I18n: changing to the same page on click - fixes #27

config.rb

@@ -1,9 +1,9 @@
+require 'lib/i18n_helpers'
+helpers I18nHelpers
+
 # Activate multi-language
 activate :i18n, :mount_at_root => :en
 
-# Activate and configure extensions
-# https://middlemanapp.com/advanced/configuration/#configuring-extensions
-
 activate :directory_indexes
 
 activate :autoprefixer do |prefix|
@@ -15,42 +15,8 @@
   activate :livereload
 end
 
-# Layouts
-# https://middlemanapp.com/basics/layouts/
-
 # Per-page layout changes
 page '/*.xml', layout: false
 page '/*.json', layout: false
 page '/*.txt', layout: false
 
-# With alternative layout
-# page '/path/to/file.html', layout: 'other_layout'
-
-# Proxy pages
-# https://middlemanapp.com/advanced/dynamic-pages/
-
-# proxy(
-#   '/this-page-has-no-template.html',
-#   '/template-file.html',
-#   locals: {
-#     which_fake_page: 'Rendering a fake page with a local variable'
-#   },
-# )
-
-# Helpers
-# Methods defined in the helpers block are available in templates
-# https://middlemanapp.com/basics/helper-methods/
-
-# helpers do
-#   def some_helper
-#     'Helping'
-#   end
-# end
-
-# Build-specific configuration
-# https://middlemanapp.com/advanced/configuration/#environment-specific-settings
-
-# configure :build do
-#   activate :minify_css
-#   activate :minify_javascript
-# end

lib/i18n_helpers.rb

@@ -0,0 +1,25 @@
+module I18nHelpers
+  # https://gist.github.com/johnnyshields/98a695df51b1e99f3593579d3c9a3fd1
+
+  def current_path_for_locale(loc = I18n.locale, is_link = true)
+    return 'javascript: void(0);' if is_link && I18n.locale == loc
+
+    url_regex = /\A\/(?:(#{I18n.available_locales.join('|')})\/)?/
+    current_page.url.gsub(url_regex, '').blank? ?
+        home_for_locale(loc) :
+        current_page.url.gsub(url_regex, root_for_locale(loc))
+  end
+
+  def path_for_locale(path, loc = I18n.locale)
+    root_for_locale(loc) + path
+  end
+
+  def home_for_locale(loc = I18n.locale)
+    root_for_locale(loc)
+  end
+
+  def root_for_locale(loc = I18n.locale)
+    loc == "en" ? '/' : "/#{loc}/"
+  end
+
+end

source/partials/navigation.html.erb

@@ -1,28 +1,28 @@
 <nav class="main-nav">
-	<div class="lang-wrapper">
-		<a href="#lang" class="lang-trigger"><%= t(:activeLang) %></a>
-		<ul id="lang" class="lang" role="menu">
-			<li role="menuitem">
-				<a href="/">English</a>
-			</li>
-			<li role="menuitem">
-				<a href="/es">Castellano</a>
-			</li>
-			<li role="menuitem">
-				<a href="/ca">Català</a>
-			</li>
-		</ul>
-	</div>
-	<div class="main-nav__links" id="nav-links">
-		<a href="<%= t(:path) %>/demo" class="main-nav__item"><%= t(:navDemo) %></a>
-	  <a href="<%= t(:path) %>/community" class="main-nav__item"><%= t(:navCommunity) %></a>
-	  <a href="<%= t(:path) %>/contract"class="main-nav__item"><%= t(:navContract) %></a>
-		<a href="https://github.com/decidim/decidim" target="_blank" class="main-nav__item">
-	    <%= t(:navCode) %>
-	  </a>
-	</div>
-		<a class="main-nav__trigger" href="#nav-links">
-			<span class="nav-icon"></span>
-			<span class="visually-hidden"><%= t(:navText) %></span>
-		</a>
+  <div class="lang-wrapper">
+    <a href="#lang" class="lang-trigger"><%= t(:activeLang) %></a>
+    <ul id="lang" class="lang" role="menu">
+      <li role="menuitem">
+        <%= link_to "English", current_path_for_locale("en") %>
+      </li>
+      <li role="menuitem">
+        <%= link_to "Castellano", current_path_for_locale("es") %>
+      </li>
+      <li role="menuitem">
+        <%= link_to "Català", current_path_for_locale("ca") %>
+      </li>
+    </ul>
+  </div>
+  <div class="main-nav__links" id="nav-links">
+    <a href="<%= t(:path) %>/demo" class="main-nav__item"><%= t(:navDemo) %></a>
+    <a href="<%= t(:path) %>/community" class="main-nav__item"><%= t(:navCommunity) %></a>
+    <a href="<%= t(:path) %>/contract"class="main-nav__item"><%= t(:navContract) %></a>
+    <a href="https://github.com/decidim/decidim" target="_blank" class="main-nav__item">
+      <%= t(:navCode) %>
+    </a>
+  </div>
+    <a class="main-nav__trigger" href="#nav-links">
+      <span class="nav-icon"></span>
+      <span class="visually-hidden"><%= t(:navText) %></span>
+    </a>
 </nav>