oxjs/demos/listmap2/js/listmap.js
2011-05-29 14:22:54 +02:00

166 lines
No EOL
7.3 KiB
JavaScript

Ox.load('UI', {
debug: true,
theme: 'modern'
}, function() {
Ox.load('Geo', function() {
Ox.getJSON('json/cities100000.json', function(cities) {
var places = cities.map(function(city, i) {
var countryCode = city.country_code == 'XK' ? 'RS-KO' : city.country_code,
marker = city.population > 20000000 ? {size: 24, color: [255, 0, 0]} :
city.population > 10000000 ? {size: 22, color: [255, 32, 0]} :
city.population > 5000000 ? {size: 20, color: [255, 64, 0]} :
city.population > 2000000 ? {size: 18, color: [255, 96, 0]} :
city.population > 1000000 ? {size: 16, color: [255, 128, 0]} :
city.population > 500000 ? {size: 14, color: [255, 160, 0]} :
city.population > 200000 ? {size: 12, color: [255, 192, 0]} :
city.population > 100000 ? {size: 10, color: [255, 224, 0]} :
{size: 8, color: [255, 255, 0]},
area = Math.sqrt(Math.max(city.population, 1) * 100),
latSize = area / Ox.EARTH_CIRCUMFERENCE * 360,
lngSize = area * Ox.getDegreesPerMeter(city.latitude);
return {
alternativeNames: [],
area: area,
countryCode: countryCode,
editable: true,
flag: countryCode,
geoname: city.name + ', ' + Ox.getCountryByCode(countryCode).name,
geonameSort: getGeonameSort(city.name + ', ' + Ox.getCountryByCode(countryCode).name),
id: Ox.encodeBase32(i),
markerColor: marker.color,
markerSize: marker.size,
name: city.name,
type: 'city',
lat: city.latitude,
lng: city.longitude,
south: city.latitude - latSize / 2,
west: city.longitude - lngSize / 2,
north: city.latitude + latSize / 2,
east: city.longitude + lngSize / 2
};
});
var $listmap = new Ox.ListMap({
height: window.innerHeight,
places: function(options, callback) {
// this simulates a remote API
Ox.print('OPTIONS', options)
var data = {};
// query, sort, range, area
if (Ox.isEmpty(options)) {
data = {
items: places.length,
south: 90,
west: 180,
north: -90,
east: -180
};
places.forEach(function(place) {
['south', 'west', 'north', 'east'].forEach(function(v) {
if (
((v == 'south' || v == 'west') && place[v] < data[v])
|| ((v == 'north' || v == 'east') && place[v] > data[v])
) {
data[v] = place[v];
}
});
});
} else {
data.items = places;
if (options.query) {
// only case is key: 'id', value: ..., operator: '='
data.items = data.items.filter(function(place) {
return place[options.query.key] == options.query.value;
});
}
if (options.area) {
data.items = data.items.filter(function(place) {
// fixme: fails if crosses dateline
return place.lat > options.area.south
&& place.lat < options.area.north
&& place.lng > options.area.west
&& place.lng < options.area.east;
}).sort(function(a, b) {
return b.area - a.area;
}).filter(function(place, i) {
return i < 100;
});
} else {
data.items.sort(function(a, b) {
if (options.sort[0].key == 'geoname') {
aValue = a.geonameSort;
bValue = b.geonameSort;
} else {
aValue = a[options.sort[0].key];
bValue = b[options.sort[0].key];
}
var ret = 0;
if (
(options.sort[0].operator == '+' && aValue < bValue)
|| (options.sort[0].operator == '-' && aValue > bValue)
) {
ret = -1;
} else if (
(options.sort[0].operator == '+' && aValue > bValue)
|| (options.sort[0].operator == '-' && aValue < bValue)
) {
ret = 1;
}
return ret;
});
}
if (options.ids) {
data.positions = {};
data.items.forEach(function(place, i) {
if (options.ids.indexOf(place.id) > -1) {
data.positions[place.id] = i;
}
});
delete data.items;
} else if (options.range) {
data.items = data.items.filter(function(place, i) {
return i >= options.range[0] && i < options.range[1];
});
}
}
Ox.print('DATA', data)
callback({
data: data,
result: {code: 200, text: 'OK'}
});
},
width: window.innerWidth
})
.bindEvent({
geocode: function(event, data) {
Ox.print(event)
Ox.print(JSON.stringify(data))
}
})
.appendTo(Ox.UI.$body);
$(window).resize(function() {
Ox.print('RESIZE', window.innerHeight)
$listmap.options({
height: window.innerHeight,
width: window.innerWidth
});
});
window.$listmap = $listmap;
function getGeonameSort(geoname) {
var names = geoname.split(', ');
if (!Ox.getCountryByGeoname(names[names.length - 1])) {
names.push('~');
}
return names.reverse().join(', ');
}
});
});
});