You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
86 lines
2.0 KiB
86 lines
2.0 KiB
// server url
|
|
var serverUrl = "http://widgets.vvo-online.de/abfahrtsmonitor/";
|
|
|
|
// xmlhttp object function
|
|
function getHTTPObject() {
|
|
|
|
console.log("xml http object function");
|
|
|
|
var xhr;
|
|
|
|
if(window.XMLHttpRequest) {
|
|
xhr = new XMLHttpRequest();
|
|
} else if(window.ActiveXObject) {
|
|
xhr = new ActiveXObject("Msxml2.XMLHTTP");
|
|
}
|
|
|
|
return xhr;
|
|
|
|
}
|
|
|
|
|
|
// ajax call function
|
|
function ajaxCall(dataUrl, outputElement, callback) {
|
|
|
|
console.log("ajax function");
|
|
|
|
// get the xmlhttp object which is supported
|
|
var request = getHTTPObject();
|
|
|
|
outputElement.innerHTML = "Lade Daten ...";
|
|
|
|
request.onreadystatechange = function() {
|
|
|
|
if(request.readyState === 4 && request.status === 200) {
|
|
|
|
//save ajax response
|
|
var response = request.responseText;
|
|
|
|
// check if callback is a function
|
|
if(typeof callback === "function") {
|
|
callback(response);
|
|
}
|
|
}
|
|
};
|
|
|
|
request.open("get", dataUrl, true);
|
|
request.send(null);
|
|
|
|
}
|
|
|
|
// wrap all in anonymous function to get out of global scope
|
|
(function() {
|
|
|
|
console.log("anonymous function");
|
|
|
|
// get the search form
|
|
var searchForm = document.getElementById("search-form");
|
|
|
|
// haltestelle object
|
|
var haltestelle = {
|
|
|
|
getInfo : function(event) {
|
|
|
|
console.log("getInfo function");
|
|
|
|
// prevent submit default behaviour
|
|
event.preventDefault();
|
|
|
|
// get output area
|
|
var target = document.getElementById("output");
|
|
var hstName = document.getElementById("q").value;
|
|
var hstUrl = serverUrl + "Abfahrten.do?ort=dresden&hst=" + hstName;
|
|
|
|
ajaxCall(hstUrl, target, function(data) {
|
|
|
|
target.innerHTML = "";
|
|
|
|
target.innerHTML = "<p>" + data + "</p>";
|
|
});
|
|
}
|
|
};
|
|
|
|
//event listeners
|
|
searchForm.addEventListener("submit", haltestelle.getInfo, false);
|
|
|
|
})(); // end of anonymous function
|