Merge pull request #68 from cfiorini/meta_url

Added more stuff for SEO techniques

lib/assets/javascripts/_request_manager.js.coffee

@@ -30,7 +30,7 @@ class RequestManager
         self._html_loaded($target, data, status, xhr)
     ).fail(
       (xhr, status, error) ->
-        self._fail($target, status, state, error, xhr.status)
+        self._fail($target, status, state, error, xhr.status, xhr.responseText)
     ).always(
       (data_or_xhr, status, xhr_or_error)->
         self._always($target, status, state)
@@ -81,12 +81,16 @@ class RequestManager
         =>
           @_title(response.title())
           @_description(response.description())
+          @_canonical(response.canonical())
+          @_robots(response.robots())
+          @_link_rel_prev(response.link_rel_prev())
+          @_link_rel_next(response.link_rel_next())
           @_done($target, status, state, response.content())
       )
 
-  _fail: ($target, status, state, error, code) ->
+  _fail: ($target, status, state, error, code, data) ->
     $(document).trigger('page:fail'
-      [$target, status, decodeURI(state.url), error, code]
+      [$target, status, decodeURI(state.url), error, code, data]
     )
 
   _always: ($target, status, state) ->
@@ -102,6 +106,26 @@ class RequestManager
       $(document).trigger('page:description', decodeURI(value))
       $('meta[name="description"]').attr('content', decodeURI(value))
 
+  _canonical: (value) ->
+    if value?
+      $(document).trigger('page:canonical', decodeURI(value))
+      $('link[rel="canonical"]').attr('href', decodeURI(value))
+
+  _robots: (value) ->
+    if value?
+      $(document).trigger('page:robots', decodeURI(value))
+      $('meta[name="robots"]').attr('content', decodeURI(value))
+
+  _link_rel_prev: (value) ->
+    if value?
+      $(document).trigger('page:link_rel_prev', decodeURI(value))
+      $('link[rel="prev"]').attr('href', decodeURI(value))
+
+  _link_rel_next: (value) ->
+    if value?
+      $(document).trigger('page:link_rel_next', decodeURI(value))
+      $('link[rel="next"]').attr('href', decodeURI(value))
+
 
 window._Wiselinks = {} if window._Wiselinks == undefined
 window._Wiselinks.RequestManager = RequestManager

lib/assets/javascripts/_response.js.coffee

@@ -42,6 +42,44 @@ class Response
     else
       @xhr.getResponseHeader('X-Wiselinks-Description')
 
+  canonical: ->
+    @_canonical ?= @_extract_canonical()
+
+  _extract_canonical: ->
+    if @_is_full_document_response()
+      $('link[rel="canonical"]', @_get_doc()).text()
+    else
+      @xhr.getResponseHeader('X-Wiselinks-Canonical')
+
+
+  robots: ->
+    @_robots ?= @_extract_robots()
+
+  _extract_robots: ->
+    if @_is_full_document_response()
+      $('meta[name="robots"]', @_get_doc()).text()
+    else
+      @xhr.getResponseHeader('X-Wiselinks-Robots')
+
+
+  link_rel_prev: ->
+    @_link_rel_prev ?= @_extract_link_rel_prev()
+
+  _extract_link_rel_prev: ->
+    if @_is_full_document_response()
+      $('link[rel="prev"]', @_get_doc()).text()
+    else
+      @xhr.getResponseHeader('X-Wiselinks-LinkRelPrev')
+
+  link_rel_next: ->
+    @_link_rel_next ?= @_extract_link_rel_next()
+
+  _extract_link_rel_next: ->
+    if @_is_full_document_response()
+      $('link[rel="next"]', @_get_doc()).text()
+    else
+      @xhr.getResponseHeader('X-Wiselinks-LinkRelNext')
+
   _extract_content: ->
     if @_is_full_document_response()
       @_get_doc_target_node().html()

lib/wiselinks/controller_methods.rb

@@ -4,6 +4,10 @@ module ControllerMethods
     def self.included(base)
       base.helper_method :wiselinks_title
       base.helper_method :wiselinks_description
+      base.helper_method :wiselinks_canonical
+      base.helper_method :wiselinks_robots
+      base.helper_method :wiselinks_link_rel_prev
+      base.helper_method :wiselinks_link_rel_next
       base.before_filter :set_wiselinks_url
     end
 
@@ -27,6 +31,34 @@ def wiselinks_description(value)
       end
     end
 
+    def wiselinks_canonical(value)
+      if self.request.wiselinks? && value.present?
+        Wiselinks.log("canonical: #{value}")
+        self.response.headers['X-Wiselinks-Canonical'] = URI.encode(value)
+      end
+    end
+
+    def wiselinks_robots(value)
+      if self.request.wiselinks? && value.present?
+        Wiselinks.log("robots: #{value}")
+        self.response.headers['X-Wiselinks-Robots'] = URI.encode(value)
+      end
+    end
+
+    def wiselinks_link_rel_prev(value)
+      if self.request.wiselinks? && value.present?
+        Wiselinks.log("link_rel_prev: #{value}")
+        self.response.headers['X-Wiselinks-LinkRelPrev'] = URI.encode(value)
+      end
+    end
+
+    def wiselinks_link_rel_next(value)
+      if self.request.wiselinks? && value.present?
+        Wiselinks.log("link_rel_next: #{value}")
+        self.response.headers['X-Wiselinks-LinkRelNext'] = URI.encode(value)
+      end
+    end
+
     def set_wiselinks_url
       # self.response.headers['X-Wiselinks-Url'] = request.env['REQUEST_URI'] if self.request.wiselinks?
       self.response.headers['X-Wiselinks-Url'] = request.url if self.request.wiselinks?