Presentation work

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

diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index e10650ada1fa3cde95956725f5e679f146446156..5d61e8c6306caca559fe6c95c4eef180dbf826e3 100644 (file)
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -1,49 +1,107 @@
 module ApplicationHelper
-  def htmlize(text)
-    return auto_link(sanitize(simple_format(text)), :link => :urls, :html => { :rel => "nofollow" })
-  end
+  require 'rexml/document'
 
-  def html_escape_unicode(text)
-    chars = ActiveSupport::Multibyte::Chars.u_unpack(text).map do |c|
-      c < 127 ? c.chr : "&##{c.to_s};"
+  def linkify(text)
+    if text.html_safe?
+      Rinku.auto_link(text, :urls, tag_options(:rel => "nofollow")).html_safe
+    else
+      Rinku.auto_link(text, :urls, tag_options(:rel => "nofollow"))
     end
-
-    return chars.join("")
   end
 
   def rss_link_to(*args)
-    return link_to(image_tag("RSS.gif", :size => "16x16", :border => 0), Hash[*args], { :class => "rsssmall" });
+    return link_to(image_tag("RSS.png", :size => "16x16", :border => 0), Hash[*args], { :class => "rsssmall" });
   end
 
   def atom_link_to(*args)
-    return link_to(image_tag("RSS.gif", :size => "16x16", :border => 0), Hash[*args], { :class => "rsssmall" });
+    return link_to(image_tag("RSS.png", :size => "16x16", :border => 0), Hash[*args], { :class => "rsssmall" });
   end
 
-  def javascript_strings
-    js = ""
+  def style_rules
+    css = ""
+
+    css << ".hidden { display: none !important }";
+    css << ".hide_unless_logged_in { display: none !important }" unless @user;
+    css << ".hide_if_logged_in { display: none !important }" if @user;
+    css << ".hide_if_user_#{@user.id} { display: none !important }" if @user;
+    css << ".show_if_user_#{@user.id} { display: inline !important }" if @user;
+    css << ".hide_unless_administrator { display: none !important }" unless @user and @user.administrator?;
+    css << ".hide_unless_moderator { display: none !important }" unless @user and @user.moderator?;
 
-    js << "<script type='text/javascript'>\n"
-    js << "i18n_strings = new Array();\n"
-    js << javascript_strings_for_key("javascripts")
-    js << "</script>\n"
+    return content_tag(:style, css, :type => "text/css")
+  end
 
-    return js
+  def if_logged_in(tag = :div, &block)
+    content_tag(tag, capture(&block), :class => "hide_unless_logged_in")
   end
 
-private
+  def if_not_logged_in(tag = :div, &block)
+    content_tag(tag, capture(&block), :class => "hide_if_logged_in")
+  end
 
-  def javascript_strings_for_key(key)
-    js = ""
-    value = t(key, :locale => "en")
+  def if_user(user, tag = :div, &block)
+    if user
+      content_tag(tag, capture(&block), :class => "hidden show_if_user_#{user.id}")
+    end
+  end
 
-    if value.is_a?(String)
-      js << "i18n_strings['#{key}'] = '" << escape_javascript(t(key)) << "';\n"
+  def unless_user(user, tag = :div, &block)
+    if user
+      content_tag(tag, capture(&block), :class => "hide_if_user_#{user.id}")
     else
-      value.each_key do |k|
-        js << javascript_strings_for_key("#{key}.#{k}")
+      content_tag(tag, capture(&block))
+    end
+  end
+
+  def if_administrator(tag = :div, &block)
+    content_tag(tag, capture(&block), :class => "hide_unless_administrator")
+  end
+
+  def scale_to_zoom(scale)
+    Math.log(360.0 / (scale.to_f * 512.0)) / Math.log(2.0)
+  end
+
+  def richtext_area(object_name, method, options = {})
+    id = "#{object_name.to_s}_#{method.to_s}"
+    format = options.delete(:format) || "markdown"
+
+    content_tag(:div, :id => "#{id}_container", :class => "richtext_container") do
+      output_buffer << content_tag(:div, :id => "#{id}_content", :class => "richtext_content") do
+        output_buffer << text_area(object_name, method, options.merge("data-preview-url" => preview_url(:format => format)))
+        output_buffer << content_tag(:div, "", :id => "#{id}_preview", :class => "richtext_preview richtext")
+      end
+
+      output_buffer << content_tag(:div, :id => "#{id}_help", :class => "richtext_help") do
+        output_buffer << render("site/#{format}_help")
+        output_buffer << content_tag(:div, :class => "buttons") do
+          output_buffer << submit_tag(I18n.t("site.richtext_area.edit"), :id => "#{id}_doedit", :class => "richtext_doedit deemphasize", :disabled => true)
+          output_buffer << submit_tag(I18n.t("site.richtext_area.preview"), :id => "#{id}_dopreview", :class => "richtext_dopreview deemphasize")
+        end
       end
     end
+  end
+
+  def dir
+    if dir = params[:dir]
+      dir == "rtl" ? "rtl" : "ltr"
+    else
+      I18n.t("html.dir")
+    end
+  end
+
+  def friendly_date(date)
+    content_tag(:span, time_ago_in_words(date), :title => l(date, :format => :friendly))
+  end
+
+  def body_class
+    if content_for? :body_class
+      content_for :body_class
+    else
+      "#{params[:controller]} #{params[:controller]}-#{params[:action]}"
+    end
+  end
 
-    return js
+  def current_page_class(path)
+    :current if current_page?(path)
   end
 end