[DOXIASITETOOLS-183] added edit source feature
diff --git a/doxia-decoration-model/pom.xml b/doxia-decoration-model/pom.xml
index 60d9642..abce402 100644
--- a/doxia-decoration-model/pom.xml
+++ b/doxia-decoration-model/pom.xml
@@ -60,7 +60,7 @@
             <model>src/main/mdo/decoration.mdo</model>
           </models>
           <!-- TODO Do not forget to update the version in the decoration description. See DOXIASITETOOLS-98. -->
-          <version>1.7.0</version>
+          <version>1.8.0</version>
           <firstVersion>1.0.0</firstVersion>
         </configuration>
         <executions>
diff --git a/doxia-decoration-model/src/main/mdo/decoration.mdo b/doxia-decoration-model/src/main/mdo/decoration.mdo
index 7e192a5..cac9616 100644
--- a/doxia-decoration-model/src/main/mdo/decoration.mdo
+++ b/doxia-decoration-model/src/main/mdo/decoration.mdo
@@ -29,7 +29,7 @@
     <p>An XSD is available at:</p>
     <ul>
       <!-- There is no property filtering in Modello, this has to be updated manually. See DOXIASITETOOLS-98. -->
-      <li><a href="http://maven.apache.org/xsd/decoration-1.7.0.xsd">http://maven.apache.org/xsd/decoration-1.7.0.xsd</a></li>
+      <li><a href="http://maven.apache.org/xsd/decoration-1.8.0.xsd">http://maven.apache.org/xsd/decoration-1.8.0.xsd</a></li>
     </ul>
     ]]></description>
 
@@ -123,6 +123,15 @@
           <identifier>true</identifier>
         </field>
         <field>
+          <name>edit</name>
+          <description><![CDATA[
+            The base url to edit Doxia document sources.
+            In general, <code>${project.scm.url}</code> value should do the job. 
+          ]]></description>
+          <version>1.8.0+</version>
+          <type>String</type>
+        </field>
+        <field>
           <name>poweredBy</name>
           <description>Powered by logos list.</description>
           <version>1.0.0+</version>
diff --git a/doxia-site-renderer/src/main/java/org/apache/maven/doxia/siterenderer/RenderingContext.java b/doxia-site-renderer/src/main/java/org/apache/maven/doxia/siterenderer/RenderingContext.java
index b05c0c6..239e6ec 100644
--- a/doxia-site-renderer/src/main/java/org/apache/maven/doxia/siterenderer/RenderingContext.java
+++ b/doxia-site-renderer/src/main/java/org/apache/maven/doxia/siterenderer/RenderingContext.java
@@ -280,4 +280,16 @@
     {
         return isDoxiaSource() ? ( basedirRelativePath + '/' + inputName ) : null;
     }
+
+    /**
+     * Get url of the Doxia source calculate from given base url.
+     *
+     * @param base the base url to use
+     * @return the resulting url
+     * @since 1.8
+     */
+    public String getDoxiaSourcePath( String base )
+    {
+        return PathTool.calculateLink( getDoxiaSourcePath(), base );
+    }
 }
diff --git a/doxia-site-renderer/src/main/resources/org/apache/maven/doxia/siterenderer/resources/default-site.vm b/doxia-site-renderer/src/main/resources/org/apache/maven/doxia/siterenderer/resources/default-site.vm
index 77fd795..9409c82 100644
--- a/doxia-site-renderer/src/main/resources/org/apache/maven/doxia/siterenderer/resources/default-site.vm
+++ b/doxia-site-renderer/src/main/resources/org/apache/maven/doxia/siterenderer/resources/default-site.vm
@@ -58,7 +58,12 @@
     </div>
     <div id="breadcrumbs">
       #publishDate( "left" $decoration.publishDate $decoration.version )
-      <div class="xright">#links( $decoration.body.links )#publishDate( "right" $decoration.publishDate $decoration.version )</div>
+      <div class="xright">#links( $decoration.body.links )
+#*    *##if( $decoration.edit && $docRenderingContext.editable )
+        <li class="pull-right"><a href="$docRenderingContext.getDoxiaSourcePath( $decoration.edit )">[edit]</a></li>
+#*    *##end
+      #publishDate( "right" $decoration.publishDate $decoration.version )
+      </div>
       <div class="clear">
         <hr/>
       </div>