Improve styling/branding options In addition to the header introduce more customizable template parts that are depending on 'customVariant' to make injection of HTML at various places possible. The 'customHeader' config variable is renamed to 'customVariant', but the old name is still recognised as an alias for the new name to ensure backwards compatibility. The new template parts are: customHeadTagPart -> at the end of the <head> tag customFooter -> The footer tag with contents The new fixed templates .footerFormatBadge and .footerPoweredBy can be used in custom footers. Change-Id: I95a97a3805f4fb3011bc932d4f9799ec5a2c78c4

diff --git a/gitiles-servlet/src/main/resources/com/google/gitiles/templates/Common.soy b/gitiles-servlet/src/main/resources/com/google/gitiles/templates/Common.soy
index 2a7ba40..9ca25d3 100644
--- a/gitiles-servlet/src/main/resources/com/google/gitiles/templates/Common.soy
+++ b/gitiles-servlet/src/main/resources/com/google/gitiles/templates/Common.soy

@@ -21,7 +21,7 @@
  * @param? repositoryName repository name for this page, if applicable.
  * @param? menuEntries optional list of menu entries with "text" and optional
  *     "url" keys.
- * @param? headerVariant variant name for custom header.
+ * @param? customVariant variant name for custom styling.
  * @param breadcrumbs navigation breadcrumbs for this page.
  * @param? css optional list of CSS URLs to include.
  * @param? containerClass optional class to append to the main container.
@@ -45,11 +45,13 @@
       <link rel="stylesheet" type="text/css" href="{$url}">
     {/foreach}
   {/if}
+  {delcall gitiles.customHeadTagPart variant="$customVariant ?: ''" /}
+
 </head>
 <body class="Site">
   <header class="Site-header">
     <div class="Header">
-      {delcall gitiles.customHeader variant="$headerVariant ?: 'default'" /}
+      {delcall gitiles.customHeader variant="$customVariant ?: ''" /}
 
       {if $menuEntries and length($menuEntries)}
         <div class="Header-menu">
@@ -84,32 +86,74 @@
 {/template}
 
 /**
+ * Default (empty) custom head tag part
+ *
+ * This can be used to include per-project CSS/JS by
+ * providing custom variants.
+ */
+{deltemplate gitiles.customHeadTagPart}
+  <!-- default customHeadTagPart -->
+{/deltemplate}
+
+/**
  * Default custom header implementation for Gitiles.
  */
-{deltemplate gitiles.customHeader variant="'default'"}
+{deltemplate gitiles.customHeader}
+<!-- default customHeader -->
 <div class="Header-title">
   {msg desc="short name of the application"}{gitiles.SITE_TITLE}{/msg}
 </div>
 {/deltemplate}
 
 /**
- * Standard footer.
+ * Footer 'powered by' element
+ *
+ * Please call this in custom variants as well.
+ */
+{template .footerPoweredBy}
+<span class="Footer-poweredBy">
+  Powered by <a href="https://code.google.com/p/gitiles/">Gitiles</a>
+</span>
+{/template}
+
+/**
+ * Footer format badge
+ *
+ * You can use this in custom footers as well.
+ */
+{template .footerFormatBadge}
+<span class="Footer-formats">
+  <a class="u-monospace Footer-formatsItem" href="?format=TEXT">{msg desc="text format"}txt{/msg}</a>
+    {sp}
+  <a class="u-monospace Footer-formatsItem" href="?format=JSON">{msg desc="JSON format"}json{/msg}</a>
+</span>
+{/template}
+
+/**
+ * Default Footer
+ */
+{deltemplate gitiles.customFooter}
+<!-- default customFooter -->
+<footer class="Site-footer">
+  <div class="Footer">
+   {call gitiles.footerPoweredBy /}
+   {call gitiles.footerFormatBadge /}
+  </div>
+</footer>
+{/deltemplate}
+
+/**
+ * Main footer.
+ *
+ * The footer tag part can be customized by creating a customFooter
+ * variant template.
+ *
+ * @param? customVariant variant name for custom styling.
  */
 {template .footer}
     </div> <!-- Container -->
   </div> <!-- Site-content -->
-  <footer class="Site-footer">
-    <div class="Footer">
-      <span class="Footer-poweredBy">
-        Powered by <a href="https://code.google.com/p/gitiles/">Gitiles</a>
-      </span>
-      <span class="Footer-formats">
-        <a class="u-monospace Footer-formatsItem" href="?format=TEXT">{msg desc="text format"}txt{/msg}</a>
-        {sp}
-        <a class="u-monospace Footer-formatsItem" href="?format=JSON">{msg desc="JSON format"}json{/msg}</a>
-      </span>
-    </div>
-  </footer>
+  {delcall gitiles.customFooter variant="$customVariant ?: ''" /}
 </body>
 </html>
 {/template}