ngmap
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The Simplest AngularJS Google Maps V3 Directive
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source : marker.js
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<pre class="prettyprint source linenums"><code>/**
* @ngdoc directive
* @name marker
* @param Attr2Options {service} convert html attribute to Google map api options
* @param NavigatorGeolocation It is used to find the current location
* @description
* Draw a Google map marker on a map with given options and register events
*
* Requires: map directive
*
* Restrict To: Element
*
* @attr {String} position address, 'current', or [latitude, longitude]
* example:
* '1600 Pennsylvania Ave, 20500 Washingtion DC',
* 'current position',
* '[40.74, -74.18]'
* @attr {Boolean} centered if set, map will be centered with this marker
* @attr {Expression} geo-callback if position is an address,
* the expression is will be performed when geo-lookup is successful.
* e.g., geo-callback="showStoreInfo()"
* @attr {Boolean} no-watcher if true, no attribute observer is added.
* Useful for many ng-repeat
* @attr {String} <MarkerOption>
* [Any Marker options](https://developers.google.com/maps/documentation/javascript/reference?csw=1#MarkerOptions)
* @attr {String} <MapEvent>
* [Any Marker events](https://developers.google.com/maps/documentation/javascript/reference)
* @example
* Usage:
* <map MAP_ATTRIBUTES>
* <marker ANY_MARKER_OPTIONS ANY_MARKER_EVENTS"></MARKER>
* </map>
*
* Example:
* <map center="[40.74, -74.18]">
* <marker position="[40.74, -74.18]" on-click="myfunc()"></div>
* </map>
*
* <map center="the cn tower">
* <marker position="the cn tower" on-click="myfunc()"></div>
* </map>
*/
/* global google */
(function() {
'use strict';
var parser, $parse, NgMap;
var getMarker = function(options, events) {
var marker;
if (NgMap.defaultOptions.marker) {
for (var key in NgMap.defaultOptions.marker) {
if (typeof options[key] == 'undefined') {
console.log('setting default marker options',
key, NgMap.defaultOptions.marker);
options[key] = NgMap.defaultOptions.marker[key];
}
}
}
if (!(options.position instanceof google.maps.LatLng)) {
options.position = new google.maps.LatLng(0,0);
}
marker = new google.maps.Marker(options);
/**
* set events
*/
if (Object.keys(events).length > 0) {
console.log("markerEvents", events);
}
for (var eventName in events) {
if (eventName) {
google.maps.event.addListener(marker, eventName, events[eventName]);
}
}
return marker;
};
var linkFunc = function(scope, element, attrs, mapController) {
mapController = mapController[0]||mapController[1];
var orgAttrs = parser.orgAttributes(element);
var filtered = parser.filter(attrs);
var markerOptions = parser.getOptions(filtered, scope, {scope: scope});
var markerEvents = parser.getEvents(scope, filtered);
console.log('marker options', markerOptions, 'events', markerEvents);
var address;
if (!(markerOptions.position instanceof google.maps.LatLng)) {
address = markerOptions.position;
}
var marker = getMarker(markerOptions, markerEvents);
mapController.addObject('markers', marker);
if (address) {
NgMap.getGeoLocation(address).then(function(latlng) {
marker.setPosition(latlng);
markerOptions.centered && marker.map.setCenter(latlng);
var geoCallback = attrs.geoCallback;
geoCallback && $parse(geoCallback)(scope);
});
}
//set observers
mapController.observeAttrSetObj(orgAttrs, attrs, marker); /* observers */
element.bind('$destroy', function() {
mapController.deleteObject('markers', marker);
});
};
var marker = function(Attr2MapOptions, _$parse_, _NgMap_) {
parser = Attr2MapOptions;
$parse = _$parse_;
NgMap = _NgMap_;
return {
restrict: 'E',
require: ['^?map','?^ngMap'],
link: linkFunc
};
};
marker.$inject = ['Attr2MapOptions', '$parse', 'NgMap'];
angular.module('ngMap').directive('marker', marker);
})();
</code></pre>
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