73bcce88
 luigser
COMPONENTS
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
<!-- Copyright (c) 2015 Google Inc. All rights reserved. -->
<link rel="import" href="../polymer/polymer.html">
<link rel="import" href="../google-apis/google-maps-api.html">
<!--
Provides the Google Maps API Directions Service to provide directions
between a `startAddress` and `endAddress`.
See https://developers.google.com/maps/documentation/javascript/directions for more
information on the API.
#### Example:
<template is="dom-bind">
<google-map-directions map="{{map}}"
start-address="San Francisco"
end-address="Mountain View"
travel-mode="TRANSIT"
waypoints="[{location: 'Palo Alto'}, {location: 'San Mateo'}]"></google-map-directions>
<google-map map="{{map}}" latitude="37.779"
longitude="-122.3892"></google-map>
</template>
-->
<dom-module id="google-map-directions">
<style>
:host {
display: none;
}
</style>
<template>
<google-maps-api
api-key="[[apiKey]]"
libraries="[[libraries]]"
language="[[language]]"
on-api-load="_mapApiLoaded"></google-maps-api>
</template>
</dom-module>
<script>
Polymer({
is: 'google-map-directions',
/**
Fired whenever the directions service returns a result.
@event google-map-response
@param {Object} detail
@param {object} detail.response The directions service response.
*/
properties: {
/**
* A Maps API key. To obtain an API key, see developers.google.com/maps/documentation/javascript/tutorial#api_key.
*/
apiKey: String,
/**
* The Google map object.
*
* @type google.maps.Map
*/
map: {
type: Object,
observer: '_mapChanged'
},
/**
* Start address or latlng to get directions from.
*
* @type string|google.maps.LatLng
*/
startAddress: {
type: String,
value: null
},
/**
* End address or latlng for directions to end.
*
* @type string|google.maps.LatLng
*/
endAddress: {
type: String,
value: null
},
/**
* Travel mode to use. One of 'DRIVING', 'WALKING', 'BICYCLING', 'TRANSIT'.
*/
travelMode: {
type: String,
value: 'DRIVING'
},
/**
* Array of intermediate waypoints. Directions will be calculated
* from the origin to the destination by way of each waypoint in this array.
* The maximum allowed waypoints is 8, plus the origin, and destination.
* Maps API for Business customers are allowed 23 waypoints,
* plus the origin, and destination.
* Waypoints are not supported for transit directions. Optional.
*
* @type google.maps.DirectionsWaypoint
*/
waypoints: {
type: Array,
value: function() { return []; }
},
/**
* A comma separated list (e.g. "places,geometry") of libraries to load
* with this map. Defaults to "places". For more information see
* https://developers.google.com/maps/documentation/javascript/libraries.
*
* Note, this needs to be set to the same value as the one used on <google-map>.
* If you're overriding that element's `libraries` property, this one also
* needs to be set to the Maps API loads the library code.
*/
libraries: {
type: String,
value: 'places'
},
/**
* The localized language to load the Maps API with. For more information
* see https://developers.google.com/maps/documentation/javascript/basics#Language
*
* Note: the Maps API defaults to the preffered language setting of the browser.
* Use this parameter to override that behavior.
*/
language: {
type: String,
value: null
},
/**
* The response from the directions service.
*
*/
response: {
type: Object,
observer: '_responseChanged',
notify: true
}
},
observers: [
'_route(startAddress, endAddress, travelMode, waypoints)'
],
_mapApiLoaded: function() {
this._route();
},
_responseChanged: function() {
if (this.directionsRenderer && this.response) {
this.directionsRenderer.setDirections(this.response);
}
},
_mapChanged: function() {
if (this.map && this.map instanceof google.maps.Map) {
if (!this.directionsRenderer) {
this.directionsRenderer = new google.maps.DirectionsRenderer();
}
this.directionsRenderer.setMap(this.map);
this._responseChanged();
} else {
// If there is no more map, remove the directionsRenderer from the map and delete it.
if (this.directionsRenderer) {
this.directionsRenderer.setMap(null);
this.directionsRenderer = null;
}
}
},
_route: function() {
// Abort attempts to _route if the API is not available yet or the
// required attributes are blank.
if (typeof google == 'undefined' || typeof google.maps == 'undefined' ||
!this.startAddress || !this.endAddress) {
return;
}
// Construct a directionsService if necessary.
// Wait until here where the maps api has loaded and directions are actually needed.
if (!this.directionsService) {
this.directionsService = new google.maps.DirectionsService();
}
var request = {
origin: this.startAddress,
destination: this.endAddress,
travelMode: this.travelMode,
waypoints: this.waypoints
};
this.directionsService.route(request, function(response, status) {
if (status == google.maps.DirectionsStatus.OK) {
this.response = response;
this.fire('google-map-response', {response: response});
}
}.bind(this));
}
});
</script>
|
