| 提交 | 用户 | 时间 | ||
| 58d006 | 1 | if (!(typeof window.google === 'object' && window.google.maps)) { |
| A | 2 | throw 'Google Maps API is required. Please register the following JavaScript library http://maps.google.com/maps/api/js?sensor=true.' |
| 3 | } | |
| 4 | ||
| 5 | var extend_object = function(obj, new_obj) { | |
| 6 | var name; | |
| 7 | ||
| 8 | if (obj === new_obj) { | |
| 9 | return obj; | |
| 10 | } | |
| 11 | ||
| 12 | for (name in new_obj) { | |
| 13 | obj[name] = new_obj[name]; | |
| 14 | } | |
| 15 | ||
| 16 | return obj; | |
| 17 | }; | |
| 18 | ||
| 19 | var replace_object = function(obj, replace) { | |
| 20 | var name; | |
| 21 | ||
| 22 | if (obj === replace) { | |
| 23 | return obj; | |
| 24 | } | |
| 25 | ||
| 26 | for (name in replace) { | |
| 27 | if (obj[name] != undefined) { | |
| 28 | obj[name] = replace[name]; | |
| 29 | } | |
| 30 | } | |
| 31 | ||
| 32 | return obj; | |
| 33 | }; | |
| 34 | ||
| 35 | var array_map = function(array, callback) { | |
| 36 | var original_callback_params = Array.prototype.slice.call(arguments, 2), | |
| 37 | array_return = [], | |
| 38 | array_length = array.length, | |
| 39 | i; | |
| 40 | ||
| 41 | if (Array.prototype.map && array.map === Array.prototype.map) { | |
| 42 | array_return = Array.prototype.map.call(array, function(item) { | |
| 43 | callback_params = original_callback_params; | |
| 44 | callback_params.splice(0, 0, item); | |
| 45 | ||
| 46 | return callback.apply(this, callback_params); | |
| 47 | }); | |
| 48 | } | |
| 49 | else { | |
| 50 | for (i = 0; i < array_length; i++) { | |
| 51 | callback_params = original_callback_params; | |
| 52 | callback_params.splice(0, 0, array[i]); | |
| 53 | array_return.push(callback.apply(this, callback_params)); | |
| 54 | } | |
| 55 | } | |
| 56 | ||
| 57 | return array_return; | |
| 58 | }; | |
| 59 | ||
| 60 | var array_flat = function(array) { | |
| 61 | var new_array = [], | |
| 62 | i; | |
| 63 | ||
| 64 | for (i = 0; i < array.length; i++) { | |
| 65 | new_array = new_array.concat(array[i]); | |
| 66 | } | |
| 67 | ||
| 68 | return new_array; | |
| 69 | }; | |
| 70 | ||
| 71 | var coordsToLatLngs = function(coords, useGeoJSON) { | |
| 72 | var first_coord = coords[0], | |
| 73 | second_coord = coords[1]; | |
| 74 | ||
| 75 | if (useGeoJSON) { | |
| 76 | first_coord = coords[1]; | |
| 77 | second_coord = coords[0]; | |
| 78 | } | |
| 79 | ||
| 80 | return new google.maps.LatLng(first_coord, second_coord); | |
| 81 | }; | |
| 82 | ||
| 83 | var arrayToLatLng = function(coords, useGeoJSON) { | |
| 84 | var i; | |
| 85 | ||
| 86 | for (i = 0; i < coords.length; i++) { | |
| 87 | if (coords[i].length > 0 && typeof(coords[i][0]) == "object") { | |
| 88 | coords[i] = arrayToLatLng(coords[i], useGeoJSON); | |
| 89 | } | |
| 90 | else { | |
| 91 | coords[i] = coordsToLatLngs(coords[i], useGeoJSON); | |
| 92 | } | |
| 93 | } | |
| 94 | ||
| 95 | return coords; | |
| 96 | }; | |
| 97 | ||
| 98 | var getElementById = function(id, context) { | |
| 99 | var element, | |
| 100 | id = id.replace('#', ''); | |
| 101 | ||
| 102 | if ('jQuery' in this && context) { | |
| 103 | element = $("#" + id, context)[0]; | |
