Wiki: design fixed

app/controllers/wikis_controller.rb

 class WikisController < ApplicationController
   before_filter :project
+  before_filter :add_project_abilities
   layout "project"
   
   def show

app/models/ability.rb

@@ -5,6 +5,7 @@ class Ability
     when "Issue" then issue_abilities(object, subject)
     when "Note" then note_abilities(object, subject)
     when "Snippet" then snippet_abilities(object, subject)
+    when "Wiki" then wiki_abilities(object, subject)
     else []
     end
   end
@@ -26,12 +27,14 @@ class Ability
       :write_issue,
       :write_snippet,
       :write_merge_request,
-      :write_note
+      :write_note,
+      :write_wiki
     ] if project.allow_write_for?(user)
 
     rules << [
       :modify_issue,
       :modify_snippet,
+      :modify_wiki,
       :admin_project,
       :admin_issue,
       :admin_snippet,
@@ -48,7 +51,7 @@ class Ability
   end
 
   class << self
-    [:issue, :note, :snippet, :merge_request].each do |name|
+    [:issue, :note, :snippet, :merge_request, :wiki].each do |name|
       define_method "#{name}_abilities" do |user, subject|
         if subject.author == user
           [

app/views/wikis/_form.html.haml

@@ -6,12 +6,13 @@
         - @wiki.errors.full_messages.each do |msg|
           %li= msg
 
-  .field
+  .clearfix
     = f.label :title
-    = f.text_field :title
+    .input= f.text_field :title, :class => :xxlarge
     = f.hidden_field :slug
-  .field
+  .clearfix
     = f.label :content
-    = f.text_area :content
+    .input= f.text_area :content, :class => :xxlarge
   .actions
-    = f.submit 'Save'
+    = f.submit 'Save', :class => "primary btn"
+    = link_to "Cancel", project_wiki_path(@project, :index), :class => "btn"

app/views/wikis/edit.html.haml

 %h1 Editing page
 
 = render 'form'
-
-= link_to 'Show', [@project, @wiki]

app/views/wikis/show.html.haml

+%h3
+  = @wiki.title
+  - if can? current_user, :write_wiki, @project
+    = link_to edit_project_wiki_path(@project, @wiki), :class => "right btn small" do
+      Edit
+
 %p#notice= notice
 
-%h3= @wiki.title
 = @wiki.content
 
 %br
-= link_to 'Edit', edit_project_wiki_path(@project, @wiki)