load async. | |
191 | trackLoadStarted = true; | |
192 | gWaitCounter--; | |
193 | var throwEv = new CustomEvent("prefs-step"); | |
194 | gAction.dispatchEvent(throwEv); | |
582d50fc | 195 | } |
582d50fc RK |
196 | }); |
197 | } | |
23cd2dcc RK |
198 | } |
199 | ||
edc3be71 RK |
200 | var gMap = { |
201 | gl: null, | |
202 | glShaderProgram: null, | |
203 | glVertexPositionAttr: null, | |
204 | glTextureCoordAttr: null, | |
205 | glResolutionAttr: null, | |
206 | glMapTexture: null, | |
e8525b46 RK |
207 | glTextures: {}, |
208 | glTextureKeys: {}, | |
edc3be71 | 209 | |
dda55132 RK |
210 | activeMap: "osm_mapnik", |
211 | tileSize: 256, | |
212 | maxZoom: 18, // The minimum is 0. | |
213 | zoomFactor: null, | |
214 | pos: { | |
215 | x: 35630000.0, // Current position in the map in pixels at the maximum zoom level (18) | |
216 | y: 23670000.0, // The range is 0-67108864 (2^gMap.maxZoom * gMap.tileSize) | |
217 | z: 5 // This could be fractional if supported being between zoom levels. | |
218 | }, | |
219 | ||
edc3be71 RK |
220 | getVertShaderSource: function() { |
221 | return 'attribute vec2 aVertexPosition;\n' + | |
222 | 'attribute vec2 aTextureCoord;\n\n' + | |
223 | 'uniform vec2 uResolution;\n\n' + | |
224 | 'varying highp vec2 vTextureCoord;\n\n' + | |
225 | 'void main(void) {\n' + | |
226 | // convert the rectangle from pixels to -1.0 to +1.0 (clipspace) 0.0 to 1.0 | |
227 | ' vec2 clipSpace = aVertexPosition * 2.0 / uResolution - 1.0;\n' + | |
228 | ' gl_Position = vec4(clipSpace * vec2(1, -1), 0, 1);\n' + | |
229 | ' vTextureCoord = aTextureCoord;\n' + | |
230 | '}'; }, | |
231 | getFragShaderSource:function() { | |
232 | return 'varying highp vec2 vTextureCoord;\n\n' + | |
233 | 'uniform sampler2D uImage;\n\n' + | |
234 | 'void main(void) {\n' + | |
235 | ' gl_FragColor = texture2D(uImage, vTextureCoord);\n' + | |
236 | '}'; }, | |
237 | ||
238 | initGL: function() { | |
239 | // When called from the event listener, the "this" reference doesn't work, so use the object name. | |
240 | if (gMap.gl) { | |
241 | gMap.gl.viewport(0, 0, gMap.gl.drawingBufferWidth, gMap.gl.drawingBufferHeight); | |
242 | gMap.gl.clearColor(0.0, 0.0, 0.0, 0.5); // Set clear color to black, fully opaque. | |
243 | gMap.gl.clear(gMap.gl.COLOR_BUFFER_BIT|gMap.gl.DEPTH_BUFFER_BIT); // Clear the color. | |
244 | ||
245 | // Create and initialize the shaders. | |
246 | var vertShader = gMap.gl.createShader(gMap.gl.VERTEX_SHADER); | |
247 | var fragShader = gMap.gl.createShader(gMap.gl.FRAGMENT_SHADER); | |
248 | gMap.gl.shaderSource(vertShader, gMap.getVertShaderSource()); | |
249 | // Compile the shader program. | |
250 | gMap.gl.compileShader(vertShader); | |
251 | // See if it compiled successfully. | |
252 | if (!gMap.gl.getShaderParameter(vertShader, gMap.gl.COMPILE_STATUS)) { | |
253 | console.log("An error occurred compiling the vertex shader: " + gMap.gl.getShaderInfoLog(vertShader)); | |
254 | return null; | |
255 | } | |
256 | gMap.gl.shaderSource(fragShader, gMap.getFragShaderSource()); | |
257 | // Compile the shader program. | |
258 | gMap.gl.compileShader(fragShader); | |
259 | // See if it compiled successfully. | |
260 | if (!gMap.gl.getShaderParameter(fragShader, gMap.gl.COMPILE_STATUS)) { | |
261 | console.log("An error occurred compiling the fragment shader: " + gMap.gl.getShaderInfoLog(fragShader)); | |
262 | return null; | |
263 | } | |
ecde0af2 | 264 | |
edc3be71 RK |
265 | gMap.glShaderProgram = gMap.gl.createProgram(); |
266 | gMap.gl.attachShader(gMap.glShaderProgram, vertShader); | |
267 | gMap.gl.attachShader(gMap.glShaderProgram, fragShader); | |
268 | gMap.gl.linkProgram(gMap.glShaderProgram); | |
269 | // If creating the shader program failed, alert | |
270 | if (!gMap.gl.getProgramParameter(gMap.glShaderProgram, gMap.gl.LINK_STATUS)) { | |
271 | alert("Unable to initialize the shader program."); | |
272 | } | |
273 | gMap.gl.useProgram(gMap.glShaderProgram); | |
274 | // Get locations of the attributes. | |
275 | gMap.glVertexPositionAttr = gMap.gl.getAttribLocation(gMap.glShaderProgram, "aVertexPosition"); | |
276 | gMap.glTextureCoordAttr = gMap.gl.getAttribLocation(gMap.glShaderProgram, "aTextureCoord"); | |
277 | gMap.glResolutionAttr = gMap.gl.getUniformLocation(gMap.glShaderProgram, "uResolution"); | |
278 | ||
279 | var tileVerticesBuffer = gMap.gl.createBuffer(); | |
280 | gMap.gl.bindBuffer(gMap.gl.ARRAY_BUFFER, tileVerticesBuffer); | |
281 | // The vertices are the coordinates of the corner points of the square. | |
282 | var vertices = [ | |
283 | 0.0, 0.0, | |
284 | 1.0, 0.0, | |
285 | 0.0, 1.0, | |
286 | 0.0, 1.0, | |
287 | 1.0, 0.0, | |
288 | 1.0, 1.0, | |
289 | ]; | |
290 | gMap.gl.bufferData(gMap.gl.ARRAY_BUFFER, new Float32Array(vertices), gMap.gl.STATIC_DRAW); | |
291 | gMap.gl.enableVertexAttribArray(gMap.glTextureCoordAttr); | |
292 | gMap.gl.vertexAttribPointer(gMap.glTextureCoordAttr, 2, gMap.gl.FLOAT, false, 0, 0); | |
293 | ||
e8525b46 | 294 | gMap.loadImageToTexture(gLoadingTile, 0, "loading::0,0,0"); |
edc3be71 RK |
295 | |
296 | gMap.gl.uniform2f(gMap.glResolutionAttr, gGLMapCanvas.width, gGLMapCanvas.height); | |
297 | ||
298 | // Create a buffer for the position of the rectangle corners. | |
299 | var mapVerticesTextureCoordBuffer = gMap.gl.createBuffer(); | |
300 | gMap.gl.bindBuffer(gMap.gl.ARRAY_BUFFER, mapVerticesTextureCoordBuffer); | |
301 | gMap.gl.enableVertexAttribArray(gMap.glVertexPositionAttr); | |
302 | gMap.gl.vertexAttribPointer(gMap.glVertexPositionAttr, 2, gMap.gl.FLOAT, false, 0, 0); | |
ecde0af2 | 303 | } |
edc3be71 RK |
304 | |
