|
@@ -0,0 +1,96 @@
|
|
1
|
+/**
|
|
2
|
+ * Created with JetBrains WebStorm.
|
|
3
|
+ * User: torstenmeissner
|
|
4
|
+ * Date: 24.02.13
|
|
5
|
+ * Time: 22:38
|
|
6
|
+ * To change this template use File | Settings | File Templates.
|
|
7
|
+ */
|
|
8
|
+
|
|
9
|
+
|
|
10
|
+
|
|
11
|
+// server url
|
|
12
|
+var serverUrl = "http://widgets.vvo-online.de/abfahrtsmonitor/";
|
|
13
|
+
|
|
14
|
+// xmlhttp object function
|
|
15
|
+function getHTTPObject() {
|
|
16
|
+
|
|
17
|
+ console.log("xml http object function");
|
|
18
|
+
|
|
19
|
+ var xhr;
|
|
20
|
+
|
|
21
|
+ if(window.XMLHttpRequest) {
|
|
22
|
+ xhr = new XMLHttpRequest();
|
|
23
|
+ } else if(window.ActiveXObject) {
|
|
24
|
+ xhr = new ActiveXObject("Msxml2.XMLHTTP");
|
|
25
|
+ }
|
|
26
|
+
|
|
27
|
+ return xhr;
|
|
28
|
+
|
|
29
|
+}
|
|
30
|
+
|
|
31
|
+
|
|
32
|
+// ajax call function
|
|
33
|
+function ajaxCall(dataUrl, outputElement, callback) {
|
|
34
|
+
|
|
35
|
+ console.log("ajax function");
|
|
36
|
+
|
|
37
|
+ // get the xmlhttp object which is supported
|
|
38
|
+ var request = getHTTPObject();
|
|
39
|
+
|
|
40
|
+ outputElement.innerHTML = "Lade Daten ...";
|
|
41
|
+
|
|
42
|
+ request.onreadystatechange = function() {
|
|
43
|
+
|
|
44
|
+ if(request.readyState === 4 && request.status === 200) {
|
|
45
|
+
|
|
46
|
+ //save ajax response
|
|
47
|
+ var response = decodeHTML(request.responseText);
|
|
48
|
+
|
|
49
|
+ // check if callback is a function
|
|
50
|
+ if(typeof callback === "function") {
|
|
51
|
+ callback(response);
|
|
52
|
+ }
|
|
53
|
+ }
|
|
54
|
+ };
|
|
55
|
+
|
|
56
|
+ request.open("get", dataUrl, true);
|
|
57
|
+ request.send(null);
|
|
58
|
+
|
|
59
|
+}
|
|
60
|
+
|
|
61
|
+// wrap all in anonymous function to get out of global scope
|
|
62
|
+(function() {
|
|
63
|
+
|
|
64
|
+ console.log("anonymous function");
|
|
65
|
+
|
|
66
|
+ // get the search form
|
|
67
|
+ var searchForm = document.getElementById("search-form");
|
|
68
|
+
|
|
69
|
+ // haltestelle object
|
|
70
|
+ var haltestelle = {
|
|
71
|
+
|
|
72
|
+ getInfo : function(event) {
|
|
73
|
+
|
|
74
|
+ console.log("getInfo function");
|
|
75
|
+
|
|
76
|
+ // prevent submit default behaviour
|
|
77
|
+ event.preventDefault();
|
|
78
|
+
|
|
79
|
+ // get output area
|
|
80
|
+ var target = document.getElementById("output");
|
|
81
|
+ var hstName = document.getElementById("q").value;
|
|
82
|
+ var hstUrl = serverUrl + "Abfahrten.do?ort=dresden&hst=" + hstName;
|
|
83
|
+
|
|
84
|
+ ajaxCall(hstUrl, target, function(data) {
|
|
85
|
+
|
|
86
|
+ target.innerHTML = "";
|
|
87
|
+
|
|
88
|
+ target.innerHTML = "<p>" + data + "</p>";
|
|
89
|
+ });
|
|
90
|
+ }
|
|
91
|
+ };
|
|
92
|
+
|
|
93
|
+ //event listeners
|
|
94
|
+ searchForm.addEventListener("submit", haltestelle.getInfo, false);
|
|
95
|
+
|
|
96
|
+})(); // end of anonymous function
|