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(function (FMS, Backbone, _, $) {
_.extend( FMS, {
AroundView: FMS.FMSView.extend({
template: 'around',
id: 'around-page',
events: {
'pagehide': 'destroy',
'pageshow': 'afterDisplay',
'click #locate_search': 'goSearch',
'click #reports': 'goReports',
'click #search': 'goSearch',
'click #relocate': 'centerMapOnPosition',
'click #mark-here': 'onClickReport'
},
afterDisplay: function() {
if ( FMS.currentLocation ) {
var info = { coordinates: FMS.currentLocation };
FMS.currentLocation = null;
this.showMap(info);
} else if ( this.model && this.model.get('lat') ) {
var modelInfo = { coordinates: { latitude: this.model.get('lat'), longitude: this.model.get('lon') } };
this.showMap(modelInfo);
} else {
this.locate();
}
},
locate: function() {
$('#locating').show();
this.listenTo(FMS.locator, 'gps_located', this.showMap);
this.listenTo(FMS.locator, 'gps_failed', this.noMap );
this.listenTo(FMS.locator, 'gps_locating', this.locationUpdate);
FMS.locator.geolocate(100);
this.startLocateProgress();
},
locationUpdate: function( accuracy ) {
if ( accuracy && accuracy < 500 ) {
$('#progress-bar').css( 'background-color', 'orange' );
} else if ( accuracy && accuracy < 250 ) {
$('#progress-bar').css( 'background-color', 'yellow' );
} else {
$('#progress-bar').css( 'background-color', 'grey' );
}
$('#accuracy').text(parseInt(accuracy, 10) + 'm');
},
startLocateProgress: function() {
this.located = false;
this.locateCount = 1;
var that = this;
window.setTimeout( function() {that.showLocateProgress();}, 1000);
},
showLocateProgress: function() {
if ( !this.located && this.locateCount > 20 ) {
FMS.searchMessage = FMS.strings.geolocation_failed;
this.navigate('search');
return;
}
var percent = ( ( 20 - this.locateCount ) / 20 ) * 100;
$('#progress-bar').css( 'width', percent + '%' );
this.locateCount++;
var that = this;
window.setTimeout( function() {that.showLocateProgress();}, 1000);
},
showMap: function( info ) {
this.stopListening(FMS.locator, 'gps_locating');
this.stopListening(FMS.locator, 'gps_located');
this.stopListening(FMS.locator, 'gps_failed');
this.listenTo(FMS.locator, 'gps_current_position', this.positionUpdate);
this.located = true;
this.locateCount = 21;
$('#ajaxOverlay').hide();
$('#locating').hide();
var coords = info.coordinates;
fixmystreet.latitude = coords.latitude;
fixmystreet.longitude = coords.longitude;
if ( !fixmystreet.map ) {
show_map();
} else {
var centre = this.projectCoords( coords );
FMS.currentPosition = centre;
fixmystreet.map.panTo(centre);
}
FMS.locator.trackPosition();
},
positionUpdate: function( info ) {
var centre = this.projectCoords( info.coordinates );
FMS.currentPosition = centre;
var point = new OpenLayers.Geometry.Point( centre.lon, centre.lat );
fixmystreet.location.removeAllFeatures();
var x = new OpenLayers.Feature.Vector(
point,
{},
{
graphicZIndex: 3000,
graphicName: 'circle',
strokeColor: '#00f',
strokeWidth: 1,
fillOpacity: 1,
fillColor: '#00f',
pointRadius: 10
}
);
fixmystreet.location.addFeatures([ x ]);
},
centerMapOnPosition: function(e) {
e.preventDefault();
if ( !fixmystreet.map ) {
return;
}
// if there isn't a currentPosition then something
// is up so we probably should not recenter
if ( FMS.currentPosition ) {
fixmystreet.map.panTo(FMS.currentPosition);
}
},
noMap: function( details ) {
this.stopListening(FMS.locator, 'gps_locating');
this.stopListening(FMS.locator, 'gps_located');
this.stopListening(FMS.locator, 'gps_failed');
this.locateCount = 21;
$('#locating').hide();
$('#ajaxOverlay').hide();
if ( details.msg ) {
FMS.searchMessage = details.msg;
} else {
FMS.searchMessage = FMS.strings.location_problem;
}
this.navigate('search');
},
onClickReport: function() {
var position = this.getCrossHairPosition();
this.listenTo(FMS.locator, 'gps_located', this.goPhoto);
this.listenTo(FMS.locator, 'gps_failed', this.noMap );
FMS.locator.check_location( { latitude: position.lat, longitude: position.lon } );
},
goPhoto: function(info) {
this.stopListening(FMS.locator);
FMS.locator.stopTracking();
this.model.set('lat', info.coordinates.latitude );
this.model.set('lon', info.coordinates.longitude );
this.model.set('categories', info.details.category );
FMS.saveCurrentDraft();
this.navigate( 'photo' );
},
goSearch: function(e) {
e.preventDefault();
this.stopListening(FMS.locator);
FMS.locator.stopTracking();
this.navigate( 'search' );
},
goReports: function(e) {
e.preventDefault();
this.stopListening(FMS.locator);
FMS.locator.stopTracking();
this.navigate( 'reports' );
},
getCrossHairPosition: function() {
var cross = fixmystreet.map.getControlsByClass(
"OpenLayers.Control.Crosshairs");
var position = cross[0].getMapPosition();
position.transform(
fixmystreet.map.getProjectionObject(),
new OpenLayers.Projection("EPSG:4326")
);
return position;
},
projectCoords: function( coords ) {
var centre = new OpenLayers.LonLat( coords.longitude, coords.latitude );
centre.transform(
new OpenLayers.Projection("EPSG:4326"),
fixmystreet.map.getProjectionObject()
);
return centre;
},
_destroy: function() {
fixmystreet = null;
}
})
});
})(FMS, Backbone, _, $);
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