305 | var throwEv = new CustomEvent("mapinit-done"); | |
306 | gAction.dispatchEvent(throwEv); | |
307 | }, | |
308 | ||
dda55132 | 309 | drawGLTest: function() { |
edc3be71 RK |
310 | if (!gMap.gl) { return; } |
311 | ||
e8525b46 RK |
312 | this.drawTileGL(5, 10, 0); |
313 | this.drawTileGL(300, 20, 0); | |
dda55132 | 314 | }, |
ecde0af2 | 315 | |
dda55132 RK |
316 | drawGL: function(aPixels, aOverdraw) { |
317 | if (!gMap.gl) { return; } | |
318 | // aPixels is an object with left/right/top/bottom members telling how many | |
319 | // pixels on the borders should actually be drawn. | |
320 | // aOverdraw is a bool that tells if we should draw placeholders or draw | |
321 | // straight over the existing content. | |
322 | // XXX: Both those optimizations are OFF for GL right now! | |
323 | //if (!aPixels) | |
324 | aPixels = {left: gMap.gl.drawingBufferWidth, right: gMap.gl.drawingBufferWidth, | |
325 | top: gMap.gl.drawingBufferHeight, bottom: gMap.gl.drawingBufferHeight}; | |
e8525b46 | 326 | if (!aOverdraw) |
dda55132 RK |
327 | aOverdraw = false; |
328 | ||
329 | document.getElementById("zoomLevel").textContent = gMap.pos.z; | |
330 | gMap.zoomFactor = Math.pow(2, gMap.maxZoom - gMap.pos.z); | |
331 | var wid = gMap.gl.drawingBufferWidth * gMap.zoomFactor; // Width in level 18 pixels. | |
332 | var ht = gMap.gl.drawingBufferHeight * gMap.zoomFactor; // Height in level 18 pixels. | |
333 | var size = gMap.tileSize * gMap.zoomFactor; // Tile size in level 18 pixels. | |
334 | ||
335 | var xMin = gMap.pos.x - wid / 2; // Corners of the window in level 18 pixels. | |
336 | var yMin = gMap.pos.y - ht / 2; | |
337 | var xMax = gMap.pos.x + wid / 2; | |
338 | var yMax = gMap.pos.y + ht / 2; | |
339 | ||
340 | if (gMapPrefsLoaded && mainDB) | |
341 | gPrefs.set("position", gMap.pos); | |
342 | ||
343 | var tiles = {left: Math.ceil((xMin + aPixels.left * gMap.zoomFactor) / size) - | |
344 | (aPixels.left ? 0 : 1), | |
345 | right: Math.floor((xMax - aPixels.right * gMap.zoomFactor) / size) - | |
346 | (aPixels.right ? 1 : 0), | |
347 | top: Math.ceil((yMin + aPixels.top * gMap.zoomFactor) / size) - | |
348 | (aPixels.top ? 0 : 1), | |
349 | bottom: Math.floor((yMax - aPixels.bottom * gMap.zoomFactor) / size) - | |
350 | (aPixels.bottom ? 1 : 0)}; | |
351 | ||
352 | // Go through all the tiles in the map, find out if to draw them and do so. | |
353 | for (var x = Math.floor(xMin / size); x < Math.ceil(xMax / size); x++) { | |
354 | for (var y = Math.floor(yMin / size); y < Math.ceil(yMax / size); y++) { // slow script warnings on the tablet appear here! | |
355 | // Only go to the drawing step if we need to draw this tile. | |
356 | if (x < tiles.left || x > tiles.right || | |
357 | y < tiles.top || y > tiles.bottom) { | |
358 | // Round here is **CRUCIAL** otherwise the images are filtered | |
359 | // and the performance sucks (more than expected). | |
360 | var xoff = Math.round((x * size - xMin) / gMap.zoomFactor); | |
361 | var yoff = Math.round((y * size - yMin) / gMap.zoomFactor); | |
362 | // Draw placeholder tile unless we overdraw. | |
363 | if (!aOverdraw && | |
364 | (x < tiles.left -1 || x > tiles.right + 1 || | |
e8525b46 RK |
365 | y < tiles.top -1 || y > tiles.bottom + 1)) { |
366 | gMap.drawTileGL(xoff, yoff, 0); | |
367 | } | |
dda55132 RK |
368 | // Initiate loading/drawing of the actual tile. |
369 | gTileService.get(gMap.activeMap, {x: x, y: y, z: gMap.pos.z}, | |
e8525b46 | 370 | function(aImage, aStyle, aCoords, aTileKey) { |
dda55132 RK |
371 | // Only draw if this applies for the current view. |
372 | if ((aStyle == gMap.activeMap) && (aCoords.z == gMap.pos.z)) { | |
373 | var ixMin = gMap.pos.x - wid / 2; | |
374 | var iyMin = gMap.pos.y - ht / 2; | |
375 | var ixoff = Math.round((aCoords.x * size - ixMin) / gMap.zoomFactor); | |
376 | var iyoff = Math.round((aCoords.y * size - iyMin) / gMap.zoomFactor); | |
377 | var URL = window.URL; | |
378 | var imgURL = URL.createObjectURL(aImage); | |
379 | var imgObj = new Image(); | |
380 | imgObj.src = imgURL; | |
381 | imgObj.onload = function() { | |
e8525b46 RK |
382 | var txIndex = gMap.glTextureKeys[aTileKey]; |
383 | if (!txIndex) { | |
384 | txIndex = Object.keys(gMap.glTextureKeys).length; | |
385 | gMap.loadImageToTexture(imgObj, txIndex, aTileKey); | |
386 | } | |
387 | gMap.drawTileGL(ixoff, iyoff, txIndex); | |
dda55132 RK |
388 | URL.revokeObjectURL(imgURL); |
389 | } | |
390 | } | |
391 | }); | |
dda55132 RK |
392 | } |
393 | } | |
394 | } | |
395 | //drawTrack(); | |
396 | }, | |
edc3be71 | 397 | |
dda55132 RK |
398 | resizeAndDrawGL: function() { |
399 | if (!gMap.gl) { return; } | |
400 | ||
401 | gMap.gl.viewport(0, 0, gMap.gl.drawingBufferWidth, gMap.gl.drawingBufferHeight); | |
402 | gMap.gl.clear(gMap.gl.COLOR_BUFFER_BIT); // Clear the color. | |
403 | gMap.gl.uniform2f(gMap.glResolutionAttr, gGLMapCanvas.width, gGLMapCanvas.height); | |
404 | //gMap.drawGLTest(); | |
405 | gMap.drawGL(); | |
406 | }, | |
407 | ||
e8525b46 RK |
408 | drawTileGL: function(aLeft, aRight, aTextureIndex) { |
409 | gMap.gl.activeTexture(gMap.gl.TEXTURE0 + aTextureIndex); | |
410 | gMap.gl.bindTexture(gMap.gl.TEXTURE_2D, gMap.glTextures[aTextureIndex]); | |
dda55132 RK |
411 | var x_start = aLeft; |
412 | var i_width = gMap.tileSize; | |
413 | var y_start = aRight; | |
414 | var i_height = gMap.tileSize; | |
edc3be71 RK |
415 | var textureCoordinates = [ |
416 | x_start, y_start, | |
417 | x_start + i_width, y_start, | |
418 | x_start, y_start + i_height, | |
419 | x_start, y_start + i_height, | |
420 | x_start + i_width, y_start, | |
