var extend_object = function(obj, new_obj) {
var name;
if (obj === new_obj) {
return obj;
}
for (name in new_obj) {
if (new_obj[name] !== undefined) {
obj[name] = new_obj[name];
}
}
return obj;
};
var replace_object = function(obj, replace) {
var name;
if (obj === replace) {
return obj;
}
for (name in replace) {
if (obj[name] != undefined) {
obj[name] = replace[name];
}
}
return obj;
};
var array_map = function(array, callback) {
var original_callback_params = Array.prototype.slice.call(arguments, 2),
array_return = [],
array_length = array.length,
i;
if (Array.prototype.map && array.map === Array.prototype.map) {
array_return = Array.prototype.map.call(array, function(item) {
var callback_params = original_callback_params.slice(0);
callback_params.splice(0, 0, item);
return callback.apply(this, callback_params);
});
}
else {
for (i = 0; i < array_length; i++) {
callback_params = original_callback_params;
callback_params.splice(0, 0, array[i]);
array_return.push(callback.apply(this, callback_params));
}
}
return array_return;
};
var array_flat = function(array) {
var new_array = [],
i;
for (i = 0; i < array.length; i++) {
new_array = new_array.concat(array[i]);
}
return new_array;
};
var coordsToLatLngs = function(coords, useGeoJSON) {
var first_coord = coords[0],
second_coord = coords[1];
if (useGeoJSON) {
first_coord = coords[1];
second_coord = coords[0];
}
return new google.maps.LatLng(first_coord, second_coord);
};
var arrayToLatLng = function(coords, useGeoJSON) {
var i;
for (i = 0; i < coords.length; i++) {
if (!(coords[i] instanceof google.maps.LatLng)) {
if (coords[i].length > 0 && typeof(coords[i][0]) === "object") {
coords[i] = arrayToLatLng(coords[i], useGeoJSON);
}
else {
coords[i] = coordsToLatLngs(coords[i], useGeoJSON);
}
}
}
return coords;
};
var getElementsByClassName = function (class_name, context) {
var element,
_class = class_name.replace('.', '');
if ('jQuery' in this && context) {
element = $("." + _class, context)[0];
} else {
element = document.getElementsByClassName(_class)[0];
}
return element;
};
var getElementById = function(id, context) {
var element,
id = id.replace('#', '');
if ('jQuery' in window && context) {
element = $('#' + id, context)[0];
} else {
element = document.getElementById(id);
};
return element;
};
var findAbsolutePosition = function(obj) {
var curleft = 0,
curtop = 0;
if (obj.offsetParent) {
do {
curleft += obj.offsetLeft;
curtop += obj.offsetTop;
} while (obj = obj.offsetParent);
}
return [curleft, curtop];
};
var GMaps = (function(global) {
"use strict";
var doc = document;
/**
* Creates a new GMaps instance, including a Google Maps map.
* @class GMaps
* @constructs
* @param {object} options - `options` accepts all the [MapOptions](https://developers.google.com/maps/documentation/javascript/reference#MapOptions) and [events](https://developers.google.com/maps/documentation/javascript/reference#Map) listed in the Google Maps API. Also accepts:
* * `lat` (number): Latitude of the map's center
* * `lng` (number): Longitude of the map's center
* * `el` (string or HTMLElement): container where the map will be rendered
* * `markerClusterer` (function): A function to create a marker cluster. You can use MarkerClusterer or MarkerClustererPlus.
