Preventing href until gelocation captured (callback help)

debugcn Published at Dev

Denis

After a user clicks an image (html code) I want it to ask for geolocation and only href when captured. The issue is that the specialDisplyLocation method is not being called at all to set the variables. I'm thinking it's something with the way I'm using the callback.

latlng, lat and lng are global variables

Here's the current code:

function getForSpecial(callback) {
    callback (arguments[1]);
}

function getGeo (compid){

    if (navigator.geolocation){
        navigator.geolocation.getCurrentPosition(specialDisplayLocation, displayError);
        window.location.href = "specials.php?cid="+compid+"&lat="+lat+"&lng="+lng;
    }else{
        display(2,"Sorry - your browser doesn't support geolocation! " +
            "Use your postal code.");
    }
}

function specialDisplayLocation() {
    latlng = new google.maps.LatLng(
        parseFloat(position.coords.latitude),
        parseFloat(position.coords.longitude));
    lat = position.coords.latitude;
    lng = position.coords.longitude;
    alert("lat: "+lat);
}

Html:

<div class="ad_125x125" 
    onclick="getForSpecial(getGeo,<?php echo $output125[0][0]; ?>)">
    <img src="/ed/img/promos/125/<?php echo $output125[0][1]; ?>" />
</div>

Satpal

As you are calling specialDisplayLocation as success callback. I would suggest you to redirect in that method.

function specialDisplayLocation() { latlng = new google.maps.LatLng( parseFloat(position.coords.latitude), parseFloat(position.coords.longitude)); lat = position.coords.latitude; lng = position.coords.longitude; alert("lat: "+lat); //Redirect window.location.href = "specials.php?cid="+compid+"&lat="+lat+"&lng="+lng; }

EDIT

Try this

function getForSpecial(callback) {
    callback (arguments[1]);
}

function getGeo (compid){

    if (navigator.geolocation){
        navigator.geolocation.getCurrentPosition(function(){
            specialDisplayLocation();
            window.location.href = "specials.php?cid="+compid+"&lat="+lat+"&lng="+lng;
        }, displayError);

    }else{
        display(2,"Sorry - your browser doesn't support geolocation! " +
            "Use your postal code.");
    }
}

function specialDisplayLocation() {
    latlng = new google.maps.LatLng(
        parseFloat(position.coords.latitude),
        parseFloat(position.coords.longitude));
    lat = position.coords.latitude;
    lng = position.coords.longitude;
    alert("lat: "+lat);
}

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edited at2021-06-24

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