Fill username automatically in (Forget Password)

Fill the username automatically in the "Forget Password" form
if the user already entered his username on the login page

mediagoblin/static/js/autofilledin_password.js

@@ -0,0 +1,27 @@
+/**
+ * GNU MediaGoblin -- federated, autonomous media hosting
+ * Copyright (C) 2012 MediaGoblin contributors.  See AUTHORS.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+$(document).ready(function(){
+  $('#forgot_password').click(function(event){
+    event.preventDefault();
+    window.location.pathname = $(this).attr('href') + '?username=' +
+                               $('#username').val();
+  });
+
+  $('#username').val(window.location.search.match(/username=(.*)/)[1]);
+});

mediagoblin/templates/mediagoblin/auth/forgot_password.html

@@ -19,6 +19,11 @@
 
 {% import "/mediagoblin/utils/wtforms.html" as wtforms_util %}
 
+{% block mediagoblin_head %}
+  <script type="text/javascript"
+          src="{{ request.staticdirect('/js/autofilledin_password.js') }}"></script>
+{% endblock %}
+
 {% block mediagoblin_content %}
   <form action="{{ request.urlgen('mediagoblin.auth.forgot_password') }}"
         method="POST" enctype="multipart/form-data">

mediagoblin/templates/mediagoblin/auth/login.html

@@ -19,6 +19,11 @@
 
 {% import "/mediagoblin/utils/wtforms.html" as wtforms_util %}
 
+{% block mediagoblin_head %}
+  <script type="text/javascript"
+          src="{{ request.staticdirect('/js/autofilledin_password.js') }}"></script>
+{% endblock %}
+
 {% block mediagoblin_content %}
   <form action="{{ request.urlgen('mediagoblin.auth.login') }}"
         method="POST" enctype="multipart/form-data">
@@ -38,7 +43,7 @@
       {% endif %}
       {{ wtforms_util.render_divs(login_form) }}
         <p>
-          <a href="{{ request.urlgen('mediagoblin.auth.forgot_password') }}">
+          <a href="{{ request.urlgen('mediagoblin.auth.forgot_password') }}" id="forgot_password">
           {% trans %}Forgot your password?{% endtrans %}</a>
         </p>
       <div class="form_submit_buttons">