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Merge pull request #173 from fredj/geolocation

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Add ol.Geolocation
This commit is contained in:
Frédéric Junod
2013-02-08 21:57:11 -08:00
parent 5f5e14f253 a36145fc1f
commit 03b10204a4
4 changed files with 190 additions and 0 deletions
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7
examples/full-screen.html
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@@ -21,6 +21,12 @@
padding: 0 0.5em 0.5em 0.5em;
border-radius: 4px;
}
#geolocation {
background-color: white;
border: 1px solid #222;
border-radius: 10px 10px 10px 0;
padding: 3px;
}
@media only screen and (max-width: 600px) {
#text {
display: none;
@@ -31,6 +37,7 @@
</head>
<body>
<div id="map">
<div id="geolocation" style="display: none">you are here</div>
<div id="text">
<h1 id="title">Full-screen example</h1>
<div id="shortdesc">Example of a full-screen map.</div>

14
examples/full-screen.js
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@@ -1,8 +1,11 @@
goog.require('goog.debug.Console');
goog.require('goog.debug.Logger');
goog.require('goog.debug.Logger.Level');
goog.require('goog.style');
goog.require('ol.AnchoredElement');
goog.require('ol.Collection');
goog.require('ol.Coordinate');
goog.require('ol.Geolocation');
goog.require('ol.Map');
goog.require('ol.RendererHints');
goog.require('ol.View2D');
@@ -28,3 +31,14 @@ var map = new ol.Map({
zoom: 0
})
});
var geolocation = new ol.Geolocation();
geolocation.bindTo('projection', map.getView());
var element = document.getElementById('geolocation');
var marker = new ol.AnchoredElement({
map: map,
element: element
});
marker.bindTo('position', geolocation);
goog.style.showElement(element, true);

1
src/ol/geolocation.exports Normal file
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@@ -0,0 +1 @@
@exportSymbol ol.Geolocation

168
src/ol/geolocation.js Normal file
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@@ -0,0 +1,168 @@
// FIXME handle geolocation not supported
// FIXME handle geolocation errors
goog.provide('ol.Geolocation');
goog.provide('ol.GeolocationProperty');
goog.require('goog.functions');
goog.require('ol.Coordinate');
goog.require('ol.Object');
goog.require('ol.Projection');
/**
* @enum {string}
*/
ol.GeolocationProperty = {
ACCURACY: 'accuracy',
POSITION: 'position',
PROJECTION: 'projection'
};
/**
* @constructor
* @extends {ol.Object}
* @param {GeolocationPositionOptions=} opt_positionOptions PositionOptions.
*/
ol.Geolocation = function(opt_positionOptions) {
goog.base(this);
/**
* The unprojected (EPSG:4326) device position.
* @private
* @type {ol.Coordinate}
*/
this.position_ = null;
if (ol.Geolocation.isSupported) {
goog.events.listen(
this, ol.Object.getChangedEventType(ol.GeolocationProperty.PROJECTION),
this.handleProjectionChanged_, false, this);
/**
* @private
* @type {number}
*/
this.watchId_ = navigator.geolocation.watchPosition(
goog.bind(this.positionChange_, this),
goog.bind(this.positionError_, this),
opt_positionOptions);
}
};
goog.inherits(ol.Geolocation, ol.Object);
/**
* @inheritDoc
*/
ol.Geolocation.prototype.disposeInternal = function() {
navigator.geolocation.clearWatch(this.watchId_);
goog.base(this, 'disposeInternal');
};
/**
* @private
*/
ol.Geolocation.prototype.handleProjectionChanged_ = function() {
var projection = this.getProjection();
if (goog.isDefAndNotNull(projection)) {
this.transformCoords_ = ol.Projection.getTransform(
ol.Projection.getFromCode('EPSG:4326'), projection);
if (!goog.isNull(this.position_)) {
this.set(ol.GeolocationProperty.POSITION,
this.transformCoords_(this.position_));
}
}
};
/**
* @type {boolean} Is supported.
*/
ol.Geolocation.isSupported = 'geolocation' in navigator;
/**
* @private
* @param {GeolocationPosition} position position event.
*/
ol.Geolocation.prototype.positionChange_ = function(position) {
var coords = position.coords;
this.position_ = new ol.Coordinate(coords.longitude, coords.latitude);
this.set(ol.GeolocationProperty.POSITION,
this.transformCoords_(this.position_));
this.set(ol.GeolocationProperty.ACCURACY, coords.accuracy);
};
/**
* @private
* @param {GeolocationPositionError} error error object.
*/
ol.Geolocation.prototype.positionError_ = function(error) {
};
/**
* The position of the device.
* @return {ol.Coordinate|undefined} position.
*/
ol.Geolocation.prototype.getPosition = function() {
return /** @type {ol.Coordinate} */ (
this.get(ol.GeolocationProperty.POSITION));
};
goog.exportProperty(
ol.Geolocation.prototype,
'getPosition',
ol.Geolocation.prototype.getPosition);
/**
* The accuracy of the position in meters.
* @return {number|undefined} accuracy.
*/
ol.Geolocation.prototype.getAccuracy = function() {
return /** @type {number} */ (
this.get(ol.GeolocationProperty.ACCURACY));
};
goog.exportProperty(
ol.Geolocation.prototype,
'getAccuracy',
ol.Geolocation.prototype.getAccuracy);
/**
* @return {ol.Projection|undefined} projection.
*/
ol.Geolocation.prototype.getProjection = function() {
return /** @type {ol.Projection} */ (
this.get(ol.GeolocationProperty.PROJECTION));
};
goog.exportProperty(
ol.Geolocation.prototype,
'getProjection',
ol.Geolocation.prototype.getProjection);
/**
* @param {ol.Projection} projection Projection.
*/
ol.Geolocation.prototype.setProjection = function(projection) {
this.set(ol.GeolocationProperty.PROJECTION, projection);
};
goog.exportProperty(
ol.Geolocation.prototype,
'setProjection',
ol.Geolocation.prototype.setProjection);
/**
* @private
* @param {ol.Coordinate} coordinate Coordinate.
* @return {ol.Coordinate} Coordinate.
*/
ol.Geolocation.prototype.transformCoords_ = goog.functions.identity;