Convert diary views to use CSS based user specific components

[rails.git] / app / helpers / application_helper.rb

diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 5fa021bcf4e695c130c2e4094fe1ecb2ccdb68cc..3d2c70a132d566b36d6770226c2d8bbd4c919bb6 100644 (file)
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -40,6 +40,45 @@ module ApplicationHelper
     return js
   end
 
+  def style_rules
+    css = ""
+
+    css << ".hidden { display: none }";
+    css << ".hide_unless_logged_in { display: none }" unless @user;
+    css << ".hide_if_logged_in { display: none }" if @user;
+    css << ".hide_if_user_#{@user.id} { display: none }" if @user;
+    css << ".show_if_user_#{@user.id} { display: inline }" if @user;
+    css << ".hide_unless_administrator { display: none }" unless @user and @user.administrator?;
+
+    return content_tag(:style, css)
+  end
+
+  def if_logged_in(tag = :div, &block)
+    concat(content_tag(tag, capture(&block), :class => "hide_unless_logged_in"))
+  end
+
+  def if_not_logged_in(tag = :div, &block)
+    concat(content_tag(tag, capture(&block), :class => "hide_if_logged_in"))
+  end
+
+  def if_user(user, tag = :div, &block)
+    if user
+      concat(content_tag(tag, capture(&block), :class => "hidden show_if_user_#{user.id}"))
+    end
+  end
+
+  def unless_user(user, tag = :div, &block)
+    if user
+      concat(content_tag(tag, capture(&block), :class => "hide_if_user_#{user.id}"))
+    else
+      concat(content_tag(tag, capture(&block)))
+    end
+  end
+
+  def if_administrator(tag = :div, &block)
+    concat(content_tag(tag, capture(&block), :class => "hide_unless_administrator"))
+  end
+
   def describe_location(lat, lon, zoom = nil, language = nil)
     zoom = zoom || 14
     language = language || request.user_preferred_languages.join(',')