redmine#2555 replace Help online Google search

This is the helpcontent2/ part of the patch.

Add xapian-omega search to online Help.

The patch replaces Google custom search with xapian-omega search.

A new build key is introduced.

--with-omindex=server : Localizes and adds the xapian result page
template, adds the xapian form to each Help page.

--with-omindex=noxap : do not localize the result template and
do not add a form in the Help page.

--with-omindex= will force Online Help build.

Default is noxap

NOTES:
- xapian-omega databases are built in the server.
- searches returns results only on localized Help pages, avoiding same
resulis in many languages.

TODO:
- Tweak the xapian-omega result page CSS and markup.

Change-Id: I3dc2b79c4111f61fd5fea01b1f8c95bfacab1e8f
Reviewed-on: https://gerrit.libreoffice.org/79366
Tested-by: Jenkins
Reviewed-by: Guilhem Moulin <guilhem@libreoffice.org>
Tested-by: Guilhem Moulin <guilhem@libreoffice.org>

1 files changed, 15 insertions, 26 deletions

diff --git a/help3xsl/online_transform.xsl b/help3xsl/online_transform.xsl
index 2ca8deded7..f8d6dc2f91 100644
--- a/help3xsl/online_transform.xsl
+++ b/help3xsl/online_transform.xsl
@@ -21,7 +21,6 @@
 
 <xsl:output indent="yes" method="html" doctype-system= "about:legacy-compat"/>
 
-<xsl:include href="localized.xsl"/>
 <xsl:include href="links.txt.xsl"/>
 <!--
 ############################
@@ -34,6 +33,7 @@
 <xsl:param name="Language"/>
 <xsl:param name="productname"/>
 <xsl:param name="productversion"/>
+<xsl:param name="xapian"/>
 
 <xsl:param name="System" select="'WIN'"/>
 <xsl:param name="imgtheme" select="''"/>
@@ -142,7 +142,7 @@
         <base href="{$install}"/>
         <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
         <xsl:if test="$online">
-            <meta http-equiv="Content-Security-Policy" content="script-src 'self' 'unsafe-inline' 'unsafe-eval' piwik.documentfoundation.org *.google.com *.googleapis.com"/>
+            <meta http-equiv="Content-Security-Policy" content="script-src 'self' 'unsafe-inline' 'unsafe-eval' piwik.documentfoundation.org"/>
         </xsl:if>
         <title><xsl:value-of select="$titleL10N"/></title>
         <link rel="shortcut icon" href="{$target}media/navigation/favicon.ico"/>
@@ -221,32 +221,21 @@
     <div id="DisplayArea" itemprop="articleBody">
         <xsl:apply-templates select="/helpdocument/body"/>
     </div>
-    <div class="google-donation">
-        <xsl:if test="$online">
-            <div class="google-search">
-                <script type="text/javascript">
-                    <![CDATA[
-                    (function() {]]>
-                    <xsl:call-template name="getToken"><xsl:with-param name="lang" select="$lang"/></xsl:call-template>
-                    <![CDATA[
-                    var gcse = document.createElement('script');
-                    gcse.type = 'text/javascript';
-                    gcse.async = true;
-                    gcse.src = 'https://cse.google.com/cse.js?cx=' + cx;
-                    var s = document.getElementsByTagName('script')[0];
-                    s.parentNode.insertBefore(gcse, s);
-                    })();
-                    ]]>
-                </script>
-                <xsl:text disable-output-escaping="yes">&lt;gcse:search&gt;&lt;/gcse:search&gt;</xsl:text>
-            </div>
+    <xsl:if test="$online">
+        <div class="xapian-donation">
+            <xsl:if test="$xapian='yes'">
+                <div class="xapian-omega-search">
+                    <form name="P" method="get" action="/{$productversion}/{$lang}/search" target="_top">
+                        <input id="omega-autofocus" type="search" name="P" size="65"/>
+                        <input type="submit" class="xapian-omega-search-button" value="&#x1f50d;"/>
+                    </form>
+                </div>
+            </xsl:if>
             <div class="donation">
-                <p><a href="https://www.libreoffice.org/donate/?pk_campaign=help" target ="_blank">
-                    <xsl:value-of select="$ui_donate"/>
-                </a></p>
+                <p><a href="https://www.libreoffice.org/donate/?pk_campaign=help" target ="_blank"><xsl:value-of select="$ui_donate"/></a></p>
             </div>
-        </xsl:if>
-    </div>
+        </div>
+    </xsl:if>
     <footer>
         <xsl:if test="$online">
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