Add preview functionality to rich text controls

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

diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 2ccfcca2b0a5b8e33107d6731ae5f6b297ccf594..37dcf90e09de1c97e4ae4d62dfa96fb79f0b3860 100644 (file)
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -1,20 +1,16 @@
 module ApplicationHelper
   require 'rexml/document'
 
-  def sanitize(text)
-    Sanitize.clean(text, Sanitize::Config::OSM)
-  end
-
-  def htmlize(text)
-    return linkify(sanitize(simple_format(text)))
-  end
-
   def linkify(text)
-    return auto_link(text, :link => :urls, :html => { :rel => "nofollow" })
+    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
   end
 
   def html_escape_unicode(text)
-    chars = ActiveSupport::Multibyte::Chars.u_unpack(text).map do |c|
+    chars = ActiveSupport::Multibyte::Unicode.u_unpack(text).map do |c|
       c < 127 ? c.chr : "&##{c.to_s};"
     end
 
@@ -37,7 +33,7 @@ module ApplicationHelper
     js << javascript_strings_for_key("javascripts")
     js << "</script>\n"
 
-    return js
+    return raw(js)
   end
 
   def style_rules
@@ -50,33 +46,33 @@ module ApplicationHelper
     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)
+    return content_tag(:style, css, :type => "text/css")
   end
 
   def if_logged_in(tag = :div, &block)
-    concat(content_tag(tag, capture(&block), :class => "hide_unless_logged_in"))
+    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"))
+    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}"))
+      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}"))
+      content_tag(tag, capture(&block), :class => "hide_if_user_#{user.id}")
     else
-      concat(content_tag(tag, capture(&block)))
+      content_tag(tag, capture(&block))
     end
   end
 
   def if_administrator(tag = :div, &block)
-    concat(content_tag(tag, capture(&block), :class => "hide_unless_administrator"))
+    content_tag(tag, capture(&block), :class => "hide_unless_administrator")
   end
 
   def describe_location(lat, lon, zoom = nil, language = nil)
@@ -85,7 +81,7 @@ module ApplicationHelper
     url = "http://nominatim.openstreetmap.org/reverse?lat=#{lat}&lon=#{lon}&zoom=#{zoom}&accept-language=#{language}"
 
     begin
-      response = Timeout::timeout(4) do
+      response = OSM::Timer.timeout(4) do
         REXML::Document.new(Net::HTTP.get(URI.parse(url)))
       end
     rescue Exception
@@ -102,20 +98,44 @@ module ApplicationHelper
   def user_image(user, options = {})
     options[:class] ||= "user_image"
 
-    if user.image
-      image_tag url_for_file_column(user, "image"), options
-    else
-      image_tag "anon_large.png", options
-    end
+    image_tag user.image.url(:large), options
   end
 
   def user_thumbnail(user, options = {})
     options[:class] ||= "user_thumbnail"
 
-    if user.image
-      image_tag url_for_file_column(user, "image"), options
+    image_tag user.image.url(:small), options
+  end
+
+  def preferred_editor
+    if params[:editor]
+      params[:editor]
+    elsif @user and @user.preferred_editor
+      @user.preferred_editor
     else
-      image_tag "anon_small.png", options
+      DEFAULT_EDITOR
+    end
+  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")
+      end
+
+      output_buffer << content_tag(:div, :id => "#{id}_help", :class => "richtext_help") do
+        output_buffer << render("site/#{format}_help")
+        output_buffer << submit_tag(I18n.t("site.richtext_area.edit"), :id => "#{id}_doedit", :class => "richtext_doedit", :disabled => true)
+        output_buffer << submit_tag(I18n.t("site.richtext_area.preview"), :id => "#{id}_dopreview", :class => "richtext_dopreview")
+      end
     end
   end