ngmap
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The Simplest AngularJS Google Maps V3 Directive
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source : shape.js
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<pre class="prettyprint source linenums"><code>/**
* @ngdoc directive
* @name shape
* @param Attr2MapOptions {service} convert html attribute to Google map api options
* @description
* Initialize a Google map shape in map with given options and register events
* The shapes are:
* . circle
* . polygon
* . polyline
* . rectangle
* . groundOverlay(or image)
*
* Requires: map directive
*
* Restrict To: Element
*
* @attr {Boolean} centered if set, map will be centered with this marker
* @attr {Expression} geo-callback if shape is a circle and the center is
* an address, the expression is will be performed when geo-lookup
* is successful. e.g., geo-callback="showDetail()"
* @attr {String} <OPTIONS>
* For circle, [any circle options](https://developers.google.com/maps/documentation/javascript/reference#CircleOptions)
* For polygon, [any polygon options](https://developers.google.com/maps/documentation/javascript/reference#PolygonOptions)
* For polyline, [any polyline options](https://developers.google.com/maps/documentation/javascript/reference#PolylineOptions)
* For rectangle, [any rectangle options](https://developers.google.com/maps/documentation/javascript/reference#RectangleOptions)
* For image, [any groundOverlay options](https://developers.google.com/maps/documentation/javascript/reference#GroundOverlayOptions)
* @attr {String} <MapEvent> [Any Shape events](https://developers.google.com/maps/documentation/javascript/reference)
* @example
* Usage:
* <map MAP_ATTRIBUTES>
* <shape name="SHAPE_NAME ANY_SHAPE_OPTIONS ANY_SHAPE_EVENTS"></shape>
* </map>
*
* Example:
*
* <map zoom="11" center="[40.74, -74.18]">
* <shape id="polyline" name="polyline" geodesic="true"
* stroke-color="#FF0000" stroke-opacity="1.0" stroke-weight="2"
* path="[[40.74,-74.18],[40.64,-74.10],[40.54,-74.05],[40.44,-74]]" >
* </shape>
* </map>
*
* <map zoom="11" center="[40.74, -74.18]">
* <shape id="polygon" name="polygon" stroke-color="#FF0000"
* stroke-opacity="1.0" stroke-weight="2"
* paths="[[40.74,-74.18],[40.64,-74.18],[40.84,-74.08],[40.74,-74.18]]" >
* </shape>
* </map>
*
* <map zoom="11" center="[40.74, -74.18]">
* <shape id="rectangle" name="rectangle" stroke-color='#FF0000'
* stroke-opacity="0.8" stroke-weight="2"
* bounds="[[40.74,-74.18], [40.78,-74.14]]" editable="true" >
* </shape>
* </map>
*
* <map zoom="11" center="[40.74, -74.18]">
* <shape id="circle" name="circle" stroke-color='#FF0000'
* stroke-opacity="0.8"stroke-weight="2"
* center="[40.70,-74.14]" radius="4000" editable="true" >
* </shape>
* </map>
*
* <map zoom="11" center="[40.74, -74.18]">
* <shape id="image" name="image"
* url="https://www.lib.utexas.edu/maps/historical/newark_nj_1922.jpg"
* bounds="[[40.71,-74.22],[40.77,-74.12]]" opacity="0.7"
* clickable="true">
* </shape>
* </map>
*
* For full-working example, please visit
* [shape example](https://rawgit.com/allenhwkim/angularjs-google-maps/master/build/shape.html)
*/
/* global google */
(function() {
'use strict';
var getShape = function(options, events) {
var shape;
var shapeName = options.name;
delete options.name; //remove name bcoz it's not for options
console.log("shape", shapeName, "options", options, 'events', events);
/**
* set options
*/
switch(shapeName) {
case "circle":
if (!(options.center instanceof google.maps.LatLng)) {
options.center = new google.maps.LatLng(0,0);
}
shape = new google.maps.Circle(options);
break;
case "polygon":
shape = new google.maps.Polygon(options);
break;
case "polyline":
shape = new google.maps.Polyline(options);
break;
case "rectangle":
shape = new google.maps.Rectangle(options);
break;
case "groundOverlay":
case "image":
var url = options.url;
var opts = {opacity: options.opacity, clickable: options.clickable, id:options.id};
shape = new google.maps.GroundOverlay(url, options.bounds, opts);
break;
}
/**
* set events
*/
for (var eventName in events) {
if (events[eventName]) {
google.maps.event.addListener(shape, eventName, events[eventName]);
}
}
return shape;
};
var shape = function(Attr2MapOptions, $parse, NgMap) {
var parser = Attr2MapOptions;
var linkFunc = function(scope, element, attrs, mapController) {
mapController = mapController[0]||mapController[1];
var orgAttrs = parser.orgAttributes(element);
var filtered = parser.filter(attrs);
var shapeOptions = parser.getOptions(filtered, {scope: scope});
var shapeEvents = parser.getEvents(scope, filtered);
var address, shapeType;
shapeType = shapeOptions.name;
if (!(shapeOptions.center instanceof google.maps.LatLng)) {
address = shapeOptions.center;
}
var shape = getShape(shapeOptions, shapeEvents);
mapController.addObject('shapes', shape);
if (address && shapeType == 'circle') {
NgMap.getGeoLocation(address).then(function(latlng) {
shape.setCenter(latlng);
shape.centered && shape.map.setCenter(latlng);
var geoCallback = attrs.geoCallback;
geoCallback && $parse(geoCallback)(scope);
});
}
//set observers
mapController.observeAttrSetObj(orgAttrs, attrs, shape);
element.bind('$destroy', function() {
mapController.deleteObject('shapes', shape);
});
};
return {
restrict: 'E',
require: ['?^map','?^ngMap'],
link: linkFunc
}; // return
};
shape.$inject = ['Attr2MapOptions', '$parse', 'NgMap'];
angular.module('ngMap').directive('shape', shape);
})();
</code></pre>
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