*/
var GMaps = function(options) {
if (!(typeof window.google === 'object' && window.google.maps)) {
if (typeof window.console === 'object' && window.console.error) {
console.error('Google Maps API is required. Please register the following JavaScript library https://maps.googleapis.com/maps/api/js.');
}
return function() {};
}
if (!this) return new GMaps(options);
options.zoom = options.zoom || 15;
options.mapType = options.mapType || 'roadmap';
var valueOrDefault = function(value, defaultValue) {
return value === undefined ? defaultValue : value;
};
var self = this,
i,
events_that_hide_context_menu = [
'bounds_changed', 'center_changed', 'click', 'dblclick', 'drag',
'dragend', 'dragstart', 'idle', 'maptypeid_changed', 'projection_changed',
'resize', 'tilesloaded', 'zoom_changed'
],
events_that_doesnt_hide_context_menu = ['mousemove', 'mouseout', 'mouseover'],
options_to_be_deleted = ['el', 'lat', 'lng', 'mapType', 'width', 'height', 'markerClusterer', 'enableNewStyle'],
identifier = options.el || options.div,
markerClustererFunction = options.markerClusterer,
mapType = google.maps.MapTypeId[options.mapType.toUpperCase()],
map_center = new google.maps.LatLng(options.lat, options.lng),
zoomControl = valueOrDefault(options.zoomControl, true),
zoomControlOpt = options.zoomControlOpt || {
style: 'DEFAULT',
position: 'TOP_LEFT'
},
zoomControlStyle = zoomControlOpt.style || 'DEFAULT',
zoomControlPosition = zoomControlOpt.position || 'TOP_LEFT',
panControl = valueOrDefault(options.panControl, true),
mapTypeControl = valueOrDefault(options.mapTypeControl, true),
scaleControl = valueOrDefault(options.scaleControl, true),
streetViewControl = valueOrDefault(options.streetViewControl, true),
overviewMapControl = valueOrDefault(overviewMapControl, true),
map_options = {},
map_base_options = {
zoom: this.zoom,
center: map_center,
mapTypeId: mapType
},
map_controls_options = {
panControl: panControl,
zoomControl: zoomControl,
zoomControlOptions: {
style: google.maps.ZoomControlStyle[zoomControlStyle],
position: google.maps.ControlPosition[zoomControlPosition]
},
mapTypeControl: mapTypeControl,
scaleControl: scaleControl,
streetViewControl: streetViewControl,
overviewMapControl: overviewMapControl
};
if (typeof(options.el) === 'string' || typeof(options.div) === 'string') {
if (identifier.indexOf("#") > -1) {
/**
* Container element
*
* @type {HTMLElement}
*/
this.el = getElementById(identifier, options.context);
} else {
this.el = getElementsByClassName.apply(this, [identifier, options.context]);
}
} else {
this.el = identifier;
}
if (typeof(this.el) === 'undefined' || this.el === null) {
throw 'No element defined.';
}
window.context_menu = window.context_menu || {};
window.context_menu[self.el.id] = {};
/**
* Collection of custom controls in the map UI
*
* @type {array}
*/
this.controls = [];
/**
* Collection of map's overlays
*
* @type {array}
*/
this.overlays = [];
/**
* Collection of KML/GeoRSS and FusionTable layers
*
* @type {array}
*/
this.layers = [];
/**
* Collection of data layers (See {@link GMaps#addLayer})
*
* @type {object}
*/
this.singleLayers = {};
/**
* Collection of map's markers
*
* @type {array}
*/
this.markers = [];
/**
* Collection of map's lines
*
* @type {array}
*/
this.polylines = [];
/**
* Collection of map's routes requested by {@link GMaps#getRoutes}, {@link GMaps#renderRoute}, {@link GMaps#drawRoute}, {@link GMaps#travelRoute} or {@link GMaps#drawSteppedRoute}
*
* @type {array}
*/
this.routes = [];
/**
* Collection of map's polygons