421 | x_start + i_width, y_start + i_height, | |
422 | ]; | |
423 | gMap.gl.bufferData(gMap.gl.ARRAY_BUFFER, new Float32Array(textureCoordinates), gMap.gl.STATIC_DRAW); | |
edc3be71 RK |
424 | |
425 | // There are 6 indices in textureCoordinates. | |
426 | gMap.gl.drawArrays(gMap.gl.TRIANGLES, 0, 6); | |
e8525b46 RK |
427 | }, |
428 | ||
429 | loadImageToTexture: function(aImage, aTextureIndex, aTileKey) { | |
430 | gMap.glTextureKeys[aTileKey] = aTextureIndex; | |
431 | // Create and bind texture. | |
432 | gMap.glTextures[aTextureIndex] = gMap.gl.createTexture(); | |
433 | gMap.gl.activeTexture(gMap.gl.TEXTURE0 + aTextureIndex); | |
434 | gMap.gl.bindTexture(gMap.gl.TEXTURE_2D, gMap.glTextures[aTextureIndex]); | |
435 | gMap.gl.uniform1i(gMap.gl.getUniformLocation(gMap.glShaderProgram, "uImage"), 0); | |
436 | // Set params for how the texture minifies and magnifies (wrap params are not needed as we're power-of-two). | |
437 | gMap.gl.texParameteri(gMap.gl.TEXTURE_2D, gMap.gl.TEXTURE_MIN_FILTER, gMap.gl.NEAREST); | |
438 | gMap.gl.texParameteri(gMap.gl.TEXTURE_2D, gMap.gl.TEXTURE_MAG_FILTER, gMap.gl.NEAREST); | |
439 | // Upload the image into the texture. | |
440 | gMap.gl.texImage2D(gMap.gl.TEXTURE_2D, 0, gMap.gl.RGBA, gMap.gl.RGBA, gMap.gl.UNSIGNED_BYTE, aImage); | |
441 | }, | |
ecde0af2 RK |
442 | } |
443 | ||
23cd2dcc | 444 | function resizeAndDraw() { |
321359cd RK |
445 | var viewportWidth = Math.min(window.innerWidth, window.outerWidth); |
446 | var viewportHeight = Math.min(window.innerHeight, window.outerHeight); | |
ecde0af2 | 447 | if (gMapCanvas && gGLMapCanvas && gTrackCanvas) { |
915d4271 RK |
448 | gMapCanvas.width = viewportWidth; |
449 | gMapCanvas.height = viewportHeight; | |
ecde0af2 RK |
450 | gGLMapCanvas.width = viewportWidth; |
451 | gGLMapCanvas.height = viewportHeight; | |
915d4271 RK |
452 | gTrackCanvas.width = viewportWidth; |
453 | gTrackCanvas.height = viewportHeight; | |
454 | drawMap(); | |
edc3be71 | 455 | gMap.resizeAndDrawGL(); |
915d4271 RK |
456 | showUI(); |
457 | } | |
23cd2dcc RK |
458 | } |
459 | ||
b5e49b95 RK |
460 | // Using scale(x, y) together with drawing old data on scaled canvas would be an improvement for zooming. |
461 | // See https://developer.mozilla.org/en-US/docs/Canvas_tutorial/Transformations#Scaling | |
462 | ||
23cd2dcc | 463 | function zoomIn() { |
dda55132 RK |
464 | if (gMap.pos.z < gMap.maxZoom) { |
465 | gMap.pos.z++; | |
23cd2dcc RK |
466 | drawMap(); |
467 | } | |
468 | } | |
469 | ||
470 | function zoomOut() { | |
dda55132 RK |
471 | if (gMap.pos.z > 0) { |
472 | gMap.pos.z--; | |
23cd2dcc RK |
473 | drawMap(); |
474 | } | |
475 | } | |
476 | ||
1222624d RK |
477 | function zoomTo(aTargetLevel) { |
478 | aTargetLevel = parseInt(aTargetLevel); | |
dda55132 RK |
479 | if (aTargetLevel >= 0 && aTargetLevel <= gMap.maxZoom) { |
480 | gMap.pos.z = aTargetLevel; | |
1222624d RK |
481 | drawMap(); |
482 | } | |
483 | } | |
484 | ||
55c4a0b7 | 485 | function gps2xy(aLatitude, aLongitude) { |
dda55132 | 486 | var maxZoomFactor = Math.pow(2, gMap.maxZoom) * gMap.tileSize; |
55c4a0b7 RK |
487 | var convLat = aLatitude * Math.PI / 180; |
488 | var rawY = (1 - Math.log(Math.tan(convLat) + | |
489 | 1 / Math.cos(convLat)) / Math.PI) / 2 * maxZoomFactor; | |
490 | var rawX = (aLongitude + 180) / 360 * maxZoomFactor; | |
491 | return {x: Math.round(rawX), | |
492 | y: Math.round(rawY)}; | |
493 | } | |
494 | ||
495 | function xy2gps(aX, aY) { | |
dda55132 | 496 | var maxZoomFactor = Math.pow(2, gMap.maxZoom) * gMap.tileSize; |
55c4a0b7 RK |
497 | var n = Math.PI - 2 * Math.PI * aY / maxZoomFactor; |
498 | return {latitude: 180 / Math.PI * | |
499 | Math.atan(0.5 * (Math.exp(n) - Math.exp(-n))), | |
500 | longitude: aX / maxZoomFactor * 360 - 180}; | |
501 | } | |
502 | ||
b47b4a65 RK |
503 | function setMapStyle() { |
504 | var mapSel = document.getElementById("mapSelector"); | |
dda55132 RK |
505 | if (mapSel.selectedIndex >= 0 && gMap.activeMap != mapSel.value) { |
506 | gMap.activeMap = mapSel.value; | |
95f49ba7 | 507 | document.getElementById("copyright").innerHTML = |
dda55132 | 508 | gMapStyles[gMap.activeMap].copyright; |
b5c85133 | 509 | showUI(); |
b47b4a65 RK |
510 | drawMap(); |
511 | } | |
512 | } | |
513 | ||
23cd2dcc RK |
514 | // A sane mod function that works for negative numbers. |
515 | // Returns a % b. | |
516 | function mod(a, b) { | |
517 | return ((a % b) + b) % b; | |
518 | } | |
519 | ||
a8634d37 RK |
520 | function normalizeCoords(aCoords) { |
521 | var zoomFactor = Math.pow(2, aCoords.z); | |
522 | return {x: mod(aCoords.x, zoomFactor), | |
523 | y: mod(aCoords.y, zoomFactor), | |
524 | z: aCoords.z}; | |
23cd2dcc RK |
525 | } |
526 | ||
527 | // Returns true if the tile is outside the current view. | |
528 | function isOutsideWindow(t) { | |
529 | var pos = decodeIndex(t); | |
23cd2dcc | 530 | |
dda55132 | 531 | var zoomFactor = Math.pow(2, gMap.maxZoom - pos.z); |
4b1d0915 RK |
532 | var wid = gMapCanvas.width * zoomFactor; |
533 | var ht = gMapCanvas.height * zoomFactor; | |
23cd2dcc | 534 | |
4b1d0915 RK |
535 | pos.x *= zoomFactor; |
536 | pos.y *= zoomFactor; | |
23cd2dcc | 537 | |
dda55132 RK |
538 | var sz = gMap.tileSize * zoomFactor; |
539 | if (pos.x > gMap.pos.x + wid / 2 || pos.y > gMap.pos.y + ht / 2 || | |
540 | pos.x + sz < gMap.pos.x - wid / 2 || pos.y - sz < gMap.pos.y - ht / 2) | |
23cd2dcc RK |
541 | return true; |
542 | return false; | |
543 | } | |
544 | ||
545 | function encodeIndex(x, y, z) { | |
a8634d37 | 546 | var norm = normalizeCoords({x: x, y: y, z: z}); |
23cd2dcc RK |