| 104 | } else { | |
| 105 | element = document.getElementById(id); | |
| 106 | }; | |
| 107 | ||
| 108 | return element; | |
| 109 | }; | |
| 110 | ||
| 111 | var findAbsolutePosition = function(obj) { | |
| 112 | var curleft = 0, | |
| 113 | curtop = 0; | |
| 114 | ||
| 115 | if (obj.offsetParent) { | |
| 116 | do { | |
| 117 | curleft += obj.offsetLeft; | |
| 118 | curtop += obj.offsetTop; | |
| 119 | } while (obj = obj.offsetParent); | |
| 120 | } | |
| 121 | ||
| 122 | return [curleft, curtop]; | |
| 123 | }; | |
| 124 | ||
| 125 | var GMaps = (function(global) { | |
| 126 | "use strict"; | |
| 127 | ||
| 128 | var doc = document; | |
| 129 | ||
| 130 | var GMaps = function(options) { | |
| 131 | if (!this) return new GMaps(options); | |
| 132 | ||
| 133 | options.zoom = options.zoom || 15; | |
| 134 | options.mapType = options.mapType || 'roadmap'; | |
| 135 | ||
| 136 | var self = this, | |
| 137 | i, | |
| 138 | events_that_hide_context_menu = ['bounds_changed', 'center_changed', 'click', 'dblclick', 'drag', 'dragend', 'dragstart', 'idle', 'maptypeid_changed', 'projection_changed', 'resize', 'tilesloaded', 'zoom_changed'], | |
| 139 | events_that_doesnt_hide_context_menu = ['mousemove', 'mouseout', 'mouseover'], | |
| 140 | options_to_be_deleted = ['el', 'lat', 'lng', 'mapType', 'width', 'height', 'markerClusterer', 'enableNewStyle'], | |
| 141 | container_id = options.el || options.div, | |
| 142 | markerClustererFunction = options.markerClusterer, | |
| 143 | mapType = google.maps.MapTypeId[options.mapType.toUpperCase()], | |
| 144 | map_center = new google.maps.LatLng(options.lat, options.lng), | |
| 145 | zoomControl = options.zoomControl || true, | |
| 146 | zoomControlOpt = options.zoomControlOpt || { | |
| 147 | style: 'DEFAULT', | |
| 148 | position: 'TOP_LEFT' | |
| 149 | }, | |
| 150 | zoomControlStyle = zoomControlOpt.style || 'DEFAULT', | |
| 151 | zoomControlPosition = zoomControlOpt.position || 'TOP_LEFT', | |
| 152 | panControl = options.panControl || true, | |
| 153 | mapTypeControl = options.mapTypeControl || true, | |
| 154 | scaleControl = options.scaleControl || true, | |
| 155 | streetViewControl = options.streetViewControl || true, | |
| 156 | overviewMapControl = overviewMapControl || true, | |
| 157 | map_options = {}, | |
| 158 | map_base_options = { | |
| 159 | zoom: this.zoom, | |
| 160 | center: map_center, | |
| 161 | mapTypeId: mapType | |
| 162 | }, | |
| 163 | map_controls_options = { | |
| 164 | panControl: panControl, | |
| 165 | zoomControl: zoomControl, | |
| 166 | zoomControlOptions: { | |
| 167 | style: google.maps.ZoomControlStyle[zoomControlStyle], | |
| 168 | position: google.maps.ControlPosition[zoomControlPosition] | |
| 169 | }, | |
| 170 | mapTypeControl: mapTypeControl, | |
| 171 | scaleControl: scaleControl, | |
| 172 | streetViewControl: streetViewControl, | |
| 173 | overviewMapControl: overviewMapControl | |
| 174 | }; | |
| 175 | ||
| 176 | if (typeof(options.el) === 'string' || typeof(options.div) === 'string') { | |
| 177 | this.el = getElementById(container_id, options.context); | |
| 178 | } else { | |
| 179 | this.el = container_id; | |
| 180 | } | |
| 181 | ||
