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The Simplest AngularJS Google Maps V3 Directive
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source : places-auto-complete.js
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<pre class="prettyprint source linenums"><code>/**
* @ngdoc directive
* @name places-auto-complete
* @param Attr2MapOptions {service} convert html attribute to Google map api options
* @description
* Provides address auto complete feature to an input element
* Requires: input tag
* Restrict To: Attribute
*
* @attr {AutoCompleteOptions}
* [Any AutocompleteOptions](https://developers.google.com/maps/documentation/javascript/3.exp/reference#AutocompleteOptions)
*
* @example
* Example:
* <script src="https://maps.googleapis.com/maps/api/js?libraries=places"></script>
* <input places-auto-complete types="['geocode']" on-place-changed="myCallback(place)" component-restrictions="{country:'au'}"/>
*
*/
/* global google */
(function() {
'use strict';
var placesAutoComplete = function(Attr2MapOptions, $timeout) {
var parser = Attr2MapOptions;
var linkFunc = function(scope, element, attrs, ngModelCtrl) {
if (attrs.placesAutoComplete ==='false') {
return false;
}
var filtered = parser.filter(attrs);
var options = parser.getOptions(filtered, {scope: scope});
var events = parser.getEvents(scope, filtered);
var autocomplete = new google.maps.places.Autocomplete(element[0], options);
autocomplete.setOptions({strictBounds: options.strictBounds === true});
for (var eventName in events) {
google.maps.event.addListener(autocomplete, eventName, events[eventName]);
}
var updateModel = function() {
$timeout(function(){
ngModelCtrl && ngModelCtrl.$setViewValue(element.val());
},100);
};
google.maps.event.addListener(autocomplete, 'place_changed', updateModel);
element[0].addEventListener('change', updateModel);
attrs.$observe('rectBounds', function(val) {
if (val) {
var bounds = parser.toOptionValue(val, {key: 'rectBounds'});
autocomplete.setBounds(new google.maps.LatLngBounds(
new google.maps.LatLng(bounds.south_west.lat, bounds.south_west.lng),
new google.maps.LatLng(bounds.north_east.lat, bounds.north_east.lng)));
}
});
attrs.$observe('circleBounds', function(val) {
if (val) {
var bounds = parser.toOptionValue(val, {key: 'circleBounds'});
var circle = new google.maps.Circle(bounds);
autocomplete.setBounds(circle.getBounds());
}
});
attrs.$observe('types', function(val) {
if (val) {
var optionValue = parser.toOptionValue(val, {key: 'types'});
autocomplete.setTypes(optionValue);
}
});
attrs.$observe('componentRestrictions', function (val) {
if (val) {
autocomplete.setComponentRestrictions(scope.$eval(val));
}
});
};
return {
restrict: 'A',
require: '?ngModel',
link: linkFunc
};
};
placesAutoComplete.$inject = ['Attr2MapOptions', '$timeout'];
angular.module('ngMap').directive('placesAutoComplete', placesAutoComplete);
})();
</code></pre>
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