From c255e1ce1cb0d3b2661afb3a25a33e55e65553c3 Mon Sep 17 00:00:00 2001
From: hodasemi <michaelh.95@t-online.de>
Date: Mon, 22 Oct 2018 10:17:57 +0200
Subject: [PATCH] Read csv file automatically

---
 index.html |  2 +-
 main.js    | 38 ++++++++++----------------------------
 2 files changed, 11 insertions(+), 29 deletions(-)

diff --git a/index.html b/index.html
index aed73ed..1d7fee1 100644
--- a/index.html
+++ b/index.html
@@ -27,7 +27,7 @@
     <table id="table_bla"></table>
 
     <script>
-        handleFile("world_data_v1.csv")
+        handleFile()
     </script>
 
 
diff --git a/main.js b/main.js
index 92de276..c5aa83c 100644
--- a/main.js
+++ b/main.js
@@ -1,36 +1,24 @@
 // Source: https://blog.mounirmesselmeni.de/2012/11/20/reading-csv-file-with-javascript-and-html5-file-api/
 // Source: https://www.js-tutorials.com/javascript-tutorial/reading-csv-file-using-javascript-html5/
+// Source: https://stackoverflow.com/questions/13329853/reading-server-file-with-javascript
 
-function handleFile(path) {
+function handleFile() {
     // Check for the various File API support.
     if (window.FileReader) {
         // FileReader are supported.
-
-        getAsText(file);
+        var xmlhttp = new XMLHttpRequest();
+        xmlhttp.onreadystatechange = function () {
+            if (xmlhttp.status == 200 && xmlhttp.readyState == 4) {
+                processData(xmlhttp.responseText);
+            }
+        };
+        xmlhttp.open("GET", "world_data_v1.csv", true);
+        xmlhttp.send();
     } else {
         alert('FileReader are not supported in this browser.');
     }
 }
 
-function getAsText(fileToRead) {
-    var reader = new FileReader();
-
-    // Read file into memory as UTF-8
-
-    // TODO: fileToRead is the path to the file -> create a file handle
-
-    reader.readAsText(fileToRead);
-
-    // Handle errors load
-    reader.onload = loadHandler;
-    reader.onerror = errorHandler;
-}
-
-function loadHandler(event) {
-    var csv = event.target.result;
-    processData(csv);
-}
-
 function processData(csv) {
     var table = "<table class='table'>";
     var allTextLines = csv.split(/\r\n|\n/);
@@ -53,9 +41,3 @@ function processData(csv) {
 
     document.getElementById('table_bla').innerHTML = table;
 }
-
-function errorHandler(evt) {
-    if (evt.target.error.name == "NotReadableError") {
-        alert("Canno't read file !");
-    }
-}