| 182 | if (typeof(this.el) === 'undefined' || this.el === null) { | |
| 183 | throw 'No element defined.'; | |
| 184 | } | |
| 185 | ||
| 186 | window.context_menu = window.context_menu || {}; | |
| 187 | window.context_menu[self.el.id] = {}; | |
| 188 | ||
| 189 | this.controls = []; | |
| 190 | this.overlays = []; | |
| 191 | this.layers = []; // array with kml/georss and fusiontables layers, can be as many | |
| 192 | this.singleLayers = {}; // object with the other layers, only one per layer | |
| 193 | this.markers = []; | |
| 194 | this.polylines = []; | |
| 195 | this.routes = []; | |
| 196 | this.polygons = []; | |
| 197 | this.infoWindow = null; | |
| 198 | this.overlay_el = null; | |
| 199 | this.zoom = options.zoom; | |
| 200 | this.registered_events = {}; | |
| 201 | ||
| 202 | this.el.style.width = options.width || this.el.scrollWidth || this.el.offsetWidth; | |
| 203 | this.el.style.height = options.height || this.el.scrollHeight || this.el.offsetHeight; | |
| 204 | ||
| 205 | google.maps.visualRefresh = options.enableNewStyle; | |
| 206 | ||
| 207 | for (i = 0; i < options_to_be_deleted.length; i++) { | |
| 208 | delete options[options_to_be_deleted[i]]; | |
| 209 | } | |
| 210 | ||
| 211 | if(options.disableDefaultUI != true) { | |
| 212 | map_base_options = extend_object(map_base_options, map_controls_options); | |
| 213 | } | |
| 214 | ||
| 215 | map_options = extend_object(map_base_options, options); | |
| 216 | ||
| 217 | for (i = 0; i < events_that_hide_context_menu.length; i++) { | |
| 218 | delete map_options[events_that_hide_context_menu[i]]; | |
| 219 | } | |
| 220 | ||
| 221 | for (i = 0; i < events_that_doesnt_hide_context_menu.length; i++) { | |
| 222 | delete map_options[events_that_doesnt_hide_context_menu[i]]; | |
| 223 | } | |
| 224 | ||
| 225 | this.map = new google.maps.Map(this.el, map_options); | |
| 226 | ||
| 227 | if (markerClustererFunction) { | |
| 228 | this.markerClusterer = markerClustererFunction.apply(this, [this.map]); | |
| 229 | } | |
| 230 | ||
| 231 | var buildContextMenuHTML = function(control, e) { | |
| 232 | var html = '', | |
| 233 | options = window.context_menu[self.el.id][control]; | |
| 234 | ||
| 235 | for (var i in options){ | |
| 236 | if (options.hasOwnProperty(i)) { | |
| 237 | var option = options[i]; | |
| 238 | ||
| 239 | html += '<li><a id="' + control + '_' + i + '" href="#">' + option.title + '</a></li>'; | |
| 240 | } | |
| 241 | } | |
| 242 | ||
| 243 | if (!getElementById('gmaps_context_menu')) return; | |
| 244 | ||
| 245 | var context_menu_element = getElementById('gmaps_context_menu'); | |
| 246 | ||
| 247 | context_menu_element.innerHTML = html; | |
| 248 | ||
| 249 | var context_menu_items = context_menu_element.getElementsByTagName('a'), | |
| 250 | context_menu_items_count = context_menu_items.length | |
| 251 | i; | |
| 252 | ||
| 253 | for (i = 0; i < context_menu_items_count; i++) { | |
| 254 | var context_menu_item = context_menu_items[i]; | |
| 255 | ||
| 256 | var assign_menu_item_action = function(ev){ | |
| 257 | ev.preventDefault(); | |
| 258 | ||
| 259 | options[this.id.replace(control + '_', '')].action.apply(self, [e]); | |
| 260 | self.hideContextMenu(); | |
