MAPG-69 implement password modification

public/static/css/mapguesser.css

@@ -69,6 +69,11 @@ sub {
     bottom: -0.4em;
 }
 
+hr {
+    border: solid #bbbbbb 1px;
+    margin: 10px 0;
+}
+
 .bold {
     font-weight: 500;
 }

public/static/js/mapguesser.js

@@ -88,6 +88,14 @@ var MapGuesser = {
         }
 
         document.getElementById('cover').style.visibility = 'hidden';
+    },
+
+    toggleDisableOnChange: function (input, button) {
+        if (input.defaultValue !== input.value) {
+            button.disabled = false;
+        } else {
+            button.disabled = true;
+        }
     }
 };
 

public/static/js/profile.js

@@ -0,0 +1,51 @@
+(function () {
+    var form = document.getElementById('profileForm');
+
+    form.elements.password_new.onkeyup = function () {
+        MapGuesser.toggleDisableOnChange(this, form.elements.save);
+    };
+
+    form.elements.password_new_confirm.onkeyup = function () {
+        MapGuesser.toggleDisableOnChange(this, form.elements.save);
+    };
+
+    form.onsubmit = function (e) {
+        document.getElementById('loading').style.visibility = 'visible';
+
+        e.preventDefault();
+
+        var formData = new FormData(form);
+
+        MapGuesser.httpRequest('POST', form.action, function () {
+            document.getElementById('loading').style.visibility = 'hidden';
+
+            if (this.response.error) {
+                var errorText;
+                switch (this.response.error) {
+                    case 'password_not_match':
+                        errorText = 'The given current password is wrong.'
+                        break;
+                    case 'passwords_too_short':
+                        errorText = 'The given new password is too short. Please choose a password that is at least 6 characters long!'
+                        break;
+                    case 'passwords_not_match':
+                        errorText = 'The given new passwords do not match.'
+                        break;
+                }
+
+                var profileFormError = document.getElementById('profileFormError');
+                profileFormError.style.display = 'block';
+                profileFormError.innerHTML = errorText;
+
+                form.elements.password_new.select();
+
+                return;
+            }
+
+            document.getElementById('profileFormError').style.display = 'none';
+            form.reset();
+            form.elements.save.disabled = true;
+            form.elements.password_new.focus();
+        }, formData);
+    };
+})();