547 | return norm.x + "," + norm.y + "," + norm.z; |
548 | } | |
549 | ||
550 | function decodeIndex(encodedIdx) { | |
4b1d0915 RK |
551 | var ind = encodedIdx.split(",", 3); |
552 | return {x: ind[0], y: ind[1], z: ind[2]}; | |
23cd2dcc RK |
553 | } |
554 | ||
b5e49b95 | 555 | function drawMap(aPixels, aOverdraw) { |
dda55132 | 556 | gMap.drawGL(aPixels, aOverdraw); |
e8525b46 | 557 | /* |
b5e49b95 RK |
558 | // aPixels is an object with left/right/top/bottom members telling how many |
559 | // pixels on the borders should actually be drawn. | |
560 | // aOverdraw is a bool that tells if we should draw placeholders or draw | |
561 | // straight over the existing content. | |
562 | if (!aPixels) | |
563 | aPixels = {left: gMapCanvas.width, right: gMapCanvas.width, | |
564 | top: gMapCanvas.height, bottom: gMapCanvas.height}; | |
565 | if (!aOverdraw) | |
566 | aOverdraw = false; | |
567 | ||
dda55132 RK |
568 | document.getElementById("zoomLevel").textContent = gMap.pos.z; |
569 | gMap.zoomFactor = Math.pow(2, gMap.maxZoom - gMap.pos.z); | |
570 | var wid = gMapCanvas.width * gMap.zoomFactor; // Width in level 18 pixels. | |
571 | var ht = gMapCanvas.height * gMap.zoomFactor; // Height in level 18 pixels. | |
572 | var size = gMap.tileSize * gMap.zoomFactor; // Tile size in level 18 pixels. | |
23cd2dcc | 573 | |
dda55132 RK |
574 | var xMin = gMap.pos.x - wid / 2; // Corners of the window in level 18 pixels. |
575 | var yMin = gMap.pos.y - ht / 2; | |
576 | var xMax = gMap.pos.x + wid / 2; | |
577 | var yMax = gMap.pos.y + ht / 2; | |
23cd2dcc | 578 | |
3610c22d | 579 | if (gMapPrefsLoaded && mainDB) |
dda55132 | 580 | gPrefs.set("position", gMap.pos); |
3610c22d | 581 | |
dda55132 | 582 | var tiles = {left: Math.ceil((xMin + aPixels.left * gMap.zoomFactor) / size) - |
b5e49b95 | 583 | (aPixels.left ? 0 : 1), |
dda55132 | 584 | right: Math.floor((xMax - aPixels.right * gMap.zoomFactor) / size) - |
b5e49b95 | 585 | (aPixels.right ? 1 : 0), |
dda55132 | 586 | top: Math.ceil((yMin + aPixels.top * gMap.zoomFactor) / size) - |
b5e49b95 | 587 | (aPixels.top ? 0 : 1), |
dda55132 | 588 | bottom: Math.floor((yMax - aPixels.bottom * gMap.zoomFactor) / size) - |
b5e49b95 RK |
589 | (aPixels.bottom ? 1 : 0)}; |
590 | ||
591 | // Go through all the tiles in the map, find out if to draw them and do so. | |
b47b4a65 | 592 | for (var x = Math.floor(xMin / size); x < Math.ceil(xMax / size); x++) { |
0118cbd3 | 593 | for (var y = Math.floor(yMin / size); y < Math.ceil(yMax / size); y++) { // slow script warnings on the tablet appear here! |
b5e49b95 | 594 | // Only go to the drawing step if we need to draw this tile. |
68afcd96 RK |
595 | if (x < tiles.left || x > tiles.right || |
596 | y < tiles.top || y > tiles.bottom) { | |
b5e49b95 RK |
597 | // Round here is **CRUCIAL** otherwise the images are filtered |
598 | // and the performance sucks (more than expected). | |
dda55132 RK |
599 | var xoff = Math.round((x * size - xMin) / gMap.zoomFactor); |
600 | var yoff = Math.round((y * size - yMin) / gMap.zoomFactor); | |
b5e49b95 | 601 | // Draw placeholder tile unless we overdraw. |
68afcd96 RK |
602 | if (!aOverdraw && |
603 | (x < tiles.left -1 || x > tiles.right + 1 || | |
604 | y < tiles.top -1 || y > tiles.bottom + 1)) | |
b5e49b95 RK |
605 | gMapContext.drawImage(gLoadingTile, xoff, yoff); |
606 | ||
607 | // Initiate loading/drawing of the actual tile. | |
dda55132 | 608 | gTileService.get(gMap.activeMap, {x: x, y: y, z: gMap.pos.z}, |
e8525b46 | 609 | function(aImage, aStyle, aCoords, aTileKey) { |
b5e49b95 | 610 | // Only draw if this applies for the current view. |
dda55132 RK |
611 | if ((aStyle == gMap.activeMap) && (aCoords.z == gMap.pos.z)) { |
612 | var ixMin = gMap.pos.x - wid / 2; | |
613 | var iyMin = gMap.pos.y - ht / 2; | |
614 | var ixoff = Math.round((aCoords.x * size - ixMin) / gMap.zoomFactor); | |
615 | var iyoff = Math.round((aCoords.y * size - iyMin) / gMap.zoomFactor); | |
b5e49b95 RK |
616 | var URL = window.URL; |
617 | var imgURL = URL.createObjectURL(aImage); | |
618 | var imgObj = new Image(); | |
619 | imgObj.src = imgURL; | |
620 | imgObj.onload = function() { | |
621 | gMapContext.drawImage(imgObj, ixoff, iyoff); | |
622 | URL.revokeObjectURL(imgURL); | |
623 | } | |
a2131f63 | 624 | } |
b5e49b95 RK |
625 | }); |
626 | } | |
23cd2dcc RK |
627 | } |
628 | } | |
e8525b46 | 629 | */ |
6ddefbf9 RK |
630 | drawTrack(); |
631 | } | |
632 | ||
633 | function drawTrack() { | |
4b1d0915 RK |
634 | gLastDrawnPoint = null; |
635 | gCurPosMapCache = undefined; | |
636 | gTrackContext.clearRect(0, 0, gTrackCanvas.width, gTrackCanvas.height); | |
14e6d3ad | 637 | if (gTrack.length) { |
55c4a0b7 | 638 | for (var i = 0; i < gTrack.length; i++) { |
14e6d3ad RK |
639 | drawTrackPoint(gTrack[i].coords.latitude, gTrack[i].coords.longitude, |
640 | (i + 1 >= gTrack.length)); | |
55c4a0b7 | 641 | } |
14e6d3ad | 642 | } |
55c4a0b7 RK |
643 | } |
644 | ||
14e6d3ad | 645 | function drawTrackPoint(aLatitude, aLongitude, lastPoint) { |
55c4a0b7 | 646 | var trackpoint = gps2xy(aLatitude, aLongitude); |
14e6d3ad RK |
647 | // lastPoint is for optimizing (not actually executing the draw until the last) |
648 | trackpoint.optimized = (lastPoint === false); | |
dda55132 RK |
649 | var mappos = {x: Math.round((trackpoint.x - gMap.pos.x) / gMap.zoomFactor + gMapCanvas.width / 2), |
650 | y: Math.round((trackpoint.y - gMap.pos.y) / gMap.zoomFactor + gMapCanvas.height / 2)}; | |
14e6d3ad RK |
651 | |
652 | if (!gLastDrawnPoint || !gLastDrawnPoint.optimized) { | |
4b1d0915 RK |
653 | gTrackContext.strokeStyle = gTrackColor; |
