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/* IVLE - Informatics Virtual Learning Environment
* Copyright (C) 2007-2008 The University of Melbourne
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Module: Tutorial system (client)
* Author: Matt Giuca
* Date: 25/1/2008
*/
/* Runs at startup. */
function onload()
{
/* Set up the console plugin to display as a popup window */
console_init(true);
}
/** User clicks "Run" button. Do an Ajax call and print the test output.
*/
function runexercise(exerciseid, filename)
{
/* Get the source code the student is submitting */
var exercisediv = document.getElementById(exerciseid);
var exercisebox = exercisediv.getElementsByTagName("textarea")[0];
var code = exercisebox.value;
/* Dump the entire file to the console */
console_enter_line(code, "block");
return;
}
/** Given a response object (JSON-parsed object), displays the result of the
* test to the user. This modifies the given exercisediv's children.
*/
function handle_runresponse(exercisediv, runresponse)
{
var runoutput = exercisediv.getElementsByTagName("textarea")[1];
dom_removechildren(runoutput);
runoutput.appendChild(document.createTextNode(runresponse.stdout));
}
/** User clicks "Submit" button. Do an Ajax call and run the test.
* exerciseid: "id" of the exercise's div element.
* filename: Filename of the exercise's XML file (used to identify the exercise
* when interacting with the server).
*/
function submitexercise(exerciseid, filename)
{
/* Get the source code the student is submitting */
var exercisediv = document.getElementById(exerciseid);
var exercisebox = exercisediv.getElementsByTagName("textarea")[0];
var code = exercisebox.value;
var args = {"code": code, "exercise": filename, "action": "test"};
/* Send the form as multipart/form-data, since we are sending a whole lump
* of Python code, it should be treated like a file upload. */
/* AJAX callback function */
var callback = function(xhr)
{
var testresponse = JSON.parse(xhr.responseText);
handle_testresponse(exercisediv, testresponse);
}
ajax_call(callback, "tutorialservice", "", args, "POST",
"multipart/form-data");
}
/** Given a exercise div, return the testoutput div which is its child.
* (The div which is its child whose class is "testoutput".
*/
function get_testoutput(exercisediv)
{
var childs = exercisediv.childNodes;
var i;
var testoutput;
for (i=0; i<childs.length; i++)
if (childs[i].nodeType == exercisediv.ELEMENT_NODE &&
childs[i].getAttribute("class") == "testoutput")
return childs[i];
return null;
}
/** Given a response object (JSON-parsed object), displays the result of the
* test to the user. This modifies the given exercisediv's children.
*/
function handle_testresponse(exercisediv, testresponse)
{
var testoutput = get_testoutput(exercisediv);
var i, j;
var ul;
var case_ul;
if (testoutput == null) return; /* should not happen */
dom_removechildren(testoutput);
ul = document.createElement("ul");
testoutput.appendChild(ul);
if ("critical_error" in testresponse)
{
/* Only one error - and it's bad.
* Just print and stop */
ul.appendChild(create_response_item("critical", 0,
testresponse.critical_error.name,
testresponse.critical_error.detail));
return;
}
for (i=0; i<testresponse.cases.length; i++)
{
var testcase = testresponse.cases[i];
if ("exception" in testcase)
{
/* User's code threw an exception */
fail_li = create_response_item("fail", 0, testcase.name);
ul.appendChild(fail_li);
/* Create a sub-ul to display the failing cases. */
case_ul = document.createElement("ul");
fail_li.appendChild(case_ul);
case_ul.appendChild(create_response_item("exception", 0,
testcase.exception.name, testcase.exception.detail));
}
else if (testcase.passed)
{
/* All parts of the test case passed. Just report the overall case
* passing. */
ul.appendChild(create_response_item("pass", 0, testcase.name));
}
else
{
var fail_li = create_response_item("fail", 0, testcase.name);
ul.appendChild(fail_li);
/* Create a sub-ul to display the failing cases. */
case_ul = document.createElement("ul");
fail_li.appendChild(case_ul);
for (j=0; j<testcase.parts.length; j++)
{
var part = testcase.parts[j];
if (part.passed)
{
case_ul.appendChild(create_response_item("pass", 1,
part.description));
}
else
{
case_ul.appendChild(create_response_item("fail", 1,
part.description /*, part.error_message */));
}
}
}
}
}
/* DOM creators for test case response elements */
/** Create a <li> element for the result of a test case.
* type: "pass", "fail", "exception" or "critical"
* level is 0 for outer, and 1 for inner
* For exceptions and crits, "desc" is the exception name,
* detail is the message; detail should be null for passing cases.
*/
function create_response_item(type, level, desc, detail)
{
var crit = false;
if (type == "critical")
{
/* Crits look like exceptions, but are slightly different */
crit = true;
type = "exception";
}
var li = document.createElement("li");
if (level == 0)
{
li.setAttribute("class", type);
}
else
{
if (type == "pass") { li.setAttribute("class", "check") }
else { li.setAttribute("class", "cross") }
}
if (level == 0) /* print Pass/Fail tag at outer level only */
{
var b = document.createElement("b");
var text = type[0].toUpperCase() + type.substr(1) + ":";
b.appendChild(document.createTextNode(text));
li.appendChild(b);
}
if (type == "pass")
text = desc;
else if (type == "fail")
text = desc + (detail == null ? "" : ":");
else if (type == "exception")
{
if (crit)
text = "Your code could not be executed, "
+ "due to the following error:";
else
text = "The following exception occured "
+ "while running your code:";
}
li.appendChild(document.createTextNode(" " + text));
if (type == "pass" || (type == "fail" && detail == null))
return li;
/* Non-passes, display the error message */
li.appendChild(document.createElement("br"));
if (type == "exception")
{
b = document.createElement("b");
b.appendChild(document.createTextNode(desc + ":"));
li.appendChild(b);
}
li.appendChild(document.createTextNode(detail));
return li;
}
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