*
* @type {array}
*/
this.polygons = [];
this.infoWindow = null;
this.overlay_el = null;
/**
* Current map's zoom
*
* @type {number}
*/
this.zoom = options.zoom;
this.registered_events = {};
this.el.style.width = options.width || this.el.scrollWidth || this.el.offsetWidth;
this.el.style.height = options.height || this.el.scrollHeight || this.el.offsetHeight;
google.maps.visualRefresh = options.enableNewStyle;
for (i = 0; i < options_to_be_deleted.length; i++) {
delete options[options_to_be_deleted[i]];
}
if(options.disableDefaultUI != true) {
map_base_options = extend_object(map_base_options, map_controls_options);
}
map_options = extend_object(map_base_options, options);
for (i = 0; i < events_that_hide_context_menu.length; i++) {
delete map_options[events_that_hide_context_menu[i]];
}
for (i = 0; i < events_that_doesnt_hide_context_menu.length; i++) {
delete map_options[events_that_doesnt_hide_context_menu[i]];
}
/**
* Google Maps map instance
*
* @type {google.maps.Map}
*/
this.map = new google.maps.Map(this.el, map_options);
if (markerClustererFunction) {
/**
* Marker Clusterer instance
*
* @type {object}
*/
this.markerClusterer = markerClustererFunction.apply(this, [this.map]);
}
var buildContextMenuHTML = function(control, e) {
var html = '',
options = window.context_menu[self.el.id][control];
for (var i in options){
if (options.hasOwnProperty(i)) {
var option = options[i];
html += '<li><a id="' + control + '_' + i + '" href="#">' + option.title + '</a></li>';
}
}
if (!getElementById('gmaps_context_menu')) return;
var context_menu_element = getElementById('gmaps_context_menu');
context_menu_element.innerHTML = html;
var context_menu_items = context_menu_element.getElementsByTagName('a'),
context_menu_items_count = context_menu_items.length,
i;
for (i = 0; i < context_menu_items_count; i++) {
var context_menu_item = context_menu_items[i];
var assign_menu_item_action = function(ev){
ev.preventDefault();
options[this.id.replace(control + '_', '')].action.apply(self, [e]);
self.hideContextMenu();
};
google.maps.event.clearListeners(context_menu_item, 'click');
google.maps.event.addDomListenerOnce(context_menu_item, 'click', assign_menu_item_action, false);
}
var position = findAbsolutePosition.apply(this, [self.el]),
left = position[0] + e.pixel.x - 15,
top = position[1] + e.pixel.y- 15;
context_menu_element.style.left = left + "px";
context_menu_element.style.top = top + "px";
// context_menu_element.style.display = 'block';
};
this.buildContextMenu = function(control, e) {
if (control === 'marker') {
e.pixel = {};
var overlay = new google.maps.OverlayView();
overlay.setMap(self.map);
overlay.draw = function() {
var projection = overlay.getProjection(),
position = e.marker.getPosition();
e.pixel = projection.fromLatLngToContainerPixel(position);
buildContextMenuHTML(control, e);
};
}
else {
buildContextMenuHTML(control, e);
}
var context_menu_element = getElementById('gmaps_context_menu');
setTimeout(function() {
context_menu_element.style.display = 'block';
}, 0);
};
/**
* Add a context menu for a map or a marker.
*
* @param {object} options - The `options` object should contain:
* * `control` (string): Kind of control the context menu will be attached. Can be "map" or "marker".
* * `options` (array): A collection of context menu items:
* * `title` (string): Item's title shown in the context menu.
* * `name` (string): Item's identifier.
* * `action` (function): Function triggered after selecting the context menu item.