654 | gTrackContext.fillStyle = gTrackContext.strokeStyle; | |
655 | gTrackContext.lineWidth = gTrackWidth; | |
656 | gTrackContext.lineCap = "round"; | |
657 | gTrackContext.lineJoin = "round"; | |
14e6d3ad RK |
658 | } |
659 | if (!gLastDrawnPoint || gLastDrawnPoint == trackpoint) { | |
660 | // This breaks optimiziation, so make sure to close path and reset optimization. | |
661 | if (gLastDrawnPoint && gLastDrawnPoint.optimized) | |
4b1d0915 RK |
662 | gTrackContext.stroke(); |
663 | gTrackContext.beginPath(); | |
14e6d3ad | 664 | trackpoint.optimized = false; |
4b1d0915 RK |
665 | gTrackContext.arc(mappos.x, mappos.y, |
666 | gTrackContext.lineWidth, 0, Math.PI * 2, false); | |
667 | gTrackContext.fill(); | |
55c4a0b7 RK |
668 | } |
669 | else { | |
14e6d3ad | 670 | if (!gLastDrawnPoint || !gLastDrawnPoint.optimized) { |
4b1d0915 | 671 | gTrackContext.beginPath(); |
dda55132 RK |
672 | gTrackContext.moveTo(Math.round((gLastDrawnPoint.x - gMap.pos.x) / gMap.zoomFactor + gMapCanvas.width / 2), |
673 | Math.round((gLastDrawnPoint.y - gMap.pos.y) / gMap.zoomFactor + gMapCanvas.height / 2)); | |
14e6d3ad | 674 | } |
4b1d0915 | 675 | gTrackContext.lineTo(mappos.x, mappos.y); |
14e6d3ad | 676 | if (!trackpoint.optimized) |
4b1d0915 | 677 | gTrackContext.stroke(); |
55c4a0b7 | 678 | } |
14e6d3ad | 679 | gLastDrawnPoint = trackpoint; |
23cd2dcc RK |
680 | } |
681 | ||
b054bd48 | 682 | function drawCurrentLocation(trackPoint) { |
4b1d0915 RK |
683 | var locpoint = gps2xy(trackPoint.coords.latitude, trackPoint.coords.longitude); |
684 | var circleRadius = Math.round(gCurLocSize / 2); | |
dda55132 RK |
685 | var mappos = {x: Math.round((locpoint.x - gMap.pos.x) / gMap.zoomFactor + gMapCanvas.width / 2), |
686 | y: Math.round((locpoint.y - gMap.pos.y) / gMap.zoomFactor + gMapCanvas.height / 2)}; | |
4b1d0915 RK |
687 | |
688 | undrawCurrentLocation(); | |
b054bd48 RK |
689 | |
690 | // Cache overdrawn area. | |
4b1d0915 RK |
691 | gCurPosMapCache = |
692 | {point: locpoint, | |
693 | radius: circleRadius, | |
694 | data: gTrackContext.getImageData(mappos.x - circleRadius, | |
695 | mappos.y - circleRadius, | |
696 | circleRadius * 2, circleRadius * 2)}; | |
697 | ||
698 | gTrackContext.strokeStyle = gCurLocColor; | |
699 | gTrackContext.fillStyle = gTrackContext.strokeStyle; | |
700 | gTrackContext.beginPath(); | |
701 | gTrackContext.arc(mappos.x, mappos.y, | |
702 | circleRadius, 0, Math.PI * 2, false); | |
703 | gTrackContext.fill(); | |
704 | } | |
705 | ||
706 | function undrawCurrentLocation() { | |
707 | if (gCurPosMapCache) { | |
708 | var oldpoint = gCurPosMapCache.point; | |
dda55132 RK |
709 | var oldmp = {x: Math.round((oldpoint.x - gMap.pos.x) / gMap.zoomFactor + gMapCanvas.width / 2), |
710 | y: Math.round((oldpoint.y - gMap.pos.y) / gMap.zoomFactor + gMapCanvas.height / 2)}; | |
4b1d0915 RK |
711 | gTrackContext.putImageData(gCurPosMapCache.data, |
712 | oldmp.x - gCurPosMapCache.radius, | |
713 | oldmp.y - gCurPosMapCache.radius); | |
714 | gCurPosMapCache = undefined; | |
715 | } | |
b054bd48 RK |
716 | } |
717 | ||
23cd2dcc RK |
718 | var mapEvHandler = { |
719 | handleEvent: function(aEvent) { | |
720 | var touchEvent = aEvent.type.indexOf('touch') != -1; | |
721 | ||
306ae634 RK |
722 | if (touchEvent) { |
723 | aEvent.stopPropagation(); | |
724 | } | |
725 | ||
8389557a RK |
726 | // Bail out if the event is happening on an input. |
727 | if (aEvent.target.tagName.toLowerCase() == "input") | |
728 | return; | |
729 | ||
1222624d RK |
730 | // Bail out on unwanted map moves, but not zoom or keyboard events. |
731 | if (aEvent.type.indexOf("mouse") === 0 || aEvent.type.indexOf("touch") === 0) { | |
23cd2dcc RK |
732 | // Bail out if this is neither a touch nor left-click. |
733 | if (!touchEvent && aEvent.button != 0) | |
734 | return; | |
735 | ||
736 | // Bail out if the started touch can't be found. | |
4b12da3a RK |
737 | if (touchEvent && gDragging && |
738 | !aEvent.changedTouches.identifiedTouch(gDragTouchID)) | |
23cd2dcc RK |
739 | return; |
740 | } | |
741 | ||
742 | var coordObj = touchEvent ? | |
4b12da3a | 743 | aEvent.changedTouches.identifiedTouch(gDragTouchID) : |
23cd2dcc RK |
744 | aEvent; |
745 | ||
746 | switch (aEvent.type) { | |
747 | case "mousedown": | |
748 | case "touchstart": | |
749 | if (touchEvent) { | |
517c0099 RK |
750 | if (aEvent.targetTouches.length == 2) { |
751 | gPinchStartWidth = Math.sqrt( | |
752 | Math.pow(aEvent.targetTouches.item(1).clientX - | |
753 | aEvent.targetTouches.item(0).clientX, 2) + | |
754 | Math.pow(aEvent.targetTouches.item(1).clientY - | |
755 | aEvent.targetTouches.item(0).clientY, 2) | |
756 | ); | |
757 | } | |
4b12da3a RK |
758 | gDragTouchID = aEvent.changedTouches.item(0).identifier; |
759 | coordObj = aEvent.changedTouches.identifiedTouch(gDragTouchID); | |
23cd2dcc | 760 | } |
4b1d0915 RK |
761 | var x = coordObj.clientX - gMapCanvas.offsetLeft; |
762 | var y = coordObj.clientY - gMapCanvas.offsetTop; | |
b395419b | 763 | |
23cd2dcc RK |
764 | if (touchEvent || aEvent.button === 0) { |
765 | gDragging = true; | |
766 | } | |
767 | gLastMouseX = x; | |
768 | gLastMouseY = y; | |
7a549148 | 769 | showUI(); |
23cd2dcc RK |
770 | break; |
771 | case "mousemove": | |
772 | case "touchmove": | |
517c0099 RK |
773 | if (touchEvent && aEvent.targetTouches.length == 2) { |
774 | curPinchStartWidth = Math.sqrt( | |
775 | Math.pow(aEvent.targetTouches.item(1).clientX - | |
776 | aEvent.targetTouches.item(0).clientX, 2) + | |
777 | Math.pow(aEvent.targetTouches.item(1).clientY - | |
778 | aEvent.targetTouches.item(0).clientY, 2) | |
