我想依靠initialize()
函数......但每次我都这样做,它会破坏我的代码。
我最终试图做this这样的事情,我在这里有一个侧边栏,里面有与地图上的标记直接相关的东西,AJAX在......首先,我希望能够放置initialize()
函数之外的其他函数。 这很好用:
<script>
function initialize() {
// create the map object
var mapOptions = {
zoom: 14,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById("map_canvas"),
mapOptions);
// create your location marker
var mylocOptions = {
draggable: true,
animation: google.maps.Animation.DROP,
icon: new google.maps.MarkerImage('//maps.gstatic.com/mapfiles/mobile/mobileimgs2.png',
new google.maps.Size(22,22),
new google.maps.Point(0,18),
new google.maps.Point(11,11)),
title: "You are here..."
};
var myloc = new google.maps.Marker(mylocOptions);
// get location information from browser, or from user input, or from database
<% if !signed_in? || !current_user.loc %>
if (navigator.geolocation) navigator.geolocation.getCurrentPosition(function(pos) {
var me = new google.maps.LatLng(pos.coords.latitude, pos.coords.longitude);
myloc.setPosition(me);
myloc.setMap(map);
map.setCenter(me);
$.ajax({
data: { me: me.toString() },
type: 'POST',
url: '/set-location'
})
}, function(error) {
var address = prompt('Where are you looking?');
geocoder = new google.maps.Geocoder();
geocoder.geocode({ 'address': address }, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
var me = results[0].geometry.location
myloc.setPosition(me);
myloc.setMap(map);
map.setCenter(me);
} else {
alert("Geocode was not successful for the following reason: " + status);
};
});
});
<% else %>
var me = new google.maps.LatLng(<%= current_user.loc %>);
myloc.setPosition(me);
myloc.setMap(map);
map.setCenter(me);
map.setZoom(12);
<% end %>
// watch for marker movement, and update location accordingly
var oldPos = myloc.getPosition();
google.maps.event.addListener(myloc, "dragend", function(e){
revGeo = new google.maps.Geocoder();
var newPos = myloc.getPosition();
$.ajax({
data: { me: newPos.toString() },
type: 'GET',
url: '/set-location'
})
if(oldPos != newPos)
revGeo.geocode({'latLng': newPos}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
if (results[1]) {
$('#loc').html(results[1].formatted_address);
}
} else {
alert("Geocoder failed due to: " + status);
}
});
oldPos = newPos;
});
// when creating an event, check for event location,
// verify it's existance and put a marker down on the map
$(document).on('focusout', '#event_location', function() {
geocoder = new google.maps.Geocoder();
address = document.getElementById("event_location").value;
geocoder.geocode({ 'address': address }, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
var coords = results[0].geometry.location;
map.setCenter(coords);
var marker = new google.maps.Marker({
map: map,
animation: google.maps.Animation.DROP,
position: coords
});
$('#coords').html('coordinates: ' + coords)
$('#event_geocode').val(coords.toString())
} else {
alert(status + " for " + address);
};
});
});
}
</script>
...但我确信它可以被打破。对我做错了什么想法?