| 261 | }; | |
| 262 | ||
| 263 | google.maps.event.clearListeners(context_menu_item, 'click'); | |
| 264 | google.maps.event.addDomListenerOnce(context_menu_item, 'click', assign_menu_item_action, false); | |
| 265 | } | |
| 266 | ||
| 267 | var position = findAbsolutePosition.apply(this, [self.el]), | |
| 268 | left = position[0] + e.pixel.x - 15, | |
| 269 | top = position[1] + e.pixel.y- 15; | |
| 270 | ||
| 271 | context_menu_element.style.left = left + "px"; | |
| 272 | context_menu_element.style.top = top + "px"; | |
| 273 | ||
| 274 | context_menu_element.style.display = 'block'; | |
| 275 | }; | |
| 276 | ||
| 277 | this.buildContextMenu = function(control, e) { | |
| 278 | if (control === 'marker') { | |
| 279 | e.pixel = {}; | |
| 280 | ||
| 281 | var overlay = new google.maps.OverlayView(); | |
| 282 | overlay.setMap(self.map); | |
| 283 | ||
| 284 | overlay.draw = function() { | |
| 285 | var projection = overlay.getProjection(), | |
| 286 | position = e.marker.getPosition(); | |
| 287 | ||
| 288 | e.pixel = projection.fromLatLngToContainerPixel(position); | |
| 289 | ||
| 290 | buildContextMenuHTML(control, e); | |
| 291 | }; | |
| 292 | } | |
| 293 | else { | |
| 294 | buildContextMenuHTML(control, e); | |
| 295 | } | |
| 296 | }; | |
| 297 | ||
| 298 | this.setContextMenu = function(options) { | |
| 299 | window.context_menu[self.el.id][options.control] = {}; | |
| 300 | ||
| 301 | var i, | |
| 302 | ul = doc.createElement('ul'); | |
| 303 | ||
| 304 | for (i in options.options) { | |
| 305 | if (options.options.hasOwnProperty(i)) { | |
| 306 | var option = options.options[i]; | |
| 307 | ||
| 308 | window.context_menu[self.el.id][options.control][option.name] = { | |
| 309 | title: option.title, | |
| 310 | action: option.action | |
| 311 | }; | |
| 312 | } | |
| 313 | } | |
| 314 | ||
| 315 | ul.id = 'gmaps_context_menu'; | |
| 316 | ul.style.display = 'none'; | |
| 317 | ul.style.position = 'absolute'; | |
| 318 | ul.style.minWidth = '100px'; | |
| 319 | ul.style.background = 'white'; | |
| 320 | ul.style.listStyle = 'none'; | |
| 321 | ul.style.padding = '8px'; | |
| 322 | ul.style.boxShadow = '2px 2px 6px #ccc'; | |
| 323 | ||
| 324 | doc.body.appendChild(ul); | |
| 325 | ||
| 326 | var context_menu_element = getElementById('gmaps_context_menu') | |
| 327 | ||
| 328 | google.maps.event.addDomListener(context_menu_element, 'mouseout', function(ev) { | |
| 329 | if (!ev.relatedTarget || !this.contains(ev.relatedTarget)) { | |
| 330 | window.setTimeout(function(){ | |
| 331 | context_menu_element.style.display = 'none'; | |
| 332 | }, 400); | |
| 333 | } | |
| 334 | }, false); | |
| 335 | }; | |
| 336 | ||
| 337 | this.hideContextMenu = function() { | |
| 338 | var context_menu_element = getElementById('gmaps_context_menu'); | |
| 339 | ||
| 340 | if (context_menu_element) { | |
| 341 | context_menu_element.style.display = 'none'; | |
| 342 | } | |
| 343 | }; | |
| 344 | ||
| 345 | var setupListener = function(object, name) { | |
| 346 | google.maps.event.addListener(object, name, function(e){ | |
| 347 | if (e == undefined) { | |
| 348 | e = this; | |
| 349 | } | |
| 350 | ||