779 | ); | |
003d56f8 RK |
780 | if (!gPinchStartWidth) |
781 | gPinchStartWidth = curPinchStartWidth; | |
d07d7abc | 782 | |
517c0099 RK |
783 | if (gPinchStartWidth / curPinchStartWidth > 1.7 || |
784 | gPinchStartWidth / curPinchStartWidth < 0.6) { | |
dda55132 RK |
785 | var newZoomLevel = gMap.pos.z + (gPinchStartWidth < curPinchStartWidth ? 1 : -1); |
786 | if ((newZoomLevel >= 0) && (newZoomLevel <= gMap.maxZoom)) { | |
517c0099 RK |
787 | // Calculate new center of the map - preserve middle of pinch. |
788 | // This means that pixel distance between old center and middle | |
789 | // must equal pixel distance of new center and middle. | |
790 | var x = (aEvent.targetTouches.item(1).clientX + | |
791 | aEvent.targetTouches.item(0).clientX) / 2 - | |
792 | gMapCanvas.offsetLeft; | |
793 | var y = (aEvent.targetTouches.item(1).clientY + | |
794 | aEvent.targetTouches.item(0).clientY) / 2 - | |
795 | gMapCanvas.offsetTop; | |
796 | ||
797 | // Zoom factor after this action. | |
dda55132 RK |
798 | var newZoomFactor = Math.pow(2, gMap.maxZoom - newZoomLevel); |
799 | gMap.pos.x -= (x - gMapCanvas.width / 2) * (newZoomFactor - gMap.zoomFactor); | |
800 | gMap.pos.y -= (y - gMapCanvas.height / 2) * (newZoomFactor - gMap.zoomFactor); | |
517c0099 RK |
801 | |
802 | if (gPinchStartWidth < curPinchStartWidth) | |
803 | zoomIn(); | |
804 | else | |
805 | zoomOut(); | |
003d56f8 RK |
806 | |
807 | // Reset pinch start width and start another pinch gesture. | |
808 | gPinchStartWidth = null; | |
517c0099 RK |
809 | } |
810 | } | |
d07d7abc | 811 | // If we are in a pinch, do not drag. |
517c0099 RK |
812 | break; |
813 | } | |
4b1d0915 RK |
814 | var x = coordObj.clientX - gMapCanvas.offsetLeft; |
815 | var y = coordObj.clientY - gMapCanvas.offsetTop; | |
23cd2dcc RK |
816 | if (gDragging === true) { |
817 | var dX = x - gLastMouseX; | |
818 | var dY = y - gLastMouseY; | |
dda55132 RK |
819 | gMap.pos.x -= dX * gMap.zoomFactor; |
820 | gMap.pos.y -= dY * gMap.zoomFactor; | |
747bbd55 RK |
821 | if (true) { // use optimized path |
822 | var mapData = gMapContext.getImageData(0, 0, | |
823 | gMapCanvas.width, | |
824 | gMapCanvas.height); | |
825 | gMapContext.clearRect(0, 0, gMapCanvas.width, gMapCanvas.height); | |
826 | gMapContext.putImageData(mapData, dX, dY); | |
827 | drawMap({left: (dX > 0) ? dX : 0, | |
828 | right: (dX < 0) ? -dX : 0, | |
829 | top: (dY > 0) ? dY : 0, | |
830 | bottom: (dY < 0) ? -dY : 0}); | |
831 | } | |
832 | else { | |
833 | drawMap(false, true); | |
834 | } | |
7a549148 | 835 | showUI(); |
23cd2dcc RK |
836 | } |
837 | gLastMouseX = x; | |
838 | gLastMouseY = y; | |
839 | break; | |
840 | case "mouseup": | |
841 | case "touchend": | |
d07d7abc | 842 | gPinchStartWidth = null; |
23cd2dcc | 843 | gDragging = false; |
7a549148 | 844 | showUI(); |
23cd2dcc RK |
845 | break; |
846 | case "mouseout": | |
847 | case "touchcancel": | |
848 | case "touchleave": | |
849 | //gDragging = false; | |
850 | break; | |
5fb31b29 RK |
851 | case "wheel": |
852 | // If we'd want pixels, we'd need to calc up using aEvent.deltaMode. | |
853 | // See https://developer.mozilla.org/en-US/docs/Mozilla_event_reference/wheel | |
854 | ||
855 | // Only accept (non-null) deltaY values | |
856 | if (!aEvent.deltaY) | |
857 | break; | |
23cd2dcc | 858 | |
55c4a0b7 RK |
859 | // Debug output: "coordinates" of the point the mouse was over. |
860 | /* | |
dda55132 RK |
861 | var ptCoord = {x: gMap.pos.x + (x - gMapCanvas.width / 2) * gMap.zoomFactor, |
862 | y: gMap.pos.y + (x - gMapCanvas.height / 2) * gMap.zoomFactor}; | |
55c4a0b7 RK |
863 | var gpsCoord = xy2gps(ptCoord.x, ptCoord.y); |
864 | var pt2Coord = gps2xy(gpsCoord.latitude, gpsCoord.longitude); | |
915d4271 RK |
865 | console.log(ptCoord.x + "/" + ptCoord.y + " - " + |
866 | gpsCoord.latitude + "/" + gpsCoord.longitude + " - " + | |
867 | pt2Coord.x + "/" + pt2Coord.y); | |
55c4a0b7 | 868 | */ |
4b1d0915 | 869 | |
dda55132 RK |
870 | var newZoomLevel = gMap.pos.z + (aEvent.deltaY < 0 ? 1 : -1); |
871 | if ((newZoomLevel >= 0) && (newZoomLevel <= gMap.maxZoom)) { | |
4b1d0915 RK |
872 | // Calculate new center of the map - same point stays under the mouse. |
873 | // This means that the pixel distance between the old center and point | |
874 | // must equal the pixel distance of the new center and that point. | |
875 | var x = coordObj.clientX - gMapCanvas.offsetLeft; | |
876 | var y = coordObj.clientY - gMapCanvas.offsetTop; | |
877 | ||
878 | // Zoom factor after this action. | |
dda55132 RK |
879 | var newZoomFactor = Math.pow(2, gMap.maxZoom - newZoomLevel); |
880 | gMap.pos.x -= (x - gMapCanvas.width / 2) * (newZoomFactor - gMap.zoomFactor); | |
881 | gMap.pos.y -= (y - gMapCanvas.height / 2) * (newZoomFactor - gMap.zoomFactor); | |
4b1d0915 | 882 | |
5fb31b29 | 883 | if (aEvent.deltaY < 0) |
4b1d0915 | 884 | zoomIn(); |
5fb31b29 | 885 | else |
4b1d0915 RK |
886 | zoomOut(); |
887 | } | |
23cd2dcc | 888 | break; |
1222624d RK |
889 | case "keydown": |
890 | // Allow keyboard control to move and zoom the map. | |
891 | // Should use aEvent.key instead of aEvent.which but needs bug 680830. | |
892 | // See https://developer.mozilla.org/en-US/docs/DOM/Mozilla_event_reference/keydown | |
893 | var dX = 0; | |
894 | var dY = 0; | |
895 | switch (aEvent.which) { | |
896 | case 39: // right | |
dda55132 | 897 | dX = -gMap.tileSize / 2; |
1222624d RK |
898 | break; |
899 | case 37: // left | |
dda55132 | 900 | dX = gMap.tileSize / 2; |
1222624d RK |
901 | break; |
902 | case 38: // up | |
dda55132 | 903 | dY = gMap.tileSize / 2; |