*/
this.setContextMenu = function(options) {
window.context_menu[self.el.id][options.control] = {};
var i,
ul = doc.createElement('ul');
for (i in options.options) {
if (options.options.hasOwnProperty(i)) {
var option = options.options[i];
window.context_menu[self.el.id][options.control][option.name] = {
title: option.title,
action: option.action
};
}
}
ul.id = 'gmaps_context_menu';
ul.style.display = 'none';
ul.style.position = 'absolute';
ul.style.minWidth = '100px';
ul.style.background = 'white';
ul.style.listStyle = 'none';
ul.style.padding = '8px';
ul.style.boxShadow = '2px 2px 6px #ccc';
if (!getElementById('gmaps_context_menu')) {
doc.body.appendChild(ul);
}
var context_menu_element = getElementById('gmaps_context_menu');
google.maps.event.addDomListener(context_menu_element, 'mouseout', function(ev) {
if (!ev.relatedTarget || !this.contains(ev.relatedTarget)) {
window.setTimeout(function(){
context_menu_element.style.display = 'none';
}, 400);
}
}, false);
};
/**
* Hide the current context menu
*/
this.hideContextMenu = function() {
var context_menu_element = getElementById('gmaps_context_menu');
if (context_menu_element) {
context_menu_element.style.display = 'none';
}
};
var setupListener = function(object, name) {
google.maps.event.addListener(object, name, function(e){
if (e == undefined) {
e = this;
}
options[name].apply(this, [e]);
self.hideContextMenu();
});
};
//google.maps.event.addListener(this.map, 'idle', this.hideContextMenu);
google.maps.event.addListener(this.map, 'zoom_changed', this.hideContextMenu);
for (var ev = 0; ev < events_that_hide_context_menu.length; ev++) {
var name = events_that_hide_context_menu[ev];
if (name in options) {
setupListener(this.map, name);
}
}
for (var ev = 0; ev < events_that_doesnt_hide_context_menu.length; ev++) {
var name = events_that_doesnt_hide_context_menu[ev];
if (name in options) {
setupListener(this.map, name);
}
}
google.maps.event.addListener(this.map, 'rightclick', function(e) {
if (options.rightclick) {
options.rightclick.apply(this, [e]);
}
if(window.context_menu[self.el.id]['map'] != undefined) {
self.buildContextMenu('map', e);
}
});
/**
* Trigger a `resize` event, useful if you need to repaint the current map (for changes in the viewport or display / hide actions).
*/
this.refresh = function() {
google.maps.event.trigger(this.map, 'resize');
};
/**
* Adjust the map zoom to include all the markers added in the map.
*/
this.fitZoom = function() {
var latLngs = [],
markers_length = this.markers.length,
i;
for (i = 0; i < markers_length; i++) {
if(typeof(this.markers[i].visible) === 'boolean' && this.markers[i].visible) {
latLngs.push(this.markers[i].getPosition());
}
}
this.fitLatLngBounds(latLngs);
};
/**
* Adjust the map zoom to include all the coordinates in the `latLngs` array.
*
* @param {array} latLngs - Collection of `google.maps.LatLng` objects.
*/
this.fitLatLngBounds = function(latLngs) {
var total = latLngs.length,
bounds = new google.maps.LatLngBounds(),
i;
for(i = 0; i < total; i++) {
bounds.extend(latLngs[i]);
}
this.map.fitBounds(bounds);
};
/**
* Center the map using the `lat` and `lng` coordinates.
*
* @param {number} lat - Latitude of the coordinate.
* @param {number} lng - Longitude of the coordinate.
* @param {function} [callback] - Callback that will be executed after the map is centered.
*/
this.setCenter = function(lat, lng, callback) {
this.map.panTo(new google.maps.LatLng(lat, lng));
if (callback) {
callback();
}
};
/**
* Return the HTML element container of the map.
*
* @returns {HTMLElement} the element container.
*/
this.getElement = function() {
return this.el;
};
/**
* Increase the map's zoom.
*
* @param {number} [magnitude] - The number of times the map will be zoomed in.
*/
this.zoomIn = function(value) {
value = value || 1;
this.zoom = this.map.getZoom() + value;
this.map.setZoom(this.zoom);
};
/**
* Decrease the map's zoom.
*
* @param {number} [magnitude] - The number of times the map will be zoomed out.
*/
this.zoomOut = function(value) {
value = value || 1;
this.zoom = this.map.getZoom() - value;
this.map.setZoom(this.zoom);
};
var native_methods = [],
method;
for (method in this.map) {
if (typeof(this.map[method]) == 'function' && !this[method]) {
native_methods.push(method);
}
}
for (i = 0; i < native_methods.length; i++) {
(function(gmaps, scope, method_name) {
gmaps[method_name] = function(){
return scope[method_name].apply(scope, arguments);
};
})(this, this.map, native_methods[i]);
}
};
return GMaps;
})(this);