Rewrite JavaScript on main page

Both feedback form and calculator interaction now in its own class.

static/js/application.js

@@ -0,0 +1,75 @@
+// Generated by CoffeeScript 1.3.2-pre
+(function() {
+
+  window.Calculator = (function() {
+
+    function Calculator() {}
+
+    Calculator.bind = function() {
+      var calculator;
+      calculator = new Calculator;
+      $('.calc').click(calculator.toggle);
+      $('form#calculator').submit(calculator.calculate).submit(function(e) {
+        return e.preventDefault();
+      });
+      return $('div.help-wrapper a').hover(calculator.helpToggle).click(function(e) {
+        return e.preventDefault();
+      });
+    };
+
+    Calculator.prototype.toggle = function() {
+      $('li.calc-main').toggleClass('open');
+      $('#calculator_wrapper #calculator_input').focus();
+      return $('.calc').toggleClass('closed');
+    };
+
+    Calculator.prototype.helpToggle = function() {
+      return $('.help').toggleClass('shown');
+    };
+
+    Calculator.prototype.calculate = function() {
+      return $.getJSON('/calculate', {
+        equation: $('#calculator_input').val()
+      }, function(data) {
+        return $('#calculator_output').val(data.result);
+      });
+    };
+
+    return Calculator;
+
+  })();
+
+  window.FeedbackForm = (function() {
+
+    function FeedbackForm() {}
+
+    FeedbackForm.bind = function() {
+      return $('#feedback_button').click(function() {
+        var data;
+        data = {
+          subject: $('#feedback_subject').val(),
+          message: $('#feedback_message').val(),
+          url: window.location.href
+        };
+        return $.post('/send_feedback', data, function() {
+          return $('#feedback_div').html('Feedback submitted. Thank you');
+        }, 'json');
+      });
+    };
+
+    return FeedbackForm;
+
+  })();
+
+  $(function() {
+    $.ajaxSetup({
+      headers: {
+        'X-CSRFToken': $.cookie('csrftoken')
+      }
+    });
+    FeedbackForm.bind();
+    Calculator.bind();
+    return $("a[rel*=leanModal]").leanModal();
+  });
+
+}).call(this);