1222624d RK |
904 | break; |
905 | case 40: // down | |
dda55132 | 906 | dY = -gMap.tileSize / 2; |
1222624d RK |
907 | break; |
908 | case 87: // w | |
909 | case 107: // + (numpad) | |
910 | case 171: // + (normal key) | |
911 | zoomIn(); | |
912 | break; | |
913 | case 83: // s | |
914 | case 109: // - (numpad) | |
915 | case 173: // - (normal key) | |
916 | zoomOut(); | |
917 | break; | |
918 | case 48: // 0 | |
919 | case 49: // 1 | |
920 | case 50: // 2 | |
921 | case 51: // 3 | |
922 | case 52: // 4 | |
923 | case 53: // 5 | |
924 | case 54: // 6 | |
925 | case 55: // 7 | |
926 | case 56: // 8 | |
927 | zoomTo(aEvent.which - 38); | |
928 | break; | |
929 | case 57: // 9 | |
930 | zoomTo(9); | |
931 | break; | |
932 | case 96: // 0 (numpad) | |
933 | case 97: // 1 (numpad) | |
934 | case 98: // 2 (numpad) | |
935 | case 99: // 3 (numpad) | |
936 | case 100: // 4 (numpad) | |
937 | case 101: // 5 (numpad) | |
938 | case 102: // 6 (numpad) | |
939 | case 103: // 7 (numpad) | |
940 | case 104: // 8 (numpad) | |
941 | zoomTo(aEvent.which - 86); | |
942 | break; | |
943 | case 105: // 9 (numpad) | |
944 | zoomTo(9); | |
945 | break; | |
946 | default: // not supported | |
947 | console.log("key not supported: " + aEvent.which); | |
948 | break; | |
949 | } | |
950 | ||
951 | // Move if needed. | |
952 | if (dX || dY) { | |
dda55132 RK |
953 | gMap.pos.x -= dX * gMap.zoomFactor; |
954 | gMap.pos.y -= dY * gMap.zoomFactor; | |
1222624d RK |
955 | if (true) { // use optimized path |
956 | var mapData = gMapContext.getImageData(0, 0, | |
957 | gMapCanvas.width, | |
958 | gMapCanvas.height); | |
959 | gMapContext.clearRect(0, 0, gMapCanvas.width, gMapCanvas.height); | |
960 | gMapContext.putImageData(mapData, dX, dY); | |
961 | drawMap({left: (dX > 0) ? dX : 0, | |
962 | right: (dX < 0) ? -dX : 0, | |
963 | top: (dY > 0) ? dY : 0, | |
964 | bottom: (dY < 0) ? -dY : 0}); | |
965 | } | |
966 | else { | |
967 | drawMap(false, true); | |
968 | } | |
969 | } | |
970 | break; | |
23cd2dcc RK |
971 | } |
972 | } | |
973 | }; | |
55c4a0b7 | 974 | |
993fd081 | 975 | var geofake = { |
55c4a0b7 | 976 | tracking: false, |
4b12da3a | 977 | lastPos: {x: undefined, y: undefined}, |
55c4a0b7 RK |
978 | watchPosition: function(aSuccessCallback, aErrorCallback, aPrefObject) { |
979 | this.tracking = true; | |
980 | var watchCall = function() { | |
4b12da3a RK |
981 | // calc new position in lat/lon degrees |
982 | // 90° on Earth surface are ~10,000 km at the equator, | |
983 | // so try moving at most 10m at a time | |
984 | if (geofake.lastPos.x) | |
985 | geofake.lastPos.x += (Math.random() - .5) * 90 / 1000000 | |
986 | else | |
987 | geofake.lastPos.x = 48.208174 | |
988 | if (geofake.lastPos.y) | |
989 | geofake.lastPos.y += (Math.random() - .5) * 90 / 1000000 | |
990 | else | |
991 | geofake.lastPos.y = 16.373819 | |
55c4a0b7 | 992 | aSuccessCallback({timestamp: Date.now(), |
4b12da3a RK |
993 | coords: {latitude: geofake.lastPos.x, |
994 | longitude: geofake.lastPos.y, | |
55c4a0b7 RK |
995 | accuracy: 20}}); |
996 | if (geofake.tracking) | |
997 | setTimeout(watchCall, 1000); | |
998 | }; | |
999 | setTimeout(watchCall, 1000); | |
1000 | return "foo"; | |
1001 | }, | |
1002 | clearWatch: function(aID) { | |
1003 | this.tracking = false; | |
1004 | } | |
1005 | } | |
1006 | ||
3610c22d RK |
1007 | function setCentering(aCheckbox) { |
1008 | if (gMapPrefsLoaded && mainDB) | |
1009 | gPrefs.set("center_map", aCheckbox.checked); | |
1010 | gCenterPosition = aCheckbox.checked; | |
1011 | } | |
1012 | ||
1013 | function setTracking(aCheckbox) { | |
1014 | if (gMapPrefsLoaded && mainDB) | |
1015 | gPrefs.set("tracking_enabled", aCheckbox.checked); | |
1016 | if (aCheckbox.checked) | |
1017 | startTracking(); | |
1018 | else | |
1019 | endTracking(); | |
1020 | } | |
1021 | ||
55c4a0b7 | 1022 | function startTracking() { |
31f0fe16 | 1023 | if (gGeolocation) { |
68afcd96 RK |
1024 | gActionLabel.textContent = "Establishing Position"; |
1025 | gAction.style.display = "block"; | |
4b12da3a | 1026 | gGeoWatchID = gGeolocation.watchPosition( |
55c4a0b7 | 1027 | function(position) { |
68afcd96 RK |
1028 | if (gActionLabel.textContent) { |
1029 | gActionLabel.textContent = ""; | |
1030 | gAction.style.display = "none"; | |
1031 | } | |
55c4a0b7 | 1032 | // Coords spec: https://developer.mozilla.org/en/XPCOM_Interface_Reference/NsIDOMGeoPositionCoords |
993fd081 | 1033 | var tPoint = {time: position.timestamp, |
31f0fe16 RK |
1034 | coords: {latitude: position.coords.latitude, |
1035 | longitude: position.coords.longitude, | |
1036 | altitude: position.coords.altitude, | |
1037 | accuracy: position.coords.accuracy, | |
1038 | altitudeAccuracy: position.coords.altitudeAccuracy, | |
1039 | heading: position.coords.heading, | |
1040 | speed: position.coords.speed}, | |
993fd081 | 1041 | beginSegment: !gLastTrackPoint}; |
b054bd48 RK |
1042 | // Only add point to track is accuracy is good enough. |
1043 | if (tPoint.coords.accuracy < gMinTrackAccuracy) { | |
1044 | gLastTrackPoint = tPoint; | |
1045 | gTrack.push(tPoint); | |
1046 | try { gTrackStore.push(tPoint); } catch(e) {} | |
1047 | var redrawn = false; | |
1048 | if (gCenterPosition) { | |
1049 | var posCoord = gps2xy(position.coords.latitude, | |
1050 | position.coords.longitude); | |
dda55132 RK |
1051 | if (Math.abs(gMap.pos.x - posCoord.x) > gMapCanvas.width * gMap.zoomFactor / 4 || |
1052 | Math.abs(gMap.pos.y - posCoord.y) > gMapCanvas.height * gMap.zoomFactor / 4) { | |
1053 | gMap.pos.x = posCoord.x; | |
1054 | gMap.pos.y = posCoord.y; | |
b054bd48 RK |
