/*

Online Python Tutor

https://github.com/pgbovine/OnlinePythonTutor/

Copyright (C) 2010-2012 Philip J. Guo (philip@pgbovine.net)

Permission is hereby granted, free of charge, to any person obtaining a

copy of this software and associated documentation files (the

"Software"), to deal in the Software without restriction, including

without limitation the rights to use, copy, modify, merge, publish,

distribute, sublicense, and/or sell copies of the Software, and to

permit persons to whom the Software is furnished to do so, subject to

the following conditions:

The above copyright notice and this permission notice shall be included

in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY

CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

*/

// The Online Python Tutor front-end, which calls the cgi-bin/web_exec.py

// back-end with a string representing the user's script POST['user_script']

// and receives a complete execution trace, which it parses and displays to HTML.

// Pre-req: edu-python.js and jquery.ba-bbq.min.js should be imported BEFORE this file

function enterEditMode() {

$.bbq.pushState({ mode: 'edit' });

}

function enterVisualizeMode(traceData) {

curTrace = traceData; // first assign it to the global curTrace, then

// let jQuery BBQ take care of the rest

$.bbq.pushState({ mode: 'visualize' });

}

$(document).ready(function() {

eduPythonCommonInit(); // must call this first!

// this doesn't work since we need jquery.textarea.js ...

//$("#pyInput").tabby(); // recognize TAB and SHIFT-TAB

// be friendly to the browser's forward and back buttons

// thanks to http://benalman.com/projects/jquery-bbq-plugin/

$(window).bind("hashchange", function(e) {

appMode = $.bbq.getState("mode"); // assign this to the GLOBAL appMode

// default mode is 'edit'

if (appMode == undefined) {

appMode = 'edit';

}

// if there's no curTrace, then default to edit mode since there's

// nothing to visualize:

if (!curTrace) {

appMode = 'edit';

$.bbq.pushState({ mode: 'edit' });

}

if (appMode == 'edit') {

$("#pyInputPane").show();

$("#pyOutputPane").hide();

}

else if (appMode == 'visualize') {

$("#pyInputPane").hide();

$("#pyOutputPane").show();

$('#executeBtn').html("Visualize execution");

$('#executeBtn').attr('disabled', false);

// do this AFTER making #pyOutputPane visible, or else

// jsPlumb connectors won't render properly

processTrace(curTrace /* kinda dumb and redundant */, false);

}

else {

assert(false);

}

});

// From: http://benalman.com/projects/jquery-bbq-plugin/

// Since the event is only triggered when the hash changes, we need

// to trigger the event now, to handle the hash the page may have

// loaded with.

$(window).trigger( "hashchange" );

$("#executeBtn").attr('disabled', false);

$("#executeBtn").click(function() {

$('#executeBtn').html("Please wait ... processing your code");

$('#executeBtn').attr('disabled', true);

$("#pyOutputPane").hide();

$.post("cgi-bin/web_exec.py",

{user_script : $("#pyInput").val()},

function(traceData) {

renderPyCodeOutput($("#pyInput").val());

enterVisualizeMode(traceData);

},

"json");

});

$("#editBtn").click(function() {

enterEditMode();

});

// canned examples

$("#tutorialExampleLink").click(function() {

$.get("example-code/py_tutorial.txt", function(dat) {$("#pyInput").val(dat);});

return false;

});

$("#strtokExampleLink").click(function() {

$.get("example-code/strtok.txt", function(dat) {$("#pyInput").val(dat);});

return false;

});

$("#fibonacciExampleLink").click(function() {

$.get("example-code/fib.txt", function(dat) {$("#pyInput").val(dat);});

return false;

});

$("#memoFibExampleLink").click(function() {

$.get("example-code/memo_fib.txt", function(dat) {$("#pyInput").val(dat);});

return false;

});

$("#factExampleLink").click(function() {

$.get("example-code/fact.txt", function(dat) {$("#pyInput").val(dat);});

return false;

});

$("#filterExampleLink").click(function() {

$.get("example-code/filter.txt", function(dat) {$("#pyInput").val(dat);});

return false;

});

$("#insSortExampleLink").click(function() {

$.get("example-code/ins_sort.txt", function(dat) {$("#pyInput").val(dat);});

return false;

});

$("#aliasExampleLink").click(function() {

$.get("example-code/aliasing.txt", function(dat) {$("#pyInput").val(dat);});

return false;

});

$("#newtonExampleLink").click(function() {

$.get("example-code/sqrt.txt", function(dat) {$("#pyInput").val(dat);});

return false;

});

$("#oopSmallExampleLink").click(function() {

$.get("example-code/oop_small.txt", function(dat) {$("#pyInput").val(dat);});

return false;

});

$("#mapExampleLink").click(function() {

$.get("example-code/map.txt", function(dat) {$("#pyInput").val(dat);});

return false;

});

$("#oop1ExampleLink").click(function() {

$.get("example-code/oop_1.txt", function(dat) {$("#pyInput").val(dat);});

return false;

});

$("#oop2ExampleLink").click(function() {

$.get("example-code/oop_2.txt", function(dat) {$("#pyInput").val(dat);});

return false;

});

$("#inheritanceExampleLink").click(function() {

$.get("example-code/oop_inherit.txt", function(dat) {$("#pyInput").val(dat);});

return false;

});

$("#sumExampleLink").click(function() {

$.get("example-code/sum.txt", function(dat) {$("#pyInput").val(dat);});

return false;

});

$("#pwGcdLink").click(function() {

$.get("example-code/wentworth_gcd.txt", function(dat) {$("#pyInput").val(dat);});

return false;

});

$("#pwSumListLink").click(function() {

$.get("example-code/wentworth_sumList.txt", function(dat) {$("#pyInput").val(dat);});

return false;

});

$("#towersOfHanoiLink").click(function() {

$.get("example-code/towers_of_hanoi.txt", function(dat) {$("#pyInput").val(dat);});

return false;

});

$("#pwTryFinallyLink").click(function() {

$.get("example-code/wentworth_try_finally.txt", function(dat) {$("#pyInput").val(dat);});

return false;

});

// select an example on start-up:

$("#aliasExampleLink").trigger('click');

});