93 lines
2.5 KiB
JavaScript
93 lines
2.5 KiB
JavaScript
var These3Words = (function () {
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'use strict';
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var defaultLat = 46.2323355675,
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defaultLng = 6.05541944504,
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defaultLabel = 'spitting-ripple-fontanel';
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var apiGet = function (latLng, callback, callbackError) {
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var request = new window.XMLHttpRequest();
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request.open('GET', '/api/' + latLng.lat() + ',' + latLng.lng(), true);
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request.onload = function () {
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callback(request.status, JSON.parse(request.responseText));
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};
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if (typeof callbackError === "function") {
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request.onerror = callbackError;
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}
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request.send();
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};
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var Map = function (lat, lng, label) {
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this.latLng = new google.maps.LatLng(lat || defaultLat, lng || defaultLng);
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this.label = label || defaultLabel;
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this.mapCanvas = null;
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this.map = null;
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this.marker = null;
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};
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Map.prototype.init = function () {
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var that = this;
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var initMap = function () {
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that.map = new google.maps.Map(that.mapCanvas, {
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center: that.latLng,
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zoom: 14
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});
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that.marker = new google.maps.Marker({
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position: that.latLng,
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map: that.map,
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title: that.label
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});
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google.maps.event.addListener(that.map, 'click', function (evt) {
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that.moveTo(evt.latLng);
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});
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};
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this.mapCanvas = document.body.appendChild(document.createElement('div'));
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this.mapCanvas.id = 'map-canvas';
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google.maps.event.addDomListener(window, 'load', initMap);
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window.addEventListener('popstate', function (evt) {
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var state = evt.state;
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if (typeof state === "object") {
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console.log(state);
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that.update(new google.maps.LatLng(state.lat, state.lng), state.label);
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}
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});
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window.history.replaceState({
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lat: that.latLng.lat(),
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lng: that.latLng.lng(),
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label: that.label
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}, that.label, '/' + that.label);
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document.title = 'These3Words: ' + that.label;
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};
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Map.prototype.moveTo = function (latLng) {
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var that = this;
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apiGet(latLng, function (status, data) {
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if (status >= 200 && status < 400) {
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that.update(latLng, data.three);
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window.history.pushState({
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lat: latLng.lat(),
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lng: latLng.lng(),
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label: data.three
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}, data.three, '/' + data.three);
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document.title = 'These3Words: ' + data.three;
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}
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});
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};
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Map.prototype.update = function (latLng, label) {
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this.latLng = latLng;
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this.label = label;
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this.marker.setPosition(latLng);
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this.marker.setTitle(label);
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};
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return {
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Map: Map
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};
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}());
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