1055 | drawMap(); // This draws the current point as well. |
1056 | redrawn = true; | |
1057 | } | |
99631a75 | 1058 | } |
b054bd48 | 1059 | if (!redrawn) |
4b1d0915 | 1060 | undrawCurrentLocation(); |
b054bd48 | 1061 | drawTrackPoint(position.coords.latitude, position.coords.longitude, true); |
05c21757 | 1062 | } |
b054bd48 | 1063 | drawCurrentLocation(tPoint); |
55c4a0b7 RK |
1064 | }, |
1065 | function(error) { | |
1066 | // Ignore erros for the moment, but this is good for debugging. | |
1067 | // See https://developer.mozilla.org/en/Using_geolocation#Handling_errors | |
915d4271 RK |
1068 | if (gDebug) |
1069 | console.log(error.message); | |
55c4a0b7 RK |
1070 | }, |
1071 | {enableHighAccuracy: true} | |
1072 | ); | |
1073 | } | |
1074 | } | |
1075 | ||
1076 | function endTracking() { | |
68afcd96 RK |
1077 | if (gActionLabel.textContent) { |
1078 | gActionLabel.textContent = ""; | |
1079 | gAction.style.display = "none"; | |
1080 | } | |
55c4a0b7 | 1081 | if (gGeoWatchID) { |
4b12da3a | 1082 | gGeolocation.clearWatch(gGeoWatchID); |
55c4a0b7 RK |
1083 | } |
1084 | } | |
993fd081 RK |
1085 | |
1086 | function clearTrack() { | |
1087 | gTrack = []; | |
1088 | gTrackStore.clear(); | |
6ddefbf9 | 1089 | drawTrack(); |
993fd081 | 1090 | } |
a8634d37 RK |
1091 | |
1092 | var gTileService = { | |
1093 | objStore: "tilecache", | |
1094 | ||
5d67397a | 1095 | ageLimit: 14 * 86400 * 1000, // 2 weeks (in ms) |
3431f496 | 1096 | |
a8634d37 RK |
1097 | get: function(aStyle, aCoords, aCallback) { |
1098 | var norm = normalizeCoords(aCoords); | |
1099 | var dbkey = aStyle + "::" + norm.x + "," + norm.y + "," + norm.z; | |
1100 | this.getDBCache(dbkey, function(aResult, aEvent) { | |
1101 | if (aResult) { | |
1102 | // We did get a cached object. | |
e8525b46 | 1103 | aCallback(aResult.image, aStyle, aCoords, dbkey); |
3431f496 | 1104 | // Look at the timestamp and return if it's not too old. |
5d67397a | 1105 | if (aResult.timestamp + gTileService.ageLimit > Date.now()) |
3431f496 RK |
1106 | return; |
1107 | // Reload cached tile otherwise. | |
5d67397a RK |
1108 | var oldDate = new Date(aResult.timestamp); |
1109 | console.log("reload cached tile: " + dbkey + " - " + oldDate.toUTCString()); | |
a8634d37 | 1110 | } |
3431f496 RK |
1111 | // Retrieve image from the web and store it in the cache. |
1112 | var XHR = new XMLHttpRequest(); | |
1113 | XHR.open("GET", | |
1114 | gMapStyles[aStyle].url | |
1115 | .replace("{x}", norm.x) | |
1116 | .replace("{y}", norm.y) | |
1117 | .replace("{z}", norm.z) | |
1118 | .replace("[a-c]", String.fromCharCode(97 + Math.floor(Math.random() * 2))) | |
1119 | .replace("[1-4]", 1 + Math.floor(Math.random() * 3)), | |
1120 | true); | |
1121 | XHR.responseType = "blob"; | |
1122 | XHR.addEventListener("load", function () { | |
1123 | if (XHR.status === 200) { | |
1124 | var blob = XHR.response; | |
e8525b46 | 1125 | aCallback(blob, aStyle, aCoords, dbkey); |
6d7cdcf6 | 1126 | gTileService.setDBCache(dbkey, {image: blob, timestamp: Date.now()}); |
3431f496 RK |
1127 | } |
1128 | }, false); | |
1129 | XHR.send(); | |
a8634d37 RK |
1130 | }); |
1131 | }, | |
1132 | ||
1133 | getDBCache: function(aKey, aCallback) { | |
1134 | if (!mainDB) | |
1135 | return; | |
1136 | var transaction = mainDB.transaction([this.objStore]); | |
1137 | var request = transaction.objectStore(this.objStore).get(aKey); | |
1138 | request.onsuccess = function(event) { | |
1139 | aCallback(request.result, event); | |
1140 | }; | |
1141 | request.onerror = function(event) { | |
1142 | // Errors can be handled here. | |
1143 | aCallback(undefined, event); | |
1144 | }; | |
1145 | }, | |
1146 | ||
1147 | setDBCache: function(aKey, aValue, aCallback) { | |
1148 | if (!mainDB) | |
1149 | return; | |
1150 | var success = false; | |
1151 | var transaction = mainDB.transaction([this.objStore], "readwrite"); | |
1152 | var objStore = transaction.objectStore(this.objStore); | |
1153 | var request = objStore.put(aValue, aKey); | |
1154 | request.onsuccess = function(event) { | |
1155 | success = true; | |
1156 | if (aCallback) | |
1157 | aCallback(success, event); | |
1158 | }; | |
1159 | request.onerror = function(event) { | |
1160 | // Errors can be handled here. | |
1161 | if (aCallback) | |
1162 | aCallback(success, event); | |
1163 | }; | |
1164 | }, | |
1165 | ||
1166 | unsetDBCache: function(aKey, aCallback) { | |
1167 | if (!mainDB) | |
1168 | return; | |
1169 | var success = false; | |
1170 | var transaction = mainDB.transaction([this.objStore], "readwrite"); | |
1171 | var request = transaction.objectStore(this.objStore).delete(aKey); | |
1172 | request.onsuccess = function(event) { | |
1173 | success = true; | |
1174 | if (aCallback) | |
1175 | aCallback(success, event); | |
1176 | }; | |
1177 | request.onerror = function(event) { | |
1178 | // Errors can be handled here. | |
1179 | if (aCallback) | |
1180 | aCallback(success, event); | |
1181 | } | |
3431f496 RK |
1182 | }, |
1183 | ||
1184 | clearDB: function(aCallback) { | |
1185 | if (!mainDB) | |
1186 | return; | |
1187 | var success = false; | |
1188 | var transaction = mainDB.transaction([this.objStore], "readwrite"); | |
1189 | var request = transaction.objectStore(this.objStore).clear(); | |
1190 | request.onsuccess = function(event) { | |
1191 | success = true; | |
1192 | if (aCallback) | |
1193 | aCallback(success, event); | |
1194 | }; | |
1195 | request.onerror = function(event) { | |
1196 | // Errors can be handled here. | |
1197 | if (aCallback) | |
1198 | aCallback(success, event); | |
1199 | } | |
a8634d37 RK |
1200 | } |
1201 | }; |