readText.js

/**
* @fileoverview This file is used to read in the teapot_0.obj file for setting up the
* teapot buffers. This file is not dependent upon any other file.
*/


/**
 * Gets a file from the server for processing on the client side.
 *
 * @param  file A string that is the name of the file to get
 * @param  callbackFunction The name of function (NOT a string) that will receive a string holding the file
 *         contents.
 *
 */
function readTextFile(file, callbackFunction)
{
    console.log("reading "+ file);
    var rawFile = new XMLHttpRequest();
    var allText = [];
    rawFile.open("GET", file, true);
    
    rawFile.onreadystatechange = function ()
    {
        if(rawFile.readyState === 4)
        {
            if(rawFile.status === 200 || rawFile.status == 0)
            {
                 callbackFunction(rawFile.responseText);
                 console.log("Got text file!");
                 
            }
        }
    }
    rawFile.send(null);
}