GeoLocation が PC では機能するのに iPhone では機能しない理由がよくわかりません... sensor=trueAPI へのスクリプト呼び出し内にありますが、それ以外は途方に暮れています。スクリプト全体は次のとおりです。
<div id="info"></div>
<div id="map_canvas" style="width:908px; height:420px"></div>
<input type="text" id="addressInput" size="10"/>
<select id="radiusSelect">
<option value="5" selected>5mi</option>
<option value="15" selected>15mi</option>
<option value="25" selected>25mi</option>
<option value="100">100mi</option>
<option value="200">200mi</option>
<option value="4000">4000mi</option>
</select>
<input type="button" value="Search" onclick="searchLocations();">
<div><select id="locationSelect" style="width:100%;visibility:hidden"></select></div>
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?key=AIzaSyCe49sI29q0AVNo9iVvQ-lDlDwZpFZuA4o&sensor=true"></script>
<script type="text/javascript" src="http://gmaps-samples-v3.googlecode.com/svn/trunk/geolocate/geometa.js"></script>
<script type="text/javascript">
var map;
var markers = [];
var infoWindow;
var locationSelect;
function load() {
map = new google.maps.Map(document.getElementById("map_canvas"), {
center: new google.maps.LatLng(40, -100),
zoom: 4,
mapTypeId: 'roadmap',
mapTypeControlOptions: {style: google.maps.MapTypeControlStyle.DROPDOWN_MENU}
});
infoWindow = new google.maps.InfoWindow();
locationSelect = document.getElementById("locationSelect");
locationSelect.onchange = function() {
var markerNum = locationSelect.options[locationSelect.selectedIndex].value;
if (markerNum != "none") {
google.maps.event.trigger(markers[markerNum], 'click');
}
};
// geolocation
prepareGeolocation();
doGeolocation();
}
function doGeolocation() {
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(positionSuccess, positionError);
} else {
positionError(-1);
}
}
function positionError(err) {
var msg;
switch(err.code) {
case err.UNKNOWN_ERROR:
msg = "Unable to find your location";
break;
case err.PERMISSION_DENINED:
msg = "Permission denied in finding your location";
break;
case err.POSITION_UNAVAILABLE:
msg = "Your location is currently unknown";
break;
case err.BREAK:
msg = "Attempt to find location took too long";
break;
default:
msg = "Location detection not supported in browser";
}
document.getElementById('info').innerHTML = msg;
}
function positionSuccess(position) {
// Centre the map on the new location
var coords = position.coords || position.coordinate || position;
var latLng = new google.maps.LatLng(coords.latitude, coords.longitude);
map.setCenter(latLng);
map.setZoom(15);
var marker = new google.maps.Marker({
map: map,
position: latLng,
title: 'Why, there you are!'
});
document.getElementById('info').innerHTML = 'Looking for <b>' +
coords.latitude + ', ' + coords.longitude + '</b>...';
// And reverse geocode.
(new google.maps.Geocoder()).geocode({latLng: latLng}, function(resp) {
var place = "You're around here somewhere!";
if (resp[0]) {
var bits = [];
for (var i = 0, I = resp[0].address_components.length; i < I; ++i) {
var component = resp[0].address_components[i];
if (contains(component.types, 'political')) {
bits.push('<b>' + component.long_name + '</b>');
}
}
if (bits.length) {
place = bits.join(' > ');
}
marker.setTitle(resp[0].formatted_address);
}
document.getElementById('info').innerHTML = place;
});
}
function contains(array, item) {
for (var i = 0, I = array.length; i < I; ++i) {
if (array[i] == item) return true;
}
return false;
}
function searchLocations() {
console.log("searching locations...");
var address = document.getElementById("addressInput").value;
var geocoder = new google.maps.Geocoder();
geocoder.geocode({address: address}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
searchLocationsNear(results[0].geometry.location);
} else {
alert(address + ' not found');
}
});
}
function clearLocations() {
//infoWindow.close();
for (var i = 0; i < markers.length; i++) {
markers[i].setMap(null);
}
markers.length = 0;
locationSelect.innerHTML = "";
var option = document.createElement("option");
option.value = "none";
option.innerHTML = "See all results:";
locationSelect.appendChild(option);
locationSelect.style.visibility = "visible";
}
function searchLocationsNear(center) {
clearLocations();
var radius = document.getElementById('radiusSelect').value;
/* var searchUrl = 'phpsqlajax_search.php?lat=' + center.lat() + '&lng=' + center.lng() + '&radius=' + radius; */
var searchUrl = 'http://dev-imac.local/phpsqlajax_search.php?lat=' + center.lat() + '&lng=' + center.lng() + '&radius=' + radius;
console.log(searchUrl);
downloadUrl(searchUrl, function(data) {
var xml = parseXml(data);
var markerNodes = xml.documentElement.getElementsByTagName("marker");
var bounds = new google.maps.LatLngBounds();
for (var i = 0; i < markerNodes.length; i++) {
var name = markerNodes[i].getAttribute("name");
var address = markerNodes[i].getAttribute("address");
var distance = parseFloat(markerNodes[i].getAttribute("distance"));
var latlng = new google.maps.LatLng(
parseFloat(markerNodes[i].getAttribute("lat")),
parseFloat(markerNodes[i].getAttribute("lng")));
createOption(name, distance, i);
createMarker(latlng, name, address);
bounds.extend(latlng);
}
map.fitBounds(bounds);
});
}
function createMarker(latlng, name, address) {
var html = "<b>" + name + "</b> <br/>" + address;
var marker = new google.maps.Marker({
map: map,
position: latlng
});
google.maps.event.addListener(marker, 'click', function() {
infoWindow.setContent(html);
infoWindow.open(map, marker);
});
markers.push(marker);
}
function createOption(name, distance, num) {
var option = document.createElement("option");
option.value = num;
option.innerHTML = name + "(" + distance.toFixed(1) + ")";
locationSelect.appendChild(option);
}
function downloadUrl(url, callback) {
var request = window.ActiveXObject ?
new ActiveXObject('Microsoft.XMLHTTP') :
new XMLHttpRequest;
request.onreadystatechange = function() {
if (request.readyState == 4) {
request.onreadystatechange = doNothing;
callback(request.responseText, request.status);
}
};
request.open('GET', url, true);
request.send(null);
}
function parseXml(str) {
if (window.ActiveXObject) {
var doc = new ActiveXObject('Microsoft.XMLDOM');
doc.loadXML(str);
return doc;
} else if (window.DOMParser) {
return (new DOMParser).parseFromString(str, 'text/xml');
}
}
function doNothing() {}
window.onload = load();
</script>