start using new placeholders on login page

app/views/sessions/new.haml

@@ -1,4 +1,4 @@
--#   Copyright (c) 2010-2011, Diaspora Inc.  This file is
+-#   Copyright (c) 2010-2012, Diaspora Inc.  This file is
 -#   licensed under the Affero General Public License version 3 or later.  See
 -#   the COPYRIGHT file.
 
@@ -27,12 +27,12 @@
 
       %p
         = f.label :username , t('username')
-        = f.text_field :username, :tabindex => 1, :value => prefilled_username
+        = f.text_field :username, :tabindex => 1, :value => prefilled_username, :placeholder => t('username')
       %br
 
       %p
         = f.label :password , t('password')
-        = f.password_field :password, :tabindex => 2
+        = f.password_field :password, :tabindex => 2, :placeholder => t('password')
 
         - if display_password_reset_link?
           = link_to t('devise.shared.links.forgot_your_password'), new_password_path(resource_name), :id => "forgot_password_link", :tabindex => 5

config/assets.yml

@@ -28,11 +28,11 @@ javascripts:
     - public/javascripts/vendor/jquery-ui-1.8.9.custom.min.js
     - public/javascripts/vendor/jquery.charcount.js
     - public/javascripts/vendor/jquery.expander.js
+    - public/javascripts/vendor/jquery.placeholder.js
     - public/javascripts/vendor/timeago.js
     - public/javascripts/vendor/facebox.js
     - public/javascripts/jquery.infinitescroll-custom.js
     - public/javascripts/jquery.autocomplete-custom.js
-    - public/javascripts/jquery.infieldlabel-custom.js
     - public/javascripts/keycodes.js
     - public/javascripts/fileuploader-custom.js
 

public/javascripts/view.js

@@ -7,11 +7,11 @@ var View = {
     /* Buttons */
     $("input:submit").addClass("button");
 
-    /* In field labels */
+    /* label placeholders */
-    $("label").inFieldLabels();
+    $("input, textarea").placeholder();
-    $(document).bind('afterReveal.facebox', function() {
+    if( jQuery.fn.placeholder.input ) {
-      jQuery("#facebox label").inFieldLabels();
+      $("input[placeholder], textarea[placeholder]").siblings("label").hide();
-    });
+    }
 
     /* "Toggling" the search input */
     $(this.search.selector)

public/stylesheets/sass/application.sass

@@ -886,14 +886,22 @@ form p.checkbox_select
     :top 6px
 
 label:not(.bootstrapped)
-  :font
+  :display none
-    :weight normal
+  :font-weight normal
+
+@mixin placeholder_styles
   :color #999
-  :position absolute
+  :text-shadow 0 1px 1px #eeeeee
-  :top 3px
+  
-  :left 0.48em
+.placeholder
-  :text
+  @include placeholder_styles
-    :shadow 0 1px 1px #eee
+
+/* those can't be combined, see: http://stackoverflow.com/questions/2610497 */
+*::-webkit-input-placeholder
+  @include placeholder_styles
+  
+*:-moz-placeholder
+  @include placeholder_styles
 
 #file-upload
   input