| 351 | options[name].apply(this, [e]); | |
| 352 | ||
| 353 | self.hideContextMenu(); | |
| 354 | }); | |
| 355 | }; | |
| 356 | ||
| 357 | for (var ev = 0; ev < events_that_hide_context_menu.length; ev++) { | |
| 358 | var name = events_that_hide_context_menu[ev]; | |
| 359 | ||
| 360 | if (name in options) { | |
| 361 | setupListener(this.map, name); | |
| 362 | } | |
| 363 | } | |
| 364 | ||
| 365 | for (var ev = 0; ev < events_that_doesnt_hide_context_menu.length; ev++) { | |
| 366 | var name = events_that_doesnt_hide_context_menu[ev]; | |
| 367 | ||
| 368 | if (name in options) { | |
| 369 | setupListener(this.map, name); | |
| 370 | } | |
| 371 | } | |
| 372 | ||
| 373 | google.maps.event.addListener(this.map, 'rightclick', function(e) { | |
| 374 | if (options.rightclick) { | |
| 375 | options.rightclick.apply(this, [e]); | |
| 376 | } | |
| 377 | ||
| 378 | if(window.context_menu[self.el.id]['map'] != undefined) { | |
| 379 | self.buildContextMenu('map', e); | |
| 380 | } | |
| 381 | }); | |
| 382 | ||
| 383 | this.refresh = function() { | |
| 384 | google.maps.event.trigger(this.map, 'resize'); | |
| 385 | }; | |
| 386 | ||
| 387 | this.fitZoom = function() { | |
| 388 | var latLngs = [], | |
| 389 | markers_length = this.markers.length, | |
| 390 | i; | |
| 391 | ||
| 392 | for (i = 0; i < markers_length; i++) { | |
| 393 | latLngs.push(this.markers[i].getPosition()); | |
| 394 | } | |
| 395 | ||
| 396 | this.fitLatLngBounds(latLngs); | |
| 397 | }; | |
| 398 | ||
| 399 | this.fitLatLngBounds = function(latLngs) { | |
| 400 | var total = latLngs.length; | |
| 401 | var bounds = new google.maps.LatLngBounds(); | |
| 402 | ||
| 403 | for(var i=0; i < total; i++) { | |
| 404 | bounds.extend(latLngs[i]); | |
| 405 | } | |
| 406 | ||
| 407 | this.map.fitBounds(bounds); | |
| 408 | }; | |
| 409 | ||
| 410 | this.setCenter = function(lat, lng, callback) { | |
| 411 | this.map.panTo(new google.maps.LatLng(lat, lng)); | |
| 412 | ||
| 413 | if (callback) { | |
| 414 | callback(); | |
| 415 | } | |
| 416 | }; | |
| 417 | ||
| 418 | this.getElement = function() { | |
| 419 | return this.el; | |
| 420 | }; | |
| 421 | ||
| 422 | this.zoomIn = function(value) { | |
| 423 | value = value || 1; | |
| 424 | ||
| 425 | this.zoom = this.map.getZoom() + value; | |
| 426 | this.map.setZoom(this.zoom); | |
| 427 | }; | |
| 428 | ||
| 429 | this.zoomOut = function(value) { | |
| 430 | value = value || 1; | |
| 431 | ||
| 432 | this.zoom = this.map.getZoom() - value; | |
| 433 | this.map.setZoom(this.zoom); | |
| 434 | }; | |
| 435 | ||
| 436 | var native_methods = [], | |
| 437 | method; | |
| 438 | ||
| 439 | for (method in this.map) { | |
| 440 | if (typeof(this.map[method]) == 'function' && !this[method]) { | |
| 441 | native_methods.push(method); | |
| 442 | } | |
| 443 | } | |
| 444 | ||
| 445 | for (i=0; i < native_methods.length; i++) { | |
| 446 | (function(gmaps, scope, method_name) { | |
| 447 | gmaps[method_name] = function(){ | |
| 448 | return scope[method_name].apply(scope, arguments); | |
| 449 | }; | |
| 450 | })(this, this.map, native_methods[i]); | |
| 451 | } | |
| 452 | }; | |
| 453 | ||
| 454 | return GMaps; | |
| 455 | })(this); | |
