-# Methods added to this helper will be available to all templates in the application.
module ApplicationHelper
+ require 'rexml/document'
+
+ 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
+ end
+
+ def rss_link_to(*args)
+ 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.png", :size => "16x16", :border => 0), Hash[*args], { :class => "rsssmall" });
+ 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, :type => "text/css")
+ end
+
+ def if_logged_in(tag = :div, &block)
+ content_tag(tag, capture(&block), :class => "hide_unless_logged_in")
+ end
+
+ def if_not_logged_in(tag = :div, &block)
+ content_tag(tag, capture(&block), :class => "hide_if_logged_in")
+ end
+
+ def if_user(user, tag = :div, &block)
+ if user
+ content_tag(tag, capture(&block), :class => "hidden show_if_user_#{user.id}")
+ end
+ end
+
+ def unless_user(user, tag = :div, &block)
+ if user
+ content_tag(tag, capture(&block), :class => "hide_if_user_#{user.id}")
+ else
+ content_tag(tag, capture(&block))
+ end
+ end
+
+ def if_administrator(tag = :div, &block)
+ content_tag(tag, capture(&block), :class => "hide_unless_administrator")
+ end
+
+ def preferred_editor
+ if params[:editor]
+ params[:editor]
+ elsif @user and @user.preferred_editor
+ @user.preferred_editor
+ else
+ 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
+
+ def dir
+ if dir = params[:dir]
+ dir == "rtl" ? "rtl" : "ltr"
+ else
+ I18n.t("html.dir")
+ end
+ end
end